UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

Form 20-F

(Mark One)
REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT
OF 1934
OR
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20172019
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                     to                      
OR
SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Date of event requiring this shell company report                      
Commission file number 001-38067
VERONA PHARMA PLC
(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
Not Applicable
(Translation of Registrant's Name into English)
 
United Kingdom
(Jurisdiction of incorporation or organization)
3 More London Riverside
London SE1 2RE
United Kingdom
(Address of principal executive offices)
Jan-Anders KarlssonDavid Zaccardelli
Chief Executive Officer
Verona Pharma plc
3 More London Riverside
London SE1 2RE
United Kingdom
Tel: +44 303 283 4200
(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)
Securities registered or to be registered pursuant to Section 12(b) of the Act.Act:
 
Title of each class
 
Trading symbol(s)
Name of each exchange on which registered
 
American Depositary Shares,
each representing 8 ordinary shares,
nominal value £0.05 per share
VRNAThe Nasdaq Stock Market LLC (Nasdaq Global Market)
Securities registered or to be registered pursuant to Section 12(g) of the Act.Act: None
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act.Act: None
Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.
Ordinary shares, nominal value £0.05 per share: 105,017,400105,326,638 as of December 31, 20172019
 
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    ☐  Yes    ☒  No
If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.    ☐  Yes    ☒  No
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days    ☒  Yes    ☐  No
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    ☒  Yes    ☐  No



Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer  ☐             Accelerated filer               Non-accelerated filer               Emerging growth company  ☒
If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards†standards provided pursuant to Section 13(a) of the Exchange Act.  ☐
† The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.
Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:
 
U.S. GAAP  ☐
International Financial Reporting Standards as issued
by the International Accounting Standards Board  ☒
Other  ☐
If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.    ☐  Item 17    ☐  Item 18
If this is an Annual Report,annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ☐  Yes    ☒  No






TABLE OF CONTENTS
  




GENERAL INFORMATION
All references in this Annual Report on Form 20-F, or the Annual Report, to “Verona,” the “company,” the "group", “we,” “us” and “our” refer to Verona Pharma plc and its consolidated subsidiaries. In this Annual Report, the U.S. Securities and Exchange Commission is referred to as the “SEC”, the Securities Act of 1933, as amended, is referred to as the “Securities Act” and the Securities Exchange Act of 1934, as amended, is referred to as the “Exchange Act.”
PRESENTATION OF FINANCIAL AND OTHER DATA
We report under International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standards Board, or IFRS.IASB. None of the financial statements in this Annual Report were prepared in accordance with generally accepted accounting principles in the United States. We present our financial statements in pounds sterling and in accordance with IFRS. We have made rounding adjustments to some of the figures included in this Annual Report. Accordingly, numerical figures shown as totals in some tables may not be an arithmetic aggregation of the figures that preceded them. All references in this Annual Report to “$,” “US$,” and “U.S. dollars” mean U.S. dollars and all references to “£” and “GBP” mean pounds sterling, unless otherwise noted.
TRADEMARKS, TRADENAMES AND SERVICE MARKS
This Annual Report may include trademarks, tradenames and service marks that are the property of other organizations. Solely for convenience, trademarks and tradenames referred to in this Annual Report appear without the ® and ™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner will not assert its rights, to these trademarks and tradenames.
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
This Annual Report contains statements that constitute forward-looking statements. All statements other than statements of historical facts contained in this Annual Report, including statements regarding our future results of operations and financial position, business strategy, on-going clinical trials, product candidate development plans, product approvals, research and development costs, timing and likelihood of success, plans and objectives of management for future operations and future results of anticipated products, are forward-looking statements. We make such forward-looking statements pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These statements involve known and unknown risks, uncertainties and other important factors, including those identified under “Risk Factors” in this Annual Report, that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.
Forward lookingForward-looking statements include, but are not limited to, statements about:
the development of RPL554,ensifentrine, including statements regarding the expected initiation, timing, progress and availability of data from our clinical trials;trials and regulatory approval;
the potential attributes and benefit of RPL554ensifentrine and its competitive position;
our ability to successfully commercialize RPL554,ensifentrine, if approved;
our estimates regarding expenses, future revenues, capital requirements and our need for additional financing;
our ability to acquire or in license new product candidates;
potential collaborations; and
the duration of our patent portfolio.portfolio; and
our ability toretain key personnel and recruit qualified personnel, as well as the successful transition of our chief executive officer and chief financial officer roles.
Forward looking statements speak only as of the date they are made, and we do not undertake any obligation to update them in light of new information or future developments or to release publicly any revisions to these statements in order to reflect later events or circumstances or to reflect the occurrence of unanticipated events. You should read this Annual Report and the documents that we reference in this Annual Report completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.
This Annual Report contains market data and industry forecasts that were obtained from industry publications. These data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. We have not independently verified any third-party information. While we believe the market position, market opportunity and market size information included in this Annual Report is generally reliable, such information is inherently imprecise.

PART I


ITEM 1: IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISORS
Not applicable.

ITEM 2: OFFER STATISTICS AND EXPECTED TIMETABLE
Not applicable.


ITEM 3: KEY INFORMATION
A. Selected Financial Data.
The following selected consolidated financial data should be read in conjunction with “Operating and Financial Review and Prospects,” our consolidated financial statements and related notes, and other financial information included in this Annual Report. WeThe consolidated financial and other data for the years ended December 31, 2019, 2018, and 2017 and as of December 31, 2019 and 2018 have been derived the consolidated statement of comprehensive income datafrom our audited financial statements and the consolidated statement ofnotes thereto included elsewhere in this Annual Report. Our audited financial positionstatements and the notes thereto and other data for the years ended December 31, 2016 and 2015 and as of December 31, 2017, 2016, and 2016 from our audited financial statements2015 are not included elsewhere in this Annual Report. Our historical results are not necessarily indicative of the results that should be expected in the future.
 Year Ended December 31,
 2015 2016 2017
 (£'000s, except per ordinary share data)
Consolidated statement of comprehensive income data:     
Research and development costs(7,270) (4,522) (23,717)
General and administrative costs(1,706) (2,498) (6,039)
Operating loss(8,976) (7,020) (29,756)
Finance income45
 1,841
 7,018
Finance expense(73) (794) (2,465)
Loss before taxation(9,004) (5,973) (25,203)
Taxation — credit1,509
 954
 4,706
Loss for the year(7,495) (5,019) (20,497)
Other comprehensive income / (loss) :     
Exchange differences on translating foreign operations4
 43
 (29)
Total comprehensive loss attributable to owners of the company(7,491) (4,976) (20,526)
Loss per ordinary share — basic and diluted (pence)(37.1) (15.0) (23.4)
The restatement is due to a change in accounting policy relating to movements in the assumed contingent obligation (see note 2.17 to the financial statements).

 Year Ended December 31,
 2015 2016 2017
 (£'000s)
Consolidated statement of financial position data:     
Cash and cash equivalents3,524
 39,785
 31,443
Short term investments
 
 48,819
Total assets7,840
 46,143
 89,504
Share premium26,650
 58,526
 118,862
Total liabilities2,407
 11,674
 9,623
Accumulated loss23,752
 28,728
 49,254
Total equity5,434
 34,469
 79,881
 Year Ended December 31,
 2019 2018 2017 Restated 2016 Restated 2015
 (£'000s)
Consolidated statement of comprehensive income data:         
Research and development costs(33,476) (19,294) (23,717) (4,522) (7,270)
General and administrative costs(7,607) (6,297) (6,039) (2,498) (1,706)
Operating loss(41,083) (25,591) (29,756) (7,020) (8,976)
Finance income2,351
 2,783
 7,018
 1,841
 45
Finance expense(474) (1,325) (2,465) (670) (64)
Loss before taxation(39,206) (24,133) (25,203) (5,849) (8,995)
Taxation — credit7,265
 4,232
 4,706
 954
 1,509
Loss for the year(31,941) (19,901) (20,497) (4,895) (7,486)
Other comprehensive income / (loss):    
    
Exchange differences on translating foreign operations(33) 38
 (29) 43
 4
Total comprehensive loss attributable to owners of the company(31,974) (19,863) (20,526) (4,852) (7,482)
Loss per ordinary share — basic and diluted (pence)(30.3) (18.9) (23.4) (14.6) (37.1)

 Year Ended December 31,
 2019 Restated 2018  Restated 2017 Restated 2016 Restated 2015
 (£'000s)
Consolidated statement of financial position data:         
Cash and cash equivalents22,934
 19,784
 31,443
 39,785
 3,524
Short term investments7,823
 44,919
 48,819
 
 
Total assets45,135
 74,745
 89,988
 46,627
 7,840
Share premium118,862
 118,862
 118,862
 58,526
 26,650
Total liabilities11,270
 11,327
 9,623
 11,674
 2,407
Accumulated loss100,627
 68,633
 48,770
 28,244
 23,392
Total equity33,865
 63,418
 80,365
 34,953
 5,434

Our business is primarily conducted in the United Kingdom and we maintain our books and records in pounds sterling.

B. Capitalization and Indebtedness.
Not applicable.

C. Reasons for the Offer and Use of Proceeds.
Not applicable.

D. Risk Factors.
You should carefully consider the risks and uncertainties described below and the other information in this Annual Report. Our business, financial condition or results of operations could be materially and adversely affected if any of these risks occur.

Risks Related to Our Business and Industry

We have a limited operating history and have never generated any product revenue.
We are a clinical-stage biopharmaceutical company with a limited operating history, and have incurred significant operating losses since our inception. We had net losseslosses of £5.0£31.9 million, £19.9 million and £20.5 million for the years ended December 31, 20162019, 2018 and 2017, respectively. As of December 31, 2017,2019, we had an accumulated loss of £49.3 million.£100.6 million (2018: £68.6 million). Our losses have resulted principally from expenses incurred in research and development of RPL554,ensifentrine, our only product candidate, and from general and administrative costs that we have incurred while building our business infrastructure. We expect to continue to incur significant operating losses for the foreseeable future as we expand our research and development efforts, advance our clinical development of ensifentrine, and seek to obtain regulatory approval for and commercialization for RPL554.commercialize ensifentrine. We anticipate that our expenses will increase substantially as we:
conduct our ongoing Phase 2 clinical trials and initiate and conduct our planned Phase 1 and 2 and PK clinical trials and any other future clinical trials of RPL554 for the treatment of COPD;
develop RPL554 as DPI and pMDI formulations for maintenance treatment of COPD, asthma and other respiratory diseases;
conduct our ongoing Phase 2a clinical trial and any future clinical trials of RPL554 for the treatment of CF;
seek to discover and develop or in-license additional respiratory product candidates;
conduct pre-clinical studies to support RPL554 and potentially other future products;
develop the manufacturing process and produce clinical and commercial supplies of RPL554;
seek regulatory approvals of RPL554;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize RPL554, if approved;
maintain, expand and protect our intellectual property portfolio;
secure, maintain or obtain freedom to operate for our in-licensed technologies and products;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts; and
expand our operations in the United States, the United Kingdom and possibly elsewhere.
conduct our ongoing and planned Phase 2 clinical trials and, subject to regulatory review, initiate and conduct Phase 3 clinical trials and other future clinical trials of ensifentrine for the treatment of chronic obstructive pulmonary disease, or COPD;
conduct any clinical trials of ensifentrine for the treatment of cystic fibrosis, or CF, asthma or other indications;
seek to discover and develop or in-license additional respiratory product candidates;
conduct pre-clinical studies to support ensifentrine and potentially other future product candidates;
develop the manufacturing processes and produce clinical and commercial supplies of the ensifentrine active pharmaceutical ingredient and formulated drug products derived from it;
seek regulatory approvals of ensifentrine;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize ensifentrine, if approved;
maintain, expand and protect our intellectual property portfolio;
secure, maintain or obtain freedom to operate for our in-licensed technologies and products;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts; and
expand our operations in the United States, the United Kingdom and possibly elsewhere.
Our expenses may also increase substantially if we experience any delays or encounter any issues with any of the above, including, but not limited to, failed pre-clinical studies or clinical trials, complex results, safety issues or regulatory challenges.

We have devoted substantially all of our financial resources and efforts to the research and development and pre-clinical studies and clinical trials of RPL554.ensifentrine. We are in the early stages ofcontinuing development of RPL554,ensifentrine, and we have not completed development of any product candidate or any drugs.
To become and remain profitable, we must succeed in developing, and eventually commercializing, products that generate significant revenue. This will require us to be successful in a range of challenging activities, including completing clinical trials of RPL554,ensifentrine, discovering and developing additional product candidates, obtaining regulatory approval for RPL554ensifentrine and any future product candidates that successfully complete clinical trials, establishing manufacturing and marketing capabilities and ultimately selling any products for which we may obtain regulatory approval. We are only in the preliminary stages of most of these activities. We may never succeed in these activities and, even if we do, we may never generate revenue that is significant enough to achieve profitability.

Because of the numerous risks and uncertainties associated with pharmaceutical product development, we are unable to accurately predict the timing or amount of increased expenses or when, or if, we will be able to achieve profitability. If we are required by the FDA, the EMA, or other regulatory authorities to perform studies in addition to those we currently anticipate, or if there are any delays in completing our clinical trials or the development of RPL554ensifentrine or any other product candidates, our expenses could increase and revenue could be further delayed.
Even if we do generate product royalties or product sales, we may never achieve or sustain profitability on a quarterly or annual basis. Our failure to sustain profitability would depress the market price of our ADSs and ordinary shares and could impair our ability to raise capital, expand our business, diversify our product offerings or continue our operations. A decline in the market price of our ADSs or ordinary shares also could cause our ADS holders and shareholders to lose all or a part of their investment.
We will need additional funding to complete development of RPL554ensifentrine and any future product candidates, and to commercialize our products, if approved. If we are unable to raise capital when needed, we could be forced to delay, reduce or eliminate our product development programs or commercialization efforts.
We expect our expenses to increase in connection with our ongoing and planned activities, particularly as we conduct our planned Phase 2 clinical trials and any other futureongoing clinical trials of RPL554ensifentrine and, subject to regulatory review, our planned Phase 3 clinical trials of ensifentrine, and develop RPL554ensifentrine for other indications. In addition, if we obtain regulatory approval for RPL554ensifentrine or any other product candidates, we expect to incur significant commercialization expenses related to activities including product positioning studies, product manufacturing, medical affairs, marketing, sales and distribution. Furthermore, we expect to incur additionalongoing costs associated with operating as a public company in the United Kingdom and the United States and maintaining a listing on both AIM, a market of the London Stock Exchange, and the Nasdaq Global Market, or Nasdaq. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise capital when needed or on attractive terms, we could be forced to delay, reduce or eliminate our research and development programs or any future commercialization efforts.
We expectestimate that our existing cash cash equivalentsresources and short-term investments will enable usnot be sufficient to fundcomplete a Phase 3 program of ensifentrine for the maintenance treatment of COPD. We will require additional funds to complete our operating expensesplanned Phase 3 clinical trials and capital expenditure requirements throughother studies, including any post-marketing studies, to support the endcommercial positioning of our Phase 2 development of nebulized RPL554 and our proof-of-concept development with DPI and pMDI formulations of RPL554ensifentrine for the treatment of COPD, as well as our Phase 2 development of nebulized RPL554 for the treatment of CF.if regulatory approval is received. We have based this estimate on assumptions that may prove to be wrong,incorrect, and we could use our available capital resources sooner than we currently expect, orexpect. In addition, our operating plan may change as a result of many factors unknown to us. These factors, among others, may necessitate that we seek additional capital sooner than currently planned. In addition, we may seek additional capital due to favorable market conditions or strategic considerations, even if we believe we have sufficient funds for our current or future operating plans.
Our future capital requirements will depend on many factors, including:
the cost, progress and results of our ongoing Phase 2 clinical trials and our planned Phase 1 and 2 and PK clinical trials and any other future clinical trials of RPL554 for the treatment of COPD and CF;
the cost of manufacturing clinical and commercial supplies of RPL554;
the scope, progress, results and costs of pre-clinical development, laboratory testing and clinical trials for RPL554 in other indications and for the development of DPI and pMDI formulations of RPL554 for maintenance treatment of COPD and potentially asthma and other respiratory diseases;
the costs, timing and outcome of regulatory review of RPL554, including post-marketing studies that could be required by regulatory authorities;
the costs, progress and results of our planned Phase 3 clinical trials for the maintenance treatment of COPD, subject to regulatory review;
the costs, timing and outcome of the regulatory review of ensifentrine, including any post-marketing studies that could be required by regulatory authorities, if regulatory approval is received;
the cost, progress and results of any other studies required to support the commercial positioning of ensifentrine for the treatment of COPD, if regulatory approval is received;
the cost, progress and results of any clinical trials for the treatment of CF or other indications;
the cost of manufacturing clinical and commercial supplies of the ensifentrine active ingredient and derived formulated drug products;
the scope, progress, results and costs of pre-clinical development, laboratory testing and clinical trials for ensifentrine in other indications and of the development of DPI and MDI formulations of ensifentrine for the maintenance treatment of COPD and potentially asthma and other respiratory diseases;
the costs, timing and outcome of potential future commercialization activities, including manufacturing, marketing, sales and distribution, for ensifentrine;
the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending any intellectual property-related claims, including any claims by third parties that we are infringing upon their intellectual property rights;
the timing and amount of revenue, if any, received from commercial sales of ensifentrine;
the sales price and availability of adequate third-party coverage and reimbursement for ensifentrine;
the effect of competing technological and market developments; and

the costs, timing and outcome of potential future commercialization activities, including manufacturing, marketing, sales and distribution, for RPL554;
the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending any intellectual property-related claims, including any claims by third parties that we are infringing upon their intellectual property rights;
the timing and amount of revenue, if any, received from commercial sales of RPL554;
the sales price and availability of adequate third-party coverage and reimbursement for RPL554;
the effect of competing technological and market developments; and
the extent to which we acquire or invest in businesses, products and technologies, including entering into licensing or collaboration arrangements for RPL554, although we currently have no commitments or agreements to complete any such transactions.
the extent to which we acquire or invest in businesses, products and technologies, including entering into licensing or collaboration arrangements for ensifentrine, although we currently have no commitments or agreements to complete any such transactions.
Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and commercialize RPL554.ensifentrine. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the terms of any financing may adversely affect our business, the holdings or the rights of our shareholders, or the value of our ordinary shares or ADSs.
If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay or discontinue our research and development programs relating to RPL554ensifentrine or any commercialization efforts, be unable to expand our operations, or be unable to otherwise capitalize on our business opportunities, as desired, which could harm our business and potentially cause us to discontinue operations.
We depend heavily on the success of RPL554,ensifentrine, our only product candidate under development. We cannot give any assurance that RPL554ensifentrine will receive regulatory approval for any indication, which is necessary before it can be commercialized. If we, and any collaborators with whom we may enter into agreements for the development and commercialization of RPL554,ensifentrine, are unable to commercialize RPL554,ensifentrine, or experience significant delays in doing so, our ability to generate revenue and our financial condition will be adversely affected.
We do not currently generate any revenues from sales of any products, and we may never be able to develop or commercialize a marketable product. We have invested substantially all of our efforts and financial resources in the development of RPL554,ensifentrine, and we do not have any other product candidate currently under development. Our ability to generate royalty and product revenues, which we do not expect will occur for at least the next several years, if ever, will depend heavily on the successful development and eventual commercialization of RPL554,ensifentrine, if approved, which may never occur. RPL554Ensifentrine will require additional clinical development, management of clinical, pre-clinicaland manufacturing activities, regulatory approval in multiple jurisdictions, procurement of manufacturing supply, commercialization, substantial additional investment and significant marketing efforts before we generate any revenues from product sales. We are not permitted to market or promote RPL554ensifentrine or any product candidates in the United States, Europe or other countries before we receive regulatory approval from the FDA, the EMA or comparable foreign regulatory authorities, and we may never receive such regulatory approval for RPL554ensifentrine or any future product candidate. We have not submitted a New Drug Application, or NDA, to the FDA, a Marketing Authorization Application, or MAA, to the EMA or comparable applications to other regulatory authorities and do not expect to be in a position to do so in the foreseeable future. The success of RPL554ensifentrine will depend on many factors, including the following:
we may not be able to demonstrate that RPL554 is safe and effective as a treatment for our targeted indications to the satisfaction of the applicable regulatory authorities;
the applicable regulatory authorities may require additional pre-clinical or clinical trials of RPL554 for the treatment of COPD, which would increase our costs and prolong our development;
the results of clinical trials of RPL554 may not meet the level of statistical or clinical significance required by the applicable regulatory authorities for marketing approval;
the applicable regulatory authorities may disagree with the number, design, size, conduct or implementation of our planned clinical trials;

we may not be able to demonstrate that ensifentrine is safe and effective as a treatment for our targeted indications to the satisfaction of the applicable regulatory authorities;
the contract research organizations, or CROs, that we retain to conduct clinical trials may take actions outside of our control that materially adversely impact our clinical trials;
the applicable regulatory authorities may not find the data from pre-clinical studies and clinical trials sufficient to demonstrate that the clinical and other benefits of RPL554 outweigh its safety risks;
unexpected operational or clinical issues may prevent completion or interpretation of clinical study results;
the applicable regulatory authorities may disagree with our interpretation of data from our pre-clinical studies and clinical trials or may require that we conduct additional studies;
the applicable regulatory authorities may not accept data generated at our clinical trial sites;
the applicable regulatory authorities may require additional pre-clinical or clinical trials, which would increase our costs and prolong our development;
the results of clinical trials of ensifentrine may not meet the level of statistical or clinical significance required by the applicable regulatory authorities for marketing approval;
the applicable regulatory authorities may disagree with the number, design, size, conduct or implementation of our planned clinical trials;
the contract research organizations, or CROs, that we retain to conduct clinical trials may take actions outside of our control that materially adversely impact our clinical trials;
the applicable regulatory authorities may not find the data from pre-clinical studies and clinical trials sufficient to demonstrate that the clinical and other benefits of ensifentrine outweigh its safety risks or may disagree with our interpretation of data;
our ability to demonstrate a non-clinical safety profile that is acceptable to the applicable regulatory authorities;
unexpected operational or clinical issues may prevent completion or interpretation of clinical study results;
unexpected manufacturing issues, product performance issues or stability issues may delay or otherwise adversely affect the progress of our clinical development program;
the applicable regulatory authorities may not accept data generated at our clinical trial sites;
if we submit an NDA to the FDA, and it is reviewed by an advisory committee, the FDA may have difficulties scheduling an advisory committee meeting in a timely manner or the advisory committee may recommend against approval of our application or may recommend that the FDA require, as a condition of approval, additional pre-clinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;
the applicable regulatory authorities may require development of a risk evaluation and mitigation strategy, or REMS, as a condition of approval;
the applicable regulatory authorities may identify deficiencies in the manufacturing processes or facilities of our third-party manufacturers;
the applicable regulatory authorities may change its approval policies or adopt new regulations;
if we license RPL554 to others, the efforts of those parties in completing clinical trials of, receiving regulatory approval for and commercializing, RPL554;
through our clinical trials, we may discover factors that limit the commercial viability of RPL554 or make the commercialization of RPL554 unfeasible;
if we retain rights under a collaboration agreement for RPL554, our efforts in completing pre-clinical studies and clinical trials of, receiving marketing approvals for, establishing commercial manufacturing capabilities for and commercializing, RPL554; and
if approved, acceptance of RPL554 by patients, the medical community and third-party payors, effectively competing with other therapies, a continued acceptable safety profile following approval and qualifying for, maintaining, enforcing and defending our intellectual property rights and claims.
If we or our collaborators, as applicable, do not achieve one or more of these factors in a timely manner or at all,the advisory committee may recommend against approval of our application or may recommend that the FDA require, as a condition of approval, additional pre-clinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;

the applicable regulatory authorities may require development of a risk evaluation and mitigation strategy, or REMS, as a condition of approval;
the applicable regulatory authorities may identify deficiencies in the manufacturing processes or facilities of our third-party manufacturers;
the applicable regulatory authorities may change their approval policies or adopt new regulations;
if we license ensifentrine to others, the efforts of those parties in completing clinical trials of, receiving regulatory approval for, and commercializing ensifentrine;
through our clinical trials, we may discover factors that limit the commercial viability of ensifentrine or make the commercialization of ensifentrine unfeasible;
if we retain rights under a collaboration agreement for ensifentrine, our efforts in completing pre-clinical studies and clinical trials of, receiving marketing approvals for, establishing commercial manufacturing capabilities for, and commercializing ensifentrine; and
if approved, acceptance of ensifentrine by patients, the medical community and third-party payors, effectively competing with other therapies, a continued acceptable safety profile following approval and qualifying for, maintaining, enforcing and defending our intellectual property rights and claims.
An unfavorable outcome in any of these factors could experienceresult in our experiencing significant delays or an inability to successfully commercialize RPL554.ensifentrine.
We cannot be certain that RPL554ensifentrine or any future product candidates will be successful in clinical trials or receive regulatory approval. Further, RPL554ensifentrine or any future product candidates may not receive regulatory approval even if they are successful in clinical trials. If we do not receive regulatory approvals for RPL554ensifentrine or any future product candidates, we may not be able to continue our operations. Even if we successfully obtain regulatory approvals to manufacture and market RPL554ensifentrine or any future product candidates, our revenues will be dependent, in part, upon the size of the markets in the territories for which we gain regulatory approval and have commercial rights. If the markets for patient subsets that we are targeting are not as significant as we estimate, we may not generate significant revenues from sales of such products, if approved.
We plan to seek regulatory approval to commercialize RPL554ensifentrine both in the United States and the EU, and potentially in additional foreign countries. While the scope of regulatory approval is similar in many countries, to obtain separate regulatory approval in multiple countries requires us to comply with the numerous and varying regulatory requirements of such countries regarding safety and efficacy and governing, among other things, clinical trials and commercial sales, pricing and distribution of RPL554,ensifentrine, and we cannot predict success in these jurisdictions.
Our limited operating history may make it difficult for investors to evaluate the success of our business to date and to assess our future viability.
Since our inception in 2005, we have devoted substantially all of our resources to developing RPL554,ensifentrine, building our intellectual property portfolio, developing our supply chain, planning our business, raising capital and providing

general and administrative support for these operations. We have completed multiple Phase 1 and 2 clinical trials for RPL554,ensifentrine, but we have not yet demonstrated our ability to successfully complete any Phase 3 or other pivotal clinical trials, obtain regulatory approvals, manufacture a commercial scalecommercial-scale product or arrange for a third party to do so on our behalf or conduct sales and marketing activities necessary for successful product commercialization. Additionally, we are not profitable and have incurred losses in each year since our inception, and we expect our financial condition and operating results to continue to fluctuate significantly from quarter to quarter and year to year due to a variety of factors, many of which are beyond our control. Consequently, any predictions investors make about our future success or viability may not be as accurate as they could be if we had a longer operating history.

Raising additional capital may cause dilution to our holders, restrict our operations or require us to relinquish rights to our technologies or product candidates.
Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of securities offerings, debt financings, license and collaboration agreements and research grants. If we raise capital through securities offerings, the ownership interest of our ADS holders and shareholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect these holders' rights as holders of our ADSs or ordinary shares. Debt financing, if available, could result in fixed payment obligations, and we may be required to agree to certain restrictive covenants, such as limitations on our ability to incur additional debt, to acquire, sell or license intellectual property rights, to make capital expenditures, or to declare dividends, or other operating restrictions. If we raise additional funds through collaboration or licensing agreements, we may have to relinquish valuable rights to our technologies, future revenue streams or product candidates or grant licenses on terms that may not be favorable to us. In addition, we could also be required to seek funds through arrangements with collaborators or others at an earlier stage than otherwise would be desirable. If we raise funds through research grants, we may be subject to certain requirements, which may limit our ability to use the funds or require us to share information from our research and development. Raising additional capital through any of these or other means could adversely affect our business and the holdings or rights of our ADS holders and shareholders, and may cause the market price of our ADSs or ordinary shares to decline.
Our business may become subject to economic, political, regulatory and other risks associated with international operations.
As a company based in the United Kingdom, our business is subject to risks associated with conducting business internationally. Almost all of our suppliers and collaborative and clinical trial relationships are located outside the United States. Accordingly, our future results could be harmed by a variety of factors, including:
economic weakness, including inflation, or political instability in particular non-U.S. economies and markets;
differing regulatory requirements for drug approvals in non-U.S. countries;
differing jurisdictions could present different issues for securing, maintaining or obtaining freedom to operate in such jurisdictions;
potentially reduced protection for intellectual property rights;
difficulties in compliance with non-U.S. laws and regulations;
changes in non-U.S. regulations and customs, tariffs and trade barriers;
changes in non-U.S. currency exchange rates of the euro and currency controls;
changes in a specific country's or region's political or economic environment, including the implications of the recent decision of the eligible members of the U.K. electorate for the United Kingdom to withdraw from the EU;
trade protection measures, import or export licensing requirements or other restrictive actions by U.S. or non-U.S. governments;
differing reimbursement regimes and price controls in certain non-U.S. markets;
negative consequences from changes in tax laws;
compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
workforce uncertainty in countries where labor unrest is more common than in the United States;

economic weakness, including inflation, or political instability in particular non-U.S. economies and markets;
difficulties associated with staffing and managing international operations, including differing labor relations;
production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and
business interruptions resulting from geo-political actions, including war and terrorism, or natural disasters including earthquakes, typhoons, floods and fires.
differing regulatory requirements for drug approvals in non-U.S. countries;
differing jurisdictions could present different issues for securing, maintaining or obtaining freedom to operate in such jurisdictions;
potentially reduced protection for intellectual property rights;
difficulties in compliance with non-U.S. laws and regulations;
changes in non-U.S. regulations and customs, tariffs and trade barriers;
changes in non-U.S. currency exchange rates of the euro and currency controls;
changes in a specific country's or region's political or economic environment, including the withdrawal of the United Kingdom from the EU;
trade protection measures, import or export licensing requirements or other restrictive actions by U.S. or non-U.S. governments;
differing reimbursement regimes and price controls in certain non-U.S. markets;
negative consequences from changes in tax laws;
compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
workforce uncertainty in countries where labor unrest is more common than in the United States;
difficulties associated with staffing and managing international operations, including differing labor relations;
production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and
business interruptions resulting from geo-political actions, including war and terrorism, or natural disasters including earthquakes, typhoons, floods and fires, or public health emergencies, such as the novel coronavirus (COVID-19).
The United Kingdom's withdrawal from the EU may have a negative effect on global economic conditions, financial markets and our business, which could reduce the price of our ADSs and ordinary shares.
Following a national referendum and enactment of legislation by the votegovernment of a majority of the eligible members of the electorate in the United Kingdom, to withdrawthe United Kingdom formally withdrew from the EU inon January 31, 2020 and entered into a national referendum held on June 23, 2016,transition period during which it will continue its ongoing and complex negotiations with the UK government served notice under Article 50EU relating to the future trading relationship between the parties. Significant political and economic uncertainty remains about whether the terms of the Treatyrelationship will differ materially from the terms before withdrawal, as well as about the possibility that a so-called “no deal” separation will occur if negotiations are not completed by the end of the European Union on March 29, 2017 to formally initiate a withdrawal process. The United Kingdom and the EU have a two-year period under Article 50 to negotiate the terms for withdrawal. Any extension of the negotiation period for withdrawal will require the consent of all of the remaining 27 member states.transition period.
The referendum and withdrawalThese developments have created significant uncertainty about the future relationship between the United Kingdom and the EU. Lack of clarity about future U.K. laws and regulations as the United Kingdom determines

which EU-derived laws and regulations to replace or replicate as part of a withdrawal, including financial laws and regulations, tax and free trade agreements, intellectual property rights, supply chain logistics, environmental, health and safety laws and regulations, immigration laws and employment laws, could further decrease foreign direct investment in the United Kingdom, increase costs, depress economic activity and restrict our access to capital. If the United Kingdom and the EU are unable to negotiate acceptable withdrawal terms or if other EU member states pursue withdrawal, barrier-free access between the United Kingdom and other EU member states or among the European economic area overall could be diminished or eliminated. These developments, or the perception that any of them could occur, have had and may continue to have a significant adverse effect on global economic conditions and the stability of global financial markets, and could significantly reduce global market liquidity and restrict the ability of key market participants to operate in certain financial markets. Asset valuations, currency exchange rates and credit ratings may be especially subject to increased market volatility. Any of these factors could have a significant adverse effect on our business, financial condition, results of operations and prospects.
Further, the United Kingdom’s withdrawal from the EU has resulted in the relocation of the EMA from the United Kingdom to the Netherlands. This relocation has caused, and may continue to cause, disruption in the administrative and medical scientific links between the EMA and the U.K. Medicines and Healthcare products Regulatory Agency, including delays in granting clinical trial authorization or marketing authorization, disruption of importation and export of active substance and other components of new drug formulations, and disruption of the supply chain for clinical trial product and final authorized formulations. The cumulative effects of the disruption to the regulatory framework may add considerably to the development lead time to marketing authorization and commercialization of products in the EU and/or the United Kingdom.
Exchange rate fluctuations may materially affect our results of operations and financial condition.
Owing to the international scope of our operations, fluctuations in exchange rates, particularly between the pound sterling and the U.S. dollar, may adversely affect us. Although we are based in the United Kingdom, we source research and development, manufacturing, consulting and other services from the United States and the EU. Further, potential future revenue may be derived from abroad, particularly from the United States. As a result, our business and the price of our ADSs and ordinary shares may be affected by fluctuations in foreign exchange rates not only between the pound sterling and the U.S. dollar, but also the currencies of other countries, which may have a significant impact on our results of operations and cash flows from period to period. Currently, we do not have any exchange rate hedging arrangements in place.
Risks Related to Development, Clinical Testing and Regulatory Approval
Our only product candidate, RPL554,ensifentrine, is in early-stage clinical development. Clinical drug development is a lengthy and expensive process with uncertain timelines and uncertain outcomes. If clinical trials of RPL554ensifentrine are prolonged or delayed, or if RPL554ensifentrine in later stage clinical trials fails to show the desired safety and efficacy, we or our collaborators may be unable to obtain required regulatory approvals and be unable to commercialize RPL554ensifentrine on a timely basis, or at all.
To obtain the requisite regulatory approvals to market and sell RPL554,ensifentrine, we or any collaborator for RPL554ensifentrine must demonstrate through extensive pre-clinical studies and clinical trials that RPL554ensifentrine is safe and effective in humans. Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during the clinical trial process. The results of pre-clinical studies and early-stage clinical trials of RPL554ensifentrine may not be predictive of the results of later-stage clinical trials. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having progressed through pre-clinical studies and initial clinical trials. A number of companies in the biopharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier trials. Our future clinical trial results may not be successful.

We may experience delays in our ongoing clinical trials and we do not know whether planned clinical trials will begin on time, need to be redesigned, enroll patients on time or be completed on schedule, if at all. Our clinical trials can be delayed, suspended, or terminated, or the utility of data from these trials may be compromised, for a variety of reasons, including the following:
delays in or failure to obtain regulatory approval to commence a trial;
delays in or failure to reach agreement on acceptable terms with prospective CROs and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
delays in or failure to obtain institutional review board, or IRB, approval at each site;
delays in or failure to recruit suitable patients to participate in a trial;
failure to have patients complete a trial or return for post-treatment follow-up;
clinical sites deviating from trial protocol or dropping out of a trial or committing gross misconduct or fraud;
adding new clinical trial sites;
inability to achieve or maintain double blinding of RPL554;
unexpected technical issues during manufacture of RPL554 and the corresponding drug product;
inability to manufacture sufficient quantities of RPL554 for use in clinical trials;
third-party actions claiming infringement by RPL554 in clinical trials inside or outside of the United States and obtaining injunctions interfering with our progress;
business interruptions resulting from geo-political actions, including war and terrorism, or natural disasters including earthquakes, typhoons, floods and fires;
safety or tolerability concerns causing us or our collaborators, as applicable, to suspend or terminate a trial if we or our collaborators find that the participants are being exposed to unacceptable health risks;
changes in regulatory requirements, policies and guidelines;
lower than anticipated retention rates of patients and volunteers in clinical trials;
our third-party research contractors failing to comply with regulatory requirements or to meet their contractual obligations to us in a timely manner, or at all;
delays in establishing the appropriate dosage levels or frequency of dosing or treatment in clinical trials;
difficulty in certain countries in identifying the sub-populations that we are trying to treat in a particular trial, which may delay enrollment and reduce the power of a clinical trial to detect statistically significant results;
the quality or stability of RPL554 falling below acceptable standards for either safety or efficacy; and
discoveries that may reduce the commercial viability of RPL554.
delays in or failure to obtain regulatory agreement on appropriate Phase 3 trial design, including dose and frequency of administration;
delays in of failure to obtain regulatory approval to commence a trial;
delays in or failure to reach agreement on acceptable terms with prospective CROs and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
delays in or failure to obtain institutional review board, or IRB, approval at each site;
delays in or failure to recruit suitable patients to participate in a trial;
failure to have patients complete a trial or return for post-treatment follow-up;

clinical sites deviating from trial protocol or dropping out of a trial or committing gross misconduct or fraud;
adding new clinical trial sites;
inability to achieve or maintain double blinding of ensifentrine;
unexpected technical issues during manufacture of ensifentrine and the corresponding drug products;
variability in drug product performance and/or stability;
inability to manufacture sufficient quantities of ensifentrine for use in clinical trials;
third-party actions claiming infringement by ensifentrine in clinical trials and obtaining injunctions interfering with our progress;
business interruptions resulting from geo-political actions, including war and terrorism, or natural disasters including earthquakes, typhoons, floods and fires;
safety or tolerability concerns causing us or our collaborators, as applicable, to suspend or terminate a trial if we or our collaborators find that the participants are being exposed to unacceptable health risks;
changes in regulatory requirements, policies and guidelines;
lower than anticipated retention rates of patients and volunteers in clinical trials;
our third-party research contractors failing to comply with regulatory requirements or to meet their contractual obligations to us in a timely manner, or at all;
delays in establishing the appropriate dosage levels or frequency of dosing or treatment in clinical trials;
difficulty in certain countries in identifying the sub-populations that we are trying to treat in a particular trial, which may delay enrollment and reduce the power of a clinical trial to detect statistically significant results;
the quality or stability of ensifentrine falling below acceptable standards for either safety or efficacy; and
discoveries that may reduce the commercial viability of ensifentrine.
We could encounter delays if a clinical trial is suspended or terminated by us, by the IRBs of the institutions in which such trials are being conducted, by the Data Review Committee or Data Safety Monitoring Board for such trial or by the FDA or other regulatory authorities. Such authorities may impose such a suspension or termination due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from using a drug, failure of our clinical trials to demonstrate adequate efficacy and safety, changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial.
Moreover, principal investigators for our clinical trials may serve as scientific advisors or consultants to us from time to time and receive compensation in connection with such services. Under certain circumstances, we may be required to report some of these relationships to the FDA or other regulatory authority. The FDA or other regulatory authority may conclude that a financial relationship between us and a principal investigator has created a conflict of interest or otherwise affected interpretation of the study. The FDA or other regulatory authority may therefore

question the integrity of the data generated at the applicable clinical trial site and the utility of the clinical trial itself may be jeopardized. This could result in a delay in approval, or rejection, of our marketing applications by the FDA or other regulatory authority, as the case may be, and may ultimately lead to the denial of marketing approval of RPL554.ensifentrine.
If we experience delays in the completion of any clinical trial of RPL554ensifentrine or any clinical trial of RPL554ensifentrine is terminated, the commercial prospects of RPL554ensifentrine may be harmed, and our ability to generate product revenues from RPL554,ensifentrine, if any, will be delayed. Moreover, any delays in completing our clinical trials will increase our costs, slow down the development and approval process of RPL554ensifentrine and jeopardize our ability to commence product sales and generate revenue, if any. Significant clinical trial delays could also allow our competitors to bring products to market before we do or shorten any periods during which we have the exclusive right to commercialize RPL554ensifentrine and could impair our ability to commercialize RPL554.ensifentrine. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of RPL554.ensifentrine.
Clinical trials must be conducted in accordance with the laws and regulations of the FDA, EU rules and regulations and other applicable regulatory authorities' legal requirements, regulations or guidelines, and are subject to oversight by these governmental agencies and IRBs at the medical institutions where the clinical trials are conducted. In addition, clinical trials must be conducted with supplies of RPL554ensifentrine produced under current good manufacturing practice, or cGMP, requirements and other regulations. Furthermore, we rely on CROs and clinical trial sites to ensure the proper and timely conduct of our clinical trials and while we have agreements governing their committed activities, we have limited influence over their actual performance. We depend on our collaborators and on medical institutions and CROs to conduct our clinical trials in compliance with good clinical practice, or GCP, requirements. To the extent our collaborators or the CROs fail to enroll participants for our clinical trials, fail to conduct the study to GCP standards or are delayed for a significant time in the execution of

trials, including achieving full enrollment, we may be affected by increased costs, program delays or both. In addition, clinical trials that are conducted in countries outside the EU and the United States may subject us to further delays and expenses as a result of increased shipment costs, additional regulatory requirements and the engagement of non-EU and non-U.S. CROs, as well as expose us to risks associated with clinical investigators who are unknown to the FDA or the EMA, and different standards of diagnosis, screening and medical care.
RPL554Ensifentrine may have serious adverse, undesirable or unacceptable side effects which may delay or prevent marketing approval. If such side effects are identified during the development of RPL554ensifentrine or following approval, if any, we may need to abandon our development of RPL554,ensifentrine, the commercial profile of any approved label may be limited, or we may be subject to other significant negative consequences following marketing approval, if any.
Undesirable side effects that may be caused by RPL554ensifentrine could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA, EMA or other comparable foreign authorities. We have completed patient enrollment in twelve15 Phase 1 and 2 clinical trials of RPL554; ten ofensifentrine.In these have been reported, one is expected to report late in the first quarter of 2018 and the other is expected to report early in the second quarter of 2018. In the trials, which have reported to date, which were all Phase 1 or Phase 2a studies, some patients have experienced mild to moderate adverse reactions, including headache, dizziness, cough, heart palpitation, nausea, dry mouth, throat irritation, paresthesia (tingling) and rash.
To date, thirteen patients have reported in aggregate sixteen serious adverse events (including a suicide); eleven of these serious adverse events were assessed as not related to study drug and five of which were assessed by the investigators as possibly related although relevant mitigating factors were subsequently considered.
Results of our future clinical trials could reveal a high and unacceptable severity and prevalence of adverse side effects. In such an event, our trials could be suspended or terminated and the FDA, EMA or other comparable foreign regulatory authorities could order us to cease further development of or deny approval of RPL554ensifentrine for any or all targeted indications. The drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. Additionally, if RPL554ensifentrine receives marketing approval and we or others later identify undesirable or unacceptable side effects caused by RPL554,ensifentrine, a number of potentially significant negative consequences could result, including:
regulatory authorities may withdraw approvals of such products and require us to take RPL554 off the market;
regulatory authorities may require the addition of labeling statements, specific warnings, a contraindication or field alerts to physicians and pharmacies;
regulatory authorities may require a medication guide outlining the risks of such side effects for distribution to patients, or that we implement a REMS plan to ensure that the benefits of RPL554 outweigh its risks;

regulatory authorities may withdraw approvals of such products and require us to take ensifentrine off the market;
we may be required to change the way RPL554 is administered, conduct additional clinical trials or change the labeling of RPL554;
we may be subject to limitations on how we may promote RPL554;
sales of RPL554 may decrease significantly;
we may be subject to litigation or product liability claims; and
our reputation may suffer.
regulatory authorities may require the addition of labeling statements, specific warnings, a contraindication or field alerts to physicians and pharmacies;
regulatory authorities may require a medication guide outlining the risks of such side effects for distribution to patients, or that we implement a REMS plan to ensure that the benefits of ensifentrine outweigh its risks;
we may be required to change the way ensifentrine is administered, conduct additional clinical trials or change the labeling of ensifentrine;
we may be subject to limitations on how we may promote ensifentrine;
sales of ensifentrine may decrease significantly;
we may be subject to litigation or product liability claims; and
our reputation may suffer.
Any of these events could prevent us or any collaborators from achieving or maintaining market acceptance of RPL554ensifentrine or could substantially increase commercialization costs and expenses, which in turn could delay or prevent us from generating significant revenue from the sale of RPL554.ensifentrine.
We depend on enrollment of patients in our clinical trials for RPL554.ensifentrine. If we are unable to enroll patients in our clinical trials, or enrollment is slower than anticipated, our research and development efforts could be adversely affected.
Successful and timely completion of clinical trials for RPL554ensifentrine will require that we enroll a sufficient number of patient candidates. Trials may be subject to delays as a result of patient enrollment taking longer than anticipated or patient withdrawal. Patient enrollment depends on many factors, including the size and nature of the patient population, eligibility criteria for the trial, the proximity of patients to clinical sites, the design of the clinical protocol, the availability of competing clinical trials, the availability of new drugs approved for the indication the clinical trial is investigating and clinicians'clinicians’ and patients'patients’ perceptions as to the potential advantages of the drug being studied in relation to other available therapies. These factors may make it difficult for us to enroll enough patients to complete our clinical trials in a timely and cost-effective manner. Higher than expected numbers of patients could also discontinue participation in the clinical trials. Delays in the completion of any clinical trial of RPL554ensifentrine will increase our costs, slow down our development and approval of RPL554ensifentrine and delay or potentially jeopardize our ability to commence product sales and generate revenue. In addition, some of

the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of RPL554.ensifentrine.
We may become exposed to costly and damaging liability claims, either when testing RPL554ensifentrine in the clinic or at the commercial stage, and our product liability insurance may not cover all damages from such claims.
We are exposed to potential product liability and professional indemnity risks that are inherent in the research, development, manufacturing, marketing and use of pharmaceutical products. Currently, we have no products that have been approved for commercial sale; however, the current and future use of RPL554ensifentrine by us and any collaborators in clinical trials, and the sale of RPL554,ensifentrine, if approved, in the future, may expose us to liability claims. These claims might be made by patients that use the product, healthcare providers, pharmaceutical companies, our collaborators or others selling RPL554.ensifentrine. Any claims against us, regardless of their merit, could be difficult and costly to defend and could adversely affect the market for RPL554ensifentrine or any prospects for commercialization of RPL554.ensifentrine. In addition, regardless of the merits or eventual outcome, liability claims may result in:
decreased demand for RPL554;
injury to our reputation;
withdrawal of clinical trial participants;
costs to defend related litigation;
diversion of management's time and our resources;
substantial monetary awards to trial participants or patients;
regulatory investigation, product recalls or withdrawals, or labeling, marketing or promotional restrictions;
loss of revenue; and
the inability to commercialize or promote RPL554.

decreased demand for ensifentrine;
injury to our reputation;
withdrawal of clinical trial participants;
costs to defend related litigation;
diversion of management’s time and our resources;
substantial monetary awards to trial participants or patients;
regulatory investigation, product recalls or withdrawals, or labeling, marketing or promotional restrictions;
loss of revenue; and
the inability to commercialize or promote ensifentrine.
Although the clinical trial process is designed to identify and assess potential side effects, it is always possible that a drug, even after regulatory approval, may exhibit unforeseen side effects. If RPL554ensifentrine were to cause adverse side effects during clinical trials or after approval, we may be exposed to substantial liabilities. Physicians and patients may not comply with any warnings that identify known potential adverse effects and patients who should not use RPL554.ensifentrine.
Although we maintain product liability insurance for RPL554,ensifentrine, it is possible that our liabilities could exceed our insurance coverage. We intend to expand our insurance coverage to include the sale of commercial products if we obtain marketing approval for RPL554.ensifentrine. However, we may not be able to maintain insurance coverage at a reasonable cost or obtain insurance coverage that will be adequate to satisfy any liability that may arise. If a successful product liability claim or series of claims is brought against us for uninsured liabilities or in excess of insured liabilities, our assets may not be sufficient to cover such claims and our business operations could be impaired.
The regulatory approval processes of the FDA, the EMA and comparable foreign regulatory authorities are lengthy, time consuming and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for RPL554,ensifentrine, our business will be substantially harmed.
The time required to obtain approval by the FDA, the EMA and comparable foreign regulatory authorities is unpredictable, but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including substantial discretion of the regulatory authorities. In addition, approval policies, regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a product candidate's clinical development and may vary among jurisdictions. We have not obtained regulatory approval for RPL554ensifentrine and it is possible that RPL554ensifentrine or any product candidates we may develop in the future will never obtain regulatory approval.
RPL554Ensifentrine could fail to receive regulatory approval for many reasons, including the following:
we may be unable to demonstrate to the satisfaction of the FDA, the EMA or comparable foreign regulatory authorities that RPL554 is safe and effective, with the required level of statistical significance, for its proposed indication;
we may be unable to demonstrate that RPL554's clinical and other benefits outweigh its safety risks;
the FDA, the EMA or comparable foreign regulatory authorities may disagree with our interpretation of data from pre-clinical studies or clinical trials or may find the data to be unacceptable;
the data collected from clinical trials of RPL554 may, for other reasons, not be sufficient to support the submission of an NDA in the United States, an MMA in the EU, or other comparable submission to obtain regulatory approval in other countries;
the FDA, the EMA or comparable foreign regulatory authorities may fail to approve the manufacturing processes or facilities of third-party manufacturers with which we contract for clinical and commercial supplies;
the approval policies or regulations of the FDA, the EMA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval; and
the FDA, the EMA or comparable foreign regulatory authorities may disagree with the design or implementation of our clinical trials.
we may be unable to demonstrate to the satisfaction of the FDA, the EMA or comparable foreign regulatory authorities that ensifentrine is safe and effective, with the required level of statistical significance, for its proposed indication;
we may be unable to demonstrate that ensifentrine's clinical and other benefits outweigh its safety risks;
the FDA, the EMA or comparable foreign regulatory authorities may disagree with our interpretation of data from pre-clinical studies or clinical trials or may find the data to be unacceptable;
the FDA, the EMA or comparable foreign regulatory authorities may find that the dose or doses evaluated in Phase 3 clinical trials or the way in which double blinding was effected to be unacceptable

the data collected from clinical trials of ensifentrine may, for other reasons, not be sufficient to support the submission of an NDA in the United States, an MMA in the EU, or other comparable submission to obtain regulatory approval in other countries;
the FDA, the EMA or comparable foreign regulatory authorities may fail to approve the manufacturing processes or facilities of third-party manufacturers with which we contract for clinical and commercial supplies;
the approval policies or regulations of the FDA, the EMA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval; and
the FDA, the EMA or comparable foreign regulatory authorities may disagree with the design or implementation of our clinical trials; and
the FDA, the EMA or comparable foreign regulatory authorities may disagree with our proposed product specifications and performance characteristics.
This lengthy approval process as well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval to market RPL554.ensifentrine. The FDA, the EMA and other regulatory authorities have substantial discretion in the approval process, and determining when or whether regulatory approval will be obtained for RPL554.ensifentrine. Even if we believe the data collected from clinical trials of RPL554ensifentrine are promising, such data may not be sufficient to support approval by the FDA, the EMA or any other regulatory authority.
In addition, even if we were to obtain approval for any jurisdiction, regulatory authorities may approve RPL554ensifentrine for fewer or more limited indications than we request, may not approve the price we intend to charge for RPL554,ensifentrine, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve RPL554ensifentrine with a label that does not include the labeling claims necessary or desirable for the successful commercialization of RPL554.ensifentrine. Any of the foregoing scenarios could materially harm the commercial prospects for RPL554.ensifentrine.

Even if RPL554ensifentrine obtains regulatory approval, we will be subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, RPL554,ensifentrine, if approved, could be subject to labeling and other restrictions and market withdrawal and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with RPL554.ensifentrine.
If the FDA, the EMA or a comparable foreign regulatory authority approves RPL554,ensifentrine, the manufacturing processes, labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and record-keepingrecord keeping for RPL554ensifentrine will be subject to extensive and ongoing regulatory requirements. These requirements include payment of annual user fees, submissions of safety and other post-marketing information and reports, facility registration and drug listing, as well as continued compliance with cGMP requirements for the manufacture of RPL554ensifentrine and GCP requirements for any clinical trials that we conduct post-approval, all of which may result in significant expense and limit our ability to commercialize RPL554.ensifentrine. We and our contract manufacturers will also be subject to periodic inspection by the FDA, the EMA and other regulatory authorities to monitor compliance with these requirements and the terms of any product approval we may obtain. In addition, any regulatory approvals that we receive for RPL554ensifentrine may also be subject to limitations on the approved indicated uses for which RPL554ensifentrine may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of RPL554.ensifentrine.
If problems are discovered with athe drug product or the manufacture of RPL554,ensifentrine, or if we or one of our distributors, licensees or co-marketers fails to comply with regulatory requirements, the regulators could take various actions. These include imposing fines on us, imposing restrictions on RPL554ensifentrine or its manufacture and requiring us to recall or remove RPL554ensifentrine from the market. The regulators could also suspend or withdraw our marketing authorizations, or require us to conduct additional clinical trials, change our product labeling or submit additional applications for marketing authorization. If any of these events occurs, our ability to sell RPL554ensifentrine may be impaired, and we may incur substantial additional expense to comply with regulatory requirements.
The policies of the FDA and of other regulatory authorities may change and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action, either in the United States or abroad. For example, certain policies of the Trumpcurrent presidential administration may impact our business and industry. Namely, the Trumpcurrent presidential administration has taken several executive actions, including the issuance of a number of Executive Orders, that could impose significant burdens on, or otherwise materially delay, the FDA’s ability to engage in routine oversight activities such as implementing statutes through rulemaking, issuance of guidance, and review and approval of marketing applications. It is difficult to predict how these orders will be implemented, and the extent to which they will impact the FDA’s ability to exercise its regulatory authority. If these executive actions impose

restrictions on the FDA’s ability to engage in oversight and implementation activities in the normal course, our business may be negatively impacted. In addition, if we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained and we may not achieve or sustain profitability.
We may not be successful in our efforts to develop RPL554ensifentrine for multiple indications, including asthma, CF or other respiratory diseases.
Part of our strategy is to continue to develop RPL554ensifentrine in indications other than COPD, such as CF. Although our research and development efforts to date have suggested that RPL554ensifentrine has the potential to treat CF, we may not be able to develop RPL554ensifentrine in CF or any other disease, or development may not be successful. In addition, the potential use of RPL554ensifentrine in other diseases may not be suitable for clinical development, including as a result of difficulties enrolling patients in any clinical studies we plan to initiate or the potential for harmful side effects or other characteristics that might suggest marketing approval and market acceptance are unlikely. If we do not continue to successfully develop and begin to commercialize RPL554ensifentrine for multiple indications, we will face difficulty in obtaining product revenues in future periods, which could significantly harm our financial position.
Even if we obtain marketing approval of RPL554ensifentrine for any indication in a major pharmaceutical market such as the United States or EU, we may never obtain approval or commercialize RPL554ensifentrine in other major markets, which would limit our ability to realize its full market potential.
In order to market any products in a country or territory, we must establish and comply with numerous and varying regulatory requirements of such countriescountry or territoriesterritory regarding safety and efficacy. Clinical trials conducted in one country may not be accepted by regulatory authorities in other countries, and regulatory approval in one country

does not mean that regulatory approval will be obtained in any other country. Approval procedures vary among countries and can involve additional product testing and validation and additional administrative review periods. Seeking regulatory approvals in all major markets could result in significant delays, difficulties and costs for us and may require additional pre-clinical studies or clinical trials which would be costly and time consuming. Regulatory requirements can vary widely from country to country and could delay or prevent the introduction of RPL554ensifentrine in those countries. Satisfying these and other regulatory requirements is costly, time consuming, uncertain and subject to unanticipated delays. In addition, our failure to obtain regulatory approval in any country may delay or have negative effects on the process for regulatory approval in other countries. We currently do not have any product candidates approved for sale in any jurisdiction, whether in the EU, the United States or any other international markets, and we do not have experience in obtaining regulatory approval in international markets. If we fail to comply with regulatory requirements in international markets or to obtain and maintain required approvals, our target market will be reduced and our ability to realize the full market potential of RPL554ensifentrine will be compromised.
Our employees and independent contractors, including principal investigators, consultants, vendors and collaboration partners may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements.
We are exposed to the risk that our employees and independent contractors, including principal investigators, consultants, vendors and collaboration partners may engage in fraudulent conduct or other illegal activities. Misconduct by these parties could include intentional, reckless or negligent conduct or unauthorized activities that violate: (i) the laws and regulations of the FDA, EU rules and regulationsEMA and other similar regulatory requirements,bodies, including those laws that require the reporting of true, complete and accurate information to such authorities; (ii) manufacturing standards; (iii) federal and state data privacy,security, fraud and abuse and other healthcare laws and regulations in the United States and abroad; or (iv) laws that require the reporting of true, complete and accurate financial information and data. Specifically, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Activities subject to these laws could also involve the improper use or misrepresentation of information obtained in the course of clinical trials, creating fraudulent data in our pre-clinical studies or clinical trials or illegal misappropriation of drug product, which could result in regulatory sanctions and cause serious harm to our reputation. It is not always possible to identify and deter misconduct by employees and other third parties, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply with such laws or regulations. Additionally, we are subject to the risk that a person or government could allege such fraud or other misconduct, even if none occurred. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those

actions could have a significant impact on our business and results of operations, including the imposition of significant civil, criminal and administrative penalties, damages, monetary fines, disgorgements, possible exclusion from participation in Medicare, Medicaid and other U.S. federal healthcare programs or healthcare programs in other jurisdictions, integrity oversight and reporting obligations to resolve allegations of non-compliance, individual imprisonment, other sanctions, contractual damages, reputational harm, diminished profits and future earnings, and curtailment of our operations.

Interim "top-line" and, "top-line," or preliminary data from our clinical trials that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data.
From time to time, we may publish interim "top-line"publicly disclose top-line or preliminary data from our clinical studies.trials, which is based on a preliminary analysis of then-available data, and the results and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. We also make assumptions, estimations, calculations and conclusions as part of our analyses of data, and we may not have received or had the opportunity to fully and carefully evaluate all data. As a result, the top-line or preliminary results that we report may differ from future results of the same studies, or different conclusions or considerations may qualify such results, once additional data have been received and fully evaluated. Top-line or preliminary data also remain subject to audit and verification procedures that may result in the final data being materially different from the top-line or preliminary data we previously published. As a result, top-line and preliminary data should be viewed with caution until the final data are available.
From time to time, we may also disclose interim data from our preclinical studies and clinical trials. Interim data from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. Preliminary or "top-line" data also remain subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. As a result, interim and preliminary data should be viewed with caution until the final data are available. Adverse differences between preliminary or interim data and final data could significantly harm our business prospects. Further, disclosure of interim data by us or by our competitors could result in volatility in the price of our common stock after this offering.
Further, others, including regulatory agencies, may not accept or agree with our assumptions, estimates, calculations, conclusions or analyses or may interpret or weigh the importance of data differently, which could impact the value of the particular program, the approvability or commercialization of the particular product candidate or product and our company in general. In addition, the information we choose to publicly disclose regarding a particular study or clinical trial is based on what is typically extensive information, and you or others may not agree with what we determine is material or otherwise appropriate information to include in our disclosure.
If the interim, top-line or preliminary data that we report differ from actual results, or if others, including regulatory authorities, disagree with the conclusions reached, our ability to obtain approval for, and commercialize, our product candidates may be harmed, which could harm our business, operating results, prospects or financial condition.
The ability of the FDA to review and approve new products can be affected by a variety of factors and can lead to delays or otherwise prevent new products and services from being developed or commercialized in a timely manner, which could negatively impact our business.
The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory, and policy changes. Average review times at the agency have fluctuated in recent years as a result. In addition, government funding of other government agencies that fund research and development activities is subject to the political process, which is inherently fluid and unpredictable.
Disruptions at the FDA and other agencies may also slow the time necessary for new drugs to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. For example, over the last several years, including for 35 days beginning on December 22, 2018, the U.S. government has shut down several times and certain regulatory agencies, such as the FDA, have had to furlough critical FDA employees and stop critical activities. If a prolonged government shutdown occurs, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business.

Risks Related to Healthcare Laws and Other Legal Compliance Matters
Enacted and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize RPL554ensifentrine and may affect the prices we may set.
In the United States, the EU and other foreign jurisdictions, there have been, and we expect there will continue to be, a number of legislative and regulatory changes and proposed changes to the healthcare system that could

affect our future results of operations. In particular, there have been and continue to be a number of initiatives at the United StatesU.S. federal and state levels that seek to reduce healthcare costs and improve the quality of healthcare. For example, in March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively the ACA, was enacted, which substantially changes the way healthcare is financed by both governmental and private insurers. Among the provisions of the ACA, those of greatest importance to the pharmaceutical and biotechnology industries include the following:
an annual, non-deductible fee payable by any entity that manufactures or imports certain branded prescription drugs and biologic agents, which is apportioned among these entities according to their market share in certain government healthcare programs;
a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer's outpatient drugs to be covered under Medicare Part D;
new requirements to report certain financial arrangements with physicians and certain others, including reporting "transfers of value" made or distributed to prescribers and other healthcare providers and reporting investment interests held by physicians and their immediate family members;
an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program to 23.1% and 13.0% of the average manufacturer price for branded and generic drugs, respectively;
a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected;
extension of a manufacturer's Medicaid rebate liability to covered drugs dispensed to individuals who are enrolled in Medicaid managed care organizations;
expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to certain individuals with income at or below 133% of the federal poverty level, thereby potentially increasing a manufacturer's Medicaid rebate liability;
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research;
creation of the Independent Payment Advisory Board, which, once empanelled, will have the authority to recommend certain changes to the Medicare program that could result in reduced payments for prescription drugs and those recommendations could have the effect of law unless overruled by a supermajority vote of Congress; and
establishment of a Center for Medicare Innovation at the Centers for Medicare & Medicaid Services, or CMS, to test innovative payment and service delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending.
an annual, non-deductible fee payable by any entity that manufactures or imports certain branded prescription drugs and biologic agents, which is apportioned among these entities according to their market share in certain government healthcare programs;
a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer's outpatient drugs to be covered under Medicare Part D;
an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program to 23.1% and 13.0% of the average manufacturer price for branded and generic drugs, respectively;
a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected;
extension of a manufacturer's Medicaid rebate liability to covered drugs dispensed to individuals who are enrolled in Medicaid managed care organizations;
expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to certain individuals with income at or below 133% of the federal poverty level, thereby potentially increasing a manufacturer's Medicaid rebate liability;
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research; and
establishment of a Center for Medicare Innovation at the Centers for Medicare & Medicaid Services, or CMS, to test innovative payment and service delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending.
Since its enactment, there have been judicial and Congressional challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the ACA in the future. The current Presidential Administrationpresidential administration and U.S. Congress will likely continue to seek to modify, repeal, or otherwise invalidate all, or certain provisions of, the ACA. Further, on December 14, 2018, a U.S. District Court Judge in the Northern District of Texas ruled that the individual mandate is a critical and inseverable feature of the ACA, and therefore, because it was repealed as part of the 2017 Tax Cuts and Jobs Act, the remaining provisions of the ACA are invalid as well. On December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the district court’s decision that the individual mandate was unconstitutional but remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. It is uncertainunclear how these decisions, subsequent appeals, if any, and other efforts to challenge, repeal or replace the extent to which any such changes may impactACA or our business or financial condition.
In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted. For example, the Budget Control Act of 2011 has, among other things, led to aggregate reductions of Medicare payments to providers of 2% per fiscal year, which, due to subsequent legislative amendments to the statute, will remain in effect through 20252029 unless additional action is taken by Congress. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced Medicare payments to several types of providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. These laws and any laws enacted in the future may result in additional reductions in Medicare and other health care funding, which could have a material adverse effect on our customers and accordingly, our financial operations.

Moreover, payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives. For example, CMS may develop new payment and delivery models, such as bundled payment models. The U.S. Department of Health and Human Services, or HHS, has set a goal of moving 30% of Medicare payments to alternative payment models by 2016 and 50% of Medicare payments into these alternative payment models by the end of 2018. In addition, recently there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. We expect that additional U.S. federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that the U.S. federal government will pay for

healthcare products and services, which could result in reduced demand for RPL554ensifentrine or additional pricing pressures.
Individual states in the United States have also become increasingly active in passing legislation and implementing regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. Legally mandated price controls on payment amounts by third-party payors or other restrictions could harm our business, results of operations, financial condition and prospects. In addition, regional healthcare authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other healthcare programs. This could reduce the ultimate demand for RPL554ensifentrine or put pressure on our product pricing.
In the EU, similar political, economic and regulatory developments may affect our ability to profitably commercialize RPL554,ensifentrine, if approved. In addition to continuing pressure on prices and cost containment measures, legislative developments at the EU or member state level may result in significant additional requirements or obstacles that may increase our operating costs. The delivery of healthcarehealth care in the EU, including the establishment and operation of health services and the pricing and reimbursement of medicines, is almost exclusively a matter for national, rather than EU, law and policy. National governments and health service providers have different priorities and approaches to the delivery of health care and the pricing and reimbursement of products in that context. In general, however, the healthcare budgetary constraints in most EU member states have resulted in restrictions on the pricing and reimbursement of medicines by relevant health service providers. Coupled with ever-increasing EU and national regulatory burdens on those wishing to develop and market products, this could prevent or delay marketing approval of RPL554,ensifentrine, restrict or regulate post-approval activities and affect our ability to commercialize RPL554,ensifentrine, if approved. In international markets, reimbursement and healthcare payment systems vary significantly by country, and many countries have instituted price ceilings on specific products and therapies.
We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative action, either in the United States or abroad. If we or our collaborators are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we or our collaborators are not able to maintain regulatory compliance, RPL554ensifentrine may lose any regulatory approval that may have been obtained and we may not achieve or sustain profitability.
Our business operations and current and future relationships with investigators, health carehealthcare professionals, consultants, third-party payors and customers will be subject to applicable healthcare regulatory laws, which could expose us to penalties.
Our business operations and current and future arrangements with investigators, healthcare professionals, consultants, third-party payors and customers, may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations. These laws may constrain the business or financial arrangements and relationships through which we conduct our operations, including how we research, market, sell and distribute RPL554,ensifentrine, if approved. Such laws include:
the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons or entities from knowingly and willfully soliciting, offering, receiving or providing any remuneration (including any kickback, bribe, or certain rebate), directly or indirectly, overtly or covertly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, lease, order or recommendation of, any good, facility, item or service, for which payment may be made, in whole or in part, under U.S. federal and state healthcare programs such as Medicare and Medicaid. A person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
the U.S. federal false claims and civil monetary penalties laws, including the civil False Claims Act, which, among other things, impose criminal and civil penalties, including through civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons or entities from knowingly and willfully soliciting, offering, receiving or providing any remuneration (including any kickback, bribe, or certain rebate), directly or indirectly, overtly or covertly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, lease, order or recommendation of, any good, facility, item or service, for which payment may be made, in whole or in part, under U.S. federal and state healthcare programs such as Medicare and Medicaid. A person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
the U.S. federal false claims and civil monetary penalties laws, including the civil False Claims Act, which, among other things, impose criminal and civil penalties, including through civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the U.S.

federal government, claims for payment or approval that are false or fraudulent, knowingly making, using or causing to be made or used, a false record or statement material to a false or fraudulent claim, or from knowingly making a false statement to avoid, decrease or conceal an obligation to pay money to the U.S. federal government. In addition, the government may assert that a claim including items and services resulting from a violation of the U.S. federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act;
the U.S. federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and civil liability for, among other things, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, or knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement, in connection with the delivery of, or payment for, healthcare benefits, items or services; similar to the U.S. federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, and its implementing regulations, which also imposes certain obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information without appropriate authorization by covered entities subject to the rule, such as health plans, healthcare clearinghouses and healthcare providers as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health information;
the U.S. federal Food, Drug and Cosmetic Act, or FDCA, which prohibits, among other things, the adulteration or misbranding of drugs, biologics and medical devices;
the U.S. federal legislation commonly referred to as Physician Payments Sunshine Act, enacted as part of the ACA, and its implementing regulations, which requires certain manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children's Health Insurance Program to report annually to the government information related to certain payments and other transfers of value to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors) and teaching hospitals, as well as ownership and investment interests held by the physicians described above and their immediate family members;
analogous state laws and regulations, including: state anti-kickback and false claims laws, which may apply to our business practices, including but not limited to, research, distribution, sales and marketing arrangements and claims involving healthcare items or services reimbursed by any third-party payor, including private insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the U.S. federal government, or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws and regulations that require drug manufacturers to file reports relating to pricing and marketing information, which requires tracking gifts and other remuneration and items of value provided to healthcare professionals and entities; and state laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts; and
European and other foreign law equivalents of each of the laws, including reporting requirements detailing interactions with and payments to healthcare providers.
the U.S. federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and civil liability for, among other things, knowingly and willfully executing, or attempting to

execute, a scheme to defraud any healthcare benefit program, or knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement, in connection with the delivery of, or payment for, healthcare benefits, items or services; similar to the U.S. federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, and its implementing regulations, which also imposes certain obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information without appropriate authorization by covered entities subject to the rule, such as health plans, healthcare clearinghouses and healthcare providers as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health information;
the FDCA, which prohibits, among other things, the adulteration or misbranding of drugs, biologics and medical devices;
the U.S. federal legislation commonly referred to as Physician Payments Sunshine Act, enacted as part of the ACA, and its implementing regulations, which requires certain manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children's Health Insurance Program to report annually to the government information related to certain payments and other transfers of value to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors),certain health care professionals beginning in 2022, and teaching hospitals, as well as ownership and investment interests held by the physicians described above and their immediate family members;
analogous state laws and regulations, including: state anti-kickback and false claims laws, which may apply to our business practices, including but not limited to, research, distribution, sales and marketing arrangements and claims involving healthcare items or services reimbursed by any third-party payor, including private insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the U.S. federal government, or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws and regulations that require drug manufacturers to file reports relating to pricing and marketing information, which requires tracking gifts and other remuneration and items of value provided to healthcare professionals and entities; and state laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts. For example, California recently enacted legislation, the California Consumer Privacy Act, or CCPA, which went into effect January 1, 2020. The CCPA, among other things, creates new data privacy obligations for covered companies and provides new privacy rights to California residents, including the right to opt out of certain disclosures of their information. The CCPA also creates a private right of action with statutory damages for certain data breaches, thereby potentially increasing risks associated with a data breach. Although the law includes limited exceptions, including for “protected health information” maintained by a covered entity or business associate, it may regulate or impact our processing of personal information depending on the context; and
European and other foreign law equivalents of each of the laws, including reporting requirements detailing interactions with and payments to healthcare providers and laws governing the privacy and security of certain protected information, such as Regulation 2016/679, known as the General Data Protection Regulation, or GDPR, which imposes obligations and restrictions on the collection and use of personal data relating to individuals located in the EU (including health data).In addition, the United Kingdom leaving the EU could also lead to further legislative and regulatory changes. It remains unclear how the United Kingdom data protection laws or regulations will develop in the medium to longer term and how data transfer to the United Kingdom from the EU will be regulated, especially following the United Kingdom's departure from the EU on January 31, 2020 without a deal. However, the United Kingdom has transposed the GDPR into domestic law with the Data Protection Act 2018, which remains in force following the United Kingdom's departure from the EU.
Ensuring that our internal operations and future business arrangements with third parties comply with applicable healthcare laws and regulations will involveinvolves substantial costs. It is possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations, agency guidance or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of the laws described above or any other governmental laws and regulations that may apply to us, we may be subject to significant penalties, including civil, criminal and administrative penalties, damages, fines, exclusion from U.S. government funded healthcare programs, such as Medicare and Medicaid,

or similar programs in other countries or jurisdictions, a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these laws, disgorgement, individual imprisonment, contractual damages, reputational harm, diminished profits and the curtailment or restructuring of our operations. If any of the physicians or other providers or entities with whom we expect to do business are found to not be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs and imprisonment, which could affect our ability to operate our business. Further,

defending against any such actions can be costly, time-consuming and may require significant personnel resources. Therefore, even if we are successful in defending against any such actions that may be brought against us, our business may be impaired.
We are subject to governmental regulation and other legal obligations in the EU and European Economic Area, or EEA, related to privacy, data protection and data security. Our actual or perceived failure to comply with such obligations could harm our business.
We are subject to diverse laws and regulations relating to data privacy and security in the EU and eventually in the EEA, including Regulation 2016/679, known as the GDPR. The GDPR applies extra-territorially and implements stringent operational requirements for controllers and processors of personal data. New global privacy rules are being enacted and existing ones are being updated and strengthened. We are likely to be required to expend capital and other resources to ensure ongoing compliance with these laws and regulations.
Complying with these numerous, complex and often changing regulations is expensive and difficult. Failure by us, any partners, our service providers, or our employees or contractors to comply with the GDPR could result in regulatory investigations, enforcement notices and/or fines of up to the higher of €20 million or up to 4% of our total worldwide annual turnover. In addition to the foregoing, a breach of privacy laws or data security laws, particularly those resulting in a significant security incident or breach involving the misappropriation, loss or other unauthorized use or disclosure of sensitive or confidential patient or consumer information, could have a material adverse effect on our business, reputation and financial condition.
As a data controller, we are accountable for any third-party service providers we engage to process personal data on our behalf, including our CROs. We attempt to mitigate the associated risks by performing security assessments and due diligence of our vendors and requiring all such third-party providers with data access to sign agreements, and obligating them to only process data according to our instructions and to take sufficient security measures to protect such data.There is no assurance that these contractual measures and our own privacy and security-related safeguards will protect us from the risks associated with the third-party processing, storage and transmission of such information. Any violation of data or security laws by our third-party processors could have a material adverse effect on our business and result in the fines and penalties outlined above.
Where we transfer personal data out of the EU and EEA, we do so in compliance with the relevant data export requirements from time to time. There is currently ongoing litigation challenging the commonly used transfer mechanism, the EU Commission approved model clauses. In addition, the U.S. Privacy Shield is currently under review by the European Commission. As such, it is uncertain whether the Privacy Shield framework and/or model clauses will be invalidated in the near future. These changes may require us to find alternative bases for the compliant transfer of personal data outside the EEA and we are monitoring developments in this area. Further, the withdrawal of the United Kingdom from the EU has created uncertainty with regard to the status of the United Kingdom as an "adequate country" for the purposes of data transfers outside the EEA. In particular, it is unclear how data transfers to and from the United Kingdom will be regulated. These changes may require us to find alternative bases for the compliant transfer of personal data outside the United Kingdom and we are monitoring developments in this area. Invalidation of any mechanism on which we rely could require operational changes and increased costs and may lead to governmental enforcement actions, litigation, fines and penalties or adverse publicity that could have an adverse effect on our business.
We are also subject to evolving European privacy laws on cookies, and if we commence any EU marketing campaigns, also on e-marketing. The EU is in the process of replacing the e-Privacy Directive (2002/58/EC) with a new set of rules taking the form of a regulation, which will be directly implemented in the laws of each European member state. The draft e-Privacy Regulation imposes strict opt-in marketing rules with limited exceptions for business-to-business communications, alters rules on third-party cookies, web beacons and similar technology and significantly increases fining powers to the greater of €20 million or 4% of total global annual revenue. While the e-Privacy Regulation was originally intended to be adopted on May 25, 2018 (alongside the GDPR), it is still going through the European legislative process and commentators now expect it to be adopted during the second half of 2020 or during 2021 following a transition period.

We are subject to environmental, health and safety laws and regulations, and we may become exposed to liability and substantial expenses in connection with environmental compliance or remediation activities.
Our operations, including our research, development, testing and manufacturing activities, are subject to numerous environmental, health and safety laws and regulations. These laws and regulations govern, among other things, the controlled use, handling, release and disposal of and the maintenance of a registry for, hazardous materials and biological materials, such as chemical solvents, human cells, carcinogenic compounds, mutagenic compounds and compounds that have a toxic effect on reproduction, laboratory procedures and exposure to blood-borne pathogens. If we fail to comply with such laws and regulations, we could be subject to fines or other sanctions.
As with other companies engaged in activities similar to ours, we face a risk of environmental liability inherent in our current and historical activities, including liability relating to releases of or exposure to hazardous or biological materials. Environmental, health and safety laws and regulations are becoming more stringent. We may be required to incur substantial expenses in connection with future environmental compliance or remediation activities, in which case, our production and development efforts may be interrupted or delayed.
We are subject to anti-corruption laws, as well as export control laws, customs laws, sanctions laws and other laws governing our operations. If we fail to comply with these laws, we could be subject to civil or criminal penalties, other remedial measures and legal expenses.
Our operations are subject to anti-corruption laws, including the U.K. Bribery Act 2010, or Bribery Act, the U.S. Foreign Corrupt Practices Act, or FCPA, and other anti-corruption laws that apply in countries where we do business and may do business in the future. The Bribery Act, FCPA and these other laws generally prohibit us, our officers and our employees and intermediaries from bribing, being bribed or making other prohibited payments to government officials or other persons to obtain or retain business or gain some other business advantage. We may in the future operate in jurisdictions that pose a high risk of potential Bribery Act or FCPA violations, and we may participate in collaborations and relationships with third parties whose actions could potentially subject us to liability under the Bribery Act, FCPA or local anti-corruption laws. In addition, we cannot predict the nature, scope or effect of future regulatory requirements to which any of our international operations might be subject or the manner in which existing laws might be administered or interpreted.
We also are subject to other laws and regulations governing any international operations, including regulations administered by the governments of the United Kingdom and the United States, and authorities in the EU, including applicable export control regulations, economic sanctions on countries and persons, customs requirements and currency exchange regulations, or, collectively, the Trade Control laws.
There is no assurance that we will be completely effective in ensuring our compliance with all applicable anti-corruption laws, including the Bribery Act, the FCPA or other legal requirements, including Trade Control laws. If we are not in compliance with the Bribery Act, the FCPA and other anti-corruption laws or Trade Control laws, we may be subject to criminal and civil penalties, disgorgement and other sanctions and remedial measures and legal expenses. Any investigation of any potential violations of the Bribery Act, the FCPA, other anti-corruption laws or Trade Control laws by U.K., U.S. or other authorities, even if it is ultimately determined that we did not violate such laws, could be costly and time-consuming,time consuming, require significant personnel resources and harm our reputation.
We will seek to build and continuously improve our systems of internal controls and to remedy any weaknesses identified. There can be no assurance, however, that the policies and procedures will be followed at all times or effectively detect and prevent violations of the applicable laws by one or more of our employees, consultants, agents or collaborators and, as a result, we could be subject to fines, penalties or prosecution.
Risks Related to Commercialization
We operate in a highly competitive and rapidly changing industry, which may result in others discovering, developing or commercializing competing products before or more successfully than we do.
The biopharmaceutical and pharmaceutical industries are highly competitive and subject to significant and rapid technological change. Our success is highly dependent on our ability to discover, develop and obtain marketing approval for new products on a cost-effective basis and to market them successfully. If RPL554ensifentrine is approved for any indication, we will face intense competition from a variety of businesses, including large, fully integrated

pharmaceutical companies, specialty pharmaceutical companies and biopharmaceutical companies, academic institutions, government agencies and other private and public research institutions in Europe, the United States and other jurisdictions. These organizations may have significantly greater resources than we do and conduct similar research, seek patent protection and establish collaborative arrangements for research, development, manufacturing and marketing of products that may compete with RPL554.ensifentrine.

Given the number of products already on the market to treat COPD and CF, we expect to face intense competition if RPL554ensifentrine is approved for these indications. Companies including Boehringer Ingelheim, GlaxoSmithKline, AstraZeneca, Mylan, Novartis, Vertex and Sunovioncurrently have treatments on the market for COPD, CF and CF,asthma, and we anticipate that new companies will enter these markets in the future. If we successfully develop and commercialize RPL554,ensifentrine, it will compete with existing therapies and new therapies that may become available in the future. The highly competitive nature of, and rapid technological changes in, the biopharmaceutical and pharmaceutical industries could render RPL554ensifentrine obsolete, less competitive or uneconomical. Our competitors may, among other things:
have significantly greater name recognition, financial, manufacturing, marketing, drug development, technical and human resources than we do, and future mergers and acquisitions in the biopharmaceutical and pharmaceutical industries may result in even more resources being concentrated in our competitors;
develop and commercialize products that are safer, more effective, less expensive, more convenient or easier to administer, or have fewer or less severe effects;
obtain quicker regulatory approval;
establish superior proprietary positions covering our products and technologies;
implement more effective approaches to sales and marketing; or
form more advantageous strategic alliances.
have significantly greater name recognition, financial, manufacturing, marketing, drug development, technical and human resources than we do, and future mergers and acquisitions in the biopharmaceutical and pharmaceutical industries may result in even more resources being concentrated in our competitors;
develop and commercialize products that are safer, more effective, less expensive, more convenient or easier to administer, or have fewer or less severe side effects;
obtain quicker regulatory approval;
establish superior proprietary positions covering our products and technologies;
implement more effective approaches to sales and marketing; or
form more advantageous strategic alliances.
Smaller and other early stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These third parties compete with us in recruiting and retaining qualified scientific and management personnel, establishing clinical trial sites and patient registration and competing for other customers, for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs. In addition, ourany collaborators if any,we may have may decide to market and sell products that compete with RPL554.ensifentrine. Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are more effective, have fewer or less severe side effects, are more convenient or are less expensive than RPL554.ensifentrine. Our competitors may also obtain FDA or other regulatory approval for their productsproduct candidates more rapidly than we may obtain approval for ours, which could result in our competitors establishing or strengthening their market position before we are able to enter the market.
We may be unable to obtain orphan drug designation from the FDA or EU for RPL554ensifentrine for the treatment of CF, and even if we do obtain such designations, we may be unable to obtain or maintain the benefits associated with orphan drug designation, including the potential for orphan drug exclusivity.
Under the Orphan Drug Act, the FDA may designate a product as an orphan drug if it is intended to treat a rare disease or condition, defined as one occurring in a patient population of fewer than 200,000 in the United States, or a patient population greater than 200,000 in the United States where there is no reasonable expectation that the cost of developing the drug will be recovered from sales in the United States. In the EU, the EMA's Committee for Orphan Medicinal Products, or COMP, grants orphan drug designation to promote the development of products that are intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating condition affecting not more than five in 10,000 persons in the EU. Additionally, designation is granted for products intended for the diagnosis, prevention or treatment of a life-threatening, seriously debilitating or serious and chronic condition when, without incentives, it is unlikely that sales of the drug in the EU would be sufficient to justify the necessary investment in developing the drug or biological product or where there is no satisfactory method of diagnosis, prevention or treatment, or, if such a method exists, the medicine must be of significant benefit to those affected by the condition.
In the United States, orphan drug designation entitles a party to financial incentives such as opportunities for grant funding toward clinical trial costs, tax credits for qualified clinical testing and application fee waivers. In addition, if a product receives the first FDA approval of that drug for the indication for which it has orphan designation, the product is entitled to orphan drug exclusivity, which means the FDA may not approve any other application to market the same drug for the same indication for a period of seven years, except in limited circumstances, such as

a showing of clinical superiority over the product with orphan exclusivity or where the manufacturer is unable to assure the availability of sufficient quantities of the orphan drug to meet the needs of patients with the rare disease or condition. Under the FDA's regulations, the FDA will deny orphan drug exclusivity to a designated drug upon approval if the FDA has already approved another drug with the same active ingredient for the same indication, unless the drug is demonstrated to be clinically superior to the previously approved drug. In the EU, orphan drug designation entitles a party to financial incentives such as reduction of fees or fee waivers and ten years of market exclusivity following approval. This period may be reduced to six years if the orphan drug designation criteria are no longer met, including where it is shown that the product is sufficiently profitable not to justify maintenance of market exclusivity.

We plan to seek orphan drug designation from the FDA and the EMA for RPL554ensifentrine for the treatment of CF. Even if we are able to obtain orphan designation for RPL554ensifentrine in the United States and/or the EU, we may not be the first to obtain marketing approval for any particular orphan indication due to the uncertainties associated with developing pharmaceutical products, which could prevent us from marketing RPL554ensifentrine if another company is able to obtain orphan drug exclusivity before we do. In addition, exclusive marketing rights in the United States may be unavailable if we seek approval for an indication broader than the orphan-designated indication or may be lost if the FDA later determines that the request for designation was materially defective or if we are unable to assure sufficient quantities of the product to meet the needs of patients with the rare disease or condition following approval. Further, even if we obtain orphan drug exclusivity for RPL554,ensifentrine, that exclusivity may not effectively protect RPL554ensifentrine from competition because different drugs with different active moieties can be approved for the same condition. In addition, the FDA or the EMA can subsequently approve products with the same active moiety for the same condition if the FDA or the EMA concludes that the later drug is clinically superior on the basis of greater safety, greater effectiveness, or a major contribution to patient care. Orphan drug designation neither shortens the development time or regulatory review time of a drug nor gives the drug any advantage in the regulatory review or approval process. In addition, while we intend to seek orphan drug designation for RPL554ensifentrine for the treatment of CF, we may never receive such designation.
There have been legal challenges to aspects of the FDA's regulations and policies concerning the exclusivity provisions of the Orphan Drug Act, and future challenges could lead to changes that affect the protections afforded our products in ways that are difficult to predict. In response to lawsuits against the FDA in 2014 and 2016, Congress included a provision in the Food and Drug Administration Reauthorization Act, or FDARA, enacted in August 2017, that amended the FDCA to require that, as a condition to awarding exclusivity to a designated orphan drug that is the same as a previously approved drug, such drug must demonstrate clinical superiority over the previously approved drug upon approval. In the future, there is the potential for additional legal challenges to the FDA's orphan drug framework, and it is uncertain how new challenges, regulations, or Congressional actions in the orphan drug space might affect our business.
The successful commercialization of RPL554ensifentrine will depend in part on the extent to which governmental authorities and health insurers establish adequate coverage, reimbursement levels and pricing policies.policies for ensifentrine. Failure to obtain or maintain adequate coverage and reimbursement for RPL554,ensifentrine, if approved, could limit our ability to market those productsensifentrine and decrease our ability to generate revenue.
The availability and adequacy of coverage and reimbursement by governmental healthcare programs such as Medicare and Medicaid, private health insurers and other third-party payors are essential for most patients to be able to afford prescription medications such as RPL554,ensifentrine, assuming approval. Our ability to achieve acceptable levels of coverage and reimbursement for products by governmental authorities, private health insurers and other organizations will have an effect on our ability to successfully commercialize RPL554.ensifentrine. Assuming we obtain coverage for RPL554ensifentrine by a third-party payor, the resulting reimbursement payment rates may not be adequate or may require co-payments that patients find unacceptably high. Moreover, for drugs and biologics administered under the supervision of a physician, obtaining coverage and adequate reimbursement may be particularly difficult because of the higher prices often associated with such products. We cannot be sure that coverage and reimbursement in the United States, the EU or elsewhere will be available for RPL554ensifentrine or any product that we may develop, and any reimbursement that may become available may be decreased or eliminated in the future.
Third-party payors increasingly are challenging prices charged for pharmaceutical products and services, and many third-party payors may refuse to provide coverage and reimbursement for particular drugs when an equivalent generic drug or a less expensive therapy is available. It is possible that a third-party payor may consider RPL554ensifentrine as substitutable and only offer to reimburse patients for the less expensive product. Even if we show improved efficacy or improved convenience of administration with RPL554,ensifentrine, pricing of existing drugs may limit the amount we will be able to charge for RPL554.ensifentrine. These payors may deny or revoke the reimbursement status of a given product or establish prices for new or existing marketed products at levels that are too low to enable us to realize an appropriate return on our investment in RPL554.ensifentrine. If reimbursement is not available or is available only at limited

levels, we may not be able to successfully commercialize RPL554,ensifentrine, and may not be able to obtain a satisfactory financial return on RPL554.ensifentrine.
There is significant uncertainty related to the insurance coverage and reimbursement of newly approved products. In the United States, third-party payors, including private and governmental payors, such as the Medicare and Medicaid programs, play an important role in determining the extent to which new drugs and biologics will be covered. The Medicare and Medicaid programs increasingly are used as models for how private payors and other governmental payors develop their coverage and reimbursement policies for drugs and biologics. Some third-party payors may require pre-approval of coverage for new or innovative devices or drug therapies before they will reimburse health carehealthcare providers who use such therapies. It is difficult to predict at this time what third-party payors will decide with respect to the coverage and reimbursement for RPL554.ensifentrine.

Obtaining and maintaining reimbursement status is time-consumingtime consuming and costly. No uniform policy for coverage and reimbursement for products exists among third-party payors in the United States. Therefore, coverage and reimbursement for products can differ significantly from payor to payor. As a result, the coverage determination process is often a time-consuming and costly process that will require us to provide scientific and clinical support for the use of RPL554ensifentrine to each payor separately, with no assurance that coverage and adequate reimbursement will be applied consistently or obtained in the first instance. Furthermore, rules and regulations regarding reimbursement change frequently, in some cases at short notice, and we believe that changes in these rules and regulations are likely.
Outside the United States, international operations are generally subject to extensive governmental price controls and other market regulations, and we believe the increasing emphasis on cost-containment initiatives in Europe and other countries has and will continue to put pressure on the pricing and usage of RPL554.ensifentrine. In many countries, the prices of medical products are subject to varying price control mechanisms as part of national health systems. Other countries allow companies to fix their own prices for medical products, but monitor and control company profits. Additional foreign price controls or other changes in pricing regulation could restrict the amount that we are able to charge for RPL554.ensifentrine. Accordingly, in markets outside the United States, the reimbursement for RPL554ensifentrine may be reduced compared with the United States and may be insufficient to generate commercially reasonable revenue and profits.
Moreover, increasing efforts by governmental and third-party payors in the United States and abroad to cap or reduce healthcare costs may cause such organizations to limit both coverage and the level of reimbursement for newly approved products and, as a result, they may not cover or provide adequate payment for RPL554.ensifentrine. We expect to experience pricing pressures in connection with the sale of RPL554ensifentrine due to the trend toward managed healthcare, the increasing influence of health maintenance organizations and additional legislative changes. The downward pressure on healthcare costs in general, particularly prescription drugs and surgical procedures and other treatments, has become very intense. As a result, increasingly high barriers are being erected to the entry of new products.
RPL554Ensifentrine may not gain market acceptance, in which case our ability to generate product revenues will be compromised.
Even if the FDA, the EMA or any other regulatory authority approves the marketing of RPL554,ensifentrine, whether developed on our own or with a collaborator, physicians, healthcare providers, patients or the medical community may not accept or use RPL554.ensifentrine. If RPL554ensifentrine does not achieve an adequate level of acceptance, we may not generate significant product revenues or any profits from operations. The degree of market acceptance of RPL554ensifentrine will depend on a variety of factors, including:
the timing of market introduction;
the number and clinical profile of competing products;
the clinical indications for which RPL554 is approved;
our ability to provide acceptable evidence of safety and efficacy;
the prevalence and severity of any side effects;
relative convenience, frequency, and ease of administration;
cost-effectiveness;

the timing of market introduction;
marketing and distribution support;
availability of adequate coverage, reimbursement and adequate payment from health maintenance organizations and other insurers, both public and private; and
other potential advantages over alternative treatment methods.
the number and clinical profile of competing products;
the clinical indications for which ensifentrine is approved;
our ability to provide acceptable evidence of safety and efficacy;
the prevalence and severity of any side effects;
relative convenience, frequency, and ease of administration;
cost effectiveness;
marketing and distribution support;
availability of adequate coverage, reimbursement and adequate payment from health maintenance organizations and other insurers, both public and private; and
other potential advantages over alternative treatment methods.
If RPL554ensifentrine fails to gain market acceptance, this will adversely impact on our ability to generate revenues. Even if RPL554ensifentrine achieves market acceptance, the market may prove not to be large enough to allow us to generate significant revenues.

We currently have no marketing, sales or distribution infrastructure. If we are unable to develop sales, marketing and distribution capabilities on our own or through collaborations, we may not be successful in commercializing RPL554.ensifentrine.
We have no marketing, sales or distribution capabilities and we have no experience with marketing, selling or distributing pharmaceutical products. If RPL554ensifentrine is approved, we intend either to establish a sales and marketing organization with technical expertise and supporting distribution capabilities to commercialize RPL554,ensifentrine, or to outsource this function to a third party. Either of these options would be expensive and time-consuming.time consuming. Some or all of these costs may be incurred in advance of any approval of RPL554.ensifentrine. In addition, we may not be able to hire a sales force that is sufficient in size or has adequate expertise in the medical markets that we intend to target. Any failure or delay in the development of our internal sales, marketing and distribution capabilities would adversely impact the commercialization of RPL554.ensifentrine.
To the extent that we enter into collaboration agreements with respect to marketing, sales or distribution, our product revenue may be lower than if we directly marketed or sold RPL554,ensifentrine, if approved. In addition, any revenue we receive will depend in whole or in part upon the efforts of these third-party collaborators, which may not be successful and are generally not within our control. If we are unable to enter into these arrangements on acceptable terms or at all, we may not be able to successfully commercialize RPL554.ensifentrine. If we are not successful in commercializing RPL554,ensifentrine, either on our own or through collaborations with one or more third parties, our future product revenue will suffer and we may incur significant additional losses.
Risks Related to Our Dependence on Third Parties
We rely, and expect to continue to rely, on third parties, including independent clinical investigators and CROs, to conduct our pre-clinical studies and clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize RPL554ensifentrine and our business could be substantially harmed.
We have relied upon and plan to continue to rely upon third parties, including independent clinical investigators and third-party CROs, to conduct our pre-clinical studies and clinical trials and to monitor and manage data for our ongoing pre-clinical and clinical programs. We rely on these parties for execution of our pre-clinical studies and clinical trials, and control only certain aspects of their activities. Nevertheless, we are responsible for ensuring that each of our studies and trials is conducted in accordance with the applicable protocol and legal, regulatory and scientific standards, and our reliance on these third parties does not relieve us of our regulatory responsibilities. We and our third-party contractors and CROs are required to comply with GCP requirements, which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area, or EEA and comparable foreign regulatory authorities for all of our products in clinical development. Regulatory authorities enforce these GCP requirements through periodic inspections of trial sponsors, principal investigators and trial sites. If we fail to exercise adequate oversight over any of our CROs or if we or any of our CROs fail to comply with applicable GCP requirements, the clinical data generated in our clinical trials may be deemed unreliable and the FDA, the EMA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot provide assurance that upon a regulatory inspection of us or our CROs or other third parties performing services in connection with our clinical trials, such regulatory authority will determine that any of our clinical trials complies with GCP regulations. In addition, our clinical trials must be conducted with product produced under applicable cGMP regulations. Our failure to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process.
Further, these investigators and CROs are not our employees and we will not be able to control, other than by contract, the amount of resources, including time, which they devote to RPL554ensifentrine and clinical trials. If independent investigators or CROs fail to devote sufficient resources to the development of RPL554,ensifentrine, or if their performance is substandard, it may delay or compromise the prospects for approval and commercialization of RPL554.ensifentrine. In addition,

the use of third-party service providers requires us to disclose our proprietary information to these parties, which could increase the risk that this information will be misappropriated.
Our existing and future CROs have or may have the right to terminate their agreements with us in the event of an uncured material breach. In addition, some of our CROs have an ability to terminate their respective agreements with us if it can be reasonably demonstrated that the safety of the subjects participating in our clinical trials warrants such termination, if we make a general assignment for the benefit of our creditors or if we are liquidated.
If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs or to do so on commercially reasonable terms. IfSwitching or adding CROs involves additional cost and requires management’s time and focus. In addition, there is a natural transition period when a new CRO commences work. As a result, delays could occur, which could materially impact our ability to meet our desired clinical development timelines. In addition, if our CROs do not successfully carry out their contractual

duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able to obtain regulatory approval for, or successfully commercialize RPL554., ensifentrine. As a result, our results of operations and the commercial prospects for RPL554ensifentrine would be harmed, our costs could increase and our ability to generate revenues could be delayed.
Switching or adding additional CROs involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new CRO commences work. As a result, delays could occur, which could materially impact our ability to meet our desired clinical development timelines.
If we fail to enter into new strategic relationships for RPL554,ensifentrine, our business, research and development and commercialization prospects could be adversely affected.
Our development program for RPL554ensifentrine and the potential commercialization of RPL554ensifentrine will require substantial additional cash to fund expenses. Therefore, we may decide to enter into collaborations with pharmaceutical or biopharmaceutical companies for the development and potential commercialization of RPL554.ensifentrine. For example, we may seek a collaborator for development of aour DPI or pMDIMDI formulation of RPL554ensifentrine for the maintenance treatment of COPD and potentially asthma and other respiratory diseases.
We face significant competition in seeking appropriate collaborators. Collaborations are complex and time-consumingtime consuming to negotiate and document. We may also be restricted under existing and future collaboration agreements from entering into agreements on certain terms with other potential collaborators. We may not be able to negotiate collaborations on acceptable terms, or at all. If that were to occur, we may have to curtail the development of RPL554,ensifentrine, reduce or delay its development program, delay its potential commercialization or reduce the scope of our sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we will not be able to bring RPL554ensifentrine to market and generate product revenue. If we do enter into a collaboration agreement, we could be subject to the following risks, among others:others, any of which could adversely affect our ability to develop and commercialize ensifentrine:
we may not be able to control the amount and timing of resources that the collaborator devotes to the development of RPL554;
the collaborator may experience financial difficulties;
we may be required to relinquish important rights such as marketing, distribution and intellectual property rights;
a collaborator could move forward with a competing product developed either independently or in collaboration with third parties, including our competitors;
business combinations or significant changes in a collaborator's business strategy may adversely affect our willingness to complete our obligations under any arrangement; or
the collaboration may not provide sufficient funds to be profitable for us after we fulfill our payment obligations under our agreement with Vernalis Development Limited, or Vernalis.
we may not be able to control the amount and timing of resources that the collaborator devotes to the development of ensifentrine;
the collaborator may experience financial difficulties;
we may be required to relinquish important rights such as marketing, distribution and intellectual property rights;
a collaborator could move forward with a competing product developed either independently or in collaboration with third parties, including our competitors;
business combinations or significant changes in a collaborator's business strategy may adversely affect our willingness to complete our obligations under any arrangement; or
the collaboration may not provide sufficient funds to be profitable for us after we fulfill our payment liabilities under our agreement with Ligand Pharmaceuticals, Inc., or Ligand, which acquired Vernalis Development Limited, or Vernalis, in October 2018.
We currently rely on third-party manufacturers and suppliers for production of RPL554.the active pharmaceutical ingredient ensifentrine and its derived formulated products. Our dependence on these third parties may impair the advancement of our research and development programs and the development of RPL554.ensifentrine. Moreover, we intend to rely on third parties to produce commercial supplies of RPL554,ensifentrine, if approved, and commercialization could be stopped, delayed or made less profitable if those

third parties fail to obtain approval ofthe necessary approvals from the FDA or comparable regulatory authorities, fail to provide us with sufficient quantities of product in a timely manner or fail to do so at acceptable quality levels or prices or fail to otherwise complete their duties in compliance with their obligations to us or other parties.
We have limited personnel with experience in manufacturing, and we do not own facilities for manufacturing RPL554.ensifentrine and its derived formulated products. Instead, we rely on and expect to continue to rely on third-party contract manufacturing organizations, or CMOs, for the supply of cGMP-grade clinical trial materials and commercial quantities of RPL554,ensifentrine and its derived formulated products, if approved. While we may contract with other CMOs in the future, we currently contract with onlyhave one pharmaceuticals CMO for the manufacture of RPL554ensifentrine drug substance. For RPL554 drug product in our new nebulized suspensionsubstance and one CMO for each formulation we currently have one CMO. Reliance on third-party suppliers for RPL554 may expose us to more risk than if we were to manufacture RPL554 ourselves.of ensifentrine. The facilities used to manufacture RPL554ensifentrine and its derived formulated products must be approved by the FDA pursuant to inspections that will be conducted after we submit an NDA to the FDA, and by comparable foreign regulatory authorities for approvals outside the United States. While we provide sponsor oversight of manufacturing activities, we do not and will not directly control the manufacturing process of, and are or will be essentially dependent on, our CMOs for compliance with cGMP requirements for the manufacture of RPL554.ensifentrine and its derived formulated products. If a CMO cannot successfully manufacture material that conforms to our specifications and the regulatory requirements of the

FDA or a comparable foreign regulatory authority, it will not be able to secure or maintain regulatory approval for the manufacture of ensifentrine and its derived formulated products in its manufacturing facilities. In addition, we have very little direct control over the ability of a CMO to maintain adequate quality control, quality assurance and qualified personnel. If the FDA or a comparable foreign regulatory authority does not approve these facilities for the manufacture of RPL554ensifentrine and its derived formulated products or if it withdraws any such approval in the future, we may need to find alternative manufacturing facilities, which would delay our development program and significantly impact our ability to develop, obtain regulatory approval for or market RPL554,ensifentrine and its derived formulated products, if approved. In addition, any failure to achieve and maintain compliance with these laws, regulations and standards could subject us to the risk that we may have to suspend the manufacturingmanufacture of RPL554ensifentrine and its derived formulated products or that obtained approvals could be revoked. Furthermore, third-party providers may breach existing agreements they have with us because of factors beyond our control. They may also terminate or refuse to renew their agreement because of their own financial difficulties or business priorities, at a time that is costly or otherwise inconvenient for us. If we were unable to find an adequate replacement or another acceptable solution in time, our clinical trials could be delayed or our commercial activities could be harmed. In addition, the fact that we are dependent on our suppliers, CMOs and other third parties for the manufacture, storage and distribution of RPL554ensifentrine and its derived formulated products means that we are subject to the risk that RPL554ensifentrine and its derived formulated products may have manufacturing defects that we have limited ability to prevent, detect or control.
We rely on and will continue to rely on CMOs to purchase from third-party suppliers the materials necessary to produce RPL554 for our clinical trials. There are a limited number of suppliers for raw materials that we may useensifentrine and its derived formulated products and the inhalation and nebulization devices to manufacture RPL554 and there may be a need to assess alternate suppliers to prevent a possible disruption of the manufacture of the materials necessary to produce RPL554 for our clinical trials, and if approved, ultimately for commercial sale. Any disruption in our relationship with our current CMOs could have a material impact on our ability to continue our clinical development of RPL554.deliver ensifentrine. We do not and will not have any control over the process or timing of the acquisition of these raw materialssupplies by any CMO.CMO or its third-party suppliers, or the quality or quantity of such supplies. Moreover, we currently do not have any agreements for the commercial production of these raw materials. Supplies of raw materialsupplies. These supplies could be interrupted from time to time and, if interrupted, we cannot be certain that alternative supplies could be obtained within a reasonable timeframe, at an acceptable cost or quality, or at all. There are a limited number of suppliers for the raw materials that we may use to manufacture ensifentrine and for the inhalation and nebulization devices we use for delivery of ensifentrine, and we will need to assess alternate suppliers to prevent a possible disruption to our clinical trials, and if approved, ultimately to commercial sales. Although we generally do not begin a clinical trial unless we believe we have on hand, or will be able to obtain, a sufficient supply of RPL554ensifentrine to complete the clinical trial, any significant delay in the supply of RPL554,ensifentrine drug products, or the raw material components needed to produce, RPL554,or devices needed to deliver, ensifentrine, for an ongoing clinical trial due to the need to replace our CMOCMOs or atheir third-party suppliersuppliers could considerably delay completion of our clinical trials, product testing and potential regulatory approval of RPL554.ensifentrine. If our CMOCMOs, their third-party supplies, or we are unable to purchase these raw materialssupplies after regulatory approval has been obtained for RPL554,ensifentrine, the commercial launch of RPL554ensifentrine would be delayed or there would be a shortage in supply, which would impair our ability to generate revenues from the sale of RPL554.ensifentrine. In addition, growth in the costs and expenses of raw materialsthese supplies may impair our ability to cost-effectively manufacture RPL554.ensifentrine.
We rely and will continue to rely on CMOs and third-party suppliers to comply with and respect the proprietary rights of others in conducting their contractual obligations for us. If a CMO or third-party suppliers failfails to acquire the proper licenses or otherwise infringeinfringes third-party proprietary rights in the course of providing services to us, we may have to find alternative CMOs or third-party suppliers, or defend against claims of infringement, either of which would significantly impact our ability to develop, obtain regulatory approval for, or market RPL554,ensifentrine and any of its derived formulated products, if approved.
Risks Related to Intellectual Property and Information Technology

We rely on patents and other intellectual property rights to protect RPL554,ensifentrine, the enforcement, defense and maintenance of which may be challenging and costly. Failure to enforce or protect these rights adequately could harm our ability to compete and impair our business.
Our commercial success depends in part on obtaining and maintaining patents and other forms of intellectual property rights for RPL554,ensifentrine, formulations of RPL554,ensifentrine, polymorphs, salts and analogs of RPL554,ensifentrine, methods used to manufacture RPL554,ensifentrine, methods for manufacturing of final drug product for different inhalation devices such as nebulizer, DPI, pMDI,MDI, and the methods for treating patients with respiratory diseases using RPL554ensifentrine alone or in combination with other available products, or on in-licensing such rights. Our RPL554ensifentrine development program relies on the patents and patent applications assigned and know-how licensed from Vernalis Development Limited, or Vernalis.Ligand. The registrations of the assignment of each of these patents and patent applications with the relevant authorities in certain jurisdictions in which the patent and patent applications are registered have been granted, but there is no assurance that any additional registrations will be effected in a timely manner or at all. Failure to protect or to obtain, maintain or extend adequate patent and other intellectual property rights could adversely affect our ability to develop and market RPL554.ensifentrine.

The patent prosecution process is expensive and time-consuming, and we or our licensors, licensees or collaborators may not be able to prepare, file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner or in all jurisdictions. It is also possible that we or our licensors, licensees or collaborators will fail to identify patentable aspects of inventions made in the course of development and commercialization activities before it is too late to obtain patent protection on them. Moreover, depending on the terms of any future in-licenses to which we may become a party, in some circumstances we may not have the right to control the preparation, filing and prosecution of patent applications, or to maintain the patents, covering technology in-licensed from third parties. Therefore, these patents and applications may not be prosecuted and enforced in a manner consistent with the best interests of our business. Further, the issuance, scope, validity, enforceability and commercial value of our and our current or future licensors', licensees' or collaborators' patent rights are highly uncertain. Our and our licensors' pending and future patent applications may not result in patents being issued which protect our technology or products, in whole or in part, or which effectively prevent others from commercializing competitive technologies and products. The patent examination process may require us or our licensors, licensees or collaborators to narrow the scope of the claims of our or our licensors', licensees' or collaborators' pending and future patent applications, which may limit the scope of patent protection that may be obtained. We cannot provide assurance that all of the potentially relevant prior art relating to our patents and patent applications has been found. If such prior art exists, it can invalidate a patent or prevent a patent from issuing from a pending patent application. Even if patents do successfully issue and even if such patents cover our RPL554,ensifentrine, third parties may initiate an opposition, interference, re-examination, post-grant review, inter partes review, nullification or derivation action in court or before patent offices, or similar proceedings challenging the validity, enforceability or scope of such patents, which may result in the patent claims being narrowed or invalidated. Our and our licensors', licensees' or collaborators' patent applications cannot be enforced against third parties practicing the technology claimed in such applications unless and until a patent issues from such applications, and then only to the extent the issued claims cover the technology.
Because patent applications are confidential for a period of time after filing, and some remain so until issued, we cannot be certain that we or our licensors were the first to file any patent application related to RPL554.ensifentrine. Furthermore, if third parties have filed such patent applications on or before March 15, 2013, the date on which the U.S. patent filing system changed from a first-to-invent to a first-to-file standard, an interference proceeding can be initiated by such third parties to determine who was the first to invent any of the subject matter covered by the patent claims of our applications. If third parties have filed such applications after March 15, 2013, a derivation proceeding can be initiated by such third parties to determine whether our invention was derived from theirs. Even where we have a valid and enforceable patent, we may not be able to exclude others from practicing our invention where the other party can show that they used the invention in commerce before our filing date or the other party benefits from a compulsory license.
We may not identify relevant third-party patents or may incorrectly interpret the relevance, scope or expiration of a third-party patent which might adversely affect our ability to develop, manufacture and market RPL554.ensifentrine.
We cannot guarantee that any of our or our licensors' patent searches or analyses, including but not limited to the identification of relevant patents, the scope of patent claims or the expiration of relevant patents, are complete or thorough, nor can we be certain that we have identified each and every third-party patent and pending application in the United States and abroad that is relevant to or necessary for the commercialization of RPL554ensifentrine in any

jurisdiction. For example, U.S. applications filed before November 29, 2000 and certain U.S. applications filed after that date that will not be filed outside the United States remain confidential until patents issue. Patent applications in the United States and elsewhere are published approximately 18 months after the earliest filing for which priority is claimed, with such earliest filing date being commonly referred to as the priority date. Therefore, patent applications covering RPL554ensifentrine could have been filed by others without our knowledge. Additionally, pending patent applications that have been published can, subject to certain limitations, be later amended in a manner that could cover RPL554ensifentrine or the use of RPL554.ensifentrine. The scope of a patent claim is determined by an interpretation of the law, the written disclosure in a patent and the patent's prosecution history. Our interpretation of the relevance or the scope of a patent or a pending application may be incorrect, which may negatively impact our ability to market RPL554.ensifentrine. We may incorrectly determine that RPL554ensifentrine is not covered by a third-party patent or may incorrectly predict whether a third party's pending application will issue with claims of relevant scope. Our determination of the expiration date of any patent in the United States or abroad that we consider relevant may be incorrect, which may negatively impact our ability to develop and market RPL554.ensifentrine. Our failure to identify and correctly interpret relevant patents may negatively impact our ability to develop and market RPL554.ensifentrine.
If we fail to identify and correctly interpret relevant patents, we may be subject to infringement claims. We cannot guarantee that we will be able to successfully settle or otherwise resolve such infringement claims. If we fail in any such dispute, in addition to being forced to pay damages, we may be temporarily or permanently prohibited from commercializing RPL554.ensifentrine. We might, if possible, also be forced to redesign RPL554ensifentrine so that we no

longer infringe the third-party intellectual property rights. Any of these events, even if we were ultimately to prevail, could require us to divert substantial financial and management resources that we would otherwise be able to devote to our business.
We may be involved in lawsuits to protect or enforce patents covering RPL554,ensifentrine, which could be expensive, time-consumingtime consuming and unsuccessful, and issued patents could be found invalid or unenforceable if challenged in court.
To protect our competitive position, we may from time to time need to resort to litigation in order to enforce or defend any patents or other intellectual property rights owned by or licensed to us, or to determine or challenge the scope or validity of patents or other intellectual property rights of third parties. As enforcement of intellectual property rights is difficult, unpredictable, time-consumingtime consuming and expensive, we may fail in enforcing our rights - in which case our competitors may be permitted to use our technology without being required to pay us any license fees. In addition, however, litigation involving our patents carries the risk that one or more of our patents will be held invalid (in whole or in part, on a claim-by-claim basis) or held unenforceable. Such an adverse court ruling could allow third parties to commercialize RPL554,ensifentrine, and then compete directly with us, without payment to us. If we in-license intellectual property rights, our agreements may give our licensors the first right to control claims of third-party infringement, or to defend validity challenges. Therefore, these patents and patent applications may not be enforced or defended in a manner consistent with the best interests of our business.
If we were to initiate legal proceedings against a third party to enforce a patent covering one of our products, the defendant could counterclaim that our patent is invalid or unenforceable. In patent litigation in the United States or in Europe, defendant counterclaims alleging invalidity or unenforceability are commonplace. Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, for example, lack of novelty, obviousness or non-enablement. Grounds for an unenforceability assertion could be an allegation that someone connected with prosecution of the patent withheld relevant information from the U.S. Patent and Trademark Office, or USPTO, or made a misleading statement, during prosecution. The outcome following legal assertions of invalidity and unenforceability during patent litigation is unpredictable. With respect to the validity question, for example, we cannot be certain that there is no invalidating prior art of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion of invalidity or unenforceability, we would lose at least part, and perhaps all, of the patent protection on RPL554.ensifentrine. Patents and other intellectual property rights also will not protect our technology if competitors design around our protected technology without infringing our patents or other intellectual property rights.
Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. There could also be public announcements of the results of hearings, motions or other interim proceedings or developments. If securities analysts, industry commentators or investors perceive these results to be negative, it could have an adverse effect on the price of our ADSs and ordinary shares.

Third parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain and could have a negative impact on the success of our business.
Our commercial success depends, in part, upon our ability, and the ability of our future collaborators, to develop, manufacture, market and sell our product candidates without alleged or actual infringement, misappropriation or other violation of the patents and proprietary rights of third parties. There have been many lawsuits and other proceedings involving patent and other intellectual property rights in the biotechnology and pharmaceutical industries, including patent infringement lawsuits, interferences, oppositions and reexamination proceedings before the U.S. Patent and Trademark Office, or USPTO and corresponding foreign patent offices. The various markets in which we plan to operate are subject to frequent and extensive litigation regarding patents and other intellectual property rights. In addition, many companies in intellectual property-dependent industries, including the biopharmaceutical and pharmaceutical industries, have employed intellectual property litigation as a means to gain an advantage over their competitors. Numerous U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing product candidates.ensifentrine. Some claimants may have substantially greater resources than we do and may be able to sustain the costs of complex intellectual property litigation to a greater degree and for longer periods of time than we could. In addition, patent holding companies that focus solely on extracting royalties and settlements by enforcing patent rights may target us. As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that RPL554ensifentrine may be subject to claims of infringement of the intellectual property rights of third parties.
We may in the future become party to, or be threatened with, adversarial proceedings or litigation regarding intellectual property rights with respect to our currentensifentrine and any future product candidates, including interference or derivation proceedings, post grant review and inter partes review before the USPTO or similar adversarial proceedings or litigation in other jurisdictions. Similarly, we or our licensors or collaborators may initiate such

proceedings or litigation against third parties, for example, to challenge the validity or scope of intellectual property rights controlled by third parties. Third parties may assert infringement claims against us based on existing patents or patents that may be granted in the future, regardless of their merit. There is a risk that third parties may choose to engage in litigation with us to enforce or to otherwise assert their patent rights against us. Even if we believe such claims are without merit, a court of competent jurisdiction could hold that these third-party patents are valid, enforceable and infringed, and the holders of any such patents may be able to block our ability to commercialize such product candidate unless we obtained a license under the applicable patents, or until such patents expire or are finally determined to be invalid or unenforceable. Similarly, if any third-party patents were held by a court of competent jurisdiction to cover aspects of our compositions, formulations, or methods of treatment, prevention or use, the holders of any such patents may be able to block our ability to develop and commercialize the applicable product candidate unless we obtained a license or until such patent expires or is finally determined to be invalid or unenforceable. Such licenses may not be available on reasonable terms, or at all, or may be non-exclusive thereby giving our competitors access to the same technologies licensed to us.
If we fail in any such dispute, we may be forced to pay damages, including the possibility of treble damages in a patent case if a court finds us to have willfully infringed certain intellectual property rights. We or our licensees may be temporarily or permanently prohibited from commercializing RPL554ensifentrine or from selling, incorporating, manufacturing or using our products in the United States and/or other jurisdictions that use the subject intellectual property. We might, if possible, also be forced to redesign RPL554ensifentrine so that we no longer infringe the third-party intellectual property rights, which may result in significant cost or delay to us, or which redesign could be technically infeasible. Any of these events, even if we were ultimately to prevail, could require us to divert substantial financial and management resources that we would otherwise be able to devote to our business.
In addition, if the breadth or strength of protection provided by our or our licensors' or collaborators' patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future product candidates.
We may be subject to claims challenging the inventorship of our patents and other intellectual property.
Although we are not currently experiencing any claims challenging the inventorship of our patents or ownership of our intellectual property, we may in the future be subject to claims that former employees, collaborators or other third parties have an interest in our patents or other intellectual property as an inventor or co-inventor. While it is our policy to require our employees and contractors who may be involved in the conception or development of intellectual property to execute agreements assigning such intellectual property to us, we may be unsuccessful in executing such an agreement with each party who, in fact, conceives or develops intellectual property that we regard as our own. For example, the assignment of intellectual property rights may not be self-executing or the

assignment agreements may be breached, or we may have inventorship disputes arise from conflicting obligations of consultants or others who are involved in developing RPL554.our product candidates. Litigation may be necessary to defend against these and other claims challenging inventorship. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights, such as exclusive ownership of, or right to use, valuable intellectual property. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.
Intellectual property litigation could cause us to spend substantial resources and distract our personnel from their normal responsibilities.
Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses and could distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, wesuch perceptions could have a substantial adverse effect on the price of our ordinary shares or ADSs. Such litigation or proceedings could substantially increase our operating losses and reduce our resources available for development activities. We may not have sufficient financial or other resources to adequately conduct such litigation or proceedings. Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because of their substantially greater financial resources. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have an adverse effect on our ability to compete in the marketplace.

If we fail to comply with our obligations under our existing and any future intellectual property licenses with third parties, we could lose license rights that are important to our business.
We are party to a license agreement with Vernalis,Ligand, under which we in-license certain intellectual property and were assigned certain patents and patent applications related to our business. We may enter into additional license agreements in the future. We expect that any future license agreements would impose various diligence, milestone payment, royalty, insurance and other obligations on us. Any uncured, material breach under these license agreements could result in our loss of rights to practice the patent rights and other intellectual property licensed to us under these agreements, and could compromise our development and commercialization efforts for ensifentrine or any current or future product candidates. Under our agreement with Vernalis,Ligand, we may not abandon any of the assigned patents or allow any of the assigned patents to lapse without consent from Vernalis,Ligand, which is not to be unreasonably delayed or withheld. If we do not obtain such consent in a timely manner or at all and such assigned patent rights lapse or are abandoned, our agreement with VernalisLigand may be terminated in its entirety. For example, if we decide for commercial reasons to let an assigned patent lapse in a country of little commercial importance, but VernalisLigand does not provide consent and such patent rights lapse, we may lose all intellectual property rights covering RPL554ensifentrine in multiple markets. Moreover, our future licensors may own or control intellectual property that has not been licensed to us and, as a result, we may be subject to claims, regardless of their merit, that we are infringing or otherwise violating the licensor's rights.
We may not be successful in maintaining the necessary rights to RPL554ensifentrine or obtaining other intellectual property rights important to our business through acquisitions and in-licenses.
We currently own and have in-licensed rights to intellectual property, including patents, patent applications and know-how, relating to RPL554,ensifentrine, and our success will likely depend on maintaining these rights. Because our programs may require the use of proprietary rights held by third parties, the growth of our business will likely depend in part on our ability to acquire, in-license, maintain or use these proprietary rights. In addition, RPL554ensifentrine may require specific formulations to work effectively and the rights to these formulations may be held by others. We may be unable to acquire or in-license any compositions, methods of use, processes, or other third-party intellectual property rights from third parties that we identify as necessary for RPL554.ensifentrine. The licensing and acquisition of third-party intellectual property rights is a competitive area, and a number of more established companies also are pursuing strategies to license or acquire third-party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us due to their size, cash resources and greater clinical development and commercialization capabilities.
In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us. We may also be unable to license or acquire third-party intellectual property rights on a timely basis, on terms that would allow us to make an appropriate return on our investment, or at all. Even if we are able to obtain a license to intellectual property of interest, we may not be able to secure exclusive rights, in which case others could use the same rights and compete with us. If we are unable to successfully obtain a license to third-party intellectual property

rights necessary for the development of RPL554ensifentrine or a development program on acceptable terms, we may have to abandon development of RPL554ensifentrine or that development program.
If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our competitive position may be adversely affected.
We do not currently own any registered trademarks. We may not be able to obtain trademark protection in territories that we consider of significant importance to us. If we register trademarks, our trademark applications may be rejected during trademark registration proceedings. Although we will be given an opportunity to respond to those rejections, we may be unable to overcome such rejections. In addition, any of our trademarks or trade names, whether registered or unregistered, may be challenged, opposed, infringed, cancelled, circumvented or declared generic or determined to be infringing on other marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name recognition by potential collaborators or customers in our markets of interest. Over the long term, if we are unable to establish name recognition based on our trademarks and trade names, then we may not be able to compete effectively and our business may be adversely affected. If other entities use trademarks similar to ours in different jurisdictions, or have senior rights to ours, it could interfere with our use of our current trademarks throughout the world.
If we do not obtain protection under the Hatch-Waxman Amendments and similar non-U.S. legislation for extending the term of patents covering RPL554ensifentrine and any other product candidates, our ability to compete effectively could be impaired.
Patents have a limited lifespan. In the United States, if all maintenance fees are timely paid, the natural expiration of a patent is generally 20 years from its earliest U.S. non-provisional filing date. The issued patents covering the composition of matter for RPL554ensifentrine expire in 2020, and our other issued patents will expire in 2031, subject to any patent extensions that may be available for such patents. If patents are issued on our

pending patent applications, the resulting patents are projected to expire on dates ranging from 2031 to 2036. Various extensions may be available, but the life of a patent, and the protection it affords, is limited. Even if patents covering RPL554ensifentrine are obtained, once the patent life has expired for a product, we may be open to competition from competitive medications, including generic medications. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.
Depending upon the timing, duration and conditions of the FDA marketing approval of RPL554,ensifentrine, one or more of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Amendments, and similar legislation in the EU. The Hatch-Waxman Amendments permit a patent term extension of up to five years for a patent covering an approved product as compensation for effective patent term lost during product development and the FDA regulatory review process. However, we may not receive an extension if we fail to apply within applicable deadlines, fail to apply prior to expiration of relevant patents or otherwise fail to satisfy applicable requirements. Moreover, the length of the extension could be less than we request. If we are unable to obtain patent term extension or the term of any such extension is less than we request, the period during which we can enforce our patent rights for that product will be shortened and our competitors may obtain approval to market competing products sooner. As a result, our revenue from applicable products could be reduced, possibly materially.
We enjoy only limited geographical protection with respect to certain patents and may face difficulties in certain jurisdictions, which may diminish the value of our intellectual property rights in those jurisdictions.
We generally file our first patent application, or priority filing, at the United Kingdom Intellectual Property Office. International applications under the Patent Cooperation Treaty, or PCT, are usually filed within twelve12 months after the priority filing. Based on the PCT filing, national and regional patent applications may be filed in additional jurisdictions where we believe RPL554a product candidate may be marketed or manufactured. We have so far not filed for patent protection for ensifentrine in all national and regional jurisdictions where such protection may be available. Filing, prosecuting and defending patents covering RPL554 in all countries throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less extensive than those in the United States. In addition, we may decide to abandon national and regional patent applications before grant. The grant proceeding of each national or regional patent is an independent proceeding which may lead to situations in which applications might in some jurisdictions be refused by the relevant patent offices, while granted by others. For example, unlike other countries, China has a heightened requirement for patentability, and specifically requires a detailed description of medical uses of a claimed drug. Furthermore, generic drug manufacturers or other

competitors may challenge the scope, validity or enforceability of our or our licensors' patents, requiring us or our licensors to engage in complex, lengthy and costly litigation or other proceedings. Generic drug manufacturers may develop, seek approval for and launch generic versions of our products. It is also quite common that depending on the country, the scope of patent protection may vary for the same product candidate or technology.
Competitors may use our andor our licensors' or collaborators' technologies in jurisdictions where we have not obtained patent protection to develop their own products and, further, may export otherwise infringing products to territories where we andor our licensors or collaborators have patent protection, but enforcement is not as strong as that in the United States. These products may compete with RPL554,our product candidates, and our and our licensors' or collaborators' patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.
The laws of some jurisdictions do not protect intellectual property rights to the same extent as the laws or rules and regulations in the United States and the EU, and many companies have encountered significant difficulties in protecting and defending such rights in such jurisdictions. The legal systems of certain countries, particularly certain developing countries, do not favor the enforcement of patents, trade secrets and other intellectual property protection, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights generally. Proceedings to enforce our patent rights in foreign jurisdictions, whether or not successful, could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing, and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly, our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license. Furthermore, while we intend to protect our intellectual property rights in our

expected significant markets, we cannot ensure that we will be able to initiate or maintain similar efforts in all jurisdictions in which we may wish to market RPL554.our product candidates. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate, which may have an adverse effect on our ability to successfully commercialize RPL554our product candidates in all of our expected significant foreign markets. If we or our licensors encounter difficulties in protecting, or are otherwise precluded from effectively protecting, the intellectual property rights important for our business in such jurisdictions, the value of these rights may be diminished and we may face additional competition from others in those jurisdictions.
Some countries have compulsory licensing laws under which a patent owner may be compelled to grant licenses to third parties. In addition, some countries limit the enforceability of patents against government agencies or government contractors. In these countries, the patent owner may have limited remedies, which could materially diminish the value of such patent. If we or any of our licensors is forced to grant a license to third parties with respect to any patents relevant to our business, our competitive position may be impaired.
Intellectual property rights do not necessarily address all potential threats to our competitive advantage.
The degree of future protection afforded by our intellectual property rights is uncertain because intellectual property rights have limitations, and may not adequately protect our business, or permit us to maintain our competitive advantage. The following examples are illustrative:
Others may be able to make compounds that are the same as or similar to RPL554 but that are not covered by the claims of the patents that we own or have exclusively licensed.
The patents of third parties may impair our ability to develop or commercialize RPL554.
We or our licensors or any future strategic collaborators might not have been the first to conceive or reduce to practice the inventions covered by the issued patent or pending patent application that we own or have exclusively licensed.
We or our licensors or any future strategic collaborators might not have been the first to file patent applications covering certain of our inventions.
Others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectual property rights.
It is possible that our pending patent applications will not lead to issued patents.
Issued patents that we own or have exclusively licensed may not provide us with any competitive advantage, or may be held invalid or unenforceable, as a result of legal challenges by our competitors.

Others may be able to make compounds that are the same as or similar to our product candidates but that are not covered by the claims of the patents that we own or have exclusively licensed.
Our competitors might conduct research and development activities in countries where we do not have patent rights and then use the information learned from such activities to develop competitive products for sale in our major commercial markets.
Third parties performing manufacturing or testing for us using our products or technologies could use the intellectual property of others without obtaining a proper license.
We may not develop additional technologies that are patentable.
The patents of third parties may impair our ability to develop or commercialize our product candidates.
We or our licensors or any future strategic collaborators might not have been the first to conceive or reduce to practice the inventions covered by the issued patent or pending patent application that we own or have exclusively licensed.
We or our licensors or any future collaborators might not have been the first to file patent applications covering certain of our inventions.
Others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectual property rights.
It is possible that our pending patent applications will not lead to issued patents.
Issued patents that we own or have exclusively licensed may not provide us with any competitive advantage, or may be held invalid or unenforceable, as a result of legal challenges by our competitors.
Our competitors might conduct research and development activities in countries where we do not have patent rights and then use the information learned from such activities to develop competitive products for sale in our major commercial markets.
Third parties performing manufacturing or testing for us using our product candidates or technologies could use the intellectual property of others without obtaining a proper license.
We may not develop additional technologies that are patentable.
Changes in patent laws or patent jurisprudence could diminish the value of patents in general, thereby impairing our ability to protect RPL554ensifentrine or any future product candidates.
As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing patents in the biopharmaceutical industry involve both technological complexity and legal complexity. Therefore, obtaining and enforcing biopharmaceutical patents is costly, time-consumingtime consuming and inherently uncertain. In addition, the America Invents Act, or the AIA, which was passed inon September 16, 2011, resulted in significant changes to the U.S. patent system.
An important change introduced by the AIA is that, as of March 16, 2013, the United States transitioned to a "first-to-file" system for deciding which party should be granted a patent when two or more patent applications are filed by different parties claiming the same invention. A third party that files a patent application in the United States Patent and Trademark Office, or USPTO, after that date but before us could therefore be awarded a patent covering an invention of ours even if we had made the invention before it was made by the third party. This will requirerequires us to be cognizant going forward of the time from invention to filing of a patent application, but circumstances could prevent us from promptly filing patent applications on our inventions.
Among some of the other changes introduced by the AIA are changes that limit where a patentee may file a patent infringement suit and providing opportunities for third parties to challenge any issued patent in the USPTO. This applies to all of our U.S. patents, even those issued before March 16, 2013. Because of a lower evidentiary standard in USPTO proceedings compared to the evidentiary standard in U.S. federal courts necessary to invalidate a patent claim, a third party could potentially provide evidence in a USPTO proceeding sufficient for the USPTO to hold a claim invalid even though the same evidence would be insufficient to invalidate the claim if first presented in a district court action.

Accordingly, a third party may attempt to use the USPTO procedures to invalidate our patent claims that would not have been invalidated if first challenged by the third party as a defendant in a district court action. It is not clear what, if any, impact the AIA will have on the operation of our business. However, the AIA and its implementation could increase the uncertainties and costs surrounding the prosecution of our or our licensors' or collaboration partners' patent applications and the enforcement or defense of our or our licensors' or collaboration partners' issued patents.
Additionally, the U.S. Supreme Court has ruled on several patent cases in recent years either narrowing the scope of patent protection available in certain circumstances or weakening the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events has created uncertainty with respect to the value of patents, once obtained. Depending on decisions by the U.S. Congress, the federal courts and the USPTO, the laws and regulations governing patents could change in unpredictable ways that could weaken our ability to obtain new patents or to enforce our existing patents and patents that we might obtain in the future. Similarly, the complexity and uncertainty of European patent laws has also increased in recent years. In addition, the European patent system is relatively stringent in the type of amendments that are allowed during prosecution. Complying with these laws and regulations could limit our ability to obtain new patents in the future that may be important for our business.
Confidentiality agreements with employees and others may not adequately prevent disclosure of trade secrets and protect other proprietary information.
We consider proprietary trade secrets and confidential know-how and unpatented know-how to be important to our business. We may rely on trade secrets or confidential know-how to protect our technology, especially where patent protection is believed to be of limited value. However, trade secrets and confidential know-how are difficult to maintain as confidential.
To protect this type of information against disclosure or appropriation by competitors, our policy is to require our employees, consultants, contractors and advisors to enter into confidentiality agreements with us. We also seek to

preserve the integrity and confidentiality of our data, trade secrets and know-how by maintaining physical security of our premises and physical and electronic security of our information technology systems. Monitoring unauthorized uses and disclosures is difficult, and we do not know whether the steps we have taken to protect our proprietary technologies will be effective. We cannot guarantee that our trade secrets and other proprietary and confidential information will not be disclosed or that competitors will not otherwise gain access to our trade secrets. However, current or former employees, consultants, contractors and advisers may unintentionally or willfully disclose our confidential information to competitors, and confidentiality agreements may not provide an adequate remedy in the event of unauthorized disclosure of confidential information. Enforcing a claim that a third party obtained illegally and is using trade secrets and/or confidential know-how is expensive, time consuming and unpredictable. The enforceability of confidentiality agreements may vary from jurisdiction to jurisdiction. Furthermore, if a competitor lawfully obtained or independently developed any of our trade secrets, we would have no right to prevent such competitor from using that technology or information to compete with us, which could harm our competitive position. Additionally, if the steps taken to maintain our trade secrets are deemed inadequate, we may have insufficient recourse against third parties for misappropriating the trade secret.
Failure to obtain or maintain trade secrets and confidential know-how trade protection could adversely affect our competitive position. Moreover, our competitors may independently develop substantially equivalent proprietary information and may even apply for patent protection in respect of the same. If successful in obtaining such patent protection, our competitors could limit our use of our trade secrets and/or confidential know-how.
We may be subject to claims by third parties asserting that our employees or we have misappropriated their intellectual property, or claiming ownership of what we regard as our own intellectual property.
Many of our employees, including our senior management, were previously employed at universities or at other biopharmaceutical companies, including our competitors or potential competitors. Some of these employees executed proprietary rights, non-disclosure and non-competition agreements in connection with such previous employment. Although we try to ensure that our employees do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these employees have used or disclosed confidential information or intellectual property, including trade secrets or other proprietary information, of any such employee's former employer. Litigation may be necessary to defend against these claims.
If we fail in prosecuting or defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel or sustain damages. Such intellectual property rights could be awarded to a third party, and we could be required to obtain a license from such third party to commercialize our technology or products. Such a license may not be available on commercially reasonable terms or at all. Even if

we successfully prosecute or defend against such claims, litigation could result in substantial costs and distract management.
Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.
Periodic maintenance and annuity fees on any issued patent are due to be paid to the USPTO and foreign patent agencies in several stages over the lifetime of the patent. The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment and other similar provisions during the patent application process. While an inadvertent lapse can in many cases be cured by payment of a late fee or by other means in accordance with the applicable rules, there are situations in which noncompliance can result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. Non-compliance events that could result in abandonment or lapse of a patent or patent application include failure to respond to official actions within prescribed time limits, non-payment of fees and failure to properly legalize and submit formal documents. If we or our licensors or collaboration partners fail to maintain the patents and patent applications covering RPL554,our product candidates, our competitors might be able to enter the market, which would hurt our competitive position and could impair our ability to successfully commercialize RPL554 in any indication for which it is approved.

product candidate.
Our proprietary information, or that of our manufacturers, suppliers and other parties that we use to conduct our pre-clinical and clinical trials and any future collaborators, may be lost or we may suffer security breaches.


In the ordinary course of our business, we and our manufacturers, suppliers and third parties that we use to conduct our pre-clinical and clinical trials, collect and store sensitive data, including intellectual property, clinical trial data, proprietary business information and personally identifiable information of our clinical trial subjects and employees, in our and third-party data centers and on our and third-party networks. The secure processing, maintenance and transmission of this information is critical to our operations. Despite our security measures, our information technology and infrastructure may be vulnerable to attacks by hackers or breached due to employee error, malfeasance or other disruptions. Although to our knowledge we have not experienced any such material security breach to date, any such breach could compromise our networks and the information stored there could be accessed, publicly disclosed, lost or stolen. Any such access, disclosure or other loss of information could result in legal claims or proceedings, liability under laws that protect the privacy of personal information including the GDPR, regulatory penalties, disrupt our operations, damage our reputation, and cause a loss of confidence in us and our ability to conduct clinical trials, which could adversely affect our reputation and delay our clinical development of RPL554.

our product candidates
.
Our information technology systems, and that of our manufacturers, suppliers and other third parties that we use to conduct our pre-clinical and clinical trials, could experience serious disruptions that could distract our operations and cause delays in our research and development work.

Our information technology and other internal infrastructure systems, including corporate firewalls, servers, leased lines and connection to the Internet, and that of our manufacturers, suppliers and other third parties that we use to conduct our pre-clinical and clinical trials, face the risk of systemic failure that could disrupt our operations. A significant disruption in the availability of these information technology and other internal infrastructure systems could cause interruptions in our collaborations and delays in our research and development work.

Risks Related to Employee Matters and Managing Growth
Our future growth and ability to compete depends on the successful transition of our CEO and CFO roles, retaining our key personnel and recruiting additional qualified personnel.
Our success depends upon the continued contributions of our key management, scientific and technical personnel, many of whom have been instrumental for us and have substantial experience with RPL554ensifentrine and related technologies. TheseOn February 3, 2020 we announced the appointment of David Zaccardelli as chief executive officer with effect from February 1, 2020, following the retirement of Jan-Anders Karlsson, PhD. We also announced the appointment of Mark Hahn as chief financial officer with effect from March 1, 2020, as successor to Piers Morgan. We anticipate that we will experience a transitional period until our new chief executive officer and chief financial officer are fully integrated into their new roles and the transition may not be successful. Moreover, we cannot provide any assurance that the transition in leadership will not result in a disruption that adversely impacts our business and employee morale, or that successful working relationships between our other key management individuals and the new chief executive officer and chief financial officer will be developed.

Our other key management individuals include our chief executive officer, Jan-Anders Karlsson,general counsel, Claire Poll, our chief medical officer, Kenneth Newman, our chief financial officer, Piers Morgan, our legal counsel, Claire Poll,Kathleen Rickard, our senior vice president, chemistry manufacturing and controls, Peter Spargo, our vice president, regulatory affairs, Desiree Luthman, and our commercial director, Richard Hennings.Hennings, and our vice president, R&D operations and global project management, Tara Rheault.
The loss of key managers and senior scientists could delay our research and development activities. In addition, the competition for qualified personnel in the biopharmaceutical and pharmaceutical field is intense, and our future success depends upon our ability to attract, retain and motivate highly skilled scientific, technical and managerial employees. We face competition for personnel from other companies, universities, public and private research institutions and other organizations. If our recruitment and retention efforts are unsuccessful in the future, it may be difficult for us to achieve our product candidate development objectives, raise additional capital and implement our business strategy.
We expect to expand our development, regulatory and sales and marketing capabilities, and as a result, we may encounter difficulties in managing our growth, which could disrupt our operations.
We expect to experience significant growth in the number of our employees and the scope of our operations, particularly in the areas of drug development, regulatory affairs and sales and marketing. To manage our anticipated future growth, we must continue to implement and improve our managerial, operational and financial systems, expand our facilities and continue to recruit and train additional qualified personnel. Due to our limited financial resources and the limited experience of our management team in managing a company with such

anticipated growth, we may not be able to effectively manage the expansion of our operations or recruit and train additional qualified personnel. The expansion of our operations may lead to significant costs and may divert our management and business development resources. Any inability to manage growth could delay the execution of our business plans or disrupt our operations.
Risks Related to Our ADSs and Ordinary Shares
The price of our ADSs and ordinary shares may be volatile and may fluctuate due to factors beyond our control.
The trading market for publicly traded emerging biopharmaceutical and drug discovery and development companies has been highly volatile and is likely to remain highly volatile in the future. The market price of our ADSs and ordinary shares may fluctuate significantly due to a variety of factors, including:
positive or negative results from, or delays in, testing and clinical trials by us, collaborators or competitors;
delays in entering into collaborations and strategic relationships with respect to development or commercialization of RPL554 or entry into collaborations and strategic relationships on terms that are not deemed to be favorable to us;
technological innovations or commercial product introductions by us or competitors;
changes in government regulations;
developments concerning proprietary rights, including patents and litigation matters;
public concern relating to the commercial value or safety of RPL554;
financing or other corporate transactions;
publication of research reports or comments by securities or industry analysts;
general market conditions in the pharmaceutical industry or in the economy as a whole;
the loss of any of our key scientific or senior management personnel;
sales of our ADSs or ordinary shares by us, our senior management and board members, holders of our ADSs or our shareholders in the future; or
other events and factors, many of which are beyond our control.
positive or negative results from, or delays in, clinical trials of ensifentrine;
developments in our competitors’ businesses;
delays in entering into collaborations and strategic relationships with respect to development or commercialization of ensifentrine or entry into collaborations and strategic relationships on terms that are not deemed to be favorable to us;
technological innovations or commercial product introductions by us or competitors;
changes in government regulations;
developments concerning proprietary rights, including patents and litigation matters;
public concern relating to the commercial value or safety of ensifentrine;
financing or other corporate transactions;
publication of research reports or comments by securities or industry analysts or commentators;
general market conditions in the pharmaceutical industry or in the economy as a whole;
the loss of any of our key scientific or senior management personnel;
sales of our ADSs or ordinary shares by us, our senior management or board members, and significant holders of our ADSs or ordinary shares; or
other events and factors, many of which are beyond our control.
These and other market and industry factors may cause the market price and demand for our ADSs and ordinary shares to fluctuate substantially, regardless of our actual operating performance, which may limit or prevent investors from readily selling their ADSs or ordinary shares and may otherwise negatively affect the liquidity of our ADSs and ordinary shares. In addition, the stock market in general, and biopharmaceutical companies in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies. In the past, when the market price of a stock has been volatile, holders of that stock have sometimes instituted securities class action litigation against the issuer. If any of the holders of our ADSs or ordinary shares were to bring such a lawsuit against us, we could incur substantial costs defending the lawsuit and the attention of our senior management would be diverted from the operation of our business. Any adverse determination in litigation could also subject us to significant liabilities.

We will continue to incur increased costs as a result of operating as a public company in the United States, and our senior management are required to devote substantial time to new compliance initiatives and corporate governance practices.
As a U.S. public company, and particularly after we no longer qualify as an emerging growth company, or EGC, we will continue to incur significant legal, accounting and other expenses that we did not incur prior to becoming a U.S. public company. The Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of Nasdaq and other applicable securities rules and regulations impose various requirements on non-U.S. reporting public companies, including the establishment and maintenance of effective disclosure and financial controls and corporate governance practices. Our senior management and other personnel have devoted and will need to continue to devote a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations will continue to increase our legal and financial compliance costs and will make some activities more time-consuming and costly.

These rules and regulations are often subject to varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Section 404, we will beare required to furnish a report by our senior management on our internal control over financial reporting. However, while we remain an emerging growth company, or EGC, we will not be required to include an attestation report on internal control over financial reporting issued by our independent registered public accounting firm. To prepare for eventual compliance with Section 404, once we no longer qualify as an EGC, we will be engaged in a process to document and evaluate our internal control over financial reporting, which is both costly and challenging. In this regard, we will need to continue to dedicate internal resources, potentially engage outside consultants and adopt a detailed work plan to assess and document the adequacy of internal control over financial reporting, continue steps to improve control processes as appropriate, validate through testing that controls are functioning as documented and implement a continuous reporting and improvement process for internal control over financial reporting. Despite our efforts, there is a risk that we will not be able to conclude, within the prescribed time frame or at all, that our internal control over financial reporting is effective as required by Section 404. If we identify one or more material weaknesses, it could result in an adverse reaction in the financial markets due to a loss of confidence in the reliability of our financial statements.
The dual listing of our ordinary shares and our ADSs may adversely affect the liquidity and value of our ordinary shares and ADSs.
Our ADSs are listed on Nasdaq, and our ordinary shares are admitted to trading on AIM. We cannot predict the effect of this dual listing on the value of our ADSs and ordinary shares. However, theThe dual listing of our ADSs and ordinary shares may dilute the liquidity of these securities in one or both markets and may adversely affect the trading market or price for our ADSs or ordinary shares .shares.
Certain of our shareholders, members of our board of directors, and senior management own a majority of our ordinary shares (including ordinary shares represented by ADSs) and as a result, are be able to exercise significant control over us.
As of February 27, 2018,December 31, 2019, our senior management, board of directors and greater than 5% shareholders and their respective affiliates, in the aggregate, owned approximately 61% of our ordinary shares (including ordinary shares represented by ADSs) assuming no exercise of outstanding options or warrants, and approximately 55%67% of our ordinary shares, assuming exercise of all options available for exercise and outstanding warrants. Depending on the level of attendance at our general meetings of shareholders, these shareholders either alone or voting together as a group may be in a position to determine or significantly influence the outcome of decisions taken at any such general meeting. Any shareholder or group of shareholders controlling more than 50% of the share capital present and voting at our general meetings of shareholders may control any shareholder resolution requiring a simple majority, including the appointment of board members, certain decisions relating to our capital structure, and the approval of certain significant corporate transactions and amendments to our Articles of Association.transactions. Among other consequences, this concentration of ownership may have the effect of delaying or preventing a change in control and might therefore negatively affect the market price of our ADSs and ordinary shares.
Future sales, or the possibility of future sales, of a substantial number of our ADSs or ordinary shares could adversely affect the price of our ADSs and ordinary shares.
Future sales of a substantial number of our ADSs, or the perception that such sales will occur, could cause a decline in the market price of our ADSs and ordinary shares. Sales in the United States of our ADSs and ordinary shares held by our directors, officers and affiliated shareholders are subject to restrictions. If these shareholders sell substantial amounts of ordinary shares or ADSs in the public market, or the market perceives

that such sales may occur, the market price of our ADSs or ordinary shares and our ability to raise capital through an issue of equity securities in the future could be adversely affected.
Because we do not anticipate paying any cash dividends on our ADSs or ordinary shares in the foreseeable future, capital appreciation, if any, will be our ADS holdersholders’ and shareholders' sole source of gains and they may never receive a return on their investment.
Under current U.K.English law, a company's accumulated realized profits must exceed its accumulated realized losses (on a non-consolidated basis) before dividends can be paid. Therefore, we must have distributable profits before issuing a dividend. We have not paid dividends in the past on our ordinary shares. We intend to retain earnings, if any, for use in our business and do not anticipate paying any cash dividends in the foreseeable future. As a result,

capital appreciation, if any, on our ADSs or ordinary shares will be our ADS holdersholders’ and shareholders' sole source of gainsgain for the foreseeable future, and they will suffer a loss on their investment if they are unable to sell their ADSs or ordinary shares at or above the price at which they were purchased. Investors seeking cash dividends should not purchase our ADSs or ordinary shares.
Securities traded on AIM may carry a higher risk than securities traded on other exchanges, which may impact the value of our investors' investments.
Our ordinary shares are currently traded on AIM. Investment in equities traded on AIM is sometimes perceived to carry a higher risk than an investment in equities quoted on exchanges with more stringent listing requirements, such as the main market of the London Stock Exchange, New York Stock Exchange or Nasdaq. This is because AIM imposes less stringent corporate governance and ongoing reporting requirements than those other exchanges. In addition, AIM requires only half-yearly, rather than quarterly, financial reporting. The value of our ordinary shares may be influenced by many factors, some of which may be specific to us and some of which may affect AIM-quoted companies generally, including the depth and liquidity of the market, our performance, a large or small volume of trading in our ordinary shares, legislative changes and general economic, political or regulatory conditions, and that the prices may be volatile and subject to extensive fluctuations. Therefore, the market price of our ordinary shares, our ADSs, or of the ordinary shares underlying our ADSs, may not reflect the underlying value of our company.
Holders of our ADSs may not have the same voting rights as the holders of our ordinary shares and may not receive voting materials in time to be able to exercise their right to vote.
Holders of our ADSs are not be able to exercise voting rights attaching to the ordinary shares evidenced by our ADSs on an individual basis. Holders of our ADSs have appointed a depositary as their representative to exercise the voting rights attaching to the ordinary shares represented by their ADSs. Holders of our ADSs may not receive voting materials in time to instruct the depositary to vote, and it is possible that they, or persons who hold their ADSs through brokers, dealers or other third parties, will not have the opportunity to exercise a right to vote. Furthermore, the depositary will not be liable for any failure to carry out any instructions to vote, for the manner in which any vote is cast or for the effect of any such vote. As a result, holders of our ADSsmayADSs may not be able to exercise voting rights and may lack recourse if their ADSs are not voted as requested. In addition, holders of our ADSs will not be able to call a shareholders' meeting.
Holders of our ADSs may not receive distributions on our ordinary shares represented by our ADSs or any value for them if it is illegal or impractical to make them available to them.
The depositary for our ADSs has agreed to pay to holders of our ADSs the cash dividends or other distributions it or the custodian receives on our ordinary shares or other deposited securities after deducting its fees and expenses. Holders of our ADSs will receive these distributions in proportion to the number of our ordinary shares their ADSs represent. However, in accordance with the limitations set forth in the deposit agreement entered into with the depositary, it may be unlawful or impractical to make a distribution available to holders of our ADSs. We have no obligation to take any other action to permit the distribution of our ADSs, ordinary shares, rights or anything else to holders of our ADSs. This means that holders of our ADSs may not receive the distributions we make on our ordinary shares or any value from them if it is unlawful or impractical to make the distributions available to them. These restrictions may have a material adverse effect on the value of our ADSs.
Holders of our ADSs may be subject to limitations on transfer of their ADSs.
ADSs are transferable on the books of the depositary. However, the depositary may close its transfer books at any time or from time to time when it deems expedient in connection with the performance of its duties. In addition, the depositary may refuse to deliver, transfer or register transfers of ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary deems it advisable to do so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or for any other reason in accordance with the terms of the deposit agreement. These limitations on transfer may have a material adverse effect on the value of our ADSs.

The rights of our shareholders may differ from the rights typically offered to shareholders of a U.S. corporation.
We are incorporated under English law. The rights of holders of ordinary shares and, therefore, certain of the rights of holders of ADSs, are governed by English law, including the provisions of the Companies Act 2006, and by our Articles of Association. These rights differ in certain material respects from the rights of shareholders in typical U.S. corporations. See "Description of Share Capital and Articles of Association — Differences in Corporate Law"As a result, investors in our final prospectus filed withordinary shares or ADSs may not have the Securities and Exchange Commission on April 28, 2017 relatingsame protections or rights as they would if they had invested in a U.S. corporation. This may make our ADSs less attractive to such investors, which could harm the value of our Registration

Statement on Form F-1 for a description of the principal differences between the provisions of the Companies Act 2006 applicable to us and, for example, the Delaware General Corporation Law relating to shareholders' rights and protections.ADSs.
Claims of U.S. civil liabilities may not be enforceable against us.
We are incorporated under English law. Substantially all of our assets are located outside the United States. The majority of our senior management and board of directors reside outside the United States. As a result, it may not be possible for investors to effect service of process within the United States upon such persons or to enforce judgments obtained in U.S. courts against them or us, including judgments predicated upon the civil liability provisions of the U.S. federal securities laws.
The United States and the United Kingdom do not currently have a treaty providing for recognition and enforcement of judgments (other than arbitration awards) in civil and commercial matters. Consequently, a final judgment for payment given by a court in the United States, whether or not predicated solely upon U.S. securities laws, would not automatically be recognized or enforceable in the United Kingdom. In addition, uncertainty exists as to whether U.K. courts would entertain original actions brought in the United Kingdom against us or our directors or senior management predicated upon the securities laws of the United States or any state in the United States. Any final and conclusive monetary judgment for a definite sum obtained against us in U.S. courts would be treated by the courts of the United Kingdom as a cause of action in itself and sued upon as a debt at common law so that no retrial of the issues would be necessary, provided that certain requirements are met. Whether these requirements are met in respect of a judgment based upon the civil liability provisions of the U.S. securities laws, including whether the award of monetary damages under such laws would constitute a penalty, is an issue for the court making such decision. If an English court gives judgment for the sum payable under a U.S. judgment, the English judgment will be enforceable by methods generally available for this purpose. These methods generally permit the English court discretion to prescribe the manner of enforcement.
As a result, U.S. investors may not be able to enforce against us or our senior management, board of directors or certain experts named herein who are residents of the United Kingdom or countries other than the United States any judgments obtained in U.S. courts in civil and commercial matters, including judgments under the U.S. federal securities laws.
We qualify as a foreign private issuer and, as a result, we willare not be subject to U.S. proxy rules and are subject to reporting obligations under the Securities Exchange Act of 1934, as amended, or the Exchange Act that, to some extent, are more lenient and less frequent than those of a U.S. domestic public company.
We report under the Exchange Act as a non-U.S. company with foreign private issuer status. Because we qualify as a foreign private issuer, we are exempt from certain provisions of the Exchange Act that are applicable to U.S. domestic public companies, including (i) the sections of the Exchange Act regulating the solicitation of proxies, consents or authorizations in respect of a security registered under the Exchange Act; (ii) the sections of the Exchange Act requiring insiders to file public reports of their stock ownership and trading activities and liability for insiders who profit from trades made in a short period of time; and (iii) the rules under the Exchange Act requiring the filing with the SEC of quarterly reports on Form 10-Q containing unaudited financial and other specified information, or current reports on Form 8-K, upon the occurrence of specified significant events. Although it is not required because we are a foreign private issuer, we furnish quarterly unaudited financial information to the SEC on Form 6-K. In addition, foreign private issuers are not required to file their annual report on Form 20-F until 120 days after the end of each fiscal year, while U.S. domestic issuers that are accelerated filers are required to file their annual report on Form 10-K within 75 days after the end of each fiscal year. Foreign private issuers also are exempt from Regulation Fair Disclosure, aimed at preventing issuers from making selective disclosures of material information. As a result of the above, our investors may not have the same protections afforded to shareholders of companies that are not foreign private issuers.
As a foreign private issuer and as permitted by the listing requirements of Nasdaq, we rely on certain home country governance practices rather than the corporate governance requirements of Nasdaq.
As a foreign private issuer, in accordance with the listing requirements of Nasdaq, we follow our home country governance requirements and certain exemptions thereunder rather than the corporate governance requirements of Nasdaq.

For example, we are exempt from Nasdaq regulations that require a listed U.S. company to:
have a majority of the board of directors consist of independent directors;

have a majority of the board of directors consist of independent directors;
require non-management directors to meet on a regular basis without management present;
promptly disclose any waivers of its code of conduct for directors or executive officers;
have an independent nominating committee and compensation committee;
solicit proxies and provide proxy statements for all shareholder meetings; and
require non-management directors to meet on a regular basis without management present;
promptly disclose any waivers of its code of conduct for directors or executive officers;
have an independent nominating committee and compensation committee;
solicit proxies and provide proxy statements for all shareholder meetings; and
seek shareholder approval for the implementation of certain equity compensation plans and issuances of ordinary shares.
For an overview of our corporate governance principles, see "Description of Share Capital and Articles of Association — Articles of Association" in our final prospectus filed with the Securities and Exchange Commission on April 28, 2017 relating to our Registration Statement on Form F-1.
Our Audit Committee is required to comply with the provisions of Section 301 of the Sarbanes-Oxley Act of 2002 and Rule 10A-3 of the Exchange Act, both of which also are applicable to Nasdaq-listed U.S. companies. Because we are a foreign private issuer, however, our Audit Committee is not subject to additional Nasdaq requirements applicable to listed U.S. companies, including an affirmative determination that all members of the Audit Committee are "independent" using more stringent criteria than those applicable to us as a foreign private issuer.
Because we are exempt from certain Nasdaq governance requirements, our ADS holders may not have the same protections afforded to shareholders of companies that are subject to these Nasdaq requirements.
We may lose our foreign private issuer status, which would then require us to comply with the Exchange Act's domestic reporting regime and cause us to incur significant legal, accounting and other expenses.
As a foreign private issuer, we are not required to comply with all of the periodic disclosure and current reporting requirements of the Exchange Act applicable to U.S. domestic issuers. In order to maintain our current status as a foreign private issuer, either (a) a majority of our ADSs must be either directly or indirectly owned of record by non-residents of the United Statesholders who are not U.S. residents or (b)(i) a majority of our executive officers or directors cannot beare not U.S. citizens or residents, (ii) more than 50 percent of our assets must beare located outside the United States and (iii) our business must beis administered principally outside the United States. Following implementation of the changes in management announced on February 3, 2020 a majority of our executive officers are expected to be U.S. citizens of residents. If we lose our status as a foreign private issuer, we would be required to comply with the Exchange Act reporting and other requirements applicable to U.S. domestic issuers, which are more detailed and extensive than the requirements for foreign private issuers. We may also be required to make changes in our corporate governance practices in accordance with various SEC and Nasdaq rules. The regulatory and compliance costs to us under U.S. securities laws if we are required to comply with the reporting requirements applicable to a U.S. domestic issuer may be significantly higher than the cost we would incur as a foreign private issuer. As a result, we expect that a loss of foreign private issuer status would increase our legal and financial compliance costs and would make some activities highly time consuming and costly. We also expect that if we were required to comply with the rules and regulations applicable to U.S. domestic issuers, it would make it more difficult and expensive for us to obtain director and officer liability insurance, and we may be required to accept reduced coverage or incur substantially higher costs to obtain coverage. These rules and regulations could also make it more difficult for us to attract and retain qualified members of our board of directors.
We are an "emerging growth company," and we cannot be certain if the reduced reporting requirements applicable to "emerging growth companies" will make our ADSs or ordinary shares less attractive to investors.
We are an "emerging growth company," as defined in the JOBS Act. For as long as we continue to be an emerging growth company,EGC, we may take advantage of exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies,EGCs, including not being required to comply with the auditor attestation requirements of Section 404, not being required to present selected financial data for any period prior to the earliest audited period presented in our first registration statement, and exemptions from the requirement of holding a shareholder nonbinding advisory vote on executive compensation and golden parachute payments.payments and from having to disclose the ratio of compensation of our chief executive officer to the median compensation of our employee. We may take advantage of these exemptions until we are no longer an emerging growth company.EGC. We could be an emerging growth companyEGC for up to five years, although circumstances could cause us to lose that status earlier, including if the aggregate market value of our ADSs and ordinary shares held by non-affiliates exceeds $700 million as of any June 30 (the end of our second fiscal quarter) before that time,, in which case we would no longer be an emerging growth company as of the following December 31 (our fiscal year-end). We cannot predict if investors will find our ADSs or ordinary shares less attractive because we may rely on these exemptions. If

some investors find our ADSs or ordinary shares less attractive as a result, there may be a less active trading market for our ADSs or ordinary shares and the price of our ADSs or ordinary shares may be more volatile.

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results or prevent fraud. As a result, shareholders could lose confidence in our financial and other public reporting, which would harm our business and the trading price of our ADSs or ordinary shares.
Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure controls and procedures, are designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their implementation could cause us to fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404, or any subsequent testing by our independent registered public accounting firm, may reveal deficiencies in our internal controls over financial reporting that are deemed to be material weaknesses or that may require prospective or retroactive changes to our financial statements or identify other areas for further attention or improvement. Inadequate internal controls could also cause investors to lose confidence in our reported financial information, which could have a negative effect on the trading price of our ADSs or ordinary shares.
In connection with the preparation for the initial public offering of our ADSs, we reassessed our critical accounting policies to ensure compliance with IFRS.International Financial Reporting Standards. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma in September 2006. We concluded that, for the year ended December 31, 2016, a lack of adequate controls surrounding our historichistorical accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standards established by the U.S. Public Accounting Oversight Board, or PCAOB. The PCAOB defines a material weakness as a deficiency, or a combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of the company's annual or interim financial statements will not be prevented or detected in a timely basis. We have taken steps that we believe addressaddressed the underlying causes of the material weakness by the hiring of oura new chief financial officer, enhancing our financial reporting team's technical accounting knowledge associated with the accounting rules for business combinations, implementing additional internal controls and engaging expert external consultants for additional technical support. However, we cannot be certain that these efforts will be sufficient to prevent future material weaknesses or significant deficiencies from occurring.
Management will be required to assess the effectiveness of our internal controls annually. However, for as long as we are an "emerging growth company" under the JOBS Act,EGC, our independent registered public accounting firm will not be required to attest to the effectiveness of our internal controls over financial reporting pursuant to Section 404. An independent assessment of the effectiveness of our internal controls could detect problems that our management's assessment might not. Undetected material weaknesses in our internal controls could lead to financial statement restatements requiring us to incur the expense of remediation and could also result in an adverse reaction in the financial markets due to a loss of confidence in the reliability of our financial statements.
We may have inadvertently violated Section 13(k) of the Exchange Act (implementing Section 402 of the Sarbanes-Oxley Act of 2002) and may be subject to sanctions as a result.
Section 13(k) of the Exchange Act provides that it is unlawful for a company, such as ours, that has a class of securities registered under Section 12 of the Exchange Act to, directly or indirectly, including through any subsidiary, extend or maintain credit in the form of a personal loan to or for any director or executive officer of the company. In August 2018, a receivable arose with respect to taxes due upon the vesting of restricted share units held by one of our directors and two of our executive officers, which may have violated Section 13(k) of the Exchange Act. The receivable was repaid, with interest, in March 2019, as soon as management became aware of the possible violation. Issuers that are found to have violated Section 13(k) of the Exchange Act may be subject to civil sanctions, including injunctive remedies and monetary penalties, as well as criminal sanctions. The imposition of any of such sanctions on us could have a material adverse effect on our business, financial position, results of operations or cash flows.
If securities or industry analysts or commentators publish inaccurate or unfavorable research, about our business, the price of our ADSs and ordinary shares and our trading volume could decline.
The trading market for our ADSs and ordinary shares depends in part on the research and reports that securities or industry analysts or commentators publish about us or our business. If one or more of the analysts who cover us downgrade our ADSs or ordinary shares or if they or other industry commentators publish inaccurate or unfavorable research or comments about our business, the price of our ADSs and ordinary shares would likely decline. If one or more of these analysts cease coverage of us or fail to publish reports on us regularly, demand for our ADSs or ordinary shares could decrease, which might cause the price of our ADSs and ordinary shares and trading volume to decline.

We believe we will likely be classified as a passive foreign investment company for U.S. federal income tax purposes for the current year ended December 31, 2019, which could result in adverse U.S. federal income tax consequences to U.S. investors in our ordinary shares or ADSs.
Because we dodid not expect to earn revenue from our business operations during the current taxable year ended December 31, 2019, and because our sole source of income currently is interest on bank accounts held by us, we believe we will likely be classified as a "passive foreign investment company," or PFIC, for the current taxable year.year ended December 31, 2019. A non-U.S. company will be considered a PFIC for any taxable year if (i) at least 75% of its gross income is passive income (including interest income), or (ii) at least 50% of the value of its assets (based on an average of the quarterly values of the assets during a taxable year) is attributable to assets that produce or are held for the production of passive income.

If we are classified as a PFIC in any year with respect to which a U.S. Holder (as defined below in "Item 10.E— Taxation")below) owns theour ordinary shares or ADSs, we will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding years during which the U.S. Holder owns theour ordinary shares or ADSs, regardless of whether we continue to meet the PFIC test described above, unless the U.S. Holder makes a specified election once we cease to be a PFIC. If we are classified as a PFIC for any taxable year during which a U.S. Holder holds our ordinary shares or ADSs, certain adverse U.S. federal income tax consequences could apply to such U.S. Holder, including (i) the treatment of all or a portion of any gain on disposition as ordinary income, (ii) the application of a deferred interest charge on such gain and the receipt of certain dividends and (iii) the obligation to comply with certain reporting requirements. A “U.S. Holder” is a holder who, for U.S. federal income tax purposes, is a beneficial owner of our ordinary shares or ADSs who is eligible for the benefits of the income tax treaty between the United Kingdom and the United States and is a citizen or individual resident of the United States, a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States, any state therein or the District of Columbia; or an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source. See "Item 10.E— Taxation—Passive Foreign Investment Company Rules."Item 9.E. Taxation.
If a United States person is treated as owning at least 10% of our ordinary shares or ADSs, such holder may be subject to adverse U.S. federal income tax consequences.
If a U.S. Holder is treated as owning, directly, indirectly or constructively, at least 10% of the value or voting power of our ordinary shares or ADSs, such U.S. Holder may be treated as a “United States shareholder” with respect to each “controlled foreign corporation” in our group, if any. If our group includes one or more U.S. subsidiaries, certain of our non-U.S. subsidiaries could be treated as controlled foreign corporations, regardless of whether we are treated as a controlled foreign corporation. A United States shareholder of a controlled foreign corporation may be required to annually report and include in its U.S. taxable income its pro rata share of “Subpart F income,” “global intangible low-taxed income” and investments in U.S. property by controlled foreign corporations, regardless of whether we make any distributions. An individual that is a United States shareholder with respect to a controlled foreign corporation generally would not be allowed certain tax deductions or foreign tax credits that would be allowed to a United States shareholder that is a U.S. corporation. Failure to comply with these reporting obligations may subject a United States shareholder to significant monetary penalties and may prevent the statute of limitations with respect to such shareholder's U.S. federal income tax return for the year for which reporting was due from starting. We cannot provide any assurances that we will assist our investors in determining whether any of our non-U.S. subsidiaries are treated as a controlled foreign corporation or whether such investor is treated as a United States shareholder with respect to any of such controlled foreign corporations. Further, we cannot provide any assurances that we will furnish to any United States shareholder information that may be necessary to comply with the reporting and tax paying obligations described in this risk factor. U.S. HoldersUnited States shareholders should consult their tax advisors regarding the potential application of these rules to their investment in our ordinary shares or ADSs.

ITEM 4 INFORMATION ON THE COMPANY

A. History and Development of the Company.
We were incorporated in February 2005 under the laws of England and Wales with the Registrar of Companies of England and Wales under the name Isis Resources plc. In September 2006, we acquired Rhinopharma Limited, a private company incorporated in Canada, and changed our name to Verona Pharma plc. Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, and our telephone number is +(44) 203 283 4200. The principal legislation under which we operate is the Companies Act 2006.
Our agent for service of process in the United States is Cogency Global Inc., whose address is 10 E. 40th Street, 10th floor, New York, New York 10016.
Our principal capital expenditures for the year ended December 31, 2019 were £0.3 million (2018: £0.3 million, 2017: £0.2 million). These capital expenditures primarily consisted of patent costs. We expect our expenditure on patent costs to increase in the near term as we continue to advance our research and development programs for ensifentrine and grow our operations. We anticipate our capital expenditure in 2020 to be financed from our current cash and short term investments resources.For more information on our capital expenditures, see Item 5.B. Liquidity and Capital Resources — Operating and Capital Expenditure Requirements, Item 4.D. Property, Plant and Equipment, and Note 21 of our Annual Consolidated Financial Statements included elsewhere in this Annual Report.
The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers, such as we, that file electronically, with the SEC at www.sec.gov. Our website address is www.veronapharma.com.www.veronapharma.com. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included our website address in this Annual Report solely as an inactive textual reference.
Our agent for service of process in the United States is Cogency Global Inc. National Corporate Research, Ltd. was acquired by Cogency., whose address is 10 E. 40th Street, 10th floor, New York, New York 10016.
In February 2017, we effected a 50-for-one share consolidation in which we consolidated every 50 of our existing ordinary shares, nominal value £0.001 per share, in our issued share capital into one ordinary share, nominal value £0.05 per share. In May 2017, we completed the initial public offering of our American Depositary Shares ("ADSs") in the United States as well as a private placement of our ordinary shares in Europe. Our ADSs were listed on The Nasdaq Global Market under the symbol “VRNA.”
Our principal capital expenditures for the year ended December 31, 2017 were £0.2 million. These capital expenditures primarily consisted of patent costs. We expect our expenditure on patent costs to increase in the near term as we continue to advance our research and development programs for RPL554 and grow our operations. .

We anticipate our capital expenditure in 2018 to be financed from the proceeds of our initial public offering of ADSs and private placement of ordinary shares.For more information on our capital expenditures, see the section of this Annual Report titled “Item 5.B. Liquidity and Capital Resources-Capital Expenditures.”

B.BUSINESSB. BUSINESS OVERVIEW
We are a clinical-stage biopharmaceutical company focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.need. Our product candidate, RPL554,ensifentrine (RPL554) is aan investigational, potential first-in-class, inhaled, dual inhibitor of the enzymes phosphodiesterase 3 and 4, or PDE3 and PDE4, that actsis designed to act as both a bronchodilator and an anti-inflammatory agent in a single compound.agent. We are not aware of anytherapy in a other single compound in clinical development or approved by the U.S. Food and Drug Administration, or FDA, ornor the European Medicines Agency, or EMA, for the treatment of respiratory diseases that acts as both a bronchodilator and anti-inflammatory agent. We believe RPL554ensifentrine has the potential to be the first novel class of bronchodilator in over 40 years. We haveA nebulized formulation of ensifentrine has currently completed patient enrollmentPhase 2 clinical development for the treatment of chronic obstructive pulmonary disease, or COPD, and we are preparing to meet with the FDA to discuss plans for Phase 3 clinical trials, which we expect to commence in twelvethe third quarter of 2020, subject to FDA feedback and to funding.
Successful Phase 1 and 2 clinical trials for RPL554 with over 700 subjects enrolled; ten of these studies have been completed with nebulized ensifentrine in healthy volunteers and in patients with cystic fibrosis, or CF, chronic asthma and allergic rhinitis, in addition to COPD. A Phase 2 study in COPD with ensifentrine formulated in a dry powder inhaler, or DPI, has been completed, with positive clinical results reported onein August 2019. A Phase 2 study in COPD with ensifentrine formulated in a pressurized metered dose inhaler, or MDI, is ongoing with clinical results expected to report late in the first quarter of 2018 and one study is expected to report early in the second quarterhalf of 2018.2020. We intend to develop ensifentrine as a nebulized therapy for the treatment of COPD.
For the past 40 years, the treatment of COPD has been dominated by three classes of inhaled therapies approved for use by the FDA or EMA: antimuscarinic agents and beta2-agonists, both available as either short-acting or long-acting bronchodilators, and inhaled corticosteroids, or ICS, known for their anti-inflammatory effects. However, despite existing treatment with one or multiple combinations of these therapies, and owing to the progressive and incurable nature of COPD, many COPD patients on maximum inhaled therapy still experience significant lung function impairment and symptoms for which limited further approved treatment options are available. One such treatment is an oral formulation of a PDE4 inhibitor (roflumilast) with anti-inflammatory properties, although frequency of adverse events has limited its use in COPD patients. Clinicians have expressed desire to use this oral PDE4 inhibitor in more patients were it not for the adverse events. We believe this suggests that ensifentrine has potential to become an important treatment for COPD and other respiratory diseases if our late-stage clinical program demonstrates favorable efficacy, safety and tolerability results for the compound.
Despite treatment with currently approved therapies, many patients with COPD experience daily symptoms impairing their quality of life. Airway obstruction and air trapping due to narrow air passages are major causes of debilitating breathlessness (dyspnea) reducing the patient's physical ability and causing anxiety and depression.

Of the patients treated with dual bronchodilator (long-acting antimuscarinic agents, or LAMA/long-acting beta2 agonists, or LABA) and triple therapy (LAMA/LABA/ICS), research suggests that up to 40% (approximately 1.2 millionpatients in the United States alone) are uncontrolled, remaining symptomatic and at an increased risk of exacerbations. Existing anti-inflammatory therapies used in COPD, namely ICS and the oral PDE4 inhibitor, roflumilast, have been shown to be effective in only subsets of COPD patients. Furthermore, significant side effects and adverse events such as pneumonia are associated with inhaled or systemic corticosteroid use, and significant gastrointestinal side effects are associated with roflumilast, which can limit compliance. Thus we believe there is a need for alternative anti-inflammatory therapies.
Ensifentrine is an investigational, potential first-in-class, inhaled, dual inhibitor of phosphodiesterase, or PDE, enzymes PDE3 and PDE4. PDEs are well known and validated therapeutic targets, and many PDE inhibitors, with different specificities, are currently available in the market for a range of indications. PDE3 is present in airways and the lung, and inhibition of this enzyme is primarily responsible for the bronchodilatory action of ensifentrine. PDE4 is predominantly found in inflammatory and epithelial cells, and inhibition of this enzyme contributes to ensifentrine's anti-inflammatory design. PDEs metabolize the critical signaling molecules, cyclic adenosine monophosphate, or cAMP, and cyclic guanosine monophosphate, or cGMP. By inhibiting PDE3 and PDE4, ensifentrine is designed to increase the levels of cAMP and cGMP, resulting in bronchodilator and anti-inflammatory effects. Ensifentrine is also designed to stimulate the cystic fibrosis transmembrane conductance regulator, or CFTR, which is an ion channel in the epithelial cells lining the airways. Mutations in the CFTR protein result in poorly or non-functioning ion channels, which cause CF and are potentially important in COPD. CFTR stimulation leads to improved electrolyte balance in the lung and thinning of the mucus, which facilitates mucociliary clearance and leads to improved lung function and potentially a reduction in lung infections. Dual inhibition of PDE3 and PDE4 has been observed to be more effective than inhibition of either PDE alone at relaxing airway smooth muscle cells and suppressing the activation and functions of pro-inflammatory cells residing in the lung, both of which are commonly understood to play a significant role in COPD and CF. Ensifentrine is designed to target multiple aspects of respiratory diseases such as COPD and CF through its combined bronchodilatory, anti-inflammatory and mucociliary clearance mechanisms.
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COPD patients are commonly treated with bronchodilators, which seek to relieve airway constriction and make it easier to breathe, and ICS, which seek to reduce lung inflammation. For patients with more severe disease who experience recurrent exacerbations, and for whom ICS are not effective, an oral formulation of a PDE4 inhibitor, which is an anti-inflammatory agent, may also be used. Despite these therapies, many COPD patients continue to suffer exacerbations and respiratory symptoms, which limit their daily activities. Furthermore, current therapies have not demonstrated an ability to change the progressive decline in lung function or reduce the mortality associated with COPD. We believe there is an urgent and unmet medical need for new and more effective treatments for COPD to reduce the number and burden of symptoms, reduce exacerbations and establish a consistent and durable treatment response.
Based on our pre-clinical studies, we believe that ensifentrine also has the potential to reduce the deleterious inflammation in CF patients, which seems to be largely driven by neutrophils, to reduce airway obstruction

through bronchodilation and to enhance mucociliary clearance through stimulation of the CFTR on airway epithelial cells. We believe the bronchodilator and anti-inflammatory properties of ensifentrine, combined with its ability to decrease mucus viscosity thereby improving mucociliary clearance, suggest that inhibition of PDE3 and PDE4 is an attractive therapeutic strategy to treat CF.
Furthermore, ensifentrine may be a suitable treatment for patients with asthma. Asthma is also an inflammatory disease of the airways and causes symptoms such as shortness of breath and cough that vary over time in their frequency and intensity. These symptoms are associated with patients having difficulty breathing due to reversible airway obstruction, airway wall thickening, and mucus production. Asthma attacks can be triggered by a number of factors including allergens, infections, stress and certain drugs. Such exacerbations may occur even if patients are taking their medications, especially in those with more severe disease. We believe ensifentrine’s bronchodilator and anti-inflammatory properties may be useful also in patients with asthma.
We have completed fifteen Phase 1 and Phase 2 clinical trials with ensifentrine, which have enrolled over 1,300 subjects with COPD, asthma, cystic fibrosis, or allergic rhinitis or healthy volunteers. In our clinical trials, treatment with RPL554ensifentrine has been repeatedly observed to result in statistically significant improvements in lung function as compared to placebo.placebo, whether dosed alone or in combination with commonly used short- and long-acting classes of bronchodilators, with or without ICS. Statistically significant means that there is a low statistical probability, typically less than 5%, that the observed results in a study or a trial occurred by chance alone. Our
In two Phase 2b clinical trials of nebulized ensifentrine as a maintenance treatment for COPD, patients with moderate-to-severe COPD treated with ensifentrine showed clinically meaningful and statistically significant improvements in reported COPD symptom scores. In addition, our clinical trials have also have shown clinically meaningful and statistically significant improvements in certain measures of lung function following combined treatment with ensifentrine as add-on to other approved bronchodilators; COPD patients experienced a marked reduction in residual lung volume, which is believed to be related to one of the most debilitating symptoms, breathlessness. The rapid onset of action observed when RPL554 is added toadding ensifentrine on top of tiotropium, a commonly used short-LAMA, was also notable, and long-acting bronchodilators as comparedmay be particularly helpful to eitherthose patients suffering from morning breathlessness. We believe that the clinical effects observed with ensifentrine are driven by its bronchodilator, administered as a single agent. RPL554 alsoanti-inflammatory and mucociliary clearance mechanisms.
Ensifentrine has shown anti-inflammatory effects and been observed to be well tolerated in our clinical trials to date and has not been observed to result in the gastrointestinal or other side effects commonly associated with roflumilast (branded as Daxas®/Daliresp®), the only PDE4 inhibitor currently on the market for the treatment of COPD.
We believe ensifentrine, having shown improvement in forced expiratory volume in one second, or FEV1 (a measure of lung function), and symptoms (which commonly are developing RPL554a precursor to exacerbations) in clinical trials, may be an attractive additional treatment for COPD patients, if successfully developed and approved. In the United States, approximately three million COPD patients are treated with single bronchodilator (either a LAMA or LABA) therapy. In our clinical trials, ensifentrine has been observed to improve lung function, measured by FEV1, and residual volume, when used in addition to existing approved bronchodilators. As a result, we believe it has potential to meet the need for a safe and effective dual bronchodilator/anti-inflammatory treatment regimen as an add-on to other therapies, for example, a LAMA. Furthermore, in the United States, approximately another three million COPD patients are treated with dual bronchodilator therapy (LAMA/LABA) with or without ICS.
In January 2020, we reported top-line results from our 4 week 416-patient Phase 2b dose-ranging clinical trial. This trial evaluated four doses of nebulized ensifentrine (0.375 mg, 0.75 mg, 1.5 mg and 3.0 mg) or placebo as an add-on treatment to tiotropium (Spiriva® Respimat®), a commonly used LAMA bronchodilator, in symptomatic patients with chronic obstructive pulmonary disease, ormoderate-to-severe COPD who required additional treatment. The trial met its primary endpoint of improved lung function, with ensifentrine plus tiotropium producing a clinically and for the treatmentstatistically significant dose-dependent improvement in FEV1 at week 4, compared to placebo plus tiotropium. Additionally, clinically meaningful improvements in health-related quality of patientslife (mean SGRQ-C) were observed on top of tiotropium. Ensifentrine was well tolerated at all doses with cystic fibrosis, or CF.an adverse event profile similar to placebo. We believe RPL554,that these data support dose selection for our planned Phase 3 program, which we anticipate initiating in the third quarter of 2020, subject to FDA feedback and funding.
In January 2019, we announced results from our exploratory pharmacological Phase 2 clinical trial evaluating nebulized ensifentrine administered twice daily on top of treatment with tiotropium and olodaterol. Although we did not meet the primary endpoint, treatment with ensifentrine showed statistically significant improvements in FEV1, including when measured over 24 hours, and after the second dose in the evening. We believe this suggests that ensifentrine could be an effective addition to dual bronchodilator therapy, in particular during the second half of the day following treatment, when patients may derive less benefit from their LAMA/LABA dual bronchodilator therapy.

Verona has completed a pilot Phase 2 study in CF patients , the results of which support the continued development of ensifentrine as a possible new treatment for CF patients. We believe ensifentrine, if approved, has the potential to become an important anda novel treatment and standard of careoption for these patients. We may also explore, alone or with a collaborator, the development of RPL554ensifentrine to treat asthma and other respiratory diseases.
We believe there is a need for nebulized therapies for COPD, as well as more convenient handheld inhalers such as a DPI or a pressurized metered-dose inhaler, or MDI. Initially, we are developing RPL554ensifentrine in a nebulized formulation for the maintenance treatment of COPD patients. We also are developing RPL554 in a nebulized formulation as an add-on therapy to short-acting bronchodilators and other commonly used therapies for the treatment of hospitalized patients with acute exacerbations of COPD. Patients with moremoderate to severe COPD, who tend to suffer more frequent symptoms and exacerbations, generallymay prefer treatment with a nebulizer as they view its perceived benefits, including greater confidence in effective drug administration and a reduced need to visit health care providers, as outweighing its perceived disadvantages, which include length of treatment administration (which may take approximately 5 minutes) and required nebulizer device cleaning. In addition,Furthermore, nebulizers may be more appropriate for certain groups of patients who may struggle to use of a nebulizer is generally preferred when administering larger doses in the hospital setting. an inhaler effectively.
We also are developing our nebulized formulation of RPL554 for CF.
We also are developing RPL554ensifentrine in both dry powder inhaler, or DPI and metered dose inhaler, or pMDI,MDI formulations for the maintenance treatment of COPD. In August 2019 we announced positive results from a Phase 2, two-part clinical trial evaluating a DPI formulation of ensifentrine in COPD patients. The trial showed clinically and statistically significant improvements in FEV1 following one week of treatment, compared to placebo, with a dose-dependent improvement over the dose range of 0.15 mg, 500 mg, 1500 mg and 3 mg ensifentrine. Handheld DPI and pMDIMDI devices are the most common forms of drug delivery in non-hospitalized COPD patients, with COPD and are well suited for maintenance therapy. About 5.5 million COPD patients in the United States are believed to use such devices. We believe the development of DPI and pMDIMDI formulations has the potential to significantlysubstantially increase the market opportunity for RPL554,ensifentrine, if approved, for the maintenance treatment of COPD. In addition, we may explore the development of RPL554ensifentrine in theseDPI and MDI formulations for the treatment of asthma and other respiratory diseases.

DEVELOPMENT OF ENSIFENTRINE
To evaluate RPL554Clinical development of ensifentrine in COPD
We have completed six studies with a nebulized suspension formulation for the maintenance treatment of COPD, we commencedensifentrine and one study with a four-week Phase 2b dose-ranging clinical trialDPI formulation of ensifentrine in July 2017, which is evaluating RPL554 as a single agent as compared to placebo in approximately 400 patients with moderate to severe COPD (trial RPL554-CO-203).moderate-to-severe COPD. A Phase 2 study with our MDI formulation of ensifentrine is ongoing. We have now completed dosing in this study and expect to report top-lineanticipate reporting data from the single-dose portion of this trial (Part A) early in the second quarter of 2018. Depending on2020, and reporting results from the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessmentsecond portion of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical trials. The previously planned 12-week Phase 2b dose-ranging clinicalthe trial may therefore be shortened or deemed unnecessary. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for(Part B), which evaluates multiple doses of the maintenance treatmentMDI formulation of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term, over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD in hospitalized patients and as a treatment for CF patients.
We also plan to evaluate RPL554 in a nebulized formulation as an add-on therapy to two commonly used bronchodilators administered together, in up to 100 patients, beginningensifentrine, in the second half of 2018. In addition, following the completion2020.
Clinical studies with nebulized formulation of our DPI and pMDI formulation process,ensifentrine
Clinical trials we plan to commence pre‑clinical studies for RPL554have conducted with nebulized ensifentrine include a Phase 2, randomized, double-blind, double-dummy, placebo controlled, six-way complete block crossover study in these formulations in 2018, to be followed by the first clinical trials in healthy subjects or36 patients with moderate-to-severe COPD. Patients received albuterol (200 mg), ipratropium (40 mg) or placebo MDI followed immediately by nebulized ensifentrine (6 mg) or placebo. As shown in the graph below, ensifentrine alone was as effective as albuterol or ipratropium as a bronchodilator, and treatment with ensifentrine showed a significant additive bronchodilation (peak and average FEV1 over 8 hours) when dosed with either albuterol or ipratropium (p<0.001 compared to albuterol or ipratropium alone). Ensifentrine also resulted in an additive and significant reduction in lung volume and airway resistance.

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We do not expect the timing of these trials to be affected by any decision to progress more rapidly into Phase 3 clinical trials with our nebulized maintenance treatment for COPD.
In February 2017, we commencedconducted a Phase 2a double blind, placebo-controlled, three way cross-over trialcrossover study in 30 subjectspatients with moderate-to-severe COPD which included two different dosesto examine the effect of RPL554,ensifentrine when added to a standard dose of a single bronchodilator (LAMA, tiotropium or Spiriva®) in the United Kingdom. Patients received tiotropium 18 µg once daily, plus ensifentrine 1.5 mg, ensifentrine 6 mg or placebo twice daily for three days. In this study, we observed a significant increase in peak FEV1 when administering ensifentrine on top of tiotropium (103 mL and 127 mL for ensifentrine 1.5 mg and 6 mg, or placebo, dosed twice-daily for three days, in additionrespectively) as compared to tiotropium a commonly used long-acting anti-muscarinic bronchodilator, dosed once daily. This clinical trial was conducted in the United Kingdom. We reported positive top-line data from this trial earlier than expected, in September 2017. The data from this Phase 2a trial demonstrated significantly improved peak lung function when RPL554 was added to tiotropium in patients with moderate-to-severe COPD.
•    Primary outcome measures:
RPL554, compared to placebo, produced a statistically significant (1.5 mg, p=0.002; 6 mg, p<0.001) and a clinically meaningful (>100 ml) peak FEV1 on the third day of dosing (additional bronchodilation) when administered on top of the standard bronchodilator tiotropium (Spiriva®);
placebo. Average FEV1 on the third day of dosing (0 - 12 hours) of RPL554ensifentrine when added on top of tiotropium was larger than that of tiotropium alone (1.5mg, p=0.099; 6 mg, p<0.001);
In, thus the study, a p-value<0.05 is regarded as statistically significant.
•     Secondary outcome measures:
Both dosesco-primary endpoints of RPL554 produced a statistically significant faster onset of action (defined aspeak FEV1 and FEV1 average AUC 0-12h were met. AUC, or area under the curve, is a measure of effectiveness over a period of time. As shown in the graph below, there was also significant improvement by ≥10%; 1.5in both trough FEV1 and lung volume, including residual volume and functional residual capacity. The time to onset of ensifentrine and tiotropium was faster than with tiotropium alone (less than 5 minutes versus 37 minutes as shown in the graph below).

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We conducted a Phase 2b parallel group study in 403 patients with COPD in Europe to examine the effect in patients without concomitant bronchodilator therapy. Patients received either placebo or ensifentrine at doses ranging from 0.75 mg 4.2 min;to 6 mg 4.6 min)twice daily over 4 weeks. Treatment with ensifentrine met the primary endpoint for all doses, showing a statistically significant increase in peak forced expiratory volume in 1 second (FEV1) compared to placebo (p<0.001) with absolute changes from baseline >200 mL in peak FEV1 after 4 weeks of dosing. In addition, statistically significant improvements in average FEV1 over 12 hours were observed at all doses after the first administration, and this effect was sustained over 4 weeks. Notably, statistically significant and clinically meaningful improvements in total COPD symptoms (p<0.002) and dyspnea (p<0.02) were shown using the EXACT - Respiratory Symptoms (E-RS), a recognized daily patient-reported outcome measure for use in clinical studies of COPD, as well as the Transition Dyspnea Index. We believe that the progressive improvement in COPD symptoms over the 4-week treatment period, which was different from the immediate onset of the bronchodilator response, suggests the involvement of an anti-inflammatory effect.


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In January 2019, we announced top-line data from an exploratory Phase 2 three-way crossover pharmacological study in 79 moderate-to-severe COPD patients to study the effect of ensifentrine when added to tiotropiumdual bronchodilators (LAMA/LABA). The study was conducted in the United States and the United Kingdom. Patients were administered ensifentrine 1.5 mg or 6 mg or placebo twice daily for 3 days in addition to a tiotropium/olodaterol fixed dose combination (Stiolto® Respimat®). Patients were allowed to remain on a stable dose of ICS. Data showed a tolerability and safety profile generally in line with previous studies. This study was conducted in the challenging setting of COPD patients treated with what is thought to be "maximal bronchodilator therapy". Although the primary endpoint of a statistically significant improvement in morning peak FEV1 on the third day of dosing was not met, improvement in average FEV1 (additional bronchodilation) following the morning dose on the third day (0 - 4 hours) with 1.5 mg of ensifentrine was statistically significant when added on top of Stiolto® Respimat® compared to tiotropium alone (37.6 min;placebo added on top of Stiolto® Respimat® (1.5 mg, p=0.039). Statistically significant improvements in evening peak FEV1 (additional bronchodilation) on the third day of dosing, and significant reductions in lung volume after the evening dose of ensifentrine were observed with both the 1.5 mg and 6 mg dose groups, compared to placebo, when administered on top of Stiolto® Respimat® (evening peak FEV1: 1.5

mg, p<0.001)0.001; 6 mg p=0.002 (as shown in the graph below); post-evening dose residual volume: 1.5 mg, p=0.002; 6 mg, p=0.036).
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In January 2020, we reported top-line results from our 4 week 416-patient Phase 2b dose-ranging clinical trial. This trial evaluated four doses of RPL554nebulized ensifentrine (0.375 mg, 0.75 mg, 1.5 mg and 3.0 mg) or placebo as an add-on treatment to tiotropium caused(Spiriva® Respimat®), a marked reductioncommonly used LAMA bronchodilator, in Functional Residual Capacity (1.5symptomatic patients with moderate-to-severe COPD who required additional treatment.
The trial met its primary endpoint of improved lung function, with ensifentrine plus tiotropium producing a clinically and statistically significant dose-dependent improvement in peak FEV1 at week 4, compared to placebo plus tiotropium. The improvements ranged from 78 mL for the 0.375 mg p<0.01;dose (p=0.0368) to 124 mL for the 3.0 mg dose (p=0.0008) and were maintained over the 4-week study period. Dose-dependent improvements in lung function were observed on both average FEV1 AUC 0-4 hours and FEV1 AUC 0-12 hours. There was also a statistically significant improvement in average FEV1 AUC 0-12 hours of 87 mL for the 3.0 mg dose (p=0.0111), which we believe is supportive of twice daily dosing. Area Under the Curve over 0-12 hours post dose, or FEV1 AUC(0-12hr), was calculated using the trapezoidal rule, divided by the observation time (12 hours) to report in mL, a measure of the aggregate effect over 12 hours.

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Additionally, clinically meaningful improvements in health-related quality of life as measured by St. George's Respiratory Questionnaire for COPD (mean SGRQ-C) were observed on top of tiotropium, exceeding the minimal clinically important difference (“MCID”) of 4 units compared to placebo at week 4, with the two highest doses 1.5 mg and 3 mg also achieving statistical significance.The SGRQ-C is a validated instrument that measures impact on overall health, daily life, and perceived well-being in patients with COPD (i.e. change in frequency and severity of COPD symptoms, and impact on activities, social functioning and psychological disturbances related to airways disease).
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In the trial, ensifentrine was well tolerated at all doses with an adverse event profile similar to placebo. We believe that these data support dose selection for our planned Phase 3 program, which we anticipate initiating in the third quarter of 2020, subject to FDA feedback and funding.


Clinical studies with handheld DPI and MDI formulations of ensifentrine
In August 2019, we announced results from our Phase 2 clinical trial evaluating a DPI formulation of ensifentrine for the maintenance treatment of patients with COPD. The magnitude of improvement in lung function, as measured by FEV1 was highly statistically significant and we believe this supports twice daily dosing of ensifentrine for COPD treatment. Secondary lung function endpoints were also met, and ensifentrine was well tolerated at all dose levels. We believe that delivery of ensifentrine with a hand-held inhalation device, such as the DPI format, could substantially expand the clinical utility and commercial opportunity in COPD treatment.

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In June 2019, we announced the initiation of a Phase 2 dose-ranging trial to evaluate the pharmacokinetic, or PK profile, efficacy, and safety of a pressurized MDI formulation of ensifentrine in patients with moderate-to-severe COPD. We anticipate reporting data from the single-dose portion of this trial (Part A) early in the second quarter of 2020, and reporting results from the second portion of the trial (Part B), which evaluates multiple doses of the MDI formulation of ensifentrine, in the second half of 2020.
Ensifentrine has been observed to be well tolerated in our clinical studies performed to date when administered alone, and as an add-on therapy to commonly used bronchodilators at dose levels ranging from 0.4 mg to 24 mg. Dose-limiting toxicities have not been observed. To date across all studies and populations, 13 subjects have reported 16 serious adverse events, or SAEs. Of these events, only two were assessed as possibly related to ensifentrine, although relevant mitigating factors were subsequently considered. In our completed clinical trials adverse events were rare, with nature and incidence similar to placebo. In ECGs assessed in over 800 patients with COPD, and 24-hour Holter monitoring in over 400 patients, no meaningful effects were observed compared to placebo, except for a small, transient and not clinically meaningful increase in peak heart rate of approximately 3 beats per minute with the 6 mg p<0.05)dose of ensifentrine. Ensifentrine had no observed effect on cardiac function as measured by electrocardiograms, including QT intervals, a measure of time between certain waves in the heart's electrical cycle and measure of a potential cardiovascular adverse event. In addition, we did not observe an increase in incidence of any adverse event compared to commonly used bronchodilators when ensifentrine was used alone. In our studies, the most common adverse events have been mild to moderate, and included headache, dizziness, cough, nasopharyngitis (throat irritation) and rash, which occurred with comparable frequency to placebo.
An End of Phase 2 Meeting with the FDA is planned to take place during the first half of 2020, to discuss our planned Phase 3 clinical trial design and program. We intend to use the data from all our completed studies, including data from our most recently completed Phase 2b trial to inform our future studies, including the design of our planned Phase 3 program for the maintenance treatment of COPD with nebulized ensifentrine.

Additional studies with ensifentrine have been completed in healthy volunteers, and in Residual Volume (1.5 mg, p=0.07; 6 mg, p<0.01), both measures of trapped air in the lung, as compared to tiotropium alone, suggesting that RPL554 treatment may reduce dyspnea,patients with asthma and with cystic fibrosis.
We conducted a major debilitating symptom of COPD. 
In June 2017 we commenced an IND-opening single-dose pharmacokinetic, or PK, trial in 12 healthy volunteers in the US. We reported top-line data from this trial earlier than expected in September 2017.United States. A PK trial involves the study of the process of bodily absorption, distribution, metabolism and excretion of a drug. With any inhaled or nebulized medication, a portion of the substance is deposited in the mouth and then swallowed by the patient. The results showed that in the study subjects only 10.4 percent of the inhaled dose of ensifentrine entered the bloodstream via the gastrointestinal tract. The low oral bioavailability of nebulized RPL554,ensifentrine, as demonstratedwas shown in thethis study, is consistent with optimal inhaled delivery of medications for the treatment of COPD and asthma. Therefore the results from this study confirm thatsupport our approach of developing inhalation is an appropriate form offormulations for the administration of RPL554ensifentrine.
Ensifentrine has also shown anti-inflammatory effects in sputum samples from a model of COPD-like lung inflammation in human subjects. In a Phase 1 clinical trial, 21 healthy evaluable subjects were treated with either ensifentrine or placebo once daily for patients.six days before airway challenge with aerosolized lipopolysaccharide, or LPS. LPS challenge induces an inflammatory response in the lung with a large proportion of neutrophils, which is a common type of white blood cell widely recognized as the most important inflammatory cell in COPD. LPS challenge is a well-validated and commonly used measure to assess the anti-inflammatory effects of novel compounds and is of particular relevance to drugs used in the treatment of COPD. Subjects treated with ensifentrine were observed to have significantly lower absolute numbers of neutrophils in sputum collected six hours after LPS challenge, and a significant reduction in the absolute numbers of other inflammatory cells, including lymphocytes, macrophages and eosinophils, at the same time point (as shown in the graph below). Eosinophils are prevalent in the lungs of some patients with COPD and in the vast majority of patients with asthma. These observations suggest that ensifentrine has the potential to target the chronic inflammatory processes in COPD, CF and other respiratory diseases, including asthma.

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Clinical Development of Ensifentrine in Cystic Fibrosis and Asthma
We conducted a Phase 2, double-blind, placebo-controlled, seven-way complete block crossover study in 29 patients with mild-to-moderate chronic asthma. Patients received four single doses of ensifentrine (0.4 mg, 1.5 mg, 6 mg and 24 mg), two doses of nebulized albuterol (2.5 mg and 7.5 mg) and placebo in a randomized sequence. The results demonstrated that ensifentrine produced dose-dependent bronchodilation with a magnitude that was comparable to a maximal dose of albuterol.

In March 2017,2018, we commencedreported top-line data from a Phase 2a single-dose PK and pharmacodynamics, or PD, trial in the United Kingdom evaluating RPL554ensifentrine in up to ten CF patients and expect to report top-line data from this trial late in the first quarter of 2018.patients. A PD trial involves the study of the biochemical and physiological effects of a drug and its mechanism of action, including the correlation of the drug's actions and effectsaction. The PK profile was consistent with its chemical structure. The results of this clinical trial will support dose selection for a proof-of-concept Phase 2b trialthat observed in approximately 100 patients with COPD, although with lower peak serum levels of ensifentrine in CF which we planpatients. The serum half-life was dose dependent: 7.5 to commence10.1 hours for the 1.5 mg and 6 mg doses, respectively. Ensifentrine elicited a statistically significant increase in 2018.average FEV1 in treated patients for the 1.5 mg dose (all time points, p<0.01) and the 6 mg dose (all time points p<0.05) at 4-, 6-, and 8-hour time points. Ensifentrine was observed to be well-tolerated in this patient group with an adverse event profile consistent with other studies with the compound.

FURTHER INFORMATION
According to the World Health Organization, over one billion people suffer from chronic respiratory diseases. Among the most common of these afflictions is COPD, which is a progressive respiratory disease for which there is no cure. COPD damages the airways and the lungs and leads to shortness of breath, impacting a person's ability to perform daily activities. Chronic inflammation plays a central role in the pathology of the disease, and is particularly prominent in the airways of COPD patients. COPD includes chronic bronchitis, which refers to the inflammation of the lung and airways that results in coughing and sputum production, and emphysema, which refers to a destruction of distal lung tissue, or air sacs. In some cases, patients with COPD experience exacerbations, which are estimated to cause approximately 1.5 million emergency department visits, 687,000 hospitalizations and 129,000 deaths per year in the United States alone. According to the World Health Organization, COPD is expected to become the third leading cause of death globally by 2030, with 210384 million people worldwide suffering from the disease. It is estimated that there are 24 million people with COPD in the United States, only about half of whom 16 million have been diagnosed. Of those diagnosed with COPD in the United States, more than 23 million suffer from severe or very severe forms of the disease. Total annual medical costs relating to COPD in the United States were estimated to be $32 billion in 2010 and are projected to rise to $49 billion in 2020. WhereasGlobal sales of drugs used for chronic maintenance therapy of COPD were $13.6 billion in 2019, of which $9.6 billion were in the US. While the number of patients diagnosed with COPD in the USUnited States continues to increase annually, the growth in numbers in countries like China is significantly higher. The prevalence of COPD in China is estimated to be about 8% of the population aged over 40, and this percentage is expected to increase in coming years. Global sales of drugs currently indicated for COPD in major markets were approximately $15 billion in 2015 and are expected to grow to $20 billion by 2025.
COPD patients are commonly treated with bronchodilators, which seek to relieve airway constriction and make it easier to breathe, and inhaled corticosteroids, which seek to reduce lung inflammation. For patients with more severe disease who experience recurrent exacerbations, and for whom inhaled corticosteroids are not effective, an oral formulation of a PDE4 inhibitor, which is an anti-inflammatory agent, may also be used as treatment. Despite the wide availability of these therapies, many COPD patients continue to suffer exacerbations and have continued respiratory symptoms, which limit their daily activities. Furthermore, current therapies have not demonstrated an ability to change the progressive decline in lung function or reduce the mortality associated with COPD. We believe there is an urgent and unmet medical need for new and more effective treatments for COPD to reduce the number and burden of symptoms, reduce exacerbations and establish a consistent and durable treatment response.
Cystic fibrosisCF is the most common fatal inherited disease in the United States and Europe. CF causes impaired lung function and is commonly associated with repeat and persistent lung infections due to the inability to clear thickened phlegm, or mucus, from the lung. This condition often results in frequent exacerbations and hospitalizations. There is no cure for CF and although current therapies are leading to longer lifespans the median age of death for CF patients is still only around 40 years. CF is considered a rare, or orphan, disease by both the FDA and the EMA. According to the Cystic Fibrosis Foundation, more than 30,000 people in the United States and more than 70,000 people worldwide are living with CF and approximately 1,000 new cases of CF are diagnosed each year. The FDA and the EMA provide incentives for sponsors to develop products for orphan diseases, and we plan to seek orphan drug designation for RPL554ensifentrine in treating CF. CF patients require lifelong treatment with multiple daily medications, frequent hospitalizations and, ultimately, lung transplants in some end-stage patients. The quality of life for CF patients is compromised as a result of spending significant time on self-care every day and frequent outpatient doctor visits and hospitalizations. CF patients take an average of seven medications daily. In the 12-month period ended June 30, 2016, globalGlobal sales of drugs currently indicated for CF totaled $4.1 billion. The global market for CF drugs is expected to increase to $7.0 billion in 2020.
RPL554 is a first-in-class, inhaled, dual inhibitor of PDE3 and PDE4. Phosphodiesterases, or PDEs, are well known and validated therapeutic targets, and many PDE inhibitors, with different specificities, are currently available in the market for other indications. PDE3 is present in airways and the lung, and inhibition of this enzyme is primarily responsible for the bronchodilatory action of RPL554. PDE4 is found in inflammatory and epithelial cells, and inhibition of this enzyme contributes to RPL554's anti-inflammatory activity. PDEs metabolize the critical signaling molecules, cyclic adenosine monophosphate, or cAMP, and cyclic guanosine monophosphate, or cGMP. By inhibiting PDE3 and PDE4, RPL554 increases the levels of cAMP and cGMP, resulting in bronchodilator and anti-inflammatory effects. RPL554 also stimulates the cystic fibrosis transmembrane conductance regulator, or CFTR, which is an ion channel in the epithelial cells lining the airways. Mutations in the CFTR protein result in poorly or

non-functioning ion channels, which cause CF and are potentially important in COPD. CFTR stimulation leads to improved electrolyte balance in the lung and thinning of the mucus, which facilitates mucociliary clearance and leads to improved lung function and potentially a reduction in lung infections. Dual inhibition of PDE3 and PDE4 has been observed to be more effective than inhibition of either PDE alone at relaxing airway smooth muscle cells and suppressing the activation and functions of pro-inflammatory cells residing in the lung, both of which are commonly understood to play a significant role in COPD and CF.
The figure below illustrates the three key mechanisms of action of RPL554 in respiratory diseases:

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In our clinical trials, RPL554 has shown rapid onset and durable bronchodilation in healthy subjects and patients with COPD or asthma when inhaled from a nebulizer. In addition, RPL554 has been observed to be complementary and additive when administered as an add-on therapy to other currently marketed bronchodilators. In 2017 we announced the results of a Phase 2a clinical trial of RPL554 in 30 patients with COPD. Our primary objective in this clinical trial was to evaluate the improvement in lung function, as measured by the maximal volume of air a person can forcefully exhale in one minute, FEV1, and the duration of action of RPL554. We evaluated RPL554 administered as an add-on therapy to a commonly used bronchodilator tiotropium, marketed as Spiriva. We observed clinically meaningful and statistically significant improvement in lung function, as measured by FEV1, when RPL554 was administered as an add-on therapy to a standard dose of tiotropium as compared to a standard dose of tiotropium alone. In this clinical trial, we observed the effect size, or peak improvement was 127 ml and 104 ml for 1.5mg and 6mg doses respectively over tiotropium alone. P-value is a conventional statistical method for measuring the statistical significance of clinical results. A p-value of 0.05 or less represents statistical significance, meaning that there is a less than 1-in-20 likelihood that the observed results occurred by chance. In addition, RPL554 administered as an add-on therapy to tiotropium resulted in a statistically significant reduction in time of onset of bronchodilation as compared to tiotropium alone. The data from this study was highly consistent with the results of a previous Phase 2a clinical trial we announced in 2016 of RPL554 in 36 patients with COPD. Our primary objective in that clinical trial was to evaluate the improvement in lung function, as measured by FEV1, and the duration of action of RPL554. We evaluated RPL554 administered as a single agent as compared to placebo and two commonly used bronchodilators, albuterol, also known as salbutamol and marketed as Ventolin, and ipratropium, marketed as Atrovent. We also evaluated RPL554 administered as an add-on therapy to either albuterol or ipratropium, in each case as compared to albuterol or ipratropium alone. We observed that RPL554 administered as a single agent produced statistically significant improvements in lung function, as measured by FEV1, as compared to placebo, with a p-value of less than 0.001. P-value is a conventional statistical method for

measuring the statistical significance of clinical results. We also observed clinically meaningful and statistically significant improvement in lung function, as measured by FEV1, when RPL554 was administered as an add-on therapy to standard doses of albuterol and ipratropium as compared to standard doses of either bronchodilator alone. In this clinical trial, we observed the effect size, or peak improvement minus placebo improvement, was 51% higher for the add-on-therapy of RPL554 with albuterol as compared to albuterol alone, and 66% higher for the add-on-therapy of RPL554 with ipratropium as compared to ipratropium alone. In addition, RPL554 administered as an add-on therapy to either albuterol or ipratropium resulted in a statistically significant reduction in time of onset of bronchodilation as compared to albuterol or ipratropium alone.
RPL554 also has shown anti-inflammatory effects in sputum samples from a model of COPD-like lung inflammation in human subjects. In a Phase 1 clinical trial, 21 healthy evaluable subjects were treated with either RPL554 or placebo once daily for six days before airway challenge with aerosolized lipopolysaccharide, or LPS. LPS challenge induces an inflammatory response in the lung with a large proportion of neutrophils, which is a common type of white blood cell widely recognized as the most important inflammatory cell in COPD. LPS challenge is a well-validated and commonly used measure to assess the anti-inflammatory effects of novel compounds and is of particular relevance to drugs used in the treatment of COPD. Subjects treated with RPL554 were observed to have significantly lower absolute numbers of neutrophils in sputum collected six hours after LPS challenge, and a significant reduction in the absolute numbers of other inflammatory cells, including lymphocytes, macrophages and eosinophils, at the same time point. Eosinophils are prevalent in the lungs of some patients with COPD and in the vast majority of patients with asthma. These observations suggest that RPL554 also has the potential to target the chronic inflammatory processes in COPD, CF and other respiratory diseases, including asthma.
In September 2017 we reported top-line data from an IND-opening single-dose pharmacokinetic, or PK, trial in 12 healthy volunteers in the United States. A PK trial involves the study of the process of bodily absorption, distribution, metabolism and excretion of a drug. With any inhaled or nebulized medication, a portion of the substance is deposited in the mouth and then swallowed by the patient. The results showed that in the study subjects only 10.4 percent of the inhaled dose entered the bloodstream via the gastrointestinal tract. The low oral bioavailability of nebulized RPL554, as demonstrated in the study, suggests that inhalation delivers an optimal dose of RPL554 and is consistent with inhaled delivery of medications commonly used for the treatment of COPD and asthma. Therefore,CF were $3.5 billion in 2019, of which $2.0 billion were in the results from this study confirmed that inhaled RPL554US.
Asthma is an appropriate formwidely seen as a result of administration for patients.
In addition, based on our pre-clinical studies, we believe that RPL554 has the potential to reduce the deleteriouschronic inflammation in CFthe lungs. Worldwide 300 million people suffer from asthma with about 25 million diagnosed in the US alone. Global sales of drugs used for the treatment of asthma were $16.5 billion in 2019, with $9.7 billion in the US. Established treatments include those adopted from the treatment of COPD (for example, bronchodilators and ICS), anti-IgE agents and leukotriene inhibitors. Approximately 1 million patients which seems to be largely driven by neutrophils, reduce airway obstruction through bronchodilationin the United States are refractory asthmatic patients who remain uncontrolled on established therapies. These patients are the target for injectable biologic anti-IL-5 agents. Annual sales of biologics in the United States for the treatment of asthma exceed $1.0 billion. We see potential for ensifentrine as an inhaled product for such patients.
We may also explore the development of ensifentrine in MDI and/or DPI formulations for the treatment of asthma and enhance mucociliary clearance through stimulation of the CFTR on airway epithelial cells. We believe the bronchodilator and anti-inflammatory properties of RPL554, combined with its ability to decrease mucus viscosity thereby improving mucociliary clearance, suggest that inhibition of PDE3 and PDE4 is an attractive therapeutic strategy to treat CF.other respiratory diseases.
We have worldwide commercialization rights for RPL554. As of February 6, 2018 ourensifentrine. Our intellectual property portfolio includes sevengranted and issued U.S. patents fouras well as pending U.S. patent applications, 20 issued foreign patents in countries including China, Canada, Brazil, Japan, Mexico and Australia, and also including four issued European patents that have been validated in many European countries, including Germany, Italy, Spain, France and the United Kingdom, and 52 pending foreign applications in regions including Canada, Mexico, Asia and Europe, and also including one patent application made under the Patent Cooperation Treaty, or PCT.applications. These patents and patent applications include claims directed to RPL554ensifentrine composition of matter, new dosage formulations and a crystalline polymorph, as well as methods of making and using RPL554ensifentrine in the treatment of respiratory diseases, with expected expiry dates between 2020 and 2037.2037, as described further below.
We were incorporated in February 2005 and are headquartered in the United Kingdom. Since September 2006, our ordinary shares have traded on AIM, a market of the London Stock Exchange, under the symbol "VRP". We

have raised approximately £145 million in gross proceeds from investors since such listing, of which approximately £70£70.3 million was raised in our initial public offering of our American Depositary Shares, or ADSs, in April and May 2017, which are listed on The Nasdaq listingGlobal Market, or Nasdaq, under the symbol “VRNA,” and the accompanying private offering in Europe of our ordinary shares, or the global offering, and a concurrent private placement to certain shareholders of our ordinary shares, or the shareholder private placement; we raised a furtherplacement, and £45 million was raised in our July 2016 private placement of equity securities with a number of European and U.S.-based healthcare specialist investment firms.firms, or the July 2016 Placement. Members of our management team and board of directors have extensive experience in large pharmaceutical and biotechnology companies in respiratory product development from drug discovery through commercialization and have played important roles in the development and commercialization of several approved respiratory treatments, including Symbicort Daliresp/®, Daliresp®/Daxas Spiriva®, Flutiform®, Advair®, Incruse®, Ellipta®, and Flutiform.

Anoro Ellipta
®.
Our Product Candidate Pipeline
The following table depicts the potential indications for RPL554ensifentrine and their current development status:
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Our Strengths
We believe that our company has the following key distinguishing characteristics:
Potential for multiple targeted indications, formulations and add-on therapies.  We are initially developing RPL554ensifentrine in a nebulized formulation for the maintenance treatment of COPD patients. While ensifentrine can be used as a standalone treatment in these patients, we are focusing on COPD patients who are symptomatic despite using currently available standard-of-care COPD treatments, because ensifentrine has shown improvements in lung function when administered as an add-on therapy to short-acting bronchodilatorssingle and other commonly used therapies for the treatment of hospitalized patients with acute exacerbations of COPD and the treatment of CF.dual bronchodilators. We also are developing RPL554ensifentrine in both DPI and pMDIMDI formulations for the maintenance treatment of COPD. In addition, we may explore the development of RPL554ensifentrine in theseinhaled formulations for the treatment of CF, asthma and other respiratory diseases. Based on the favorable properties of RPL554ensifentrine that we have observed in our clinical trials, we believe RPL554ensifentrine has broad potential applicability in the treatment of other respiratory diseases, either as a single agent or as an add-on therapy.
Observed clinical benefit and favorable tolerability as a single agent and as an add-on therapy with a favorable safety profile.in clinical trials.  We have completed enrollment of patients in twelvereported data from fifteen Phase 1 and 2 clinical trials for RPL554ensifentrine with over 7001,300 subjects enrolled; ten of these studies have been reported, one study is expected to report late in the first quarter of 2018 and one study is expected to report early in the second quarter of 2018.enrolled. We have observed statistically significant improvements in lung function as compared to placebo, as well as clinically meaningful and statistically significant improvements in lung function when RPL554ensifentrine is added to several commonly used bronchodilators as compared to such bronchodilators administered as a single agent. In addition, we observed a more rapid time of onset of bronchodilation when RPL554 was administered as an add-on therapy to these bronchodilators. RPL554 also has shown anti-inflammatory effects and been well tolerated in our clinical trials, and has not been observed to result in the gastrointestinal or other side

effects commonly associated with roflumilast, the only PDE4 inhibitor currently on the market approved for treatment of COPD.bronchodilators administered as a single agent or in combination. In addition, RPL554 has not beenwe observed a more rapid time of onset of bronchodilation when ensifentrine was administered as an add-on therapy to resultthese bronchodilators. We have also observed in any cardiovascular effects, other than a small increasefour-week study in heart rateCOPD patients statistically significant improvements in COPD patient symptom scores. Notably, statistically significant and clinically meaningful improvements in total COPD symptoms (p<0.002) and dyspnea (p<0.02) were shown using the EXACT - Respiratory Symptoms (E-RS), a recognized daily patient-reported outcome measure for use in clinical studies of COPD, as well as the Transition Dyspnea Index. We believe that the progressive improvement in COPD symptoms over the 4-week treatment period, which was different from the immediate onset of the bronchodilator response, suggests the involvement of an anti-inflammatory effect.
Our recently completed 4 week 416-patient Phase 2b dose-ranging clinical trial evaluated four doses of nebulized ensifentrine (0.375 mg, 0.75 mg, 1.5 mg and 3.0 mg) or placebo as an add-on treatment to tiotropium (Spiriva® Respimat®), a commonly used LAMA bronchodilator, in symptomatic patients with moderate-to-severe COPD who required additional treatment.
The trial met its primary endpoint of improved lung function, with ensifentrine plus tiotropium producing a clinically and statistically significant dose-dependent improvement in peak FEV1 at week 4, compared to placebo plus tiotropium. The improvements ranged from 78 mL for the highest doses tested.0.375 mg dose (p=0.0368) to 124 mL for the 3.0 mg dose (p=0.0008) and were maintained over the 4-week study period. Dose-dependent improvements in lung function were observed on both average FEV1 AUC 0-4 hours and FEV1 AUC 0-12 hours. There was also a statistically significant improvement in average FEV1 AUC 0-12 hours of 87 mL for the 3.0 mg dose (p=0.0111), which we believe is supportive of twice daily dosing. Area Under the Curve over 0-12 hours post dose, or FEV1 AUC(0-12hr), was calculated using the trapezoidal rule, divided by the observation time (12 hours) to report in mL, a measure of the aggregate effect over 12 hours.
Differentiated mechanism of action in a single compound.  RPL554Ensifentrine is aan investigational potential first-in-class, inhaled, dual inhibitor of PDE3 and PDE4 that actsis designed to act as both a bronchodilator and an anti-inflammatory agent in a single compound and stimulatesstimulate the CFTR. Dual inhibition of PDE3 and PDE4 has been shown to be more effective than inhibition of either PDE alone at relaxing airway smooth muscle cells and suppressing the activation and functions of pro-inflammatory cells residing in the lung, both of which are commonly understood to play a significant role in COPD, CF and CF.asthma. In addition, through this dual mechanism, RPL554ensifentrine is also stimulatesdesigned to stimulate the CFTR, which we believe is important in the treatment of CF and potentially COPD. We believe that RPL554ensifentrine, if successfully developed and approved, has the potential to be a more effective and better tolerated treatment offor COPD than existing treatments, for COPD, including roflumilast, the only currently approved PDE4 inhibitor. This dual mechanism of action also suggests that ensifentrine could be a useful treatment for patients with moderate to severe asthma that remain symptomatic despite being treated with standard-of-care.
Established regulatory pathway and well-defined clinical endpoints.  Our planned clinical trials for RPL554ensifentrine for the maintenance treatment of COPD will be designed to evaluate the compound's effect on FEV1, COPD symptoms, exacerbations and its duration of action of our product candidate.action. We will also monitor COPD-like symptoms as an improvement would be considered very important to these patients. These clinical endpoints are commonly used in clinical trials for respiratory diseases and have been used by other companies in obtaining FDA approval of drugs addressing respiratory diseases.
Addressing significant market opportunities.  Despite the availability of bronchodilators and anti-inflammatory corticosteroid or PDE4 inhibitor treatments for COPD, many patients continue to suffer from significant symptoms and may experience acute exacerbations leading to hospitalization. Furthermore, current therapies have not demonstrated an ability to change the progressive decline in lung function or reduce the mortality associated with COPD. We believe a large market opportunity with significant unmet medical need exists in COPD.COPD and especially in moderate to severe patients with limited further treatment alternatives. We believe the properties of RPL554ensifentrine, namely bronchodilation and the reduction of COPD-like symptoms, make it attractive as an important and novel potential treatment of patients with COPD, as well as for patients with CF and asthma. We plan to seek orphan drug designation of RPL554ensifentrine for the treatment of CF.
Experienced management team.  Members of our management team and board of directors have extensive experience in large pharmaceutical and biotechnology companies in respiratory product development from drug discovery through commercialization, and have played important roles in the development and commercialization of several approved respiratory treatments. We believe that the experience of our management team and our network of relationships within the industry and medical community provides us with insight into product development and identification of other opportunities in the respiratory field.

community provides us with insight into product development and identification of other opportunities in the respiratory field.
Our Strategy
We intend to become a leading biopharmaceutical company focused on the treatment of respiratory diseases with significant unmet medical needs. The key elements of our strategy to achieve this goal include:
Rapidly advanceAdvance the development of nebulized RPL554ensifentrine for the maintenance treatment of COPD.  We intend to initially develop RPL554nebulized ensifentrine for the maintenance treatment of COPD. We are conducting an ongoing four‑weekbelieve there is a large market opportunity for ensifentrine as a maintenance treatment as many of the moderate-to-severe COPD patients continue to be uncontrolled and symptomatic despite treatment with currently available medications. We believe that we have validated the dose and commercial positioning of ensifentrine in our comprehensive Phase 2b dose ranging2 clinical trial to evaluate RPL554 for the maintenance treatment of COPD. In this trial, we are comparing the use of RPL554 in a nebulized formulation to placebo in approximately 400 patients. This trial has completed patient enrollmentprogram, and we plan to participate in an End of Phase 2 Meeting with the FDA to obtain guidance on our planned Phase 3 program, which we anticipate will include two large-scale pivotal studies. We expect to report top‑line data earlymeet with the FDA for our End of Phase 2 Meeting in the secondfirst half of 2020, and initiate our Phase 3 clinical studies in the third quarter of 2018.2020, subject to FDA feedback and to funding.
Depending on
We have shown that ensifentrine can provide additional bronchodilation as add-on to patients treated with maximum approved bronchodilator therapy (LAMA/LABA), as measured by FEV1 and residual volume, over a 24-hour period and, in particular, following the evening dose. This data is very encouraging in a large but hard-to-treat population who have very limited alternative treatment options.
Taking into account the data from all clinical trials conducted with RPL554ensifentrine to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554nebulized ensifentrine, we will consider any opportunity to focus and accelerateare focusing our development plans for RPL554, includingon proceeding more rapidly towards Phase 3 clinical trials particularly with nebulized RPL554ensifentrine for the maintenance treatment of COPD. This could possibly avoid or shortenTherefore our focus is currently on the previously planned 12-week Phase 2b dose-ranging clinical trial. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554ensifentrine as a treatment for acute exacerbations of COPD hospitalized patients and as a treatment for CF and asthma patients.
We plan on studying RPL554 on top of two commonly used long acting bronchodilators in a dose ranging, three way cross-over trial involving up to 100 patients with moderate to severe COPD. We plan on starting this trial in the fourth quarter of 2018.

Adapt the current nebulized formulation and presentation of RPL554.ensifentrine. RPL554The ensifentrine suspension for nebulized administration is currentlyhas been presented in a glass vial with a flip, tear-up cap.cap in clinical studies to date. This format is adequate for clinical trials but patient acceptance in a commercial setting is expected to be improved by a switch to presenting the suspension formulation of RPL554ensifentrine in plastic ampules. We will investigate the feasibility to manufacture and supply RPL554 nebulized suspension formulation in plastic ampules. In addition to patient acceptance, switching to plastic ampules, maywhich is also be more cost-effectivecost effective for manufacturing in larger volumes. A decision onunit dose plastic ampule presentation form will be made beforeformat for the start ofensifentrine nebulizer suspension has been under development, and we are positioning this for use in Phase 3 clinical trials; during this evaluation process we will also review and optimize the nebulized suspension formulation as part of a quality by design program.trials.
Advance the development of nebulized RPL554 for the treatment of acute exacerbations of COPD. We also are developing RPL554 as an add‑on therapy to short‑acting bronchodilators and other commonly used therapies for the treatment of hospitalized patients with acute exacerbations of COPD. We plan to commence a Phase 2 clinical trial in the United States for RPL554 for this indication late in the second half of 2018. Depending on the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical trials, particularly with nebulized RPL554 for the maintenance treatment of COPD. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD in hospitalized patients and as a treatment for CF patients.
Develop RPL554 for the treatment of CF. In March 2017, we commenced a Phase 2a single‑dose trial in the United Kingdom of RPL554 in up to ten CF patients to evaluate the PK and PD profile and tolerability of RPL554, as well as examine the effect on lung function. We expect to report top‑line data from this trial late in the first quarter of 2018. The results of this trial are expected to support dose selection for a proof‑of‑concept Phase 2b trial in Europe in approximately 100 patients with CF, which we plan to commence late in the second half of 2018.Depending on the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical trials, particularly with nebulized RPL554 for the maintenance treatment of COPD. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD in hospitalized patients and as a treatment for CF patients.
Develop DPI and MDI formulations of RPL554.ensifentrine. In addition to our nebulized formulation of RPL554,ensifentrine, we are developing RPL554ensifentrine in both DPI and pMDIMDI formulations for the maintenance treatment of COPD. We believe the development of DPI and pMDIMDI formulations has the potential to significantlysubstantially increase the market opportunity for RPL554,ensifentrine, if approved, for the maintenance treatment of COPD. Following the progressionWe have now developed DPI and MDI formulations of ensifentrine, and have obtained favorable Phase 2 clinical trial results for our DPI formulation. We expect complete results from our Phase 2 MDI trial in the third quarter of 2020, and pMDI formulation process, we planare seeking partnerships with larger commercial-stage pharmaceutical and biotechnology companies to commence pre‑clinical studies for RPL554 inadvance these formulations in 2018,programs further, including potential opportunities to be followed by the first clinical trials in healthy subjects or patients with COPD. In addition, we may explore the development of RPL554ensifentrine in these formulations for the treatment of asthma and other respiratory diseases.
Develop ensifentrine for the treatment of CF. We have completed a Phase 2a single‑dose trial in the United Kingdom of ensifentrine in ten CF patients to evaluate the PK and PD profile and tolerability of ensifentrine, as well as examine the effect on lung function. Ensifentrine demonstrated a statistically significant bronchodilator effect, a PK profile that is consistent with that observed in patients with COPD while being well tolerated.
Pursue development of RPL554ensifentrine in other forms of respiratory disease. We believe that RPL554'sensifentrine's properties as an inhaled dual inhibitor of PDE3 and PDE4 give it broad potential applicability in the treatment of other respiratory diseases. We may explore development of RPL554ensifentrine to treat other forms of respiratory disease following development of RPL554ensifentrine for the treatment of COPD, CF and CF.asthma.
Seek strategic collaborative relationships. We may seek strategic collaborations with market-leading biopharmaceutical companies to develop and commercialize RPL554.ensifentrine. We believe these collaborations could provide significant funding to advance the development of RPL554 while allowing us to benefit from the development or commercialization expertise of our collaborators.

collaborations could provide significant funding to advance the development of ensifentrine while allowing us to benefit from the development or commercialization expertise of our collaborators.

Acquire or in-license product candidates for the treatment of respiratory diseases.  We plan to leverage our respiratory disease expertise to identify and in-license or acquire additional clinical-stage

product candidates that we believe have the potential to become novel treatments for respiratory diseases with significant unmet medical needs.
RPL554 for the Treatment of COPD
Overview
Our product candidate, RPL554, is a first-in-class, inhaled, dual inhibitor of PDE3 and PDE4 that acts as both a bronchodilator and an anti-inflammatory agent in a single compound. We are not aware of any therapy in a single compound in clinical development or approved by the FDA or the EMA, for the treatment of respiratory diseases that acts as both a bronchodilator and anti-inflammatory agent. We believe RPL554 has the potential to be the first novel class of bronchodilator in over 40 years.
COPD Background
COPD is a progressive respiratory disease for which there is no cure. COPD damages the airways and the lungs and leads to shortness of breath, impacting a person's ability to work, exercise, sleep and perform other daily activities. Part of the pathology of the disease is chronic airway inflammation and constriction of airway muscles. Airflow limitation in COPD patients results from mucosal and airway inflammation and edema, or excess fluid in the airway walls, bronchoconstriction, increased secretions in the airways and loss of elastic recoil, or the ease with which the lung rebounds after having been stretched by inhalation. COPD includes chronic bronchitis, which refers to the inflammation of the lung and airways that results in coughing and sputum production, and emphysema, which refers to a destruction of distal lung tissue, or air sacs. In some cases, hospitalized patients with COPD experience acute exacerbations, which include rapid and prolonged worsening of symptoms.
According to the World Health Organization, COPD is the third leading cause of death globally, with 210 million people worldwide suffering from the disease. The U.S. Centers for Disease Control and Prevention, or CDC, estimates that there are 24 million people with COPD in the United States, only half of whom have been diagnosed. Of those diagnosed with COPD in the United States, approximately 2 million suffer from severe or very severe forms of the disease. Acute exacerbations or COPD are estimated to cause approximately 1.5 million emergency department visits, 687,000 hospitalizations and 129,000 deaths per year in the United States alone. According to the CDC, total annual medical costs relating to COPD in the United States were estimated to be $32 billion in 2010, and are projected to rise to $49 billion in 2020. An estimated 16.4 million days of work were lost due to COPD each year in the United States. Global sales of drugs currently indicated for COPD were $10.6 billion in 2016 and are expected to grow to $15.6 billion in 2019.
Current Treatment Landscape of COPD
There are no approved therapies for COPD that alter the progression, rate of decline of lung function or mortality of the disease. The goal of current COPD treatments is to alleviate symptoms, decrease the frequency and severity of exacerbations, and reduce limitations on daily activities. COPD patients are commonly treated with bronchodilators, which seek to relieve airway constriction and make it easier to breathe, and inhaled corticosteroids, which seek to reduce lung inflammation. For patients with more severe disease who experience recurrent exacerbations, and for whom inhaled corticosteroids are not effective, an oral formulation of a PDE4 inhibitor, which is an anti-inflammatory agent, is available and may be used as treatment. Antibiotic therapy has also been shown to have a small but important effect on clinical recovery and outcome in hospitalized patients with bacterial infections that resulted in an acute exacerbation of COPD.
Despite the availability of bronchodilators, anti-inflammatory corticosteroids, an anti-inflammatory PDE4 inhibitor and antibiotics for treatment of COPD, many patients continue to suffer from significant symptoms and may experience acute exacerbations leading to increased doses of medication and hospitalization. Following an acute exacerbation of COPD and subsequent hospitalization, it may take many weeks for a patient's lung function to recover to pre-exacerbation levels. In addition, the rate of mortality of COPD patients within one year of hospitalization is approximately 20%, and patients with a need for hospital readmission have only a 20% five-year survival rate. Retrospective studies have demonstrated that more than 20% of patients discharged from hospital after an exacerbation of their COPD require readmission within 30 days of discharge. This has medical implications for the patient and is a financial burden for the healthcare system. We believe that increasing awareness of the problem of COPD patients returning for hospital treatment within 30 days of discharge has triggered a strong interest from industry, regulators and healthcare administrators and payors in optimizing the treatment of acute COPD exacerbations, both in the hospital setting and after patients are discharged.

For many COPD patients, a better and more effective maintenance treatment is required that can control their symptoms and reduce the risk of acute exacerbations. For patients that require hospitalization, essentially the same treatment modalities are used as in non-hospitalized patient treatment, however, they are often treated with higher doses, including with corticosteroids that are administered systemically rather than locally by inhalation. Acute medical treatment of COPD exacerbations has not changed in decades, with older, short-acting nebulized bronchodilators still used as a mainstay bronchodilator treatment in the acute hospital setting. This is despite hospitalizations for COPD being long, at about five days, expensive, and with a high mortality rate and high probability of hospital readmission. We believe there is an unmet medical need for an improved treatment approach.
Bronchodilators
Bronchodilators are the first-line therapy for the treatment of COPD patients. There are two existing classes of bronchodilators: beta2-agonists and anti-muscarinics. Long-acting versions of these bronchodilators, lasting 12 to 24 hours, are commonly used in the maintenance therapy of patients with COPD. Long-acting beta2-agonists, or LABAs, which are commonly used in combination with inhaled corticosteroids, include Advair (salmeterol and fluticasone), which had $2.4 billion in global sales in 2015, and Symbicort (formoterol and budesonide), which had $1.6 billion in global sales in 2015. Long-acting anti-muscarinics, or LAMAs, include Spiriva (tiotropium), which had $3.9 billion in global sales in 2015. In the United States, nebulized LABAs, which are only indicated for COPD, generated sales of $601 million in the 12-month period ending June 30, 2016. In addition to producing bronchodilation, beta2-agonists have been shown to improve mucociliary clearance in COPD patients, thereby potentially reducing mucus in the airways. LAMAs have a different mechanism of action and effect bronchodilation via different cell-surface receptors and through different intracellular pathways than LABAs. Studies with twice-daily LABAs indicate that clinically relevant improvements in dyspnea or health-related quality of life are only achieved by a minority of patients. Clinical data suggest that inhaled LAMAs may be somewhat more effective than LABAs in improving lung function of COPD patients. However, LAMAs have a relatively slow onset of action and both LABAs and LAMAs are contraindicated for acute use in the United States. Another limitation is a diminished effectiveness of beta2-agonists that can be experienced by some COPD patients over time. Some patients also have adrenergic side effects such as tremor or increased heart rate from existing beta2-agonists.
Short-acting versions of bronchodilators, lasting up to eight hours, are most commonly used to treat hospitalized patients who experience a worsening airway obstruction, including as a result of acute exacerbations of COPD. A short-acting beta2-agonist, or SABA, such as Ventolin (albuterol), which had $820 million in global sales in 2015, and a short-acting anti-muscarinic, or SAMA, such as Atrovent (ipratropium), which had $590 million in global sales in 2015, are typically used for relief of acute exacerbations of COPD. However, the response to bronchodilators can be highly variable in individual patients over time, and patients who are non-responders at one office visit may respond at a different visit. In addition, the frequent use of beta2-agonists can lead to reduced effectiveness of the drug due to the development of tolerance. As a consequence of this variability in responsiveness, a significant number of COPD patients are classified as non-responders to albuterol, the standard SABA used in the market. Based on screening visits in a large recent clinical trial conducted by GlaxoSmithKline, in which patients were treated with albuterol once every three months over a 12-month period, the rate of classification of patients as responders per treatment was 24% as measured by American Thoracic Society, or ATS, criteria. Classification as a responder pursuant to ATS criteria requires at least a 12% and 200 ml increase in FEV1. In addition, the rate of classification of patients as consistent responders, or responders at least three out of four times over the 12-month treatment period, was 14% as measured by ATS criteria. In another large study conducted by Boehringer Ingelheim, even when albuterol was combined with ipratropium, the rate of classification of patients as responders pursuant to the ATS criteria was just over 50%.
Bronchodilators can be delivered in a nebulized form or by a DPI or pMDI if patients are able to use proper technique, which may be difficult during an exacerbation. As a result, acute COPD exacerbations are often treated with a nebulizer. A nebulizer is both convenient and effective in delivering a large dose. Use of a nebulizer to provide bronchodilation enhances delivery of the therapeutic to the airways of the patient. Patients with more severe COPD, who tend to suffer more frequent exacerbations, generally prefer treatment with a nebulizer as they view its perceived benefits, including greater confidence in effective drug administration and a reduced need to visit health care providers, as outweighing its perceived disadvantages, which include length of treatment administration and required cleaning. In addition, use of a nebulizer is generally preferred when administering larger doses in the hospital setting.
Beta2‑agonists and anti‑muscarinics can be used as single agents for the treatment of COPD, but studies have shown that their combined use leads to greater bronchodilation than each used as a single agent because these

classes of bronchodilators have different mechanisms of action to improve lung function. Based on these findings, novel drugs combining a LABA and a LAMA in one inhaler device are being brought to market, such as Novartis’ Utibro Breezhaler (indacaterol and glycopyrrolate), which had $260 million in global sales in 2015. However, many patients, and especially those with more severe disease, still need more effective bronchodilation to improve their symptoms. Additionally, LABAs and LAMAs, acting alone or in combination, do not treat the underlying inflammation present in COPD.
Corticosteroids
Corticosteroids are used for treatment in a range of diseases for their anti‑inflammatory effect. However, corticosteroids do not affect neutrophils, which are widely recognized as the perhaps most important inflammatory cells in COPD. Corticosteroids have shown limited efficacy and are not approved as a stand‑alone treatment for COPD. Inhaled corticosteroids are commonly administered together with LABAs for the maintenance treatment of COPD. When administered with LABAs, corticosteroids have been shown to improve lung function and reduce exacerbation rates. However, recent studies have shown that removing inhaled corticosteroids from this treatment regimen does not lead to increases in exacerbations in a majority of patients, implying that the corticosteroid is not effective in all patients. In addition, inhaled corticosteroids (fluticasone) have been shown to decrease the immune response in some patients, which results in an increased incidence of pneumonia.
Recently, inhalers have been approved containing two long acting bronchodilators (one LAMA and one LABA) and an inhaled corticosteroid. These so-called triple therapies are combinations of medications that are already available in the market place as either single or dual agents. Triple therapy may offer advantages over double therapy (two bronchodilators) in some patients with COPD.
In the treatment of acute COPD exacerbations, corticosteroids are often administered systemically, either through injection or orally, in addition to high-dose bronchodilators. In this setting, corticosteroids may be effective in improving symptoms and lung function, reducing the rate of treatment failure and shortening the length of hospital stay. However, when given systemically, corticosteroids are known to be associated with side effects such as compromised adrenal gland function and reduced bone density.
PDE4 Inhibitors
PDE4 inhibitors have attracted recent attention for the treatment of COPD because PDE4 is broadly expressed in airways and in the lung. PDEs are well known and validated therapeutic targets, and several PDE inhibitors, with different specificities, are currently available in the market for other indications. PDE4 is found in inflammatory and epithelial cells, and inhibition of this enzyme contributes to RPL554’s anti‑inflammatory activity. PDE4 is the primary cAMP‑hydrolyzing enzyme in inflammatory and immune cells, especially neutrophils, lymphocytes, macrophages and eosinophils, all of which are found in the lungs of COPD patients. Inhibition of PDE4 leads to elevated cAMP levels in these cells, which results in anti‑inflammatory effects due to the down‑regulation of the inflammatory response.
The oral PDE4 inhibitor, roflumilast, has shown clinical efficacy as an oral therapeutic in the reduction of COPD exacerbations in patients with severe COPD associated with chronic bronchitis and a history of exacerbations. The drug is an anti-inflammatory compound that decreases inflammation in a different manner than corticosteroids. However, roflumilast has only shown a modest improvement in lung function in COPD patients as compared to commonly used bronchodilators as it is not a direct bronchodilator. In addition, because of roflumilast's systemic exposure as an oral PDE4 inhibitor, its use has been limited due to frequent adverse side effects such as back pain, decreased appetite, diarrhea, dizziness, flu-like symptoms, headache, weight loss, nausea and vomiting.
Antibiotics
Antibiotic therapy has been shown to have a small but important effect on clinical recovery and outcome in patients with bacterial infections that resulted in an acute exacerbation of COPD. As a result, antibiotic therapy is often considered at the beginning of treatment of acute exacerbations of COPD. Hospitalized patients commonly receive intravenous treatment with an antibiotic and initial outpatient management of COPD may include oral antibiotics. However, the limited efficacy of and patient resistance to antibiotics represent significant drawbacks of this form of therapy for COPD patients.
Our Solution
We believe that RPL554, as a first-in-class, inhaled, dual inhibitor of PDE3 and PDE4, which acts as both a bronchodilator and an anti-inflammatory in a single compound, if approved, has the potential to become an

important and novel treatment and standard of care for patients with COPD. We are not aware of any therapy in a single compound in clinical development or approved by the FDA or the EMA, for the treatment of COPD that acts as both a bronchodilator and anti-inflammatory agent. Based on our clinical trials, we believe RPL554 has the potential to be a best-in-class bronchodilator for the treatment of COPD, both as a monotherapy and as an add-on therapy to existing bronchodilators.
PDEs are a family of over ten intracellular enzymes that regulate important cellular pathways in many different cell types. PDEs metabolize the critical signaling molecules cAMP and cGMP. By inhibiting PDE3 and PDE4, RPL554 increases the levels of these intracellular messengers resulting in bronchodilator and anti-inflammatory effects. Dual inhibition of PDE3 and PDE4 has been shown to be more effective than inhibition of either PDE alone at relaxing airway smooth muscle cells and suppressing the activation and functions of pro-inflammatory cells residing in the lung, both of which are commonly understood to play a significant role in COPD.
The figure below illustrates the mechanism of action of RPL554's dual inhibition of PDE3 and PDE4 in the treatment of COPD.
rpl554dualinhabitation.jpg
Mechanism of Action of RPL554 from PDE3 and PDE4 lnhibition
Previous attempts to develop PDE4 inhibitors for COPD, asthma and other indications have been limited by the resulting side effects, particularly to the gastrointestinal system, such as nausea, vomiting and weight loss. RPL554 is designed to maximize effectiveness and reduce the occurrence of adverse events by:
relying on a chemical structure that is distinct from other PDE4 inhibitors and avoids gastrointestinal and other side effects typically associated with PDE4 inhibition;
having high selectivity for PDE3 and PDE4 over other enzymes, including other PDE enzymes, and receptors to minimize off-target effects; and
enabling delivery directly to the lung by inhalation, thereby maximizing pulmonary exposure to RPL554 while minimizing systemic distribution and related adverse events.
We believe RPL554 may offer significant advantages over currently approved therapies for COPD based on the following:
Clinical benefit as an add-on therapy and as a single agent with a favorable safety profile. We have completed patient enrollment in twelve Phase 1 and 2 clinical trials for RPL554 with over 700 subjects enrolled; ten of these studies have been reported, one study is expected to report late in the first quarter of 2018 and one study is expected to report early in the second quarter of 2018. In these trials, RPL554 has been observed to result in statistically significant improvements in lung function as compared to placebo. Our clinical trials also have shown clinically meaningful and statistically significant improvements in lung

function when RPL554 is added to a number of commonly used bronchodilators as compared to all such bronchodilators administered as single agents. RPL554 has been well tolerated in our clinical trials, and has not been observed to result in the gastrointestinal or other side effects commonly associated with roflumilast, the only PDE4 inhibitor currently on the market approved for the treatment of COPD. In addition, RPL554 has not been observed to result in any cardiovascular effects, other than a small increase in heart rate at the highest doses tested.
Bronchodilator and anti-inflammatory effects in one compound.  RPL554 utilizes a novel mechanism of action that inhibits PDE3 and PDE4 to act as both a bronchodilator and an anti-inflammatory agent in a single compound. We are not aware of any therapy in a single compound in clinical development or approved by the FDA or the EMA, for the treatment of COPD that acts as both a bronchodilator and anti-inflammatory agent. Inhibition of PDE3 is largely responsible for the bronchodilatory effects of RPL554, while the inhibition of PDE4 is largely responsible for the anti-inflammatory effects. By simultaneously targeting PDE3 and PDE4, we believe that RPL554 results in a more profound effect that addresses both airway constriction and chronic inflammation, which are the hallmarks of COPD. As a result, we believe RPL554, if approved, has the potential to become an important and novel treatment and standard of caretreatments for patientsrespiratory diseases with COPD.
Inhaled administration. We are developing RPL554 as an inhaled therapy, which we believe is advantageous for the treatment of COPD patients because it delivers high concentrations of RPL554 directly to the patient’s airways, thereby potentially improving efficacy while minimizing some of the side effects resulting from the systemic exposure associated with orally administered bronchodilators and anti‑inflammatory drugs. For example, roflumilast, the only currently marketed PDE4 inhibitor approved for the treatment of COPD, is administered orally and has been associated with adverse side effects such as back pain, decreased appetite, diarrhea, dizziness, flu‑like symptoms, headache, weight loss, nausea and vomiting. In our clinical trials, RPL554 has been well tolerated and has not been associated with the typical adverse effects associated with roflumilast. In this inhaled form, we believe RPL554, if approved, would provide significant advantages over orally administered therapies and potentially lead to better and more effective treatment of COPD.
Rapid onset of action.  In our Phase 2a clinical trials for RPL554, we have observed a rapid onset of bronchodilation when RPL554 was administered as an add-on therapy to a range of currently marketed short-acting and long-acting bronchodilators: ipratropium, tiotropium and albuterol. The time of onset of action of ipratropium was 18.4 minutes, while the time of onset of action for RPL554 was approximately 14.6 minutes. When RPL554 was administered as an add-on therapy to ipratropium, the time of onset was reduced by 75% to 4.8 minutes as compared to ipratropium alone, which is similar to albuterol alone, albuterol being one of the fastest acting bronchodilators. The time of onset of action of tiotropium was approximately 37 minutes; when RPL554 was administered as an add-on therapy to tiotropium, the time of onset was reduced by 86% to approximately five minutes as compared to tiotropium alone, which again is similar to albuterol alone. When RPL554 was administered as an add-on therapy to albuterol, the time to onset was more rapid than with albuterol alone. We believe RPL554 has the potential to provide significant benefits as an add-on therapy to short- and long-acting bronchodilators in both the maintenance treatment, and the treatment of acute exacerbations, of COPD due to its effect on time of onset of action.unmet medical needs.
We are developing RPL554 in a nebulized formulation for the maintenance treatment of COPD patients and as an add-on therapy to short-acting bronchodilators and other current standard-of-care therapies for the treatment of hospitalized patients with acute exacerbations of COPD. In our planned clinical trials, we intend to explore the possibility that treatment with RPL554, when used for the maintenance treatment, has the potential to improve lung function, reduce symptoms and potentially also exacerbations, and, when used for the treatment of acute exacerbations of COPD, has the potential to reduce symptoms concomitantly with a reduction of the 30-day hospital readmission rates. No current medication has been shown to reduce this re-hospitalization rate and currently marketed long-acting bronchodilators are contraindicated for acute use in the United States. Furthermore, current therapies have not demonstrated an ability to change the progressive decline in lung function or reduce the mortality associated with COPD. We intend to explore opportunities for RPL554 for the maintenance treatment and in the hospital setting for acute exacerbations in our planned clinical trials.
In addition to our nebulized formulation of RPL554, we are developing RPL554 in both DPI and pMDI formulations for the maintenance treatment of COPD. We may also explore the development of RPL554 in these formulations for the treatment of asthma and other respiratory diseases. DPI and pMDI devices are the most common forms of drug delivery in non-hospitalized patients with COPD and are well-suited for the maintenance therapy of COPD patients.

We believe the development of DPI and pMDI formulations has the potential to significantly increase the market opportunity for RPL554, if approved, for the maintenance treatment of COPD. Following the progression of our DPI and pMDI formulation process, we plan to commence pre‑clinical studies for RPL554 in these formulations in 2018, to be followed by the first clinical trials in healthy subjects or patients with COPD.
Clinical DevelopmentLigand (formerly Vernalis) Agreement
We completed five Phase 1 and Phase 2a trials for RPL554 in Europe, dosing 105 subjects with an initial proof-of-concept solution formulation. Data from the single and multiple dose trials using our initial proof-of-concept formulation suggest that RPL554, when inhaled across a range of doses, has the potential to be an effective bronchodilator in patients with COPD and other respiratory diseases, including asthma, and has broncho-protective properties, such as reducing the hypersensitivity of asthmatic airways to inhaled irritants. In these trials, we observed RPL554 having a rapid onset of action and the magnitude of improvement in lung function, as measured by FEV1, seemed to be at least as profound as that of other commonly used and approved bronchodilator drugs. We also observed that RPL554 had a potent anti-inflammatory effect in a number of pre-clinical studies and a clinical trial.
In 2014, we developed a new nebulized suspension formulation of RPL554 for our ongoing development programs. We designed this formulation to have a broader dose range, improved PK profile and dosing regimen and neutral pH, as compared to the initial proof-of-concept formulation. This nebulized formulation of RPL554 is also stable and would be suitable for commercial use, if approved. We initiated the first Phase 1 clinical trial with this nebulized formulation in December 2014 and completed the trial in September 2015. The following table summarizes the Phase 1 and 2a clinical trials we have completed with our new nebulized suspension formulation of RPL554; our IND-opening PK clinical trial was conducted in the United States, and the other studies have been conducted outside of the United States:

Summary of Completed RPL554 Clinical Trials with New Nebulized Suspension Formulation
Trial DescriptionPatient PopulationRPL554 DosageKey Findings
Phase 2a trial to
assess the improvement in lung function, as measured by FEV1, of RPL554 as an add‑on treatment to each of albuterol and ipratropium
Completion date: February 2016
36 moderate‑to‑severe COPD patients, males and females, age 52 ‑ 70

1 location; United Kingdom
Single dose of RPL554 of 6 mg alone and as an add‑on treatment to albuterol or ipratropium
Well tolerated following single dose of 6 mg of RPL554 alone and as add‑on treatment
RPL554 alone was as effective a bronchodilator as either albuterol (200 ìg) or ipratropium (40 ìg) and was statistically significant as compared to placebo
RPL554 produced significant additive bronchodilation (>50% increase) when dosed with either albuterol (200 ìg) or ipratropium (40 ìg) as compared to albuterol or ipratropium, respectively, alone, and caused an additive and significant reduction in lung volumes and airway resistance
The time to onset of RPL554 when dosed with either albuterol (200 ìg) or ipratropium (40 ìg) was more rapid than with albuterol or ipratropium, respectively, alone
Phase 2a trial to assess the improvementin lung function, as measured by FEV1, of RPL554 as an add on treatment to tiotropium
Completion date: September 2017
30 moderate to severe COPD patients, males and females, age [52 - 70]

1 location; United Kingdom
Multiple dose (twice daily for 3 days) of 1.5mg and 6mg
Well tolerated following multiple doses of 1.5mg and 6 mg of RPL554 alone and as add‑on treatment
RPL554 produced significant additive bronchodilation (>100ml increase) when dosed with tiotropium (18 mcg) as compared to tiotropium alone, and caused an additive and significant reduction in lung volumes and airway resistance
The time to onset of RPL554 when dosed with tiotropium (18 mcg) was more rapid than with albuterol or ipratropium, respectively, alone
Phase 2a trial to
assess the effect of single doses of RPL554 compared to albuterol and placebo on lung function, as measured by FEV1, of patients with chronic asthma
Completion date: January 2016
29 chronic asthmatic patients, males and females, age 20 ‑ 62

2 locations; United Kingdom and Sweden
Single dose of 0.4 mg to 24 mg
Well tolerated following single dose of 0.4 mg to 24 mg
Improvement in lung function, as measured by FEV1, observed with a magnitude that was comparable to the maximum effect observed with a dose of 7.5 mg of nebulized albuterol, or three times the recommended dose of albuterol
Phase 1 trial to
assess the safety, tolerability and PK profile of single and multiple inhaled doses of RPL554 in healthy volunteers and stable COPD subjects

Completion date: September 2015
Part A: 50 (35 RPL554 / 15 placebo) healthy subjects, males, age 19 ‑ 48

Part B: 30 (21 RPL554 / 9 placebo) healthy subjects, males, age 19 ‑ 46

Part C: 32 (23 RPL554 / 9 placebo) moderate COPD patients, males and females, age 49 ‑ 73

1 location; United Kingdom
Part A: Single dose of 1.5 mg to 24 mg

Part B: Multiple dose (twice daily for 5.5 days) of 6 mg to 24 mg

Part C: Multiple dose (twice daily for 5.5 days) of 1.5 mg to 12 mg
Improvement in lung function, as measured by FEV1, observed in healthy subjects and COPD patients
Part A: RPL554 was well tolerated and there was a dose dependent increase in lung function, as measured by FEV1, of up to 360 mL (9%) from baseline
Part B: RPL554 was well tolerated and there was a sustained increase in FEV1
Part C: RPL554 was well tolerated and there was a significant increase in lung function, as measured by FEV1, of up to 360 mL (24%) from baseline, with a duration of action of 12 hours
Phase 1 trial to assess the relative oral bioavailability of RPL55412 healthy male volunteers. 1 location in USSinge dose of RPL554 6mg given with, or without, a charcoal block to prevent absorption of RPL554 from the GI tractDemonstrated a low oral bioavailability (GI absorption) of RPL554 of 10.4%. The terminal serum half life of RPL554 was 11.9 hours. RPL554 was well tolerated in this study.

Phase 2a Clinical Trials
We have completed two Phase 1 and four Phase 2a clinical trials using our new nebulized suspension formulation of RPL554.

In February 2016, we completed a single-dose, double-blinded, placebo-controlled, six-way cross-over Phase 2a clinical trial for RPL554 conducted in the United Kingdom. A total of 36 patients were randomized to receive each of the six treatments, which were albuterol, ipratropium, RPL554, placebo, RPL554 as an add-on therapy to albuterol and RPL554 as an add-on therapy to ipratropium. The primary objective of this trial was to establish the improvement in lung function, as measured by FEV1, of RPL554 as an add-on therapy to albuterol (200 mg), as an add-on therapy to ipratropium (40 mg) and as a single agent, each as compared to standard doses of each of albuterol and ipratropium alone and to placebo. The testing dose level for RPL554 was 6 mg. The secondary objective of this trial was to measure the change in residual lung volume, a measure of the volume of air trapped in the lung, airway conductance, a measure of the ease with which air moves down the airways, time of onset of action and safety and tolerability of RPL554.
In this clinical trial, RPL554 produced clinically meaningful and statistically significant improvement in lung function, as measured by FEV1, as an add-on therapy to standard doses of each of albuterol and ipratropium as compared to standard doses of either bronchodilator alone. In this clinical trial, we observed the effect size, or peak improvement minus placebo improvement, was 51% higher for the add-on therapy of RPL554 with albuterol as compared to albuterol alone, and 66% higher for the add-on therapy of RPL554 with ipratropium as compared to ipratropium alone. We also observed in this trial that RPL554 as a single agent produced numerically greater improvements in lung function, as measured by FEV1, as compared to albuterol or ipratropium alone, and statistically significant improvements as compared to placebo. These results are illustrated by the figure below.
a6waycrossoverchart190218.jpg

In addition, patients treated with RPL554 as a single agent experienced numerically greater improvements in residual lung volume as compared to albuterol or ipratropium alone, and statistically significant improvements as compared to placebo. The add-on therapy of RPL554 with albuterol or ipratropium caused a statistically significant reduction in residual lung volume as compared to albuterol or ipratropium alone, suggesting that RPL554 treatment may reduce dyspnea, or shortness of breath, a major debilitating symptom of COPD.
Another important parameter in COPD is the resistance of the airways to airflow. The inverse of this is airway conductance. Similar to the effect on residual lung volume, patients treated with RPL554 as a single agent experienced numerically greater increases in airway conductance as compared to each of albuterol and ipratropium, and statistically significant improvements as compared to placebo. We also observed, that the administration of RPL554 as an add-on therapy to either albuterol or ipratropium resulted in a statistically significant increase in airway conductance as compared to albuterol or ipratropium alone.


In this trial, the time of onset of action of ipratropium was approximately 20 minutes. The time of onset of action for RPL554 alone was approximately 15 minutes. When RPL554 was administered as an add-on therapy to ipratropium, the time of onset was reduced to approximately 5 minutes, which is similar to albuterol. In both cases, RPL554 as an add-on therapy resulted in a statistically significant reduction in time of onset as compared to ipratropium or albuterol alone.
Consistent with prior trials, RPL554 was well tolerated both alone and as an add-on therapy and was not observed to increase the incidence of any adverse event over standard bronchodilators when used alone. In addition, we did not observe the gastrointestinal or other side effects associated with roflumilast, the only PDE4 inhibitor currently on the market approved for the treatment of COPD. In this trial, RPL554 had no observed effect on cardiac function as measured by electrocardiograms, including QT intervals, a measure of time between certain waves in the heart's electrical cycle and measure of a potential cardiovascular adverse event. Finally, the serum levels of RPL554 were not affected by use of albuterol or ipratropium.In September 2017, we completed a multiple‑dose, double‑blinded, placebo‑controlled, three‑way cross‑over Phase 2a clinical trial for RPL554 conducted in the United Kingdom. A total of 30 patients were randomized to receive each of the three treatments, which were in each case tiotropium 18 mcg dosed once a day, administered together with an add-on of placebo, RPL554 dosed at 1.5 mg or RPL554 dosed at 6.0 mg (all three add-on treatments were dosed twice per day). The primary objective of this trial was to establish the improvement in lung function, as measured by FEV1, of RPL554 as an add‑on therapy to tiotropium 18 mcg as compared to placebo and tiotropium. The testing dose levels for RPL554 were 1.5 mg and 6 mg. The secondary objective of this trial was to measure the change in residual lung volume, a measure of the volume of air trapped in the lung, airway conductance, a measure of the ease with which air moves down the airways, time of onset of action and safety and tolerability of RPL554.
In this clinical trial, RPL554 produced clinically meaningful and statistically significant improvement in lung function, as measured by FEV1, as an add‑on therapy to standard doses of tiotropium as compared to standard doses of tiotropium alone. In this clinical trial, we observed the peak improvement was 104 ml higher for the add‑on therapy of 1.5 mg RPL554 and 127 ml higher for the add-on therapy of 6 mg RPL554, in each case as compared to tiotropium alone. These results are illustrated by the figure below.
a202fev1baseline190218a01.jpg
Improvement in Lung Function
In addition, patients treated with both 1.5 mg or 6 mg RPL554 as an add-on to tiotropium experienced statistically significant improvements in residual lung volume as compared to placebo, suggesting that RPL554 treatment may

reduce dyspnea, or shortness of breath, a major debilitating symptom of COPD. This reduction in residual lung volume as measured in liters is illustrated in the figure below.
a202changeinresidualvolume.jpg
In this trial, the time of onset of action of tiotropium was approximately 37 minutes. When RPL554 was administered, either at 1.5 mg or at 6 mg, as an add‑on therapy to tiotropium, the time of onset was reduced to less than 5 minutes. In both cases, RPL554 as an add‑on therapy resulted in a statistically significant reduction in time of onset as compared to tiotropium alone. The time of onset in minutes is shown in the figure below.

a202timetoonset190218.jpgConsistent with prior trials, RPL554 was well tolerated as an add‑on therapy and was not observed to increase the incidence of any adverse event over tiotropium when used alone. In addition, we did not observe the gastrointestinal or other side effects associated with roflumilast, the only PDE4 inhibitor currently on the market approved for the treatment of COPD. In this trial, RPL554 had no observed effect on cardiac function as measured by electrocardiograms, including QT intervals, a measure of time between certain waves in the heart’s electrical cycle and measure of a potential cardiovascular adverse event. Finally, the serum levels of RPL554 were not affected by use of tiotropium.
In January 2016, we completed a single-dose, double-blind, placebo-controlled, seven-way cross-over Phase 2a dose-finding trial of nebulized RPL554 in 29 male and female chronic asthma patients conducted in Sweden and the United Kingdom. The testing dose levels of RPL554 ranged from 0.4 mg to 24 mg, a sixty-fold range. The primary objective of this trial was to establish the improvement in lung function, as measured by FEV1, of RPL554 as compared to albuterol and placebo. The secondary objective of this study was to assess the safety and tolerability of RPL554.
In this trial, all doses of RPL554 showed a dose-dependent and statistically significant improvement in lung function, as measured by FEV1, with a p-value of less than 0.001, as compared to placebo. The maximum improvement in lung function, as measured by FEV1, of RPL554 observed in this trial was comparable to the maximum effect observed with a dose of 7.5 mg, or three times the recommended dose, of nebulized albuterol. In this trial, RPL554 was well tolerated and there were no serious adverse events or adverse events of concern at any dose. RPL554 treatment resulted in no gastrointestinal adverse events or cardiovascular events of concern. The figure below illustrates improvement in lung function, as measured by FEV1, as compared to albuterol and placebo.

improvementinlungfunctovea02.jpg
Phase 1 Clinical Trials
In September 2017 we reported top-line data from an IND-opening single-dose pharmacokinetic, or PK, trial in 12 healthy volunteers in the United States. A PK trial involves the study of the process of bodily absorption, distribution, metabolism and excretion of a drug. With any inhaled or nebulized medication, a portion of the substance is deposited in the mouth and then swallowed by the patient. The results showed that in the study subjects only 10.4 percent of the inhaled dose entered the bloodstream via the gastrointestinal tract. The low oral bioavailability of nebulized RPL554, as demonstrated in the study, is consistent with optimal inhaled delivery of medications for the treatment of COPD and asthma. The half life of the drug was found to be 11.9 hours, which is consistent with prior studies, and demonstrates that RPL554 is appropriate to be studied as a twice daily medication. Therefore, the results from this study confirmed that inhaled RPL554 is an appropriate form of administration for patients.
In September 2015, we completed a Phase 1 clinical trial that had three parts consisting of a single ascending dose, or SAD, trial in 50 healthy male subjects, a multiple ascending dose, or MAD, trial in 30 healthy male subjects and a MAD trial in 32 male and female patients with COPD. Doses in the SAD trial and the MAD trial with healthy subjects ranged from 6 mg to 24 mg, and doses in the MAD trial with COPD patients ranged from 1.5 mg to 12 mg. Each of the MAD trials continued for five and a half days with twice-daily dosing.
The primary objective of the SAD and MAD trials in healthy subjects was to assess the safety and tolerability of single and multiple doses of RPL554. The secondary objective of these trials was to measure the improvement in lung function, as measured by FEV1, in healthy subjects receiving RPL554 as compared to placebo.
In the SAD and MAD trials in healthy subjects, RPL554 was well tolerated. In these trials, we also observed a longer residence time in the lung, lower peak plasma concentrations and a longer plasma half-life (10 to 12 hours) than our initial proof-of-concept formulation of RPL554, suggesting that twice-daily dosing is appropriate. The lung function testing in the SAD trial showed a dose-dependent improvement in lung
function, as measured by FEV1, in these healthy individuals, despite none of them having asthma or COPD, as illustrated in the figure below.

improvementinlungfunctionfev.jpg
Similarly, in the MAD trial in 30 healthy male subjects, RPL554 continued to show an increase in lung function compared to baseline on each day of the study, as measured by FEV1, in these healthy individuals, despite none of them having asthma or COPD.
The primary objective of the third part of the trial, which was a MAD trial in 32 patients with moderate COPD, was to assess safety and tolerability and measure the PK profile of RPL554 in COPD patients receiving RPL554 as compared to placebo. The secondary objective was to assess the improvement in lung function, as measured by FEV1, in these patients. In this clinical trial, RPL554 was well tolerated at all doses with no reports of serious adverse events or adverse events of concern. Specifically, we did not observe the gastrointestinal or other side effects associated with roflumilast, the only PDE4 inhibitor currently on the market approved for the treatment of COPD, and RPL554 was not observed to have any effect on cardiac function as measured by electrocardiograms, including QT intervals, and Holter monitoring, which uses a portable device that continuously measures and records the heart's activity for at least 24 hours. We also observed a statistically significant increase in lung function, as measured by FEV1, with a p-value of less than 0.05, in patients receiving RPL554 in all dose groups as compared to placebo. The figure below illustrates a consistent increase in lung function compared to baseline with no evidence of reduction in effect level, as measured by FEV1, on each day of the study.

improvementinlungfunctovea01.jpg
The figure below, which represents the effects of the final dose after five and a half days of treatment with RPL554, shows that patients with moderate COPD that were administered RPL554 experienced an improvement in lung function, as measured by FEV1, and that the improvement peaked at two hours and continued through the 12-hour measurement period.
improvementinlungfunctionove.jpg

In May 2013, we completed a Phase 1 clinical trial in which 21 healthy evaluable subjects were treated with either our initial proof-of-concept formulation of RPL554 or placebo once daily for six days before airway challenge with aerosolized LPS. Subjects that were administered RPL554 had significantly lower absolute numbers of neutrophils in sputum collected six hours after LPS challenge, and a significant reduction in the absolute numbers of other inflammatory cells, including lymphocytes, macrophages and eosinophils, at the same time point. These observations suggest that RPL554 also has the potential to target the chronic inflammatory processes in COPD. The figure below illustrates the reduction in inflammatory cells observed in this trial as measured by absolute cell counts.
reductionininflammatorycells.jpg
Summary of Safety Results
RPL554 was well tolerated in each of our ten Phase 1 and 2a clinical trials that has been reported, at dose levels ranging from 0.4 mg to 24 mg. RPL554 was well tolerated both when administered alone and as an add-on therapy to commonly used bronchodilators. In our completed clinical trials, we did not observe any gastrointestinal adverse events or cardiovascular effects, other than a small increase in heart rate at the highest doses tested. RPL554 had no observed effect on cardiac function as measured by electrocardiograms, including QT intervals, a measure of time between certain waves in the heart's electrical cycle and measure of a potential cardiovascular adverse event. In addition, we did not observe an increase in incidence of any adverse event over commonly used bronchodilators when RPL554 was used alone. In these trials, some subjects experienced mild to moderate adverse reactions, including headache, dizziness, cough, heart palpitation, nausea, dry mouth, parenthesis (tingling), nasopharyngitis (throat irritation) and rash, which occurred with comparable frequency to placebo.
The figure below illustrates the effects of RPL554 and albuterol on serum levels of potassium:

effectonserumlevelsofpotassi.jpg
Clinical Development Plans
We plan to conduct further trials to support our plans to develop RPL554 in a nebulized formulation for the maintenance treatment of COPD and as an add‑on therapy to short‑acting bronchodilators and other commonly used therapies for the treatment of hospitalized patients with acute exacerbations of COPD. We also are developing RPL554 in both DPI and pMDI formulations for the maintenance treatment of COPD. In addition, we may explore the development of RPL554 in these formulations for the treatment of asthma and other respiratory diseases.
Maintenance treatment of COPD. In July 2017 we announced the commencement of a Phase 2b dose-ranging study for RPL554 for the maintenance treatment in approximately 400 patients with COPD in Europe. The Phase 2b clinical trial is a four-week double-blind placebo-controlled parallel group trial. The primary endpoint is improvement in lung function, as measured by FEV1, after dosing with RPL554 or placebo. We expect to report top-line data from the Phase 2b trial early in the second quarter of 2018.
The study investigates the effect of 4 weeks of twice daily treatment of four different doses of RPL554 (0.75mg, 1.5mg, 3mg and 6mg) or placebo, each administered twice per day, in patients with moderate to severe COPD. Patients will be instructed to wash out any long-acting bronchodilators but can continue with an inhaled corticosteroid if maintained at the same dose throughout the study. Albuterol may be used as rescue medication.
The primary outcome measure is the effect of RPL554 or placebo on change from baseline in peak FEV1 over 4 weeks.
Secondary outcome measures include various additional measurements of lung function, COPD symptoms based on a range of different scales and methodologies, and tolerability.
Following completion of this ongoing 4-week Phase 2b clinical trial we will evaluate and possibly adjust the overall and near-term development plans for RPL554. Depending on the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical

trials, particularly with nebulized RPL554 for the maintenance treatment of COPD. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD in hospitalized patients and as a treatment for CF patients.
pMDI and DPI development for treatment of COPD patients. In addition to our nebulized formulation of RPL554, we are developing RPL554 in both DPI and pMDI formulations for the maintenance treatment of COPD. In addition, we may explore the development of RPL554 in these formulations for the treatment of asthma and other respiratory diseases. DPI and pMDI inhaler devices are the most common forms of drug delivery in non‑hospitalized patients with COPD and are well‑suited for the maintenance therapy of COPD patients. We believe the development of DPI and pMDI formulations has the potential to significantly increase the market opportunity for RPL554, if approved, for the maintenance treatment of COPD. Following the progression of our DPI and pMDI formulation process, we plan to commence pre‑clinical studies for RPL554 in these formulations in 2018, to be followed by the first clinical trials in healthy subjects or patients with COPD.

Treatment of hospitalized patients with acute exacerbations of COPD. We plan to commence a Phase 2 clinical trial in the United States for RPL554 for the treatment of acute COPD patients requiring hospitalization. We plan this Phase 2 clinical trial as a double‑blind, placebo‑controlled, parallel group trial starting during the patients’ hospitalization for COPD exacerbation and continuing for 30 days after discharge. RPL554 will be added to the standard‑of‑care treatment these patients receive. This trial will be designed to evaluate the efficacy and safety of RPL554 when administered for patients experiencing a COPD exacerbation requiring hospitalization. Depending on the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical trials, particularly with nebulized RPL554 for the maintenance treatment of COPD. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD in hospitalized patients and as a treatment for CF patients.
Additional Development Programs
RPL554 for the Treatment of Cystic Fibrosis
Overview
We are evaluating RPL554 for the treatment of CF. We believe RPL554, if approved, has the potential to be an important and novel treatment and standard of care for patients with CF based on its favorable bronchodilator and anti‑inflammatory properties observed to date.
CF Background
CF is the most common fatal inherited disease in the United States and Europe. CF causes impaired lung function and is commonly associated with repeat and persistent lung infections due to the inability to clear thickened mucus from the lung. This condition often results in frequent exacerbations and hospitalizations. There is no cure for CF and the median age of death for CF patients is 37 years. CF is considered a rare, or orphan, disease by both the FDA and the EMA. According to the Cystic Fibrosis Foundation, more than 30,000 people in the United States and more than 70,000 people worldwide are living with CF and approximately 1,000 new cases of CF are diagnosed each year. We plan to seek orphan drug designation for RPL554 in treating CF. CF patients require lifelong treatment with multiple daily medications, frequent hospitalizations and, ultimately, lung transplants in some end‑stage patients. The quality of life for CF patients is compromised as a result of spending significant time on self‑care every day and frequent outpatient doctor visits and hospitalizations. CF patients take an average of seven medications daily. In the 12‑month period ended June 30, 2016, global sales of drugs currently indicated for CF totaled $4.1 billion. The global market for CF drugs is expected to increase to $7.0 billion in 2020.

CF is caused by mutations in a gene that encodes the CFTR protein. The CFTR protein channel regulates the movement, or efflux, of specific ions such as chloride in and out of the cells of organs like the lungs, pancreas and gastrointestinal tract. Through regulation of these ions, the amount of salts in the fluid both inside and outside the cell remains balanced. In CF patients, however, the CFTR protein is defective and cannot perform its normal function of transporting ions across the cell membrane, resulting in an environment characterized by thick mucus in vital organs such as the lung, the pancreas and the gastrointestinal tract.
The lack of functional CFTR in CF patients is particularly problematic in the lungs, where the build‑up of thick mucus obstructs parts of the lung, allows bacteria to grow unfettered and impairs the functionality of the local immune system. Of all the manifestations of CF, chronic pulmonary disease is the most critical and is characterized by a combination of airway obstruction, infection and inflammation such that more than 90% of all CF patients die of respiratory failure, and thus have a shortened life expectancy.
Current Treatment Landscape of CF
Until recently, approved therapies to treat CF patients have been designed to treat the symptoms of CF, by preventing and controlling infections that occur in the lungs, rather than address the underlying cause. Accordingly, antibiotics are frequently used along with mucus‑thinning drugs. A significant portion of CF patients are prescribed bronchodilators, although no bronchodilator is currently approved by the FDA for the treatment of patients with CF. For patients with certain gene mutations, a new medication called ivacaftor, or Kalydeco, which is a CFTR potentiator, is used to improve CFTR function and thereby improve lung function. A combination drug consisting of ivacaftor and lumacaftor, or Orkambi, which is a CFTR corrector, can be used in a somewhat broader group of CF patients with partly different gene mutations. While not indicated specifically for CF, high doses of ibuprofen also have been studied in CF patients and have demonstrated some anti‑inflammatory efficacy resulting in a beneficial effect on the annual rate of decline of FEV1. However, CF patients commonly experience adverse events from ibuprofen, including gastrointestinal and liver side effects, and as a result it is infrequently used. However, it demonstrates that an anti‑inflammatory medication in CF might change the course of the disease. There is currently no anti‑inflammatory medication which is approved to treat the underlying inflammation in CF.
Despite the recent approval of novel targeted therapies for patients with CF, only a subset of CF patients is indicated for treatment with these two therapies. As a result, we believe CF remains a significant unmet medical need. If we obtain orphan drug designation and FDA approval for this indication, RPL554 may be entitled to orphan drug exclusivity, which means the FDA may not approve any other application to market the same drug for this indication for a period of seven years, except in limited circumstances.
Our Solution
By inhibiting PDE3 and PDE4, RPL554 increases the levels of cAMP and CGMP, resulting in bronchodilator and anti‑inflammatory effects, and stimulates the CFTR. CFTR stimulation leads to improved electrolyte balance in the lung and thinning of the mucus, which facilitates mucociliary clearance and leads to improved lung function and potentially a reduction in lung infections. Dual inhibition of PDE3 and PDE4 has been observed to be more effective than inhibition of either PDE alone at relaxing airway smooth muscle cells and suppressing the activation and functions of pro‑inflammatory cells residing in the lung, both of which are commonly understood to play a significant role in CF.
In our pre‑clinical studies, RPL554 has been observed to stimulate the CFTR, as well as increase ciliary beat frequency, a key parameter determining the rate of mucus clearance, in primary airway cells and to improve electrolyte balance in the lung. Based on available data, we believe that RPL554 has the potential to inhibit deleterious inflammation, reduce airway obstruction through bronchodilation and enhance mucociliary clearance through stimulation of the CFTR on airway epithelial cells, thereby making it an attractive therapy for the treatment of CF.
Pre‑clinical Studies
In a series of pre‑clinical studies we conducted, RPL554 was observed to stimulate the CFTR. As shown in the figure below, administration of increasing concentrations of RPL554 resulted in improvement in CFTR function, as measured by ion currents in a human bronchial‑epithelial cell line.


stimulationcftr.jpg
Furthermore, in a pre-clinical study comparing RPL554 to Kalydeco, both compounds increased CFTR activity in cells from a CF patient with the mutation that is appropriate for treatment with Kalydeco. When RPL554 was administered before Kalydeco, it had an additive effect, which was smaller when the compounds were delivered in the reverse order. This stimulatory effect on the CFTR, as measured by ion currents, is shown in the figure below.

stimulationofcftr.jpg
In addition, in a pre-clinical study RPL554 was observed to increase ciliary beat frequency in primary human airway cells at similar levels to the PDE4 inhibitor, roflumilast. We believe RPL554 may increase ciliary beat frequency and therefore promote mucociliary clearance in CF patients. This is illustrated in the figure below.

increasedcilarybeatfrequency.jpg
We believe this pre-clinical data, combined with the anti-inflammatory and bronchodilator effects of RPL554, suggest that RPL554 is appropriate for clinical trials for, and may prove effective in the treatment of, CF patients.
Clinical Development Plans
In February 2017, we commenced a Phase 2a single-dose trial in the United Kingdom evaluating RPL554 in up to ten CF patients in the United Kingdom. This trial will evaluate the PK and PD profile and tolerability of RPL554 in patients with CF, as well as the tolerability of the compound. We expect to report top-line data from this trial in the first quarter of 2018. The results of this trial will support dose selection for a proof-of-concept Phase 2b trial in Europe in patients with CF. Currently we plan to commence this proof-of-concept trial in 2018.{add more details about the trial design and dosing}
Depending on the data from all clinical trials conducted with RPL554 to date, future interactions with regulatory authorities and our commercial assessment of different development options for RPL554 we will consider any opportunity to focus and accelerate our development plans for RPL554, including proceeding more rapidly towards Phase 3 clinical trials, particularly with nebulized RPL554 for the maintenance treatment of COPD. Earlier entry into Phase 3 clinical trials with nebulized RPL554 for the maintenance treatment of COPD could require us to focus our resources and funding initially on the maintenance market as a priority in the short term over progressing our planned trials to evaluate nebulized RPL554 as a treatment for acute exacerbations of COPD hospitalized patients and as a treatment for CF patients.
The table below summarizes our planned clinical trials for RPL554 for the treatment of CF.

Trial Description
Trial
Design
Patient
Population
Primary
Endpoints
Secondary
Endpoints
Anticipated
Milestones
Phase 2a PK and PD trial to evaluate tolerability in CF patients and examine effect on lung function and inflammatory biomarkers
Double-blind, placebo-controlled, cross-over trial
Dosing: Single dose
Up to 10 CF patients, age 18 years and older, with FEV1 > 40% of expected levels
PK profile
Safety
FEV1: peak and AUC
Commenced in March 2017, with top-line data expected late in the first quarter of 2018
Phase 2b proof-of-concept trial to determine the efficacy and safety of RPL554 in CF patients
Double-blind, placebo-controlled, three way, parallel group trial
Dosing: Multiple dose (twice-daily)
CF patients, age 18 and older, with FEV1 of > 40% of expected levels
All CFTR mutations
FEV1: peak
FEV1 trough
Inflammation biomarkers
Exacerbations
Safety
Planned commencement in 2018
Vernalis Agreement
In February 2005, Rhinopharma Limited, or Rhinopharma, entered into an assignment and license agreement with Vernalis Development Limited, or Vernalis which we(in October 2018, Vernalis was acquired by, and became a wholly owned subsidiary of, Ligand Pharmaceuticals, Inc., or Ligand). We refer to the assignment and license agreement as the VernalisLigand Agreement. In 2006, we acquired Rhinopharma and all of its rights and obligationsliabilities under the VernalisLigand Agreement. Pursuant to the VernalisLigand Agreement, VernalisLigand has assigned to us all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds, or the VernalisLigand Patents. We cannot further assign the VernalisLigand Patents to a third party without Vernalis'Ligand's prior consent. VernalisLigand also granted to us an exclusive, worldwide, royalty-bearing license under certain VernalisLigand know-how to develop, manufacture and commercialize products, or the Licensed Products, based on PDE inhibitors developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds, including RPL554,ensifentrine, which we refer to as the Program IP, in the treatment of human or animal allergic or inflammatory disorders. Pursuant to the VernalisLigand Agreement, we must maintain the VernalisLigand Patents and use commercially reasonable and diligent efforts to develop and commercialize the Licensed Products.
Under the VernalisLigand Agreement, we are obligated to pay VernalisLigand a milestone payment of £5.0 million upon the first approval of any regulatory authority for the commercialization of any Licensed Product, and a portion equal to a percentage in the mid twentiesmid-twenties of any consideration received from any of our sublicensees for VernalisLigand Patents or VernalisLigand know-how, excluding royalties. We must also pay Vernalis,Ligand, on a Licensed Product-by-Licensed Product and country-by-country basis, a low to mid-single digit percentage royalty based on net sales of each Licensed Product for a period beginning with the first commercial sale of such Licensed Product in a country and ending on the later of the expiration of a certain number of years after such first commercial sale and if applicable the expiration of the last to expire valid claim in the VernalisLigand Patents covering the development, manufacture or commercialization of such Licensed Product in such country. Prior to the first commercial sale of each Licensed Product, such royalties also are due in the same percentages for any named patient sales.
The VernalisLigand Agreement continues until terminated by either party in accordance with its terms. Either party may terminate the VernalisLigand Agreement for an uncured material breach, bankruptcy or insolvency of the other party. We may terminate the VernalisLigand Agreement upon 90 days' prior written notice. VernalisLigand may terminate the VernalisLigand Agreement if we notify VernalisLigand of our intention to abandon any VernalisLigand Patents or allow any VernalisLigand Patents to lapse. Upon termination of the VernalisLigand Agreement, we must cease use of any Program IP and assign the VernalisLigand Patents and any improvements thereto back to Vernalis.Ligand.
Manufacturing
We have little experience in product candidate formulation or manufacturing, and no in-house manufacturing capability. We rely on, and expect to continue to rely, on third-party contract manufacturing organizations, or CMOs, for the supply of current good manufacturing practices, , or cGMP, compliant clinical trial materials of RPL554ensifentrine, and any future product candidates, as well as for commercial quantities of RPL554ensifentrine and any future product candidates, if approved. We currently do not have any agreements for the commercial production of raw materials.ensifentrine. While we may contract with other CMOs in the future, we currently contract with only one pharmaceuticals CMO for the manufacture of RPL554ensifentrine drug substance. For RPL554ensifentrine drug product in our nebulized formulation, we currently have one CMO.CMO for the manufacture in glass vials and one CMO for the manufacture of the same nebulized formulation in plastic ampules. Similarly, we currently have one CMO for our DPI development and manufacturing program and one CMO for our

pMDI MDI development and manufacturing program.Weprogram. We believe that the RPL554ensifentrine manufacturing processes can be transferred to a number of other CMOs for the production of clinical and commercial supplies of RPL554ensifentrine in the ordinary course of business.
Manufacturing of any product candidate is subject to extensive regulations that impose various procedural and documentation requirements governing record-keeping, manufacturing processes and controls, personnel, quality control, quality assurance, and quality assurance,by design among others. We expectrequire that all of our CMOs will manufacture RPL554 underensifentrine in accordance with cGMP conditions. cGMP is a regulatory standard for the production of pharmaceuticals to be used in humans.guidelines.
RPL554 for nebulized administration is currently presented in a glass vial with a flip, tear-up cap. This format is adequate for clinical trials but patient acceptance in a commercial setting is expected to be improved by a switch to presenting the suspension formulation of RPL554 in plastic ampules. We will investigate the feasibility to manufacture and supply RPL554 nebulized suspension formulation in plastic ampules. In addition to patient acceptance, switching to plastic ampules may also be more cost-effective for manufacturing in larger volumes. A decision on presentation form will be made before the start of Phase 3 clinical trials; during this evaluation process we will also review and optimize the nebulized suspension formulation as part of a quality by design program.
Commercialization, Sales and Marketing
We have not yet defined our sales, marketing or commercialization strategybelieve ensifentrine, if successfully developed and approved, has the potential to address the unmet clinical need in a number of commercially attractive respiratory conditions and markets including the treatment of COPD in the maintenance and acute settings, asthma and CF. Based on market research, we believe that the key markets for RPL554.ensifentrine, if approved, are the United States, European Union and China. Our commercial strategy may includepriority is to develop and launch ensifentrine for the use of strategic collaborators, distributors,United States. COPD maintenance setting, initially delivered via a contract sales force, orstandard jet nebulizer.
Ensifentrine's clinical profile offers the establishment of our own commercial and specialty sales force. We planpotential to further evaluatereduce COPD symptoms and exacerbations when added on top of current therapies. US physicians, responding to Verona Pharma market research, reported a willingness to prescribe ensifentrine on top of current therapies including patients currently receiving maximum available dual bronchodilatory therapy (LAMA plus LABA, with or without ICS). We believe 3 million US COPD patients are currently treated with dual bronchodilatory therapy, and of these alternativesapproximately 1.2 million have uncontrolled disease and continue to experience debilitating symptoms of breathlessness and flare ups of disease called 'exacerbations', requiring hospitalization.
Competition
Ensifentrine is a unique, first-in-class drug candidate with both bronchodilator and anti-inflammatory properties. No other dual PDE3 and PDE4 inhibitor is on the market nor in clinical development, as far as we continue the clinical development of RPL554.
Competition
Wecan ascertain. Generically, we consider RPL554'sensifentrine's current closest potential competitors in the nebulized maintenance treatment of COPD in the U.S. market to be Brovana, a long-acting beta2-agonist bronchodilator marketed by Sunovion,bronchodilators (Brovana® and Perforomist, aPerforomist®) and long-acting beta2-agonist bronchodilator marketed by Mylan. Neitheranti-muscarinic bronchodilators (Yupelri® and Lonhala®Magnair®). However, neither class of drug however, provides an anti-inflammatory effect. We consider RPL554'sensifentrine's current closest potential competitors in the DPI/MDI maintenance treatment of COPD to be Symbicort,Symbicort®, a combination of a long-acting beta2-agonist bronchodilator and inhaled corticosteroidICS marketed by AstraZeneca Spiriva,plc, Spiriva®, a long-acting anti-muscarinic bronchodilator marketed by Boehringer Ingelheim, Advair,IngelheimGmbH, Advair®, a combination of a long-acting beta2-agonist bronchodilator and inhaled corticosteroidICS marketed by GlaxoSmithKline plc, or GlaxoSmithKline, Utibron Neohaler,Neohaler®, a combination of a long-acting beta2-agonist and long-acting anti-muscarinic bronchodilator marketed by Novartis Breo,International AG, Breo®, a combination of a long-acting beta2-agonist bronchodilator and inhaled corticosteroidICS marketed by GlaxoSmithKline, and Anoro,Anoro®, a combination of a long-acting beta2-agonist bronchodilator and long-acting anti-muscarinic bronchodilator marketed by GlaxoSmithKline. Additional new therapies in development or recently approved include triple combinationsA triple-combination therapy of existing therapies such as a long-acting anti-muscarinic bronchodilator,LAMA, a long-acting beta2-agonist bronchodilatorLABA and an inhaled corticosteroid; such triple combinations have beenICS, developed by GlaxoSmithKline and Chiesi and areFarmaceutici S.p.A. has been approved in USthe United States and EU.the European Union and AstraZeneca also has a tripletriple-therapy combination product that was approved in development.China in December 2019.
We compete directly with biotechnology and pharmaceutical companies that focus on the treatment of respiratory diseases. We also face competition from academic research institutions, governmental agencies and other various public and private research institutions. We expect to face increasingly intense competition as new technologies become available. Any product candidates, including RPL554,ensifentrine, that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available in the future.
Many of our competitors have significantly greater financial, manufacturing, marketing, drug development, technical and human resources than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller or early stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining top qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.
The key competitive factors affecting the success of RPL554,ensifentrine, if approved, are likely to be its efficacy, safety, dosing convenience, price, the effectiveness of companion diagnostics in guiding the use of related therapeutics, the level of generic competition and the availability of reimbursement from government and other third-party payors.
Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, less expensive, more convenient or easier to administer, or have fewer or less severe

side effects than any products that we may develop. Our competitors may also obtain FDA, EMA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market. Even if RPL554ensifentrine achieves marketing approval, it may be priced at a significant premium over competitive products if any have been approved by then or be priced at a level that makes it difficult for us to supply productensifentrine in a cost-efficient and profitable way.

Intellectual Property
We strive to protect and enhance the proprietary technologies, inventions and improvements that we believe are important to our business, including seeking, maintaining and defending patent rights, whether developed internally or licensed from third parties. Our policy is to seek to protect our proprietary position by, among other methods, pursuing and obtaining patent protection in the United States and in jurisdictions outside of the United States related to our proprietary technology, inventions, improvements, platforms and our product candidates that are important to the development and implementation of our business.
As of February 6, 2018,2020 our patent portfolio consisted of seventen issued U.S.US patents, four pending U.S.US patent applications, 20thirty-seven issued foreign patents and 52fifty pending foreign applications including one patent application made under the PCT.Patent Cooperation Treaty. These patents and patent applications include claims directed to RPL554ensifentrine composition of matter, new dosage formulations and a crystalline polymorph, as well as methods of making and using RPL554ensifentrine in the treatment of respiratory diseases, with expected expiry dates between 2020 and 2037.2040.
The patent portfolio relating to RPL554ensifentrine includes eightten patent families:
The first of these patent families relates to RPL554 per se. As of February 6, 2018, this patent family includes granted patents in Australia, Brazil, Canada, China, Europe, Japan, Mexico as well as four granted patents in the United States. We expect patents in this family to expire in March 2020.
The second of these patent families relates to a crystalline polymorph of RPL554. As of February 6, 2018, this patent family included granted patents in Australia, Canada, China, Europe, Indonesia, Japan, Malaysia, Mexico, Philippines, Russia, the United States and Taiwan and patent applications in Israel, Japan, South Korea, Thailand and the Gulf Cooperation Council. We expect patents in this family to expire in August 2031.
The third of these patent families relates to the combination of RPL554 with a beta-adrenergic receptor agonist. As of February 6, 2018, this patent family included granted patents Europe and the United States and a patent application in Canada. We expect patents in this family to expire in March 2034.
The fourth of these patent families relates to the combination of RPL554 with a muscarinic receptor antagonist. As of February 6, 2018, this patent family included granted patents in Europe and the United States and patent applications in Australia, Canada, China, Israel, India, Japan, South Korea, Mexico, Russia, Thailand and the United States (continuation application). We expect patents in this family to expire in March 2034.
The fifth of these patent families relates to certain specific salts of RPL554. As of February 6, 2018, this patent family included patent applications in Australia, Canada, China, Europe, Israel, Japan, Mexico, New Zealand, the United States and South Africa. We expect patents in this family to expire in February 2036.
The sixth of these patent families relates to use of RPL554 to treat certain diseases associated with the function of CFTR (including CF). As of February 6, 2018, this patent family included patent applications in Australia, Canada, Europe (parent and divisional applications), Israel, Mexico, Russia, the United States and South Africa. We expect patents in this family to expire in May 2035.
The seventh of these patent families relates to an inhalable formulation of RPL554. As of February 6, 2018, this patent family included patent applications in Australia, Brazil, Canada, China, Europe (parent and divisional applications), Indonesia, Israel, India, Japan, South Korea, Mexico, Malaysia, New Zealand, the Philippines, Singapore, South Africa, Thailand, and the United States. A notice of allowance issued on the United States application on January 11, 2018. A Communication under Rule 71(3) EPC (notice of allowance) issued on the European parent application on November 15, 2017. . We expect patents in this family to expire in September 2035.
The first of these patent families relates to ensifentrine per se. As of February 6, 2020, this patent family includes granted patents in Australia, Brazil, Canada, China, Europe, Japan, Mexico as well as four granted patents in the United States. We expect patents in this family to expire in March 2020.
The second of these patent families relates to a crystalline polymorph of ensifentrine. As of February 6, 2020, this patent family included granted patents in Australia, Canada, China, Europe, Indonesia, Israel, Japan, South Korea, Malaysia, Mexico, the Philippines, Russia, the United States and Taiwan and patent applications in Thailand and the Gulf Cooperation Council. We expect patents in this family to expire in August 2031.
The third of these patent families relates to the combination of ensifentrine with a beta‑adrenergic receptor agonist. As of February 6, 2020, this patent family included granted patents in Europe and the United States and a patent application in Canada. We expect patents in this family to expire in March 2034.
The fourth of these patent families relates to the combination of ensifentrine with a muscarinic receptor antagonist. As of February 6, 2020, this patent family included granted patents in Australia, Europe, Japan, Russia and the United States (two patents) and patent applications in Canada, China, India, South Korea, Mexico and Thailand. We expect patents in this family to expire in March 2034.
The fifth of these patent families relates to certain specific salts of ensifentrine. As of February 6, 2020, this patent family included a granted patent in the United States and patent applications in Australia, Canada, China, Europe, Israel, Japan, Mexico, New Zealand, the United States (continuation application) and South Africa. We expect patents in this family to expire in February 2036.
The sixth of these patent families relates to use of ensifentrine to treat certain diseases associated with the function of CFTR (including cystic fibrosis). As of February 6, 2020, this patent family included a granted patents in Europe (two patents) and Russia and patent applications in Australia, Canada, Israel, Mexico, the United States and South Africa. We expect patents in this family to expire in May 2035.
The seventh of these patent families relates to an inhalable formulation of ensifentrine. As of February 6, 2020, this patent family included granted patents in Europe (two patents), Hong Kong (two patents), Israel, Russia, the United States, Singapore and South Africa and patent applications in Australia (parent and divisional applications), Brazil, Canada, China (parent and divisional applications), Europe (divisional application), Hong Kong (divisional application), Indonesia, India, Japan (parent and divisional applications), South Korea, Mexico, Malaysia, New Zealand, the Philippines, Thailand and the United States (continuation application).  We expect patents in this family to expire in September 2035.
The eighth of these patent families relates to a new intermediate for the manufacture of ensifentrine and to processes useful for the production of ensifentrine and related compounds. As of February 6, 2020, this patent family included a granted European patent and patent applications in China, Hong Kong, India, Japan, United States and Taiwan. We expect patents in this family to expire in July 2037.
The ninth of these patent families relates to a formulation comprising ensifentrine for a MDI.  As of February 6, 2020, this patent family included a pending, unpublished PCT patent application and a pending, unpublished patent application in the United Kingdom.  We expect patents in this family to expire in October 2039.
The tenth of these patent families relates to a formulation comprising ensifentrine for DPI. As of February 6, 2020, this patent family included a pending, unpublished patent application in the United Kingdom. We expect patents in this family to expire in August 2040.

The eighth of these patent families relates to a new compound related to RPL554 and to processes useful for the production of RPL554 and related compounds. As of February 6, 2018, this patent family included a PCT application and a patent application in Taiwan. We expect patents in this family to expire in July 2037.
Individual patents extend for varying periods depending on the date of filing of the patent application or the date of patent issuance and the legal term of patents in the countries in which they are obtained. Generally, patents issued for regularly filed applications in the United States are granted a term of 20 years from the earliest effective non-provisionalnon‑provisional filing date. In addition, in certain instances, a patent term can be extended to recapture a portion of the U.S. Patent and Trademark Office, or the USPTO, delay in issuing the patent as well as a portion of the term effectively lost as a result of the FDA regulatory review period. However, as to the FDA component, the restoration period cannot be longer than five years and the total patent term including the restoration period must not exceed 14 years following FDA approval. The duration of foreign patents varies in accordance with provisions of applicable local law, but typically is also 20 years from the earliest effective filing date. However, the actual protection afforded by a patent varies on a product by product basis, from country to country and depends upon many factors, including the type of patent, the scope of its coverage, the availability of regulatory-relatedregulatory‑related extensions, the availability of legal remedies in a particular country and the validity and enforceability of the patent.
Furthermore, we rely upon trade secrets and know-howknow‑how and continuing technological innovation to develop and maintain our competitive position. We seek to protect our proprietary information, in part, using confidentiality agreements with our collaborators, employees and consultants and invention assignment agreements with our employees. We also have confidentiality agreements or invention assignment agreements with our collaborators and selected consultants. These agreements are designed to protect our proprietary information and, in the case of the invention assignment agreements, to grant us ownership of technologies that are developed through a relationship with a third party. These agreements may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discovered by competitors. To the extent that our collaborators, employees and consultants use intellectual property owned by others in their work for us, disputes may arise as to the rights in related or resulting know-howknow‑how and inventions.
Our commercial success will also depend in part on not infringing upon the proprietary rights of third parties. It is uncertain whether the issuance of any third-partythird‑party patent would require us to alter our development or commercial strategies, or our drugs or processes, obtain licenses or cease certain activities. Our breach of any license agreements or failure to obtain a license to proprietary rights that we may require to develop or commercialize our future drugs may have an adverse impact on us. If third parties have prepared and filed patent applications prior to March 16, 2013 in the United States that also claim technology to which we have rights, we may have to participate in interference proceedings in the USPTO, to determine priority of invention. For more information, please see "Risk“Item 3.D. Risk Factors - Risks Related to Intellectual Property and Information Technology."
Government Regulation
The FDA and comparable regulatory authorities in state and local jurisdictions and in other countries impose substantial and burdensome requirements upon companies involved in the clinical development, manufacture, marketing and distribution of drug such as those we are developing. These agencies and other federal, state and local entities regulate, among other things, the research and development, testing, manufacture, quality control, safety, effectiveness, labeling, storage, record keeping, approval, advertising and promotion, distribution, post-approval monitoring and reporting, sampling and export and import of our product candidates.
U.S. Government Regulation
In the United States, the FDA regulates drugs under the Federal Food, Drug, and Cosmetic Act, or FDCA, and its implementing regulations.
The process of obtaining regulatory approvals and the subsequent compliance with applicable federal, state, local and foreign statutes and regulations requires the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval, may subject an applicant to a variety of administrative or judicial sanctions, such as the FDA's refusal to approve pending NDAs, withdrawal of an approval, imposition of a clinical hold, issuance of warning letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement or civil or criminal penalties.
The process required by the FDA before a drug may be marketed in the United States generally involves the following:

completionCompletion of pre-clinical laboratory tests, animal studies and formulation studies in compliance with the FDA's good laboratory practice, or GLP, regulations;
submissionSubmission to the FDA of an investigational new drug application, or IND, which must become effective before human clinical trials may begin;

approvalApproval by an independent institutional review board, or IRB, at each clinical site before each trial may be initiated;
performancePerformance of adequate and well-controlled human clinical trials in accordance with good clinical practice, or GCP, requirements to establish the safety and efficacy of the proposed drug product for each indication;
submissionSubmission to the FDA of an NDA;
satisfactorySatisfactory completion of an FDA advisory committee review, if applicable;
satisfactorySatisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the product is produced to assess compliance with current good manufacturing practice, or cGMP, requirements and to assure that the facilities, methods and controls are adequate to preserve the drug's identity, strength, quality and purity; and
FDA review and approval of the NDA.
Pre-clinical Studies
Pre-clinical studies include laboratory evaluation of product chemistry, toxicity and formulation, as well as animal studies to assess potential safety and efficacy. An IND sponsor must submit the results of the pre-clinical tests, together with manufacturing information, analytical data and any available clinical data or literature, among other things, to the FDA as part of an IND. Some pre-clinicalPre-clinical testing may continue even after the IND is submitted.effective. An IND automatically becomes effective 30 days after receipt by the FDA, unless before that time the FDA raises concerns or questions related to one or more proposed clinical trials and places the clinical trial on a clinical hold. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. As a result, submission of an IND may not result in the FDA allowing clinical trials to commence.
Clinical Trials
Clinical trials involve the administration of the investigational new drug to human subjects under the supervision of qualified investigators in accordance with GCP requirements, which include the requirement that all research subjects provide their informed consent in writing for their participation in any clinical trial. Clinical trials are conducted under protocols detailing, among other things, the objectives or endpoints of the trial, the parameters to be used in monitoring safety, and the effectiveness criteria to be evaluated. A protocol for each clinical trial and any subsequent protocol amendments must be submitted to the FDA as part of the IND. In addition, an IRB at each institution participating in the clinical trial must review and approve the plan for any clinical trial before it commences at that institution. Information about certain clinical trials must be submitted within specific timeframes to the National Institutes of Health, or NIH, for public dissemination on their www.clinicaltrials.gov website.
Human clinical trials are typically conducted in three sequential phases, which may overlap or be combined:
Phase 1: The drug is initially introduced into healthy human subjects or patients with the target disease or condition and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain an early indication of its effectiveness.
Phase 2: The drug is administered to a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate the efficacy of the product for specific targeted diseases and to determine dosage tolerance and optimal dosage.
Phase 3: The drug is administered to an expanded patient population, generally at geographically dispersed clinical trial sites, in well-controlled clinical trials to generate enough data to statistically evaluate the efficacy and safety of the product for approval, to establish the overall risk-benefit profile of the product, and to provide adequate information for the labeling of the product.
Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and more frequently if serious adverse events occur. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, or at all. Furthermore, the FDA or the sponsor may suspend or terminate a

clinical trial at any time on various grounds, including a finding that the research subjects are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB's requirements or if the drug has been associated with unexpected serious harm to patients.
Special Protocol Assessment
The special protocol assessment, or SPA, process is designed to facilitate the FDA's review and approval of drugs by allowing the FDA to evaluate issues related to the adequacy of certain clinical trials, including Phase 3 clinical trials that are intended to form the primary basis for a drug product's efficacy claim in an NDA. Upon

specific request by a clinical trial sponsor, the FDA will evaluate the protocol and respond to a sponsor's questions regarding, among other things, primary efficacy endpoints, trial conduct and data analysis, within 45 days of receipt of the request.
The FDA ultimately assesses whether the protocol design and planned analysis of the trial are acceptable to support regulatory approval of the product candidate with respect to effectiveness of the indication studied. All agreements and disagreements between the FDA and the sponsor regarding an SPA must be clearly documented in an SPA letter or the minutes of a meeting between the sponsor and the FDA.
Even if the FDA agrees to the design, execution and analyses proposed in protocols reviewed under the SPA process, the FDA may revoke or alter its agreement under the following circumstances:
publicPublic health concerns emerge that were unrecognized at the time of the protocol assessment:
theThe director of the review division determines that a substantial scientific issue essential to determining safety or efficacy has been identified after testing has begun;
aA sponsor fails to follow a protocol that was agreed upon with the FDA; or
theThe relevant data, assumptions, or information provided by the sponsor in a request for SPA change, are found to be false statements or misstatements, or are found to omit relevant facts.
A documented SPA may be modified, and such modification will be deemed binding on the FDA review division, except under the circumstances described above, if FDA and the sponsor agree in writing to modify the protocol and such modification is intended to improve the study.
Marketing Approval
Assuming successful completion of the required clinical testing, the results of the pre-clinical studies and clinical trials, together with detailed information relating to the product's chemistry, manufacture, controls and proposed labeling, among other things, are submitted to the FDA as part of an NDA requesting approval to market the product for one or more indications. In most cases, the submission of an NDA is subject to a substantial application user fee. Under the Prescription Drug User Fee Act, or PDUFA, guidelines that are currently in effect, the FDA has a goal of ten months from the date of "filing" of a standard NDA for a new molecular entity to review and act on the submission. This review typically takes twelve months from the date the NDA is submitted to FDA because the FDA has approximately two months to make a "filing" decision.
In addition, under the Pediatric Research Equity Act of 2003, or PREA, as amended and reauthorized, certain NDAs or supplements to an NDA must contain data that are adequate to assess the safety and effectiveness of the drug for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all pediatric data until after approval of the product for use in adults, or full or partial waivers from the pediatric data requirements.
The FDA may also require submission of a risk evaluation and mitigation strategy, or REMS, plan to ensure that the benefits of the drug outweigh its risks. The REMS plan could include medication guides, physician communication plans, assessment plans, and/or elements to assure safe use, such as restricted distribution methods, patient registries, or other risk minimization tools.
The FDA conducts a preliminary review of all NDAs within the first 60 days after submission, before accepting them for filing, to determine whether they are sufficiently complete to permit substantive review. The FDA may request additional information rather than accept an NDA for filing. In this event, the application must be resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for filing.

Once the submission is accepted for filing, the FDA begins an in-depth substantive review. The FDA reviews an NDA to determine, among other things, whether the drug is safe and effective and whether the facility in which it is manufactured, processed, packaged or held meets standards designed to assure the product's continued safety, quality and purity.
The FDA may refer an application for a novel drug to an advisory committee. An advisory committee is a panel of independent experts, including clinicians and other scientific experts, that reviews, evaluates and provides a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions.
Before approving an NDA, the FDA typically will inspect the facility or facilities where the product is manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. Additionally, before approving an NDA, the FDA may inspect one or more clinical trial sites to assure compliance with GCP requirements.

After evaluating the NDA and all related information, including the advisory committee recommendation, if any, and inspection reports regarding the manufacturing facilities and clinical trial sites, the FDA may issue an approval letter, or, in some cases, a complete response letter. A complete response letter generally contains a statement of specific conditions that must be met in order to secure final approval of the NDA and may require additional clinical or pre-clinical testing in order for FDA to reconsider the application. Even with submission of this additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. If and when those conditions have been met to the FDA's satisfaction, the FDA will typically issue an approval letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications.
Even if the FDA approves a product, it may limit the approved indications for use of the product, require that contraindications, warnings or precautions be included in the product labeling, require that post-approval studies, including Phase 4 clinical trials, be conducted to further assess a drug's safety after approval, require testing and surveillance programs to monitor the product after commercialization, or impose other conditions, including distribution and use restrictions or other risk management mechanisms under a REMS, which can materially affect the potential market and profitability of the product. The FDA may prevent or limit further marketing of a product based on the results of post-marketing studies or surveillance programs. After approval, some types of changes to the approved product, such as adding new indications, manufacturing changes, and additional labeling claims, are subject to further testing requirements and FDA review and approval.
Post-Approval Requirements
Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, product sampling and distribution, advertising and promotion and reporting of adverse experiences with the product. After approval, most changes to the approved product, such as adding new indications or other labeling claims are subject to prior FDA review and approval. There also are continuing, annual user fee requirements for any marketed products under which NDA applicants must pay a substantial “program fee” for each prescription drug product approved in an NDA.
The FDA may impose a number of post-approval requirements as a condition of approval of an NDA. For example, the FDA may require post-marketing testing, including Phase 4 clinical trials, and surveillance to further assess and monitor the product's safety and effectiveness after commercialization.
In addition, drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and state agencies, and are subject to periodic unannounced inspections by the FDA and these state agencies for compliance with cGMP requirements. Changes to the manufacturing process are strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMP requirements and impose reporting and documentation requirements upon the sponsor and any third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time, money and effort in the area of production and quality control to maintain cGMP compliance.
Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the product reaches the market. Later discovery of previously

unknown problems with a product, including adverse events of unanticipated severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements, may result in mandatory revisions to the approved labeling to add new safety information; imposition of post-market studies or clinical trials to assess new safety risks; or imposition of distribution or other restrictions under a REMS program. Other potential consequences include, among other things:
restrictionsRestrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;
fines,Fines, warning letters or holds on post-approval clinical trials;
refusalRefusal of the FDA to approve pending NDAs or supplements to approved NDAs, or suspension or revocation of product approvals;
productProduct seizure or detention, or refusal to permit the import or export of products; or
injunctionsInjunctions or the imposition of civil or criminal penalties.
The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted only for the approved indications and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant liability.

Foreign Government Regulation
To the extent that any of our product candidates, once approved, are sold in a foreign country, we may be subject to similar foreign laws and regulations, which may include, for instance, applicable post-marketing requirements, including safety surveillance, anti-fraud and abuse laws, privacy laws and implementation of corporate compliance programs and reporting of payments or other transfers of value to healthcare professionals.
In order to market our future products in the EEA (which is comprised of the 2827 Member States of the EU plus Norway, Iceland and Liechtenstein)Liechtenstein, and the United Kingdom until the end of the transition period on December 31, 2020 provided for in the Withdrawal Agreement between the EU and the United Kingdom) and many other foreign jurisdictions, we must obtain separate regulatory approvals. More concretely, in the EEA, medicinal products can only be commercialized after obtaining a Marketing Authorization, or MA. There are two types of marketing authorizations:
theThe Community MA, which is issued by the European Commission through the Centralized Procedure, based on the opinion of the Committee for Medicinal Products for Human Use of the European Medicines Agency, or EMA, and which is valid throughout the entire territory of the EEA. The Centralized Procedure is mandatory for certain types of human medicinal products, such as medicines derived from biotechnology processes, advanced therapy medicinal products (such as gene therapy, somatic cell therapy and tissue engineered products), orphan designated medicinal products, and medicinal products that contain a new active substance indicated for the treatment of certain diseases such as HIV/AIDS, cancer, neurodegenerative disorders, diabetes, auto-immune and viral diseases. The Centralized Procedure is optional for products containing a new active substance not yet authorized in the EEA, or for products that constitute a significant therapeutic, scientific or technical innovation or which are in the interest of public health in the EU;EU. Under the centralized procedure the maximum timeframe for the evaluation of a Marketing Authorization Application, or MAA, by the EMA is 210 days, excluding clock stops, when additional written or oral information is to be provided by the applicant in response to questions asked by the Committee for Medicinal Products for Human Use, or CHMP. Accelerated assessment might be granted by the CHMP in exceptional cases, when a medicinal product is expected to be of a major public health interest, particularly from the point of view of therapeutic innovation. The timeframe for the evaluation of an MAA under the accelerated assessment procedure is 150 days, excluding clock stops; and
National MAs, which are issued by the competent authorities of the Member States of the EEA and only cover their respective territory, are available for products not falling within the mandatory scope of the Centralized Procedure. Where a product has already been authorized for marketing in a Member State of the EEA, this National MA can be recognized in another Member State through the Mutual Recognition Procedure. If the product has not received a National MA in any Member State at the time of application, it can be approved simultaneously in various Member States through the Decentralized Procedure.
Under the above described procedures, before granting the MA, the EMA or the competent authorities of the Member States of the EEA make an assessment of the risk-benefit balance of the product on the basis of scientific criteria concerning its quality, safety and efficacy.
In the EEA, new products authorized for marketing, or reference products, qualify for eight years of data exclusivity and an additional two years of market exclusivity upon marketing authorization. The data exclusivity period prevents generic or biosimilar applicants from relying on the pre-clinical and clinical trial data contained in the dossier of the reference product when applying for a generic or biosimilar marketing authorization in the EU during a period of eight years from the date on which the reference product was first authorized in the EU. The market exclusivity period prevents a successful generic or biosimilar applicant from commercializing its product in the EU until 10 years have elapsed from the initial authorization of the reference product in the EU. The 10-year market exclusivity period can be extended to a maximum of eleven years if, during the first eight years of those 10 years,

the marketing authorization holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in comparison with existing therapies.
In the EEA, marketing authorization applications for new medicinal products not authorized have to include the results of studies conducted in the pediatric population, in compliance with a pediatric investigation plan, or PIP, agreed with the EMA's Pediatric Committee, or PDCO. The PIP sets out the timing and measures proposed to generate data to support a pediatric indication of the drug for which marketing authorization is being sought. The PDCO can grant a deferral of the obligation to implement some or all of the measures of the PIP until there are sufficient data to demonstrate the efficacy and safety of the product in adults. Further, the obligation to provide pediatric clinical trial data can be waived by the PDCO when these data is not needed or appropriate because the product is likely to be ineffective or unsafe in children, the disease or condition for which the product is

intended occurs only in adult populations, or when the product does not represent a significant therapeutic benefit over existing treatments for pediatric patients. Once the marketing authorization is obtained in all Member States of the EU and study results are included in the product information, even when negative, the product is eligible for six months' supplementary protection certificate extension. For orphan-designated medicinal products, the 10-year period of market exclusivity is extended to 12 years.
We are also subject to privacy laws in the jurisdictions in which we are established or in which we sell or market our products or run clinical trials. For example, in Europe, we are subject to Regulation (EU) 2016/679 (General Data Protection Regulation, or GDPR) in relation to our collection, control, processing and other use of personal data (i.e. data relating to an identifiable living individual). We process personal data in relation to participants in our clinical trials in the EEA., including the health and medical information of these participants. The GDPR is directly applicable in each EU Member State, however, it provides that EU Member States may introduce further conditions, including limitations which could limit our ability to collect, use and share personal data (including health and medical information), or could cause our compliance costs to increase, ultimately having an adverse impact on our business. The GDPR imposes onerous accountability obligations requiring data controllers and processors to maintain a record of their data processing and implement policies as part of its mandated privacy governance framework. It also requires data controllers to be transparent and disclose to data subjects (in a concise, intelligible and easily accessible form) how their personal information is to be used, imposes limitations on retention of personal data; defines for the first time pseudonymized (i.e., key-coded) data; introduces mandatory data breach notification requirements; and sets higher standards for data controllers to demonstrate that they have obtained valid consent for certain data processing activities. We are also subject to EU rules with respect to cross-border transfers of personal data out of the EU and EEA. We are subject to the supervision of local data protection authorities in those EU jurisdictions where we are established or otherwise subject to the GDPR. Fines for certain breaches of the GDPR are significant: up to the greater of €20 million or 4% of total global annual turnover. In addition to the foregoing, a breach of the GDPR could result in regulatory investigations, reputational damage, orders to cease/change our use of data, enforcement notices, as well potential civil claims including class action type litigation where individuals suffer harm.
Other U.S. Healthcare Laws
In addition to FDA restrictions on marketing of pharmaceutical and biological products, other U.S. federal and state healthcare regulatory laws restrict business practices in the pharmaceutical industry, which include, but are not limited to, state and federal anti-kickback, false claims, data privacy and security and physician payment and drug pricing transparency laws.
The U.S. federal Anti-Kickback Statute prohibits, among other things, any person or entity from knowingly and willfully offering, paying, soliciting, receiving or providing any remuneration, directly or indirectly, overtly or covertly, to induce or in return for purchasing, leasing, ordering, or arranging for or recommending the purchase, lease, or order of any good, facility, item or service reimbursable, in whole or in part, under Medicare, Medicaid or other federal healthcare programs. The term "remuneration" has been broadly interpreted to include anything of value. The Anti-Kickback Statute has been interpreted to apply to arrangements between pharmaceutical manufacturers on the one hand and prescribers, purchasers, formulary managers and beneficiaries on the other. Although there are a number of statutory exceptions and regulatory safe harbors protecting some common activities from prosecution, the exceptions and safe harbors are drawn narrowly. Practices that involve remuneration that may be alleged to be intended to induce prescribing, purchases, or recommendations may be subject to scrutiny if they do not meet the requirements of a statutory or regulatory exception or safe harbor. Failure to meet all of the requirements of a particular applicable statutory exception or regulatory safe harbor does not make the conduct per se illegal under the U.S. federal Anti-Kickback Statute. Instead, the legality of the arrangement will be evaluated on a case-by-case basis based on a cumulative review of all its facts and circumstances. Several courts have interpreted the statute's intent requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare covered business, the statute has been violated.
Additionally, the intent standard under the U.S. federal Anti-Kickback Statute was amended by the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively, the ACA, to a stricter standard such that a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation. In addition, the ACA codified case law that a claim including items or services resulting from a violation of the U.S. federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal civil False Claims Act. The majority of states also have anti-kickback laws, which establish similar prohibitions and in some cases may apply to items or services reimbursed by any third-party payor, including commercial insurers.
The federal false claims and civil monetary penalties laws, including the civil False Claims Act, prohibit any person or entity from, among other things, knowingly presenting, or causing to be presented, a false, fictitious or fraudulent claim for payment to, or approval by, the federal government, knowingly making, using, or causing to

be made or used a false record or statement material to a false or fraudulent claim to the federal government, or from knowingly making a false statement to avoid, decrease or conceal an obligation to pay money to the U.S. federal government. A claim includes "any request or demand" for money or property presented to the U.S. government. Actions under the civil False Claims Act may be brought by the Attorney General or as a qui tam action by a private individual in the name of the government. Violations of the civil False Claims Act can result in very significant monetary penalties and treble damages. Several pharmaceutical and other healthcare companies have been prosecuted under these laws for, among other things, allegedly providing free product to customers with the expectation that the customers

would bill federal programs for the product. Other companies have been prosecuted for causing false claims to be submitted because of the companies' marketing of products for unapproved, or off-label, uses. In addition, the civil monetary penalties statute imposes penalties against any person who is determined to have presented or caused to be presented a claim to a federal health program that the person knows or should know is for an item or service that was not provided as claimed or is false or fraudulent. Many states also have similar fraud and abuse statutes or regulations that apply to items and services reimbursed under Medicaid and other state programs, or, in several states, apply regardless of the payor.
Violations of fraud and abuse laws, including federal and state anti-kickback and false claims laws, may be punishable by criminal and civil sanctions, including fines and civil monetary penalties, the possibility of exclusion from federal healthcare programs (including Medicare and Medicaid), disgorgement and corporate integrity agreements, which impose, among other things, rigorous operational and monitoring requirements on companies. Similar sanctions and penalties, as well as imprisonment, also can be imposed upon executive officers and employees of such companies. Given the significant size of actual and potential settlements, it is expected that the government authorities will continue to devote substantial resources to investigating healthcare providers' and manufacturers' compliance with applicable fraud and abuse laws.
The federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, created additional federal criminal statutes that prohibit, among other actions, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third-party payors, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully obstructing a criminal investigation of a healthcare offense and knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items or services. Similar to the U.S. federal Anti-Kickback Statute, the ACA broadened the reach of certain criminal healthcare fraud statutes created under HIPAA by amending the intent requirement such that a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation.
In addition, there has been a recent trend of increased federal and state regulation of payments made to physicians and certain other healthcare providers. The ACA imposed, among other things, new annual reporting requirements through the Physician Payments Sunshine Act for covered manufacturers for certain payments and "transfers of value" provided to physicians and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members. Failure to submit timely, accurately and completely the required information for all payments, transfers of value and ownership or investment interests may result in civil monetary penalties of up to an aggregate of $150,000$165,786 per year and up to an aggregate of $1$1.105 million per year for "knowing failures." Covered manufacturers must submit reports by the 90th day of each subsequent calendar year. In addition, certain states require implementation of compliance programs and compliance with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government, impose restrictions on marketing practices and/or tracking and reporting of gifts, compensation and other remuneration or items of value provided to physicians and other healthcare professionals and entities.
We may also be subject to data privacy and security regulation by both the federal government and the states in which we conduct our business. HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, and their respective implementing regulations including the Final HIPAA Omnibus Rule published on January 25, 2013, impose specified requirements relating to the privacy, security and transmission of individually identifiable health information held by covered entities and their business associates. Among other things, HITECH made HIPAA's security standards directly applicable to "business associates," defined as independent contractors or agents of covered entities that create, receive, maintain or transmit protected health information in connection with providing a service for or on behalf of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against covered entities, business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA laws and seek attorney's fees and costs associated with pursuing federal civil actions. In addition, state laws govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have the same requirements, thus complicating compliance efforts.

Coverage and Reimbursement
Significant uncertainty exists as to the coverage and reimbursement status of any pharmaceutical or biological products for which we obtain regulatory approval. In the United States and markets in other countries, patients who are prescribed treatments for their conditions and providers performing the prescribed services generally rely on

third-party payors to reimburse all or part of the associated healthcare costs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost of our products. Sales of any products for which we receive regulatory approval for commercial sale will therefore depend, in part, on the availability of coverage and adequate reimbursement from third-party payors. Third-party payors include government authorities, managed care plans, private health insurers and other organizations.
In the United States, the process for determining whether a third-party payor will provide coverage for a pharmaceutical or biological product typically is separate from the process for setting the price of such product or for establishing the reimbursement rate that the payor will pay for the product once coverage is approved. Third-party payors may limit coverage to specific products on an approved list, also known as a formulary, which might not include all of the FDA-approved products for a particular indication. A decision by a third-party payor not to cover our product candidates could reduce physician utilization of our products once approved and have a material adverse effect on our sales, results of operations and financial condition. Moreover, a third-party payor's decision to provide coverage for a pharmaceutical or biological product does not imply that an adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be available to enable us to maintain price levels sufficient to realize an appropriate return on our investment in product development. Additionally, coverage and reimbursement for products can differ significantly from payor to payor. One third-party payor's decision to cover a particular medical product or service does not ensure that other payors will also provide coverage for the medical product or service, or will provide coverage at an adequate reimbursement rate. As a result, the coverage determination process will require us to provide scientific and clinical support for the use of our products to each payor separately and will be a time-consuming process.
In the EEA, governments influence the price of products through their pricing and reimbursement rules and control of national health care systems that fund a large part of the cost of those products to consumers. Some jurisdictions operate positive and negative list systems under which products may only be marketed once a reimbursement price has been agreed to by the government. To obtain reimbursement or pricing approval, some of these countries may require the completion of clinical trials that compare the cost effectiveness of a particular product candidate to currently available therapies. Other member states allow companies to fix their own prices for medicines, but monitor and control company profits. The downward pressure on health care costs in general, particularly prescription products, has become very intense. As a result, increasingly high barriers are being erected to the entry of new products. In addition, in some countries, cross border imports from low-priced markets exert a commercial pressure on pricing within a country.
The containment of healthcare costs has become a priority of federal, state and foreign governments, and the prices of pharmaceutical or biological products have been a focus in this effort. Third-party payors are increasingly challenging the prices charged for medical products and services, examining the medical necessity and reviewing the cost-effectiveness of pharmaceutical or biological products, medical devices and medical services, in addition to questioning safety and efficacy. If these third-party payors do not consider our products to be cost-effective compared to other available therapies, they may not cover our products after FDA approval or, if they do, the level of payment may not be sufficient to allow us to sell our products at a profit.
Healthcare Reform
A primary trend in the U.S. healthcare industry and elsewhere is cost containment. Government authorities and other third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medical products. For example, in March 2010, the ACA was enacted, which, among other things, increased the minimum Medicaid rebates owed by most manufacturers under the Medicaid Drug Rebate Program; introduced a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected; extended the Medicaid Drug Rebate Program to utilization of prescriptions of individuals enrolled in Medicaid managed care plans; imposed mandatory discounts for certain Medicare Part D beneficiaries as a condition for manufacturers' outpatient drugs coverage under Medicare Part D; subjected drug manufacturers to new annual fees based on pharmaceutical companies' share of sales to federal healthcare programs; created a new Patient Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research; creation of the Independent Payment Advisory Board, once empaneled, will have authority to recommend certain changes to the Medicare program that could result in reduced payments for prescription drugs; and establishment of a Center for Medicare Innovation at the CMS to test innovative payment and service delivery models to lower Medicare and Medicaid spending. Since its enactment, the U.S. federal government has delayed or suspended implementation of certain provisions of the

ACA. In addition, there have been judicial and Congressional challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the

ACA in the future. In addition, Congress could consider subsequent legislation to replace those elements of the ACA if so repealed. Further, on December 14, 2018, a U.S. District Court Judge in the Northern District of Texas, or Texas District Court Judge, ruled that the entire ACA is invalid based primarily on the fact that the Tax Cuts and Jobs Act of 2017 repealed the tax-based shared responsibility payment imposed by the ACA, on certain individuals who fail to maintain qualifying health coverage for all or part of a year, which is commonly referred to as the “individual mandate”. While the Texas District Court Judge, as well as the current presidential administration and Centers for Medicare & Medicaid Services, have stated that this ruling will have no immediate effect, it is unclear how this decision, subsequent appeals, and other efforts to repeal and replace the ACA will impact the law. The ultimate content, timing or effect of any healthcare reform legislation on the U.S. healthcare industry is unclear.
We expect that the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and lower reimbursement, and additional downward pressure on the price that we receive for any approved product. Any reduction in reimbursement from Medicare or other government-funded programs may result in a similar reduction in payments from private payors. Moreover, recently there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. The implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability or commercialize our drugs.
Additionally, on August 2, 2011, the Budget Control Act of 2011 created measures for spending reductions was enacted, which, among other things, included aggregate reductions of Medicare payments to providers of 2% per fiscal year, which went into effect on April 1, 2013 and, due to subsequent legislative amendments to the statute, will stay in effect through 20252027 unless additional action is taken by Congress. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced Medicare payments to several types of providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. More recently, there has been heightened governmental scrutiny recently over the manner in which manufacturers set prices for their marketed products, which have resulted in several recent Congressional inquiries and proposed billsand enacted legislation designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for pharmaceutical products.
We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for our products once approved or additional pricing pressures.
Employees
As of December 31, 2017,2019, we had 1525 employees. None of our employees is subject to a collective bargaining agreement or represented by a trade or labor union.
Facilities
Our principal office is located at 3 More London Riverside, London, EC2N 1DW,SE1 2RE, United Kingdom, where we lease office space under three leases that terminate in 2018 and early 2019.2022. We also lease office space in White Plains,at 434 West 33rd Street, New York City, New York, under leasesa lease that terminateterminates in 2018.2021. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.
Legal Proceedings
We are not subject to any material legal proceedings.


C. Organizational Structure.
We have two wholly-owned subsidiaries, Verona Pharma Inc., which is incorporated in the United States in the State of Delaware, and Rhinopharma Ltd., which is incorporated in Canada.

D. Property, Plants and Equipment.
Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, where we lease office space. We also lease office space in White Plains,Manhattan, New York. The office space in these two locations is held under foursix leases that terminate between August 2018October 2021 and January 2020.February 2022. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.

Environmental Issues
For information on environmental issues that may affect our utilization of our facilities, please see the section of this Annual Report titled “ItemItem 3.D. Risk Factors - Risks Related to Healthcare Laws and Other Legal Compliance Matters - We are subject to environmental, health and safety laws and regulations, and we may become exposed to liability and substantial expenses in connection with environmental compliance or remediation activities.


ITEM 4A: UNRESOLVED STAFF COMMENTS
Not applicable.None.


ITEM 5: OPERATING AND FINANCIAL REVIEW AND PROSPECTS
A. OPERATING RESULTS

Overview
We are a clinical-stage biopharmaceutical company focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.need. Our product candidate, RPL554,ensifentrine (RPL554) is aan investigational, potential first-in-class, inhaled, dual inhibitor of the enzymes phosphodiesterase 3 and 4, or PDE3 and PDE4, that actsis designed to act as both a bronchodilator and an anti-inflammatory agent in a single compound.agent. We are not aware of anytherapy in a other single compound in clinical development or approved by the U.S. Food and Drug Administration, or FDA, ornor the European Medicines Agency, or EMA, for the treatment of respiratory diseases that acts as both a bronchodilator and anti-inflammatory agent. We believe RPL554ensifentrine has the potential to be the first novel class of bronchodilator in over 40 years. We haveA nebulized formulation of ensifentrine has currently completed patient enrollmentPhase 2 clinical development for the treatment of chronic obstructive pulmonary disease, or COPD, and we are preparing to meet with the FDA to discuss plans for Phase 3 clinical trials, which we expect to commence in twelvethe third quarter of 2020, subject to FDA feedback and to funding.
Successful Phase 1 and 2 clinical trials for RPL554 with over 700 subjects enrolled; ten of these studies have been completed with nebulized ensifentrine in healthy volunteers and in patients with cystic fibrosis, or CF, chronic asthma and allergic rhinitis, in addition to COPD. A Phase 2 study in COPD with ensifentrine formulated in a dry powder inhaler, or DPI, has been completed, with positive clinical results reported onein August 2019. A Phase 2 study in COPD with ensifentrine formulated in a pressurized metered dose inhaler, or MDI, is ongoing with clinical results expected to report late in the first quarter of 2018 and one study is expected to report early in the second quarterhalf of 2018.2020. We intend to develop ensifentrine as a nebulized therapy for the treatment of COPD.
For the past 40 years, the treatment of COPD has been dominated by three classes of inhaled therapies approved for use by the FDA or EMA: antimuscarinic agents and beta2-agonists, both available as either short-acting or long-acting bronchodilators, and inhaled corticosteroids, or ICS, known for their anti-inflammatory effects. However, despite existing treatment with one or multiple combinations of these therapies, and owing to the progressive and incurable nature of COPD, many COPD patients on maximum inhaled therapy still experience significant lung function impairment and symptoms for which limited further approved treatment options are available. One such treatment is an oral formulation of a PDE4 inhibitor (roflumilast) with anti-inflammatory properties, although frequency of adverse events has limited its use in COPD patients. Clinicians have expressed desire to use this oral PDE4 inhibitor in more patients were it not for the adverse events. We believe this suggests that ensifentrine has potential to become an important treatment for COPD and other respiratory diseases if our late-stage clinical program demonstrates favorable efficacy, safety and tolerability results for the compound.
We have completed fifteen Phase 1 and Phase 2 clinical trials with ensifentrine, which have enrolled over 1,300 subjects with COPD, asthma, cystic fibrosis, or allergic rhinitis or healthy volunteers. In our clinical trials, treatment with RPL554ensifentrine has been repeatedly observed to result in statistically significant improvements in lung function as compared to placebo.placebo, whether dosed alone or in combination with commonly used short- and long-acting classes of bronchodilators, with or without ICS. Statistically significant means that there is a low statistical probability, typically less than 5%, that the observed results in a study or a trial occurred by chance alone. Our
In two Phase 2b clinical trials of nebulized ensifentrine as a maintenance treatment for COPD, patients with moderate-to-severe COPD treated with ensifentrine showed clinically meaningful and statistically significant improvements in reported COPD symptom scores. In addition, our clinical trials have also have shown clinically meaningful and statistically significant improvements in certain measures of lung function following combined treatment with ensifentrine as add-on to other approved bronchodilators; COPD patients experienced a marked reduction in residual lung volume, which is believed to be related to one of the most debilitating symptoms, breathlessness. The rapid onset of action observed when RPL554 is added toadding ensifentrine on top of tiotropium, a commonly used short-LAMA, was also notable, and long-acting bronchodilators as comparedmay be particularly helpful to eitherthose patients suffering from morning breathlessness. We believe that the clinical effects observed with ensifentrine are driven by its bronchodilator, administered as a single agent. RPL554 alsoanti-inflammatory and mucociliary clearance mechanisms.
Ensifentrine has shown anti-inflammatory effects and been observed to be well tolerated in our clinical trials to date and has not been observed to result in the gastrointestinal or other side effects commonly associated with roflumilast (branded as Daxas®/Daliresp®), the only PDE4 inhibitor currently on the market for the treatment of COPD. We are developing RPL554 for the treatment of patients with chronic obstructive pulmonary disease, or COPD, and for the treatment of patients with cystic fibrosis, or CF.
We believe RPL554,ensifentrine, having shown improvement in forced expiratory volume in one second, or FEV1 (a measure of lung function), and symptoms (which commonly are a precursor to exacerbations) in clinical trials, may be an attractive additional treatment for COPD patients, if successfully developed and approved. In the United States, approximately three million COPD patients are treated with single bronchodilator (either a LAMA

or LABA) therapy. In our clinical trials, ensifentrine has been observed to improve lung function, measured by FEV1, and residual volume, when used in addition to existing approved bronchodilators. As a result, we believe it has potential to meet the need for a safe and effective dual bronchodilator/anti-inflammatory treatment regimen as an add-on to other therapies, for example, a LAMA.Verona has completed a pilot Phase 2 study in CF patients , the results of which support the continued development of ensifentrine as a possible new treatment for CF patients. We believe ensifentrine, if approved, has the potential to become an important anda novel treatment and standard of careoption for these patients. We may also explore, alone or with a collaborator, the development of RPL554ensifentrine to treat asthma and other respiratory diseases.

In January 2020, we reported top-line results from our 4 week 416-patient Phase 2b dose-ranging clinical trial. This trial evaluated four doses of nebulized ensifentrine (0.375 mg, 0.75 mg, 1.5 mg and 3.0 mg) or placebo as an add-on treatment to tiotropium (Spiriva® Respimat®), a commonly used LAMA bronchodilator, in symptomatic patients with moderate-to-severe COPD who required additional treatment.
To evaluate RPL554The trial met its primary endpoint of improved lung function, with ensifentrine plus tiotropium producing a clinically and statistically significant dose-dependent improvement in peak FEV1 at week 4, compared to placebo plus tiotropium. The improvements ranged from 78 mL for the 0.375 mg dose (p=0.0368) to 124 mL for the 3.0 mg dose (p=0.0008) and were maintained over the 4-week study period. Dose-dependent improvements in lung function were observed on both average FEV1 AUC 0-4 hours and FEV1 AUC 0-12 hours. There was also a nebulizedstatistically significant improvement in average FEV1 AUC 0-12 hours of 87 mL for the 3.0 mg dose (p=0.0111), which we believe is supportive of twice daily dosing. Area Under the Curve over 0-12 hours post dose, or FEV1 AUC(0-12hr), was calculated using the trapezoidal rule, divided by the observation time (12 hours) to report in mL, a measure of the aggregate effect over 12 hours.
Additionally, clinically meaningful improvements in health-related quality of life as measured by St. George's Respiratory Questionnaire for COPD (mean SGRQ-C) were observed on top of tiotropium, exceeding the minimal clinically important difference (“MCID”) of 4 units compared to placebo at week 4, with the two highest doses 1.5 mg and 3 mg also achieving statistical significance.The SGRQ-C is a validated instrument that measures impact on overall health, daily life, and perceived well-being in patients with COPD (i.e. change in frequency and severity of COPD symptoms, and impact on activities, social functioning and psychological disturbances related to airways disease). Ensifentrine was well tolerated at all doses with an adverse event profile similar to placebo. We believe that these data support dose selection for our planned Phase 3 program, which we anticipate initiating in the third quarter of 2020, subject to FDA feedback and to funding.
We plan to meet with the FDA in the second quarter of 2020 for an End Of Phase 2 meeting, in which we intend to discuss our clinical data to date and determine the design of our Phase 3 clinical trials.
In August 2019, we announced results from our Phase 2 clinical trial evaluating a DPI formulation of ensifentrine for the maintenance treatment of patients with COPD. The magnitude of improvement in lung function, as measured by FEV1 was highly statistically significant and we believe this supports twice daily dosing of ensifentrine for COPD treatment. Secondary lung function endpoints were also met, and ensifentrine was well tolerated at all dose levels. We believe that delivery of ensifentrine with a hand-held inhalation device, such as the DPI format, could substantially expand the clinical utility and commercial opportunity in July 2017COPD treatment.
In January 2019, we commencedannounced top-line data from an exploratory Phase 2 three-way crossover pharmacological study in 79 moderate-to-severe COPD patients to study the effect of ensifentrine when added to dual bronchodilators (LAMA/LABA). The study was conducted in the United States and the United Kingdom. Patients were administered ensifentrine 1.5 mg or 6 mg or placebo twice daily for 3 days in addition to a four week Phase 2b dose-ranging clinical trialtiotropium/olodaterol fixed dose combination (Stiolto® Respimat®). Patients were allowed to remain on a stable dose of ICS. Data showed a tolerability and safety profile generally in Europe, whichline with previous studies. This study was conducted in the challenging setting of COPD patients treated with what is evaluating RPL554 asthought to be "maximal bronchodilator therapy". Although the primary endpoint of a single agent asstatistically significant improvement in morning peak FEV1 on the third day of dosing was not met, improvement in average FEV1 (additional bronchodilation) following the morning dose on the third day (0 - 4 hours) with 1.5 mg of ensifentrine was statistically significant when added on top of Stiolto® Respimat® compared to placebo added on top of Stiolto® Respimat® (1.5 mg, p=0.039). Statistically significant improvements in approximately 400 patientsevening peak FEV1 (additional bronchodilation) on the third day of dosing, and significant reductions in lung volume after the evening dose of ensifentrine were observed with moderate to severe COPD. We have now completed dosing in this studyboth the 1.5 mg and we expect to report top-line data from this trial early in the second quarter of 2018, earlier than previously guidance of mid-2018 and original guidance of second half of 2018.
In September 2017, we reported our Phase 2a clinical trial of nebulized RPL554 for the maintenance treatment of COPD in the United Kingdom. This trial evaluated RPL5546 mg dose groups, compared to placebo, as an add‑when administered on therapy to tiotropiumtop of Stiolto® Respimat® (evening peak FEV1: 1.5 mg, p<0.001; 6 mg p=0.002 (as shown in 30 patients. the graph below); post-evening dose residual volume: 1.5 mg, p=0.002; 6 mg, p=0.036).
In September 2017March 2018, we also reported data from our IND-opening single‑dose pharmacokinetic,Phase 2b parallel group study in 403 patients with COPD in Europe to examine the effect in patients without concomitant bronchodilator therapy. Patients in this study received either placebo or PK, trialensifentrine at doses ranging from 0.75 mg to 6 mg twice daily over 4 weeks. Treatment with ensifentrine met the primary endpoint for all doses, showing a statistically significant increase in peak FEV1

compared to placebo (p<0.001) with absolute changes from baseline >200 mL in peak FEV1 after 4 weeks of RPL554dosing. In addition, statistically significant improvements in approximatelyaverage FEV1 over 12 healthy volunteershours were observed at all doses after the first administration, and this effect was sustained over 4 weeks. Notably, statistically significant and clinically meaningful improvements in total COPD symptoms (p<0.002) and dyspnea (p<0.02) were shown using the US.EXACT - Respiratory Symptoms (E-RS), a recognized daily patient-reported outcome measure for use in clinical studies of COPD, as well as the Transition Dyspnea Index. We believe that the progressive improvement in COPD symptoms over the 4-week treatment period, which was different from the immediate onset of the bronchodilator response, suggests the involvement of an anti-inflammatory effect.
In March 2017,2018, we commencedreported top-line data from a Phase 2a single-dose PK and pharmacodynamics, or PD, trial in the United Kingdom evaluating RPL554ensifentrine in up to ten CF patients and expect to report top-line data from this trial late in the first quarter of 2018.patients. A PD trial involves the study of the biochemical and physiological effects of a drug and its mechanism of action, including the correlation of the drug's actions and effectsaction. The PK profile was consistent with its chemical structure. The results of this clinical trial will support dose selection for a proof-of-concept Phase 2b trialthat observed in approximately 100 patients with COPD, although with lower peak serum levels of ensifentrine in CF which we planpatients. The serum half-life was dose dependent: 7.5 to commence10.1 hours for the 1.5 mg and 6 mg doses, respectively. Ensifentrine elicited a statistically significant increase in 2018.average FEV1 in treated patients for the 1.5 mg dose (all time points, p<0.01) and the 6 mg dose (all time points p<0.05) at 4-, 6-, and 8-hour time points. Ensifentrine was observed to be well-tolerated in this patient group with an adverse event profile consistent with other studies with the compound.
We do not have any approved products and, as a result, have not generated any revenue from product sales or otherwise. RPL554Ensifentrine is our only current product candidate, and our ability to generate revenue sufficient to achieve profitability will depend on our successful development and eventual commercialization of RPL554,ensifentrine, if approved, for one or more of its targeted indications. Since our inception, we have incurred significant operating losses. For the years ended December 31, 20162018 and 20172019 we incurred net losses of £5.0£19.9 million and £20.5£32.0 million, respectively. As of December 31, 2017,2019, we had an accumulated loss of £49.3£100.6 million.
We expect to incur significant expenses and operating losses for the foreseeable future as we advance the clinical development of RPL554,ensifentrine, and seek regulatory approval and pursue commercialization of RPL554,ensifentrine, if approved. In addition, if we obtain regulatory approval for RPL554,ensifentrine, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution. In addition, we may incur expenses in connection with the in-license or acquisition of additional product candidates and the potential clinical development of any such product candidates.
As a result of these anticipated expenditures, we will need additional financing to support our continuing operations. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of public or private equity or debt financings or other sources, which may include collaborations with third parties. Adequate additional financing may not be available to us on acceptable terms, or at all. Our inability to raise capital as, and when needed would have a negative impact on our financial condition and our ability to pursue our business strategy. We will need to generate significant revenue to achieve profitability, and we may never do so.
We were incorporated in February 2005 and are headquartered in the United Kingdom. Since September 2006, our ordinary shares have traded on AIM, a market of the London Stock Exchange, under the symbol "VRP". We have raised approximately £145 million in gross proceeds from investors since such listing, of which approximately £70£70.3 million was raised in our initial public offering of our American Depositary Shares, or ADSs, in April and May 2017, which are listed on The Nasdaq listingGlobal Market, or Nasdaq, under the symbol “VRNA,” and the accompanying private offering in Europe of our ordinary shares, or the global offering, and a concurrent private placement to certain shareholders of our ordinary shares, or the shareholder private placement; we raised a furtherplacement, and £45 million was raised in our July 2016 private placement of equity securities with a number of European and U.S.-based healthcare specialist investment firms.firms, or the July 2016 Placement.

License Agreement with VernalisLigand (formerly Vernalis)
In February 2005, Rhinopharma Limited, or Rhinopharma, entered into an assignment and license agreement with Vernalis which weDevelopment Limited, or Vernalis (in October 2018, Vernalis was acquired by, and became a wholly owned subsidiary of, Ligand Pharmaceuticals, Inc., or Ligand). We refer to the assignment and license agreement as the VernalisLigand Agreement. In 2006, we acquired Rhinopharma and all of its rights and obligationsliabilities under the VernalisLigand Agreement. Pursuant to the VernalisLigand Agreement, VernalisLigand has assigned to us all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds, or the VernalisLigand Patents. VernalisWe cannot further assign the Ligand Patents to a third party without Ligand's prior consent. Ligand also granted to us an exclusive, worldwide, royalty-bearing license tounder certain VernalisLigand know-how to develop, manufacture and commercialize products, or the Licensed Products, based on PDE inhibitors developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds, including RPL554,ensifentrine, which we refer to as the Program IP, in the treatment of human or animal allergic or inflammatory disorders. Pursuant to the Ligand Agreement, we must maintain the Ligand Patents and use commercially reasonable and diligent efforts to develop and commercialize the Licensed Products.
Under the VernalisLigand Agreement, we are obligated to pay VernalisLigand a milestone payment of £5.0 million upon the first approval of any regulatory authority for the commercialization of any Licensed Product, and a portion equal to a percentage in the mid twentiesmid-twenties of any consideration received from any of our sublicensees for VernalisLigand Patents or VernalisLigand know-how, excluding royalties. We must also pay Vernalis,Ligand, on a Licensed Product-by-ProductProduct-by-Licensed Product and country-

by-countrycountry-by-country basis, a low to mid-single digit percentage royalty based on net sales of each Licensed Product. See "Business — Vernalis Agreement"Product for further information regarding this agreement.
We have recorded a liabilityperiod beginning with the first commercial sale of such Licensed Product in our statementa country and ending on the later of financial position reflecting the contingent obligation we assumed from Rhinopharmaexpiration of a certain number of years after such first commercial sale and if applicable the expiration of the last to make payments to Vernalis under the Vernalis Agreement. Any changeexpire valid claim in the carrying valueLigand Patents covering the development, manufacture or commercialization of this assumed contingent obligationsuch Licensed Product in such country. Prior to the first commercial sale of each Licensed Product, such royalties also are due in the same percentages for any reporting period is recorded as finance expensenamed patient sales.
The Ligand Agreement continues until terminated by either party in accordance with its terms. Either party may terminate the Ligand Agreement for an uncured material breach, bankruptcy or finance income ininsolvency of the other party. We may terminate the Ligand Agreement upon 90 days' prior written notice. Ligand may terminate the Ligand Agreement if we notify Ligand of our statementintention to abandon any Ligand Patents or allow any Ligand Patents to lapse. Upon termination of comprehensive income.the Ligand Agreement, we must cease use of any Program IP and assign the Ligand Patents and any improvements thereto back to Ligand. See "— Financial Operations Overview — Finance Income and Expense" and Note 2.12 of our Annual Consolidated Financial Statements.

Financial Operations Overview
Revenue
We do not have any approved products. Accordingly, we have not generated any revenue, and we do not expect to generate any revenue from the sale of any products unless or until we obtain regulatory approvals of and commercialize RPL554ensifentrine or any other product candidate we may develop in the future, which may never occur.
Research and Development Costs
Research and development costs include:
employee-related expenses, such as salaries, share-based compensation, benefits and travel expense, for our research and development personnel;
costs for production of drug substance by CMOs;contract manufacturing organizations;
fees and other costs paid to CROscontract research organizations and consultants to conduct our clinical trials and pre-clinical and non-clinical studies;
costs of related facilities, materials and equipment;
costs associated with obtaining and maintaining patents and other intellectual property; and
amortization and depreciation of intangible and tangible fixed assets used to develop RPL554.ensifentrine.
Research and development activities will continue to be central to our business model. Product candidates in later stages of clinical development, such as RPL554ensifentrine for the maintenance treatment of COPD, generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We expect our research and development costs to be significant over the next several years as we hire additional research and development personnel and increase compensation costs, advance the clinical development of RPL554,ensifentrine, develop new formulations of RPL554ensifentrine for the treatment of COPD, commencecontinue the clinical development of RPL554ensifentrine for the treatment of CF and asthma and potentially pursue the development of RPL554ensifentrine for other forms of respiratory disease, including asthma.disease.

The successful development and commercialization of RPL554ensifentrine is highly uncertain. At this time, we cannot reasonably estimate the nature, timing and estimated costs of the efforts that will be necessary to complete the development of, or the period, if any, in which material net cash inflows may commence from, RPL554ensifentrine or any future product candidates. This is due to numerous risks and uncertainties associated with developing drugs, including the uncertainty of:
the scope, rate of progress and expense of our research and development activities;
the progress and results of clinical trials and pre-clinical and non-clinical studies;
the terms and timing of regulatory approvals;
the expense of filing, prosecuting, defending and enforcing patent claims and other intellectual property rights; and
the ability to market, commercialize and achieve market acceptance for RPL554ensifentrine or any other future product candidate, if approved.
Any of these variables with respect to the development of RPL554ensifentrine or any other future product candidate that we may develop could result in a significant change in the costs and timing associated with the development of RPL554ensifentrine or

such future product candidate. For example, if the FDA, the EMA or other regulatory authority were to require us to conduct pre-clinical studies and clinical trials beyond those that we currently anticipate will be required for the completion of clinical development or if we experience significant delays in enrollment in any clinical trials, we could be required to expend significant additional financial resources and time on the completion of our clinical development programs.
General and Administrative Costs
Our general and administrative costs principally consist of salaries and related benefits, including share-based compensation, for personnel in our executive, finance and other administrative functions. Other general and administrative costs include facility-related costs and professional services fees for auditing, tax and general legal services, as well as expenses associated with the requirements of being a listed public company on AIM.AIM and Nasdaq. We expect that our general and administrative costs will increase in the future as our business expands and we increase our headcount to support the expected growth in our operating activities. These increases will likely include increased costs related to the hiring of additional personnel and fees to outside consultants, lawyers and accountants, among other expenses. Additionally, we anticipate continued increased costs associated with being a U.S. public company, including expenses related to services associated with maintaining compliance with Nasdaq rules and SEC requirements, director compensation, insurance and investor relation costs. If RPL554ensifentrine obtains regulatory approval for marketing, we expect that we will incur expenses associated with building a sales and marketing team. In addition, we expect to continue to grant share-based compensation awards to key management personnel and other employees.
Finance Income and Expense
Finance income consists of interest earned on our cash and cash equivalents and any decrease in the carrying value resulting from the remeasurement of the assumed contingent obligation under the Vernalis Agreement and any decrease in the fair value of the derivative financial liability related to the 31,115,926 units issued by us to new and existing institutional and other investors in July 2016, or the July 2016 Placement.
Finance expense consists of any increase in the carrying value resulting from the remeasurementunwinding of the discount factor related to the assumed contingent obligationarrangement under the VernalisLigand Agreement and any increase in the fair value of the derivative financial liability related to the July 2016 Placement.
Taxation
As a U.K. resident trading entity, we are subject to U.K. corporate taxation. Due to the nature of our business, we have generated losses since inception. As a company that carries out extensive research and development activities, we benefit from the U.K. research and development tax credit regime for small or medium sized entities and are currently able to surrender some of our trading losses that arise from our research and development activities for a cash rebate of up to 33.35% of eligible research and development expenditure. The amount of such rebates is currently under review and may in future be subject to certain additional conditions and/or a cap. Qualifying expenditures largely comprise employment costs for research staff, consumables and certain internal overhead costs incurred as part of research projects. In the event we generate revenues in the future, we may benefit from the "patent box" initiative that allows profits attributable to revenues from patents or patented products to be taxed at a lower rate than other revenue of 10%.

Critical Accounting Judgments and Estimates
Our discussion and analysis of our financial condition and results of operations is based on our financial statements, which we have prepared in accordance with IFRS as issued by the IASB. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported revenues and expenses during the reporting periods. Actual results may differ from these estimates under different assumptions or conditions. There have been no material adjustments to prior period estimates for any of the periods included in this Annual Report.
Our significant accounting policies are more fully described in the notes to our financial statements appearing elsewhere in this Annual Report. We believe that the following accounting policies are the most critical to aid you in fully understanding and evaluating our financial condition and results of operations.

Assumed Contingent ObligationLiability
A significant management estimate relates to the probability, amount and timing of any payment relating to the assumed contingent obligationliability under the VernalisLigand Agreement, a provision for which is recorded in our statement of financial position. See “- License Agreement with Vernalis,Ligand,” “Item 4.B. Business Overview - VernalisLigand Agreement” and Note 1820 to our Annual Consolidated Financial Statements included elsewhere in this Annual Report. A change in the probability and timing of any payment relating to the assumed contingent obligationliability could result in  a significant fluctuation in our financial results in future periods.
Share‑Based Compensation
We measure share options at fair value at their grant date in accordance with IFRS 2, “Share‑based Payment.” We calculate the fair value of the share options using the Black‑Scholes model. We charge the fair value to the statement of comprehensive income over the expected vesting period.
Impairment of Intangible Assets
Determining whether an intangible asset is impaired requires an estimation of whether there are any indications that its carrying value is not recoverable.
At each reporting date, we review the carrying value of our tangible and intangible assets to determine whether there is any indication that those assets have been impaired. If such an indication exists, the recoverable amount of the asset, being the higher of the asset’s fair value less costs to sell and value in use, is compared to the asset’s carrying value. Any excess of the asset’s carrying value over its recoverable amount is expensed to the income statement.
Valuation of Derivative Financial Liability
In connection with the July 2016 Placement, we issued 31,115,926 warrants to new and existing institutional and other investors. Each warrant is entitled to purchase 0.4 of an ordinary share at a price of £1.7238. Each warrant became exercisable upon the closing of the global offering and will expire on the fifth anniversary of the closing of the global offering.
We classify these warrants as a derivative financial liability to be presented on our consolidated statement of financial position. The fair value of these warrants is determined by applying the Black‑Scholes model. Assumptions are made on inputs such as time to maturity, the share price, volatility and risk free rate, in order to determine the fair value per warrant. For valuation purposes at recognition of the liability, we used the closing share price of our ordinary shares as reported on AIM on July 29, 2016, the date of issuance of the warrants.
At the date of issuance of the warrants we calculated a fair value and recorded a derivative financial liability, which on initial recognition was offset against the share premium in relation to the funds received in connection with the July 2016 Placement. Subsequent updates to the fair value of the derivative financial liability will not result in changes to share premium, but will result in an adjusting entry in the consolidated derivative financial liability statement of comprehensive income. We will continue to adjust the derivative financial liability until the earlier of the exercise of the warrants or expiration of the warrants occurs.
Off-Balance Sheet Arrangements
We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined in the rules and regulations of the SEC.
Recent Accounting Pronouncements
We refer to Note 2.182.19 to our Annual Consolidated Financial Statements for the year ended December 31, 20172019 included elsewhere in this Annual Report for a discussion of new standards and interpretations not yet adopted by us.

JOBS Act
In April 2012,Section 107(b) of the Jumpstart Our Business Startups Act of 2012 or the JOBS Act, was enacted. Section 107(b) of the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. Thus, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this extended transition period, and, as a result, we will adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for other public companies.
Internal Control Over Financial Reporting
In connection with the preparation for our listing on Nasdaq, we reassessed our critical accounting policies to ensure compliance with IFRS. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma in September 2006.
We concluded that a lack of adequate controls surrounding our historical accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standards established by the U.S. Public Accounting Oversight Board, or the PCAOB. The PCAOB defines a material weakness as a deficiency, or a combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not be prevented or detected in a timely basis. We have remediated this material weakness by the hiring of our chief financial officer in September 2016 and enhancing our financial reporting team. We have instituted a program of controls over financial reporting that will ensure we manage our financial reporting in accordance with good business practice and Sarbanes-Oxley legislation. However, we cannot be certain that these efforts will prevent future material weaknesses or significant deficiencies from occurring.


Results of Operations
A discussion of the year ended December 31, 2018, compared to the year ended December 31, 2017, has been reported previously in our Annual Report on Form 20-F for the year ended December 31, 2018, filed with the SEC on March 19, 2019, under the heading “Operating and Financial Review and Prospects.”
Comparison of Operations for the Years ended December 31, 20172019, and 20162018
The following table sets forth our results of operations for the periods indicated. For the convenience of the reader, we have translated pound sterling amounts as of December 31, 20172019 at the noon buying rate of the Federal Reserve Bank of New York on December 29, 2017,31, 2019, which was £1.00 to $1.3529.$1.3269. These translations should not be considered representations that any such amounts have been, could have been or could be converted into U.S. dollars at that or any other exchange rate as of that or any other date.
Year Ended December 31,Year Ended December 31,
2016 20172019 2018
£000's £000's $000's£'000s 


Comparison of Operations for the Years ended December 31, 20172019 and 20162018
The operating loss for the year ended December 31, 20172019 was £29.8£41.1 million (2016: £7.0(2018: £25.6 million) and the loss after tax for the year ended December 31, 20172019 was £20.5£31.9 million (2016: £5.0(2018: £19.9 million).
Research and Development Costs
Research and development costs were £23.7£33.5 millionfor the year ended December 31, 2019 as compared to £19.3 million for the year ended December 31, 20172018, an increase of £14.2 million. The cost of clinical trials increased by £12.7 million as there were two active trials in the year ended December 31, 2018, compared to £4.5four clinical trials in the year ended December 31, 2019. Pre-clinical costs increased by £0.3 million which was offset by a reduction in contract manufacturing and formulation development costs by £0.4 million. Personnel related costs increased by £1.3 million in the year ended December 31, 2019, compared to the prior year.
General and Administrative Costs
General and administrative costs were £7.6 million for the year ended December 31, 2016, an increase of £19.2 million. The increase was attributable2019 as compared to a £12.3 million increase in clinical trial expenses related to the initiation of four, and completion of two, Phase 2 clinical trials of RPL554. In addition we increased spending on contract manufacturing and other formulation work by £2.7 million and toxicology and other pre-clinical development by £1.2m. Our salary costs increased by £0.3m and our share-based payment charge by £1.2 million as we expanded our team and initiated a new long term incentive plan to drive development of RPL 554. Furthermore, our spend on third party consultants increased by £0.8 million and patent and other costs by £0.3 million.
General and Administrative Costs
General and administrative costs were £6.0£6.3 million for the year ended December 31, 2017 as compared to £2.5 million for the year ended December 31, 2016, 2018, an increase of £3.5£1.3 million. The increase was primarily attributable to £0.8a £0.9 million increase in our salarycosts relating to commercial market research, a £0.3 million increase in personnel related costs and a £1.1£0.6 million increase in our share-based payment charge as we built the team to support the activities of the Company. Thereother overhead costs. This was an increase of £1.3offset by a £0.5 million of costsdecrease in preparation for and relating to the Global Offering, as well as ongoing compliance and other costs due to listing our ADSs on the Nasdaq stock market. We also incurred costs of £0.4 million developing our commercial strategy for RPL 554.share based payments.
Finance Income and Expense
Finance income was £7.0£2.4 million for the year ended December 31, 20172019 and £1.8£2.8 million for the year ended December 31, 2016.2018. The decrease was due to a loss in foreign exchange on cash and short term investments (recorded as a finance expense) compared to £1.9 million gain in the prior year. This was offset by a £1.6 million decrease in the fair value of the warrant liability in the year ended December 31, 2019 compared to an increase in the liability in the year ended December 31, 2018 (which is a non-cash item, recorded as a finance incomeexpense).
Finance expense was primarily£0.5 million for the year ended December 31, 2019, as compared to £1.3 million for the year ended December 31, 2018. The movement was due to a decrease in the fair value of the warrant liability (recorded in finance income), compared to an increase of £6.6£1.2 million caused by changesDecember 31, 2018, both non-cash items. In addition, there was a foreign exchange loss on cash and short-term investments in the underlying assumptions for measuring the liabilityDecember 31, 2019 of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £2.5 million for£0.3 million. In the year ended December 31, 2017 as compared to £0.8 million for the year ended December 31, 2016. The increase2018, there was primarily due to thea foreign exchange loss on translation of foreign currency denominated cash and cash equivalents and short term investments.gain (recorded in finance income).
As at December 31, 2017 the Company had2019, there was approximately £31.4£22.9 million in cash and cash equivalents (2016: £39.8(2018: £19.8 million) and £48.8£7.8 million in short termshort-term investments (2016: £nil)(2018: £44.9 million).
Taxation
Taxation for the year ended December 31, 20172019 amounted to a credit of £4.7£7.3 million as compared to a credit of £1.0£4.2 million for the year ended December 31, 2016,2018, an increase in the credit amount of £3.7£3.1 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the increase in the credit amount was primarily attributable to our increased expenditure on research and development.



Comparison of Operations for the Years ended December 31, 2016 and 2015
The following table sets forth our results of operations for the periods indicated.
 Year Ended December 31,
 20152016
 £000's £000's
Research and development costs(7,270) (4,522)
General and administrative costs(1,706) (2,498)
Operating loss(8,976) (7,020)
Finance income45
 1,841
Finance expense(73) (794)
Loss before taxation(9,004) (5,973)
Taxation — credit1,509
 954
Loss for the year(7,495) (5,019)
Other comprehensive income:   
Exchange differences on translating foreign operations4
 43
Total comprehensive loss attributable to owners of the company(7,491) (4,976)
Comparison of Operations for the Years ended December 31, 2016 and 2015
Research and Development Costs
Research and development costs were £4.5 million for the year ended December 31, 2016 as compared to £7.3 million for the year ended December 31, 2015,  a decrease of £2.8 million. The decrease was attributable to a £3.6 million decrease in clinical trial expenses related to the completion of our Phase 2a clinical trials of RPL554 in late 2015 and early 2016, which were partially offset by a £0.7 million increase in research and development personnel costs and a £0.1 million increase in pre-clinical research, contract manufacturing, patent and other costs.
General and Administrative Costs
General and administrative costs were £2.5 million for the year ended December 31, 2016 as compared to £1.7 million for the year ended December 31, 2015, an increase of £0.8 million. The increase was attributable to a £0.2 million increase in personnel costs, a £0.3 million increase in professional service fees and expenses, and a £0.2 million increase in other facility and office related costs.
Finance Income and Expense
Finance income was £1.8 million for the year ended December 31, 2016 and £45 thousand for the year ended December 31, 2015. The increase in finance income was primarily due to a decrease in the fair value of the warrant liability of £1.1 million caused by changes in the underlying assumptions for measuring the liability of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £0.8 million for the year ended December 31, 2016 as compared to £0.1 million for the year ended December 31, 2015. The increase was primarily due to the inclusion of the proportion of expenses incurred in connection with the July 2016 Placement which related to the issue of warrants, and which were recorded as a finance expense (the remainder of the July 2016 Placement expenses related to the equity issued and were recorded as a charge against share premium), as well as an increase in the calculated value of the assumed contingent obligation resulting from the Vernalis Agreement.
Taxation
Taxation for the year ended December 31, 2016 amounted to a credit of £1.0 million as compared to a credit of £1.5 million for the year ended December 31, 2015, a decrease in the credit amount of £0.5 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the decrease in the credit amount was primarily attributable to our decreased expenditure on research and development.

B. Liquidity and Capital Resources
Overview
Since our inception, we have incurred significant operating losses. We anticipate that we will continue to incur losses for at least the next several years. We expect that our research and development and general and administrative costs will increase in connection with conducting clinical trials for RPL554 and seeking marketing approval for RPL554 in the United States and Europe as well as other jurisdictions. As a result, we will need additional capital to fund our operations, which we may obtain from additional financings, research funding, collaborations, contract and grant revenue or other sources.
We do not currently have any approved products and have never generated any revenue from product sales or otherwise. To date, we have financed our operations primarily through the issuances of our equity securities, including warrants. Since our
The Company has incurred recurring losses since inception, we raised gross proceedsincluding net losses of approximately £145£31.9 million, from private placements of equity securities, of which approximately £70£19.9 million was raised in Apriland £20.5 million for the years ended December 31, 2019, 2018 and 2017, through our Nasdaq listing and the accompanying private offering in Europe and the shareholder private placement; we raised a further £45 million raised in our July 2016 private placement of equity securities with a number of European and U.S.-based healthcare specialist investment firms. Asrespectively. In addition, as of December 31, 2017, we2019, the Company had an accumulated loss of £100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that its cash and cash equivalents, would be sufficient to fund its operating expenses and capital expenditure requirements for at least 12 months from the issuance date of £31.4 million. Asthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of December 31, 2017 weassets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional finance on acceptable terms, or at all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also held short term investments (representing bank deposits with maturitiesforce the Company to delay, reduce or eliminate some or all of greater than 3 months at inception)its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of £48.8 million.operations and financial condition.
We have no ongoing material financing commitments, such as lines of credit or guarantees, that are expected to affect our liquidity over the next five years, other than leases.
Cash Flows
The table below summaries our cash flows for each of the periods presented. For the convenience of the reader, we have translated pound sterling amounts as of December 31, 2019 at the noon buying rate of the Federal Reserve Bank of New York on December 31, 2019, which was £1.00 to $1.3269. These translations should not be considered representations that any such amounts have been, could have been or could be converted into U.S. dollars at that or any other exchange rate as of that or any other date.
Year Ended December 31,Year Ended December 31,
2016 20172019 2018
£000's
 £000's
 $000's
£'000s
 
The decreaseincrease in net cash used in operating activities to £20.7£33.8 million for the year ended December 31, 20172019, from £5.6£18.1 million for the year ended December 31, 20162018, was primarily due to an increase in loss before taxation driven by higher research and development costs.
Theoperating activities of £15.5 million, which principally comprises the increase in netclinical trial and other research expenditure amounting to £14.2 million together with an increase in General and Administrative expenditure of £1.3 million, each of which are described further above.
Net cash used in(used in) / generated from investing activities to £49.5predominantly reflects the net movement of cash being placed on deposit for more than three months and such deposits maturing, because deposits of more than three months are disclosed as short-term investments, separately from cash. Net cash generated from investing activities was £37.8 million for the year ended December 31, 20172019, compared to net cash generated from £41 thousandinvesting activities of £5.3 million for the year ended December 31, 20162018. In 2019, there was duea net decrease in short-term deposits of three months or more reflecting a higher value of short-term deposits maturing, and being transferred to placing funds raised incash, than being placed. We balance the Global Offering on termobjective of obtaining higher interest income from longer-term deposits with maturitiesshort-term liquidity requirements.

There was £0.4 million repayment of more than three months at inception.
The net cash of £63.2 million received fromfinance lease liabilities in financing activities to for the year ended December 31, 2017 was the cash raised from the Global Offering. The £41.2 million received2019, relating to payments for leased office space. There were no financing activities for the year ended December 31, 2016 was the cash received from the sale of our equity securities and warrants in connection with the July 2016 Placement.2018.
Operating and Capital Expenditure Requirements
As of December 31, 2017,2019, we had an accumulated loss of £49.3£100.6 million. We expect to continue to incur significant operating losses for the foreseeable future as we continue our research and development efforts and seek to obtain regulatory approval and commercialization of RPL554ensifentrine and any future product candidate we develop.
We anticipate that our expenses will increase substantially if and as we:

initiate and conduct our plannedPhase 3 clinical trials for RPL554ensifentrine for the maintenance treatment of COPDCOPD;
continue the clinical development of our DPI and as a treatment for acute COPD;pMDI formulations of ensifentrine and research and develop other formulations of ensifentrine;
initiate and conduct our plannedfurther clinical trials for RPL554ensifentrine for the treatment of CF;
continue the research and development ofacute COPD, CF or any other formulations of RPL554, including developing our DPI andpMDI formulations of RPL554;indication;
initiate and progress pre-clinical studies relating to other potential indications of RPL554;ensifentrine;
seek to discover and develop additional product candidates;
seek regulatory approvals for any of our product candidates that successfully completescomplete clinical trials;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize any products for which we may obtain regulatory approval;
maintain, expand and protect our intellectual property portfolio;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts and to support our continuing operations as a UK and U.S. public company listed on the Nasdaq;company; and
experience any delays or encounter any issues from any of the above, including but not limited to failed studies, complex results, safety issues or other regulatory challenges.
We expectThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had an accumulated loss of £101.1 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that our existingits cash and cash equivalents, and short-term investments will enable uswould be sufficient to fund ourits operating expenses and capital expenditure requirements throughfor at least 12 months from the endissuance date of ourthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 2 development of nebulized RPL554 and our proof-of-concept development with DPI and pMDI formulations of RPL5543 program for the maintenance treatment of COPD as well as our Phase 2 development of nebulized RPL554once it believes it has alignment with the FDA on its planned design for the treatment of CF. We have basedPhase 3 clinical program. The Company will require significant additional funding to initiate and complete this estimate on assumptions that may prove to be wrong,Phase 3 program and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of RPL554 and any future product candidates and because the extent to which we may enter into collaborations with third parties for development of RPL554 is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of RPL554. Our future capital requirements for RPL554 or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for RPL554 or any future product candidates and the potential that we may be required to conduct additional clinical trials for RPL554;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of RPL554 or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for RPL554 or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to RPL554 any future product candidates;
any licensing or milestone fees we might have to pay during future development of RPL554 or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of RPL554 or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of RPL554 or any future product candidates, if approved.

Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantialsecure the required capital to fund the program.   The Company will seek additional funds to achieve our business objective.
Adequatefunding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional funds may not be available to usfinance on acceptable terms, or at all. all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial condition.
To the extent that we raise additional capital through the sale of equity or convertible debt securities, yourthe ownership interest of our shareholders and ADS holders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect yoursuch holders’ rights as a shareholder.shareholder or ADS holder. Any future debt financing or preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute yourour security holders’ ownership interests.

If we raised additional funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.
Our future capital requirements for ensifentrine or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for ensifentrine or any future product candidates and the potential that we may be required to conduct additional clinical trials for ensifentrine;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of ensifentrine or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for ensifentrine or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to ensifentrine or any future product candidates;
any licensing or milestone fees we might have to pay during future development of ensifentrine or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of ensifentrine or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of ensifentrine or any future product candidates, if approved.
Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantial additional funds to achieve our business objective.
C. Research and Development, Patent and Licenses, etc.
For a discussion of our research and development activities, including amounts spent on company-sponsored research and development activities for the last three financial years, see “ItemItem 4.B. Business Overview”Overview and “ItemItem 5.A. Operating Results.
D. Trend Information
Other than as disclosed elsewhere in this Annual Report, we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our net revenues, income from continuing operations, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions. For more information, see “ItemItem 4.B. Business Overview,” “Item Item 5.A. Operating Results, and “ItemItem 5.B. Liquidity and Capital Resources.
E. Off-Balance Sheet Arrangements
During the periods presented, we did not, and we do not currently, have any off-balance sheet arrangements.
F. Contractual Obligations and Commitments
The table below summarizes ourCompany has contractual obligations at December 31, 2017.
 Payments Due by Period
 Total 
Less than
1 year
 
1 - 3
years
 
3 - 5
years
 
More than
5 years
 (£000's)
Operating lease obligations568
 291
 277
 £— £—
Total568
 291
 277
 £— £—
commitments for office space, in London and New York. After the adoption of IFRS 16 these are recognized as right of use assets on the Consolidated Statement of Financial Position. As a result they are not disclosed as operating lease liabilities.
The table above does not includeCompany has assumed contingent obligationliability payments we may be required to make under the VernalisLigand Agreement because the amount, timing and likelihood of payment are not known. Such additional payment obligationsliabilities may be material. See sections titled "— License Agreement with Vernalis"Ligand" and "Business — VernalisLigand Agreement."

In addition, we enter into contracts in the ordinary course of business with contract research organizations, ("CROs")or CROs, to assist in the performance of our research and development activities and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the table of contractual obligationsliabilities and commitments.



Selected Quarterly Financial Data (unaudited)
Selected quarterly results from operations for the year ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts).
 Fiscal 2017 Quarter Ended
 December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017
 £'000s £'000s £'000s £'000s
Research and development costs9,689
 6,085
 4,838
 3,105
General and administrative costs998
 2,040
 1,969
 1,032
 Fiscal 2016 Quarter Ended
 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
 £'000s £'000s £'000s £'000s
Research and development costs1,868
 1,409
 522
 723
General and administrative costs1,085
 752
 350
 311


ITEM 6: DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
A. Executive Officers and Directors
The following table presents information about our executive officers, directors, and directors,other key members of management, including their ages as of February 27, 2017:

the date of this Annual Report:
Name Age Position
Executive Officers    
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharm.D. 6355 President, Chief Executive Officer and Director
Piers Morgan 5153 Chief Financial Officer
Kenneth Newman,Claire Poll52General Counsel
Kathleen Rickard, M.D. 6061 Chief Medical Officer
Peter Spargo, Ph.D.Other Key Management 56
Richard Hennings50Vice President and Commercial Head
Desiree Luthman60Vice President, Regulatory Affairs
Tara Rheault44Vice President, R&D Operations and Global Project Management
Peter Spargo58 Senior Vice President, Chemistry Manufacturing and Controls
Claire Poll51Legal Counsel
Richard Hennings48Commercial Director
Desiree Luthman58Vice President, Regulatory Affairs
Non-Executive Directors    
Ken Cunningham, M.D.(2)
67Non-executive Director
David Ebsworth, Ph.D.(1,2,3)
 6365 Chairman of the Board
Ken Cunningham, M.D.(2)
65Non-executive Director
Rishi Gupta(2)
 4042 Non-executive Director
Mahendra Shah, Ph.D.(3)
 7375 Non-executive Director
Andrew Sinclair, Ph.D.(1)
 4648 Non-executive Director
Vikas Sinha(1)
 5456 Non-executive Director
Anders Ullman, Ph.D.(3)
 6264Non-executive Director
Martin Edwards, M.D.64 Non-executive Director
(1)Audit and Risk Committee member
(2)Remuneration Committee member
(3)Governance Committee member
The current business addresses for our executive officers and board of directors is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE, the United Kingdom.
The following are brief biographies of our executive officers and directors:
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharma.D. Dr. KarlssonZaccardelli has served as our President and Chief Executive Officer and on our board of directors since June 2012.February 2020. From January 2005December 2018 until its acquisition by Swedish Orphan Biovitrum for up to May 2012,$915 million in November 2019, Dr. KarlssonZaccardelli served as President and CEO of Dova Pharmaceuticals, a US company developing therapeutics for rare diseases. Previously, he was Acting CEO of Cempra, from December 2016 until the company’s merger with Melinta Therapeutics in November 2017. From 2004 until 2016, Dr Zaccardelli served in several senior management roles at United Therapeutics Corporation, including Chief ExecutiveOperating Officer, of S*BIO Pte Ltd, a biotechnology company in Singapore. Previously to S*BIO, Dr. Karlsson wasChief Manufacturing Officer and Executive Vice President, Pharmaceutical Development and headOperations. Prior to United Therapeutics, he founded and led a start-up company focused on contract research positions and held a variety of Pharma Global Researchclinical research positions at Bayer HealthCare AG in Germany.Burroughs Wellcome & Co, Glaxo Wellcome, and Bausch & Lomb Pharmaceutical. Dr. KarlssonZaccardelli received an M.Sc. in pharmacy from Uppsala University and a Doctor of Medical Science (Ph.D.) in clinical experimental pharmacologyPharm.D. from the University of Lund.Michigan.
Piers Morgan. Mr. Morgan has served as our Chief Financial Officer since September 2016. From November 2015 to September 2016, Mr. Morgan was an independent consultant. From May 2014 to November 2015, Mr. Morgan was the Chief Executive Officer of C4X Discovery plc, a biotechnology company. Prior to C4X, Mr. Morgan co-founded uniQure N.V., a biotechnology company, in Amsterdam, where he served as Chief Financial Officer from December 2009 to May 2014. Mr. Morgan is a member of the Institute of Chartered Accountants in England and Wales and received an M.A. in law and management studies from the University of Cambridge.
Kenneth NewmanKathleen Rickard, M.D. , M.D.Dr. NewmanRickard has served as our Chief Medical Officer since January 2015. From December 2013February 2019. Prior to December 2014,joining Verona Pharma, Dr. Newman was Chief Development OfficerRickard served in multiple roles at Mesoblast Inc.,Aerocrine AB, a biotechnology company. From 2010 to November 2013, Dr. Newman wasmedical diagnostics product company, including as Chief Medical Officer from April 2011 to January 2019, and as Chief Compliance Officer from April 2014 to January 2019. Prior to Aerocrine, Dr. Rickard was Vice President Clinical Development and Medical Affairs of Acton Pharmaceuticals, Inc.,the Respiratory Medicines Development Centre at GlaxoSmithKline, a specialtypharmaceutical

company, and, over a period of 15 years, held a number of other leadership positions in clinical development across GlaxoSmithKline’s global respiratory pharmaceutical company, which was acquired by Meda Pharmaceuticals, Inc.franchise. Dr. NewmanRickard received an M.D. from theHahnemann University of Texas Health Science Center at Houston and an M.B.A. in management from the University of Cincinnati College of Business.
Peter Spargo, Ph.D. Dr. Spargo has served as our Senior Vice President, Chemistry Manufacturing and Controls since May 2014. From January to October 2015, Dr. Spargo also served as Senior Vice President, CMC at Spinifex Pharmaceuticals Inc., a biotechnology company, that was acquired by Novartis International AG. From 2011 to 2013, Dr. Spargo was Senior Vice President, CMC at Creabilis SA, a pharmaceutical company. Dr. Spargo received an M.A. in natural sciences and a Ph.D. in synthetic organic chemistry from Cambridge University.Hospital, Philadelphia.
Claire Poll. Ms. Poll has served as LegalGeneral Counsel since September 2016. From September 2015 to August 2016, Ms. Poll served as an advisor to us on legal, general corporate and financing matters. She also served as an

Executive Director on our board of directors from September 2006 until September 2015. Ms. Poll received a Bachelor of Laws from the University of Western Australia and a Diploma in Applied Finance and Investment from the Securities Institute of Australia.
Desiree Luthman, DDS.David Ebsworth,Ph.D. Dr LuthmanDr. Ebsworth has served as the Non-Executive Chairman of our Vice President, Regulatory Affairsboard of directors since June 2017.December 2014. From October 2009 to August 2014, Dr. LuthmanEbsworth served as Chief Executive Officer of Vifor Pharma, based in Zürich, the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012, Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. In his earlier career, Dr. Ebsworth worked with Bayer AG for over 19 years, heading the Canadian, North American and global pharmaceutical business. He also served as Chief Executive Officer of Oxford Glycosciences, a biotech company, listed on the London Stock Exchange and Nasdaq, which was acquired by Celltech plc (now part of UCB) in 2003. Dr. Ebsworth received a Ph.D. in industrial relations from the University of Surrey.
Ken Cunningham, M.D. Dr. Cunningham has served as a Non-Executive Director on our board of directors since September 2015. Dr. Cunningham has over 25 years’ experience in the pharmaceutical industry including leadership roles at several companies focused on developing respiratory medicines. Between 2008 and 2010, he was at SkyePharma plc (now part of Vectura Group plc), initially as Chief Operating Officer and subsequently as Chief Executive Officer where he was involved in the late-stage development of flutiform for asthma. Earlier in his career, Dr. Cunningham held a variety of clinical development and commercial strategy roles at GlaxoWellcome plc and Warner-Lambert. Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena Holdings (US) LLC and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Martin Edwards, M.D. Dr. Edwards has served as a Non-Executive Director on our board of directors since April 2019. Since 2003, Dr. Edwards has held various positions at Novo Holdings, a life sciences investment firm, and most recently as part-time Senior Partner. Earlier in his career, he was Corporate VP and Global Head of Drug Development for Novo Nordisk, where he led all aspects of pre-clinical and clinical drug development. Dr. Edwards currently serves on the boards of directors of Kalvista Pharmaceuticals Inc, F2G Ltd, Harmony Biosciences Inc, Karus Therapeutics Ltd, Nuvelution Pharma Inc, and Vantia Therapeutics Ltd. Dr. Edwards trained in physiology and medicine at the University of Manchester. He is a Member of the Royal College of Physicians, a Member with distinction of the Royal College of General Practitioners, a Fellow of the Faculty of Pharmaceutical Medicine and holds a MBA from the University of Warwick.
Rishi Gupta. Mr. Gupta has served as a Non-Executive Director on our board of directors since July 2016. Mr. Gupta was designated for appointment to our board of directors by OrbiMed Private Investments VI, LP, or OrbiMed, pursuant to our relationship agreement with OrbiMed. Since 2002, Mr. Gupta has held various positions at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Partner. Prior to that, he was a healthcare investment banker at Raymond James & Associates, served as manager of corporate development at Veritas Medicine and was a summer associate at Wachtell, Lipton. Mr. Gupta currently is a member of the board of directors of Avitide, Inc., Turnstone Biologics, Inc., Attenua, Inc, EnLiven Therapeutics, Inc, and Pionyr Immunotherapeutics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016. Dr. Shah was designated for appointment to our board of directors by funds affiliated with Vivo Capital pursuant to our relationship agreement with such funds. Dr. Shah is a successful pharmaceutical entrepreneur and executive and, since March 2010, has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah serves as a member of the board of directors of Scilex Pharmaceuticals, Inc., Fortis Inc., Citrine Medicines, Inc., and several private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India.
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Dr. Sinclair was designated for appointment to our board of directors by Abingworth Bioventures VI, LP, or Abingworth, pursuant to our relationship agreement with Abingworth.Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received

a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Mr. Sinha has over 20 yearsyears’ experience working in executive finance roles in the life sciences industry. Mr. Sinha is co-founder and Chief Financial Officer of regulatory experienceElevateBio, Inc., a holding company focused on building cell and gene therapy companies. He also serves as President and Chief Financial Officer of AlloVir, Inc., an ElevateBio portfolio company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of Alexion Pharmaceuticals, Inc., a biotechnology company, where he was responsible for finance, business development, strategy, investor relations and IT. Prior to joining Alexion, Mr. Sinha held various positions with Bayer AG in the United States, Japan, Germany and Canada, including both largeVice President and small pharmaceutical companies across different regionsChief Financial Officer of Bayer Pharmaceuticals Corporation in the United States and different therapeutic areas. From 2015 to 2017,Vice President and Chief Financial Officer of Bayer Yakuhin Ltd. in Japan. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. LuthmanUllman has served as Senior Regulatorya Non-Executive Director Global Inflammation - Immunocology Therapeutic Areaon our board of directors since September 2015. From 2016 to 2018, Dr. Ullman served as Head of the COPD Centre at Sanofi.Sahlgrenska University Hospital, Sweden. From 2013 to 2015,2014, he was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 2007 to 2013, Dr. LuthmanUllman was Executive Vice President, Head of Research and Development at Nycomed Pharma Private Limited (now part of Takeda Pharmaceuticals Company Limited), where he led the development and approval of Daxas, the PDE4 inhibitor used to prevent COPD exacerbations. Earlier in his career, he held a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb.number of roles in AstraZeneca. Dr. LuthmanUllman serves on the board of directors of Pexa AB. Dr. Ullman received a doctorateM.D. and a Ph.D. in dentistryclinical pharmacology from the Karolinska Institute, Stockholm, Sweden.University of Gothenburg.
Other Senior Management
The following are brief biographies of other members of the senior management team that participate in leading ensifentrine's development.
Richard Hennings. Mr. Hennings has served as ourVice President and Commercial DirectorHead since March 2017. From May 2016 to March 2017, Mr. Hennings was the Global Marketing Director for AstraZeneca UK Limited, a biopharmaceutical company. Since July 2015, Mr. Hennings has been a director of Hennings Consulting Ltd., where he consults with healthcare organizations on commercial strategy. From January 2012 to June 2015, Mr. Hennings held various positions at Gilead Sciences, Inc., a biopharmaceutical company, most recently as Commercial Director — EMEA Planning & Operations. Mr. Hennings received a bachelor's degree in applied chemistry from the University of Portsmouth.
David Ebsworth,Desiree Luthman, DDS. Dr. Luthman has served as our Vice President, Regulatory Affairs since June 2017. From 2015 to 2017, Dr. Luthman served as Senior Regulatory Director, Global Inflammation — Immunoncology Therapeutic Area at Sanofi S.A., a multinational pharmaceutical company. From 2013 to 2015, Dr. Luthman was a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb Company, a pharmaceutical company. Dr. Luthman received a doctorate in dentistry from the Karolinska Institute, Stockholm, Sweden.
Tara Rheault, Ph.D. Dr. EbsworthRheault has served as our Vice President, R&D and Global Project Management since January 2019. From August 2015 to January 2019, Dr. Rheault served as Senior Director, Strategic Drug Development at IQVIA, a multinational company serving the Non-Executive Chairmancombined industries of our board of directors since December 2014. From October 2009health information technologies and clinical research, where she helped pharmaceutical companies develop integrated commercial and R&D strategies. Prior to IQVIA, from September 2002 to August 2014,2015, Dr. EbsworthRheault served in various roles at GlaxoSmithKline, most recently as Chief Executive Officer of Vifor Pharma, based in Zürich,Clinical Leader within the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012,respiratory therapy area. Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. Dr. EbsworthRheault received a Ph.D. in industrial relationsorganic chemistry from North Dakota State University and a Master in Public Health from the University of Surrey.North Carolina.
Ken Cunningham, M.D.Peter Spargo, Ph.D. Dr. CunninghamSpargo has served as a Non-Executive Director on our board of directorsSenior Vice President, Chemistry Manufacturing and Controls since September 2015.May 2014. From January to October 2015, Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena plc and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Rishi Gupta. Mr. Gupta hasSpargo served as a Non-Executive Director on our board of directors since July 2016.  Since 2002, Mr. Gupta has held various positionsSenior Vice President, CMC at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Private Equity Partner. Mr. Gupta currently is a member of the board of directors of Avitide, Inc. and Turnstone Biologics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from the Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016.  Since March 2010, Dr. Shah has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah is also the founder and Executive Chair of Semnur Pharmaceuticals, Inc., a specialty pharmaceutical company. Dr. Shah serves as a member of the board of directors of Fortis Inc., a specialty pharmaceuticals company, Crinetics Pharmaceuticals, Inc., Soleno Therapeutics, Inc., Impel Neuropharma, Inc., and several other private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Since January 2018, Mr. Sinha has served as an Executive Partner of MPM Capital, Inc., a life sciences investment company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of AlexionSpinifex Pharmaceuticals Inc., a biotechnology company. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. Ullman has served as a Non-Executive Director on our board of directors since September 2015. Since 2016, he has served as Head of the COPD Centre at Sahlgrenska University Hospital,

Sweden.company, that was acquired by Novartis International AG. From 2013 to 2014, Dr. Ullman was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 20072011 to 2013, Dr. UllmanSpargo was ExecutiveSenior Vice President, Head of Research and DevelopmentCMC at Nycomed Pharma Private Limited, which was acquired by Takeda Pharmaceutical Company Limited.Creabilis SA, a pharmaceutical company. Dr. UllmanSpargo received a M.D.an M.A. in natural sciences and a Ph.D. in clinical pharmacologysynthetic organic chemistry from the University of Gothenburg.Cambridge University.
Family Relationships
There are no family relationships among any of the members of our board of directors and executive officers.

B. Compensation
Executive Officer Remuneration
The following table sets forth the approximate remuneration paid during the year ended December 31, 20172019, to our current executive officers.officers, who are the members of our administrative, supervisory, and management bodies.
Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation
(£)
 
Total
(£)
Jan-Anders Karlsson, Ph.D.290,000
 254,000
 1,632,055
 29,165
(3) 
 2,205,220
Chief Executive Officer         
Piers Morgan(4)
210,000
 73,500
 945,464
 12,600
(3) 
 1,241,564
Chief Financial Officer         
Kenneth Newman, M.D. 273,221
 53,581
 937,718
 21,987
(4) 
 1,286,508
Chief Medical Officer         
Peter Spargo, Ph.D. 190,000
 46,550
 641,564
 
  878,114
Senior Vice President of Chemistry, Manufacturing and Controls         
Claire Poll170,000
 59,650
 574,033
 4,517
(3) 
 808,200
Legal Counsel         
Richard Hennings119,231
 36,200
 198,258
 7,154
(3) 
 360,843
Commercial Director         
Desiree Luthman(5)
113,743
 22,884
 126,756
 
  263,383
Vice President, Regulatory Affairs         
Total1,366,195
 546,365
 5,055,849
 75,422
  7,043,832


Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation(3)
(£)
 
Total
(£)
David Zaccardelli
 
 
 
 
President and Chief Executive Officer (4)
         
Piers Morgan243,000
 59,535
 179,413
 14,580
 496,528
Chief Financial Officer         
Kathleen Rickard272,901
 263,227
 265,132
 5,307
 806,567
Chief Medical Officer         
Claire Poll214,000
 67,410
 128,151
 6,420
 415,981
General Counsel         
Total729,901
 390,172
 572,696
 26,307
 1,719,076
(1) 
Amount shown reflectsreflect bonuses awarded for achievement of performance goals, including retention bonuses in 2017.2019. 
(2) 
Amount shown represents the aggregate grant date fair value of option and restricted stockshare units awards granted in 20172019 measured using the Black Scholes model. For a description of the assumptions used in valuing these awards, see note 16 to our Annual Consolidated Financial Statements included elsewhere in this prospectus.Annual Report. 
(3) 
Amount shown represents health benefits payments and pension contributions made by us.
(4) 
Amount shown represents health benefits payments made by us. Dr. Zaccardelli was appointed as our President and Chief Executive Officer, effective as of February 1, 2020.
(5)

Mrs Luthman began her employment with us on June 12, 2017.
Executive Officer Employment Agreements
Jan-Anders Karlsson, Ph.D.David S. Zaccardelli, Pharm.D.
We entered into an employment agreement with Dr. KarlssonZaccardelli on April 30, 2012, which was subsequently amended.February 1, 2020. This agreement as amended, entitles Dr. KarlssonZaccardelli to receive an annual base salary of £290,000$750,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Annual RSUs, and a target annual bonus opportunity of 66%50% of his annual base salary. The Annual RSUs vest in equal quarterly installments during the calendar year in which the grant occurs, subject to continued employment. Pursuant to his employment agreement, Dr. Zaccardelli is also entitled to receive (i) an award of restricted stock units, subject to approval at our annual general meeting of shareholders in 2020, equal to 4% of our outstanding ordinary shares and (ii) an additional award of restricted units if the Company raises additional equity capital during fiscal year 2020, which is intended to result in Dr. Zaccardelli’s equity awards (other than the portion of his base salary (potentially extendingpayable in restricted stock units) being equal to up4% of our outstanding ordinary shares on the applicable date of issuance. These awards of restricted stock units will vest as to 132%)25% on the first anniversary of Dr. Zaccardelli’s employment commencement date and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment.
If Dr. Zaccardelli’s employment is terminated by us without "Cause" or by Dr. Zaccardelli for "Good Reason" (as each such term is defined in his offer agreement), withthen, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) 18 months (or 12 months if the amounttermination occurs after the second anniversary of any such bonus based on annual performance criteria to be agreed between usMr. Zaccardelli’s employment commencement date) of base salary continuation and Dr. Karlsson. By June 1, 2017, Dr. Karlsson was required to investcontinued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to £130,000 in our company through150% (or 100% if the purchasetermination occurs after the second anniversary of our ordinary shares. Dr. Karlsson is also entitled to participate in

a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate theZaccardelli’s employment agreement by giving the other party not less than 12 months' written notice, provided that we may terminatecommencement date) of Dr. Karlsson at any time with immediate effect for cause or by giving written notice to Dr. Karlsson that we shall pay, in lieu of notice, his basic salary during the 12 months following termination, a pro-ratedZaccardelli’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Karlsson is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares)unused paid time-off, and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. See "— Equity Compensation Arrangements" below. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Dr. Zaccardelli’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Dr. Zaccardelli’s employment commencement date.
If payments to Dr. KarlssonZaccardelli would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by

Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Karlsson'sZaccardelli’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Dr. Karlsson is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Dr. Karlsson's employment agreementZaccardelli has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Kenneth Newman,Jan-Anders Karlsson, Ph.D.
We and Dr. Karlsson entered into a separation agreement, or the Karlsson Separation Agreement, pursuant to which we and Dr. Karlsson agreed that he would no longer serve as chief executive officer, director or officer, effective as of February 2, 2020, and that his employment with us will terminate effective as of February 28, 2020, or the Separation Date. Dr. Karlsson agreed to help transition his duties to Dr. Zaccardelli. Pursuant to the Karlsson Separation Agreement, Dr. Karlsson agreed to execute a general release of claims, or the Karlsson Settlement Agreement, and he is entitled to receive cash severance payments in the aggregate amount of £982,160, payments for continued medical and life insurance benefits until the first anniversary of the Separation Date and continued pension contributions until the first anniversary of the Separation Date, subject to his compliance with the terms of the Karlsson Separation Agreement, the Karlsson Settlement Agreement and his employment agreement. Additionally, equity awards will either be vested as of the Separation Date, will be forfeited as of the Separation Date, or will be unvested as of the Separation Date and will either vest according to the applicable vesting schedule, or will be forfeited as of February 28, 2021, unless an earlier change in control event occurs, Dr. Karlsson dies or we breach the terms of the Karlsson Separation Agreement or the Karlsson Settlement Agreement.
Kathleen Rickard, M.D.
We entered into an offer letter with Dr. NewmanRickard on December 15, 2014, which was subsequently amended,13, 2018, pursuant to which heshe agreed to serve as our Chief Medical Officer, effective JanuaryFebruary 1, 2015.2019. This agreement entitles Dr. NewmanRickard to receive an annual base salary of $340,000$390,000 and a target annual bonus opportunity of 40% of hisher annual base salary, with the amount of any such bonus based on performance criteria for our company and hisher individual performance, as determined by the board of directors in its sole discretion. Dr. Newman'sRickard was also entitled to receive a sign-on bonus of $50,000, payable on the date of the offer letter, and is entitled to receive a retention bonus of $250,000, with $125,000 payable on April 1, 2019 and $125,000 payable on April 1, 2020, subject to Dr. Rickard being employed at the applicable date of payment and with the condition that each retention bonus payment is repayable if she resigns or is terminated for "Cause" within 12 months of payment. Subject to the approval of our board of directors and our share dealing policy, Dr. Rickard's offer letter also entitled himher to receive a stock option to purchase 250,00070,000 of our ordinary shares at an exercise priceADSs and to be issued 15,000 restricted stock units with respect to ADSs under the terms of £1.25 per ordinary share,the Company's equity incentive plan, half of which vests in full uponequal proportions on the earlier of (a) thefirst, second and third anniversary of the grant date or (b)and half in equal proportions on the first, second, third and fourth anniversary of the grant date, subject to accelerated vesting upon a change in control. The exercise price of control.the stock option to purchase ADSs will be determined according to the terms of the Company's equity incentive plan at the date of grant. The offer letter with Dr. NewmanRickard also provides that for so long as Dr. Newmanshe is eligible for medical continuation coverage under the Consolidated Omnibus Budget Reconciliation Act, or COBRA, from his previous employer or until we establish a health insurance plan in which he is eligibleentitled to participate Dr. Newman will receive reimbursement for monthly premiums paid for such medical continuation coveragein the Company's 401(k) plan and reimbursement for any premiums he pays for private long-term disability insurance (uphealthcare plans generally available from time to $800 per month).time to employees of the Company based in the U.S.
If Dr. Newman'sRickard's employment is terminated by us without "Cause" or by Dr. NewmanRickard for "Good Reason" (as each such term is defined in hisher offer agreement), then, subject to hisher signing and not revoking a general release of claims, heshe is entitled to receive (i) six monthsfour weeks of base salary continuation, (ii) six monthsfour weeks of continued payment of premiums for continued medical coverage under COBRA, (iii) a pro-rated portion of the annual bonus that heshe otherwise would have earned in the year of termination based on actual performance in such year and (iv) if the date of termination occurs within the six-month period immediately preceding the third anniversary of the date of grant of the stock option to purchase 250,000 of our ordinary shares, such stock option will vest in full. The offer agreement also provides that, if Dr. Newman's employment is terminated by us without Cause or by Dr. Newman for Good Reason, in either case within 12 months following a change of control, then, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) nine months of base salary continuation, (ii) nine months of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that he would otherwise have earned in the year of termination based on actual performance in such year. If payments to Dr. Newman would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Newman's receipt, on an after-tax basis, of the greater amount of the payment.
Piers Morgan
We entered into an employment agreement with Mr. Morgan on September 24, 2016, which was subsequently amended, pursuant to which he agreed to serve as our Chief Financial Officer, effective September 26, 2016. This agreement entitles Mr. Morgan to receive an annual base salary of £210,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% (potentially extending to up to 50%) of his salary, with the

amount of any such bonus based on performance criteria for our company and his individual performance, as determined by our board of directors in its sole discretion. Within 12 months after receiving any such bonus payment, Mr. Morgan is expected to invest an amount equal to 25% of the bonus (net of income tax paid by Mr. Morgan) in our company through the purchase of our ordinary shares.shares until he has invested an amount equal to £200,000. Pursuant to this agreement, on September 16, 2016, Mr. Morgan received an option to purchase 300,000 of our ordinary shares with an exercise price of £2.04 per ordinary share, which vests in equal proportions on the first, second and third anniversary of the grant date of September 26, 2016. Mr. Morgan is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.

Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Mr. Morgan at any time with immediate effect for cause or by giving written notice to Mr. Morgan that we shall pay, in lieu of notice, his basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Mr. Morgan is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares) and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Mr. Morgan would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Morgan's receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Mr. Morgan is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Mr. Morgan's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Peter Spargo, Ph.D.
We and Mr. Morgan entered into an employmenta separation agreement, with Dr. Spargo on April 1, 2014, which was subsequently amended. Pursuant to this agreement, Dr. Spargo agreed to serve as our Senior Vice President, Chemistry Manufacturing and Controls, effective April 1, 2014. This agreement, as amended, entitles Dr. Spargo to receive an annual base salary of £190,000 and a target annual bonus opportunity of up to 35% of his annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed between us and Dr. Spargo. Dr. Spargo is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Dr. Spargo at any time with immediate effect for cause or by giving written notice to Dr. Spargo that we shall pay, in lieu of notice, his basic salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Spargo is entitled to receive his full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Dr. Spargo would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Spargo's receipt, on an after-tax basis, of the greater amount of the payment. Dr. Spargo's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Claire Poll
We entered into an agreement for consulting services with Ms. Poll on March 28, 2007, or the Poll ConsultingMorgan Settlement Agreement, pursuant to which Ms. Poll provided corporate managerial services to us. We also entered into an agreement for director serviceswe and Mr. Morgan agreed that his employment with Ms. Poll on Marchus will terminate effective as of February 28, 2007 pursuant to which Ms. Poll served on our board of directors2020, or the Poll Director Services Agreement.Separation Date. The Morgan Settlement Agreement contains a general release of claims in our favour. Pursuant to a letter agreement that we entered intothe Morgan Settlement Agreement, Mr. Morgan is entitled to cash severance payments in the aggregate amount of £276,550, payments for continued life insurance benefits for six months following the Separation Date and continued pension contributions for six months following the Separation Date, subject to his compliance with Ms. Poll on September 21, 2015, Ms. Poll retired from our boardthe terms of directors and the Poll Director Services Agreement was terminated, effective September 10, 2015. The letter agreement further provided that an annual aggregate

remuneration of £70,000 payable under both the Poll ConsultingMorgan Settlement Agreement and Poll Director Services Agreement wouldhis employment agreement. Additionally, equity awards will either be paid undervested as of the Separation Date, or will be forfeited as of the Separation Date.
Claire Poll Consulting Agreement.
We entered into an employment agreement with Ms. Poll on October 1, 2016 pursuant to which Ms. Poll agreed to serve as our LegalGeneral Counsel, effective September 1, 2016. This agreement, as amended, entitles Ms. Poll to receive an annual base salary of £170,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% of her annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed to between us and Ms. Poll. Pursuant to this agreement, on September 13, 2016, Ms. Poll received an option to purchase a total of 200,000 of our ordinary shares with an exercise price of £1.89 per ordinary share, which vests in equal proportions on the first three anniversaries of the date of grant. Ms. Poll is also entitled to participate in a workplace pension scheme that we contribute to on her behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Ms. Poll at any time with immediate effect for cause or by giving written notice to Ms. Poll that we shall pay, in lieu of notice, her basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Ms. Poll is entitled to receive her full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Ms. Poll would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Ms. Poll's receipt, on an after-tax basis, of the greater amount of the payment. Ms. Poll's employment agreement also contains restrictive covenants pursuant to which she has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following her termination of employment.
Richard HenningsMark W. Hahn
We entered into an employment agreement with Mr. HenningsMark Hahn on March 27, 2017,February 1, 2020 pursuant to which he agreed to commence employment with us on February 1, 2020 and serve as our Commercial Director,Chief Financial Officer, effective March 27, 2017.1, 2020. This agreement entitles Mr. HenningsHahn to receive an annual base salary of £155,000,$500,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Hahn Annual RSUs, and a target annual bonus opportunity of up to 35%50% of his annual base salary, withsalary. The Hahn Annual RSUs vest in equal quarterly installments during the amount of any such bonus based on annual performance criteriacalendar year in which the grant occurs, subject to be agreed between us and Mr. Hennings.continued employment. Pursuant to his employment agreement, and subject to approval at our annual general meeting of shareholders in 2020, Mr. HenningsHahn is also entitled to receive (a)(i) an optionaward of restricted stock units equal to purchase a total of 160,0003% of our outstanding ordinary shares, withor the First RSU Award, and (ii) an exercise priceadditional award of restricted stock units during or prior to our first open trading window following the date

that is six months after his employment commencement date, or the Reference Date, equal to 1% of our Nasdaq listing priceoutstanding ordinary shares, or the Second RSU Award. The First RSU Award and the Second RSU Award will vest as to 25% on the first anniversary of Mr. Hahn’s employment commencement date or the Reference Date, respectively, and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment. In the event that the Company raises additional equity capital during fiscal year 2020, which is intended to result in Mr. Hahn’s equity awards (other than the portion of his base salary payable in restricted stock units) being equal to 4% of our outstanding ordinary shares on the applicable date of grant (£1.32)issuance. These awards of restricted stock units will vest as to 75% of the award, on the same vesting schedule as the First RSU Award, and (b) restricted share units withas to 25% of the award, on the same vesting schedule as the Second RSU Award, subject to continued employment.
If Mr. Hahn’s employment is terminated by us without "Cause" or by Mr. Hahn for "Good Reason" (as each such term is defined in his offer agreement), then, subject to his signing and not revoking a grant date fair valuegeneral release of approximately £40,000. Mr. Hennings is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice. The employment agreement provides that, upon a change of control, Mr. Henningsclaims, he is entitled to receive his(i) 18 months (or 12 months if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of base salary continuation and continued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to 150% (or 100% if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of Mr. Hahn’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and unused paid time-off and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Mr. Hahn’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Mr. Hahn’s employment commencement date.
If payments to Mr. HenningsHahn would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Hennings'Hahn’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of US and UK income tax rates, Mr. Hennings is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to UK taxes during the period of his employment with us. Mr. Hennings' employment agreementHahn has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Desiree Luthman, DDS.
We entered into an employment agreement with Ms Luthman on May 1, 2017, pursuant to which she agreed to serve as our Vice-President Regulatory Affairs, effective June 15, 2017. This agreement entitles Ms Luthman to receive an annual base salary of $265,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of up to 25% of her annual base salary, with the amount of any such bonus based on annual performance criteria to be agreed between us and Ms Luthman. Pursuant to her employment agreement, Ms Luthman is also entitled to receive an option to purchase a total of 20,000 of our ADSs under the terms of the

Company's equity incentive plan. The ADSs relate to 160,000 ordinary shares and the exercise price is £1.32 per ordinary share.
If Ms Luthman's employment is terminated by us without "Cause" or by Ms Luthman for "Good Reason" (as each such term is defined in her offer agreement), then, subject to her signing and not revoking a general release of claims, she is entitled to receive (i) eight weeks of base salary continuation, (ii) eight weeks of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that she otherwise would have earned in the year of termination based on actual performance in such year.
Equity Compensation Arrangements
In May 2017, we closed the initial public offering of our American Depositary Shares in the United States and a private placement of our ordinary shares in Europe, together the global offering. Prior to the global offering, we issued option grants under two option schemes, the Unapproved Share Option Scheme, or the Unapproved Scheme, adopted by our board of directors on September 18, 2006, and the EMI Option Scheme, or the EMI Scheme, adopted by our board of directors on July 24, 2012. Discussions in this section regarding the Unapproved Scheme or the EMI Scheme that refer to our board of directors include any designated committee of our board of directors. Since the adoption of the 2017 Incentive Award Plan, (as defined below),or the 2017 Incentive Plan, no further awards are being made under either the Unapproved Scheme or the EMI Scheme.
EMI Option Scheme
Under the EMI Scheme, eligible employees were granted tax‑efficient options to purchase our ordinary shares. Options were granted to eligible employees who were contracted to work for us or a qualifying subsidiary for at least 25 hours a week, or, if less than 25 hours a week, for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price and in accordance with a vesting schedule determined by our board of directors at the time of grant and expire 10 years from the date of grant.
Unapproved Share Option Scheme
Under the Unapproved Scheme, we granted non‑tax‑qualifying options to purchase our ordinary shares. Options were granted to employees, directors or consultants to acquire our ordinary shares at a price determined by our board of directors. In general, the options granted under the Unapproved Scheme are exercisable at a price and in accordance with the vesting period determined by our board of directors at the date of grant and expire 10 years from the date of grant.

Certain Transactions
Under the EMI Scheme and the Unapproved Scheme, if certain changes are made in, or events occur with respect to, our ordinary shares (including any capitalization, sub-division, reduction or other variation of our ordinary shares), any outstanding awards may be adjusted in terms of the number of ordinary shares subject to an option and the exercise price as our board of directors may determine appropriate on a fair and reasonable basis. In the event of certain corporate transactions, including a change of control, scheme of arrangement, merger, demerger or liquidation, the vesting and exercisability of all options will accelerate and, to the extent not exercised, will lapse within certain time periods defined in the applicable plan rules.
Amendment and Termination
Our board of directors may at any time amend the rules of the EMI Scheme or the Unapproved Scheme in any manner, except that no amendment may be made if, in the reasonable opinion of our board of directors, it would materially abrogate or adversely affect the subsisting rights of an option holder regarding existing options, unless the amendment is made either (i) with the written consent of the number of option holders that hold options to acquire 50% of the ordinary shares that would be delivered if all options granted and subsisting under the scheme, as applicable, were exercised; or (ii) by a resolution at a meeting of option holders passed by not less than 50% of the option holders holding options under the scheme, as applicable, who attend and vote either in person or by proxy. The EMI Scheme and the Unapproved Scheme are discretionary and may be suspended or terminated by us at any time. Suspension or termination will not affect any options granted under the schemes to the extent that they are subsisting at the date of the suspension or termination.


The following table summarizes the options that we granted to our directors and executive officers under the EMI Scheme and Unapproved Scheme in 2016:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 100,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 3.30
 February 9, 2016
 February 9, 2026
 500,000
 1.80
 August 3, 2016
 August 3, 2026
Piers Morgan300,000
 2.04
 September 26, 2016
 September 26, 2026
Kenneth Newman, M.D. 60,000
 2.00
 February 9, 2016
 February 9, 2026
 200,000
 1.80
 August 3, 2016
 August 3, 2026
Peter Spargo, Ph.D. 20,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 1.80
 August 3, 2016
 August 3, 2026
Claire Poll200,000
 1.89
 September 13, 2016
 September 13, 2026
Richard Hennings
 
 
 
Patrick Humphrey
 
 
 
David Ebsworth
 
 
 
Anders Ullman
 
 
 
Ken Cunningham
 
 
 
Rishi Gupta
 
 
 
Mahendra Shah
 
 
 
Vikas Sinha
 
 
 
Andrew Sinclair
 
 
 
2017 Incentive Plan
We have adoptedUnder the 2017 Incentive Plan, under which we may grant cash and equity‑based incentive awards to eligible service providers in order to attract, retain and motivate the persons who make important contributions to us. The material terms of the 2017 Incentive Plan are summarized below. Except where the context indicates otherwise, references hereunder to our ordinary shares shall be deemed to include a number of ADSs equal to an ordinary share.
Eligibility and Administration
Our employees, consultants and directors, and employees and consultants of our subsidiaries, are eligible to receive awards under the 2017 Incentive Plan. The 2017 Incentive Plan is administered by our board of directors, which may delegate its duties and responsibilities to one or more committees of our board of directors and/or officers (referred to collectively as the plan administrator below), subject to the limitations imposed under the 2017 Incentive Plan, stock exchange rules and other applicable laws. The plan administrator has the authority to take all actions and make all determinations under the 2017 Incentive Plan, to interpret the 2017 Incentive Plan and award agreements and to adopt, amend and repeal rules for the administration of the 2017 Incentive Plan as it deems advisable. The plan administrator also has the authority to determine which eligible service providers receive awards, grant awards, set the terms and conditions of all awards under the 2017 Incentive Plan, including any vesting and vesting acceleration provisions, and designate whether such awards will cover our ordinary shares or ADSs, subject to the conditions and limitations in the 2017 Incentive Plan.
Sub-Plan
The 2017 Incentive Plan authorizedauthorizes the administrator to establish one or more sub-plans. Immediately after the 2017 Incentive Plan had beenwas established, the administrator established a sub-plan. The sub-plan incorporated all of the terms of the 2017 Incentive Plan, except that only employees of ours (or our subsidiaries) were eligible to receive awards under the sub-plan. Awards under the sub-plan counted towards the total number of shares available for issuance under the 2017 Incentive Plan. The sub-plan is an "employees' share scheme" for the purposes of the UK Companies Act 2006.

Shares Available for Awards
An aggregate of 6,333,000 of our ordinary shares were initially made available for issuance under the 2017 Incentive Plan. The number of shares initially available for issuance will be increased by an annual increase on January 1 of each calendar year beginning in 2018 and ending in and including 2027 equal to the least of (A) 4% of our ordinary shares outstanding on the final day of the immediately preceding calendar year and (B) a smaller number of shares determined by our board of directors. As of January 1, 2020, the number of shares available for issuance was 5,499,058. Pursuant to the terms of the 2017 Incentive Plan, awards may be issued under the 2017 Incentive Plan covering ADSs in lieu of the number of our ordinary shares that such ADSs represent. No more than 5,000,000 shares may be issued under the 2017 Incentive Plan upon the exercise of incentive options. Shares issued under the 2017 Incentive Plan may be authorized but unissued shares, shares purchased on the open market, treasury shares or ADSs.

If an award under the 2017 Incentive Plan, the EMI Option Scheme, the Unapproved Share Option Scheme or any prior equity incentive plan, expires, lapses or is terminated, exchanged for cash, surrendered, repurchased, canceled without having been fully exercised or forfeited, any unused shares subject to the award will, as applicable, become or again be available for new grants under the 2017 Incentive Plan. Awards granted under the 2017 Incentive Plan in substitution for any options or other equity or equity-based awards granted by an entity before the entity's merger or consolidation with us or our acquisition of the entity's property or stock will not reduce the shares available for grant under the 2017 Incentive Plan, but will count against the maximum number of shares that may be issued upon the exercise of incentive options.
Awards
The 2017 Incentive Plan provides for the grant of options, share appreciation rights, or SARs, restricted shares, dividend equivalents, restricted share units, or RSUs, and other share or cash based awards. All awards under the 2017 Incentive Plan will be set forth in award agreements, which will detail the terms and conditions of awards, including any applicable vesting and payment terms and post-termination exercise limitations. A brief description of each award type follows.
Options and SARs.    Options provide for the purchase of our ordinary shares in the future at an exercise price set on the grant date. SARs entitle their holder, upon exercise, to receive from us an amount equal to the appreciation of the shares subject to the award between the grant date and the exercise date. The plan administrator will determine the number of shares covered by each option and SAR, the exercise price of each option and SAR and the conditions and limitations applicable to the exercise of each option and SAR.
Restricted Shares and Restricted Share Units.    Restricted shares are an award of nontransferable ordinary shares that remain forfeitable unless and until specified conditions are met and which may be subject to a purchase price. RSUs are contractual promises to deliver our ordinary shares in the future, which may also remain forfeitable unless and until specified conditions are met and may be accompanied by the right to receive the equivalent value of dividends paid on our ordinary shares prior to the delivery of the underlying shares. The plan administrator may provide that the delivery of the shares underlying RSUs will be deferred on a mandatory basis or at the election of the participant. The terms and conditions applicable to restricted shares and RSUs will be determined by the plan administrator, subject to the conditions and limitations contained in the 2017 Incentive Plan.
Other Share or Cash Based Awards.    Other share or cash based awards are awards of cash, fully-vested our ordinary shares and other awards valued wholly or partially by referring to, or otherwise based on, our ordinary shares or other property. Other share or cash based awards may be granted to participants and may also be available as a payment form in the settlement of other awards, as standalone payments and as payment in lieu of compensation to which a participant is otherwise entitled. The plan administrator will determine the terms and conditions of other share or cash based awards, which may include any purchase price, performance goal, transfer restrictions and vesting conditions.
Performance Criteria
The plan administrator may select performance criteria for an award to establish performance goals for a performance period. Performance criteria under the 2017 Incentive Plan may include, but are not limited to, the following: net earnings or losses (either before or after one or more of interest, taxes, depreciation, amortization, and non-cash equity-based compensation expense); gross or net sales or revenue or sales or revenue growth; net income (either before or after taxes) or adjusted net income; profits (including but not limited to gross profits, net profits, profit growth, net operation profit or economic profit), profit return ratios or operating margin; budget or operating earnings (either before or after taxes or before or after allocation of corporate overhead and bonus); cash flow (including operating cash flow and free cash flow or cash flow return on capital); return on assets; return on

capital or invested capital; cost of capital; return on shareholders' equity; total shareholder return; return on sales; costs, reductions in costs and cost control measures; expenses; working capital; earnings or loss per share; adjusted earnings or loss per share; price per share or dividends per share (or appreciation in or maintenance of such price or dividends); regulatory achievements or compliance; implementation, completion or attainment of objectives relating to research, development, regulatory, commercial, or strategic milestones or developments; market share; economic value or economic value added models; division, group or corporate financial goals; customer satisfaction/growth; customer service; employee satisfaction; recruitment and maintenance of personnel; human resources management; supervision of litigation and other legal matters; strategic partnerships and transactions; financial ratios (including those measuring liquidity, activity, profitability or leverage); debt levels or reductions; sales-related goals; financing and other capital raising transactions; cash on hand; acquisition activity; investment sourcing activity; and marketing initiatives, any of which may be measured in absolute terms or as compared to any incremental increase or decrease. Such performance goals also may be based solely by reference to the company's performance or the performance of a subsidiary, division, business segment or business unit of the company or a subsidiary, or based upon performance relative

to performance of other companies or upon comparisons of any of the indicators of performance relative to performance of other companies. When determining performance goals, the plan administrator may provide for exclusion of the impact of an event or occurrence which the plan administrator determines should appropriately be excluded, including, without limitation, non-recurring charges or events, acquisitions or divestitures, changes in the corporate or capital structure, events unrelated to the business or outside of the control of management, foreign exchange considerations, and legal, regulatory, tax or accounting changes.
Certain Transactions
In connection with certain corporate transactions and events affecting our ordinary shares, including a change in control, another similar corporate transaction or event, another unusual or nonrecurring transaction or event affecting us or its financial statements or change in any applicable laws or accounting principles, the plan administrator has broad discretion to take action under the 2017 Incentive Plan to prevent the dilution or enlargement of intended benefits, facilitate the transaction or event or give effect to the change in applicable laws or accounting principles. This includes canceling awards for cash or property, accelerating the vesting of awards, providing for the assumption or substitution of awards by a successor entity, adjusting the number and type of shares subject to outstanding awards and/or with respect to which awards may be granted under the 2017 Incentive Plan and replacing or terminating awards under the 2017 Incentive Plan. In addition, in the event of certain non-reciprocal transactions with our shareholders, the plan administrator will make equitable adjustments to the 2017 Incentive Plan and outstanding awards as it deems appropriate to reflect the transaction. Pursuant to the terms of their individual employment agreements, awards granted under the 2017 Incentive Plan to certain of our executives may become fully vested and exercisable upon a change in control.
Plan Amendment and Termination
Our board of directors may amend or terminate the 2017 Incentive Plan at any time; however, no amendment, other than an amendment that increases the number of shares available under the 2017 Incentive Plan, may materially and adversely affect an award outstanding under the 2017 Incentive Plan without the consent of the affected participant and shareholder approval will be obtained for any amendment to the extent necessary to comply with applicable laws. Further, the plan administrator cannot, without the approval of our shareholders, amend any outstanding option or SAR to reduce its price per share or cancel any outstanding option or SAR in exchange for cash or another award under the 2017 Incentive Plan with an exercise price per share that is less than the exercise price per share of the original option or SAR. The 2017 Incentive Plan will remain in effect until the tenth anniversary of its effective date unless earlier terminated by our board of directors. No awards may be granted under the 2017 Incentive Plan after its termination.
Non-U.S. Participants, Claw-Back Provisions, Transferability and Participant Payments
The plan administrator may modify awards granted to participants who are non-U.S. nationals or employed outside the United States or establish sub-plans or procedures to address differences in laws, rules, regulations or customs of such foreign jurisdictions. All awards will be subject to any company claw-back policy as set forth in such claw-back policy or the applicable award agreement. Except as the plan administrator may determine or provide in an award agreement, awards under the 2017 Incentive Plan are generally non-transferrable, except by will or the laws of descent and distribution, or, subject to the plan administrator's consent, pursuant to a domestic relations order, and are generally exercisable only by the participant. With regard to tax withholding obligations arising in connection with awards under the 2017 Incentive Plan, and exercise price obligations arising in connection with the exercise of options under the 2017 Incentive Plan, the plan administrator may, in its discretion, accept cash, wire

transfer or cheque,check, our ordinary shares that meet specified conditions, a promissory note, a "market sell order," such other consideration as the plan administrator deems suitable or any combination of the foregoing.
2017
2019 Grants
The following table summarizes the options that we granted to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 1,385,598
 1.32
 April 26, 2017 April 26, 2027
Piers Morgan802,690
 1.32
 April 26, 2017 April 26, 2027
Kenneth Newman, M.D. 796,128
 1.32
 April 26, 2017 April 26, 2027
Peter Spargo, Ph.D. 544,681
 1.32
 April 26, 2017 April 26, 2027
Claire Poll487,347
 1.32
 April 26, 2017 April 26, 2027
Richard Hennings160,000
 1.32
 April 26, 2017 April 26, 2027
Desiree Luthman160,000
 1.32
 April 26, 2017 April 26, 2027
Vikas Sinha120,384
 1.32
 April 26, 2017 April 26, 2027
David Ebsworth
 
  
Anders Ullman
 
  
Ken Cunningham
 
  
Rishi Gupta
 
  
Mahendra Shah
 
  
Andrew Sinclair
 
  
NameOrdinary Shares Underlying Options
 
Exercise
Price
Per Share (£)

 
Grant
Date
 
Expiration
Date
        
Kathleen Rickard560,000
 0.57
 April 01, 2019 March 29, 2029
Piers Morgan359,430
 0.57
 April 01, 2019 March 29, 2029
Claire Poll256,735
 0.57
 April 01, 2019 March 29, 2029

The following table summarizes the RSUs that we granted on April 1, 2019, to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Restricted
Share Units Granted

Jan-Anders Karlsson, Ph.D., M.D. Kathleen Rickard346,395120,000
Piers Morgan200,669
Kenneth Newman, M.D. 199,016
Peter Spargo, Ph.D. 136,16893,247
Claire Poll121,835
Richard Hennings48,153
David Ebsworth
Anders Ullman
Ken Cunningham
Rishi Gupta
Mahendra Shah
Vikas Sinha
Andrew Sinclair66,603

The options and RSUs (other than those granted to Messrs. Hennings and Sinha) vest as to 50% of the ordinary shares in three substantially equal annual installments following the grant date and as to 50% of the ordinary shares in four substantially equal annual installments following the grant date. The options and RSUs granted to

Messrs. Hennings and Sinha vest in three substantially equal annual installments following the grant date. This description relates to the options and RSUs granted in connection with the global offering.
Non-Employee Directors Remuneration
The following table sets forth the remuneration paid during 20172019 to our current non-employee directors:
Name
Annual
Fees
(£)
 
Total
(£)
Fees (£)
 Total (£)
David Ebsworth108,000
 108,000
108,000
 108,000
Anders Ullman30,000
 30,000
30,000
 30,000
Ken Cunningham40,000
 40,000
40,000
 40,000
Rishi Gupta30,000
 30,000
30,000
 30,000
Mahendra Shah30,000
 30,000
30,000
 30,000
Vikas Sinha42,000
 42,000
42,000
 42,000
Andrew Sinclair30,000
 30,000
30,000
 30,000
Patrick Humphrey8,750
 8,750
Martin Edwards22,500
 22,500
Non-Employee Director Service Contracts
The remuneration of the non-executive directors is determined by our board as a whole, based on a review of current practices in other companies. We have entered into service contracts with our directors for their services, which are subject to a three-month termination period.
Pension, Retirement or Similar Benefits
We operate a defined contribution pension scheme which is available to all UK employees. The total amount set aside or accrued by us to provide pension, retirement or similar benefits to our current directors and our executive officers with respect to 20172019 was £41,671,£30,000, which represents contributions made by us in 20172019 in respect of a defined contribution scheme in which Dr. Karlsson, Ms. Poll, Mr. HenningsMs. Rickard, and Mr. Morgan participated.

C. Board Practices
Composition of our Board of Directors
Our Board is comprised of eightnine members. In accordance with our Articles of Association, one third of our directors retire from office at every annual general meeting of shareholders. However, if the number of directors serving on our Board is not divisible by three, then the number nearest but not exceeding 33.3% shall retire from office at each annual general meeting of shareholders. Retiring directors are eligible for re-election and, if no other director is elected to fill his or her position and the director is willing, shall be re-elected by default.

The expiration of the current terms of the members of our board of directors and the period each member has served in that term are as follows:

NameYear Current Term BeganNext year of re-electionYear Current Term BeganNext year of re-election
Jan-Anders Karlsson, Ph.D.20122020
David Zaccardelli, Pharma.D.2020
David Ebsworth, Ph.D.2014201820182021
Ken Cunningham, M.D.2015201920152022
Rishi Gupta2016202120162020
Mahendra Shah, Ph.D.2016202020162020
Andrew Sinclair, Ph.D.2016201920162022
Vikas Sinha2016202120162020
Anders Ullman, M.D., Ph.D.2015201820182021
Martin Edwards, M.D.20192021
There are no arrangements or understanding between us and any of the members of our board of directors providing for benefits upon termination of their service.

Committees of our Board of Directors
Our Board has three standing committees: an Audit and Risk Committee, a Remuneration Committee and a Nomination and Governance Committee.
Audit and Risk Committee of the Board
The Audit and Risk Committee, which consists of Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair, , assists the Board in overseeing our accounting and financial reporting processes and the audits of our financial statements. Mrstatements and monitoring UK Governance Code compliance and business risk. Mr. Sinha serves as Chairman of the Audit and Risk Committee. The Audit and Risk Committee consists of members of our Board who are financially literate and are also considered to be "audit committee financial experts" as defined by applicable SEC rules and have the requisite financial sophistication as defined under the applicable Nasdaq rules and regulations. Our Board has determined that all of the members of the Audit and Risk Committee satisfy the "independence" requirements set forth in Rule 10A-3 under the Exchange Act. The Audit and Risk Committee will beis governed by a charter that complies with Nasdaq rules.
The Audit and Risk Committee's responsibilities include:include, among other things:
recommending the appointment of the independent auditor to the general meeting of shareholders; 
the appointment, compensation, retention and oversight of the independent auditor; 
pre-approving the audit services and non-audit services to be provided by ourthe independent auditor before the auditor is engaged to render such services;
evaluating the independent auditor's qualifications, performance and independence, and presenting its conclusions to our Board on at least an annual basis; 
reviewing and discussing with the executive officers, our Board and the independent auditor our financial statements and our financial reporting process; and 
considering and recommending to our Board whether the audited financial statements be approved.approved; and
monitoring our review and mitigation of corporate and operational risk.
The Audit and Risk Committee will meetmeets as often as one or more members of the Committee deem necessary, but in any event willmust meet at least four times per year. The Audit and Risk Committee willmust meet at least once per year with our independent auditor, without our executive officers being present.

Remuneration Committee of the Board
The Remuneration Committee, which consists of Dr. Ken Cunningham, Dr. David Ebsworth and Rishi Gupta, assists the Board in determining directors’ and senior executives’executive officers’ compensation. Dr Cunningham serves as Chairman of the Committee.
The Remuneration Committee's responsibilities include:include, among other things:
identifying, reviewing and proposing policies relevant to the compensation of the Company’s directors and executive officers; 
evaluating each executive officer's performance in light of such policies and reporting to the Board; 
analyzing the possible outcomes of the variable remuneration components and how they may affect the remuneration of the executive officers; 
recommending any equity long-term incentive component of each executive officer's compensation in line with the remuneration policy and reviewing our executive officer compensation and benefits policies generally;
appointing and setting the terms of referenceengagement for any remuneration consultants who advise the Committee and obtain benchmarking data with respect to the directors' and executive officers’ compensation; and 
reviewing and assessing risks arising from our compensation policies and practices.
Nomination and Governance Committee of the Board
The Nomination and Governance Committee, which consists of Dr. David Ebsworth, Dr. Mahendra Shah and Dr. Anders Ullman, assists our Board in identifying individuals qualified to become executive and non-executive directors of our Company consistent with criteria established by our Board and in developing our corporate governance principles. Dr Ebsworth serves as Chairman of the Committee.
The Nomination and Governance Committee's responsibilities include:include, among other things:

reviewing and evaluating the structure, size and composition of our Board and making recommendations with regard to any adjustments considered necessary; 
drawing up selection criteria and appointment procedures for Board members; 
identifying and nominating, for the approval of our Board, candidates to fill vacancies on theBoardthe Board and its corresponding committees; 
keeping under review the leadership needs of the Company, both executive and non-executive, and planning the orderly succession of such appointments; and
assessing the functioning of our Board and individual members and reporting the results of such assessment to the Board.

D. Employees
As of December 31, 2017, 20162019, 2018 and 2015,2017, we had 24, 15, and 15 employees, respectively, of which 13, 11, and 9 employees, respectively. All of our employees10 were based in the United Kingdom, except that, asrespectively, and the remainder of December 31, 2017, 2016 and 2015, we had one to four employeeswhich were based outside of the United Kingdom. All of our employees were engaged in either administrative or research and development functions. None of our employees are covered by a collective bargaining agreement.
E. Share Ownership
For information regarding the share ownership of members of our board and executive officers and arrangements involving our employees in our share capital, see “ItemItem 6.B. Compensation, Item 7.A. Major Shareholders”Shareholders and “ItemItem 7.B. Related Party Transactions.


ITEM 7: MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
A. MAJOR SHAREHOLDERS
The following table sets forth information relating to the beneficial ownership of our ordinary shares as of December 31, 20172019, by:
each person, or group of affiliated persons, that beneficially owns 3% or more of our outstanding ordinary shares;shares (including ordinary shares in the form of our ADSs);
each member of our board of directors and each of our other executive officers; and
all board members and executive officers as a group.
The number of ordinary shares beneficially owned by each entity, person, board member or executive officer is determined in accordance with the rules of the SEC, and the information is not necessarily indicative of beneficial ownership for any other purpose. Under such rules, beneficial ownership includes any shares over which the individual has sole or shared voting power or investment power as well as any shares that the individual has the right to acquire within 60 days of February 27, 2018December 31, 2019, through the exercise of any option, warrant or other right. Except as otherwise indicated, and subject to applicable community property laws, the persons named in the table have sole voting and investment power with respect to all ordinary shares held by that person.
The percentage of ordinary shares beneficially owned is computed on the basis of 105,017,400105,326,638 of our ordinary shares outstanding as of February 1, 2018.December 31, 2019. Ordinary shares that a person has the right to acquire within 60 days of December 31, 20172019 are deemed outstanding for purposes of computing the percentage ownership of the person holding such rights, but are not deemed outstanding for purposes of computing the percentage ownership of any other person, except with respect to the percentage ownership of all board members and executive officers as a group. As of February 1, 2018, 55,931,336December 31, 2019, 56,045,857 ordinary shares, representing 53% of our issued and outstanding ordinary shares (including ordinary shares in the form of our ADSs), were held by 1415 U.S. record holders. Unless otherwise indicated below, the address for each beneficial owner listed is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE UK.



   
 
Number of
Shares Beneficially Owned

Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113%
Vivo Capital affiliates (2)
13,811,58413%
OrbiMed Private Investments VI, LP (3)
11,871,11411%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01911%
Abingworth Bioventures VI, LP (5)
8,619,7748%
venBio Select Advisor (6)
7,000,0007%
Biodiscovery 4 FCPI (7)
6,652,3986%
Foresite (8)
5,000,0005%
Tekla Capital affiliates (9)
5,296,8455%
Aisling Capital IV, LP (10)
4,138,6434%
Arix Bioscience Holdings Ltd affiliates (11)
3,916,4934%
Canaccord Genuity Group, Inc.(12)

3,255,7923%
Executive Officers and Directors:  
Jan-Anders Karlsson, Ph.D.(13)
749,1421%
Piers Morgan (14)
100,000—%
Kenneth Newman, M.D.(15)
356,6651%
Claire Poll (16)
236,663—%
Richard Hennings—%
Peter Spargo, Ph. D.(17)
139,663—%
Ken Cunningham, M.D. —%
David Ebsworth, Ph.D.(18)
140,703—%
Rishi Gupta—%
Mahendrah Shah, Ph.D.—%
Andrew Sinclair, Ph.D.(19)
—%
Vikas Sinha (20)
22,222—%
Anders Ullman, Ph.D. —%
All executive officers and directors as a group (13 persons)1,745,0582%

 Number of Shares Beneficially Owned
Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113.22%
Vivo Capital affiliates (2)
13,811,58412.88%
OrbiMed Private Investments VI, LP (3)
11,871,11211.07%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01910.76%
Abingworth Bioventures VI, LP (5)
8,619,7658.08%
venBio Select Advisor (6)
7,000,0006.65%
Polar Capital Holdings plc (7)
5,368,8195.09%
Tekla Capital affiliates (8)
5,296,8454.99%
Aisling Capital IV, LP (9)
4,138,6433.91%
Executive Officers and Directors:  
David Zaccardelli, Pharm.D
Piers Morgan (10)
1,712,3621.60%
Kathleen Rickard, M.D.
Claire Poll (11)
799,141*
Ken Cunningham, M.D. 
Martin Edwards
David Ebsworth, Ph.D.(12)
400,303*
Rishi Gupta
Mahendra Shah, Ph.D.
Andrew Sinclair, Ph.D.
Vikas Sinha (13)
102,478*
Anders Ullman, Ph.D. 
All executive officers and directors as a group (12 persons)3,014,2842.83%
* Less than 1%.  
(1) 
Consists of (a) 12,389,985 ordinary shares held directly by Novo A/S, or Novo, and (b) warrants to purchase 1,769,626 ordinary shares. The board of directors of Novo A/S, or the Novo Board, has shared investment and voting control over the securities held by Novo and may exercise such control only with the support of a majority of the Novo Board. As such, no individual member of the Novo Board is deemed to hold any beneficial ownership or reportable pecuniary interest in the securities held by Novo. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D filed with the SEC on June 6, 2017.April 2, 2019. Novo's mailing address is Tuborg Havnevej 19, Hellerup, G7 2900, Denmark.Denmark
(2) 
Consists of (a) 2,388,728 ordinary shares held directly by Vivo Ventures Fund VI, L.P., or Vivo VI, of which 1,126,760 are held in the form of ADSs, (b) warrants to purchase 370,871 ordinary shares held directly by Vivo VI, (c) warrants to purchase 2,717 ordinary shares held directly by Vivo Ventures VI Affiliates Fund, L.P., or Vivo Affiliates VI, (d) 9,554,917 ordinary shares held directly by Vivo Ventures Fund VII L.P., or Vivo VII, of which 4,507,040 are held in the form of ADSs, (e) warrants to purchase 1,462,477 ordinary shares held directly by Vivo VII, (f)  warrants to purchase 31,874 ordinary shares held directly by Vivo Ventures VII Affiliates Fund, L.P., or Vivo Affiliates VII. Vivo Ventures VI, LLC , or Vivo Ventures VI, is the sole general partner of Vivo VI and Vivo Affiliates VI. Vivo Ventures VII, LLC, or Vivo Ventures VII, is the sole general partner of Vivo VII and Vivo Affiliates VII. Vivo Ventures VI and Vivo Ventures VII disclaim beneficial ownership of all shares held by Vivo VI, Vivo Affiliates VI, Vivo VII and Vivo Affiliates VII except to the extent of any pecuniary interest therein. The managing members of Vivo Ventures VI are Drs. Albert Cha, Edgar Engleman and Frank Kung, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo VI and Vivo Affiliates VI. The managing members of Vivo Ventures Vll are Drs. Albert Cha, Edgar Engleman, Frank Kung, Chen Yu and Mr. Shan Fu, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo Vll and Vivo Affiliates Vll. Mahendra Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.

Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.
(3) 
Consists of (a) 10,003,17510,003,174 ordinary shares held directly by OrbiMed Private Investments VI, LP, or OrbiMedOPI VI, of which 5,333,32810,003,168 are held in the form of ADSs and (b) warrants to purchase 1,867,9391,867,938 ordinary shares are held directly by OrbiMedOPI VI. OrbiMed Capital GP VI LLC, or GP VI, is the general partner of OrbiMedOPI VI. OrbiMed Advisors LLC, or OrbiMed Advisors, ispursuant to its authority as the sole managing member of GP VI. Samuel D. Isaly isVI, the managing membersole general partner of and owner of a controlling interest in OrbiMed Advisors. By virtue of such relationships, GPOPI VI, OrbiMed Advisors and Mr. Isaly may be deemed to have voting and investment power with respect toindirectly beneficially own the ordinary shares held by OrbiMedOPI VI. GP VI, andpursuant to its authority as a resultgeneral partner or OPI VI, may be deemed to have beneficial ownership of such shares. Rishi Gupta, an employee of OrbiMedindirectly beneficially own the ordinary shares held by OPI VI. As a result, Advisors is a member of our Board of Directors. Each ofand GP VI OrbiMedshare the power to direct the vote and to direct the disposition of the ordinary shares held by OPI VI. Advisors Mr. Isalyexercises this investment and Mr. Guptavoting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the ordinary shares held by OrbiMed VI, except to the extent of its or his pecuniary interest therein, if any.OPI VI. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D/A filed with the SEC on May 25, 2017. OrbiMed Advisors'January 26, 2018. The mailing address of OPI VI, GP VI and Advisors is 601 Lexington Avenue, 54th Floor, New York, NY 10022.

(4) 
Consists of (a) 9,757,393 ordinary shares held directly by Growth Equity Opportunities Fund IV, LLC, or GEO, of which 5,333,328 are held in the form of ADSs, and (c) warrants to purchase 1,769,626 ordinary shares held directly by GEO. New Enterprise Associates 15, L.P., or NEA 15, is the sole member of GEO. NEA Partners 15, L.P., NEA Partners 15, is the sole general partner of NEA 15. NEA 15 GP, LLC, or NEA 15 LLC, is the sole general partner of NEA Partners 15. Peter J. Barris, Forest Baskett, Anthony Florence, Jr., Krishnu Kolluri, David M. Mott, Scott D. Sandell, Peter Sonsini, Jon Sakoda, Ravia Viswanthan and Henry Weller are the managers of NEA 15 LLC. NEA 15, NEA Partners 15, NEA 15 LLC and the managers of NEA 15 LLC share voting and dispositive power with regard to the securities held by GEO. Each of NEA 15, NEA Partners 15 and NEA 15 LLC as well as each of the managers of NEA 15 LLC disclaims beneficial ownership of all shares held by GEO except to the extent of their actual pecuniary interest therein. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 8, 2017. GEO's mailing address is 1954 Greenspring Drive, Suite 600, Timonium, MD 21093-4135.
(5) 
Consists of (a) 7,215,5537,215,544 ordinary shares held directly by Abingworth Bioventures VI, LP, or Abingworth VI, all of which 3,705,000 are held in the form of ADSs, and (b) warrants to purchase 1,404,221 ordinary shares held directly by Abingworth VI. Abingworth Bioventures VI GP LP, or Abingworth GP VI, serves as general partner of Abingworth VI. Abingworth General Partner VI LLP, or Abingworth General Partner VI, serves as general partner of Abingworth GP VI. Abingworth General Partner VI has delegated to Abingworth LLP, all investment and dispositive power over the securities held by Abingworth VI. An Abingworth LLP investment committee comprised of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris approves investment and voting decisions of Abingworth VI by a majority vote, and no individual member has the sole control or voting power over the securities held by Abingworth VI. Abingworth GP VI, Abingworth General Partner VI, Abingworth LLP and each of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris disclaim beneficial ownership of securities held by Abingworth VI, except to the extent, if any of their pecuniary interest therein. Andrew Sinclair is a Partner and Portfolio Manager at Abingworth LLP and a member of our board of directors. Dr. Sinclair does not have voting or dispositive power over any of the securities held by Abingworth Vl. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 9, 2017. Abingworth VI's mailing address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(6) 
Consists of 7,000,000 ordinary shares held in the form of ADSs by VenBio Select Advisor. This information is based on information known to us. The mailing address for VenBio Select Advisor is 120 W 45th St #2802, New York, NY 10036
(7) 
Consists of (a) 5,767,5855,300,000 ordinary shares of which (a) 4,500,000 ordinary shares are held directly by Polar Biotechnology Fund, or PBF, (b) 800,000 are held by PBF in the form of ADSs, by Biodiscovery 4 FCPI, or Biodiscovery, and (b)(c) warrants to purchase 884,81368,819 ordinary shares held directly by Biodiscovery.PBF. PBF and PCGH are managed by Polar Capital Holdings plc, or PCH. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 5, 2017. The mailing address for Biodiscovery is 47 rue du Faubourg Saint-Honoré75401 Cedex 08 Paris FranceSeptember 9, 2019 and information known to us.
(8)
Consists of 5,000,000 ordinary shares held in the form of ADSs by Foresight Capital Management. This information is based on information known to us. The mailing address for Foresight Capital Management is [600 Montgomery Street, Suite 4500, San Francisco, CA 94111
(9) 
Consists of (a) 4,412,031 ordinary shares held directly by Tekla World Healthcare Fund, or Tekla World, of which  2,200,000 are held in the form of ADSs, (b) warrants to purchase 513,192 purchase ordinary shares held directly by Tekla World, and (c) warrants to purchase 371,622 ordinary shares held directly by Tekla Life. Tekla Capital Management LLC, or Tekla Capital, is an investment adviser registered pursuant to Section 203 of the Investment Advisers Act of 1940 and is the investment adviser of Tekla World and Tekla Life, each of which is a registered investment company pursuant to Section 8 of the Investment Company Act of 1940. Each of Tekla Capital and Daniel R. Omstead, through his control of Tekla Capital, has sole power to dispose of the shares beneficially owned by Tekla World and Tekla Life. Neither Tekla Capital nor Daniel R. Omstead has the sole power to vote or direct the vote of the shares beneficially owned by Tekla World and Tekla Life, which power resides in each fund's Board of Trustees. Tekla Capital carries out the voting of the shares under written guidelines established by each fund's Board of Trustees. Beneficial ownership information is based on information known to us and a Schedule 13G filed with the Securities and Exchange CommissionSEC on February 13, 2017.12, 2019. Tekla Capital's mailing address is 100 Federal Street, 19th Floor, Boston, MA 02110.
(10)(9) 
Consists of (a) 3,548,768 ordinary shares held directly by Aisling Capital IV, LP, or Aisling, of which 2,074,080 are held in the form of ADSs, and (b) warrants to purchase 589,875 ordinary shares held directly by Aisling. This information is based on information known to us and a TR-1 provided to us on June 6, 2017. The mailing address of Aisling is Aisling Capital, 888 Seventh Avenue, 12th Floor, New York, NY 1010610106.
(10)
Consists of (a) 147,009 ordinary shares, (b) 238,420 ordinary shares issuable from restricted stock units that will vest within 60 days of December 31, 2019 and (c) 1,326,933 options to purchase ordinary shares that are, or will be within 60 days of December 31, 2019, immediately exercisable.
(11) 
Consists of (a) 1,290,352 ordinary shares held directly by Arix Bioscience Holdings Ltd, or Arix, (b) warrants to purchase 516,141 ordinary shares held directly by Arix and (c) 2,110,000 ordinary shares held directly by Wales Life Sciences Investment Fund, or WLSIF. Arthurian Life Sciences Ltd, or Arthurian, is the general partner of WLSIF and a wholly owned subsidiary of Arix. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on August 3, 2016 and January 3, 2017. Arix's mailing address is 20 Berkeley Square, London W1J 6EQ, United Kingdom.

(12)
Canaccord Genuity Group Inc. is the beneficial owner of an aggregate of 3,255,792 ordinary shares held directly by (a) Hargreave Hale which holds 2,941,250130,575 ordinary shares and (b) Canaccord Genuity Wealth Management which holds 314,542 ordinary shares. This information is based on information known to us. The mailing address for Canaccord Genuity Group Inc. is 88 Wood Street, London, UK, EC2V 7QR.
(13)
Consists of (a) 89,150 ordinary shares and (b) 659,992668,566 options to purchase ordinary shares that are, or will be immediately exercisable within 60 days of February 1, 2018.December 31, 2019, immediately exercisable.
(14)
Consists of 100,000 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(15)
Consists of 356,665 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(16)(12) 
Consists of (a) 95,000 ordinary shares and (b) 141,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(17)
Consists of (a) 13,000 ordinary shares and (b) 126,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(18)
Consists of (a) 135,787395,387 ordinary shares and (b) warrants to purchase 4,916 ordinary shares.
(19)
Dr. Sinclair is a Partner and Portfolio Manager at Abingworth LLP. Dr. Sinclair does not have voting or dispositive power over any of the shares directly held by Abingworth Vl referenced in footnote (6) above. Dr. Sinclair's business address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(20)(13) 
Consists of (a) 22,222 ordinary shares and (b) options to purchase 80,256 ordinary shares that are or will be immediately exercisable withinwithint 60 days of February 1, 2018.December 31, 2019.
To our knowledge, and other than changesas provided in percentage ownership as a result of the shares issued in connectiontable above, our other filings with our initial public offering of our ADSs,the SEC and this Annual Report, there has been no significant change in the percentage ownership held by theany major shareholders listed aboveshareholder since January 1, 2017, except as discussed under the heading “Related Party Transactions.”2017.
The major shareholders listed above do not have voting rights with respect to their ordinary shares that are different from the voting rights of other holders of our ordinary shares.
ParticipationB. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2019 or currently in the Global Offering
In April 2017, the holders of 3% or moreeffect with any member of our common shares participated in the global offering as follows:board of directors and executive officers.
InvestorNumber of ADSs or shares subscribed forAggregate purchase price
Novo A/S740,740 ADSsUSD 9,999,990
Vivo Capital affiliates
563,380 ADSsUSD 7,605,630
OrbiMed Private Investments VI, LP
666,666 ADSsUSD 8,999,991
New Enterprise Associates, LP666,666 ADSsUSD 8,999,991
Abingworth Bioventures VI, LP
463,125 ADSsUSD 6,252,188
venBio Select Advisor
875,000 ADSsUSD 11,812,500
Biodiscovery 4 FCPI
444,444 ADSsUSD 5,999,994
Foresite600,000 ADSsUSD 8,100,000
Tekla Capital affiliates275,000 ADSsUSD 3,712,500
Aisling Capital IV, LP259,260 ADSsUSD 3,500,010
Arix Bioscience Holdings Ltd affiliates170,228 ADSsUSD 2,298,078
Canaccord Genuity Group, Inc.1,255,001 sharesGBP 1,656,601
Shareholder Private Placement
In May 2017, we issued and sold 13,373 ordinary shares to our Chairman, Dr. David Ebsworth, for aggregate gross proceeds to us of £18,000.

Registration Rights Agreement
In July 2016, we entered into a registration rights agreement that providedprovides certain demand registration rights to Abingworth Bioventures VI, LP, or Abingworth, Growth Equity Opportunities Fund IV, LLC, OrbiMed Private Investments VI, LP, or OrbiMed, and Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., and Vivo Ventures Fund VI Affiliates Fund, L.P., or collectively, Vivo Capital, with respect to the ordinary shares and any ADSs held by them.
Demand Registration Rights
At any time, the holders of at least a majority of the registrable securities as defined in the registration rights agreement have the right to demand that we effect an underwritten public offering of their registrable securities pursuant to an effective registration statement under the Securities Act. These registration rights are subject to specified conditions and limitations including the right of the underwriters, if any, to limit the number of shares included in any such registration under specified circumstances. Upon such a request, we are required to use commercially reasonable efforts to effect the public offering.
Expenses of Registration
We will pay all expenses relating to any registration under the registration rights agreement, other than selling commission, discounts or brokerage fees and stock transfer taxes, subject to specified conditions and limitations.
Termination of Registration Rights
The registration rights granted under the registration rights agreement shall terminate upon the earlier to occur of (i) the fifth anniversary of the closing of the global offering and (ii) the date on which there are no registrable securities remaining pursuant to the registration rights agreement.
Relationship Agreements
In June 2016, we entered into relationship agreements with each of Vivo Capital, OrbiMed, and Abingworth, pursuant to which our relationship with such parties is regulated and their influence over our corporate actions and activities, and the outcome of general matters pertaining to us, are limited. Pursuant to the relationship agreements, we also agreed to appoint representatives designated by Vivo Capital, OrbiMed, and Abingworth to our board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair, respectively. The appointment rights under the relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of our issued ordinary shares, or (ii) our ordinary shares ceasing to be admitted to AIM. In addition, each of the relationship agreements will automatically terminate upon the first date which Vivo Capital, OrbiMed, or Abingworth, as applicable, cease to have certain rights and obligations under the relationship agreements.
Indemnification Agreements
To the extent permitted by the U.K. Companies Act 2006, we are empowered to indemnify our directors against any liability they incur by reason of their directorship. We have also entered into a deed of indemnity with each of our directors and executive officers and this has been in place since March 31, 2017.officers. In addition to such indemnification, we provide our directors and executive officers with directors’ and officers’ liability insurance.
B. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2017 or currently in effect with any member of our board of directors and executive officers.
Agreements with Our Executive Officers and Directors
We have entered into employment agreements with certain of our executive officers and service agreements with our non‑employee directors. See Item 6B6.B. Compensation and noteNote 8 of our Annual Consolidated Financial Statements included elsewhere in this Annual Report.
Other Transactions
At December 31, 2019, there was a receivable of £nil (2018: £126 thousand) due from one director and two key management personnel relating to tax due on RSUs that vested in the financial statements.
Participation in U.S. Initial Public Offering
As partyear ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. The Company notes that the transaction that generated this receivable was potentially a breach of Section 402 of the global offering our Chairman, Dr. David Ebsworth, purchased 13,373 shares at £1.32 per share generating gross proceedsSarbanes-Oxley Act of £18 thousand. The transaction was on2002. See Item 3.D. Risk Factors-Risks Related to Our ADSs and Ordinary Shares. We may have inadvertently violated Section 13(k) of the same termsExchange Act (implementing Section 402 of the Sarbanes-Oxley Act of 2002) and may be subject to sanctions as third parties.a result.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
C. Interests of Experts and Counsel
Not applicable.


ITEM 8: FINANCIAL INFORMATION
A. Consolidated Statements and Other Financial Information.
Consolidated Financial Statements
Our consolidated financial statements are appended at the end of this Annual Report, starting at page F-1, and are incorporated herein by reference.
Legal Proceedings
We are not subject to any material legal proceedings.
Dividend Distribution Policy
We have never paid or declared any cash dividends on our ordinary shares, and we do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Under English law, among other things, we may only pay dividends if we have sufficient distributable reserves (on a non consolidatednon-consolidated basis), which are our accumulated realized profits that have not been previously distributed or capitalized less our accumulated realized losses, so far as such losses have not been previously written off in a reduction or reorganization of capital.
B. Significant Changes.
There have been no significant changes since December 31, 2017.

2019.

ITEM 9: THE OFFER AND THE LISTING
A. Offer and Listing Details.
Our Ordinary Shares are listed on AIM, a market of the London Stock Exchange, under the symbol “VRP”, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017. The initial public offering price of our ADSs was $13.50 per ADS. The following table sets forth for the periods indicated the high and low sales prices per common share as reported on The Nasdaq Global Market:
   
 Price Per Common ADS ($)
 HighLow
Year Ended December 31,  
2017 (from April 27 through December 31)16.9510.80
Quarter Ended  
Second Quarter 2017 (beginning April 27)16.2611.40
Third Quarter 201716.9511.54
Fourth Quarter 201715.7510.80
First Quarter 2018 (through February 16)13.2511.69
Month of  
August 201712.7011.80
September 201716.9511.96
October 201715.7513.35
November 201714.1310.80
December 201712.1011.30
January 201813.2512.21
February 2018 (through February 16)12.8011.693

Our ordinary shares have been trading on AIM, a market operated by the London Stock Exchange plc, under the symbol “VRP” since September 2006. The following table sets forth, for the periods indicated, the reported high and low closing sale prices of our ordinary shares on AIM in pounds sterling.

    
 Price Per Share (£)
 High Low
Year Ended December 31,   
20132.58 0.88
20142.18 0.53
20153.36 0.60
20162.16 1.19
20171.69 1.04
Quarter Ended   
First Quarter 20162.16 1.19
Second Quarter 20161.86 1.41
Third Quarter 20161.73 1.48
Fourth Quarter 20162.06 1.55
First Quarter 20171.69 1.25
Second Quarter 20171.61 1.11
Third Quarter 20171.53 1.12
Fourth Quarter 20171.48 1.04
First Quarter 2018 (through February 16)1.21 1.02
Month of   
August 20171.24 1.16
September 20171.53 1.12
October 20171.48 1.33
November 20171.34 1.06
December 20171.11 1.04
January 20181.21 1.06
February 2018 (through February 16)1.21 1.02

.
B. Plan of Distribution.
Not applicable.
C. Markets.
Our Ordinary Shares have beenare listed on the AIM, a market of the London Stock Exchange, since September 19, 2006, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017.Market.
D. Selling Shareholders.
Not applicable.
E. Dilution.
Not applicable.

F. Expenses of the Issue.
Not applicable.


ITEM 10: ADDITIONAL INFORMATION
A. Share Capital.
Not applicable.
B. Memorandum and Articles of Association.

A copy of our Articles of Association is attached as Exhibit 1.1 to this Annual Report. The information called for by this Item is set forth in responseExhibit 2.5 to this item is contained under the caption “Description of Share Capital and Articles of Association” in our final prospectus filed with the Securities and Exchange Commission on April 28, 2017Annual Report and is incorporated herein by reference.reference into this Annual Report.
C. Material Contracts.
TheIn addition to the contracts described elsewhere in this Annual Report, the following are summaries of each material contract, other than material contracts entered into in the ordinary course of business, to which we are a party for the two years preceding the date of this Annual Report.
Underwriting Agreement
On April 26, 2017, we entered into an underwriting agreement with Jefferies LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the underwriters, on April 26, 2017, for the initial public offering of 5,768,000 American Depositary Shares in the United States and the private placement of 1,255,001 ordinary shares in Europe. Pursuant to the underwriting agreement, we paid underwriting discounts and commissions of $0.9450 per ADS and £0.0924 per ordinary shares. The underwriting agreement contained customary representations and warranties. We also agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect of such liabilities.
Employment Agreements
We have entered into employment agreements with our executive officers. Information on the employment agreements may be found in this Annual Report under “Item 6.B. Compensation-Executive Officer Remuneration-Executive Officer Employment Agreements” and is incorporated herein by reference.
Indemnification Agreements
We have entered into indemnification agreements with our executive officers and board members. Information on the indemnification agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Indemnification Agreements” and is incorporated herein by reference.
Registration Rights Agreements
We have entered into registration rights agreement with certain of our existing shareholders. Information on the registration rights agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Registration Rights Agreement” and is incorporated herein by reference.
Relationship Agreements
We have entered into relationship agreements with certain of our existing shareholders. Information on these relationship agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Relationship Agreements” and is incorporated herein by reference.
Lease
Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, where we lease office space. We also lease office space in White Plains,New York , New York. The office space in these two locations is held under four leases that terminate between August 2018 and Januaryin 2020 and 2021. We pay £0.5 million per year under these leases we pay £0.3m per year.leases. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.

D. Exchange Controls.
There are no governmental laws, decrees, regulations or other legislation in the United Kingdom that may affect the import or export of capital, including the availability of cash and cash equivalents for use by us, or that may affect the remittance of dividends, interest, or other payments by us to non‑resident holders of our ordinary shares or ADSs, other than withholding tax requirements. There is no limitation imposed by English law or in our Articles of Association on the right of non‑residents to hold or vote shares.
E. Taxation
The following is a description of thecertain material U.S. federal income tax consequences to the U.S. Holders described below of owning and disposing of our ordinary shares or ADSs. It is not a comprehensive description of all tax considerations that may be relevant to a particular person's decision to acquire securities. This discussion applies only to a U.S. Holder that holds our ordinary shares or ADSs as a capital asset for tax purposes (generally, property held for investment). In addition, it does not describe all of the tax consequences that may be relevant in light of a U.S. Holder's particular circumstances, including state and local tax consequences, estate tax consequences, alternative minimum tax consequences, the potential application of the Medicare contribution tax, and tax consequences applicable to U.S. Holders subject to special rules, such as:
banks, insurance companies, and certain other financial institutions;
U.S. expatriates and certain former citizens or long-term residents of the United States;
dealers or traders in securities who use a mark-to-market method of tax accounting;
persons holding our ordinary shares or ADSs as part of a hedging transaction, "straddle," wash sale, conversion transaction or integrated transaction or persons entering into a constructive sale with respect to ordinary shares or ADSs;
persons whose "functional currency" for U.S. federal income tax purposes is not the U.S. dollar;
brokers, dealers or traders in securities, commodities or currencies;
tax-exempt entities or government organizations;
S corporations, partnerships, or other entities or arrangements classified as partnerships for U.S. federal income tax purposes;
regulated investment companies or real estate investment trusts;
persons who acquired our ordinary shares or ADSs pursuant to the exercise of any employee stock option or otherwise as compensation;

persons subject to special tax accounting rules as a result of any item of gross income with respect to ordinary shares or ADSs being taken into account in an applicable financial statement;
persons that own or are deemed to own ten percent or more of our ordinary shares by vote or value; and
persons holding our ordinary shares or ADSs in connection with a trade or business, permanent establishment, or fixed base outside the United States.
If an entity that is classified as a partnership for U.S. federal income tax purposes holds our ordinary shares or ADSs, the U.S. federal income tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. Partnerships holding our ordinary shares or ADSs and partners in such partnerships are encouraged to consult their tax advisers as to the particular U.S. federal income tax consequences of holding and disposing of our ordinary shares or ADSs.
The discussion is based on the Internal Revenue Code of 1986, as amended or the Code,(the "Code"), administrative pronouncements, judicial decisions, final, temporary and proposed Treasury Regulations, and the income tax treaty between the United Kingdom and the United States (the "Treaty") all as of the date hereof, changes to any of which may affect the tax consequences described herein — possibly with retroactive effect.
A "U.S. Holder" is a holder who, for U.S. federal income tax purposes, is a beneficial owner of our ordinary shares or ADSs who is eligible for the benefits of the Treaty and is:

(1)a citizen or individual resident of the United States;
(2)a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States, any state therein or the District of Columbia; or
(3)an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source.
U.S. Holders are encouraged to consult their tax advisers concerning the U.S. federal, state, local and foreign tax consequences of owning and disposing of our ordinary shares or ADSs in their particular circumstances.
The discussion below assumes that the representations contained in the deposit agreement with respect to our ADSs are true and that the obligations in the deposit agreement and any related agreement will be complied with in accordance with their terms. Generally, a holder of an ADS should be treated for U.S. federal income tax purposes as holding the ordinary shares represented by the ADS. Accordingly, no gain or loss will be recognized upon an exchange of ADSs for ordinary shares. The U.S. Treasury has expressed concerns that intermediaries in the chain of ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the beneficial ownership of the underlying security. Accordingly the creditability of foreign taxes, if any, as described below, could be affected by actions taken by intermediaries in the chain of ownership between the holders of our ADSs and our Companycompany if as a result of such actions the holders of our ADSs are not properly treated as beneficial owners of the underlying ordinary shares.
Passive Foreign Investment Company ("PFIC") Rules
Because we dodid not expect to earn revenue from our business operations during the current taxable year ended December 31, 2019, and because our sole source of income currently is interest on bank accounts held by us, we believe we will likely be classified as a PFIC for the current taxable year.year ended December 31, 2019. A non-U.S. corporation will be classified as a PFIC for any taxable year in which, after applying certain look-through rules, either:
at least 75% of its gross income is passive income (such as interest income); or
at least 50% of its gross assets (determined on the basis of a quarterly average) is attributable to assets that produce passive income or are held for the production of passive income.
We will be treated as owning our proportionate share of the assets and earning our proportionate share of the income of any other corporation, the equity of which we own, directly or indirectly, 25% or more (by value).
A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year. As a result, our PFIC status may change. While it is possible we may not meet the PFIC test described above once we start generating substantial revenue from our business operations, the analysis is factual and it is possible we may continue to be a PFIC for future years. In particular, the total value of our assets for purposes of the asset test generally will be calculated using the market price of theour ordinary shares or ADSs, which may fluctuate considerably. Fluctuations in the market price of theour ordinary shares or ADSs may result in our being a PFIC for any taxable year.
If we are classified as a PFIC in any year with respect to which a U.S. Holder owns theour ordinary shares or ADSs, we will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding years during which the U.S. Holder owns theour ordinary shares or ADSs, regardless of whether we continue to meet the tests

described above unless (1) we cease to be a PFIC and the U.S. Holder has made a "deemed sale" election under the PFIC rules, or (2) the U.S. Holder makes a QEF Election (defined below) with respect to taxable years in which we are a PFIC. If such election is made, youthe U.S. Holder will be deemed to have sold theour ordinary shares or ADSs you holdit holds at their fair market value and any gain from such deemed sale would be subject to the rules described below. After the deemed sale election, so long as we do not become a PFIC in a subsequent taxable year, yourthe ordinary shares or ADSs with respect to which such election was made will not be treated as shares in a PFIC and youthe U.S. Holder will not be subject to the rules described below with respect to any "excess distribution" you receiveit receives from us or any gain from an actual sale or other disposition of theour ordinary shares or ADSs. U.S. Holders should consult their tax advisors as to the possibility and consequences of making a deemed sale election if we cease to be a PFIC and such election becomes available.
For each taxable year we are treated as a PFIC with respect to you, youa U.S. Holder, such holder will be subject to special tax rules with respect to any "excess distribution" you receiveit receives and any gain you recognizeit recognizes from a sale or other disposition (including a pledge) of our ordinary shares or ADSs, unless you makesuch holder makes a QEF Election or a mark-to-market election as discussed below. Distributions you receivethat a U.S. Holder receives in a taxable year that are greater than 125% of the average annual distributions you received during the shorter of the three preceding taxable years or yoursuch holder's holding period for theout ordinary shares or ADSs will be treated as an excess distribution. Under these special tax rules:

the excess distribution or gain will be allocated ratably over yoursuch holder's holding period for theour ordinary shares or ADSs;
the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we became a PFIC, will be treated as ordinary income; and
the amount allocated to each other year will be subject to the highest tax rate in effect for that year and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.
The tax liability for amounts allocated to years prior to the year of disposition or "excess distribution" cannot be offset by any net operating losses for such years, and gains (but not losses) realized on the sale of theour ordinary shares or ADSs cannot be treated as capital, even if you hold the U.S. Holder holds our ordinary shares or ADSs as capital assets.
If we are a PFIC, a U.S. Holder will generally be subject to similar rules with respect to distributions we receive from, and our dispositions of the stock of, any of our direct or indirect subsidiaries that also are PFICs, as if such distributions were indirectly received by, and/or dispositions were indirectly carried out by, such U.S. Holder. U.S. Holders should consult their tax advisors regarding the application of the PFIC rules to our subsidiaries.
U.S. Holders can avoid the interest charge on excess distributions or gain relating to theour ordinary shares or ADSs by making a mark-to-market election with respect to theour ordinary shares or ADSs, provided that theour ordinary shares or ADSs are "marketable." OrdinaryOur ordinary shares or ADSs will be marketable if they are "regularly traded" on certain U.S. stock exchanges or on a foreign stock exchange that meets certain conditions. For these purposes, theour ordinary shares or ADSs will be considered regularly traded during any calendar year during which they are traded, other than in de minimis quantities, on at least 15 days during each calendar quarterquarter. Any trades that have as their principal purpose meeting this requirement will be disregarded. Our ADSs will beare listed on the Nasdaq Global Market and our ordinary shares are traded on AIM, a market of the London Stock Exchange, each of, which is a qualified exchange for these purposes. Consequently, if our ADSs remain listed on the Nasdaq Global Market or our ordinary shares remain listed on AIM and, in each case, are regularly traded, and you are a holder of ADSs, we expect the mark-to-market election would be available to youU.S. Holders of such ordinary shares or ADSs if we are a PFIC (which we believe likely for the current year). Each U.S. Holder should consult its tax advisor as to the whether a mark-to-market election is available or advisable with respect to theour ordinary shares or ADSs.
A U.S. Holder that makes a mark-to-market election must include in ordinary income for each year an amount equal to the excess, if any, of the fair market value of theour ordinary shares or ADSs at the close of the taxable year over the U.S. Holder's adjusted tax basis in theour ordinary shares or ADSs. An electing holder may also claim an ordinary loss deduction for the excess, if any, of the U.S. Holder's adjusted basis in theour ordinary shares or ADSs over the fair market value of theour ordinary shares or ADSs at the close of the taxable year, but this deduction is allowable only to the extent of any net mark-to-market gains for prior years. Gains from an actual sale or other disposition of theour ordinary shares or ADSs will be treated as ordinary income, and any losses incurred on a sale or other disposition of theour ordinary shares or ADSs will be treated as an ordinary loss to the extent of any net mark-to-market gains for prior years. Once made, the election cannot be revoked without the consent of the IRSU.S. Internal Revenue Service (the "IRS"), unless theour ordinary shares or ADSs cease to be marketable.

However, a mark-to-market election generally cannot be made for equity interests in any lower-tier PFICs that we own, unless shares of such lower-tier PFIC are themselves "marketable." We believe that
Rhinopharma Limited will likely be treated as a lower-tier PFIC. As a result, even if a U.S. Holder validly makes a mark-to-market election with respect to our ordinary shares or ADSs, the U.S. Holder may continue to be subject to the PFIC rules (described above) with respect to its indirect interest in any of our investments that are treated as an equity interest in a PFIC for U.S. federal income tax purposes. U.S. Holders should consult their tax advisors as to the availability and desirability of a mark-to-market election, as well as the impact of such election on interests in any lower-tier PFICs.
Alternatively, a U.S. Holder can make an election, if we provide the necessary information, to treat us and each lower-tier PFIC as a qualified electing fund (a "QEF Election") in the first taxable year we (and our relevant subsidiaries) are treated as a PFIC with respect to the holder. If such election remains in place while we and any lower-tier PFIC subsidiaries are PFICs, we and our subsidiaries will not be treated as PFICs with respect to such U.S. Holder when we cease to be a PFIC. A U.S. Holder must make the QEF Election for each PFIC by attaching a separate properly completed IRS Form 8621 for each PFIC to the holder's timely filed U.S. federal income tax return. We will provide the information necessary for a U.S. Holder to make a QEF Election with respect to us and will cause each lower-tier PFIC which we control to provide such information with respect to such lower-tier PFIC.

If a U.S. Holder makes a QEF Election with respect to a PFIC, the holder will be currently taxable on its pro rata share of the PFIC's ordinary earnings and net capital gain (at ordinary income and capital gain rates, respectively) for each taxable year that the entity is classified as a PFIC. If a U.S. Holder makes a QEF Election with respect to us, any distributions paid by us out of our earnings and profits that were previously included in the holder's income under the QEF Election would not be taxable to the holder. A U.S. Holder will increase its tax basis in itsour ordinary shares or ADSs by an amount equal to any income included under the QEF Election and will decrease its tax basis by any amount distributed on theour ordinary shares or ADSs that is not included in the holder's income. In addition, a U.S. Holder will recognize capital gain or loss on the disposition of our ordinary shares or ADSs in an amount equal to the difference between the amount realized and the holder's adjusted tax basis in theour ordinary shares or ADSs. U.S. Holders should note that if they make QEF Elections with respect to us and lower-tier PFICs, they may be required to pay U.S. federal income tax with respect to theirour ordinary shares or ADSs for any taxable year significantly in excess of any cash distributions received on theour ordinary shares or ADSs for such taxable year. U.S. Holders should consult their tax advisors regarding making QEF Elections in their particular circumstances.
Unless otherwise provided by the U.S. Treasury, each U.S. shareholderHolder of a PFIC is required to file an annual report containing such information as the U.S. Treasury may require. A U.S. Holder's failure to file the annual report will cause the statute of limitations for such U.S. Holder's U.S. federal income tax return to remain open with regard to the items required to be included in such report until three years after the U.S. Holder files the annual report, and, unless such failure is due to reasonable cause and not willful neglect, the statute of limitations for the U.S. Holder's entire U.S. federal income tax return will remain open during such period. U.S. Holders should consult their tax advisors regarding the requirements of filing such information returns under these rules.
Taxation of Distributions
Subject to the discussion above under "Passive Foreign Investment Company ("PFIC") Rules," distributions paid on our ordinary shares or ADSs, other than certain pro rata distributions of ordinary shares or ADSs, will generally be treated as dividends to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Because we do not calculate our earnings and profits under U.S. federal income tax principles, we expect that distributions generally will be reported to U.S. Holders as dividends. Subject to applicable limitations, dividends paid to certain non-corporate U.S. Holders may be taxable at preferential rates applicable to "qualified dividend income." However, the qualified dividend income treatment may not apply if we are treated as a PFIC with respect to the U.S. Holder. The amount of a dividend will include any amounts withheld by us in respect of United Kingdom income taxes. The amount of the dividend will be treated as foreign-source dividend income to U.S. Holders and will not be eligible for the dividends-received deduction generally available to U.S. corporations under the Code. Dividends will generally be included in a U.S. Holder's income on the date of the U.S. Holder's receipt of the dividend. The amount of any dividend income paid in foreign currency will be the U.S. dollar amount calculated by reference to the exchange rate in effect on the date of actual or constructive receipt, regardless of whether the payment is in fact converted into U.S. dollars. If the dividend is converted into U.S. dollars on the date of receipt, a U.S. Holder should not be required to recognize foreign currency gain or loss in respect of the dividend income. A U.S. Holder may have foreign currency gain or loss if the dividend is converted into U.S. dollars after the date of receipt. Such gain or loss would generally be treated as U.S.-source ordinary income or loss. The amount of any distribution of

property other than cash (and other than certain pro rata distributions of ordinary shares or ADSs or rights to acquire ordinary shares or ADSs) will be the fair market value of such property on the date of distribution.
For foreign tax credit purposes, our dividends will generally be treated as passive category income. Subject to applicable limitations, some of which vary depending upon the U.S. Holder's particular circumstances, any United Kingdom income taxes withheld from dividends on our ordinary shares or ADSs at a rate not exceeding the rate provided by the Treaty will be creditable against the U.S. Holder's U.S. federal income tax liability. The rules governing foreign tax credits are complex and U.S. Holders should consult their tax advisers regarding the creditability of foreign taxes in their particular circumstances. In lieu of claiming a foreign tax credit, U.S. Holders may, at their election, deduct foreign taxes, including any United Kingdom income tax, in computing their taxable income, subject to generally applicable limitations under U.S. law. An election to deduct foreign taxes instead of claiming foreign tax credits applies to all foreign taxes paid or accrued in the taxable year.

Sale or Other Taxable Disposition of Our Ordinary Shares and ADSs
Subject to the discussion above under "Passive Foreign Investment ("PFIC") Company Rules," gain or loss realized on the sale or other taxable disposition of our ordinary shares or ADSs will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder held theour ordinary shares or ADSs for more than one year. The amount of the gain or loss will equal the difference between the U.S. Holder's tax basis in theour ordinary shares or ADSs disposed of and the amount realized on the disposition, in each case as determined in U.S. dollars. This gain or loss will generally be U.S.-source gain or loss for foreign tax credit purposes. The deductibility of capital losses is subject to limitations.
If the consideration received by a U.S. Holder is not paid in U.S. dollars, the amount realized will be the U.S. dollar value of the payment received determined by reference to the spot rate of exchange on the date of the sale or other disposition. However, if theour ordinary shares or ADSs are treated as traded on an "established securities market" and youthe U.S. Holder is are either a cash basis taxpayer or an accrual basis taxpayer that has made a special election (which must be applied consistently from year to year and cannot be changed without the consent of the IRS), yousuch holder will determine the U.S. dollar value of the amount realized in a non-U.S. dollar currency by translating the amount received at the spot rate of exchange on the settlement date of the sale. If you area U.S. Holder is an accrual basis taxpayer that is not eligible to or does not elect to determine the amount realized using the spot rate on the settlement date, yousuch holder will recognize foreign currency gain or loss to the extent of any difference between the U.S. dollar amount realized on the date of sale or disposition and the U.S. dollar value of the currency received at the spot rate on the settlement date.
WE STRONGLY URGE YOUINVESTORS IN OUR ORDINARY SHARES OR ADSs TO CONSULT YOURTHEIR TAX ADVISORADVISORS REGARDING THE IMPACT OF OUR PFIC STATUS ON YOURTHEIR INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs AS WELL AS THE APPLICATION OF THE PFIC RULES TO YOURSUCH INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs.
Information Reporting and Backup Withholding
Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries generally are subject to information reporting, and may be subject to backup withholding, unless (i) the U.S. Holder is a corporation or other exempt recipient or (ii) in the case of backup withholding, the U.S. Holder provides a correct taxpayer identification number and certifies that it is not subject to backup withholding.
Backup withholding is not an additional tax. The amount of any backup withholding from a payment to a U.S. Holder will be allowed as a credit against the holder's U.S. federal income tax liability and may entitle it to a refund, provided that the required information is timely furnished to the IRS.
Information with Respect to Foreign Financial Assets
Certain U.S. Holders who are individuals (and, under proposed regulations, certain entities) may be required to report information relating to theour ordinary shares or ADSs, subject to certain exceptions (including an exception for ordinary shares or ADSs held in accounts maintained by certain U.S. financial institutions). U.S. Holders should consult their tax advisers regarding their reporting obligations with respect to their ownership and disposition of theour ordinary shares or ADSs.
F. Dividends and Paying Agents.
Not applicable.

G. Statement by Experts.
Not applicable.
H. Documents on Display.
We maintain a corporate website at www.veronapharma.com. We make available free of charge on our website our Reports on Form 6-K, and we intend make available our Annual Reports on Form 20-F, as soon as reasonably practicable afterand any other reports that we electronically file such material with, or furnish it to,with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included our website address in this Annual Report solely as an inactive textual reference.

You may also review a copy of this Annual Report, including exhibits and any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SEC’s Public Reference Room in Room 1580, 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website (www.sec.gov)at www.sec.gov that contains reports, proxy and information statements and other information regarding registrantsissuers that file electronically, such as us, with the SEC.
References made in this Annual Report to any contract or certain other document of Verona Pharma plc are not necessarily complete and you should refer to the exhibits attached or incorporated by reference into this Annual Report for copies of the actual contract or document.
I. Subsidiary Information.
Not applicable.



ITEM 11: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to a variety of financial risks. Our overall risk management program seeks to minimize potential adverse effects of these financial risks on our financial performance.
Credit Risk
We consider all of our material counterparties to be creditworthy. We consider the credit risk for each of our counterparties to be low and do not have a significant concentration of credit risk at any of our counterparties.
Liquidity Risk
We manage our liquidity risk by maintaining adequate cash reserves at banking facilities, and by continuously monitoring our cash forecasts, our actual cash flows and by matching the maturity profiles of financial assets and liabilities.
Currency Risk
Foreign currency risk reflects the risk that the value of a financial commitment or recognized asset or liability will fluctuate due to changes in foreign currency rates. Our financial position, as expressed in pounds sterling, are exposed to movements in foreign exchange rates against the U.S. dollar and the Euro. Our main trading currencies are pounds sterling, the U.S. dollar and the Euro. We are exposed to foreign currency risk as a result of operating transactions and the translation forof foreign bank accounts. We monitor our exposure to foreign exchange risk. We have not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
Interest rate Risk
Interest rate risk reflects the risk that the value of a financial instrument will fluctuate as a result of a change in market interest rates on classes of financial assets and financial liabilities. We do not hold any derivative instruments to manage interest rate risk.
See note 3.1 of the financial statements for quantitative disclosures about market risk.


ITEM 12: DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A. Debt Securities.
Not applicable.
B. Warrants and Rights.
Not applicable.
C. Other Securities.
Not applicable.

D. American Depositary Shares.

Fees and Charges
Holders of our ADSs are required to pay the following fees under the terms of the deposit agreement:

 
Service Fee
Issuance of ADSs (e.g., an issuance of ADS upon a deposit of ordinary shares or upon a change in the ADS(s)‑to‑ordinary shares ratio), excluding ADS issuances as a result of distributions of ordinary shares Up to $0.05 per ADS issued
Cancellation of ADSs (e.g., a cancellation of ADSs for delivery of deposited property or upon a change in the ADS(s)‑to‑ordinary shares ratio) Up to $0.05 per ADS cancelled
Distribution of cash dividends or other cash distributions (e.g., upon a sale of rights and other entitlements) Up to $0.05 per ADS held
Distribution of ADSs pursuant to (i) stock dividends or other free stock distributions, or (ii) exercise of rights to purchase additional ADSs Up to $0.05 per ADS held
Distribution of securities other than ADSs or rights to purchase additional ADSs (e.g., upon a spin‑off) Up to $0.05 per ADS held
ADS Services Up to $0.05 per ADS held on the applicable record date(s) established by the depositary
Holders of our ADSs are also responsible to pay certain charges such as:
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) the issuance of ADSs, and (ii) the cancellation of ADSs are charged to the person to whom the ADSs are issued (in the case of ADS issuances) and to the person whose ADSs are cancelled (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs being issued or the DTC participant(s) holding the ADSs being cancelled, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to the account of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participants as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges holders of our ADSs may be required to pay may vary over time and may be changed by us and by the depositary. Holders of our ADSs will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADRADS program, by making available a portion of the ADS fees charged in respect of the ADRADS program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.


PART II
ITEM 13: DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
None.

ITEM 14: MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
A.    Not applicableNone
B.    Not applicableNone
C.    Not applicableNone
D.    Not applicableNone

E.    Use of Proceeds.
In May 2017, we completed the initial public offering of our American Depositary SharesADSs in the United States and a private placement of our ordinary shares in Europe, or the global offering. In the global offering we issued and sold 6,501,738 ADSs, including 733,738 ADSs issued and sold upon the partial exercises ofby the underwriters pursuant to their overallotment option to purchase additional ADSs, at a public offering price of $13.50 per ADS, and 1,225,001 ordinary shares at an offering price of £1.32 per share.
The offer and sale of all of the ADSs and ordinary shares in the global offering was registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124), which was declared effective by the SEC on April 26, 2017, and a registration statement on Form F-1 to register additional securities (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, or, together, the Registration Statement. Under the Registration Statement, we registered 5,768,000 ADSs, 1,225,001 ordinary shares, and 865,200 ADSs issuable upon exercise of the underwriters’ option to purchase additional ADSs at a public offering price of $13.50 per ADS and £1.32 per ordinary share, for a registered aggregate offering price of approximately $89.9 million including the 733,738 ADSs issued and sold upon the partial exercises of the underwriters’ option to purchase additional ADSs. Following the sale of the ADSs and ordinary shares in connection with the closing of the global offering, the offering terminated. The offering commenced on April 18, 2017 and did not terminate until the sale of all of the shares offered. Jefferies LLC and Stifel, Nicholaus & Company, Incorporated acted as joint book-running managers of the offering, and Wedbush Securities Inc. and SunTrust Robinson Humphrey, Inc. acted as co-managers of the offering.
In addition, a further 254,099 shares were issued to private investors for proceeds of $0.4m.
We received aggregate gross proceeds from the global offering of approximately $90.3$89.9 million, orand aggregate net proceeds of approximately $80.8 million after deducting underwriting discounts and commissions of approximately $6.3 million and offering expenses of approximately $3.2 million. No payments for such expenses were made directly or indirectly to (i) any of our officers, members of our board of directors, or their associates, (ii) any persons owning 10% or more of any class of our equity securities or (iii) any of our affiliates.
The offer and sale of the ADSs and ordinary shares in the global offering were registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124) to register ordinary shares, which was declared effective by the SEC on April 26, 2017, a registration statement on Form F-1 to register additional ordinary shares (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, and a registration statement on Form F-6 (File No. 333-217353) to register the ADSs, which was declared effective by the SEC on April 26, 2017, or, collectively, the Registration Statements. Under the Registration Statements, we registered an aggregate offering price of approximately $91.7 million of ordinary shares and 100,000,000 ADSs for a registered aggregate offering price of $5.0 million.
There has been no material change in our planned use of the net proceeds from the global offering as described in our final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act with the SEC on April 28, 2017.

ITEM 15: CONTROLS AND PROCEDURES
Limitations on Effectiveness of Controls and Procedures
In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.
Disclosure Controls and Procedures.
Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended)Act), as of the end of the period covered by this Annual Report on Form 20-F.Report. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date,December 31, 2019, our disclosure controls and procedures were effective ateffective.
Management’s Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, as such term is defined in Rule 13a-15(f) under the reasonable assurance level asExchange Act.
Our management conducted an assessment of December 31, 2017.

This annual report does not include a reportthe effectiveness of management’s assessment regardingour internal control over financial reporting or an attestation reportbased on the criteria set forth in “Internal Control – Integrated Framework (2013)” issued by the Committee of Sponsoring Organizations of the company’s registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.Treadway Commission.

Material Weaknesses in Internal Control Over Financial Reporting.
This Annual ReportBased on Form 20-F does not include a reportthis assessment, our management concluded that, as of management’s assessment regardingDecember 31, 2019, our internal control over financial reporting orwas effective.
Attestation Report of the Registered Public Accounting Firm
This Annual Report does not include an attestation report of our registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.
In connection with the preparation for the initial public offering of our ADSs, we reassessed our critical accounting policies to ensure compliance with IFRS. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma Ltd. in September 2006. We concluded that a lack of adequate controls surrounding our historic accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standardsan exemption established by the U.S. Public Accounting Oversight Board
We have remediated this material weakness by the hiring of our chief financial officer in September 2016 and enhancing our financial reporting team’s technical accounting knowledge associated with the accounting rulesJOBS Act for business combinations. However, we cannot be certain that these efforts will prevent future material weaknesses or significant deficiencies from occurring.Review updated remediation language.“emerging growth companies.”
Changes in Internal Control Overover Financial Reporting.Reporting
Other than as discussed above, there has beenThere were no changechanges in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the period covered by this annual reportAnnual Report that hashave materially affected, or isare reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A: AUDIT COMMITTEE FINANCIAL EXPERT
Our board of directors has determined that Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair each qualify as an audit committee financial expert as defined by the rules of the Securities and Exchange CommissionSEC and has the requisite financial sophistication under the applicable rules and regulations of Nasdaq. Mr. Sinha and Drs. Ebsworth and Sinclair are each independent as such term is defined in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, and under the listing standards of Nasdaq.


ITEM 16B: CODE OF ETHICS
Code of Business Conduct and Ethics
We have adopted a Code of Business Conduct and Ethics, or the Code of Conduct, that is applicable to all of our employees, executive officers, including our principal executive, principal financial and principal accounting officers, members of our board of directors, and consultants. The Code of Conduct is available on our website at www.veronapharma.com. We will provide a copy of our Code of Conduct to any person without charge upon written request sent to:
Verona Pharma plc
3 More London Riverside
London SE1 2RE
United Kingdom
Attn: Secretary
We intend to satisfy the disclosure requirement under Item 16B(e)16B(d) and (e) of Form 20-F regarding amendment to, or waiver from, a provision of our Code of Conduct, as well as Nasdaq’s requirement to disclose waivers with respect to directors and executive officers, by posting such information onin the "Investors" section of our website at the address and location specified above.www.veronapharma.com. Our executive officers are responsible for administering the Code of Conduct. Amendment, alteration or termination of the Code of Conduct requires the approval of our board of directors.


ITEM 16C: PRINCIPAL ACCOUNTANT FEES AND SERVICES

The following table summarizes the fees of PricewaterhouseCoopers LLP, our independent registered public accounting firm, billed to us for each of the last two fiscal years for audit and other services:
Fee Category2016
 2017
2019
 2018
£'000s
 £'000s
£'000s
 £'000s
Audit Fees80
 117
148
 114
Audit-Related Fees525
 333
52
 68
Other Services
 150
67
 86
Total Fees605
 600
267
 268
Audit-Related Fees
For the yearyears ended December 31, 2017,2019 and 2018, audit related services include fees for quarterly interim reviews, advice on compliance with Sarbanes-Oxley legislation and assurance on information included in the Company's U.S. registration statement for the April 2017 initial public offering in the United States (the"Global Offering"). For the year ended December 31, 2017, an amount of £256 thousand in relation to these services was offset against share premium on completion of the Global Offering.
For the year ended December 31, 2016, audit related services include assurance reporting on historical financial information included in the Company's U.S. registration statement for the Global Offering. As at December 31, 2016 an amount of £466 thousand in relation to these services was booked in deferred IPO costs that was offset against share premium on completion of the Global Offering.reviews.
Tax Fees
We did not incur any tax fees for services from PricewaterhouseCoopers LLP in 20162019 or 2017.2018.
All Other Fees
We did not incur anyFor the year ended December 31, 2019 other fees in 2017 or 2016.related to advice relating to fund raising.
For the year ended December 31, 2018, other fees related to a review of the Company’s F-3 shelf registration statement.
Audit Committee Pre-Approval Policy and Procedures
The Audit Committee has adopted a policy, or the Pre-Approval Policy, which sets forth the procedures and conditions pursuant to which audit and non-audit services proposed to be performed by the independent auditor may be pre-approved. The Pre-Approval Policy generally provides that we will not engage PricewaterhouseCoopers LLP to render any audit, audit-related, tax or permissible non-audit service unless the service is either (i) explicitly approved by the Audit Committee, or specific pre-approval, or (ii) entered into pursuant to the pre-approval policies and procedures described in the Pre-Approval Policy, or general pre-approval. Unless a type of service to be provided by PricewaterhouseCoopers LLP has received general pre-approval under the Pre-Approval Policy, it requires specific pre-approval by the Audit Committee or by a designated member of the Audit Committee to whom the committee has delegated the authority to grant pre-approvals. Any proposed services exceeding pre-approved cost levels or budgeted amounts will also require specific pre-approval. For both types of pre-approval, the Audit Committee will consider whether such services are consistent with the SEC’s rules on auditor independence. The Audit Committee will also consider whether the independent auditor is best positioned to provide the most effective and efficient service, for reasons such as its familiarity with our business, people, culture, accounting systems, risk profile and other factors, and whether the service might enhance our ability to manage or control risk or improve audit quality. All such factors will be considered as a whole, and no one factor should necessarily be determinative. The Audit Committee may also review and generally pre-approve the services (and related fee levels or budgeted amounts) that may be provided by PricewaterhouseCoopers LLP without first obtaining specific pre-approval from the Audit Committee. The Audit Committee may revise the list of general pre-approved services from time to time, based on subsequent determinations.


ITEM 16D: EXEMPTIONS FORM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None
ITEM 16E: PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

None

ITEMS 16F: CHANGE IN REGISTRANT'S CERTIFYING ACCOUNTANT
There has been no change in our independent accountant during our two most recent fiscal years.


ITEM 16G: CORPORATE GOVERNANCE
As a “foreign private issuer,” as defined by the SEC, we are permitted to follow home country corporate governance practices, instead of certain corporate governance practices required by Nasdaq for domestic issuers.issuers, with certain exceptions. While we voluntarily follow most Nasdaq corporate governance rules, we follow U.K. corporate governance practices in lieu of Nasdaq corporate governance rules as follows:
We do not follow Nasdaq Rule 5620(c) regarding quorum requirements applicable to meetings of shareholders. Such quorum requirements are not required under English law. In accordance with generally accepted business practice, our articles of association provide alternative quorum requirements that are generally applicable to meetings of shareholders.
We do not follow Nasdaq Rule 5605(b)(2), which requires that independent directors regularly meet in executive session, where only independent directors are present. Our independent directors may choose to meet in executive session at their discretion.

ITEM 16H: MINE SAFETY DISCLOSURE

None

PART III
ITEM 17: FINANCIAL STATEMENTS

We have elected to provide financial statements pursuant to Item 18.

ITEM 18: FINANCIAL STATEMENTS

The financial statements required under this Item 18 are filed as part of this Annual Report beginning on page F-1.F-1.The audit report of PricewaterhouseCoopers LLP, independent registered public accounting firm, is included herein preceding the financial statements.


ITEM 19: EXHIBITS

The Exhibits listed in the Exhibit Index at the end of this Annual Report are filed as Exhibits to this Annual Report.


   Incorporated by Reference to Filings Indicated
       
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
       
       
F-1 333-2171243.1
4/3/2017 
       
20-F001-380672.1
2/27/2018 
       
20-F001-380672.2
2/27/2018 
       
F-1 333-2171244.3
4/3/2017 
       
F-1 333-2171244.4
4/3/2017 
       
    *
F-1 333-21712410.1
4/3/2017 
       
F-1 333-21712410.2
4/3/2017 
       

20-F001-380674.3
3/19/2019 
       
20-F001-380674.3.1
3/19/2019 
       
20-F001-380674.3.2
3/19/2019 
       
    *
       
    *
       

    
*

       
    
*

       
F-1 333-21712410.4
4/3/2017 
       
F-1 333-21712410.5
4/3/2017 
       
20-F001-380674.6
2/27/2018 
       

    *
       
20-F001-380674.3.2
3/19/2019 
       
F-1 333-21712410.8
4/3/2017 
       
F-1 333-21712410.9
4/3/2017 
       
F-1/A 333-21712410.11.1
4/18/2017 
       
F-1/A 333-21712410.11.2
4/18/2017 
       
F-1 333-21712410.12
4/3/2017 
       
F-1 333-21712410.13
4/3/2017 
       
F-1 333-21712410.14
4/3/2017 
       
F-1 333-21712421.1
4/3/2017 
       
    *
       
    *
       
    **
       
    **
       
    *

   Incorporated by Reference to Filings Indicated
    
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
No.
DateFurnished

1.1Articles of Association, as amended and as currently in effectF-1 333-2171243.1
4/3/2017 
       
Deposit Agreement     *
       
2.2Form of American Depositary Receipt (included in Exhibit 2.1)     *
       
2.3Form of Warrant issued to each of the investors named in Schedule A theretoF-1 333-2171244.3
4/3/2017 
       
2.4Warrant Instrument issued to NPlus1 Singer LLPF-1 333-2171244.4
4/3/2017 
       
4.1Registration Rights Agreement, dated July 29, 2016, by and among Verona Pharma plc and the investors set forth thereinF-1 333-21712410.1
4/3/2017 
       
4.2†Intellectual Property Assignment and Licence Agreement between Vernalis Development Limited and Rhinopharma Limited, as predecessor to Verona Pharma plc, dated February 7, 2005F-1 333-21712410.2
4/3/2017 
       
4.3Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 and related Renewal Agreements dated September 30, 2015 and October 1, 2016F-1 333-21712410.3
4/3/2017 
       
4.3.1Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.1
4/3/2017 
       
4.3.2Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.2
4/3/2017 
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 (exhibit 4.3)     *
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016 (exhibits 4.3.1 and 4.3.2)     *
       
4.4#EMI Option SchemeF-1 333-21712410.4
4/3/2017 
       

4.5#Unapproved Share Option Scheme, as amendedF-1 333-21712410.5
4/3/2017 
       
2017 Incentive Award Plan and forms of award agreements thereunder    *
       
4.7#Employment Agreement, dated April 30, 2012, as amended, between Verona Pharma plc and Jan-Anders KarlssonF-1 333-21712410.6
4/3/2017 
       
4.8#Offer Letter, dated December 15, 2014, as amended, between Verona Pharma plc and Kenneth NewmanF-1 333-21712410.7
4/3/2017 
       
4.9#Employment Agreement, dated September 24, 2016, between Verona Pharma plc and Piers John MorganF-1 333-21712410.8
4/3/2017 
       
4.10#Employment Agreement, dated October 1, 2016, between Verona Pharma plc and Claire PollF-1 333-21712410.9
4/3/2017 
       
4.11#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.10
4/3/2017 
       
4.12#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.16
4/3/2017 
       
Employment Agreement, dated May 1, 2017, between Verona Pharma plc and Desiree Luthman[2]    *
       
4.14Form of Indemnification Agreement for board membersF-1/A 333-21712410.11.1
4/18/2017 
       
4.15Form of Indemnification Agreement for executive officersF-1/A 333-21712410.11.2
4/18/2017 
       
4.16Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, OrbiMed Private Investments VI, LP and NPlus1 Singer Advisory LLPF-1 333-21712410.12
4/3/2017 
       
4.17Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Abingworth Bioventures VI LP and NPlus1 Singer Advisory LLPF-1 333-21712410.13
4/3/2017 
       
4.18Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. and NPlus1 Singer Advisory LLPF-1 333-21712410.14
4/3/2017 
       
8.1List of SubsidiariesF-1 333-21712410.14
4/3/2017 
       

Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer    *
       
Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer    *
       
Section 1350 Certification of Chief Executive Officer**
Section 1350 Certification of Chief Financial Officer**
Consent of PricewaterhouseCoopers LLP    *
       
101.INS    *
       
101.SCH    *
       
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
101.DEF    *
 
*Filed herewith.
**Furnished herewith.
#Indicates management contract or compensatory plan.
Confidential treatment granted as to portions of the exhibit. Confidential materials omitted and filed separately with the Securities and Exchange Commission.SEC.






SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

VERONA PHARMA PLC
By: /s/ David Zaccardelli
Name: David Zaccardelli, Pharm. D
Title: Chief Executive Officer

Date: February 27, 2020

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
Consolidated financial statements
as of and for the years ended December 31, 2016 and 2017


pwclogo.jpg
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Verona Pharma Plc

Opinion on the Financial Statements

We have audited the accompanying consolidated statementstatements of financial position of Verona Pharma Plc and its subsidiaries (the “Company”) as of December 31, 20172019 and December 31, 20162018, and the related consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 20172019, including the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172019 and December 31, 2016,2018, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172019 in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Change in Accounting Principle

As discussed in Note 2.17 to the consolidated financial statements, the Company changed the manner in
which it accounts for its contingent liability in 2019.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.




/s/ PricewaterhouseCoopers LLP
Reading, United Kingdom
February 27, 20182020


We have served as the Company's auditor since 2015.

PricewaterhouseCoopers LLP, 3 Forbury Place, 23 Forbury Road, Reading, Berkshire, RG1 3JH
T: +44 (0) 118 597 111, F: +44 (0) 1189 383 020, www.pwc.co.uk

PricewaterhouseCoopers LLP is a limited liability partnership registered in England with registered number OC303525. The registered office of
PricewaterhouseCoopers LLP is 1 Embankment Place, London WC2N 6RH. PricewaterhouseCoopers LLP is authorised and regulated by the Financial Conduct Authority for designated investment business.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF FINANCIAL POSITION
AS OF DECEMBER 31, 20162019 AND 20172018
Notes As of
December 31, 2016
 As of
December 31, 2017
Notes As of
December 31, 2019
 Restated As of
December 31, 2018
  £'000s £'000s  £'000s £'000s
ASSETS          
Non-current assets:          
Goodwill11
 441
 441
11
 441
 441
Intangible assets12
 1,877
 1,969
12
 2,757
 2,618
Property, plant and equipment13
 14
 16
13
 43
 21
Right-of-use assets14
 971
 
Total non-current assets  2,332
 2,426
  4,212
 3,080
          
Current assets:          
Prepayments and other receivables14
 2,959
 1,810
15
 2,770
 2,463
Current tax receivable  1,067
 5,006
  7,396
 4,499
Short term investments3
 
 48,819
  7,823
 44,919
Cash and cash equivalents  39,785
 31,443
  22,934
 19,784
Total current assets  43,811
 87,078
  40,923
 71,665
Total assets  46,143
 89,504
  45,135
 74,745
     
   
  
EQUITY AND LIABILITIES          
Capital and reserves attributable to equity holders:          
Share capital15
 2,568
 5,251
16
 5,266
 5,266
Share premium  58,526
 118,862
  118,862
 118,862
Share-based payment reserve  2,103
 5,022
  10,364
 7,923
Accumulated loss  (28,728) (49,254)  (100,627) (68,633)
Total equity  34,469
 79,881
  33,865
 63,418
          
Current liabilities:   
  
   
  
Derivative financial instrument19
 7,923
 1,273
18
 895
 2,492
Lease liability14
 460
 
Trade and other payables17
 2,823
 7,154
19
 8,261
 7,733
Tax payable—U.S. Operations  126
 169
Total current liabilities  10,872
 8,596
  9,616
 10,225
          
Non-current liabilities:          
Assumed contingent obligation18
 802
 875
Assumed contingent liability20
 1,103
 996
Non-current lease liability14
 491
 
Deferred income  
 152
  60
 106
Total non-current liabilities  802
 1,027
  1,654
 1,102
Total equity and liabilities  46,143
 89,504
  45,135
 74,745
The accompanying notes form an integral part of these consolidated financial statements.


VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF COMPREHENSIVE INCOME
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
Notes Year Ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
Notes Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year Ended December 31, 2017
 £'000s £'000s £'000s £'000s £'000s £'000s
Research and development costs (7,270) (4,522) (23,717) (33,476) (19,294) (23,717)
General and administrative costs (1,706) (2,498) (6,039) (7,607) (6,297) (6,039)
Operating loss7 (8,976) (7,020) (29,756)7 (41,083) (25,591) (29,756)
Finance income9 45
 1,841
 7,018
9 2,351
 2,783
 7,018
Finance expense9 (73) (794) (2,465)9 (474) (1,325) (2,465)
Loss before taxation (9,004) (5,973) (25,203) (39,206) (24,133) (25,203)
Taxation — credit10 1,509
 954
 4,706
10 7,265
 4,232
 4,706
Loss for the year (7,495) (5,019) (20,497) (31,941) (19,901) (20,497)
Other comprehensive income / (loss) :      
Other comprehensive income / (loss):      
Items that might be subsequently reclassified to profit or loss            
Exchange differences on translating foreign operations 4
 43
 (29) (33) 38
 (29)
Total comprehensive loss attributable to owners of the Company (7,491) (4,976) (20,526) (31,974) (19,863) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (37.1) (15.0) (23.4)5 (30.3) (18.9) (23.4)
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2015, 2016 AND 2017
 Year ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(9,004) (5,973) (25,203)
Finance income(45) (1,841) (7,018)
Finance expense73
 794
 2,465
Share-based payment charge399
 577
 2,919
Decrease / (increase) in prepayments and other receivables59
 (1,809) (161)
Increase in trade and other payables1,274
 1,068
 5,363
Depreciation of property, plant and equipment10
 10
 7
Loss on disposal of property, plant and equipment
 3
 
Loss on disposal of intangible assets135
 
 
Amortization of intangible assets43
 52
 116
Cash used in operating activities(7,056) (7,119) (21,512)
Cash inflow from taxation700
 1,533
 816
Net cash used in operating activities(6,356) (5,586) (20,696)
Cash flow from investing activities:     
Interest received51
 87
 128
Purchase of plant and equipment(1) (13) (9)
Payment for patents and computer software(142) (115) (208)
Transfer to short term investments
 
 (54,465)
Maturity of short term investments
 
 5,085
Net cash used in investing activities(92) (41) (49,469)
Cash flow from financing activities:     
Gross proceeds from issue of shares and warrants
 44,750
 
Gross proceeds from the April 2017 Global Offering  
 70,032
Transaction costs on issue of shares and warrants
 (2,910) 
Transaction costs on April 2017 Global Offering
 (636) (6,786)
Net cash generated from financing activities
 41,204
 63,246
Net (decrease) / increase in cash and cash equivalents(6,448) 35,577
 (6,919)
Cash and cash equivalents at the beginning of the year9,968
 3,524
 39,785
Effect of exchange rates on cash and cash equivalents4
 684
 (1,423)
Cash and cash equivalents at the end of the period3,524
 39,785
 31,443

The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF CHANGES IN EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
Share
Capital
 Share
Premium
 Share-based
Expenses
 Total
Accumulated
Losses
 Total
Equity
Share
Capital
 Share
Premium
 Share-based Payment
Reserve
 Total
Accumulated
Losses
 Total
Equity
£'000s £'000s £'000s £'000s £'000s£'000s £'000s £'000s £'000s £'000s
Balance at January 1, 20151,010
 26,650
 1,127
 (16,261) 12,526
Balance at January 1, 2017, as previously reported2,568
 58,526
 2,103
 (28,728) 34,469
Impact of change in accounting policy
 
 
 484
 484
Balance at January 1, 2017 (Restated)2,568
 58,526
 2,103
 (28,244) 34,953
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the year
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the year6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 2017 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Balance at January 1, 2018 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Loss for the year
 
 
 (7,495) (7,495)
 
 
 (19,901) (19,901)
Other comprehensive income for the year:                  
Exchange differences on translating foreign operations
 
 
 4
 4

 
 
 38
 38
Total comprehensive loss for the period
 
 
 (7,491) (7,491)
Total comprehensive loss for the year
 
 
 (19,863) (19,863)
New share capital issued15
 
 
 
 15
Share-based payments
 
 399
 
 399

 
 2,901
 
 2,901
Balance at December 31, 20151,010
 26,650
 1,526
 (23,752) 5,434
Balance at January 1, 20161,010
 26,650
 1,526
 (23,752) 5,434
Loss for the year
 
 
 (5,019) (5,019)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 43
 43
Total comprehensive loss for the period
 
 
 (4,976) (4,976)
New share capital issued1,556
 34,151
 
 
 35,707
Transaction costs on share capital issued
 (2,325) 
 
 (2,325)
Share options exercised during the period2
 50
 
 
 52
Share-based payments
 
 577
 
 577
Balance at December 31, 20162,568

58,526

2,103

(28,728)
34,469
Balance at January 1, 20172,568
 58,526
 2,103
 (28,728) 34,469
Balance at December 31, 2018 (Restated)5,266
 118,862

7,923

(68,633)
63,418
Balance at January 1, 20195,266
 118,862
 7,923
 (68,633) 63,418
Impact of change in accounting policy
 
 
 (20) (20)
Adjusted Balance at January 1, 20195,266
 118,862
 7,923
 (68,653) 63,398
Loss for the year
 
 
 (20,497) (20,497)
 
 
 (31,941) (31,941)
Other comprehensive loss for the year:                  
Exchange differences on translating foreign operations
 
 
 (29) (29)
 
 
 (33) (33)
Total comprehensive loss for the period
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the period6
 141
 
 
 147
Total comprehensive loss for the year
 
 
 (31,974) (31,974)
Share-based payments
 
 2,919
 
 2,919

 
 2,441
 
 2,441
Balance at December 31, 20175,251

118,862

5,022

(49,254)
79,881
Balance at December 31, 20195,266

118,862

10,364

(100,627)
33,865
The currency translation reserve for 2015, 20162019, 2018, and 2017, is not considered material and as such is not presented in a separate reserve but is included in the total accumulated losses reserve.
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTS OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2019, 2018 AND 2017
 Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year ended December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(39,206) (24,133) (25,203)
Finance income(2,351) (2,783) (7,018)
Finance expense474
 1,325
 2,465
Share-based payment charge2,441
 2,901
 2,919
Increase in prepayments and other receivables(484) (640) (161)
Increase in trade and other payables449
 531
 5,363
Depreciation of property, plant, equipment and right of use asset398
 8
 7
Unrealised FX gains/ losses(8) 
 
Amortization of intangible assets106
 90
 116
Cash used in operating activities(38,181) (22,701) (21,512)
Cash inflow from taxation4,361
 4,590
 816
Net cash used in operating activities(33,820) (18,111) (20,696)
Cash flow from investing activities:     
Interest received887
 883
 128
Purchase of plant and equipment(38) (13) (9)
Payment for patents and computer software(244) (255) (208)
Purchase of short term investments(7,940) (59,700) (54,465)
Maturity of short term investments45,134
 64,366
 5,085
Net cash generated from / (used in) investing activities37,799
 5,281
 (49,469)
Cash flow used in financing activities:     
Gross proceeds from the April 2017 Global Offering
 
 70,032
Transaction costs on April 2017 Global Offering
 
 (6,786)
Repayment of finance lease liabilities(426) 
 
Net cash (used in) / generated from financing activities(426) 
 63,246
Net increase / (decrease) in cash and cash equivalents3,553
 (12,830) (6,919)
Cash and cash equivalents at the beginning of the year19,784
 31,443
 39,785
Effect of exchange rates on cash and cash equivalents(403) 1,171
 (1,423)
Cash and cash equivalents at the end of the year22,934
 19,784
 31,443



123

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019



1. General information
Verona Pharma plc and its subsidiaries (the "Company") are a clinical-stage biopharmaceutical group focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.
The Company is a public limited company, which is dual listed on the Alternative Investment MarketAIM, a market of the London Stock Exchange, and on April 27, 2017, American Depositary Shares began trading onThe Nasdaq Global Market.Market ("Nasdaq"). The company is incorporated and domiciled in the United Kingdom. The address of the registered office is 1 Central Square, Cardiff, CF10 1FS, United Kingdom.
The Company has two subsidiaries, Verona Pharma Inc. and Rhinopharma Limited ("Rhinopharma"), both of which are wholly owned.
On February 10, 2017 theThe Company effected a 50-for-1 consolidation oflisted its shares. All references to ordinary shares, options and warrants, as well as share, per share and related information in these consolidated financial statements have been adjusted to reflect the consolidation as if it had occurred at the beginning of the earliest period presented.

On April 26, 2017, the Company announced the closing of its global offering of an aggregate of 47,399,001 new ordinary shares, consisting of the initial public offering in the United States of 5,768,000 American Depositary Shares (“ADSs”("ADS") at a price of $13.50 per ADS and on Nasdaq in April 2017 ("the private placement in Europe of 1,255,001 ordinary shares at a price of £1.32 per ordinary share, for gross proceeds of $80 million (the “Global Offering”2017 Global Offering"). Each ADS offered represents eight ordinary shares of the Company. The ordinary shares offered were allotted and issued in a concurrent private placement in Europe and other countries outside of the United States and Canada.
In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in a shareholder private placement separate from the Global Offering (the “Shareholder Private Placement”), contingent on and concurrent with the Global Offering and generating additional gross proceeds of £0.3 million.
On May 15 and May 23, 2017, pursuant to the Global Offering, the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS, for additional gross proceeds of $9.9 million bringing the total gross proceeds in the Global Offering to $89.9 million (£70.0 million). Including the Shareholder Private Placement, the total gross proceeds of the capital raising amounted to $90.3 million (£70.3 million).
The ADSs began tradingtrade on theThe Nasdaq Global Market under the ticker symbol “VRNA” on April 27, 2017.and Verona Pharma’s ordinary shares continue to trade on the AIM market of the London Stock Exchange (“AIM”) under the symbol “VRP”.


F-7124

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

2. Accounting policies
A summary of the principal accounting policies, all of which have been applied consistently throughout the year, is set out below.
2.1  Basis of preparation
The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRSs") as issued by the International Accounting Standards Board and IFRS Interpretations Committee and with the Companies Act 2006 applicable to companies reporting under IFRS.
The consolidated financial statements have been prepared under the historical cost convention, with the exception of derivative financial instruments which have been measured at fair value.
The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires management to exercise its judgementjudgment in the process of applying the Company's accounting policies. The areas involving a higher degree of judgementjudgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in note 4.
Going concern
DuringThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the yearyears ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had aan accumulated loss of £20.5 million (2016: £5.0 million).£100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of December 31, 2017,the issuance date of the annual consolidated financial statements, the Company had net assets of £79.9 million (2016: £34.5 million) of which £80.3 million (2016: £39.8 million) wasexpects that its cash and cash equivalents, would be sufficient to fund its operating expenses and short term investments.
The operation of the Company is currently being financed from funds that the Company raised from share placings. On May 2nd, 2017, the company raised $89.9 million (£70 million) from the initial public offering in the United States. On July 29, 2016, the Company raised gross proceeds of £44.7 million from a placing, subscription and open offer (the "July 2016 Placement"). These funds are expected to be used primarily to support the development of RPL554 in chronic obstructive pulmonary disease ("COPD"), other chronic respiratory diseases as well as corporate and general administrative expenditures.
The Directors believe that the Company has sufficient funds to complete the current clinical trials, to cover corporate and general administration costs and for it to comply with all commitmentscapital expenditure requirements for at least 12 months from the endissuance date of these annual consolidated financial statements. Accordingly, the reporting periodconsolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and accordingly, are satisfiedwhich contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the going concern basis remains appropriate forCompany will be successful in securing additional finance on acceptable terms, or at all, and should the preparationCompany be unable to raise sufficient additional funds it will be required to defer the initiation of these consolidatedPhase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial statements.condition.
Business combination
The Company applies the acquisition method to account for business combinations. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred to the former owners of the acquiree and the equity interests issued by the Company. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement and the fair value of any pre-existing equity interest in the subsidiary.arrangement. The excess of the cost of acquisition over the fair value of the Company's share of the identifiable net assets acquired is recorded as goodwill. Goodwill arising on acquisitions is capitalized and is subject to an impairment review, both annually and when there are indications that the carrying value may not be recoverable.
Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. Acquisition-related costs are expensed as incurred and included in administrative expenses.

125

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Basis of consolidation
These consolidated financial statements include the accountsfinancial statements of Verona Pharma plc and its wholly owned subsidiaries Verona Pharma, Inc. and Rhinopharma. The acquisition method of accounting was used to account for the acquisition of Rhinopharma.

F-8

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Inter-company transactions, balances and unrealized gains on transactions between group companies are eliminated.
Verona Pharma Inc. and Rhinopharma adopt the same accounting policies as the Company.
2.2  Foreign currency translation
Items included in the Company's consolidated financial statements are measured using the currency of the primary economic environment in which the Entityentity operates ("the functional currency"). The consolidated financial statements are presented in pounds sterling ("£"), which is the functional and presentational currency of the Company and the presentational currency of the Company.
Transactions in foreign currencies are recorded using the rate of exchange ruling at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are translated using the rate of exchange ruling at the balance sheet date and the gains or losses on translation are included in the Consolidated Statement of Comprehensive Income. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the exchange rates at the dates of the original transactions. Non-monetary items measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined.
The assets and liabilities of foreign operations are translated into pounds sterling at the rate of exchange ruling at the balance sheet date. Income and expenses are translated at weighted average exchange rates for the period. The exchange differences arising on translation for consolidation are recognized in Other Comprehensive Income.
2.3  Cash and cash equivalents
Cash and cash equivalents includes cash in hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less.
2.4  Deferred taxation
Deferred tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred tax is determined using tax rates (and laws)and laws that have been enacted or substantially enacted by the balance sheet date and expected to apply when the related deferred tax is realized or the deferred liability is settled.
Deferred tax assets are recognized to the extent that it is probable that the future taxable profit will be available against which the temporary differences can be utilized.
2.5  Research and development costs
Capitalization of expenditure on product development commences from the point at which technical feasibility and commercial viability of the product can be demonstrated and the Company is satisfied that it is probable that future economic benefits will result from the product once completed. No such costs have been capitalized to date, given the early stage of the Company's product candidate development.date.
Expenditure on research and development activities that do not meet the above criteria is charged to the Consolidated Statement of Comprehensive Income as incurred.

126

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.6  Property, plant and equipment
Property, plant and equipment are stated at cost, net of depreciation and any provision for impairment. Cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is calculated so as to write off the cost less their estimated residual

F-9

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

values, on a straight-line basis over the expected useful economic lives of the assets concerned. The principal annual periods used for this purpose are:
Computer hardware3 years
Office equipment5 years
2.7  Intangible assets and goodwill
(a)Goodwill
Goodwill arises on the acquisition of subsidiaries and represents the excess of the consideration transferred over the fair value of the identifiable net assets acquired.
(b)Patents
Patent costs associated with the preparation, filing, and obtaining of patents are capitalized and amortized on a straight-line basis over the estimated useful lives of the patents of ten years.
(c)Computer software
Amortization is calculated so as to write off the cost less estimated residual values, on a straight-line basis over the expected useful economic life of two years.
(d)In-process research & development ("IPRIP R&D")
The IP R&D assetsasset acquired through a business combinations which, at the time of acquisition, havecombination, that had not reached technical feasibility, arewas initially recognized at fair value. Subsequent movements in the assumed contingent liability (see 2.12) that relate to changes in estimated cashflows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. There were no changes in estimated cashflows or probabilities of success in the years ended 31 December, 2019, or 2018.
This is a change in accounting policy as prior to January 1, 2019, movements in the assumed contingent liability were taken to the Statement of Comprehensive Income (see note 2.17). As a result of the change in accounting policy £484 thousand was restated from Accumulated Loss to the IP R&D asset.
The amounts are capitalized and are not amortized but areasset is subject to impairment testing until completion, abandonment of the projectsproject or when the research findings are commercialized through a revenue generating project. The Company determines whether intangible assets (including goodwill) are impaired on an annual basis and this requires the estimationor when there is an indication of the higher of fair value less costs of disposal and value in use. Upon successful completion or commercialization of the relevant project, IP R&D will be reclassified to developed technology. The Company will make a determination as to the then useful life of the developed technology, generally determined by the period in which the substantial majority of the cash flows are expected to be generated, and begin amortization. In case of abandonment the asset will be impaired.
2.8  Impairment of intangible assets, goodwill and non-financial assets
Goodwill and intangible assets that have an indefinite useful life and intangible assets not ready to use are not subject to amortization. These assets are tested annually for impairment or more frequently if impairment indicators exist. Non-financial assets that are subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is recognized for the amount by which the asset's carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset's fair value (less costs of disposal) and value in use.
For the purpose of assessing impairment, assets are grouped at the lowest levels for which there are separately identifiable cash flows, which are largely independent of the cash flows from other assets or group of assets (cash generating units "CGUs").
Goodwill is allocated to CGUs for the purpose of impairment testing. The allocation is made to those CGUs or groups of CGUs that are expected to benefit from the business combination in which the goodwill arose. The units or group of units are identified at the lowest level at which goodwill is monitored for internal management purposes, being the operating segments.
The Company is a single cash generating unit. Goodwill that arose on the acquisition of Rhinopharma has been thus allocated to this single CGU. IP R&D is tested for impairment at this level as well, since it is the lowest level at which independent cash flows can be identified.impairment.

F-10127

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)

Non-financial2.8  Impairment of intangible assets, othergoodwill and non-financial assets
The Company holds intangible assets relating to acquired IP R&D, patent costs and goodwill. Goodwill and intangible assets are tested annually for impairment or if there is an indication of impairment. The Company is a single cash generating unit ("CGU") so all intangibles are allocated to the Company as one CGU.
As at 31 December, 2019, and 2018 the Company carried out impairment reviews with reference to its market capitalization. At points during the year ended 31 December 2019, the Company's market capitalization was less than goodwill,its net assets. As a result, the Company carried out an impairment review by forecasting expected sales of ensifentrine, delivered by nebulizer for the maintenance treatment of chronic COPD, and associated costs. This cashflow forecast was then discounted to its net present value to demonstrate that have been previously impaired are reviewed for possible reversalthe value in use of the impairment at each subsequent reporting date.ensifentrine was greater than the Company's net assets. The Company was required to make various estimates and assumptions as inputs for this model including, but not limited to:
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
costs of the Company's overhead;
size and make up of a sales force;
probabilities of success; and
discount rate.

2.9  Employee Benefits
(a)Pension
(a)    Pension
The Company operates a defined contribution pension schemeschemes for UKits employees. Contributions payable for the year are charged to the Consolidated Statement of Comprehensive Income. The contributions are recognized as employee benefit expense when they are due. Differences between contributions payable in the year and contributions actually paid are shown as either accruals or prepayments in the Consolidated Statement of Financial Position. The Company has no further payment obligationliability once the contributions have been paid.
(b)Bonus plans
(b)    Bonus plans
The Company recognizes a liability and an expense for bonus plans if contractually obligated or if there is a past practice that has created a constructive obligation.liability.
2.10  Share-based payments
The Company operates a number of equity-settled, share-based compensation schemes. The fair value of share-basedshare based payments under such schemes is expensed on a straight-line basis over the vesting period, based on the Company's estimate of shares that will eventually vest.
Where equity settled transactions are entered into with third party service providers, fair value is determined by reference to the value of the services provided in lieu of payment. The expense is measured based on the services received at the date of receipt of those services and is charged to the Consolidated Statement of Comprehensive Income over the period for which the services are received and a corresponding credit is made to reserves. For other equity-settled transactions fair value is determined using the Black-Scholes model and requires several assumptions and estimates as disclosed in note 16.17.
The fair value of share-based payments under these schemes is expensed on a straight-line basis over the share based payments' vesting periods, based on the Company's estimate of shares that will eventually vest.

128

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.11  Provisions
Provisions are recognized when the Company has a present legal or constructive obligationliability as a result of past events, it is probable that an outflow of resources will be required to settle the obligation,liability, and the amount can be reliably estimated. Provisions are measured at the present value of the expenditures expected to be required to settle the obligationliability using a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the obligation.liability.
2.12  Assumed contingent obligationliability related to the business combinationscombination
On September 19,In 2006 the Company acquired Rhinopharma for a total consideration of £1.52 million payable in ordinary shares. In addition, the Companyand assumed certain contingent obligationsliabilities owed by Rhinopharma to Vernalis under anPharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. (“Ligand”). The Company refers to the assignment and license agreement (the "assumed contingent consideration") followingas the sale of IP by Vernalis to Rhinopharma. Pursuant to the agreement Vernalis (i)Ligand Agreement.
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds (the "Vernalis"Ligand Patents") and (ii) granted to the Company an exclusive, worldwide, royalty-bearing license under certain VernalisLigand know-how to develop, manufacture and commercialize products (the "Licensed Products") developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds.
The assumed contingent obligationliability comprises (a) a milestone payment on obtaining the first approval of any regulatory authority for the commercialization of a Licensed Product; (b)Product, low to mid singlemid-single digit royalties based on the future sales performance of all Licensed Products;Products and (c) a portion equal to a midtwentymid-twenty percent of any consideration received from any sub-licensees for the VernalisLigand Patents and for VernalisLigand know-how. On the date of

F-11

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

acquisition theThe liability was initially recognized at fair value of theand subsequently measured at amortized cost. The assumed contingent obligation wasliability is estimated as the expected value of the milestone payment and royalty payments and sub-license payments,payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement was thenis discounted back to its net present value applying an effective interest rate of 12%. The initial fair value of the assumed contingent obligation as of December 31, 2006 was deemed to be insignificant at the date of the acquisition, so it was not recorded.

The amount of royaltiesRoyalties payable under the agreement isare based on the future sales performance of certain products, and so the total amount payable is unlimited. The level of salesSales that may be achieved under the
agreement isare difficult to predict and subject to estimate, which is inherently uncertain.
The value of this assumed contingent obligationliability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes. The assumed contingent obligation is accounted for as a liability,
Remeasurements relating to changes in estimated cash flows and any adjustments made to the valueprobabilities of the liability will besuccess are recognized in the Consolidated Statement of Comprehensive IncomeIP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the period.

year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
2.13  Government and other grants
The Company may receive government, regional or charitable grants to support its research efforts in defined projects where these grants provide for reimbursement of approved costs incurred as defined in the respective grants. Income in respect of such grants would include contributions towards the costs of research and development. Income would be recognized when costs under each grant are incurred in accordance with the terms and conditions of the grant and the collectability of the receivable is reasonably assured. Government, regional and charitable grants relating to costs would be deferred and recognized in the Consolidated Statement of Comprehensive Income over the period necessary to match them with the costs they are intended to compensate. When the cash in relation to recognized government, regional or charitable grants is not yet received the amount is included as a receivable on the Consolidated Statement of Financial Position.
Where the grant income is directly related to the specific items of expenditure incurred, the income would be netted against such expenditure. Where the grant income is not a specific reimbursement of expenditure incurred, the Company would include such income under "Other income" in the Consolidated Statement of Comprehensive Income. Grants or investment credits may be repayable if the Company successfully commercializes a relevant program that was funded in whole or in part by the grant or investment credit within a particular timeframe. Prior to successful commercialization, the Company would not make any provision for repayment.
2.14  Financial instruments — initial recognition and subsequent measurement
The Company classifies a financial instrument, or its component parts, as a financial liability, a financial asset or an equity instrument in accordance with the substance of the contractual arrangement and the definitions of a financial liability, a financial asset and an equity instrument.
The Company evaluates the terms of the financial instrument to determine whether it contains an asset, a liability or an equity component. Such components shall be classified separately as financial assets, financial liabilities or equity instruments.
A financial instrument is any contract that gives rise to a financial asset of one entity and a financial liability or equity instrument of another entity.
(a)Financial assets, initial recognition and measurement and subsequent measurement
AllThe Company has no financial assets not recorded at fair value through profit or loss such as receivables and deposits,("FVPTL"). All assets are initially recognized initially at fair value plus transaction costs. costs and subsequently measured at amortized cost using the effective interest method.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement

Financial assets carriedliabilities are classified as measured at fair value through profitamortized cost or loss are initially recognized at fair value, and transaction costs are expensed in the income statement.FVTPL.

F-12129

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)


The measurement of financial assets depends on their classification. Financial assets suchCompany's warrants are classified as receivablesFVTPL and deposits are subsequently measured at amortized cost. The Company does not hold any financial assets at fair value throughgains and losses are recognized in profit or loss or available for sale financial assets.loss.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement
Financial liabilities are classified, at initial recognition, as financial liabilities at fair value through profit or loss, loans and borrowings, or payables, as appropriate. All
Other financial liabilities are initially recognized initially at fair value and in the case of loans and borrowings and payables, net of directly attributable transaction costs.
The measurement of financial assets and financial liabilities depends on their classification. Financial liabilities at fair value through profit or loss include financial liabilities held for trading and financial liabilities designated upon initial recognition as at fair value through profit or loss. These are subsequently measured at fair value with any gains or losses recognized in profit or loss. All other financial liabilities are measured at amortized cost using the effective interest methodmethod. Interest expense and foreign exchange gains and losses are recognized in profit or loss. Any gain or loss on derecognition is also recognized in profit or loss.
The Company's financial liabilities include trade and other payables, the Company's warrants and derivative financial instruments.the assumed contingent liability.
(c)    Derivative financial instruments
Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently re-measured at fair value at the end of each reporting date. The Company holds only one type of derivative financial instrument, the warrants, as explained in Note 2.15.2.14.
The full fair value of the derivative is classified as a non-current liability when the warrants are exercisable in more than 12 months and as a current liability when the warrants are exercisable in less than 12 months.
Changes in fair value of a derivative financial liability when related to a financing arrangement are recognized in the Consolidated Statement of Comprehensive Income within Finance incomeIncome or Finance expense. Fair value gains or losses on derivatives used for non-financing arrangements are recognized in other operating income or expense.Expense.

130

2.15  Warrants
VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.14  Derivative financial instrument - warrants
Warrants issued by the Company to investors as part of a share subscription are compound financial instruments where the warrant meets the definition of a financial liability.
The financial liability component is initially measured at fair value in the Consolidated Statement of Financial Position. Equity is measured at the residual between the subscription price for the entire instrument and the liability component. The financial liability component is remeasured depending on its classification.remeasured. Equity is not remeasured.
2.162.15  Short Term Investments
Short term investments include fixed term deposits held at banks with original maturities of more thanbetween three months but less thanand a year. They are classified as loans and receivables and are measured at amortized cost using the effective interest method.

2.172.16  Transaction costs
Qualifying transaction costs might be incurred in anticipation of an issuance of equity instruments and may cross reporting periods. The entity defers these costs on the balance sheet until the equity instrument is recognized. Deferred costs are subsequently reclassified as a deduction from equity when the equity instruments are recognized, as the costs are directly attributable to the equity transaction. If the equity instruments are not subsequently issued, the transaction costs are expensed. Any costs not directly attributable to the equity transaction are expensed.

F-13

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Transaction costs that relate to the issue of a compound financial instrument are allocated to the liability and equity components of the instrument in proportion to the allocation of proceeds. Where the liability component is held at fair value through profit or loss, the transaction costs are expensed to the Consolidated Statement of Comprehensive Income. For liabilities held at amortized cost, transaction costs are deducted from the liability and subsequently amortized. The amount of transaction costs accounted for as a deduction from equity in the period is disclosed separately in accordance with International Accounting Standard (“IAS 1.1”).
2.17  Changes in accounting policy
Accounting for the assumed contingent liability
As discussed in note 2.12, in 2006 the Company acquired Rhinopharma and assumed contingent liabilities owed to Vernalis Pharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. ("Ligand").
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to ensifentrine and related compounds and an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize products. The assumed contingent liability comprises a milestone payment on obtaining the first approval of any regulatory authority and royalties based on the future sales of ensifentrine.
The initial fair value of the assumed contingent liability was estimated as the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, an assessment of the probability of success using standard market probabilities for respiratory drug development discounted to net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.
Up to the year ended December 31, 2018, movements in the liability relating to re-measurements of cash flows or changes in the probabilities of success were taken to the Consolidated Statement of Comprehensive Income. During the year ended December 31, 2019, the Company reviewed the accounting for this item and has determined that these movements in the liability will now be recognized in the cost of the corresponding asset. The corresponding asset is the intangible IP R&D asset.

131

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

The Company believes that this change in accounting policy results in the Consolidated Financial Statements providing a more relevant and reliable view of its financial position and performance because without an adjustment to the IP R&D asset on the re-measurement of the liability, the cost of the asset would not be fairly reflected on the Consolidated Statement of Financial Position. The Consolidated Statement of Financial Position more faithfully represents the financial position of the Company if the intangible asset is adjusted by any re-measurement of the liability for changes in estimated cash flows, to give a fairer reflection of the cost of the intangible asset.
The Company has reviewed the International Financial Reporting Interpretations Committee ("IFRIC") discussion of accounting for variable payments made for the purchase of an intangible asset that is not part of a business combination that concluded that it was too broad for it to address within the confines of existing IFRS standards. As a result, practice in this area is mixed and many pharmaceutical companies follow a cost accumulation model. The Company also noted that adjusting the cost of the asset when a liability is remeasured for changes in estimated cash flows is consistent with the guidance in IFRIC 1 for decommissioning liabilities and IFRS 16 for lease liabilities.   
There were no such re-measurements of the liability in the years ended December 31, 2019, 2018 and 2017. Movements in the liability in these periods related to the unwinding of the discount and movements in exchange rates.
IAS 8 requires opening balance of each affected component of equity to be adjusted for the earliest prior period presented and the other comparative amounts disclosed for each prior period presented as if the new accounting policy had always been applied.
The impact to the Group, therefore, is the restatement of £484 thousand from Accumulated Loss to the IP R&D asset, which relates to re-measurements recorded prior to January 1, 2017. As there were no re-measurements in the years ended December 31, 2019, 2018 and 2017 the £484 thousand adjustment is the same at each reporting period.
The following table is a summary of the restatement:

Financial statement line item As reported Adjustment for the change in accounting policy As adjusted
January 1, 2017 £'000s £'000s £'000s
       
Accumulated loss 28,728
 (484) 28,244
Intangible assets - IP R&D 1,469
 484
 1,953
This adjustment also increases non-current assets, total assets and total equity by £484 thousand in each of the years presented.
Adoption of IFRS 16
IFRS 16 ‘Leases’ is effective for accounting periods beginning on or after January 1, 2019 and replaces IAS 17 ‘Leases’. It eliminates the classification of leases as either operating leases or finance leases and, instead, introduces a single lessee accounting model. The adoption of IFRS 16 resulted in the Group recognizing lease liabilities within current liabilities, and corresponding right-of-use assets.
The Group’s principal lease arrangements are for office space. The Group has adopted IFRS 16 retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings at January 1, 2019. The standard permits a choice on initial adoption, on a lease-by-lease basis, to measure the right-of-use asset at either its carrying amount as if IFRS 16 had been applied since the commencement of the lease, or an amount equal to the lease liability, adjusted for any accrued or prepaid lease payments as at the time of adoption. The Group has elected to measure the right-of-use asset at its carrying value as if IFRS 16 had been applied since the commencement of the lease, with the result of a £20 thousand reduction in opening total accumulated losses.

132

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Initial adoption resulted in the recognition of right-of-use assets of £326 thousand and lease liabilities of £316 thousand.
£'000s
Lease commitments (including prepayments) disclosed as at December 31, 2018600
Less: adjustments relating to prepaid lease payments(28)
Lease commitments as at December 31, 2018572
Discounted using the group’s incremental borrowing rate526
Less: short-term leases recognized on a straight-line basis as expense(210)
Lease liability recognized as at January 1, 2019316
In applying IFRS 16 for the first time, the group has used the following practical expedients permitted by the standard:
the use of a single discount rate of 8% to a portfolio of leases with reasonably similar characteristics;
accounting for leases with a remaining lease term of less than 12 months as at January 1, 2019, as short-term leases; and
the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease.
The Company is applying IFRS 16’s low-value and short-term exemptions. The adoption of IFRS 16 has had no impact on the Group’s net cash flows, although a presentation change has been reflected in 2019 whereby cash outflows of £426 thousand are now presented as financing, instead of operating. General and administrative costs are £123 thousand lower than if IFRS 16 not been adopted, as depreciation of the right of use asset is less than the lease costs. There is a £50 thousand increase in finance expense from the presentation of a portion of lease costs as interest costs. There is no significant impact on overall loss before tax and loss per share.
At the time of adoption it was not reasonably certain that the Company would extend the leases. However, in the period the Company determined that this was the case and agreed extensions. As a result it recognized an additional liability and right-of-use asset of £1,047 thousand.
2.18  New standards, amendments and interpretations adopted by the Company
The following amendments havestandard has been adopted by the Company for the first time for the financial year beginning on or after January 1, January, 2017. It did not materially impact the Company’s results:2019:

· Annual Improvements to IFRS Standards 2014-2016 Cycle,
· Disclosure initiative - amendments to IAS 7, and
· Recognition of Deferred Tax Assets for Unrealized Losses - Amendments to IAS 12.

IFRS 16 "Leases"
The amendments to IAS 7 require disclosure of changes in liabilities arising from financing activities, seeCompany adopted IFRS 16 on January 1, 2019, and, as a consequence, changed its accounting policies. See note 3.3.

2.17.
2.19  New standards, amendments and interpretations issued but not effective for the financial year beginning January 1, 20172019 and not early adopted
A number of newThere are no IFRS standards and amendments to standards andor interpretations have been issued but are not yet effective for annual periods beginning after January 1, 2017 (noted below), andthat would be expected to have not been adopted in preparing these consolidated financial statements.
IFRS 9 "Financial instruments" (effective for annual periods beginning on or after January 1, 2018)
IFRS 15 "Revenue from contracts with customers" (effective for annual periods beginning on or after January 1, 2018
IFRS 16 "Leases" (effective for annual periods beginning on or after January 1, 2019)
IFRS 9 will have noa material impact on the accounting or measurement of any of the financial instruments the Company currently holds.
IFRS 15 will have no impact on the financial statements of the Company as it is not currently revenue generating.
IFRS 16 is effective for accounting periods beginning on or after 1 January 2019 and will replace IAS 17 'leases'. It will eliminate the classification of leases as either operating leases or finance leases and, instead, introduce a single lessee accounting model. The adoption of IFRS 16 will result in the Company recognizing lease liabilities and corresponding 'right to use' assets for agreements that are currently classified as operating leases. See note 20 for further details on operating leases held.Group.

F-14133

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

3. Financial Instruments
3.1  Financial Risk Factors
The Company's activities have exposed it to a variety of financial risks: market risk (including currency risk and interest rate risk), credit risk, and liquidity risk. The Company's overall risk management program is focused on preservation of capital and the unpredictability of financial markets and has sought to minimize potential adverse effects on the Company's financial performance and position.
(a)Currency risk
Foreign currency risk reflects the risk that the Company's net assets will be negatively impacted due to fluctuations in exchange rates. The Company has not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
The summary quantitative datedata about the Company's exposure to currency risk is as follows. Figures are the pound sterling values of balances in each currency:

 Year Ended December 31, 2016 Year Ended December 31, 2017December 31, 2019 December 31, 2018
 USD EUR USD EURGBP USD EUR GBP USD EUR
 £'000s £'000s £'000s £'000s£'000s £'000s £'000s £'000s £'000s £'000s
Cash and cash equivalents 10,631
 242
 16,806
 301
18,517
 4,399
 18
 11,293
 8,470
 21
Short term Investments 
 
 19,718
 
6,316
 1,507
 
 19,850
 25,069
 
Trade and other payables 305
 180
 276
 403
3,226
 4,306
 728
 2,872
 4,329
 532
Sensitivity Analysis
A reasonably possible strengthening (weakening)or weakening of the Euro USor U.S. dollar or Sterling against all other currencies atpounds sterling as of December 31, December2019 and 2018 would have affected the measurement of the financial instruments denominated in a foreign currency (excluding the assumed contingent liability).
The following table shows how a movement in a currency would give rise to a profit or (loss) and affected equity and profit and loss by the amounts shown below. This analysis assumes that all other variables remain constant.a corresponding entry in equity.
Profit or loss and equityProfit or loss and equity
Strengthening WeakeningStrengthening Weakening
December 31, 2017£'000s £'000s
December 31, 2019£'000s £'000s
EUR (5% movement)35
 (35)(36) 36
USD (5% Movement)1,840
 (1,840)80
 (80)
December 31, 2016£'000s £'000s
December 31, 2018£'000s £'000s
EUR (5% movement)21
 (21)(26) 26
USD (5% Movement)547
 (547)1,461
 (1,461)
Foreign currency denominated trade payables are short term in nature (generally 30 to 45 days). The Company has a U.S. operation, the net assets of which are exposed to foreign currency translation risk.
Estimated cashflows relating to the assumed contingent liability are predominantly denominated in US dollars. In the years ended December 31, 2019, and 2018, movements in foreign exchange rates were not material and no sensitivity analysis is therefore provided.
(b)Credit risk
Credit risk reflects the risk that the Company may be unable to recover contractual receivables. As the Company is still in the development stage no policies are currently required to mitigate this risk.

F-15134

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

For banks and financial institutions, only independently rated parties with a minimum rating of "B+" are accepted. The Directors recognize that this is an area in which they may need to develop specific policies should the Company become exposed to further financial risks as the business develops.
As of December 31, 2017,2019, and December 31, 2016,2018, cash and cash equivalents and short term investments were placed at the following banks:
Cash and Cash EquivalentsYear ended December 31, 2016 
Credit
rating
 Year ended December 31, 2017 
Credit
rating
Year ended December 31, 2019 
Credit
rating
 Year ended December 31, 2018 
Credit
rating
£'000   £'000 £'000 £'000  
Banks           
Royal Bank of Scotland11,287
 A3
 16,623
 A21
 A1 150
 A1
Lloyds Bank28,447
 A1
 13,448
 Aa38,355
 Aa3 15,862
 Aa3
Standard Chartered
 
 1,242
 A1
Citibank6,529
 Aa3 3,135
 A1
Barclays1,968
 A1 449
 A2
Wells Fargo51
 Aa1
 130
 Aa1111
 Aa1 188
 Aa1
Close Brothers5,970
 Aa3 
 
Total39,785
   31,443
 22,934
 19,784
  

Short Term InvestmentsYear ended December 31, 2016Credit
rating
Year ended December 31, 2017Credit
rating
£'000£'000
Banks
Royal Bank of Scotland

15,316
A2
Lloyds Bank

11,036
Aa3
Standard Chartered

22,467
A1
Wells Fargo


Aa1
Total
48,819

Short Term InvestmentsYear ended December 31, 2019 Credit
rating
 Year ended December 31, 2018 Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland5,616
 A1 9,186
 A1
Lloyds Bank
 Aa3 1,567
 Aa3
Standard Chartered
 A1 15,450
 A1
Citibank
 Aa3 7,053
 A1
Barclays2,207
 A1 11,663
 A2
Total7,823
   44,919
  

(c)    Management of capital
The Company considers capital to be its equity reserves. At the current stage of the Company's life cycle, the Company's objective in managing its capital is to ensure funds raised meet the research and operating requirements until the next development stage of the Company's suite of projects.
The Company ensures it is meeting its objectives by reviewing its Key Performance Indicators ("KPIs") to ensure the research activities are progressing in line with expectations, costs are controlled and unused funds are placed on deposit to conserve resources and increase returns on surplus cash held.
(d)Interest rate risk
As of December 31, 2017,2019, the Company had cash deposits of £31.4£22.9 million (2016: £39.8(2018: £19.8 million) and short term investments of £48.8£7.8 million (2016: nil) (2018: £44.9 million). The rates of interest received during 20172019 ranged between 0.0% and 1.73%2.87%. A 0.25% increase in interest rates would not have a material impact on finance income.Theincome. The Company's exposure to interest rate risk, which is the risk that the interest received will fluctuate as a result of changes in market interest rates on classes of financial assets and financial liabilities, was as follows:


F-16
135

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)



December 31, 2016 December 31, 2017December 31, 2019 December 31, 2018
Floating
interest rate
 
Fixed
Interest rate
 
Floating
interest rate
 
Fixed
Interest rate
Floating
interest rate
 
Fixed
interest rate
 
Floating
interest rate
 
Fixed
interest rate
£'000s £'000s £'000s £'000s£'000s £'000s £'000s £'000s
Financial asset              
Cash deposits11,338
 28,447
 25,720
 5,723
10,006
 12,928
 15,082
 4,702
Short Term Investments
 
 
 48,819

 7,823
 
 44,919
Total11,338
 28,447
 25,720

54,542
10,006
 20,751
 15,082
 49,621

(e)Liquidity risk
The Company periodically prepares periodic working capital forecasts for the foreseeable future, allowing an assessment of the cash requirements of the Company, to manage liquidity risk. The following table provides an analysis of the Company's financial liabilities. The carrying value of all balances is equalapproximates to their fair value. The Company's maturity analysis for the derivative financial instrument from the issue of warrants is given in note 19.18.

LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
£'000s £'000s £'000s £'000s£'000s £'000s £'000s £'000s
At December 31, 2016       
At December 31, 2019       
Trade payables719
 
 
 
1,455
 
 
 
Other payables54
 
 
 
Accruals2,050
 
 
 
6,806
 
 
 
Contingent obligation
 
 
 1,807
Lease liability476
 557
 
 
Assumed contingent liability(1)

 
 
 1,807
Total2,823
 
 
 1,807
8,737
 557
 
 1,807
This table includes the undiscounted amount of the assumed contingent liability. See note 20.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2018       
Trade payables2,839
 
 
 
Other payables12
 
 
 
Accruals4,882
 
 
 
Assumed contingent liability(1)

 
 
 1,807
Total7,733
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation.liability. See note 18.
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2017       
Trade payables1,214
 
 
 
Other payables74
 
 
 
Accruals5,866
 
 
 
Contingent obligation
 
 
 1,807
Total7,154
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation. See note 18.20.


F-17136

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.2  Fair value estimation
The carrying amounts of cash and cash equivalents, receivables, accounts payable and accrued liabilities approximate to fair value due to their short-term nature. The carrying amount of the assumed contingent liability approximates to fair value as the underlying assumptions are currently similar. 
For financial instruments that are measured in the Consolidated Statement of Financial Position at fair value, IFRS 7 requires disclosure of fair value measurements by level of the following fair value measurement hierarchy:
Quoted prices (unadjusted) in active markets for identical assets or liabilities (level 1);
Inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly (level 2); and
Inputs for the asset or liability that are not based on observable market data (level 3).
For the year ended December 31, 2017,2019, and 2016,2018, fair value adjustments to financial instruments measure at fair value through profit and loss resulted in the recognition of finance income of £6.7£1.6 million in 2019 and £1.1a finance loss of £1.2 million respectively.in 2018.
The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. These valuation techniques maximize the use of observable market data where it is available and rely as little as possible on entity specific estimates. If all significant inputs required to ascertain the fair value of an instrument are observable, the instrument is included in level 2. If one or more of the significant inputs are not based on observable market data, the instrument is included in level 3.
Level 3 TotalLevel 3 Total
£'000s £'000s£'000s £'000s
At December 31, 2017   
At December 31, 2019   
Derivative financial instrument1,273
 1,273
895
 895
Total1,273
 1,273
895
 895

Movements in Level 3 items during the years ended December 31, 2016,2019, and 20172018 are as follows:
Derivative financial instrument2016 20172019 2018
£'000s £'000s£'000s £'000s
At January 1
 7,923
2,492
 1,273
Initial recognition of derivative financial instrument8,991
 
Fair value adjustments recognized in profit and loss(1,068) (6,650)(1,597) 1,219
At December 317,923
 1,273
895
 2,492

Further details relating to the derivative financial instrument are set out in notes 4 and 1918 of these financial statements.
In determining the fair value of the derivative financial instrument, the Company applied the Black Scholes model; key inputs include the share price at reporting date, estimations on timelines, volatility and risk-free rates. These assumptions and the impact of changes in these assumptions, where material, are disclosed in note 19.18.

F-18137

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.3  Change in liabilities arising from financing activities
The Company has provided a reconciliation so that changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes can be evaluated.
 December 31, 20172019
 Derivative financial instrument
 £'000s
At January 17,9232,492
Fair value adjustments - non cash(6,6501,597)
At December 311,273895

See note 1918 for information relating to the derivative financial instrument.

2019
Lease liability
£'000s
At January 1316
Capitalization of rental leases - non cash1,061
Payment of lease liability - cash(426)
At December 31951

See note 14 and note 2.17 for information relating to the capitalized leases.
4. Critical accounting estimates and judgments
The preparation of financial statements in conformity with IFRS requires the use of accounting estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Although these estimates are based on management's best knowledge of current events and actions, actual results ultimately may differ from those estimates. IFRS also requires management to exercise its judgment in the process of applying the Company's accounting policies.
The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are as follows:
(a)    Assumed contingent obligationliability
The Company has a material obligationliability for the future payment of royalties and milestones associated with contractual obligationsliabilities on RPL554, a development productensifentrine, acquired as part of the acquisition of RhinopharmaRhinopharma. The estimation of the fair valueamounts and timing of the assumed contingent obligation on acquisitionfuture cashflows requires the selectionforecast of an appropriate valuation model, consideration as to the inputs necessary for the valuation model chosen,royalties payable and the estimation of the likelihood that the regulatory approval milestone will be achieved (see notes 2.12 and estimates of the future cash flows and their timing (for further detail see note 19)20). The estimates for the assumed contingent obligationliability are based on a discounted cash flow model. Key assessments and judgmentsestimates included in the fair value calculation of deferred consideration are:
development, regulatory and marketing risks associated with progressing the product to market approval in key target territories;
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
launch of competitive products; and
discount rate and time to crystallization of contingent consideration.

In accordance with IAS 39 ("Financial Instruments Recognition and Measurement" (para AG8)), when there is a change in the expected cash flows, the assumed contingent obligation is re-measured with the change in value

F-19138

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Critical accounting estimates and judgments (continued)

launch of competitive products;
probabilities of success; and
time to crystallization of contingent consideration.
going through
When there is a change in the Consolidated Statement of Comprehensive Income. Cash flow estimates are revised when the probabilityexpected cash flows or probabilities of success, changes.the assumed contingent liability is re-measured with the change in value recognized in the IP R&D asset it relates to. This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The assumed contingent obligationliability is measured at amortized cost with the discount unwinding in the Consolidated Statement of Comprehensive Incomefinance expense throughout the year. Actual outcomes could differ significantly from the estimates made.
The Company has judged that the probabilities of success will change when it moves from one stage of clinical development to another. Management have determined that, for the purposes of assessing probabilities of success, the Company will move from Phase 2 to Phase 3 after an End of Phase 2 Meeting with the Food and Drug Administration ("FDA") in the US that provides confidence over ensifentrine's historical development program and planned Phase 3 program. A remeasurement of the liability at this time is likely to result in a significant increase in both the liability and the corresponding IP R&D asset.The Company has previously announced that it expects to meet with the FDA in the first half of 2020. The Company notes that there is no guarantee that the meeting will take place in the timeframe anticipated or that there will be a successful outcome.
Should the probabilities of success and estimates of cash flows change there will be a material increase in the assumed contingent liability and corresponding IP R&D asset. The amount will be dependent on feedback from the FDA and the probabilities of success applied. Should the Company determine that it has moved from Phase 2 to Phase 3 then the value of the liability could increase by between £15 million and £30 million; the increase in the value of the liability will give rise to an approximately equivalent increase in the value of the IP R&D asset, as described further in Note 2.7.
The value of the assumed contingent obligationliability as of December 31, 2017 amounts to £0.9 million. (2016: £0.8 million). The increase in value of the assumed contingent obligation during 20172019 amounted to £0.1 million (2016: £0.2£1.1 million. (2018: £1.0 million) and the movement relates to unwinding the discount on the liability and retranslating for changes in US$ exchange rates. The increase was recorded in finance expense. There was no change in the year to the probability of success and consequently cash flow estimates were not revised.
The discount percentage applied is 12%.
(b)    Valuation of the Derivative Financial Liability
In July 2016, warrants
Pursuant to the July 2016 Placement, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant. The warrants entitle the investors to subscribe for in aggregate a maximum of 12,446,37012,401,262 ordinary shares.
In accordance with IAS 32 and Companythe Company’s accounting policy, as disclosed in note 2.15,2.14, the Company classified the warrants as a derivative financial liability to be presented on the Company's Consolidated Statement of Financial Position.
The fair value of these warrants is determined by applying the Black-Scholes model. Assumptions are made on inputs such as time to maturity, the share price,term, volatility and risk free rate in order to determine the fair value per warrant. For further details see note 19.
Transaction costs arising on the issues of these shares and warrants are allocated to the equity and warrant liability components in proportion to the allocation of proceeds.
(c)    Recognition of research and development expenditure
The Company incurs research and development expenditure from third parties. The Company recognizes this expenditure in line with the management’s best estimation of the stage of completion of each research and development project. This includes the calculation of accrued costs at each period end to account for expenditure that has been incurred. This requires management to estimate full costs to complete for each project and also to estimate its current stage of completion. The costs related to the Clinical Research Organization expenses in the year was £18.5 million. The related accruals and prepayments were £4.6 million and £0.5 million respectively.
(d)    Transaction costs related the Global Offering
The Company incurred various transaction costs relating to the Global Offering, including commissions, professional advisor fees, financial advice, listing fees and other costs. When management judged them to be incremental costs directly attributable to the transaction they were accounted for as a deduction from equity. Otherwise the costs were expensed to the consolidated income statement as incurred.

18.
5. Earnings per share
Basic loss per ordinary share of 23.4p (2016: 15.0p30.3p (2018: 18.9p and 2015: 37.1p)2017: 23.4p) for the Company is calculated by dividing the loss for the year ended December 31, 20172019 by the weighted average number of ordinary shares in issue of 87,748,031105,326,638 as of December 31, 2017 (2016: 33,499,4132019 (2018: 105,110,504 and 2015: 20,198,469)2017: 87,748,031). Potential ordinary shares are not treated as dilutive as the entity is loss making and such shares would be anti-dilutive.


F-20

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


6. Segmental reporting
The Company’s activities are covered by one operating and reporting segment: Drug Development. There have been no changes to management’s assessment of the operating and reporting segment of the Company during the period.year.
All non-current assets are based in the United Kingdom.
7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging:     
Research and development costs:     
Employee benefits (note 8)1,322
 2,037
 3,435
Amortization of patents (note 12)43
 51
 111
Legal, professional consulting and listing fees
 
 331
Loss on disposal of patents136
 
 
Other research and development expenses5,769
 2,434
 19,840
Total research and development costs7,270
 4,522
 23,717
General and administrative costs:   
  
Employee benefits (note 8)625
 865
 2,857
Legal, professional consulting and listing fees608
 884
 2,045
Amortization of computer software (note 12)
 1
 5
Loss on disposal of property, plant and equipment (note 13)
 3
 
Depreciation of property, plant and equipment (note 13)10
 10
 7
Operating lease charge — land and buildings157
 169
 294
Loss on variations in foreign exchange rate21
 139
 36
Other general and administrative expenses285
 427
 795
Total general and administrative costs1,706
 2,498
 6,039
Operating loss8,976
 7,020
 29,756




F-21139

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

8. Directors' emoluments and staff costs7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and Development5
 5
 7
General and Administrative3
 2
 5
Total8
 7
 12
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits722
 951
 897
Social security costs132
 118
 103
Incremental payment for additional services89
 44
 
Other pension costs38
 19
 17
Total directors' emoluments981
 1,132
 1,017
Share-based payment charge232
 257
 1,037
Directors' emoluments including share-based payment charge1,213
 1,389
 2,054

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries540
 1,027
 2,136
Social security costs42
 98
 182
Incremental payment for additional services
 58
 
Share-based payment charge137
 319
 1,882
Other pension costs15
 11
 38
Total other staff costs734
 1,513
 4,238
The Company operates a defined contribution pension scheme for U.K. employees and executive directors. The total pension cost during the year ended December 31, 2017 was £55 thousand (2016: £30 thousand and 2015: £53 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2017(2016 and 2015: £nil).

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging / (crediting):     
Research and development costs:     
Employee benefits (note 8)4,688
 3,360
 3,435
Amortization of patents (note 12)102
 85
 111
Legal, professional consulting and listing fees537
 161
 331
Other research and development expenses28,149
 15,688
 19,840
Total research and development costs33,476
 19,294
 23,717
General and administrative costs: 
  
  
Employee benefits (note 8)3,093
 3,240
 2,857
Legal, professional consulting and listing fees2,155
 1,296
 2,045
Amortization of computer software (note 12)4
 5
 5
Depreciation of property, plant and equipment (note 13)16
 8
 7
Depreciation of right-of-use assets (note 14)382
 
 
Operating lease charge — land and buildings
 384
 294
Loss / (gain) on variations in foreign exchange rate345
 (9) 36
Other general and administrative expenses1,612
 1,373
 795
Total general and administrative costs7,607
 6,297
 6,039
Operating loss41,083
 25,591
 29,756




F-22140

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
Finance income and expense (continued)2019

9. Finance income8. Directors' emoluments and expensestaff costs
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances45
 86
 345
Foreign exchange gain on translating foreign currency denominated bank balances
 687
 
Fair value adjustment on derivative financial instruments (note 19)
 1,068
 6,650
Other Income
 
 23
Total finance income45
 1,841
 7,018
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and development13
 7
 7
General and administrative9
 7
 5
Total22
 14
 12
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits850
 830
 897
Social security costs112
 94
 103
Incremental payment for additional services26
 26
 
Other pension costs10
 10
 17
Total directors' emoluments998
 960
 1,017
Share-based payment charge925
 1,337
 1,037
Directors' emoluments including share-based payment charge1,923
 2,297
 2,054
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate executive officers costs:     
Wages and salaries1,150
 857
 864
Social security costs98
 83
 81
Share-based payment charge751
 769
 1,332
Other pension costs21
 19
 17
Total executive officers costs2,020
 1,728
 2,294
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries2,788
 1,622
 1,272
Social security costs265
 150
 101
Share-based payment charge765
 795
 550
Other pension costs46
 34
 21
Total other staff costs3,864
 2,601
 1,944
The Company considers key management personnel to comprise directors and executive officers.
The Company operates defined contribution pension schemes for its employees and executive director. The total pension cost during the year ended December 31, 2019 was £77 thousand (2018: £63 thousand and 2017: £55 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2019 (2018 and 2017: £nil).

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Transaction costs allocated to the issue of warrants (note 19)
 586
 
Foreign exchange loss on translating foreign currency denominated balances
 
 2,392
Remeasurement of assumed contingent arrangement (note 18)10
 122
 
Unwinding of discount factor and foreign exchange movements related to the assumed contingent arrangement (note 18)63
 86
 73
Total finance expense73
 794
 2,465

F-23141

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Taxation (continued)
9. Finance income and expense
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances754
 861
 345
Foreign exchange gain on translating foreign currency denominated balances
 1,922
 
Fair value adjustment on derivative financial instruments (note 18)1,597
 
 6,650
Other Income
 
 23
Total finance income2,351
 2,783
 7,018

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Fair value adjustment on derivative financial instruments (note 18)
 1,219
 
Interest on discounted lease liability50
 
 
Foreign exchange loss on translating foreign currency denominated balances305
 
 2,392
Unwinding of discount factor related to the assumed contingent arrangement (note 20)119
 106
 73
Total finance expense474
 1,325
 2,465

142

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

10. Taxation
Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
£'000s £'000s £'000s£'000s £'000s £'000s
Analysis of tax credit for the year          
Current tax:          
UK tax credit(1,520) (1,067) (5,006)
US tax charge
 129
 306
U.K. tax credit(7,250) (4,290) (5,006)
U.S. tax charge56
 30
 306
Adjustment in respect of prior periods11
 (16) (6)(71) 28
 (6)
Total tax credit(1,509) (954) (4,706)(7,265) (4,232) (4,706)
Factors affecting the tax charge for the year     
Loss on ordinary activities(9,002) (5,973) (25,203)
Multiplied by standard rate of corporation tax of 19.25% (2016: 20% and 2015: 20.25%)(1,823) (1,195) (4,852)
     
The difference between the total tax shown above and the amount calculated by applying the standard rate of tax to the loss before tax is as follows:The difference between the total tax shown above and the amount calculated by applying the standard rate of tax to the loss before tax is as follows:
Factors affecting the tax credit for the year     
Loss on ordinary activities before taxation(39,206) (24,133) (25,203)
     
Multiplied by standard rate of corporation tax of 19% (2018: 19% and 2017: 19.25%)(7,449) (4,585) (4,852)
Effects of:          
Non-deductible expenses114
 292
 675
515
 540
 675
Fair value adjustment on derivative financial instruments
 (214) (1,280)(303) 232
 (1,280)
Research and development incentive(600) (427) (2,116)(3,119) (1,846) (2,116)
Temporary differences not recognized(1) (4) (2)(6) (3) (2)
Difference in overseas tax rates
 56
 136
16
 8
 136
Tax losses carried forward not recognized790
 554
 2,739
3,152
 1,394
 2,739
Adjustment in respect of prior periods11
 (16) (6)(71) 28
 (6)
Total tax credit(1,509) (954) (4,706)(7,265) (4,232) (4,706)
UKU.K. corporation tax is charged at 19.25% (2016: 20.00%19% (2018: 19.00% and 2015: 20.25%2017: 19.25%) and U.S. federal and state tax at 35% (201627.6% (2018: 27.6% and 2015:2017: 35%).
The following tables represent deferred tax balances recognized in the Consolidated Statement of Financial Position. There were no movements in either the deferred tax asset or the deferred tax liability.
Year ended December 31, 2016 Year ended December 31, 2017As at December 31, 2019 As at December 31, 2018
£'000s £'000s£'000s £'000s
Deferred tax assets250
 250
332
 250
Deferred tax liabilities(250) (250)(332) (250)
Net balances
 

 
The deferred tax liability relates to the difference between the accounting and tax bases of the IP R&D intangible asset. A deferred tax asset relating to UK tax losses has been recognized and offset against the liability.
Factors that may affect future tax charges
The Company has UKU.K. tax losses available for offset against future profits in the UK.United Kingdom. However an additional deferred tax asset has not been recognized in respect of such items due to uncertainty of future profit streams. As of December 31, 2017,2019, the unrecognized deferred tax asset at 17% is estimated to be £5.43£9.27 million (2016: £3.15(2018: £6.65 million at 17%).

F-24143

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

11. Goodwill
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Goodwill at January 1 and December 31441
 441
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Goodwill at January 1 and December 31441
 441

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in connection with the acquisition of Rhinopharma in September 2006. Goodwill is not amortized, but is tested annually for impairment. Annual
The Company has one CGU so goodwill is tested for impairment together with its intangible assets. It was tested with reference to the Company's market capitalization as of December 31, 2019, the date of testing is performed by comparing the expected recoverable amountof IP R&D and goodwill impairment. The market capitalization of the CGUCompany was approximately £65.3 million as of December 31, 2019, (2018: 92.2 million) compared to the carrying amountCompany's net assets of £33.9 million (2018: £63.4 million). Therefore, no impairment was required.
The Company notes that after the reduction in its share price since December 31, 2018, and before the increase by December 31, 2019, at various points in the three months to March 31, 2019, the market value of the CGUCompany was less than its net book value. The Company therefore carried out an impairment review as at March 31, 2019. From market research the Company assessed, among other inputs, potential patient numbers from likely physician prescribing patterns, price points, the time from possible launch to which goodwill has been allocatedpeak sales, script rejection, attrition rates and probability of success. The Company also carried out a sensitivity analysis on key assumptions and assessed that a reasonable change in these assumptions would not lead to the value in use falling below net book value. Consequently, management determined that the Company's value in use exceeded the carrying amountvalue of the CGU. See note 2.8Company's assets and that no impairment was required.

At various other points in the year ended December 31, 2019, the market value of the Company was less than its net book value. Consequently, management re-performed the impairment review quarterly, and identified no changes to market conditions, the consolidated financial statements.
12. Intangiblecompetitive landscape, market research insights or other factors that would change its conclusions. As a result, management determined that the Company's value in use exceeded the carrying value of the Company's assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20161,469
 25
 482
 1,976
Additions
 5
 110
 115
Disposals
 (24) 
 (24)
At December 31, 20161,469
 6
 592
 2,067
Accumulated amortization       
At January 1, 2016
 24
 138
 162
Charge for year
 1
 51
 52
Disposals
 (24) 
 (24)
At December 31, 2016
 1
 189
 190
Net book value       
At December 31, 20161,469

5

403

1,877
and that no impairment was required at those dates.

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20171,469
 6
 592
 2,067
Additions
 5
 203
 208
Disposals
 
 (68) (68)
At December 31, 20171,469
 11
 727
 2,207
Accumulated amortization       
At January 1, 2017
 1
 189
 190
Charge for year
 5
 111
 116
Disposals
 
 (68) (68)
At December 31, 2017
 6
 232
 238
Net book value       
At December 31, 20171,469

5

495

1,969

F-25144

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Intangible assets (continued)

12. Intangible assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 2018 (Restated)1,953
 11
 727
 2,691
Additions
 4
 251
 255
Disposals
 
 (6) (6)
At December 31, 2018 (Restated)1,953
 15
 972
 2,940
Accumulated amortization       
At January 1, 2018
 6
 232
 238
Charge for year
 5
 85
 90
Disposals
 
 (6) (6)
At December 31, 2018
 11
 311
 322
Net book value       
At December 31, 2018 (Restated)1,953

4

661

2,618

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20191,953
 15
 972
 2,940
Additions
 3
 242
 245
At December 31, 20191,953
 18
 1,214
 3,185
Accumulated amortization       
At January 1, 2019
 11
 311
 322
Charge for year
 4
 102
 106
At December 31, 2019
 15
 413
 428
Net book value       
At December 31, 20191,953

3

801

2,757
Intangible assets comprise patents, computer software and an IP R&D asset that arose on the acquisition of Rhinopharma and investment in patents to protect RPL554.ensifentrine.
The IP R&D asset acquired through the business combination was initially recognized at fair value. Subsequent movements in the assumed contingent liability that relate to changes in estimated cash flows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. This is currentlya change in accounting policy (see note 2.17). The asset is not amortized and is reviewedtested annually for impairment on an annual basis or where there is an indication that the assets might be impaired until the asset is brought into use.impairment.
Patents are amortized over a period of ten years and are regularly reviewedtested annually for impairment.
Intangible assets are tested for impairment to ensure the carrying amount exceeds the recoverable amount in accordance with note 2.8.
Recognizing thatgoodwill, as the Company is still in its pre-revenue phase and thathas only one CGU. See note 11 for information about the research projects are not yet ready for commercial use, the Company assesses the recoverable amount of the CGU containing the IP R&D with reference to the Company's market capitalization as of December 31, 2017, the date of testing of goodwill impairment. The market capitalization of the Company was approximately £109.7 million as of December 31, 2017, (2016: £80.0 million) compared to the Company's net assets of £79.9 million (2016: £34.5 million). Therefore, no impairment was recognized.review.

F-26145

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

13. Property, plant and equipment
 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201643
 36
 79
Additions13
 
 13
Disposals(39) (36) (75)
At December 31, 201617
 
 17
Accumulated depreciation     
At January 1, 201639
 27
 66
Charge for the year3
 7
 10
Disposals(39) (34) (73)
At December 31, 20163
 
 3
Net book value     
At December 31, 201614



14
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201826
 26
Additions13
 13
At December 31, 201839
 39
Accumulated depreciation   
At January 1, 201810
 10
Charge for the year8
 8
At December 31, 201818
 18
Net book value   
At December 31, 201821

21


Computer
hardware
 
Office
equipment
 Total
Computer
hardware
 Total
£'000s £'000s £'000s£'000s £'000s
Cost        
At January 1, 201717
 
 17
At January 1, 201939
 39
Additions9
 
 9
38
 38
At December 31, 201726
 
 26
At December 31, 201977
 77
Accumulated depreciation        
At January 1, 20173
 
 3
At January 1, 201918
 18
Charge for the year7
 
 7
16
 16
At December 31, 201710
 
 10
At December 31, 201934
 34
Net book value        
At December 31, 201716



16
At December 31, 201943

43

F-27146

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

14. Right-of-use assets - property leases
The right-of-use asset relates to rented office space in London and New York where the Company generally enters in to leases for terms of less than three years. Before the adoption of IFRS 16 these leases were classified as operating leases.

The Consolidated Statement of Financial Position shows the following amounts relating to leases:

 Year ended December 31, 2019 As of January 1, 2019*
 £'000s £'000s
Right-of-use assets   
Right-of-use assets971
 326
 971
 326
    
Lease liabilities   
Current(460) (316)
Non Current(491) 
 (951) (316)

Additions to the right-of-use assets were £1,047,000 and were recognized when the Company was reasonably certain to extend the leases. The additions related to both of the Company's office locations, both of which agreements have similar terms and conditions.
To calculate the value of the lease liabilities the Company applied a discount rate of 8%.
The leases end in 2021 and 2022 and include options to extend them. The Company has determined it is not yet reasonably certain to operate the option to extend the leases and so has recognized lease payments only to these points in its calculation of the lease liabilities.
The right-of-use lease assets are depreciated over the term of the leases.
The Consolidated Statement of Comprehensive Income includes the following amounts relating to leases:

Year ended December 31, 2019Year ended December 31, 2018
£'000s£'000s
Depreciation charge of right-of-use assets
Right-of-use assets(382)
(382)
Interest expense (including finance cost)50

Expense relating to short-term leases (included in general and administrative expenses)78


The total cash outflow for leases in 2019 was £492,000.

147

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

15. Prepayments and other receivables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Prepayments1,361
 1,138
Deferred IPO costs1,527
 
Other receivables71
 672
Total prepayments and other receivables2,959
 1,810
Deferred IPO costs related to the Global Offering. These costs were offset against share premium in 2017 when the Global Offering was completed.
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Prepayments1,309
 1,362
Other receivables1,461
 1,101
Total prepayments and other receivables2,770
 2,463
The prepayments balance includes prepayments for insurance and clinical activities.
There are no impaired assets within prepayments and other receivables.
15.16. Share Capital
On February 8, 2017, the board of the Company approved a share consolidation where every 50 existing ordinary shares of £0.001 were consolidated into one ordinary share of £0.05. The movements in the Company's share capital are summarized below:
Date Description 
Number of
shares
 
Share Capital
amounts in
 £'000
January 1, 2016 
 20,198,469
 1,010
July 29, 2016 Issuance of shares 31,115,926
 1,556
September 12, 2016 Exercise of options 3,334
 
October 24, 2016 Exercise of options 3,334
 
December 28, 2016 Exercise of options 40,000
 2
As at December 31, 2016   51,361,063
 2,568
May 2, 2017 Issuance of shares 47,653,100
 2,383
May 18, 2017 Issuance of shares 5,539,080
 277
May 26, 2017 Issuance of shares 330,824
 17
September 13, 2017 Exercise of options 133,333
 6
December 31, 2017   105,017,400
 5,251

Date Description 
Number of
shares
 
Share Capital
amounts in £'000s
 
January 1, 2018   105,017,401
 5,251
August 9, 2018 Vesting of RSUs 58,112
 3
September 20, 2018 Vesting of RSUs 251,125
 12
As at December 31, 2018   105,326,638
 5,266
As at December 31, 2019   105,326,638
 5,266
The total number of authorized ordinary shares, with a nominal value of £0.05 each, is 200,000,000 (share capital of £10,000,000). All 105,017,400105,326,638 ordinary shares at December 31, 20172019 are allotted, unrestricted, called up and fully paid. All issued shares rank pari passu.
On April 26, 2017,During 2018, the Company announced the closing of its Global Offering of an aggregate of 47,399,001 newissued 309,237 ordinary shares comprising 5,768,000 American Depositary Shares (“ADSs”) at a priceupon vesting of $13.50 per ADS and 1,255,001 ordinary shares at a price of £1.32 per ordinary share. During May 2017 the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS. The total gross proceeds in the Global Offering amounted to $89.9 million (£70.0 million).employee restricted share units.



F-28

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Share Capital (continued)

In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in the Shareholder Private Placement, contingent on and concurrent with the Global Offering and generating gross proceeds of £0.3m.
Where there is a time and foreign exchange difference between proceeds from a share issue becoming due and being received, the movement is taken to Finance income or Finance expense as appropriate. In respect of the Global Offering and Shareholder Private Placement, the Company recorded a finance expense of £439 thousand arising from movements in exchange rates on funds receivable, offset by a saving on commission payable of £31 thousand, for a net finance expense of £408 thousand.
On September 13, 2017, the company issued 133,333 new shares upon exercise of share options at 110p per share, resulting in proceeds of £147 thousand to the Company.
On July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant (see note 19).
During 2016, the Company issued 46,666 ordinary shares upon exercise of employee share options.
As at December 31, 2017, the number of ordinary shares in issue was 105,017,400.  All new ordinary shares rank pari passu with existing ordinary shares.

F-29148

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

16.17. Share-based payments charge
The Company operates various share based payment incentive schemes for its staff.
In accordance with IFRS 2 "Share Based Payments," the cost of equity-settled transactions is measured by reference to their fair value at the date at which they are granted. Where equity-settled transactions were entered into with third party service providers, fair value is determined by reference to the value of the services provided. For other equity-settled transactions fair value is determined using the Black-Scholes model. The cost of equity-settled transactions is recognized over the period until the award vests. No expense is recognized for awards that do not ultimately vest. At each reporting date, the cumulative expense recognized for equity-based transactions reflects the extent to which the vesting period has expired and the number of awards that, in the opinion of the Directors at that date, will ultimately vest.
The costs of equity-settled share-based payments to employees are recognized in the Statement of Comprehensive Income, together with a corresponding increase in equity during the vesting period. During the twelve months ended December 31, 2017,2019, the Company recognized a share-based payment expense of £2.92£2.44 million (2016: £0.58 million ).(2018: £2.90 million). The charge is included within both general and administrative costs as well as in research and development costs and represents the current year's allocation of the expense for relevant share options.
The Company grants share options underoperates an Unapproved Share Option Scheme (the "Unapproved Scheme"). Under the Unapproved Scheme,under which options are granted to employees, directors and consultants to acquire shares atwere issued before 31 December 2016. The Company also operates a price to be determined by the Directors. In general, options granted prior to December 31, 2016 were granted at a premium to the share price at the date of grant and vested over a period of three years from the date of grant, one third vesting on the first anniversary of grant, a further third vesting on the second anniversary of grant and the remainder vesting on the third anniversary of grant.
Options granted since January 1, 2017 generally vest over three or four years from the date of the grant using two different methods. The first method is one third vesting over one year, the second third vesting over two years and the final third vesting over three years. The second method is one quarter vesting over one year, the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years. The vesting period is defined as the period between the date of grant and the date when the options become exercisable. The options are exercisable during a period ending ten years after the date of grant.
Options are also issued to advisors under the Unapproved Scheme. Such options generally vest immediately and are exercisable between one and two years after grant.
In 2016 the Company issued options under its tax efficient EMI Option Scheme (the "EMI Scheme"). Under the EMI Scheme,under which options were grantedissued before 31 December 2016. In 2017 the Company commenced the 2017 Incentive Award Plan under which the Company grants share options and Restricted Stock Units ("RSUs") to employees and directors whodirectors.
Since 2017 options are contracted to workissued with an exercise price at least 25 hours a week for the Company or for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price that is above the share price atthe evening before the date of issue. They vest over terms of one to four years.
RSUs also vest over terms of one to four years. In the grant andyear ended December 31, 2019, the Company modified the terms of all the RSUs issued prior January 1, 2019, to include a market based performance condition. The Company's share price must be maintained above £2 for thirty days for the RSUs to vest, in accordance with a vesting schedule determined byaddition to the Directors at the time of grant and have an exercise period of ten years from the date of grant.
The Company grants Restricted Stock Units to employees and directors.existing service condition. The RSUs vest overafter a periodfive year term irrespective of three or four years fromwhether the date£2 market condition was met. This modification did not result in an increase in the fair value of the grant using 2 different methods.RSUs. The first method is one third vesting over oneRSUs issued in the year ended December 31, 2019, also include the second third vesting over two yearssame market condition and the final third vesting over three years. The second method is one quarter vesting over onefive year the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years.term.
In the year ended December 31, 2019, under the 2017 Incentive Award Plan, the Company granted 4,656,828 (2016: 1,670,000 )5,569,050 (2018: 2,090,847) share options nil (2016: 32,000) share options under the EMI Scheme and 1,052,236 Restricted Stock Units (“RSUs”) (2016: nil)740,496 RSUs (2018: 273,390). The total fair values of the Optionsoptions and RSUs were estimated using the Black-Scholes option-pricing model for equity-settled transactions and amounted to £5.33£2.25 million (2016: £1.93(2018: £2.32 million). The cost is amortized over the vesting period of the options and RSUs on a straight-line basis.
Prior to the July 2016 Placement in 2016, management determined to take an option's contractual maximum life as an input into the Black-Scholes option-pricing model. Starting from the July 2016 Placement and in line with the continued development of the Company's clinical trials, the Company determined the time to maturity to be used in the valuation model to be better represented by the weighted-average life of the options granted.

F-30

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
16. Share-based payments charge (Continued)


Thebasis.The following assumptions were used for the Black-Scholes valuation of share options and RSUs granted in 20162018 and 2017.2019. For the options granted under the Unapproved Scheme the table indicates the ranges used in determining the fair-market values, aligning with the various dates of the underlying grants. The volatility is calculated using historichistorical weekly averages of the Company's share price over a period that is in line with the expected life of the options.
Issued in 2016EMI Scheme Unapproved
Scheme
Options granted32,000
 1,670,000
Risk-free interest rate1.42% 0.23%-1.42%
Expected life of options10 years
 5.5-10 years
Annualized volatility88.0% 74.3% - 88.0%
Dividend rate0.00% 0.00%
Vesting period3 years
 3 years
    
Issued in 2017Unapproved
Scheme
 Restricted Stock Units
Options granted4,656,828
 1,052,236
Risk-free interest rate0.29% - 0.62%
 0.42%-0.62%
Expected life of options5.5 – 7.0 years
 5.5 – 7.0 years
Annualized volatility71.3% - 73.3%
 71.3% - 73.3%
Dividend rate0.00% 0.00%
Vesting period3 and 4 years
 3 and 4 years
The Company had the following share options movements in the year ended December 31, 2017:
Year of issue Exercise
price (£)
 At January 1, 2017 
Options
granted
 
Options
exercised
 
Options
forfeited
 
Options
expired
 At December 31, 2017 Expiry date 
2012 2.50 - 7.50
 100,000
 
 
 
 
 100,000
 June 1, 2022 
2013 2
 100,000
 
 
 
 
 100,000
 April 15, 2023 
2013 2.00
 20,000
 
 
 
 (20,000) 
 June 1, 2023*
2013 2.00
 160,000
 
 
 
 
 160,000
 July 29, 2023 
2014 1.75
 110,000
 
 
 
 
 110,000
 May 15, 2024 
2014 1.75
 63,333
 
 
 
 (13,333) 50,000
 May 15, 2024*
2014 1.10 - 1.75
 200,000
 
 (133,333) 
 
 66,667
 August 6, 2018
**

2015 1.25
 82,000
 
 
 
 
 82,000
 January 29, 2025*
2015 1.25
 510,000
 
 
 
 
 510,000
 January 29, 2025 
2016 2
 260,000
 
 
 
 
 260,000
 February 2, 2026 
2016 2.00
 22,000
 
 
 
 
 22,000
 February 2, 2026*
2016 1.80
 810,000
 
 
 
 
 810,000
 August 3, 2026 
2016 1.89
 300,000
 
 
 
 
 300,000
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 
 4,656,828
 
 
 
 4,656,828
 April 26, 2027 
Total   3,037,333
 4,656,828
 (133,333) 
 (33,333) 7,527,495
   
*Options granted under the EMI Scheme.
* *    Valued based on fair value of services received.

and RSUs.

F-31149

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)



Issued in 2018 Unapproved
Scheme
 Restricted Stock Units
Options granted 2,090,847
 273,390
Risk-free interest rate 1.08% - 1.22%
 1.08% - 1.22%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 69.88% -71.35%
 69.88% -71.35%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
     
Issued in 2019 Unapproved
Scheme
 Restricted Stock Units
Options granted 5,569,050
 740,496
Risk-free interest rate 0.39% - 0.82%
 0.76% - 0.82%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 67.98% - 69.71%
 63.82% - 69.71%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
The Company had the following Restricted Share Unitsshare options movements in the year ended December 31, 2017:2019:
Year of issue Exercise
price
(£)
 At January 1, 2017 Units
granted
 Units
exercised
 Units
forfeited
 Units
expired
 At December 31, 2017 Expiry date Exercise
price (£)
 At January 1, 2019 
Options
granted
 
Options
forfeited
 
Options
expired
 At December 31, 2019 Expiry date 
2012 2.50 - 7.50
 99,993
 
 
 
 99,993
 June 1, 2022 
2013 2
 99,990
 
 
 (19,998) 79,992
 April 15, 2023 
2013 2.00
 159,999
 
 
 
 159,999
 July 29, 2023 
2014 1.75
 109,998
 
 
 
 109,998
 May 15, 2024 
2014 1.75
 49,998
 
 
 
 49,998
 May 15, 2024*
2015 1.25
 41,997
 
 
 
 41,997
 January 29, 2025*
2015 1.25
 549,999
 
 
 
 549,999
 January 29, 2025 
2016 2
 240,000
 
 
 
 240,000
 February 2, 2026 
2016 2.00
 21,996
 
 
 
 21,996
 February 2, 2026*
2016 1.80
 676,664
 
 
 
 676,664
 August 3, 2026 
2016 1.89
 299,997
 
 
 
 299,997
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 300,000
 September 16, 2026 
2017 
 1,052,236
 
 
 
 1,052,236
 April 26, 2027 1.32 - 1.525
 4,093,164
 
 
 
 4,093,164
 April 26, 2027 
2018 1.46
 2,008,319
 
 (34,614) 
 1,973,705
 March 8, 2028 
2019 570.00
 
 3,903,050
 (87,356) 
 3,815,694
 March 29, 2029 
2019 595.00
 
 346,000
 
 
 346,000
 June 11, 2029 
2019 457.00
 
 100,000
 
 
 100,000
 August 22, 2029 
2019 0.436
 
 720,000
 
 
 720,000
 November 6, 2029 
2019 445.00
 
 500,000
 
 
 500,000
 November 26, 2029 
Total 

1,052,236







1,052,236
    8,752,114
 5,569,050
 (121,970) (19,998) 14,179,196
  

The average fair value at grant date, by year of grant and plan, of the exercisable options as per December 31, 2017 is presented in the below table.
Year of issueEMI Scheme (£) Unapproved
Scheme (£)
 RSU (£)
20120.63 - 1.20
 
 
20130.83
 0.79 - 0.95
  
20140.76
 0.23 - 0.76
  
20150.57
 0.57
  
20161.35
 0.93 - 1.35
  
2017
 0.84
 1.33


Outstanding and exercisable share options by scheme as of December 31, 2017:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved7,313,473
 773,333
 1.50
 1.64
EMI213,984
 185,333
 3.06
 3.28
Total7,527,457
 958,666
 1.54
 1.95

As at December 31, 2017 there were no restricted share options exercisable (2016: nil) and there is no exercise price for restricted share options.





The options outstanding at December 31, 2017 had a weighted average remaining contractual life of 8.6 years (2016: 8.2 years). For 2016 and 2017, the number of options granted and expired and the weighted average
*Options granted under the EMI Scheme.

F-32150

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)


The Company had the following RSU movements in the year ended December 31, 2019:
Year of issue Exercise
price
(£)
 At January 1, 2019 Units
granted
 Units
vested
 Units
forfeited
 At December 31, 2019 Expiry date 
2017   729,987
 
 
 
 729,987
 April 26, 2027 
2018   132,486
 
 
 
 132,486
 March 8, 2028 
2019     740,496
 
 
 740,496
 March 29, 2027 
Total   862,473
 740,496
 
 
 1,602,969
   
Outstanding and exercisable share options by scheme as of December 31, 2019:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved13,965,212
 5,552,293
 1.12
 1.55
EMI213,984
 213,984
 3.06
 3.06
Total14,179,196
 5,766,277
 1.15
 1.61
As of December 31, 2019 there were no restricted share options exercisable (2018: nil) and there is no exercise price for restricted share options.
The options outstanding at December 31, 2019 had a weighted average remaining contractual life of 7.7 years (2018: 8.0 years). For 2018 and 2019, the number of options granted and expired and the weighted average exercise price of options were as follows:
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2016 1,792,000
 1.78
Options granted in 2016:    
Employees 1,002,000
 1.92
Directors 700,000
 2.05
Options exercised in the year (46,666) 1.12
Options forfeited in the year (150,001) 1.24
Options expired in the year (260,000) 2.46
At December 31, 2016 3,037,333
 1.87
Exercisable at December 31, 2016 846,667
 2.25
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2018 7,527,458
 1.53
Options granted in 2018:    
Employees 1,222,089
 1.46
Directors 868,758
 1.46
Options forfeited in the year (799,524) 1.43
Options expired in the year (66,667) 1.75
At December 31, 2018 8,752,114
 1.53
Exercisable at December 31, 2018 3,542,884
 1.66

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2017 3,037,333
 1.87
Options granted in 2017:    
Employees 3,150,846
 1.32
Directors 1,505,982
 1.32
Options exercised in the year (133,333) 1.10
Options forfeited in the year 
 
Options expired in the year (33,333) 1.90
At December 31, 2017 7,527,495
 1.53
Exercisable at December 31, 2017 797,333
 2.04

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2019 8,752,114
 1.53
Options granted in 2019:    
Employees 4,042,106
 0.55
Directors 1,526,944
 0.53
Options forfeited in the year (121,970) 0.82
Options expired in the year (19,998) 2.00
At December 31, 2019 14,179,196
 1.15
Exercisable at December 31, 2019 5,766,277
 1.60
The following table shows the number of RSUs issued, exercised and forfeited in 2017. No RSUs were granted in 2016 and none of the RSUs granted in 2017 were forfeited, canceled or vested in the year.2018. The fair value of each unvested RSU at grant date was £1.32.£1.46.

151

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
17. Share-based payments charge (Continued)


  Number of
RSUs
At January 1, 20172018 1,052,236
Granted:  
Employees 705,841136,404
Directors 346,395136,986
RSUs vested in the year(309,237)
RSUs forfeited in the year(153,916)
At December 31, 2018862,473
The following table shows the number of RSUs issued in 2019. There were no RSUs forfeited, canceled or vested in 2019. The fair value of each unvested RSU granted in 2019 was £0.57.
Number of
RSUs
At January 1, 2019862,473
Granted:
Employees474,072
Directors266,424
RSUs vested in the year
RSUs forfeited in the year
At December 31, 20172019 1,052,2361,602,969


F-33

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


17. Trade and other payables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Trade payables719
 1,214
Other payables54
 74
Accruals2,050
 5,866
Total trade and other payables2,823
 7,154
As of December 31, 2016, accruals included £0.89 million related to expenses associated with the Global Offering which was fully paid during the year ended December 31, 2017.
18. Assumed contingent obligation related to the business combinationDerivative financial instrument
The value of the assumed contingent obligation as of December 31, 2017 amounts to £875 thousand (2016: £802 thousand). The increase in value of the assumed contingent obligation during 2017 amounted to £73 thousand (2016: £208 thousand ) and was recorded in finance expense as it related to the unwind of the discount on the liability and retranslation for changes in US$ exchange rates. Periodic re-measurement is triggered by changes in the probability of success. In 2016 the remeasurement was triggered by the success of the Company's Phase 2a clinical trial, presented in March 2016. The discount percentage applied is 12%. In 2017 there were no events that triggered remeasurement.
 2016 2017
 £'000s £'000s
January 1594
 802
Re-measurement of assumed contingent obligation86
 
Impact of changes in foreign exchange rates37
 (23)
Unwinding of discount factor85
 96
December 31802
 875
The table below describes the reported change to the value of the liability during 2017 of £73 thousand (2016: £208 thousand) compared to what this number would be following the presented variations to the underlying assumptions (assuming the probability of success does not change):
 2016 2017
 £'000s £'000s
Change in value of the assumed contingent obligation208
 73
10% lower revenue assumption202
 72
10% higher revenue assumption215
 73
1% lower risk assumption205
 69
1% higher risk assumption211
 76

F-34

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


19. Warrants
Pursuant to the July 2016 Placement, onOn July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant.
The warrant holders can subscribe for 0.4 of an ordinary share at a per share exercise price of 120% of the placing price or £1.7238. The warrant holders can opt for a cashless exercise of their warrants, whereby the warrant holders can choose to exchange the warrants held for reduced number of warrants exercisable at nil consideration. The reduced number of warrants is calculated based on a formula considering the share price and the exercise price of the warrants. The warrants are therefore classified as a derivative financial liability, since their exercise could result in a variable number of shares to be issued.
The warrants entitled the investors to subscribe for, in aggregate, a maximum of 12,446,37012,401,262 shares. The warrants can be exercised on the earlier of the consummation of the Global Offering (being April 26, 2017) or the first anniversary of the grant, and the exercise period shall end on the fifth anniversary of the date of grant (being July 29, 2021).
The ordinary shares and warrants were accounted for as a compound financial instrument. The warrants component of the instrument issued at the July 2016 Placement was classified as a derivative financial liability and was initially measured at fair value of £9.0 million. The residual amount of proceeds totaling £35.7 million was recognized within equity. Subsequently the financial liability was re-measured at the reporting date at fair value through profit or loss.
The total of transaction costs the Company incurred for the above transactions amounted to £2.9 million of which £0.6 million was allocated to the warrants and the remaining £2.3 million was presented as a reduction to share premium, by reference to the proceeds allocated to each component. The amount assigned to the financial liability of the warrants was subsequently presented as finance expense in the Consolidated Statement of Comprehensive Income.until May 2, 2022.
In the year ended December 31, December 20172019, no warrants over 45,108 shares were forfeited (2016:(2018: nil).
The table below presents the assumptions in applying the Black-Scholes model to determine the fair value of the warrants.
As of December 31, 2016 As of December 31, 2017As of December 31, 2019 As of December 31, 2018
Shares available to be issued under warrants

12,446,370
 12,401,262
12,401,262
 12,401,262
Exercise price£1.7238
 £1.7238
£1.7238
 £1.7238
Risk-free interest rate0.088% 0.420%0.540% 0.760%
Expected term to exercise2.43 years
 1.79 years
2.34 years
 3.34 years
Annualized volatility73.53% 47.35%65.56% 60.72%
Dividend rate0.00% 0.00%0.00% 0.00%

The figures disclosed above relating to the issue
152


As per the reporting date, the Company updated the underlying assumptions and calculated a fair value of these warrants amounting to £1.3£0.9 million. The variance of £6.7£(1.6) million is recorded as finance income in the Consolidated Statement of Comprehensive Income.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit or loss(1,597) 1,219
At December 31895
 2,492
For the amount recognized at December 31, 2019, the effect when the following parameter deviates up or down is presented in the below table.
Volatility
(up / down
10% pts)
£'000s
Variable up1,306
Base case, reported fair value895
Variable down535
19. Trade and other payables
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Trade payables1,455
 2,839
Other payables
 12
Accruals6,806
 4,882
Total trade and other payables8,261
 7,733
20. Assumed contingent liability related to the business combination
The value of the assumed contingent liability as of December 31, 2019 is £1.1 million (2018: £1.0 million). The increase in value of the assumed contingent liability during 2019 amounted to £0.1 million (2018: £0.1 million).
The assumed contingent liability relates to the acquisition, in 2006, of rights to certain patents and patent applications relating to ensifentrine and related compounds under which the Company is obliged to pay royalties to Ligand (see 2.12).
The assumed contingent liability is measured at the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement is discounted back to its net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.

F-35153

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
19. Warrants (Continued)2019

Re-measurements relating to changes in estimated cash flows and probabilities of success are recognized in the IP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
The Company considers that probabilities of success will change when it moves from one stage of clinical development to another. See note 4 for a further discussion of this.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2016 2017
 £'000s £'000s
At January 1
 7,923
On issuance of shares8,991
 
Fair value adjustments recognized in profit or loss(1,068) (6,650)
At December 317,923
 1,273
 2019 2018
 £'000s £'000s
January 1996
 875
Impact of changes in foreign exchange rates(12) 15
Unwinding of discount factor119
 106
December 311,103
 996

There is no material difference between the fair value and carrying value of the financial liability.
For the amount recognized as at December 31, 2017,2019, of £1,103 thousand, the effect when some of theseif underlying parameters wouldassumptions were to deviate up or down is presented in the below table.following table (assuming the probability of success does not change):
 
Volatility
(up / down
10% pts)
 
Time to
maturity
(up / down
6 months)
 £'000s £'000s
Variable up1,921
 1,677
Base case, reported fair value1,273
 1,273
Variable down694
 843
20. Financial commitments


Discount rate
(up / down
1 % pt)
Revenue
(up / down
10 % pts)
 £'000s£'000s
Variable up1,0671,135
Base case, reported fair value1,1031,103
Variable down1,1411,071

As of December 31, 2017, the Company was committed to making the following payments under non-cancellable operating leases related to its facilities.
 
Land and
Buildings
 
Land and
Buildings
 2016 2017
 £'000s £'000s
Operating lease obligations:   
Within one year270
 291
Between one and five years
 277
Total270
 568

F-36154

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

21.22. Related parties transactions and other shareholder matters
(i)    Related party transactions
The Directors have authority and responsibility for planning, directing and controlling the activities of the Company and they therefore comprise key management personnel as defined by IAS 24, ("Related Party Disclosures").
Directors and key management personnel remuneration is disclosed in note 8.
(ii)    Other shareholder matters
The Company has entered into the following arrangements with parties who are significant shareholders of the Company, though they are not classed as related parties.
The Company entered into relationship agreements with Vivo CapitalVentures Fund VIII ("VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. (collectively, "Vivo Capital"), Orbimed Private Investments VI L.P. ("Orbimed"), and Abingworth Bioventures VI L.P. ("Abingworth"), and Arix Bioscience plc ("Arix") and Arthurian Life Sciences SPV GP Limited, ("Arthurian"). As agreed in these relationship agreements, the above parties invested in the Company as part of the July 2016 Placement, and the Company agreed to appoint representatives designated by Vivo Capital, OrbiMed Abingworth, and Arix and Arthurian,Abingworth to the board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair and Dr. Ken Cunningham respectively.Sinclair.
The appointment rights within the relationship agreement with Arix and Arthurian terminated on closing of the Global Offering on April 26, 2017;2017. Dr Cunningham has agreed to continue to serve on the Company's board of directors as an independent director. The respective appointment rights under the remaining relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of the issued ordinary shares, or (ii) the ordinary shares ceasing to be admitted to AIM.
Piers Morgan, Chief Financial Officer of the Company, and his spouse purchased 88,415 ordinary shares in total for £53 thousand from the market in the year ended December 31, 2019 (2018: £nil).
Dr. Jan-Anders Karlsson, Chief Executive Officer of the Company, purchased 3,250 ordinary shares for £5 thousand from the market in the year ended December 31, 2018. There was no similar transaction as at December 31, 2019.
Dr. David Ebsworth, Chairman of the Company, purchased 247,600 ordinary shares for £124 thousand from the market in the year ended December 31, 2019 (2018: £14 thousand).
At December 31, 2018, there was a receivable of £126 thousand due from one director and two key management personnel relating to tax due on RSUs that vested in the year ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. There was no such balance as at December 31, 2019.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
22. Events after the reporting date
On February 3, 2020, the Company announced the appointment of David Zaccardelli as chief executive officer with effect from February 1, 2020, following the retirement of Jan-Anders Karlsson, PhD. The Company also entered into a management rights agreement with Novo A/S under which Novo A/S was entitled to appoint an observer to the Board;announced the appointment rights within the management rights agreement terminated on closing of the Global Offering on April 26, 2017.Mark Hahn as chief financial officer with effect from March 1, 2020, as successor to Piers Morgan.





F-37155
000s
 £'000s
Research and development costs£(4,522) £(23,717) $(32,087)£(33,476) $(44,419) £(19,294)
General and administrative costs(2,498) (6,039) (8,170)(7,607) (10,094) (6,297)
Operating loss(7,020) (29,756) (40,257)(41,083) (54,513) (25,591)
Finance income1,841
 7,018
 9,495
2,351
 3,120
 2,783
Finance expense(794) (2,465) (3,335)(474) (629) (1,325)
Loss before taxation(5,973) (25,203) (34,097)(39,206) (52,022) (24,133)
Taxation — credit954
 4,706
 6,367
7,265
 9,640
 4,232
Loss for the year(5,019) (20,497) (27,730)(31,941) (42,382) (19,901)
Other comprehensive income / (loss): 
    
Other comprehensive (loss) / income     
Exchange differences on translating foreign operations43
 (29) (39)(33) (44) 38
Total comprehensive loss attributable to owners of the company£(4,976) £(20,526) $(27,769)£(31,974) $(42,426) £(19,863)


Comparison of Operations for the Years ended December 31, 20172019 and 20162018
The operating loss for the year ended December 31, 20172019 was £29.8£41.1 million (2016: £7.0(2018: £25.6 million) and the loss after tax for the year ended December 31, 20172019 was £20.5£31.9 million (2016: £5.0(2018: £19.9 million).
Research and Development Costs
Research and development costs were £23.7£33.5 millionfor the year ended December 31, 2019 as compared to £19.3 million for the year ended December 31, 20172018, an increase of £14.2 million. The cost of clinical trials increased by £12.7 million as there were two active trials in the year ended December 31, 2018, compared to £4.5four clinical trials in the year ended December 31, 2019. Pre-clinical costs increased by £0.3 million which was offset by a reduction in contract manufacturing and formulation development costs by £0.4 million. Personnel related costs increased by £1.3 million in the year ended December 31, 2019, compared to the prior year.
General and Administrative Costs
General and administrative costs were £7.6 million for the year ended December 31, 2016, an increase of £19.2 million. The increase was attributable2019 as compared to a £12.3 million increase in clinical trial expenses related to the initiation of four, and completion of two, Phase 2 clinical trials of RPL554. In addition we increased spending on contract manufacturing and other formulation work by £2.7 million and toxicology and other pre-clinical development by £1.2m. Our salary costs increased by £0.3m and our share-based payment charge by £1.2 million as we expanded our team and initiated a new long term incentive plan to drive development of RPL 554. Furthermore, our spend on third party consultants increased by £0.8 million and patent and other costs by £0.3 million.
General and Administrative Costs
General and administrative costs were £6.0£6.3 million for the year ended December 31, 2017 as compared to £2.5 million for the year ended December 31, 2016, 2018, an increase of £3.5£1.3 million. The increase was primarily attributable to £0.8a £0.9 million increase in our salarycosts relating to commercial market research, a £0.3 million increase in personnel related costs and a £1.1£0.6 million increase in our share-based payment charge as we built the team to support the activities of the Company. Thereother overhead costs. This was an increase of £1.3offset by a £0.5 million of costsdecrease in preparation for and relating to the Global Offering, as well as ongoing compliance and other costs due to listing our ADSs on the Nasdaq stock market. We also incurred costs of £0.4 million developing our commercial strategy for RPL 554.share based payments.
Finance Income and Expense
Finance income was £7.0£2.4 million for the year ended December 31, 20172019 and £1.8£2.8 million for the year ended December 31, 2016.2018. The decrease was due to a loss in foreign exchange on cash and short term investments (recorded as a finance expense) compared to £1.9 million gain in the prior year. This was offset by a £1.6 million decrease in the fair value of the warrant liability in the year ended December 31, 2019 compared to an increase in the liability in the year ended December 31, 2018 (which is a non-cash item, recorded as a finance incomeexpense).
Finance expense was primarily£0.5 million for the year ended December 31, 2019, as compared to £1.3 million for the year ended December 31, 2018. The movement was due to a decrease in the fair value of the warrant liability (recorded in finance income), compared to an increase of £6.6£1.2 million caused by changesDecember 31, 2018, both non-cash items. In addition, there was a foreign exchange loss on cash and short-term investments in the underlying assumptions for measuring the liabilityDecember 31, 2019 of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £2.5 million for£0.3 million. In the year ended December 31, 2017 as compared to £0.8 million for the year ended December 31, 2016. The increase2018, there was primarily due to thea foreign exchange loss on translation of foreign currency denominated cash and cash equivalents and short term investments.gain (recorded in finance income).
As at December 31, 2017 the Company had2019, there was approximately £31.4£22.9 million in cash and cash equivalents (2016: £39.8(2018: £19.8 million) and £48.8£7.8 million in short termshort-term investments (2016: £nil)(2018: £44.9 million).
Taxation
Taxation for the year ended December 31, 20172019 amounted to a credit of £4.7£7.3 million as compared to a credit of £1.0£4.2 million for the year ended December 31, 2016,2018, an increase in the credit amount of £3.7£3.1 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the increase in the credit amount was primarily attributable to our increased expenditure on research and development.



Comparison of Operations for the Years ended December 31, 2016 and 2015
The following table sets forth our results of operations for the periods indicated.
 Year Ended December 31,
 20152016
 £000's £000's
Research and development costs(7,270) (4,522)
General and administrative costs(1,706) (2,498)
Operating loss(8,976) (7,020)
Finance income45
 1,841
Finance expense(73) (794)
Loss before taxation(9,004) (5,973)
Taxation — credit1,509
 954
Loss for the year(7,495) (5,019)
Other comprehensive income:   
Exchange differences on translating foreign operations4
 43
Total comprehensive loss attributable to owners of the company(7,491) (4,976)
Comparison of Operations for the Years ended December 31, 2016 and 2015
Research and Development Costs
Research and development costs were £4.5 million for the year ended December 31, 2016 as compared to £7.3 million for the year ended December 31, 2015,  a decrease of £2.8 million. The decrease was attributable to a £3.6 million decrease in clinical trial expenses related to the completion of our Phase 2a clinical trials of RPL554 in late 2015 and early 2016, which were partially offset by a £0.7 million increase in research and development personnel costs and a £0.1 million increase in pre-clinical research, contract manufacturing, patent and other costs.
General and Administrative Costs
General and administrative costs were £2.5 million for the year ended December 31, 2016 as compared to £1.7 million for the year ended December 31, 2015, an increase of £0.8 million. The increase was attributable to a £0.2 million increase in personnel costs, a £0.3 million increase in professional service fees and expenses, and a £0.2 million increase in other facility and office related costs.
Finance Income and Expense
Finance income was £1.8 million for the year ended December 31, 2016 and £45 thousand for the year ended December 31, 2015. The increase in finance income was primarily due to a decrease in the fair value of the warrant liability of £1.1 million caused by changes in the underlying assumptions for measuring the liability of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £0.8 million for the year ended December 31, 2016 as compared to £0.1 million for the year ended December 31, 2015. The increase was primarily due to the inclusion of the proportion of expenses incurred in connection with the July 2016 Placement which related to the issue of warrants, and which were recorded as a finance expense (the remainder of the July 2016 Placement expenses related to the equity issued and were recorded as a charge against share premium), as well as an increase in the calculated value of the assumed contingent obligation resulting from the Vernalis Agreement.
Taxation
Taxation for the year ended December 31, 2016 amounted to a credit of £1.0 million as compared to a credit of £1.5 million for the year ended December 31, 2015, a decrease in the credit amount of £0.5 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the decrease in the credit amount was primarily attributable to our decreased expenditure on research and development.

B. Liquidity and Capital Resources
Overview
Since our inception, we have incurred significant operating losses. We anticipate that we will continue to incur losses for at least the next several years. We expect that our research and development and general and administrative costs will increase in connection with conducting clinical trials for RPL554 and seeking marketing approval for RPL554 in the United States and Europe as well as other jurisdictions. As a result, we will need additional capital to fund our operations, which we may obtain from additional financings, research funding, collaborations, contract and grant revenue or other sources.
We do not currently have any approved products and have never generated any revenue from product sales or otherwise. To date, we have financed our operations primarily through the issuances of our equity securities, including warrants. Since our
The Company has incurred recurring losses since inception, we raised gross proceedsincluding net losses of approximately £145£31.9 million, from private placements of equity securities, of which approximately £70£19.9 million was raised in Apriland £20.5 million for the years ended December 31, 2019, 2018 and 2017, through our Nasdaq listing and the accompanying private offering in Europe and the shareholder private placement; we raised a further £45 million raised in our July 2016 private placement of equity securities with a number of European and U.S.-based healthcare specialist investment firms. Asrespectively. In addition, as of December 31, 2017, we2019, the Company had an accumulated loss of £100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that its cash and cash equivalents, would be sufficient to fund its operating expenses and capital expenditure requirements for at least 12 months from the issuance date of £31.4 million. Asthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of December 31, 2017 weassets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional finance on acceptable terms, or at all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also held short term investments (representing bank deposits with maturitiesforce the Company to delay, reduce or eliminate some or all of greater than 3 months at inception)its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of £48.8 million.operations and financial condition.
We have no ongoing material financing commitments, such as lines of credit or guarantees, that are expected to affect our liquidity over the next five years, other than leases.
Cash Flows
The table below summaries our cash flows for each of the periods presented. For the convenience of the reader, we have translated pound sterling amounts as of December 31, 2019 at the noon buying rate of the Federal Reserve Bank of New York on December 31, 2019, which was £1.00 to $1.3269. These translations should not be considered representations that any such amounts have been, could have been or could be converted into U.S. dollars at that or any other exchange rate as of that or any other date.
 Year Ended December 31,
 2016 2017
 £000's
 £000's
 $000's
Net cash used in operating activities£(5,588) £(20,696) $(28,000)
Net cash used in investing activities(41) (49,469) (66,927)
Net cash from financing activities41,203
 63,246
 85,566
Net increase / (decrease) in cash and cash equivalents£35,574
 £(6,919) $(9,361)

 Year Ended December 31,
 2019 2018
 £'000s
 $'000s
 £'000s
Net cash used in operating activities£(33,820) $(44,876) £(18,111)
Net cash generated from investing activities37,799
 50,155
 5,281
Net cash used in financing activities(426) (565) 
Net increase / (decrease) in cash and cash equivalents£3,553
 $4,714
 £(12,830)
The decreaseincrease in net cash used in operating activities to £20.7£33.8 million for the year ended December 31, 20172019, from £5.6£18.1 million for the year ended December 31, 20162018, was primarily due to an increase in loss before taxation driven by higher research and development costs.
Theoperating activities of £15.5 million, which principally comprises the increase in netclinical trial and other research expenditure amounting to £14.2 million together with an increase in General and Administrative expenditure of £1.3 million, each of which are described further above.
Net cash used in(used in) / generated from investing activities to £49.5predominantly reflects the net movement of cash being placed on deposit for more than three months and such deposits maturing, because deposits of more than three months are disclosed as short-term investments, separately from cash. Net cash generated from investing activities was £37.8 million for the year ended December 31, 20172019, compared to net cash generated from £41 thousandinvesting activities of £5.3 million for the year ended December 31, 20162018. In 2019, there was duea net decrease in short-term deposits of three months or more reflecting a higher value of short-term deposits maturing, and being transferred to placing funds raised incash, than being placed. We balance the Global Offering on termobjective of obtaining higher interest income from longer-term deposits with maturitiesshort-term liquidity requirements.

There was £0.4 million repayment of more than three months at inception.
The net cash of £63.2 million received fromfinance lease liabilities in financing activities to for the year ended December 31, 2017 was the cash raised from the Global Offering. The £41.2 million received2019, relating to payments for leased office space. There were no financing activities for the year ended December 31, 2016 was the cash received from the sale of our equity securities and warrants in connection with the July 2016 Placement.2018.
Operating and Capital Expenditure Requirements
As of December 31, 2017,2019, we had an accumulated loss of £49.3£100.6 million. We expect to continue to incur significant operating losses for the foreseeable future as we continue our research and development efforts and seek to obtain regulatory approval and commercialization of RPL554ensifentrine and any future product candidate we develop.
We anticipate that our expenses will increase substantially if and as we:

initiate and conduct our plannedPhase 3 clinical trials for RPL554ensifentrine for the maintenance treatment of COPDCOPD;
continue the clinical development of our DPI and as a treatment for acute COPD;pMDI formulations of ensifentrine and research and develop other formulations of ensifentrine;
initiate and conduct our plannedfurther clinical trials for RPL554ensifentrine for the treatment of CF;
continue the research and development ofacute COPD, CF or any other formulations of RPL554, including developing our DPI andpMDI formulations of RPL554;indication;
initiate and progress pre-clinical studies relating to other potential indications of RPL554;ensifentrine;
seek to discover and develop additional product candidates;
seek regulatory approvals for any of our product candidates that successfully completescomplete clinical trials;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize any products for which we may obtain regulatory approval;
maintain, expand and protect our intellectual property portfolio;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts and to support our continuing operations as a UK and U.S. public company listed on the Nasdaq;company; and
experience any delays or encounter any issues from any of the above, including but not limited to failed studies, complex results, safety issues or other regulatory challenges.
We expectThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had an accumulated loss of £101.1 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that our existingits cash and cash equivalents, and short-term investments will enable uswould be sufficient to fund ourits operating expenses and capital expenditure requirements throughfor at least 12 months from the endissuance date of ourthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 2 development of nebulized RPL554 and our proof-of-concept development with DPI and pMDI formulations of RPL5543 program for the maintenance treatment of COPD as well as our Phase 2 development of nebulized RPL554once it believes it has alignment with the FDA on its planned design for the treatment of CF. We have basedPhase 3 clinical program. The Company will require significant additional funding to initiate and complete this estimate on assumptions that may prove to be wrong,Phase 3 program and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of RPL554 and any future product candidates and because the extent to which we may enter into collaborations with third parties for development of RPL554 is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of RPL554. Our future capital requirements for RPL554 or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for RPL554 or any future product candidates and the potential that we may be required to conduct additional clinical trials for RPL554;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of RPL554 or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for RPL554 or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to RPL554 any future product candidates;
any licensing or milestone fees we might have to pay during future development of RPL554 or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of RPL554 or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of RPL554 or any future product candidates, if approved.

Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantialsecure the required capital to fund the program.   The Company will seek additional funds to achieve our business objective.
Adequatefunding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional funds may not be available to usfinance on acceptable terms, or at all. all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial condition.
To the extent that we raise additional capital through the sale of equity or convertible debt securities, yourthe ownership interest of our shareholders and ADS holders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect yoursuch holders’ rights as a shareholder.shareholder or ADS holder. Any future debt financing or preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute yourour security holders’ ownership interests.

If we raised additional funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.
Our future capital requirements for ensifentrine or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for ensifentrine or any future product candidates and the potential that we may be required to conduct additional clinical trials for ensifentrine;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of ensifentrine or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for ensifentrine or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to ensifentrine or any future product candidates;
any licensing or milestone fees we might have to pay during future development of ensifentrine or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of ensifentrine or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of ensifentrine or any future product candidates, if approved.
Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantial additional funds to achieve our business objective.
C. Research and Development, Patent and Licenses, etc.
For a discussion of our research and development activities, including amounts spent on company-sponsored research and development activities for the last three financial years, see “ItemItem 4.B. Business Overview”Overview and “ItemItem 5.A. Operating Results.
D. Trend Information
Other than as disclosed elsewhere in this Annual Report, we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our net revenues, income from continuing operations, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions. For more information, see “ItemItem 4.B. Business Overview,” “Item Item 5.A. Operating Results, and “ItemItem 5.B. Liquidity and Capital Resources.
E. Off-Balance Sheet Arrangements
During the periods presented, we did not, and we do not currently, have any off-balance sheet arrangements.
F. Contractual Obligations and Commitments
The table below summarizes ourCompany has contractual obligations at December 31, 2017.
 Payments Due by Period
 Total 
Less than
1 year
 
1 - 3
years
 
3 - 5
years
 
More than
5 years
 (£000's)
Operating lease obligations568
 291
 277
 £— £—
Total568
 291
 277
 £— £—
commitments for office space, in London and New York. After the adoption of IFRS 16 these are recognized as right of use assets on the Consolidated Statement of Financial Position. As a result they are not disclosed as operating lease liabilities.
The table above does not includeCompany has assumed contingent obligationliability payments we may be required to make under the VernalisLigand Agreement because the amount, timing and likelihood of payment are not known. Such additional payment obligationsliabilities may be material. See sections titled "— License Agreement with Vernalis"Ligand" and "Business — VernalisLigand Agreement."

In addition, we enter into contracts in the ordinary course of business with contract research organizations, ("CROs")or CROs, to assist in the performance of our research and development activities and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the table of contractual obligationsliabilities and commitments.



Selected Quarterly Financial Data (unaudited)
Selected quarterly results from operations for the year ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts).
 Fiscal 2017 Quarter Ended
 December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017
 £'000s £'000s £'000s £'000s
Research and development costs9,689
 6,085
 4,838
 3,105
General and administrative costs998
 2,040
 1,969
 1,032
 Fiscal 2016 Quarter Ended
 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
 £'000s £'000s £'000s £'000s
Research and development costs1,868
 1,409
 522
 723
General and administrative costs1,085
 752
 350
 311


ITEM 6: DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
A. Executive Officers and Directors
The following table presents information about our executive officers, directors, and directors,other key members of management, including their ages as of February 27, 2017:

the date of this Annual Report:
Name Age Position
Executive Officers    
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharm.D. 6355 President, Chief Executive Officer and Director
Piers Morgan 5153 Chief Financial Officer
Kenneth Newman,Claire Poll52General Counsel
Kathleen Rickard, M.D. 6061 Chief Medical Officer
Peter Spargo, Ph.D.Other Key Management 56
Richard Hennings50Vice President and Commercial Head
Desiree Luthman60Vice President, Regulatory Affairs
Tara Rheault44Vice President, R&D Operations and Global Project Management
Peter Spargo58 Senior Vice President, Chemistry Manufacturing and Controls
Claire Poll51Legal Counsel
Richard Hennings48Commercial Director
Desiree Luthman58Vice President, Regulatory Affairs
Non-Executive Directors    
Ken Cunningham, M.D.(2)
67Non-executive Director
David Ebsworth, Ph.D.(1,2,3)
 6365 Chairman of the Board
Ken Cunningham, M.D.(2)
65Non-executive Director
Rishi Gupta(2)
 4042 Non-executive Director
Mahendra Shah, Ph.D.(3)
 7375 Non-executive Director
Andrew Sinclair, Ph.D.(1)
 4648 Non-executive Director
Vikas Sinha(1)
 5456 Non-executive Director
Anders Ullman, Ph.D.(3)
 6264Non-executive Director
Martin Edwards, M.D.64 Non-executive Director
(1)Audit and Risk Committee member
(2)Remuneration Committee member
(3)Governance Committee member
The current business addresses for our executive officers and board of directors is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE, the United Kingdom.
The following are brief biographies of our executive officers and directors:
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharma.D. Dr. KarlssonZaccardelli has served as our President and Chief Executive Officer and on our board of directors since June 2012.February 2020. From January 2005December 2018 until its acquisition by Swedish Orphan Biovitrum for up to May 2012,$915 million in November 2019, Dr. KarlssonZaccardelli served as President and CEO of Dova Pharmaceuticals, a US company developing therapeutics for rare diseases. Previously, he was Acting CEO of Cempra, from December 2016 until the company’s merger with Melinta Therapeutics in November 2017. From 2004 until 2016, Dr Zaccardelli served in several senior management roles at United Therapeutics Corporation, including Chief ExecutiveOperating Officer, of S*BIO Pte Ltd, a biotechnology company in Singapore. Previously to S*BIO, Dr. Karlsson wasChief Manufacturing Officer and Executive Vice President, Pharmaceutical Development and headOperations. Prior to United Therapeutics, he founded and led a start-up company focused on contract research positions and held a variety of Pharma Global Researchclinical research positions at Bayer HealthCare AG in Germany.Burroughs Wellcome & Co, Glaxo Wellcome, and Bausch & Lomb Pharmaceutical. Dr. KarlssonZaccardelli received an M.Sc. in pharmacy from Uppsala University and a Doctor of Medical Science (Ph.D.) in clinical experimental pharmacologyPharm.D. from the University of Lund.Michigan.
Piers Morgan. Mr. Morgan has served as our Chief Financial Officer since September 2016. From November 2015 to September 2016, Mr. Morgan was an independent consultant. From May 2014 to November 2015, Mr. Morgan was the Chief Executive Officer of C4X Discovery plc, a biotechnology company. Prior to C4X, Mr. Morgan co-founded uniQure N.V., a biotechnology company, in Amsterdam, where he served as Chief Financial Officer from December 2009 to May 2014. Mr. Morgan is a member of the Institute of Chartered Accountants in England and Wales and received an M.A. in law and management studies from the University of Cambridge.
Kenneth NewmanKathleen Rickard, M.D. , M.D.Dr. NewmanRickard has served as our Chief Medical Officer since January 2015. From December 2013February 2019. Prior to December 2014,joining Verona Pharma, Dr. Newman was Chief Development OfficerRickard served in multiple roles at Mesoblast Inc.,Aerocrine AB, a biotechnology company. From 2010 to November 2013, Dr. Newman wasmedical diagnostics product company, including as Chief Medical Officer from April 2011 to January 2019, and as Chief Compliance Officer from April 2014 to January 2019. Prior to Aerocrine, Dr. Rickard was Vice President Clinical Development and Medical Affairs of Acton Pharmaceuticals, Inc.,the Respiratory Medicines Development Centre at GlaxoSmithKline, a specialtypharmaceutical

company, and, over a period of 15 years, held a number of other leadership positions in clinical development across GlaxoSmithKline’s global respiratory pharmaceutical company, which was acquired by Meda Pharmaceuticals, Inc.franchise. Dr. NewmanRickard received an M.D. from theHahnemann University of Texas Health Science Center at Houston and an M.B.A. in management from the University of Cincinnati College of Business.
Peter Spargo, Ph.D. Dr. Spargo has served as our Senior Vice President, Chemistry Manufacturing and Controls since May 2014. From January to October 2015, Dr. Spargo also served as Senior Vice President, CMC at Spinifex Pharmaceuticals Inc., a biotechnology company, that was acquired by Novartis International AG. From 2011 to 2013, Dr. Spargo was Senior Vice President, CMC at Creabilis SA, a pharmaceutical company. Dr. Spargo received an M.A. in natural sciences and a Ph.D. in synthetic organic chemistry from Cambridge University.Hospital, Philadelphia.
Claire Poll. Ms. Poll has served as LegalGeneral Counsel since September 2016. From September 2015 to August 2016, Ms. Poll served as an advisor to us on legal, general corporate and financing matters. She also served as an

Executive Director on our board of directors from September 2006 until September 2015. Ms. Poll received a Bachelor of Laws from the University of Western Australia and a Diploma in Applied Finance and Investment from the Securities Institute of Australia.
Desiree Luthman, DDS.David Ebsworth,Ph.D. Dr LuthmanDr. Ebsworth has served as the Non-Executive Chairman of our Vice President, Regulatory Affairsboard of directors since June 2017.December 2014. From October 2009 to August 2014, Dr. LuthmanEbsworth served as Chief Executive Officer of Vifor Pharma, based in Zürich, the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012, Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. In his earlier career, Dr. Ebsworth worked with Bayer AG for over 19 years, heading the Canadian, North American and global pharmaceutical business. He also served as Chief Executive Officer of Oxford Glycosciences, a biotech company, listed on the London Stock Exchange and Nasdaq, which was acquired by Celltech plc (now part of UCB) in 2003. Dr. Ebsworth received a Ph.D. in industrial relations from the University of Surrey.
Ken Cunningham, M.D. Dr. Cunningham has served as a Non-Executive Director on our board of directors since September 2015. Dr. Cunningham has over 25 years’ experience in the pharmaceutical industry including leadership roles at several companies focused on developing respiratory medicines. Between 2008 and 2010, he was at SkyePharma plc (now part of Vectura Group plc), initially as Chief Operating Officer and subsequently as Chief Executive Officer where he was involved in the late-stage development of flutiform for asthma. Earlier in his career, Dr. Cunningham held a variety of clinical development and commercial strategy roles at GlaxoWellcome plc and Warner-Lambert. Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena Holdings (US) LLC and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Martin Edwards, M.D. Dr. Edwards has served as a Non-Executive Director on our board of directors since April 2019. Since 2003, Dr. Edwards has held various positions at Novo Holdings, a life sciences investment firm, and most recently as part-time Senior Partner. Earlier in his career, he was Corporate VP and Global Head of Drug Development for Novo Nordisk, where he led all aspects of pre-clinical and clinical drug development. Dr. Edwards currently serves on the boards of directors of Kalvista Pharmaceuticals Inc, F2G Ltd, Harmony Biosciences Inc, Karus Therapeutics Ltd, Nuvelution Pharma Inc, and Vantia Therapeutics Ltd. Dr. Edwards trained in physiology and medicine at the University of Manchester. He is a Member of the Royal College of Physicians, a Member with distinction of the Royal College of General Practitioners, a Fellow of the Faculty of Pharmaceutical Medicine and holds a MBA from the University of Warwick.
Rishi Gupta. Mr. Gupta has served as a Non-Executive Director on our board of directors since July 2016. Mr. Gupta was designated for appointment to our board of directors by OrbiMed Private Investments VI, LP, or OrbiMed, pursuant to our relationship agreement with OrbiMed. Since 2002, Mr. Gupta has held various positions at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Partner. Prior to that, he was a healthcare investment banker at Raymond James & Associates, served as manager of corporate development at Veritas Medicine and was a summer associate at Wachtell, Lipton. Mr. Gupta currently is a member of the board of directors of Avitide, Inc., Turnstone Biologics, Inc., Attenua, Inc, EnLiven Therapeutics, Inc, and Pionyr Immunotherapeutics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016. Dr. Shah was designated for appointment to our board of directors by funds affiliated with Vivo Capital pursuant to our relationship agreement with such funds. Dr. Shah is a successful pharmaceutical entrepreneur and executive and, since March 2010, has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah serves as a member of the board of directors of Scilex Pharmaceuticals, Inc., Fortis Inc., Citrine Medicines, Inc., and several private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India.
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Dr. Sinclair was designated for appointment to our board of directors by Abingworth Bioventures VI, LP, or Abingworth, pursuant to our relationship agreement with Abingworth.Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received

a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Mr. Sinha has over 20 yearsyears’ experience working in executive finance roles in the life sciences industry. Mr. Sinha is co-founder and Chief Financial Officer of regulatory experienceElevateBio, Inc., a holding company focused on building cell and gene therapy companies. He also serves as President and Chief Financial Officer of AlloVir, Inc., an ElevateBio portfolio company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of Alexion Pharmaceuticals, Inc., a biotechnology company, where he was responsible for finance, business development, strategy, investor relations and IT. Prior to joining Alexion, Mr. Sinha held various positions with Bayer AG in the United States, Japan, Germany and Canada, including both largeVice President and small pharmaceutical companies across different regionsChief Financial Officer of Bayer Pharmaceuticals Corporation in the United States and different therapeutic areas. From 2015 to 2017,Vice President and Chief Financial Officer of Bayer Yakuhin Ltd. in Japan. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. LuthmanUllman has served as Senior Regulatorya Non-Executive Director Global Inflammation - Immunocology Therapeutic Areaon our board of directors since September 2015. From 2016 to 2018, Dr. Ullman served as Head of the COPD Centre at Sanofi.Sahlgrenska University Hospital, Sweden. From 2013 to 2015,2014, he was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 2007 to 2013, Dr. LuthmanUllman was Executive Vice President, Head of Research and Development at Nycomed Pharma Private Limited (now part of Takeda Pharmaceuticals Company Limited), where he led the development and approval of Daxas, the PDE4 inhibitor used to prevent COPD exacerbations. Earlier in his career, he held a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb.number of roles in AstraZeneca. Dr. LuthmanUllman serves on the board of directors of Pexa AB. Dr. Ullman received a doctorateM.D. and a Ph.D. in dentistryclinical pharmacology from the Karolinska Institute, Stockholm, Sweden.University of Gothenburg.
Other Senior Management
The following are brief biographies of other members of the senior management team that participate in leading ensifentrine's development.
Richard Hennings. Mr. Hennings has served as ourVice President and Commercial DirectorHead since March 2017. From May 2016 to March 2017, Mr. Hennings was the Global Marketing Director for AstraZeneca UK Limited, a biopharmaceutical company. Since July 2015, Mr. Hennings has been a director of Hennings Consulting Ltd., where he consults with healthcare organizations on commercial strategy. From January 2012 to June 2015, Mr. Hennings held various positions at Gilead Sciences, Inc., a biopharmaceutical company, most recently as Commercial Director — EMEA Planning & Operations. Mr. Hennings received a bachelor's degree in applied chemistry from the University of Portsmouth.
David Ebsworth,Desiree Luthman, DDS. Dr. Luthman has served as our Vice President, Regulatory Affairs since June 2017. From 2015 to 2017, Dr. Luthman served as Senior Regulatory Director, Global Inflammation — Immunoncology Therapeutic Area at Sanofi S.A., a multinational pharmaceutical company. From 2013 to 2015, Dr. Luthman was a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb Company, a pharmaceutical company. Dr. Luthman received a doctorate in dentistry from the Karolinska Institute, Stockholm, Sweden.
Tara Rheault, Ph.D. Dr. EbsworthRheault has served as our Vice President, R&D and Global Project Management since January 2019. From August 2015 to January 2019, Dr. Rheault served as Senior Director, Strategic Drug Development at IQVIA, a multinational company serving the Non-Executive Chairmancombined industries of our board of directors since December 2014. From October 2009health information technologies and clinical research, where she helped pharmaceutical companies develop integrated commercial and R&D strategies. Prior to IQVIA, from September 2002 to August 2014,2015, Dr. EbsworthRheault served in various roles at GlaxoSmithKline, most recently as Chief Executive Officer of Vifor Pharma, based in Zürich,Clinical Leader within the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012,respiratory therapy area. Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. Dr. EbsworthRheault received a Ph.D. in industrial relationsorganic chemistry from North Dakota State University and a Master in Public Health from the University of Surrey.North Carolina.
Ken Cunningham, M.D.Peter Spargo, Ph.D. Dr. CunninghamSpargo has served as a Non-Executive Director on our board of directorsSenior Vice President, Chemistry Manufacturing and Controls since September 2015.May 2014. From January to October 2015, Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena plc and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Rishi Gupta. Mr. Gupta hasSpargo served as a Non-Executive Director on our board of directors since July 2016.  Since 2002, Mr. Gupta has held various positionsSenior Vice President, CMC at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Private Equity Partner. Mr. Gupta currently is a member of the board of directors of Avitide, Inc. and Turnstone Biologics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from the Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016.  Since March 2010, Dr. Shah has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah is also the founder and Executive Chair of Semnur Pharmaceuticals, Inc., a specialty pharmaceutical company. Dr. Shah serves as a member of the board of directors of Fortis Inc., a specialty pharmaceuticals company, Crinetics Pharmaceuticals, Inc., Soleno Therapeutics, Inc., Impel Neuropharma, Inc., and several other private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Since January 2018, Mr. Sinha has served as an Executive Partner of MPM Capital, Inc., a life sciences investment company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of AlexionSpinifex Pharmaceuticals Inc., a biotechnology company. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. Ullman has served as a Non-Executive Director on our board of directors since September 2015. Since 2016, he has served as Head of the COPD Centre at Sahlgrenska University Hospital,

Sweden.company, that was acquired by Novartis International AG. From 2013 to 2014, Dr. Ullman was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 20072011 to 2013, Dr. UllmanSpargo was ExecutiveSenior Vice President, Head of Research and DevelopmentCMC at Nycomed Pharma Private Limited, which was acquired by Takeda Pharmaceutical Company Limited.Creabilis SA, a pharmaceutical company. Dr. UllmanSpargo received a M.D.an M.A. in natural sciences and a Ph.D. in clinical pharmacologysynthetic organic chemistry from the University of Gothenburg.Cambridge University.
Family Relationships
There are no family relationships among any of the members of our board of directors and executive officers.

B. Compensation
Executive Officer Remuneration
The following table sets forth the approximate remuneration paid during the year ended December 31, 20172019, to our current executive officers.officers, who are the members of our administrative, supervisory, and management bodies.
Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation
(£)
 
Total
(£)
Jan-Anders Karlsson, Ph.D.290,000
 254,000
 1,632,055
 29,165
(3) 
 2,205,220
Chief Executive Officer         
Piers Morgan(4)
210,000
 73,500
 945,464
 12,600
(3) 
 1,241,564
Chief Financial Officer         
Kenneth Newman, M.D. 273,221
 53,581
 937,718
 21,987
(4) 
 1,286,508
Chief Medical Officer         
Peter Spargo, Ph.D. 190,000
 46,550
 641,564
 
  878,114
Senior Vice President of Chemistry, Manufacturing and Controls         
Claire Poll170,000
 59,650
 574,033
 4,517
(3) 
 808,200
Legal Counsel         
Richard Hennings119,231
 36,200
 198,258
 7,154
(3) 
 360,843
Commercial Director         
Desiree Luthman(5)
113,743
 22,884
 126,756
 
  263,383
Vice President, Regulatory Affairs         
Total1,366,195
 546,365
 5,055,849
 75,422
  7,043,832


Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation(3)
(£)
 
Total
(£)
David Zaccardelli
 
 
 
 
President and Chief Executive Officer (4)
         
Piers Morgan243,000
 59,535
 179,413
 14,580
 496,528
Chief Financial Officer         
Kathleen Rickard272,901
 263,227
 265,132
 5,307
 806,567
Chief Medical Officer         
Claire Poll214,000
 67,410
 128,151
 6,420
 415,981
General Counsel         
Total729,901
 390,172
 572,696
 26,307
 1,719,076
(1) 
Amount shown reflectsreflect bonuses awarded for achievement of performance goals, including retention bonuses in 2017.2019. 
(2) 
Amount shown represents the aggregate grant date fair value of option and restricted stockshare units awards granted in 20172019 measured using the Black Scholes model. For a description of the assumptions used in valuing these awards, see note 16 to our Annual Consolidated Financial Statements included elsewhere in this prospectus.Annual Report. 
(3) 
Amount shown represents health benefits payments and pension contributions made by us.
(4) 
Amount shown represents health benefits payments made by us. Dr. Zaccardelli was appointed as our President and Chief Executive Officer, effective as of February 1, 2020.
(5)

Mrs Luthman began her employment with us on June 12, 2017.
Executive Officer Employment Agreements
Jan-Anders Karlsson, Ph.D.David S. Zaccardelli, Pharm.D.
We entered into an employment agreement with Dr. KarlssonZaccardelli on April 30, 2012, which was subsequently amended.February 1, 2020. This agreement as amended, entitles Dr. KarlssonZaccardelli to receive an annual base salary of £290,000$750,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Annual RSUs, and a target annual bonus opportunity of 66%50% of his annual base salary. The Annual RSUs vest in equal quarterly installments during the calendar year in which the grant occurs, subject to continued employment. Pursuant to his employment agreement, Dr. Zaccardelli is also entitled to receive (i) an award of restricted stock units, subject to approval at our annual general meeting of shareholders in 2020, equal to 4% of our outstanding ordinary shares and (ii) an additional award of restricted units if the Company raises additional equity capital during fiscal year 2020, which is intended to result in Dr. Zaccardelli’s equity awards (other than the portion of his base salary (potentially extendingpayable in restricted stock units) being equal to up4% of our outstanding ordinary shares on the applicable date of issuance. These awards of restricted stock units will vest as to 132%)25% on the first anniversary of Dr. Zaccardelli’s employment commencement date and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment.
If Dr. Zaccardelli’s employment is terminated by us without "Cause" or by Dr. Zaccardelli for "Good Reason" (as each such term is defined in his offer agreement), withthen, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) 18 months (or 12 months if the amounttermination occurs after the second anniversary of any such bonus based on annual performance criteria to be agreed between usMr. Zaccardelli’s employment commencement date) of base salary continuation and Dr. Karlsson. By June 1, 2017, Dr. Karlsson was required to investcontinued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to £130,000 in our company through150% (or 100% if the purchasetermination occurs after the second anniversary of our ordinary shares. Dr. Karlsson is also entitled to participate in

a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate theZaccardelli’s employment agreement by giving the other party not less than 12 months' written notice, provided that we may terminatecommencement date) of Dr. Karlsson at any time with immediate effect for cause or by giving written notice to Dr. Karlsson that we shall pay, in lieu of notice, his basic salary during the 12 months following termination, a pro-ratedZaccardelli’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Karlsson is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares)unused paid time-off, and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. See "— Equity Compensation Arrangements" below. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Dr. Zaccardelli’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Dr. Zaccardelli’s employment commencement date.
If payments to Dr. KarlssonZaccardelli would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by

Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Karlsson'sZaccardelli’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Dr. Karlsson is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Dr. Karlsson's employment agreementZaccardelli has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Kenneth Newman,Jan-Anders Karlsson, Ph.D.
We and Dr. Karlsson entered into a separation agreement, or the Karlsson Separation Agreement, pursuant to which we and Dr. Karlsson agreed that he would no longer serve as chief executive officer, director or officer, effective as of February 2, 2020, and that his employment with us will terminate effective as of February 28, 2020, or the Separation Date. Dr. Karlsson agreed to help transition his duties to Dr. Zaccardelli. Pursuant to the Karlsson Separation Agreement, Dr. Karlsson agreed to execute a general release of claims, or the Karlsson Settlement Agreement, and he is entitled to receive cash severance payments in the aggregate amount of £982,160, payments for continued medical and life insurance benefits until the first anniversary of the Separation Date and continued pension contributions until the first anniversary of the Separation Date, subject to his compliance with the terms of the Karlsson Separation Agreement, the Karlsson Settlement Agreement and his employment agreement. Additionally, equity awards will either be vested as of the Separation Date, will be forfeited as of the Separation Date, or will be unvested as of the Separation Date and will either vest according to the applicable vesting schedule, or will be forfeited as of February 28, 2021, unless an earlier change in control event occurs, Dr. Karlsson dies or we breach the terms of the Karlsson Separation Agreement or the Karlsson Settlement Agreement.
Kathleen Rickard, M.D.
We entered into an offer letter with Dr. NewmanRickard on December 15, 2014, which was subsequently amended,13, 2018, pursuant to which heshe agreed to serve as our Chief Medical Officer, effective JanuaryFebruary 1, 2015.2019. This agreement entitles Dr. NewmanRickard to receive an annual base salary of $340,000$390,000 and a target annual bonus opportunity of 40% of hisher annual base salary, with the amount of any such bonus based on performance criteria for our company and hisher individual performance, as determined by the board of directors in its sole discretion. Dr. Newman'sRickard was also entitled to receive a sign-on bonus of $50,000, payable on the date of the offer letter, and is entitled to receive a retention bonus of $250,000, with $125,000 payable on April 1, 2019 and $125,000 payable on April 1, 2020, subject to Dr. Rickard being employed at the applicable date of payment and with the condition that each retention bonus payment is repayable if she resigns or is terminated for "Cause" within 12 months of payment. Subject to the approval of our board of directors and our share dealing policy, Dr. Rickard's offer letter also entitled himher to receive a stock option to purchase 250,00070,000 of our ordinary shares at an exercise priceADSs and to be issued 15,000 restricted stock units with respect to ADSs under the terms of £1.25 per ordinary share,the Company's equity incentive plan, half of which vests in full uponequal proportions on the earlier of (a) thefirst, second and third anniversary of the grant date or (b)and half in equal proportions on the first, second, third and fourth anniversary of the grant date, subject to accelerated vesting upon a change in control. The exercise price of control.the stock option to purchase ADSs will be determined according to the terms of the Company's equity incentive plan at the date of grant. The offer letter with Dr. NewmanRickard also provides that for so long as Dr. Newmanshe is eligible for medical continuation coverage under the Consolidated Omnibus Budget Reconciliation Act, or COBRA, from his previous employer or until we establish a health insurance plan in which he is eligibleentitled to participate Dr. Newman will receive reimbursement for monthly premiums paid for such medical continuation coveragein the Company's 401(k) plan and reimbursement for any premiums he pays for private long-term disability insurance (uphealthcare plans generally available from time to $800 per month).time to employees of the Company based in the U.S.
If Dr. Newman'sRickard's employment is terminated by us without "Cause" or by Dr. NewmanRickard for "Good Reason" (as each such term is defined in hisher offer agreement), then, subject to hisher signing and not revoking a general release of claims, heshe is entitled to receive (i) six monthsfour weeks of base salary continuation, (ii) six monthsfour weeks of continued payment of premiums for continued medical coverage under COBRA, (iii) a pro-rated portion of the annual bonus that heshe otherwise would have earned in the year of termination based on actual performance in such year and (iv) if the date of termination occurs within the six-month period immediately preceding the third anniversary of the date of grant of the stock option to purchase 250,000 of our ordinary shares, such stock option will vest in full. The offer agreement also provides that, if Dr. Newman's employment is terminated by us without Cause or by Dr. Newman for Good Reason, in either case within 12 months following a change of control, then, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) nine months of base salary continuation, (ii) nine months of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that he would otherwise have earned in the year of termination based on actual performance in such year. If payments to Dr. Newman would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Newman's receipt, on an after-tax basis, of the greater amount of the payment.
Piers Morgan
We entered into an employment agreement with Mr. Morgan on September 24, 2016, which was subsequently amended, pursuant to which he agreed to serve as our Chief Financial Officer, effective September 26, 2016. This agreement entitles Mr. Morgan to receive an annual base salary of £210,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% (potentially extending to up to 50%) of his salary, with the

amount of any such bonus based on performance criteria for our company and his individual performance, as determined by our board of directors in its sole discretion. Within 12 months after receiving any such bonus payment, Mr. Morgan is expected to invest an amount equal to 25% of the bonus (net of income tax paid by Mr. Morgan) in our company through the purchase of our ordinary shares.shares until he has invested an amount equal to £200,000. Pursuant to this agreement, on September 16, 2016, Mr. Morgan received an option to purchase 300,000 of our ordinary shares with an exercise price of £2.04 per ordinary share, which vests in equal proportions on the first, second and third anniversary of the grant date of September 26, 2016. Mr. Morgan is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.

Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Mr. Morgan at any time with immediate effect for cause or by giving written notice to Mr. Morgan that we shall pay, in lieu of notice, his basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Mr. Morgan is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares) and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Mr. Morgan would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Morgan's receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Mr. Morgan is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Mr. Morgan's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Peter Spargo, Ph.D.
We and Mr. Morgan entered into an employmenta separation agreement, with Dr. Spargo on April 1, 2014, which was subsequently amended. Pursuant to this agreement, Dr. Spargo agreed to serve as our Senior Vice President, Chemistry Manufacturing and Controls, effective April 1, 2014. This agreement, as amended, entitles Dr. Spargo to receive an annual base salary of £190,000 and a target annual bonus opportunity of up to 35% of his annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed between us and Dr. Spargo. Dr. Spargo is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Dr. Spargo at any time with immediate effect for cause or by giving written notice to Dr. Spargo that we shall pay, in lieu of notice, his basic salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Spargo is entitled to receive his full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Dr. Spargo would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Spargo's receipt, on an after-tax basis, of the greater amount of the payment. Dr. Spargo's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Claire Poll
We entered into an agreement for consulting services with Ms. Poll on March 28, 2007, or the Poll ConsultingMorgan Settlement Agreement, pursuant to which Ms. Poll provided corporate managerial services to us. We also entered into an agreement for director serviceswe and Mr. Morgan agreed that his employment with Ms. Poll on Marchus will terminate effective as of February 28, 2007 pursuant to which Ms. Poll served on our board of directors2020, or the Poll Director Services Agreement.Separation Date. The Morgan Settlement Agreement contains a general release of claims in our favour. Pursuant to a letter agreement that we entered intothe Morgan Settlement Agreement, Mr. Morgan is entitled to cash severance payments in the aggregate amount of £276,550, payments for continued life insurance benefits for six months following the Separation Date and continued pension contributions for six months following the Separation Date, subject to his compliance with Ms. Poll on September 21, 2015, Ms. Poll retired from our boardthe terms of directors and the Poll Director Services Agreement was terminated, effective September 10, 2015. The letter agreement further provided that an annual aggregate

remuneration of £70,000 payable under both the Poll ConsultingMorgan Settlement Agreement and Poll Director Services Agreement wouldhis employment agreement. Additionally, equity awards will either be paid undervested as of the Separation Date, or will be forfeited as of the Separation Date.
Claire Poll Consulting Agreement.
We entered into an employment agreement with Ms. Poll on October 1, 2016 pursuant to which Ms. Poll agreed to serve as our LegalGeneral Counsel, effective September 1, 2016. This agreement, as amended, entitles Ms. Poll to receive an annual base salary of £170,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% of her annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed to between us and Ms. Poll. Pursuant to this agreement, on September 13, 2016, Ms. Poll received an option to purchase a total of 200,000 of our ordinary shares with an exercise price of £1.89 per ordinary share, which vests in equal proportions on the first three anniversaries of the date of grant. Ms. Poll is also entitled to participate in a workplace pension scheme that we contribute to on her behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Ms. Poll at any time with immediate effect for cause or by giving written notice to Ms. Poll that we shall pay, in lieu of notice, her basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Ms. Poll is entitled to receive her full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Ms. Poll would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Ms. Poll's receipt, on an after-tax basis, of the greater amount of the payment. Ms. Poll's employment agreement also contains restrictive covenants pursuant to which she has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following her termination of employment.
Richard HenningsMark W. Hahn
We entered into an employment agreement with Mr. HenningsMark Hahn on March 27, 2017,February 1, 2020 pursuant to which he agreed to commence employment with us on February 1, 2020 and serve as our Commercial Director,Chief Financial Officer, effective March 27, 2017.1, 2020. This agreement entitles Mr. HenningsHahn to receive an annual base salary of £155,000,$500,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Hahn Annual RSUs, and a target annual bonus opportunity of up to 35%50% of his annual base salary, withsalary. The Hahn Annual RSUs vest in equal quarterly installments during the amount of any such bonus based on annual performance criteriacalendar year in which the grant occurs, subject to be agreed between us and Mr. Hennings.continued employment. Pursuant to his employment agreement, and subject to approval at our annual general meeting of shareholders in 2020, Mr. HenningsHahn is also entitled to receive (a)(i) an optionaward of restricted stock units equal to purchase a total of 160,0003% of our outstanding ordinary shares, withor the First RSU Award, and (ii) an exercise priceadditional award of restricted stock units during or prior to our first open trading window following the date

that is six months after his employment commencement date, or the Reference Date, equal to 1% of our Nasdaq listing priceoutstanding ordinary shares, or the Second RSU Award. The First RSU Award and the Second RSU Award will vest as to 25% on the first anniversary of Mr. Hahn’s employment commencement date or the Reference Date, respectively, and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment. In the event that the Company raises additional equity capital during fiscal year 2020, which is intended to result in Mr. Hahn’s equity awards (other than the portion of his base salary payable in restricted stock units) being equal to 4% of our outstanding ordinary shares on the applicable date of grant (£1.32)issuance. These awards of restricted stock units will vest as to 75% of the award, on the same vesting schedule as the First RSU Award, and (b) restricted share units withas to 25% of the award, on the same vesting schedule as the Second RSU Award, subject to continued employment.
If Mr. Hahn’s employment is terminated by us without "Cause" or by Mr. Hahn for "Good Reason" (as each such term is defined in his offer agreement), then, subject to his signing and not revoking a grant date fair valuegeneral release of approximately £40,000. Mr. Hennings is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice. The employment agreement provides that, upon a change of control, Mr. Henningsclaims, he is entitled to receive his(i) 18 months (or 12 months if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of base salary continuation and continued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to 150% (or 100% if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of Mr. Hahn’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and unused paid time-off and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Mr. Hahn’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Mr. Hahn’s employment commencement date.
If payments to Mr. HenningsHahn would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Hennings'Hahn’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of US and UK income tax rates, Mr. Hennings is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to UK taxes during the period of his employment with us. Mr. Hennings' employment agreementHahn has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Desiree Luthman, DDS.
We entered into an employment agreement with Ms Luthman on May 1, 2017, pursuant to which she agreed to serve as our Vice-President Regulatory Affairs, effective June 15, 2017. This agreement entitles Ms Luthman to receive an annual base salary of $265,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of up to 25% of her annual base salary, with the amount of any such bonus based on annual performance criteria to be agreed between us and Ms Luthman. Pursuant to her employment agreement, Ms Luthman is also entitled to receive an option to purchase a total of 20,000 of our ADSs under the terms of the

Company's equity incentive plan. The ADSs relate to 160,000 ordinary shares and the exercise price is £1.32 per ordinary share.
If Ms Luthman's employment is terminated by us without "Cause" or by Ms Luthman for "Good Reason" (as each such term is defined in her offer agreement), then, subject to her signing and not revoking a general release of claims, she is entitled to receive (i) eight weeks of base salary continuation, (ii) eight weeks of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that she otherwise would have earned in the year of termination based on actual performance in such year.
Equity Compensation Arrangements
In May 2017, we closed the initial public offering of our American Depositary Shares in the United States and a private placement of our ordinary shares in Europe, together the global offering. Prior to the global offering, we issued option grants under two option schemes, the Unapproved Share Option Scheme, or the Unapproved Scheme, adopted by our board of directors on September 18, 2006, and the EMI Option Scheme, or the EMI Scheme, adopted by our board of directors on July 24, 2012. Discussions in this section regarding the Unapproved Scheme or the EMI Scheme that refer to our board of directors include any designated committee of our board of directors. Since the adoption of the 2017 Incentive Award Plan, (as defined below),or the 2017 Incentive Plan, no further awards are being made under either the Unapproved Scheme or the EMI Scheme.
EMI Option Scheme
Under the EMI Scheme, eligible employees were granted tax‑efficient options to purchase our ordinary shares. Options were granted to eligible employees who were contracted to work for us or a qualifying subsidiary for at least 25 hours a week, or, if less than 25 hours a week, for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price and in accordance with a vesting schedule determined by our board of directors at the time of grant and expire 10 years from the date of grant.
Unapproved Share Option Scheme
Under the Unapproved Scheme, we granted non‑tax‑qualifying options to purchase our ordinary shares. Options were granted to employees, directors or consultants to acquire our ordinary shares at a price determined by our board of directors. In general, the options granted under the Unapproved Scheme are exercisable at a price and in accordance with the vesting period determined by our board of directors at the date of grant and expire 10 years from the date of grant.

Certain Transactions
Under the EMI Scheme and the Unapproved Scheme, if certain changes are made in, or events occur with respect to, our ordinary shares (including any capitalization, sub-division, reduction or other variation of our ordinary shares), any outstanding awards may be adjusted in terms of the number of ordinary shares subject to an option and the exercise price as our board of directors may determine appropriate on a fair and reasonable basis. In the event of certain corporate transactions, including a change of control, scheme of arrangement, merger, demerger or liquidation, the vesting and exercisability of all options will accelerate and, to the extent not exercised, will lapse within certain time periods defined in the applicable plan rules.
Amendment and Termination
Our board of directors may at any time amend the rules of the EMI Scheme or the Unapproved Scheme in any manner, except that no amendment may be made if, in the reasonable opinion of our board of directors, it would materially abrogate or adversely affect the subsisting rights of an option holder regarding existing options, unless the amendment is made either (i) with the written consent of the number of option holders that hold options to acquire 50% of the ordinary shares that would be delivered if all options granted and subsisting under the scheme, as applicable, were exercised; or (ii) by a resolution at a meeting of option holders passed by not less than 50% of the option holders holding options under the scheme, as applicable, who attend and vote either in person or by proxy. The EMI Scheme and the Unapproved Scheme are discretionary and may be suspended or terminated by us at any time. Suspension or termination will not affect any options granted under the schemes to the extent that they are subsisting at the date of the suspension or termination.


The following table summarizes the options that we granted to our directors and executive officers under the EMI Scheme and Unapproved Scheme in 2016:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 100,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 3.30
 February 9, 2016
 February 9, 2026
 500,000
 1.80
 August 3, 2016
 August 3, 2026
Piers Morgan300,000
 2.04
 September 26, 2016
 September 26, 2026
Kenneth Newman, M.D. 60,000
 2.00
 February 9, 2016
 February 9, 2026
 200,000
 1.80
 August 3, 2016
 August 3, 2026
Peter Spargo, Ph.D. 20,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 1.80
 August 3, 2016
 August 3, 2026
Claire Poll200,000
 1.89
 September 13, 2016
 September 13, 2026
Richard Hennings
 
 
 
Patrick Humphrey
 
 
 
David Ebsworth
 
 
 
Anders Ullman
 
 
 
Ken Cunningham
 
 
 
Rishi Gupta
 
 
 
Mahendra Shah
 
 
 
Vikas Sinha
 
 
 
Andrew Sinclair
 
 
 
2017 Incentive Plan
We have adoptedUnder the 2017 Incentive Plan, under which we may grant cash and equity‑based incentive awards to eligible service providers in order to attract, retain and motivate the persons who make important contributions to us. The material terms of the 2017 Incentive Plan are summarized below. Except where the context indicates otherwise, references hereunder to our ordinary shares shall be deemed to include a number of ADSs equal to an ordinary share.
Eligibility and Administration
Our employees, consultants and directors, and employees and consultants of our subsidiaries, are eligible to receive awards under the 2017 Incentive Plan. The 2017 Incentive Plan is administered by our board of directors, which may delegate its duties and responsibilities to one or more committees of our board of directors and/or officers (referred to collectively as the plan administrator below), subject to the limitations imposed under the 2017 Incentive Plan, stock exchange rules and other applicable laws. The plan administrator has the authority to take all actions and make all determinations under the 2017 Incentive Plan, to interpret the 2017 Incentive Plan and award agreements and to adopt, amend and repeal rules for the administration of the 2017 Incentive Plan as it deems advisable. The plan administrator also has the authority to determine which eligible service providers receive awards, grant awards, set the terms and conditions of all awards under the 2017 Incentive Plan, including any vesting and vesting acceleration provisions, and designate whether such awards will cover our ordinary shares or ADSs, subject to the conditions and limitations in the 2017 Incentive Plan.
Sub-Plan
The 2017 Incentive Plan authorizedauthorizes the administrator to establish one or more sub-plans. Immediately after the 2017 Incentive Plan had beenwas established, the administrator established a sub-plan. The sub-plan incorporated all of the terms of the 2017 Incentive Plan, except that only employees of ours (or our subsidiaries) were eligible to receive awards under the sub-plan. Awards under the sub-plan counted towards the total number of shares available for issuance under the 2017 Incentive Plan. The sub-plan is an "employees' share scheme" for the purposes of the UK Companies Act 2006.

Shares Available for Awards
An aggregate of 6,333,000 of our ordinary shares were initially made available for issuance under the 2017 Incentive Plan. The number of shares initially available for issuance will be increased by an annual increase on January 1 of each calendar year beginning in 2018 and ending in and including 2027 equal to the least of (A) 4% of our ordinary shares outstanding on the final day of the immediately preceding calendar year and (B) a smaller number of shares determined by our board of directors. As of January 1, 2020, the number of shares available for issuance was 5,499,058. Pursuant to the terms of the 2017 Incentive Plan, awards may be issued under the 2017 Incentive Plan covering ADSs in lieu of the number of our ordinary shares that such ADSs represent. No more than 5,000,000 shares may be issued under the 2017 Incentive Plan upon the exercise of incentive options. Shares issued under the 2017 Incentive Plan may be authorized but unissued shares, shares purchased on the open market, treasury shares or ADSs.

If an award under the 2017 Incentive Plan, the EMI Option Scheme, the Unapproved Share Option Scheme or any prior equity incentive plan, expires, lapses or is terminated, exchanged for cash, surrendered, repurchased, canceled without having been fully exercised or forfeited, any unused shares subject to the award will, as applicable, become or again be available for new grants under the 2017 Incentive Plan. Awards granted under the 2017 Incentive Plan in substitution for any options or other equity or equity-based awards granted by an entity before the entity's merger or consolidation with us or our acquisition of the entity's property or stock will not reduce the shares available for grant under the 2017 Incentive Plan, but will count against the maximum number of shares that may be issued upon the exercise of incentive options.
Awards
The 2017 Incentive Plan provides for the grant of options, share appreciation rights, or SARs, restricted shares, dividend equivalents, restricted share units, or RSUs, and other share or cash based awards. All awards under the 2017 Incentive Plan will be set forth in award agreements, which will detail the terms and conditions of awards, including any applicable vesting and payment terms and post-termination exercise limitations. A brief description of each award type follows.
Options and SARs.    Options provide for the purchase of our ordinary shares in the future at an exercise price set on the grant date. SARs entitle their holder, upon exercise, to receive from us an amount equal to the appreciation of the shares subject to the award between the grant date and the exercise date. The plan administrator will determine the number of shares covered by each option and SAR, the exercise price of each option and SAR and the conditions and limitations applicable to the exercise of each option and SAR.
Restricted Shares and Restricted Share Units.    Restricted shares are an award of nontransferable ordinary shares that remain forfeitable unless and until specified conditions are met and which may be subject to a purchase price. RSUs are contractual promises to deliver our ordinary shares in the future, which may also remain forfeitable unless and until specified conditions are met and may be accompanied by the right to receive the equivalent value of dividends paid on our ordinary shares prior to the delivery of the underlying shares. The plan administrator may provide that the delivery of the shares underlying RSUs will be deferred on a mandatory basis or at the election of the participant. The terms and conditions applicable to restricted shares and RSUs will be determined by the plan administrator, subject to the conditions and limitations contained in the 2017 Incentive Plan.
Other Share or Cash Based Awards.    Other share or cash based awards are awards of cash, fully-vested our ordinary shares and other awards valued wholly or partially by referring to, or otherwise based on, our ordinary shares or other property. Other share or cash based awards may be granted to participants and may also be available as a payment form in the settlement of other awards, as standalone payments and as payment in lieu of compensation to which a participant is otherwise entitled. The plan administrator will determine the terms and conditions of other share or cash based awards, which may include any purchase price, performance goal, transfer restrictions and vesting conditions.
Performance Criteria
The plan administrator may select performance criteria for an award to establish performance goals for a performance period. Performance criteria under the 2017 Incentive Plan may include, but are not limited to, the following: net earnings or losses (either before or after one or more of interest, taxes, depreciation, amortization, and non-cash equity-based compensation expense); gross or net sales or revenue or sales or revenue growth; net income (either before or after taxes) or adjusted net income; profits (including but not limited to gross profits, net profits, profit growth, net operation profit or economic profit), profit return ratios or operating margin; budget or operating earnings (either before or after taxes or before or after allocation of corporate overhead and bonus); cash flow (including operating cash flow and free cash flow or cash flow return on capital); return on assets; return on

capital or invested capital; cost of capital; return on shareholders' equity; total shareholder return; return on sales; costs, reductions in costs and cost control measures; expenses; working capital; earnings or loss per share; adjusted earnings or loss per share; price per share or dividends per share (or appreciation in or maintenance of such price or dividends); regulatory achievements or compliance; implementation, completion or attainment of objectives relating to research, development, regulatory, commercial, or strategic milestones or developments; market share; economic value or economic value added models; division, group or corporate financial goals; customer satisfaction/growth; customer service; employee satisfaction; recruitment and maintenance of personnel; human resources management; supervision of litigation and other legal matters; strategic partnerships and transactions; financial ratios (including those measuring liquidity, activity, profitability or leverage); debt levels or reductions; sales-related goals; financing and other capital raising transactions; cash on hand; acquisition activity; investment sourcing activity; and marketing initiatives, any of which may be measured in absolute terms or as compared to any incremental increase or decrease. Such performance goals also may be based solely by reference to the company's performance or the performance of a subsidiary, division, business segment or business unit of the company or a subsidiary, or based upon performance relative

to performance of other companies or upon comparisons of any of the indicators of performance relative to performance of other companies. When determining performance goals, the plan administrator may provide for exclusion of the impact of an event or occurrence which the plan administrator determines should appropriately be excluded, including, without limitation, non-recurring charges or events, acquisitions or divestitures, changes in the corporate or capital structure, events unrelated to the business or outside of the control of management, foreign exchange considerations, and legal, regulatory, tax or accounting changes.
Certain Transactions
In connection with certain corporate transactions and events affecting our ordinary shares, including a change in control, another similar corporate transaction or event, another unusual or nonrecurring transaction or event affecting us or its financial statements or change in any applicable laws or accounting principles, the plan administrator has broad discretion to take action under the 2017 Incentive Plan to prevent the dilution or enlargement of intended benefits, facilitate the transaction or event or give effect to the change in applicable laws or accounting principles. This includes canceling awards for cash or property, accelerating the vesting of awards, providing for the assumption or substitution of awards by a successor entity, adjusting the number and type of shares subject to outstanding awards and/or with respect to which awards may be granted under the 2017 Incentive Plan and replacing or terminating awards under the 2017 Incentive Plan. In addition, in the event of certain non-reciprocal transactions with our shareholders, the plan administrator will make equitable adjustments to the 2017 Incentive Plan and outstanding awards as it deems appropriate to reflect the transaction. Pursuant to the terms of their individual employment agreements, awards granted under the 2017 Incentive Plan to certain of our executives may become fully vested and exercisable upon a change in control.
Plan Amendment and Termination
Our board of directors may amend or terminate the 2017 Incentive Plan at any time; however, no amendment, other than an amendment that increases the number of shares available under the 2017 Incentive Plan, may materially and adversely affect an award outstanding under the 2017 Incentive Plan without the consent of the affected participant and shareholder approval will be obtained for any amendment to the extent necessary to comply with applicable laws. Further, the plan administrator cannot, without the approval of our shareholders, amend any outstanding option or SAR to reduce its price per share or cancel any outstanding option or SAR in exchange for cash or another award under the 2017 Incentive Plan with an exercise price per share that is less than the exercise price per share of the original option or SAR. The 2017 Incentive Plan will remain in effect until the tenth anniversary of its effective date unless earlier terminated by our board of directors. No awards may be granted under the 2017 Incentive Plan after its termination.
Non-U.S. Participants, Claw-Back Provisions, Transferability and Participant Payments
The plan administrator may modify awards granted to participants who are non-U.S. nationals or employed outside the United States or establish sub-plans or procedures to address differences in laws, rules, regulations or customs of such foreign jurisdictions. All awards will be subject to any company claw-back policy as set forth in such claw-back policy or the applicable award agreement. Except as the plan administrator may determine or provide in an award agreement, awards under the 2017 Incentive Plan are generally non-transferrable, except by will or the laws of descent and distribution, or, subject to the plan administrator's consent, pursuant to a domestic relations order, and are generally exercisable only by the participant. With regard to tax withholding obligations arising in connection with awards under the 2017 Incentive Plan, and exercise price obligations arising in connection with the exercise of options under the 2017 Incentive Plan, the plan administrator may, in its discretion, accept cash, wire

transfer or cheque,check, our ordinary shares that meet specified conditions, a promissory note, a "market sell order," such other consideration as the plan administrator deems suitable or any combination of the foregoing.
2017
2019 Grants
The following table summarizes the options that we granted to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 1,385,598
 1.32
 April 26, 2017 April 26, 2027
Piers Morgan802,690
 1.32
 April 26, 2017 April 26, 2027
Kenneth Newman, M.D. 796,128
 1.32
 April 26, 2017 April 26, 2027
Peter Spargo, Ph.D. 544,681
 1.32
 April 26, 2017 April 26, 2027
Claire Poll487,347
 1.32
 April 26, 2017 April 26, 2027
Richard Hennings160,000
 1.32
 April 26, 2017 April 26, 2027
Desiree Luthman160,000
 1.32
 April 26, 2017 April 26, 2027
Vikas Sinha120,384
 1.32
 April 26, 2017 April 26, 2027
David Ebsworth
 
  
Anders Ullman
 
  
Ken Cunningham
 
  
Rishi Gupta
 
  
Mahendra Shah
 
  
Andrew Sinclair
 
  
NameOrdinary Shares Underlying Options
 
Exercise
Price
Per Share (£)

 
Grant
Date
 
Expiration
Date
        
Kathleen Rickard560,000
 0.57
 April 01, 2019 March 29, 2029
Piers Morgan359,430
 0.57
 April 01, 2019 March 29, 2029
Claire Poll256,735
 0.57
 April 01, 2019 March 29, 2029

The following table summarizes the RSUs that we granted on April 1, 2019, to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Restricted
Share Units Granted

Jan-Anders Karlsson, Ph.D., M.D. Kathleen Rickard346,395120,000
Piers Morgan200,669
Kenneth Newman, M.D. 199,016
Peter Spargo, Ph.D. 136,16893,247
Claire Poll121,835
Richard Hennings48,153
David Ebsworth
Anders Ullman
Ken Cunningham
Rishi Gupta
Mahendra Shah
Vikas Sinha
Andrew Sinclair66,603

The options and RSUs (other than those granted to Messrs. Hennings and Sinha) vest as to 50% of the ordinary shares in three substantially equal annual installments following the grant date and as to 50% of the ordinary shares in four substantially equal annual installments following the grant date. The options and RSUs granted to

Messrs. Hennings and Sinha vest in three substantially equal annual installments following the grant date. This description relates to the options and RSUs granted in connection with the global offering.
Non-Employee Directors Remuneration
The following table sets forth the remuneration paid during 20172019 to our current non-employee directors:
Name
Annual
Fees
(£)
 
Total
(£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Patrick Humphrey8,750
 8,750
NameFees (£)
 Total (£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Martin Edwards22,500
 22,500
Non-Employee Director Service Contracts
The remuneration of the non-executive directors is determined by our board as a whole, based on a review of current practices in other companies. We have entered into service contracts with our directors for their services, which are subject to a three-month termination period.
Pension, Retirement or Similar Benefits
We operate a defined contribution pension scheme which is available to all UK employees. The total amount set aside or accrued by us to provide pension, retirement or similar benefits to our current directors and our executive officers with respect to 20172019 was £41,671,£30,000, which represents contributions made by us in 20172019 in respect of a defined contribution scheme in which Dr. Karlsson, Ms. Poll, Mr. HenningsMs. Rickard, and Mr. Morgan participated.

C. Board Practices
Composition of our Board of Directors
Our Board is comprised of eightnine members. In accordance with our Articles of Association, one third of our directors retire from office at every annual general meeting of shareholders. However, if the number of directors serving on our Board is not divisible by three, then the number nearest but not exceeding 33.3% shall retire from office at each annual general meeting of shareholders. Retiring directors are eligible for re-election and, if no other director is elected to fill his or her position and the director is willing, shall be re-elected by default.

The expiration of the current terms of the members of our board of directors and the period each member has served in that term are as follows:

NameYear Current Term BeganNext year of re-election
Jan-Anders Karlsson, Ph.D.20122020
David Ebsworth, Ph.D.20142018
Ken Cunningham, M.D.20152019
Rishi Gupta20162021
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162019
Vikas Sinha20162021
Anders Ullman, M.D., Ph.D.20152018

NameYear Current Term BeganNext year of re-election
David Zaccardelli, Pharma.D.20202020
David Ebsworth, Ph.D.20182021
Ken Cunningham, M.D.20152022
Rishi Gupta20162020
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162022
Vikas Sinha20162020
Anders Ullman, M.D., Ph.D.20182021
Martin Edwards, M.D.20192021
There are no arrangements or understanding between us and any of the members of our board of directors providing for benefits upon termination of their service.

Committees of our Board of Directors
Our Board has three standing committees: an Audit and Risk Committee, a Remuneration Committee and a Nomination and Governance Committee.
Audit and Risk Committee of the Board
The Audit and Risk Committee, which consists of Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair, , assists the Board in overseeing our accounting and financial reporting processes and the audits of our financial statements. Mrstatements and monitoring UK Governance Code compliance and business risk. Mr. Sinha serves as Chairman of the Audit and Risk Committee. The Audit and Risk Committee consists of members of our Board who are financially literate and are also considered to be "audit committee financial experts" as defined by applicable SEC rules and have the requisite financial sophistication as defined under the applicable Nasdaq rules and regulations. Our Board has determined that all of the members of the Audit and Risk Committee satisfy the "independence" requirements set forth in Rule 10A-3 under the Exchange Act. The Audit and Risk Committee will beis governed by a charter that complies with Nasdaq rules.
The Audit and Risk Committee's responsibilities include:include, among other things:
recommending the appointment of the independent auditor to the general meeting of shareholders; 
the appointment, compensation, retention and oversight of the independent auditor; 
pre-approving the audit services and non-audit services to be provided by ourthe independent auditor before the auditor is engaged to render such services;
evaluating the independent auditor's qualifications, performance and independence, and presenting its conclusions to our Board on at least an annual basis; 
reviewing and discussing with the executive officers, our Board and the independent auditor our financial statements and our financial reporting process; and 
considering and recommending to our Board whether the audited financial statements be approved.approved; and
monitoring our review and mitigation of corporate and operational risk.
The Audit and Risk Committee will meetmeets as often as one or more members of the Committee deem necessary, but in any event willmust meet at least four times per year. The Audit and Risk Committee willmust meet at least once per year with our independent auditor, without our executive officers being present.

Remuneration Committee of the Board
The Remuneration Committee, which consists of Dr. Ken Cunningham, Dr. David Ebsworth and Rishi Gupta, assists the Board in determining directors’ and senior executives’executive officers’ compensation. Dr Cunningham serves as Chairman of the Committee.
The Remuneration Committee's responsibilities include:include, among other things:
identifying, reviewing and proposing policies relevant to the compensation of the Company’s directors and executive officers; 
evaluating each executive officer's performance in light of such policies and reporting to the Board; 
analyzing the possible outcomes of the variable remuneration components and how they may affect the remuneration of the executive officers; 
recommending any equity long-term incentive component of each executive officer's compensation in line with the remuneration policy and reviewing our executive officer compensation and benefits policies generally;
appointing and setting the terms of referenceengagement for any remuneration consultants who advise the Committee and obtain benchmarking data with respect to the directors' and executive officers’ compensation; and 
reviewing and assessing risks arising from our compensation policies and practices.
Nomination and Governance Committee of the Board
The Nomination and Governance Committee, which consists of Dr. David Ebsworth, Dr. Mahendra Shah and Dr. Anders Ullman, assists our Board in identifying individuals qualified to become executive and non-executive directors of our Company consistent with criteria established by our Board and in developing our corporate governance principles. Dr Ebsworth serves as Chairman of the Committee.
The Nomination and Governance Committee's responsibilities include:include, among other things:

reviewing and evaluating the structure, size and composition of our Board and making recommendations with regard to any adjustments considered necessary; 
drawing up selection criteria and appointment procedures for Board members; 
identifying and nominating, for the approval of our Board, candidates to fill vacancies on theBoardthe Board and its corresponding committees; 
keeping under review the leadership needs of the Company, both executive and non-executive, and planning the orderly succession of such appointments; and
assessing the functioning of our Board and individual members and reporting the results of such assessment to the Board.

D. Employees
As of December 31, 2017, 20162019, 2018 and 2015,2017, we had 24, 15, and 15 employees, respectively, of which 13, 11, and 9 employees, respectively. All of our employees10 were based in the United Kingdom, except that, asrespectively, and the remainder of December 31, 2017, 2016 and 2015, we had one to four employeeswhich were based outside of the United Kingdom. All of our employees were engaged in either administrative or research and development functions. None of our employees are covered by a collective bargaining agreement.
E. Share Ownership
For information regarding the share ownership of members of our board and executive officers and arrangements involving our employees in our share capital, see “ItemItem 6.B. Compensation, Item 7.A. Major Shareholders”Shareholders and “ItemItem 7.B. Related Party Transactions.


ITEM 7: MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
A. MAJOR SHAREHOLDERS
The following table sets forth information relating to the beneficial ownership of our ordinary shares as of December 31, 20172019, by:
each person, or group of affiliated persons, that beneficially owns 3% or more of our outstanding ordinary shares;shares (including ordinary shares in the form of our ADSs);
each member of our board of directors and each of our other executive officers; and
all board members and executive officers as a group.
The number of ordinary shares beneficially owned by each entity, person, board member or executive officer is determined in accordance with the rules of the SEC, and the information is not necessarily indicative of beneficial ownership for any other purpose. Under such rules, beneficial ownership includes any shares over which the individual has sole or shared voting power or investment power as well as any shares that the individual has the right to acquire within 60 days of February 27, 2018December 31, 2019, through the exercise of any option, warrant or other right. Except as otherwise indicated, and subject to applicable community property laws, the persons named in the table have sole voting and investment power with respect to all ordinary shares held by that person.
The percentage of ordinary shares beneficially owned is computed on the basis of 105,017,400105,326,638 of our ordinary shares outstanding as of February 1, 2018.December 31, 2019. Ordinary shares that a person has the right to acquire within 60 days of December 31, 20172019 are deemed outstanding for purposes of computing the percentage ownership of the person holding such rights, but are not deemed outstanding for purposes of computing the percentage ownership of any other person, except with respect to the percentage ownership of all board members and executive officers as a group. As of February 1, 2018, 55,931,336December 31, 2019, 56,045,857 ordinary shares, representing 53% of our issued and outstanding ordinary shares (including ordinary shares in the form of our ADSs), were held by 1415 U.S. record holders. Unless otherwise indicated below, the address for each beneficial owner listed is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE UK.



   
 
Number of
Shares Beneficially Owned

Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113%
Vivo Capital affiliates (2)
13,811,58413%
OrbiMed Private Investments VI, LP (3)
11,871,11411%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01911%
Abingworth Bioventures VI, LP (5)
8,619,7748%
venBio Select Advisor (6)
7,000,0007%
Biodiscovery 4 FCPI (7)
6,652,3986%
Foresite (8)
5,000,0005%
Tekla Capital affiliates (9)
5,296,8455%
Aisling Capital IV, LP (10)
4,138,6434%
Arix Bioscience Holdings Ltd affiliates (11)
3,916,4934%
Canaccord Genuity Group, Inc.(12)

3,255,7923%
Executive Officers and Directors:  
Jan-Anders Karlsson, Ph.D.(13)
749,1421%
Piers Morgan (14)
100,000—%
Kenneth Newman, M.D.(15)
356,6651%
Claire Poll (16)
236,663—%
Richard Hennings—%
Peter Spargo, Ph. D.(17)
139,663—%
Ken Cunningham, M.D. —%
David Ebsworth, Ph.D.(18)
140,703—%
Rishi Gupta—%
Mahendrah Shah, Ph.D.—%
Andrew Sinclair, Ph.D.(19)
—%
Vikas Sinha (20)
22,222—%
Anders Ullman, Ph.D. —%
All executive officers and directors as a group (13 persons)1,745,0582%

 Number of Shares Beneficially Owned
Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113.22%
Vivo Capital affiliates (2)
13,811,58412.88%
OrbiMed Private Investments VI, LP (3)
11,871,11211.07%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01910.76%
Abingworth Bioventures VI, LP (5)
8,619,7658.08%
venBio Select Advisor (6)
7,000,0006.65%
Polar Capital Holdings plc (7)
5,368,8195.09%
Tekla Capital affiliates (8)
5,296,8454.99%
Aisling Capital IV, LP (9)
4,138,6433.91%
Executive Officers and Directors:  
David Zaccardelli, Pharm.D
Piers Morgan (10)
1,712,3621.60%
Kathleen Rickard, M.D.
Claire Poll (11)
799,141*
Ken Cunningham, M.D. 
Martin Edwards
David Ebsworth, Ph.D.(12)
400,303*
Rishi Gupta
Mahendra Shah, Ph.D.
Andrew Sinclair, Ph.D.
Vikas Sinha (13)
102,478*
Anders Ullman, Ph.D. 
All executive officers and directors as a group (12 persons)3,014,2842.83%
* Less than 1%.  
(1) 
Consists of (a) 12,389,985 ordinary shares held directly by Novo A/S, or Novo, and (b) warrants to purchase 1,769,626 ordinary shares. The board of directors of Novo A/S, or the Novo Board, has shared investment and voting control over the securities held by Novo and may exercise such control only with the support of a majority of the Novo Board. As such, no individual member of the Novo Board is deemed to hold any beneficial ownership or reportable pecuniary interest in the securities held by Novo. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D filed with the SEC on June 6, 2017.April 2, 2019. Novo's mailing address is Tuborg Havnevej 19, Hellerup, G7 2900, Denmark.Denmark
(2) 
Consists of (a) 2,388,728 ordinary shares held directly by Vivo Ventures Fund VI, L.P., or Vivo VI, of which 1,126,760 are held in the form of ADSs, (b) warrants to purchase 370,871 ordinary shares held directly by Vivo VI, (c) warrants to purchase 2,717 ordinary shares held directly by Vivo Ventures VI Affiliates Fund, L.P., or Vivo Affiliates VI, (d) 9,554,917 ordinary shares held directly by Vivo Ventures Fund VII L.P., or Vivo VII, of which 4,507,040 are held in the form of ADSs, (e) warrants to purchase 1,462,477 ordinary shares held directly by Vivo VII, (f)  warrants to purchase 31,874 ordinary shares held directly by Vivo Ventures VII Affiliates Fund, L.P., or Vivo Affiliates VII. Vivo Ventures VI, LLC , or Vivo Ventures VI, is the sole general partner of Vivo VI and Vivo Affiliates VI. Vivo Ventures VII, LLC, or Vivo Ventures VII, is the sole general partner of Vivo VII and Vivo Affiliates VII. Vivo Ventures VI and Vivo Ventures VII disclaim beneficial ownership of all shares held by Vivo VI, Vivo Affiliates VI, Vivo VII and Vivo Affiliates VII except to the extent of any pecuniary interest therein. The managing members of Vivo Ventures VI are Drs. Albert Cha, Edgar Engleman and Frank Kung, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo VI and Vivo Affiliates VI. The managing members of Vivo Ventures Vll are Drs. Albert Cha, Edgar Engleman, Frank Kung, Chen Yu and Mr. Shan Fu, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo Vll and Vivo Affiliates Vll. Mahendra Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.

Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.
(3) 
Consists of (a) 10,003,17510,003,174 ordinary shares held directly by OrbiMed Private Investments VI, LP, or OrbiMedOPI VI, of which 5,333,32810,003,168 are held in the form of ADSs and (b) warrants to purchase 1,867,9391,867,938 ordinary shares are held directly by OrbiMedOPI VI. OrbiMed Capital GP VI LLC, or GP VI, is the general partner of OrbiMedOPI VI. OrbiMed Advisors LLC, or OrbiMed Advisors, ispursuant to its authority as the sole managing member of GP VI. Samuel D. Isaly isVI, the managing membersole general partner of and owner of a controlling interest in OrbiMed Advisors. By virtue of such relationships, GPOPI VI, OrbiMed Advisors and Mr. Isaly may be deemed to have voting and investment power with respect toindirectly beneficially own the ordinary shares held by OrbiMedOPI VI. GP VI, andpursuant to its authority as a resultgeneral partner or OPI VI, may be deemed to have beneficial ownership of such shares. Rishi Gupta, an employee of OrbiMedindirectly beneficially own the ordinary shares held by OPI VI. As a result, Advisors is a member of our Board of Directors. Each ofand GP VI OrbiMedshare the power to direct the vote and to direct the disposition of the ordinary shares held by OPI VI. Advisors Mr. Isalyexercises this investment and Mr. Guptavoting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the ordinary shares held by OrbiMed VI, except to the extent of its or his pecuniary interest therein, if any.OPI VI. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D/A filed with the SEC on May 25, 2017. OrbiMed Advisors'January 26, 2018. The mailing address of OPI VI, GP VI and Advisors is 601 Lexington Avenue, 54th Floor, New York, NY 10022.

(4) 
Consists of (a) 9,757,393 ordinary shares held directly by Growth Equity Opportunities Fund IV, LLC, or GEO, of which 5,333,328 are held in the form of ADSs, and (c) warrants to purchase 1,769,626 ordinary shares held directly by GEO. New Enterprise Associates 15, L.P., or NEA 15, is the sole member of GEO. NEA Partners 15, L.P., NEA Partners 15, is the sole general partner of NEA 15. NEA 15 GP, LLC, or NEA 15 LLC, is the sole general partner of NEA Partners 15. Peter J. Barris, Forest Baskett, Anthony Florence, Jr., Krishnu Kolluri, David M. Mott, Scott D. Sandell, Peter Sonsini, Jon Sakoda, Ravia Viswanthan and Henry Weller are the managers of NEA 15 LLC. NEA 15, NEA Partners 15, NEA 15 LLC and the managers of NEA 15 LLC share voting and dispositive power with regard to the securities held by GEO. Each of NEA 15, NEA Partners 15 and NEA 15 LLC as well as each of the managers of NEA 15 LLC disclaims beneficial ownership of all shares held by GEO except to the extent of their actual pecuniary interest therein. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 8, 2017. GEO's mailing address is 1954 Greenspring Drive, Suite 600, Timonium, MD 21093-4135.
(5) 
Consists of (a) 7,215,5537,215,544 ordinary shares held directly by Abingworth Bioventures VI, LP, or Abingworth VI, all of which 3,705,000 are held in the form of ADSs, and (b) warrants to purchase 1,404,221 ordinary shares held directly by Abingworth VI. Abingworth Bioventures VI GP LP, or Abingworth GP VI, serves as general partner of Abingworth VI. Abingworth General Partner VI LLP, or Abingworth General Partner VI, serves as general partner of Abingworth GP VI. Abingworth General Partner VI has delegated to Abingworth LLP, all investment and dispositive power over the securities held by Abingworth VI. An Abingworth LLP investment committee comprised of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris approves investment and voting decisions of Abingworth VI by a majority vote, and no individual member has the sole control or voting power over the securities held by Abingworth VI. Abingworth GP VI, Abingworth General Partner VI, Abingworth LLP and each of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris disclaim beneficial ownership of securities held by Abingworth VI, except to the extent, if any of their pecuniary interest therein. Andrew Sinclair is a Partner and Portfolio Manager at Abingworth LLP and a member of our board of directors. Dr. Sinclair does not have voting or dispositive power over any of the securities held by Abingworth Vl. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 9, 2017. Abingworth VI's mailing address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(6) 
Consists of 7,000,000 ordinary shares held in the form of ADSs by VenBio Select Advisor. This information is based on information known to us. The mailing address for VenBio Select Advisor is 120 W 45th St #2802, New York, NY 10036
(7) 
Consists of (a) 5,767,5855,300,000 ordinary shares of which (a) 4,500,000 ordinary shares are held directly by Polar Biotechnology Fund, or PBF, (b) 800,000 are held by PBF in the form of ADSs, by Biodiscovery 4 FCPI, or Biodiscovery, and (b)(c) warrants to purchase 884,81368,819 ordinary shares held directly by Biodiscovery.PBF. PBF and PCGH are managed by Polar Capital Holdings plc, or PCH. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 5, 2017. The mailing address for Biodiscovery is 47 rue du Faubourg Saint-Honoré75401 Cedex 08 Paris FranceSeptember 9, 2019 and information known to us.
(8)
Consists of 5,000,000 ordinary shares held in the form of ADSs by Foresight Capital Management. This information is based on information known to us. The mailing address for Foresight Capital Management is [600 Montgomery Street, Suite 4500, San Francisco, CA 94111
(9) 
Consists of (a) 4,412,031 ordinary shares held directly by Tekla World Healthcare Fund, or Tekla World, of which  2,200,000 are held in the form of ADSs, (b) warrants to purchase 513,192 purchase ordinary shares held directly by Tekla World, and (c) warrants to purchase 371,622 ordinary shares held directly by Tekla Life. Tekla Capital Management LLC, or Tekla Capital, is an investment adviser registered pursuant to Section 203 of the Investment Advisers Act of 1940 and is the investment adviser of Tekla World and Tekla Life, each of which is a registered investment company pursuant to Section 8 of the Investment Company Act of 1940. Each of Tekla Capital and Daniel R. Omstead, through his control of Tekla Capital, has sole power to dispose of the shares beneficially owned by Tekla World and Tekla Life. Neither Tekla Capital nor Daniel R. Omstead has the sole power to vote or direct the vote of the shares beneficially owned by Tekla World and Tekla Life, which power resides in each fund's Board of Trustees. Tekla Capital carries out the voting of the shares under written guidelines established by each fund's Board of Trustees. Beneficial ownership information is based on information known to us and a Schedule 13G filed with the Securities and Exchange CommissionSEC on February 13, 2017.12, 2019. Tekla Capital's mailing address is 100 Federal Street, 19th Floor, Boston, MA 02110.
(10)(9) 
Consists of (a) 3,548,768 ordinary shares held directly by Aisling Capital IV, LP, or Aisling, of which 2,074,080 are held in the form of ADSs, and (b) warrants to purchase 589,875 ordinary shares held directly by Aisling. This information is based on information known to us and a TR-1 provided to us on June 6, 2017. The mailing address of Aisling is Aisling Capital, 888 Seventh Avenue, 12th Floor, New York, NY 1010610106.
(10)
Consists of (a) 147,009 ordinary shares, (b) 238,420 ordinary shares issuable from restricted stock units that will vest within 60 days of December 31, 2019 and (c) 1,326,933 options to purchase ordinary shares that are, or will be within 60 days of December 31, 2019, immediately exercisable.
(11) 
Consists of (a) 1,290,352 ordinary shares held directly by Arix Bioscience Holdings Ltd, or Arix, (b) warrants to purchase 516,141 ordinary shares held directly by Arix and (c) 2,110,000 ordinary shares held directly by Wales Life Sciences Investment Fund, or WLSIF. Arthurian Life Sciences Ltd, or Arthurian, is the general partner of WLSIF and a wholly owned subsidiary of Arix. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on August 3, 2016 and January 3, 2017. Arix's mailing address is 20 Berkeley Square, London W1J 6EQ, United Kingdom.

(12)
Canaccord Genuity Group Inc. is the beneficial owner of an aggregate of 3,255,792 ordinary shares held directly by (a) Hargreave Hale which holds 2,941,250130,575 ordinary shares and (b) Canaccord Genuity Wealth Management which holds 314,542 ordinary shares. This information is based on information known to us. The mailing address for Canaccord Genuity Group Inc. is 88 Wood Street, London, UK, EC2V 7QR.
(13)
Consists of (a) 89,150 ordinary shares and (b) 659,992668,566 options to purchase ordinary shares that are, or will be immediately exercisable within 60 days of February 1, 2018.December 31, 2019, immediately exercisable.
(14)
Consists of 100,000 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(15)
Consists of 356,665 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(16)(12) 
Consists of (a) 95,000 ordinary shares and (b) 141,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(17)
Consists of (a) 13,000 ordinary shares and (b) 126,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(18)
Consists of (a) 135,787395,387 ordinary shares and (b) warrants to purchase 4,916 ordinary shares.
(19)
Dr. Sinclair is a Partner and Portfolio Manager at Abingworth LLP. Dr. Sinclair does not have voting or dispositive power over any of the shares directly held by Abingworth Vl referenced in footnote (6) above. Dr. Sinclair's business address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(20)(13) 
Consists of (a) 22,222 ordinary shares and (b) options to purchase 80,256 ordinary shares that are or will be immediately exercisable withinwithint 60 days of February 1, 2018.December 31, 2019.
To our knowledge, and other than changesas provided in percentage ownership as a result of the shares issued in connectiontable above, our other filings with our initial public offering of our ADSs,the SEC and this Annual Report, there has been no significant change in the percentage ownership held by theany major shareholders listed aboveshareholder since January 1, 2017, except as discussed under the heading “Related Party Transactions.”2017.
The major shareholders listed above do not have voting rights with respect to their ordinary shares that are different from the voting rights of other holders of our ordinary shares.
ParticipationB. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2019 or currently in the Global Offering
In April 2017, the holders of 3% or moreeffect with any member of our common shares participated in the global offering as follows:board of directors and executive officers.
InvestorNumber of ADSs or shares subscribed forAggregate purchase price
Novo A/S740,740 ADSsUSD 9,999,990
Vivo Capital affiliates
563,380 ADSsUSD 7,605,630
OrbiMed Private Investments VI, LP
666,666 ADSsUSD 8,999,991
New Enterprise Associates, LP666,666 ADSsUSD 8,999,991
Abingworth Bioventures VI, LP
463,125 ADSsUSD 6,252,188
venBio Select Advisor
875,000 ADSsUSD 11,812,500
Biodiscovery 4 FCPI
444,444 ADSsUSD 5,999,994
Foresite600,000 ADSsUSD 8,100,000
Tekla Capital affiliates275,000 ADSsUSD 3,712,500
Aisling Capital IV, LP259,260 ADSsUSD 3,500,010
Arix Bioscience Holdings Ltd affiliates170,228 ADSsUSD 2,298,078
Canaccord Genuity Group, Inc.1,255,001 sharesGBP 1,656,601
Shareholder Private Placement
In May 2017, we issued and sold 13,373 ordinary shares to our Chairman, Dr. David Ebsworth, for aggregate gross proceeds to us of £18,000.

Registration Rights Agreement
In July 2016, we entered into a registration rights agreement that providedprovides certain demand registration rights to Abingworth Bioventures VI, LP, or Abingworth, Growth Equity Opportunities Fund IV, LLC, OrbiMed Private Investments VI, LP, or OrbiMed, and Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., and Vivo Ventures Fund VI Affiliates Fund, L.P., or collectively, Vivo Capital, with respect to the ordinary shares and any ADSs held by them.
Demand Registration Rights
At any time, the holders of at least a majority of the registrable securities as defined in the registration rights agreement have the right to demand that we effect an underwritten public offering of their registrable securities pursuant to an effective registration statement under the Securities Act. These registration rights are subject to specified conditions and limitations including the right of the underwriters, if any, to limit the number of shares included in any such registration under specified circumstances. Upon such a request, we are required to use commercially reasonable efforts to effect the public offering.
Expenses of Registration
We will pay all expenses relating to any registration under the registration rights agreement, other than selling commission, discounts or brokerage fees and stock transfer taxes, subject to specified conditions and limitations.
Termination of Registration Rights
The registration rights granted under the registration rights agreement shall terminate upon the earlier to occur of (i) the fifth anniversary of the closing of the global offering and (ii) the date on which there are no registrable securities remaining pursuant to the registration rights agreement.
Relationship Agreements
In June 2016, we entered into relationship agreements with each of Vivo Capital, OrbiMed, and Abingworth, pursuant to which our relationship with such parties is regulated and their influence over our corporate actions and activities, and the outcome of general matters pertaining to us, are limited. Pursuant to the relationship agreements, we also agreed to appoint representatives designated by Vivo Capital, OrbiMed, and Abingworth to our board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair, respectively. The appointment rights under the relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of our issued ordinary shares, or (ii) our ordinary shares ceasing to be admitted to AIM. In addition, each of the relationship agreements will automatically terminate upon the first date which Vivo Capital, OrbiMed, or Abingworth, as applicable, cease to have certain rights and obligations under the relationship agreements.
Indemnification Agreements
To the extent permitted by the U.K. Companies Act 2006, we are empowered to indemnify our directors against any liability they incur by reason of their directorship. We have also entered into a deed of indemnity with each of our directors and executive officers and this has been in place since March 31, 2017.officers. In addition to such indemnification, we provide our directors and executive officers with directors’ and officers’ liability insurance.
B. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2017 or currently in effect with any member of our board of directors and executive officers.
Agreements with Our Executive Officers and Directors
We have entered into employment agreements with certain of our executive officers and service agreements with our non‑employee directors. See Item 6B6.B. Compensation and noteNote 8 of our Annual Consolidated Financial Statements included elsewhere in this Annual Report.
Other Transactions
At December 31, 2019, there was a receivable of £nil (2018: £126 thousand) due from one director and two key management personnel relating to tax due on RSUs that vested in the financial statements.
Participation in U.S. Initial Public Offering
As partyear ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. The Company notes that the transaction that generated this receivable was potentially a breach of Section 402 of the global offering our Chairman, Dr. David Ebsworth, purchased 13,373 shares at £1.32 per share generating gross proceedsSarbanes-Oxley Act of £18 thousand. The transaction was on2002. See Item 3.D. Risk Factors-Risks Related to Our ADSs and Ordinary Shares. We may have inadvertently violated Section 13(k) of the same termsExchange Act (implementing Section 402 of the Sarbanes-Oxley Act of 2002) and may be subject to sanctions as third parties.a result.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
C. Interests of Experts and Counsel
Not applicable.


ITEM 8: FINANCIAL INFORMATION
A. Consolidated Statements and Other Financial Information.
Consolidated Financial Statements
Our consolidated financial statements are appended at the end of this Annual Report, starting at page F-1, and are incorporated herein by reference.
Legal Proceedings
We are not subject to any material legal proceedings.
Dividend Distribution Policy
We have never paid or declared any cash dividends on our ordinary shares, and we do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Under English law, among other things, we may only pay dividends if we have sufficient distributable reserves (on a non consolidatednon-consolidated basis), which are our accumulated realized profits that have not been previously distributed or capitalized less our accumulated realized losses, so far as such losses have not been previously written off in a reduction or reorganization of capital.
B. Significant Changes.
There have been no significant changes since December 31, 2017.

2019.

ITEM 9: THE OFFER AND THE LISTING
A. Offer and Listing Details.
Our Ordinary Shares are listed on AIM, a market of the London Stock Exchange, under the symbol “VRP”, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017. The initial public offering price of our ADSs was $13.50 per ADS. The following table sets forth for the periods indicated the high and low sales prices per common share as reported on The Nasdaq Global Market:
   
 Price Per Common ADS ($)
 HighLow
Year Ended December 31,  
2017 (from April 27 through December 31)16.9510.80
Quarter Ended  
Second Quarter 2017 (beginning April 27)16.2611.40
Third Quarter 201716.9511.54
Fourth Quarter 201715.7510.80
First Quarter 2018 (through February 16)13.2511.69
Month of  
August 201712.7011.80
September 201716.9511.96
October 201715.7513.35
November 201714.1310.80
December 201712.1011.30
January 201813.2512.21
February 2018 (through February 16)12.8011.693

Our ordinary shares have been trading on AIM, a market operated by the London Stock Exchange plc, under the symbol “VRP” since September 2006. The following table sets forth, for the periods indicated, the reported high and low closing sale prices of our ordinary shares on AIM in pounds sterling.

    
 Price Per Share (£)
 High Low
Year Ended December 31,   
20132.58 0.88
20142.18 0.53
20153.36 0.60
20162.16 1.19
20171.69 1.04
Quarter Ended   
First Quarter 20162.16 1.19
Second Quarter 20161.86 1.41
Third Quarter 20161.73 1.48
Fourth Quarter 20162.06 1.55
First Quarter 20171.69 1.25
Second Quarter 20171.61 1.11
Third Quarter 20171.53 1.12
Fourth Quarter 20171.48 1.04
First Quarter 2018 (through February 16)1.21 1.02
Month of   
August 20171.24 1.16
September 20171.53 1.12
October 20171.48 1.33
November 20171.34 1.06
December 20171.11 1.04
January 20181.21 1.06
February 2018 (through February 16)1.21 1.02

.
B. Plan of Distribution.
Not applicable.
C. Markets.
Our Ordinary Shares have beenare listed on the AIM, a market of the London Stock Exchange, since September 19, 2006, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017.Market.
D. Selling Shareholders.
Not applicable.
E. Dilution.
Not applicable.

F. Expenses of the Issue.
Not applicable.


ITEM 10: ADDITIONAL INFORMATION
A. Share Capital.
Not applicable.
B. Memorandum and Articles of Association.

A copy of our Articles of Association is attached as Exhibit 1.1 to this Annual Report. The information called for by this Item is set forth in responseExhibit 2.5 to this item is contained under the caption “Description of Share Capital and Articles of Association” in our final prospectus filed with the Securities and Exchange Commission on April 28, 2017Annual Report and is incorporated herein by reference.reference into this Annual Report.
C. Material Contracts.
TheIn addition to the contracts described elsewhere in this Annual Report, the following are summaries of each material contract, other than material contracts entered into in the ordinary course of business, to which we are a party for the two years preceding the date of this Annual Report.
Underwriting Agreement
On April 26, 2017, we entered into an underwriting agreement with Jefferies LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the underwriters, on April 26, 2017, for the initial public offering of 5,768,000 American Depositary Shares in the United States and the private placement of 1,255,001 ordinary shares in Europe. Pursuant to the underwriting agreement, we paid underwriting discounts and commissions of $0.9450 per ADS and £0.0924 per ordinary shares. The underwriting agreement contained customary representations and warranties. We also agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect of such liabilities.
Employment Agreements
We have entered into employment agreements with our executive officers. Information on the employment agreements may be found in this Annual Report under “Item 6.B. Compensation-Executive Officer Remuneration-Executive Officer Employment Agreements” and is incorporated herein by reference.
Indemnification Agreements
We have entered into indemnification agreements with our executive officers and board members. Information on the indemnification agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Indemnification Agreements” and is incorporated herein by reference.
Registration Rights Agreements
We have entered into registration rights agreement with certain of our existing shareholders. Information on the registration rights agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Registration Rights Agreement” and is incorporated herein by reference.
Relationship Agreements
We have entered into relationship agreements with certain of our existing shareholders. Information on these relationship agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Relationship Agreements” and is incorporated herein by reference.
Lease
Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, where we lease office space. We also lease office space in White Plains,New York , New York. The office space in these two locations is held under four leases that terminate between August 2018 and Januaryin 2020 and 2021. We pay £0.5 million per year under these leases we pay £0.3m per year.leases. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.

D. Exchange Controls.
There are no governmental laws, decrees, regulations or other legislation in the United Kingdom that may affect the import or export of capital, including the availability of cash and cash equivalents for use by us, or that may affect the remittance of dividends, interest, or other payments by us to non‑resident holders of our ordinary shares or ADSs, other than withholding tax requirements. There is no limitation imposed by English law or in our Articles of Association on the right of non‑residents to hold or vote shares.
E. Taxation
The following is a description of thecertain material U.S. federal income tax consequences to the U.S. Holders described below of owning and disposing of our ordinary shares or ADSs. It is not a comprehensive description of all tax considerations that may be relevant to a particular person's decision to acquire securities. This discussion applies only to a U.S. Holder that holds our ordinary shares or ADSs as a capital asset for tax purposes (generally, property held for investment). In addition, it does not describe all of the tax consequences that may be relevant in light of a U.S. Holder's particular circumstances, including state and local tax consequences, estate tax consequences, alternative minimum tax consequences, the potential application of the Medicare contribution tax, and tax consequences applicable to U.S. Holders subject to special rules, such as:
banks, insurance companies, and certain other financial institutions;
U.S. expatriates and certain former citizens or long-term residents of the United States;
dealers or traders in securities who use a mark-to-market method of tax accounting;
persons holding our ordinary shares or ADSs as part of a hedging transaction, "straddle," wash sale, conversion transaction or integrated transaction or persons entering into a constructive sale with respect to ordinary shares or ADSs;
persons whose "functional currency" for U.S. federal income tax purposes is not the U.S. dollar;
brokers, dealers or traders in securities, commodities or currencies;
tax-exempt entities or government organizations;
S corporations, partnerships, or other entities or arrangements classified as partnerships for U.S. federal income tax purposes;
regulated investment companies or real estate investment trusts;
persons who acquired our ordinary shares or ADSs pursuant to the exercise of any employee stock option or otherwise as compensation;

persons subject to special tax accounting rules as a result of any item of gross income with respect to ordinary shares or ADSs being taken into account in an applicable financial statement;
persons that own or are deemed to own ten percent or more of our ordinary shares by vote or value; and
persons holding our ordinary shares or ADSs in connection with a trade or business, permanent establishment, or fixed base outside the United States.
If an entity that is classified as a partnership for U.S. federal income tax purposes holds our ordinary shares or ADSs, the U.S. federal income tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. Partnerships holding our ordinary shares or ADSs and partners in such partnerships are encouraged to consult their tax advisers as to the particular U.S. federal income tax consequences of holding and disposing of our ordinary shares or ADSs.
The discussion is based on the Internal Revenue Code of 1986, as amended or the Code,(the "Code"), administrative pronouncements, judicial decisions, final, temporary and proposed Treasury Regulations, and the income tax treaty between the United Kingdom and the United States (the "Treaty") all as of the date hereof, changes to any of which may affect the tax consequences described herein — possibly with retroactive effect.
A "U.S. Holder" is a holder who, for U.S. federal income tax purposes, is a beneficial owner of our ordinary shares or ADSs who is eligible for the benefits of the Treaty and is:

(1)a citizen or individual resident of the United States;
(2)a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States, any state therein or the District of Columbia; or
(3)an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source.
U.S. Holders are encouraged to consult their tax advisers concerning the U.S. federal, state, local and foreign tax consequences of owning and disposing of our ordinary shares or ADSs in their particular circumstances.
The discussion below assumes that the representations contained in the deposit agreement with respect to our ADSs are true and that the obligations in the deposit agreement and any related agreement will be complied with in accordance with their terms. Generally, a holder of an ADS should be treated for U.S. federal income tax purposes as holding the ordinary shares represented by the ADS. Accordingly, no gain or loss will be recognized upon an exchange of ADSs for ordinary shares. The U.S. Treasury has expressed concerns that intermediaries in the chain of ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the beneficial ownership of the underlying security. Accordingly the creditability of foreign taxes, if any, as described below, could be affected by actions taken by intermediaries in the chain of ownership between the holders of our ADSs and our Companycompany if as a result of such actions the holders of our ADSs are not properly treated as beneficial owners of the underlying ordinary shares.
Passive Foreign Investment Company ("PFIC") Rules
Because we dodid not expect to earn revenue from our business operations during the current taxable year ended December 31, 2019, and because our sole source of income currently is interest on bank accounts held by us, we believe we will likely be classified as a PFIC for the current taxable year.year ended December 31, 2019. A non-U.S. corporation will be classified as a PFIC for any taxable year in which, after applying certain look-through rules, either:
at least 75% of its gross income is passive income (such as interest income); or
at least 50% of its gross assets (determined on the basis of a quarterly average) is attributable to assets that produce passive income or are held for the production of passive income.
We will be treated as owning our proportionate share of the assets and earning our proportionate share of the income of any other corporation, the equity of which we own, directly or indirectly, 25% or more (by value).
A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year. As a result, our PFIC status may change. While it is possible we may not meet the PFIC test described above once we start generating substantial revenue from our business operations, the analysis is factual and it is possible we may continue to be a PFIC for future years. In particular, the total value of our assets for purposes of the asset test generally will be calculated using the market price of theour ordinary shares or ADSs, which may fluctuate considerably. Fluctuations in the market price of theour ordinary shares or ADSs may result in our being a PFIC for any taxable year.
If we are classified as a PFIC in any year with respect to which a U.S. Holder owns theour ordinary shares or ADSs, we will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding years during which the U.S. Holder owns theour ordinary shares or ADSs, regardless of whether we continue to meet the tests

described above unless (1) we cease to be a PFIC and the U.S. Holder has made a "deemed sale" election under the PFIC rules, or (2) the U.S. Holder makes a QEF Election (defined below) with respect to taxable years in which we are a PFIC. If such election is made, youthe U.S. Holder will be deemed to have sold theour ordinary shares or ADSs you holdit holds at their fair market value and any gain from such deemed sale would be subject to the rules described below. After the deemed sale election, so long as we do not become a PFIC in a subsequent taxable year, yourthe ordinary shares or ADSs with respect to which such election was made will not be treated as shares in a PFIC and youthe U.S. Holder will not be subject to the rules described below with respect to any "excess distribution" you receiveit receives from us or any gain from an actual sale or other disposition of theour ordinary shares or ADSs. U.S. Holders should consult their tax advisors as to the possibility and consequences of making a deemed sale election if we cease to be a PFIC and such election becomes available.
For each taxable year we are treated as a PFIC with respect to you, youa U.S. Holder, such holder will be subject to special tax rules with respect to any "excess distribution" you receiveit receives and any gain you recognizeit recognizes from a sale or other disposition (including a pledge) of our ordinary shares or ADSs, unless you makesuch holder makes a QEF Election or a mark-to-market election as discussed below. Distributions you receivethat a U.S. Holder receives in a taxable year that are greater than 125% of the average annual distributions you received during the shorter of the three preceding taxable years or yoursuch holder's holding period for theout ordinary shares or ADSs will be treated as an excess distribution. Under these special tax rules:

the excess distribution or gain will be allocated ratably over yoursuch holder's holding period for theour ordinary shares or ADSs;
the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we became a PFIC, will be treated as ordinary income; and
the amount allocated to each other year will be subject to the highest tax rate in effect for that year and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.
The tax liability for amounts allocated to years prior to the year of disposition or "excess distribution" cannot be offset by any net operating losses for such years, and gains (but not losses) realized on the sale of theour ordinary shares or ADSs cannot be treated as capital, even if you hold the U.S. Holder holds our ordinary shares or ADSs as capital assets.
If we are a PFIC, a U.S. Holder will generally be subject to similar rules with respect to distributions we receive from, and our dispositions of the stock of, any of our direct or indirect subsidiaries that also are PFICs, as if such distributions were indirectly received by, and/or dispositions were indirectly carried out by, such U.S. Holder. U.S. Holders should consult their tax advisors regarding the application of the PFIC rules to our subsidiaries.
U.S. Holders can avoid the interest charge on excess distributions or gain relating to theour ordinary shares or ADSs by making a mark-to-market election with respect to theour ordinary shares or ADSs, provided that theour ordinary shares or ADSs are "marketable." OrdinaryOur ordinary shares or ADSs will be marketable if they are "regularly traded" on certain U.S. stock exchanges or on a foreign stock exchange that meets certain conditions. For these purposes, theour ordinary shares or ADSs will be considered regularly traded during any calendar year during which they are traded, other than in de minimis quantities, on at least 15 days during each calendar quarterquarter. Any trades that have as their principal purpose meeting this requirement will be disregarded. Our ADSs will beare listed on the Nasdaq Global Market and our ordinary shares are traded on AIM, a market of the London Stock Exchange, each of, which is a qualified exchange for these purposes. Consequently, if our ADSs remain listed on the Nasdaq Global Market or our ordinary shares remain listed on AIM and, in each case, are regularly traded, and you are a holder of ADSs, we expect the mark-to-market election would be available to youU.S. Holders of such ordinary shares or ADSs if we are a PFIC (which we believe likely for the current year). Each U.S. Holder should consult its tax advisor as to the whether a mark-to-market election is available or advisable with respect to theour ordinary shares or ADSs.
A U.S. Holder that makes a mark-to-market election must include in ordinary income for each year an amount equal to the excess, if any, of the fair market value of theour ordinary shares or ADSs at the close of the taxable year over the U.S. Holder's adjusted tax basis in theour ordinary shares or ADSs. An electing holder may also claim an ordinary loss deduction for the excess, if any, of the U.S. Holder's adjusted basis in theour ordinary shares or ADSs over the fair market value of theour ordinary shares or ADSs at the close of the taxable year, but this deduction is allowable only to the extent of any net mark-to-market gains for prior years. Gains from an actual sale or other disposition of theour ordinary shares or ADSs will be treated as ordinary income, and any losses incurred on a sale or other disposition of theour ordinary shares or ADSs will be treated as an ordinary loss to the extent of any net mark-to-market gains for prior years. Once made, the election cannot be revoked without the consent of the IRSU.S. Internal Revenue Service (the "IRS"), unless theour ordinary shares or ADSs cease to be marketable.

However, a mark-to-market election generally cannot be made for equity interests in any lower-tier PFICs that we own, unless shares of such lower-tier PFIC are themselves "marketable." We believe that
Rhinopharma Limited will likely be treated as a lower-tier PFIC. As a result, even if a U.S. Holder validly makes a mark-to-market election with respect to our ordinary shares or ADSs, the U.S. Holder may continue to be subject to the PFIC rules (described above) with respect to its indirect interest in any of our investments that are treated as an equity interest in a PFIC for U.S. federal income tax purposes. U.S. Holders should consult their tax advisors as to the availability and desirability of a mark-to-market election, as well as the impact of such election on interests in any lower-tier PFICs.
Alternatively, a U.S. Holder can make an election, if we provide the necessary information, to treat us and each lower-tier PFIC as a qualified electing fund (a "QEF Election") in the first taxable year we (and our relevant subsidiaries) are treated as a PFIC with respect to the holder. If such election remains in place while we and any lower-tier PFIC subsidiaries are PFICs, we and our subsidiaries will not be treated as PFICs with respect to such U.S. Holder when we cease to be a PFIC. A U.S. Holder must make the QEF Election for each PFIC by attaching a separate properly completed IRS Form 8621 for each PFIC to the holder's timely filed U.S. federal income tax return. We will provide the information necessary for a U.S. Holder to make a QEF Election with respect to us and will cause each lower-tier PFIC which we control to provide such information with respect to such lower-tier PFIC.

If a U.S. Holder makes a QEF Election with respect to a PFIC, the holder will be currently taxable on its pro rata share of the PFIC's ordinary earnings and net capital gain (at ordinary income and capital gain rates, respectively) for each taxable year that the entity is classified as a PFIC. If a U.S. Holder makes a QEF Election with respect to us, any distributions paid by us out of our earnings and profits that were previously included in the holder's income under the QEF Election would not be taxable to the holder. A U.S. Holder will increase its tax basis in itsour ordinary shares or ADSs by an amount equal to any income included under the QEF Election and will decrease its tax basis by any amount distributed on theour ordinary shares or ADSs that is not included in the holder's income. In addition, a U.S. Holder will recognize capital gain or loss on the disposition of our ordinary shares or ADSs in an amount equal to the difference between the amount realized and the holder's adjusted tax basis in theour ordinary shares or ADSs. U.S. Holders should note that if they make QEF Elections with respect to us and lower-tier PFICs, they may be required to pay U.S. federal income tax with respect to theirour ordinary shares or ADSs for any taxable year significantly in excess of any cash distributions received on theour ordinary shares or ADSs for such taxable year. U.S. Holders should consult their tax advisors regarding making QEF Elections in their particular circumstances.
Unless otherwise provided by the U.S. Treasury, each U.S. shareholderHolder of a PFIC is required to file an annual report containing such information as the U.S. Treasury may require. A U.S. Holder's failure to file the annual report will cause the statute of limitations for such U.S. Holder's U.S. federal income tax return to remain open with regard to the items required to be included in such report until three years after the U.S. Holder files the annual report, and, unless such failure is due to reasonable cause and not willful neglect, the statute of limitations for the U.S. Holder's entire U.S. federal income tax return will remain open during such period. U.S. Holders should consult their tax advisors regarding the requirements of filing such information returns under these rules.
Taxation of Distributions
Subject to the discussion above under "Passive Foreign Investment Company ("PFIC") Rules," distributions paid on our ordinary shares or ADSs, other than certain pro rata distributions of ordinary shares or ADSs, will generally be treated as dividends to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Because we do not calculate our earnings and profits under U.S. federal income tax principles, we expect that distributions generally will be reported to U.S. Holders as dividends. Subject to applicable limitations, dividends paid to certain non-corporate U.S. Holders may be taxable at preferential rates applicable to "qualified dividend income." However, the qualified dividend income treatment may not apply if we are treated as a PFIC with respect to the U.S. Holder. The amount of a dividend will include any amounts withheld by us in respect of United Kingdom income taxes. The amount of the dividend will be treated as foreign-source dividend income to U.S. Holders and will not be eligible for the dividends-received deduction generally available to U.S. corporations under the Code. Dividends will generally be included in a U.S. Holder's income on the date of the U.S. Holder's receipt of the dividend. The amount of any dividend income paid in foreign currency will be the U.S. dollar amount calculated by reference to the exchange rate in effect on the date of actual or constructive receipt, regardless of whether the payment is in fact converted into U.S. dollars. If the dividend is converted into U.S. dollars on the date of receipt, a U.S. Holder should not be required to recognize foreign currency gain or loss in respect of the dividend income. A U.S. Holder may have foreign currency gain or loss if the dividend is converted into U.S. dollars after the date of receipt. Such gain or loss would generally be treated as U.S.-source ordinary income or loss. The amount of any distribution of

property other than cash (and other than certain pro rata distributions of ordinary shares or ADSs or rights to acquire ordinary shares or ADSs) will be the fair market value of such property on the date of distribution.
For foreign tax credit purposes, our dividends will generally be treated as passive category income. Subject to applicable limitations, some of which vary depending upon the U.S. Holder's particular circumstances, any United Kingdom income taxes withheld from dividends on our ordinary shares or ADSs at a rate not exceeding the rate provided by the Treaty will be creditable against the U.S. Holder's U.S. federal income tax liability. The rules governing foreign tax credits are complex and U.S. Holders should consult their tax advisers regarding the creditability of foreign taxes in their particular circumstances. In lieu of claiming a foreign tax credit, U.S. Holders may, at their election, deduct foreign taxes, including any United Kingdom income tax, in computing their taxable income, subject to generally applicable limitations under U.S. law. An election to deduct foreign taxes instead of claiming foreign tax credits applies to all foreign taxes paid or accrued in the taxable year.

Sale or Other Taxable Disposition of Our Ordinary Shares and ADSs
Subject to the discussion above under "Passive Foreign Investment ("PFIC") Company Rules," gain or loss realized on the sale or other taxable disposition of our ordinary shares or ADSs will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder held theour ordinary shares or ADSs for more than one year. The amount of the gain or loss will equal the difference between the U.S. Holder's tax basis in theour ordinary shares or ADSs disposed of and the amount realized on the disposition, in each case as determined in U.S. dollars. This gain or loss will generally be U.S.-source gain or loss for foreign tax credit purposes. The deductibility of capital losses is subject to limitations.
If the consideration received by a U.S. Holder is not paid in U.S. dollars, the amount realized will be the U.S. dollar value of the payment received determined by reference to the spot rate of exchange on the date of the sale or other disposition. However, if theour ordinary shares or ADSs are treated as traded on an "established securities market" and youthe U.S. Holder is are either a cash basis taxpayer or an accrual basis taxpayer that has made a special election (which must be applied consistently from year to year and cannot be changed without the consent of the IRS), yousuch holder will determine the U.S. dollar value of the amount realized in a non-U.S. dollar currency by translating the amount received at the spot rate of exchange on the settlement date of the sale. If you area U.S. Holder is an accrual basis taxpayer that is not eligible to or does not elect to determine the amount realized using the spot rate on the settlement date, yousuch holder will recognize foreign currency gain or loss to the extent of any difference between the U.S. dollar amount realized on the date of sale or disposition and the U.S. dollar value of the currency received at the spot rate on the settlement date.
WE STRONGLY URGE YOUINVESTORS IN OUR ORDINARY SHARES OR ADSs TO CONSULT YOURTHEIR TAX ADVISORADVISORS REGARDING THE IMPACT OF OUR PFIC STATUS ON YOURTHEIR INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs AS WELL AS THE APPLICATION OF THE PFIC RULES TO YOURSUCH INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs.
Information Reporting and Backup Withholding
Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries generally are subject to information reporting, and may be subject to backup withholding, unless (i) the U.S. Holder is a corporation or other exempt recipient or (ii) in the case of backup withholding, the U.S. Holder provides a correct taxpayer identification number and certifies that it is not subject to backup withholding.
Backup withholding is not an additional tax. The amount of any backup withholding from a payment to a U.S. Holder will be allowed as a credit against the holder's U.S. federal income tax liability and may entitle it to a refund, provided that the required information is timely furnished to the IRS.
Information with Respect to Foreign Financial Assets
Certain U.S. Holders who are individuals (and, under proposed regulations, certain entities) may be required to report information relating to theour ordinary shares or ADSs, subject to certain exceptions (including an exception for ordinary shares or ADSs held in accounts maintained by certain U.S. financial institutions). U.S. Holders should consult their tax advisers regarding their reporting obligations with respect to their ownership and disposition of theour ordinary shares or ADSs.
F. Dividends and Paying Agents.
Not applicable.

G. Statement by Experts.
Not applicable.
H. Documents on Display.
We maintain a corporate website at www.veronapharma.com. We make available free of charge on our website our Reports on Form 6-K, and we intend make available our Annual Reports on Form 20-F, as soon as reasonably practicable afterand any other reports that we electronically file such material with, or furnish it to,with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included our website address in this Annual Report solely as an inactive textual reference.

You may also review a copy of this Annual Report, including exhibits and any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SEC’s Public Reference Room in Room 1580, 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website (www.sec.gov)at www.sec.gov that contains reports, proxy and information statements and other information regarding registrantsissuers that file electronically, such as us, with the SEC.
References made in this Annual Report to any contract or certain other document of Verona Pharma plc are not necessarily complete and you should refer to the exhibits attached or incorporated by reference into this Annual Report for copies of the actual contract or document.
I. Subsidiary Information.
Not applicable.



ITEM 11: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to a variety of financial risks. Our overall risk management program seeks to minimize potential adverse effects of these financial risks on our financial performance.
Credit Risk
We consider all of our material counterparties to be creditworthy. We consider the credit risk for each of our counterparties to be low and do not have a significant concentration of credit risk at any of our counterparties.
Liquidity Risk
We manage our liquidity risk by maintaining adequate cash reserves at banking facilities, and by continuously monitoring our cash forecasts, our actual cash flows and by matching the maturity profiles of financial assets and liabilities.
Currency Risk
Foreign currency risk reflects the risk that the value of a financial commitment or recognized asset or liability will fluctuate due to changes in foreign currency rates. Our financial position, as expressed in pounds sterling, are exposed to movements in foreign exchange rates against the U.S. dollar and the Euro. Our main trading currencies are pounds sterling, the U.S. dollar and the Euro. We are exposed to foreign currency risk as a result of operating transactions and the translation forof foreign bank accounts. We monitor our exposure to foreign exchange risk. We have not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
Interest rate Risk
Interest rate risk reflects the risk that the value of a financial instrument will fluctuate as a result of a change in market interest rates on classes of financial assets and financial liabilities. We do not hold any derivative instruments to manage interest rate risk.
See note 3.1 of the financial statements for quantitative disclosures about market risk.


ITEM 12: DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A. Debt Securities.
Not applicable.
B. Warrants and Rights.
Not applicable.
C. Other Securities.
Not applicable.

D. American Depositary Shares.

Fees and Charges
Holders of our ADSs are required to pay the following fees under the terms of the deposit agreement:

 
Service Fee
Issuance of ADSs (e.g., an issuance of ADS upon a deposit of ordinary shares or upon a change in the ADS(s)‑to‑ordinary shares ratio), excluding ADS issuances as a result of distributions of ordinary shares Up to $0.05 per ADS issued
Cancellation of ADSs (e.g., a cancellation of ADSs for delivery of deposited property or upon a change in the ADS(s)‑to‑ordinary shares ratio) Up to $0.05 per ADS cancelled
Distribution of cash dividends or other cash distributions (e.g., upon a sale of rights and other entitlements) Up to $0.05 per ADS held
Distribution of ADSs pursuant to (i) stock dividends or other free stock distributions, or (ii) exercise of rights to purchase additional ADSs Up to $0.05 per ADS held
Distribution of securities other than ADSs or rights to purchase additional ADSs (e.g., upon a spin‑off) Up to $0.05 per ADS held
ADS Services Up to $0.05 per ADS held on the applicable record date(s) established by the depositary
Holders of our ADSs are also responsible to pay certain charges such as:
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) the issuance of ADSs, and (ii) the cancellation of ADSs are charged to the person to whom the ADSs are issued (in the case of ADS issuances) and to the person whose ADSs are cancelled (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs being issued or the DTC participant(s) holding the ADSs being cancelled, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to the account of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participants as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges holders of our ADSs may be required to pay may vary over time and may be changed by us and by the depositary. Holders of our ADSs will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADRADS program, by making available a portion of the ADS fees charged in respect of the ADRADS program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.


PART II
ITEM 13: DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
None.

ITEM 14: MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
A.    Not applicableNone
B.    Not applicableNone
C.    Not applicableNone
D.    Not applicableNone

E.    Use of Proceeds.
In May 2017, we completed the initial public offering of our American Depositary SharesADSs in the United States and a private placement of our ordinary shares in Europe, or the global offering. In the global offering we issued and sold 6,501,738 ADSs, including 733,738 ADSs issued and sold upon the partial exercises ofby the underwriters pursuant to their overallotment option to purchase additional ADSs, at a public offering price of $13.50 per ADS, and 1,225,001 ordinary shares at an offering price of £1.32 per share.
The offer and sale of all of the ADSs and ordinary shares in the global offering was registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124), which was declared effective by the SEC on April 26, 2017, and a registration statement on Form F-1 to register additional securities (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, or, together, the Registration Statement. Under the Registration Statement, we registered 5,768,000 ADSs, 1,225,001 ordinary shares, and 865,200 ADSs issuable upon exercise of the underwriters’ option to purchase additional ADSs at a public offering price of $13.50 per ADS and £1.32 per ordinary share, for a registered aggregate offering price of approximately $89.9 million including the 733,738 ADSs issued and sold upon the partial exercises of the underwriters’ option to purchase additional ADSs. Following the sale of the ADSs and ordinary shares in connection with the closing of the global offering, the offering terminated. The offering commenced on April 18, 2017 and did not terminate until the sale of all of the shares offered. Jefferies LLC and Stifel, Nicholaus & Company, Incorporated acted as joint book-running managers of the offering, and Wedbush Securities Inc. and SunTrust Robinson Humphrey, Inc. acted as co-managers of the offering.
In addition, a further 254,099 shares were issued to private investors for proceeds of $0.4m.
We received aggregate gross proceeds from the global offering of approximately $90.3$89.9 million, orand aggregate net proceeds of approximately $80.8 million after deducting underwriting discounts and commissions of approximately $6.3 million and offering expenses of approximately $3.2 million. No payments for such expenses were made directly or indirectly to (i) any of our officers, members of our board of directors, or their associates, (ii) any persons owning 10% or more of any class of our equity securities or (iii) any of our affiliates.
The offer and sale of the ADSs and ordinary shares in the global offering were registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124) to register ordinary shares, which was declared effective by the SEC on April 26, 2017, a registration statement on Form F-1 to register additional ordinary shares (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, and a registration statement on Form F-6 (File No. 333-217353) to register the ADSs, which was declared effective by the SEC on April 26, 2017, or, collectively, the Registration Statements. Under the Registration Statements, we registered an aggregate offering price of approximately $91.7 million of ordinary shares and 100,000,000 ADSs for a registered aggregate offering price of $5.0 million.
There has been no material change in our planned use of the net proceeds from the global offering as described in our final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act with the SEC on April 28, 2017.

ITEM 15: CONTROLS AND PROCEDURES
Limitations on Effectiveness of Controls and Procedures
In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.
Disclosure Controls and Procedures.
Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended)Act), as of the end of the period covered by this Annual Report on Form 20-F.Report. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date,December 31, 2019, our disclosure controls and procedures were effective ateffective.
Management’s Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, as such term is defined in Rule 13a-15(f) under the reasonable assurance level asExchange Act.
Our management conducted an assessment of December 31, 2017.

This annual report does not include a reportthe effectiveness of management’s assessment regardingour internal control over financial reporting or an attestation reportbased on the criteria set forth in “Internal Control – Integrated Framework (2013)” issued by the Committee of Sponsoring Organizations of the company’s registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.Treadway Commission.

Material Weaknesses in Internal Control Over Financial Reporting.
This Annual ReportBased on Form 20-F does not include a reportthis assessment, our management concluded that, as of management’s assessment regardingDecember 31, 2019, our internal control over financial reporting orwas effective.
Attestation Report of the Registered Public Accounting Firm
This Annual Report does not include an attestation report of our registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.
In connection with the preparation for the initial public offering of our ADSs, we reassessed our critical accounting policies to ensure compliance with IFRS. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma Ltd. in September 2006. We concluded that a lack of adequate controls surrounding our historic accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standardsan exemption established by the U.S. Public Accounting Oversight Board
We have remediated this material weakness by the hiring of our chief financial officer in September 2016 and enhancing our financial reporting team’s technical accounting knowledge associated with the accounting rulesJOBS Act for business combinations. However, we cannot be certain that these efforts will prevent future material weaknesses or significant deficiencies from occurring.Review updated remediation language.“emerging growth companies.”
Changes in Internal Control Overover Financial Reporting.Reporting
Other than as discussed above, there has beenThere were no changechanges in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the period covered by this annual reportAnnual Report that hashave materially affected, or isare reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A: AUDIT COMMITTEE FINANCIAL EXPERT
Our board of directors has determined that Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair each qualify as an audit committee financial expert as defined by the rules of the Securities and Exchange CommissionSEC and has the requisite financial sophistication under the applicable rules and regulations of Nasdaq. Mr. Sinha and Drs. Ebsworth and Sinclair are each independent as such term is defined in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, and under the listing standards of Nasdaq.


ITEM 16B: CODE OF ETHICS
Code of Business Conduct and Ethics
We have adopted a Code of Business Conduct and Ethics, or the Code of Conduct, that is applicable to all of our employees, executive officers, including our principal executive, principal financial and principal accounting officers, members of our board of directors, and consultants. The Code of Conduct is available on our website at www.veronapharma.com. We will provide a copy of our Code of Conduct to any person without charge upon written request sent to:
Verona Pharma plc
3 More London Riverside
London SE1 2RE
United Kingdom
Attn: Secretary
We intend to satisfy the disclosure requirement under Item 16B(e)16B(d) and (e) of Form 20-F regarding amendment to, or waiver from, a provision of our Code of Conduct, as well as Nasdaq’s requirement to disclose waivers with respect to directors and executive officers, by posting such information onin the "Investors" section of our website at the address and location specified above.www.veronapharma.com. Our executive officers are responsible for administering the Code of Conduct. Amendment, alteration or termination of the Code of Conduct requires the approval of our board of directors.


ITEM 16C: PRINCIPAL ACCOUNTANT FEES AND SERVICES

The following table summarizes the fees of PricewaterhouseCoopers LLP, our independent registered public accounting firm, billed to us for each of the last two fiscal years for audit and other services:
Fee Category2016
 2017
 £'000s
 £'000s
Audit Fees80
 117
Audit-Related Fees525
 333
Other Services
 150
Total Fees605
 600
Fee Category2019
 2018
 £'000s
 £'000s
Audit Fees148
 114
Audit-Related Fees52
 68
Other Services67
 86
Total Fees267
 268
Audit-Related Fees
For the yearyears ended December 31, 2017,2019 and 2018, audit related services include fees for quarterly interim reviews, advice on compliance with Sarbanes-Oxley legislation and assurance on information included in the Company's U.S. registration statement for the April 2017 initial public offering in the United States (the"Global Offering"). For the year ended December 31, 2017, an amount of £256 thousand in relation to these services was offset against share premium on completion of the Global Offering.
For the year ended December 31, 2016, audit related services include assurance reporting on historical financial information included in the Company's U.S. registration statement for the Global Offering. As at December 31, 2016 an amount of £466 thousand in relation to these services was booked in deferred IPO costs that was offset against share premium on completion of the Global Offering.reviews.
Tax Fees
We did not incur any tax fees for services from PricewaterhouseCoopers LLP in 20162019 or 2017.2018.
All Other Fees
We did not incur anyFor the year ended December 31, 2019 other fees in 2017 or 2016.related to advice relating to fund raising.
For the year ended December 31, 2018, other fees related to a review of the Company’s F-3 shelf registration statement.
Audit Committee Pre-Approval Policy and Procedures
The Audit Committee has adopted a policy, or the Pre-Approval Policy, which sets forth the procedures and conditions pursuant to which audit and non-audit services proposed to be performed by the independent auditor may be pre-approved. The Pre-Approval Policy generally provides that we will not engage PricewaterhouseCoopers LLP to render any audit, audit-related, tax or permissible non-audit service unless the service is either (i) explicitly approved by the Audit Committee, or specific pre-approval, or (ii) entered into pursuant to the pre-approval policies and procedures described in the Pre-Approval Policy, or general pre-approval. Unless a type of service to be provided by PricewaterhouseCoopers LLP has received general pre-approval under the Pre-Approval Policy, it requires specific pre-approval by the Audit Committee or by a designated member of the Audit Committee to whom the committee has delegated the authority to grant pre-approvals. Any proposed services exceeding pre-approved cost levels or budgeted amounts will also require specific pre-approval. For both types of pre-approval, the Audit Committee will consider whether such services are consistent with the SEC’s rules on auditor independence. The Audit Committee will also consider whether the independent auditor is best positioned to provide the most effective and efficient service, for reasons such as its familiarity with our business, people, culture, accounting systems, risk profile and other factors, and whether the service might enhance our ability to manage or control risk or improve audit quality. All such factors will be considered as a whole, and no one factor should necessarily be determinative. The Audit Committee may also review and generally pre-approve the services (and related fee levels or budgeted amounts) that may be provided by PricewaterhouseCoopers LLP without first obtaining specific pre-approval from the Audit Committee. The Audit Committee may revise the list of general pre-approved services from time to time, based on subsequent determinations.


ITEM 16D: EXEMPTIONS FORM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None
ITEM 16E: PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

None

ITEMS 16F: CHANGE IN REGISTRANT'S CERTIFYING ACCOUNTANT
There has been no change in our independent accountant during our two most recent fiscal years.


ITEM 16G: CORPORATE GOVERNANCE
As a “foreign private issuer,” as defined by the SEC, we are permitted to follow home country corporate governance practices, instead of certain corporate governance practices required by Nasdaq for domestic issuers.issuers, with certain exceptions. While we voluntarily follow most Nasdaq corporate governance rules, we follow U.K. corporate governance practices in lieu of Nasdaq corporate governance rules as follows:
We do not follow Nasdaq Rule 5620(c) regarding quorum requirements applicable to meetings of shareholders. Such quorum requirements are not required under English law. In accordance with generally accepted business practice, our articles of association provide alternative quorum requirements that are generally applicable to meetings of shareholders.
We do not follow Nasdaq Rule 5605(b)(2), which requires that independent directors regularly meet in executive session, where only independent directors are present. Our independent directors may choose to meet in executive session at their discretion.

ITEM 16H: MINE SAFETY DISCLOSURE

None

PART III
ITEM 17: FINANCIAL STATEMENTS

We have elected to provide financial statements pursuant to Item 18.

ITEM 18: FINANCIAL STATEMENTS

The financial statements required under this Item 18 are filed as part of this Annual Report beginning on page F-1.F-1.The audit report of PricewaterhouseCoopers LLP, independent registered public accounting firm, is included herein preceding the financial statements.


ITEM 19: EXHIBITS

The Exhibits listed in the Exhibit Index at the end of this Annual Report are filed as Exhibits to this Annual Report.


   Incorporated by Reference to Filings Indicated
       
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
       
       
F-1 333-2171243.1
4/3/2017 
       
20-F001-380672.1
2/27/2018 
       
20-F001-380672.2
2/27/2018 
       
F-1 333-2171244.3
4/3/2017 
       
F-1 333-2171244.4
4/3/2017 
       
    *
F-1 333-21712410.1
4/3/2017 
       
F-1 333-21712410.2
4/3/2017 
       

20-F001-380674.3
3/19/2019 
       
20-F001-380674.3.1
3/19/2019 
       
20-F001-380674.3.2
3/19/2019 
       
    *
       
    *
       

    
*

       
    
*

       
F-1 333-21712410.4
4/3/2017 
       
F-1 333-21712410.5
4/3/2017 
       
20-F001-380674.6
2/27/2018 
       

    *
       
20-F001-380674.3.2
3/19/2019 
       
F-1 333-21712410.8
4/3/2017 
       
F-1 333-21712410.9
4/3/2017 
       
F-1/A 333-21712410.11.1
4/18/2017 
       
F-1/A 333-21712410.11.2
4/18/2017 
       
F-1 333-21712410.12
4/3/2017 
       
F-1 333-21712410.13
4/3/2017 
       
F-1 333-21712410.14
4/3/2017 
       
F-1 333-21712421.1
4/3/2017 
       
    *
       
    *
       
    **
       
    **
       
    *

   Incorporated by Reference to Filings Indicated
    
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
No.
DateFurnished

1.1Articles of Association, as amended and as currently in effectF-1 333-2171243.1
4/3/2017 
       
Deposit Agreement     *
       
2.2Form of American Depositary Receipt (included in Exhibit 2.1)     *
       
2.3Form of Warrant issued to each of the investors named in Schedule A theretoF-1 333-2171244.3
4/3/2017 
       
2.4Warrant Instrument issued to NPlus1 Singer LLPF-1 333-2171244.4
4/3/2017 
       
4.1Registration Rights Agreement, dated July 29, 2016, by and among Verona Pharma plc and the investors set forth thereinF-1 333-21712410.1
4/3/2017 
       
4.2†Intellectual Property Assignment and Licence Agreement between Vernalis Development Limited and Rhinopharma Limited, as predecessor to Verona Pharma plc, dated February 7, 2005F-1 333-21712410.2
4/3/2017 
       
4.3Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 and related Renewal Agreements dated September 30, 2015 and October 1, 2016F-1 333-21712410.3
4/3/2017 
       
4.3.1Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.1
4/3/2017 
       
4.3.2Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.2
4/3/2017 
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 (exhibit 4.3)     *
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016 (exhibits 4.3.1 and 4.3.2)     *
       
4.4#EMI Option SchemeF-1 333-21712410.4
4/3/2017 
       

4.5#Unapproved Share Option Scheme, as amendedF-1 333-21712410.5
4/3/2017 
       
2017 Incentive Award Plan and forms of award agreements thereunder    *
       
4.7#Employment Agreement, dated April 30, 2012, as amended, between Verona Pharma plc and Jan-Anders KarlssonF-1 333-21712410.6
4/3/2017 
       
4.8#Offer Letter, dated December 15, 2014, as amended, between Verona Pharma plc and Kenneth NewmanF-1 333-21712410.7
4/3/2017 
       
4.9#Employment Agreement, dated September 24, 2016, between Verona Pharma plc and Piers John MorganF-1 333-21712410.8
4/3/2017 
       
4.10#Employment Agreement, dated October 1, 2016, between Verona Pharma plc and Claire PollF-1 333-21712410.9
4/3/2017 
       
4.11#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.10
4/3/2017 
       
4.12#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.16
4/3/2017 
       
Employment Agreement, dated May 1, 2017, between Verona Pharma plc and Desiree Luthman[2]    *
       
4.14Form of Indemnification Agreement for board membersF-1/A 333-21712410.11.1
4/18/2017 
       
4.15Form of Indemnification Agreement for executive officersF-1/A 333-21712410.11.2
4/18/2017 
       
4.16Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, OrbiMed Private Investments VI, LP and NPlus1 Singer Advisory LLPF-1 333-21712410.12
4/3/2017 
       
4.17Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Abingworth Bioventures VI LP and NPlus1 Singer Advisory LLPF-1 333-21712410.13
4/3/2017 
       
4.18Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. and NPlus1 Singer Advisory LLPF-1 333-21712410.14
4/3/2017 
       
8.1List of SubsidiariesF-1 333-21712410.14
4/3/2017 
       

Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer    *
       
Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer    *
       
Section 1350 Certification of Chief Executive Officer**
Section 1350 Certification of Chief Financial Officer**
Consent of PricewaterhouseCoopers LLP    *
       
101.INS    *
       
101.SCH    *
       
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
101.DEF    *
 
*Filed herewith.
**Furnished herewith.
#Indicates management contract or compensatory plan.
Confidential treatment granted as to portions of the exhibit. Confidential materials omitted and filed separately with the Securities and Exchange Commission.SEC.






SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

VERONA PHARMA PLC
By: /s/ David Zaccardelli
Name: David Zaccardelli, Pharm. D
Title: Chief Executive Officer

Date: February 27, 2020

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
Consolidated financial statements
as of and for the years ended December 31, 2016 and 2017


pwclogo.jpg
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Verona Pharma Plc

Opinion on the Financial Statements

We have audited the accompanying consolidated statementstatements of financial position of Verona Pharma Plc and its subsidiaries (the “Company”) as of December 31, 20172019 and December 31, 20162018, and the related consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 20172019, including the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172019 and December 31, 2016,2018, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172019 in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Change in Accounting Principle

As discussed in Note 2.17 to the consolidated financial statements, the Company changed the manner in
which it accounts for its contingent liability in 2019.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.




/s/ PricewaterhouseCoopers LLP
Reading, United Kingdom
February 27, 20182020


We have served as the Company's auditor since 2015.

PricewaterhouseCoopers LLP, 3 Forbury Place, 23 Forbury Road, Reading, Berkshire, RG1 3JH
T: +44 (0) 118 597 111, F: +44 (0) 1189 383 020, www.pwc.co.uk

PricewaterhouseCoopers LLP is a limited liability partnership registered in England with registered number OC303525. The registered office of
PricewaterhouseCoopers LLP is 1 Embankment Place, London WC2N 6RH. PricewaterhouseCoopers LLP is authorised and regulated by the Financial Conduct Authority for designated investment business.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF FINANCIAL POSITION
AS OF DECEMBER 31, 20162019 AND 20172018
 Notes As of
December 31, 2016
 As of
December 31, 2017
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 1,877
 1,969
Property, plant and equipment13
 14
 16
Total non-current assets  2,332
 2,426
      
Current assets:     
Prepayments and other receivables14
 2,959
 1,810
Current tax receivable  1,067
 5,006
Short term investments3
 
 48,819
Cash and cash equivalents  39,785
 31,443
Total current assets  43,811
 87,078
Total assets  46,143
 89,504
      
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital15
 2,568
 5,251
Share premium  58,526
 118,862
Share-based payment reserve  2,103
 5,022
Accumulated loss  (28,728) (49,254)
Total equity  34,469
 79,881
      
Current liabilities:   
  
Derivative financial instrument19
 7,923
 1,273
Trade and other payables17
 2,823
 7,154
Tax payable—U.S. Operations  126
 169
Total current liabilities  10,872
 8,596
      
Non-current liabilities:     
Assumed contingent obligation18
 802
 875
Deferred income  
 152
Total non-current liabilities  802
 1,027
Total equity and liabilities  46,143
 89,504
 Notes As of
December 31, 2019
 Restated As of
December 31, 2018
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 2,757
 2,618
Property, plant and equipment13
 43
 21
Right-of-use assets14
 971
 
Total non-current assets  4,212
 3,080
      
Current assets:     
Prepayments and other receivables15
 2,770
 2,463
Current tax receivable  7,396
 4,499
Short term investments  7,823
 44,919
Cash and cash equivalents  22,934
 19,784
Total current assets  40,923
 71,665
Total assets  45,135
 74,745
    
  
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital16
 5,266
 5,266
Share premium  118,862
 118,862
Share-based payment reserve  10,364
 7,923
Accumulated loss  (100,627) (68,633)
Total equity  33,865
 63,418
      
Current liabilities:   
  
Derivative financial instrument18
 895
 2,492
Lease liability14
 460
 
Trade and other payables19
 8,261
 7,733
Total current liabilities  9,616
 10,225
      
Non-current liabilities:     
Assumed contingent liability20
 1,103
 996
Non-current lease liability14
 491
 
Deferred income  60
 106
Total non-current liabilities  1,654
 1,102
Total equity and liabilities  45,135
 74,745
The accompanying notes form an integral part of these consolidated financial statements.


VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF COMPREHENSIVE INCOME
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Notes Year Ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (7,270) (4,522) (23,717)
General and administrative costs  (1,706) (2,498) (6,039)
Operating loss7 (8,976) (7,020) (29,756)
Finance income9 45
 1,841
 7,018
Finance expense9 (73) (794) (2,465)
Loss before taxation  (9,004) (5,973) (25,203)
Taxation — credit10 1,509
 954
 4,706
Loss for the year  (7,495) (5,019) (20,497)
Other comprehensive income / (loss) :       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  4
 43
 (29)
Total comprehensive loss attributable to owners of the Company  (7,491) (4,976) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (37.1) (15.0) (23.4)

 Notes Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year Ended December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (33,476) (19,294) (23,717)
General and administrative costs  (7,607) (6,297) (6,039)
Operating loss7 (41,083) (25,591) (29,756)
Finance income9 2,351
 2,783
 7,018
Finance expense9 (474) (1,325) (2,465)
Loss before taxation  (39,206) (24,133) (25,203)
Taxation — credit10 7,265
 4,232
 4,706
Loss for the year  (31,941) (19,901) (20,497)
Other comprehensive income / (loss):       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  (33) 38
 (29)
Total comprehensive loss attributable to owners of the Company  (31,974) (19,863) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (30.3) (18.9) (23.4)
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2015, 2016 AND 2017
 Year ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(9,004) (5,973) (25,203)
Finance income(45) (1,841) (7,018)
Finance expense73
 794
 2,465
Share-based payment charge399
 577
 2,919
Decrease / (increase) in prepayments and other receivables59
 (1,809) (161)
Increase in trade and other payables1,274
 1,068
 5,363
Depreciation of property, plant and equipment10
 10
 7
Loss on disposal of property, plant and equipment
 3
 
Loss on disposal of intangible assets135
 
 
Amortization of intangible assets43
 52
 116
Cash used in operating activities(7,056) (7,119) (21,512)
Cash inflow from taxation700
 1,533
 816
Net cash used in operating activities(6,356) (5,586) (20,696)
Cash flow from investing activities:     
Interest received51
 87
 128
Purchase of plant and equipment(1) (13) (9)
Payment for patents and computer software(142) (115) (208)
Transfer to short term investments
 
 (54,465)
Maturity of short term investments
 
 5,085
Net cash used in investing activities(92) (41) (49,469)
Cash flow from financing activities:     
Gross proceeds from issue of shares and warrants
 44,750
 
Gross proceeds from the April 2017 Global Offering  
 70,032
Transaction costs on issue of shares and warrants
 (2,910) 
Transaction costs on April 2017 Global Offering
 (636) (6,786)
Net cash generated from financing activities
 41,204
 63,246
Net (decrease) / increase in cash and cash equivalents(6,448) 35,577
 (6,919)
Cash and cash equivalents at the beginning of the year9,968
 3,524
 39,785
Effect of exchange rates on cash and cash equivalents4
 684
 (1,423)
Cash and cash equivalents at the end of the period3,524
 39,785
 31,443

The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF CHANGES IN EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Share
Capital
 Share
Premium
 Share-based
Expenses
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 20151,010
 26,650
 1,127
 (16,261) 12,526
Loss for the year
 
 
 (7,495) (7,495)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 4
 4
Total comprehensive loss for the period
 
 
 (7,491) (7,491)
Share-based payments
 
 399
 
 399
Balance at December 31, 20151,010
 26,650
 1,526
 (23,752) 5,434
Balance at January 1, 20161,010
 26,650
 1,526
 (23,752) 5,434
Loss for the year
 
 
 (5,019) (5,019)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 43
 43
Total comprehensive loss for the period
 
 
 (4,976) (4,976)
New share capital issued1,556
 34,151
 
 
 35,707
Transaction costs on share capital issued
 (2,325) 
 
 (2,325)
Share options exercised during the period2
 50
 
 
 52
Share-based payments
 
 577
 
 577
Balance at December 31, 20162,568

58,526

2,103

(28,728)
34,469
Balance at January 1, 20172,568
 58,526
 2,103
 (28,728) 34,469
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the period
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the period6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 20175,251

118,862

5,022

(49,254)
79,881
 Share
Capital
 Share
Premium
 Share-based Payment
Reserve
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 2017, as previously reported2,568
 58,526
 2,103
 (28,728) 34,469
Impact of change in accounting policy
 
 
 484
 484
Balance at January 1, 2017 (Restated)2,568
 58,526
 2,103
 (28,244) 34,953
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the year
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the year6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 2017 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Balance at January 1, 2018 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Loss for the year
 
 
 (19,901) (19,901)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 38
 38
Total comprehensive loss for the year
 
 
 (19,863) (19,863)
New share capital issued15
 
 
 
 15
Share-based payments
 
 2,901
 
 2,901
Balance at December 31, 2018 (Restated)5,266
 118,862

7,923

(68,633)
63,418
Balance at January 1, 20195,266
 118,862
 7,923
 (68,633) 63,418
Impact of change in accounting policy
 
 
 (20) (20)
Adjusted Balance at January 1, 20195,266
 118,862
 7,923
 (68,653) 63,398
Loss for the year
 
 
 (31,941) (31,941)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (33) (33)
Total comprehensive loss for the year
 
 
 (31,974) (31,974)
Share-based payments
 
 2,441
 
 2,441
Balance at December 31, 20195,266

118,862

10,364

(100,627)
33,865
The currency translation reserve for 2015, 20162019, 2018, and 2017, is not considered material and as such is not presented in a separate reserve but is included in the total accumulated losses reserve.
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTS OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2019, 2018 AND 2017
 Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year ended December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(39,206) (24,133) (25,203)
Finance income(2,351) (2,783) (7,018)
Finance expense474
 1,325
 2,465
Share-based payment charge2,441
 2,901
 2,919
Increase in prepayments and other receivables(484) (640) (161)
Increase in trade and other payables449
 531
 5,363
Depreciation of property, plant, equipment and right of use asset398
 8
 7
Unrealised FX gains/ losses(8) 
 
Amortization of intangible assets106
 90
 116
Cash used in operating activities(38,181) (22,701) (21,512)
Cash inflow from taxation4,361
 4,590
 816
Net cash used in operating activities(33,820) (18,111) (20,696)
Cash flow from investing activities:     
Interest received887
 883
 128
Purchase of plant and equipment(38) (13) (9)
Payment for patents and computer software(244) (255) (208)
Purchase of short term investments(7,940) (59,700) (54,465)
Maturity of short term investments45,134
 64,366
 5,085
Net cash generated from / (used in) investing activities37,799
 5,281
 (49,469)
Cash flow used in financing activities:     
Gross proceeds from the April 2017 Global Offering
 
 70,032
Transaction costs on April 2017 Global Offering
 
 (6,786)
Repayment of finance lease liabilities(426) 
 
Net cash (used in) / generated from financing activities(426) 
 63,246
Net increase / (decrease) in cash and cash equivalents3,553
 (12,830) (6,919)
Cash and cash equivalents at the beginning of the year19,784
 31,443
 39,785
Effect of exchange rates on cash and cash equivalents(403) 1,171
 (1,423)
Cash and cash equivalents at the end of the year22,934
 19,784
 31,443



123

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019



1. General information
Verona Pharma plc and its subsidiaries (the "Company") are a clinical-stage biopharmaceutical group focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.
The Company is a public limited company, which is dual listed on the Alternative Investment MarketAIM, a market of the London Stock Exchange, and on April 27, 2017, American Depositary Shares began trading onThe Nasdaq Global Market.Market ("Nasdaq"). The company is incorporated and domiciled in the United Kingdom. The address of the registered office is 1 Central Square, Cardiff, CF10 1FS, United Kingdom.
The Company has two subsidiaries, Verona Pharma Inc. and Rhinopharma Limited ("Rhinopharma"), both of which are wholly owned.
On February 10, 2017 theThe Company effected a 50-for-1 consolidation oflisted its shares. All references to ordinary shares, options and warrants, as well as share, per share and related information in these consolidated financial statements have been adjusted to reflect the consolidation as if it had occurred at the beginning of the earliest period presented.

On April 26, 2017, the Company announced the closing of its global offering of an aggregate of 47,399,001 new ordinary shares, consisting of the initial public offering in the United States of 5,768,000 American Depositary Shares (“ADSs”("ADS") at a price of $13.50 per ADS and on Nasdaq in April 2017 ("the private placement in Europe of 1,255,001 ordinary shares at a price of £1.32 per ordinary share, for gross proceeds of $80 million (the “Global Offering”2017 Global Offering"). Each ADS offered represents eight ordinary shares of the Company. The ordinary shares offered were allotted and issued in a concurrent private placement in Europe and other countries outside of the United States and Canada.
In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in a shareholder private placement separate from the Global Offering (the “Shareholder Private Placement”), contingent on and concurrent with the Global Offering and generating additional gross proceeds of £0.3 million.
On May 15 and May 23, 2017, pursuant to the Global Offering, the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS, for additional gross proceeds of $9.9 million bringing the total gross proceeds in the Global Offering to $89.9 million (£70.0 million). Including the Shareholder Private Placement, the total gross proceeds of the capital raising amounted to $90.3 million (£70.3 million).
The ADSs began tradingtrade on theThe Nasdaq Global Market under the ticker symbol “VRNA” on April 27, 2017.and Verona Pharma’s ordinary shares continue to trade on the AIM market of the London Stock Exchange (“AIM”) under the symbol “VRP”.


F-7124

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

2. Accounting policies
A summary of the principal accounting policies, all of which have been applied consistently throughout the year, is set out below.
2.1  Basis of preparation
The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRSs") as issued by the International Accounting Standards Board and IFRS Interpretations Committee and with the Companies Act 2006 applicable to companies reporting under IFRS.
The consolidated financial statements have been prepared under the historical cost convention, with the exception of derivative financial instruments which have been measured at fair value.
The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires management to exercise its judgementjudgment in the process of applying the Company's accounting policies. The areas involving a higher degree of judgementjudgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in note 4.
Going concern
DuringThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the yearyears ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had aan accumulated loss of £20.5 million (2016: £5.0 million).£100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of December 31, 2017,the issuance date of the annual consolidated financial statements, the Company had net assets of £79.9 million (2016: £34.5 million) of which £80.3 million (2016: £39.8 million) wasexpects that its cash and cash equivalents, would be sufficient to fund its operating expenses and short term investments.
The operation of the Company is currently being financed from funds that the Company raised from share placings. On May 2nd, 2017, the company raised $89.9 million (£70 million) from the initial public offering in the United States. On July 29, 2016, the Company raised gross proceeds of £44.7 million from a placing, subscription and open offer (the "July 2016 Placement"). These funds are expected to be used primarily to support the development of RPL554 in chronic obstructive pulmonary disease ("COPD"), other chronic respiratory diseases as well as corporate and general administrative expenditures.
The Directors believe that the Company has sufficient funds to complete the current clinical trials, to cover corporate and general administration costs and for it to comply with all commitmentscapital expenditure requirements for at least 12 months from the endissuance date of these annual consolidated financial statements. Accordingly, the reporting periodconsolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and accordingly, are satisfiedwhich contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the going concern basis remains appropriate forCompany will be successful in securing additional finance on acceptable terms, or at all, and should the preparationCompany be unable to raise sufficient additional funds it will be required to defer the initiation of these consolidatedPhase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial statements.condition.
Business combination
The Company applies the acquisition method to account for business combinations. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred to the former owners of the acquiree and the equity interests issued by the Company. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement and the fair value of any pre-existing equity interest in the subsidiary.arrangement. The excess of the cost of acquisition over the fair value of the Company's share of the identifiable net assets acquired is recorded as goodwill. Goodwill arising on acquisitions is capitalized and is subject to an impairment review, both annually and when there are indications that the carrying value may not be recoverable.
Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. Acquisition-related costs are expensed as incurred and included in administrative expenses.

125

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Basis of consolidation
These consolidated financial statements include the accountsfinancial statements of Verona Pharma plc and its wholly owned subsidiaries Verona Pharma, Inc. and Rhinopharma. The acquisition method of accounting was used to account for the acquisition of Rhinopharma.

F-8

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Inter-company transactions, balances and unrealized gains on transactions between group companies are eliminated.
Verona Pharma Inc. and Rhinopharma adopt the same accounting policies as the Company.
2.2  Foreign currency translation
Items included in the Company's consolidated financial statements are measured using the currency of the primary economic environment in which the Entityentity operates ("the functional currency"). The consolidated financial statements are presented in pounds sterling ("£"), which is the functional and presentational currency of the Company and the presentational currency of the Company.
Transactions in foreign currencies are recorded using the rate of exchange ruling at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are translated using the rate of exchange ruling at the balance sheet date and the gains or losses on translation are included in the Consolidated Statement of Comprehensive Income. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the exchange rates at the dates of the original transactions. Non-monetary items measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined.
The assets and liabilities of foreign operations are translated into pounds sterling at the rate of exchange ruling at the balance sheet date. Income and expenses are translated at weighted average exchange rates for the period. The exchange differences arising on translation for consolidation are recognized in Other Comprehensive Income.
2.3  Cash and cash equivalents
Cash and cash equivalents includes cash in hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less.
2.4  Deferred taxation
Deferred tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred tax is determined using tax rates (and laws)and laws that have been enacted or substantially enacted by the balance sheet date and expected to apply when the related deferred tax is realized or the deferred liability is settled.
Deferred tax assets are recognized to the extent that it is probable that the future taxable profit will be available against which the temporary differences can be utilized.
2.5  Research and development costs
Capitalization of expenditure on product development commences from the point at which technical feasibility and commercial viability of the product can be demonstrated and the Company is satisfied that it is probable that future economic benefits will result from the product once completed. No such costs have been capitalized to date, given the early stage of the Company's product candidate development.date.
Expenditure on research and development activities that do not meet the above criteria is charged to the Consolidated Statement of Comprehensive Income as incurred.

126

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.6  Property, plant and equipment
Property, plant and equipment are stated at cost, net of depreciation and any provision for impairment. Cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is calculated so as to write off the cost less their estimated residual

F-9

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

values, on a straight-line basis over the expected useful economic lives of the assets concerned. The principal annual periods used for this purpose are:
Computer hardware3 years
Office equipment5 years
2.7  Intangible assets and goodwill
(a)Goodwill
Goodwill arises on the acquisition of subsidiaries and represents the excess of the consideration transferred over the fair value of the identifiable net assets acquired.
(b)Patents
Patent costs associated with the preparation, filing, and obtaining of patents are capitalized and amortized on a straight-line basis over the estimated useful lives of the patents of ten years.
(c)Computer software
Amortization is calculated so as to write off the cost less estimated residual values, on a straight-line basis over the expected useful economic life of two years.
(d)In-process research & development ("IPRIP R&D")
The IP R&D assetsasset acquired through a business combinations which, at the time of acquisition, havecombination, that had not reached technical feasibility, arewas initially recognized at fair value. Subsequent movements in the assumed contingent liability (see 2.12) that relate to changes in estimated cashflows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. There were no changes in estimated cashflows or probabilities of success in the years ended 31 December, 2019, or 2018.
This is a change in accounting policy as prior to January 1, 2019, movements in the assumed contingent liability were taken to the Statement of Comprehensive Income (see note 2.17). As a result of the change in accounting policy £484 thousand was restated from Accumulated Loss to the IP R&D asset.
The amounts are capitalized and are not amortized but areasset is subject to impairment testing until completion, abandonment of the projectsproject or when the research findings are commercialized through a revenue generating project. The Company determines whether intangible assets (including goodwill) are impaired on an annual basis and this requires the estimationor when there is an indication of the higher of fair value less costs of disposal and value in use. Upon successful completion or commercialization of the relevant project, IP R&D will be reclassified to developed technology. The Company will make a determination as to the then useful life of the developed technology, generally determined by the period in which the substantial majority of the cash flows are expected to be generated, and begin amortization. In case of abandonment the asset will be impaired.
2.8  Impairment of intangible assets, goodwill and non-financial assets
Goodwill and intangible assets that have an indefinite useful life and intangible assets not ready to use are not subject to amortization. These assets are tested annually for impairment or more frequently if impairment indicators exist. Non-financial assets that are subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is recognized for the amount by which the asset's carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset's fair value (less costs of disposal) and value in use.
For the purpose of assessing impairment, assets are grouped at the lowest levels for which there are separately identifiable cash flows, which are largely independent of the cash flows from other assets or group of assets (cash generating units "CGUs").
Goodwill is allocated to CGUs for the purpose of impairment testing. The allocation is made to those CGUs or groups of CGUs that are expected to benefit from the business combination in which the goodwill arose. The units or group of units are identified at the lowest level at which goodwill is monitored for internal management purposes, being the operating segments.
The Company is a single cash generating unit. Goodwill that arose on the acquisition of Rhinopharma has been thus allocated to this single CGU. IP R&D is tested for impairment at this level as well, since it is the lowest level at which independent cash flows can be identified.impairment.

F-10127

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)

Non-financial2.8  Impairment of intangible assets, othergoodwill and non-financial assets
The Company holds intangible assets relating to acquired IP R&D, patent costs and goodwill. Goodwill and intangible assets are tested annually for impairment or if there is an indication of impairment. The Company is a single cash generating unit ("CGU") so all intangibles are allocated to the Company as one CGU.
As at 31 December, 2019, and 2018 the Company carried out impairment reviews with reference to its market capitalization. At points during the year ended 31 December 2019, the Company's market capitalization was less than goodwill,its net assets. As a result, the Company carried out an impairment review by forecasting expected sales of ensifentrine, delivered by nebulizer for the maintenance treatment of chronic COPD, and associated costs. This cashflow forecast was then discounted to its net present value to demonstrate that have been previously impaired are reviewed for possible reversalthe value in use of the impairment at each subsequent reporting date.ensifentrine was greater than the Company's net assets. The Company was required to make various estimates and assumptions as inputs for this model including, but not limited to:
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
costs of the Company's overhead;
size and make up of a sales force;
probabilities of success; and
discount rate.

2.9  Employee Benefits
(a)Pension
(a)    Pension
The Company operates a defined contribution pension schemeschemes for UKits employees. Contributions payable for the year are charged to the Consolidated Statement of Comprehensive Income. The contributions are recognized as employee benefit expense when they are due. Differences between contributions payable in the year and contributions actually paid are shown as either accruals or prepayments in the Consolidated Statement of Financial Position. The Company has no further payment obligationliability once the contributions have been paid.
(b)Bonus plans
(b)    Bonus plans
The Company recognizes a liability and an expense for bonus plans if contractually obligated or if there is a past practice that has created a constructive obligation.liability.
2.10  Share-based payments
The Company operates a number of equity-settled, share-based compensation schemes. The fair value of share-basedshare based payments under such schemes is expensed on a straight-line basis over the vesting period, based on the Company's estimate of shares that will eventually vest.
Where equity settled transactions are entered into with third party service providers, fair value is determined by reference to the value of the services provided in lieu of payment. The expense is measured based on the services received at the date of receipt of those services and is charged to the Consolidated Statement of Comprehensive Income over the period for which the services are received and a corresponding credit is made to reserves. For other equity-settled transactions fair value is determined using the Black-Scholes model and requires several assumptions and estimates as disclosed in note 16.17.
The fair value of share-based payments under these schemes is expensed on a straight-line basis over the share based payments' vesting periods, based on the Company's estimate of shares that will eventually vest.

128

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.11  Provisions
Provisions are recognized when the Company has a present legal or constructive obligationliability as a result of past events, it is probable that an outflow of resources will be required to settle the obligation,liability, and the amount can be reliably estimated. Provisions are measured at the present value of the expenditures expected to be required to settle the obligationliability using a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the obligation.liability.
2.12  Assumed contingent obligationliability related to the business combinationscombination
On September 19,In 2006 the Company acquired Rhinopharma for a total consideration of £1.52 million payable in ordinary shares. In addition, the Companyand assumed certain contingent obligationsliabilities owed by Rhinopharma to Vernalis under anPharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. (“Ligand”). The Company refers to the assignment and license agreement (the "assumed contingent consideration") followingas the sale of IP by Vernalis to Rhinopharma. Pursuant to the agreement Vernalis (i)Ligand Agreement.
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds (the "Vernalis"Ligand Patents") and (ii) granted to the Company an exclusive, worldwide, royalty-bearing license under certain VernalisLigand know-how to develop, manufacture and commercialize products (the "Licensed Products") developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds.
The assumed contingent obligationliability comprises (a) a milestone payment on obtaining the first approval of any regulatory authority for the commercialization of a Licensed Product; (b)Product, low to mid singlemid-single digit royalties based on the future sales performance of all Licensed Products;Products and (c) a portion equal to a midtwentymid-twenty percent of any consideration received from any sub-licensees for the VernalisLigand Patents and for VernalisLigand know-how. On the date of

F-11

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

acquisition theThe liability was initially recognized at fair value of theand subsequently measured at amortized cost. The assumed contingent obligation wasliability is estimated as the expected value of the milestone payment and royalty payments and sub-license payments,payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement was thenis discounted back to its net present value applying an effective interest rate of 12%. The initial fair value of the assumed contingent obligation as of December 31, 2006 was deemed to be insignificant at the date of the acquisition, so it was not recorded.

The amount of royaltiesRoyalties payable under the agreement isare based on the future sales performance of certain products, and so the total amount payable is unlimited. The level of salesSales that may be achieved under the
agreement isare difficult to predict and subject to estimate, which is inherently uncertain.
The value of this assumed contingent obligationliability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes. The assumed contingent obligation is accounted for as a liability,
Remeasurements relating to changes in estimated cash flows and any adjustments made to the valueprobabilities of the liability will besuccess are recognized in the Consolidated Statement of Comprehensive IncomeIP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the period.

year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
2.13  Government and other grants
The Company may receive government, regional or charitable grants to support its research efforts in defined projects where these grants provide for reimbursement of approved costs incurred as defined in the respective grants. Income in respect of such grants would include contributions towards the costs of research and development. Income would be recognized when costs under each grant are incurred in accordance with the terms and conditions of the grant and the collectability of the receivable is reasonably assured. Government, regional and charitable grants relating to costs would be deferred and recognized in the Consolidated Statement of Comprehensive Income over the period necessary to match them with the costs they are intended to compensate. When the cash in relation to recognized government, regional or charitable grants is not yet received the amount is included as a receivable on the Consolidated Statement of Financial Position.
Where the grant income is directly related to the specific items of expenditure incurred, the income would be netted against such expenditure. Where the grant income is not a specific reimbursement of expenditure incurred, the Company would include such income under "Other income" in the Consolidated Statement of Comprehensive Income. Grants or investment credits may be repayable if the Company successfully commercializes a relevant program that was funded in whole or in part by the grant or investment credit within a particular timeframe. Prior to successful commercialization, the Company would not make any provision for repayment.
2.14  Financial instruments — initial recognition and subsequent measurement
The Company classifies a financial instrument, or its component parts, as a financial liability, a financial asset or an equity instrument in accordance with the substance of the contractual arrangement and the definitions of a financial liability, a financial asset and an equity instrument.
The Company evaluates the terms of the financial instrument to determine whether it contains an asset, a liability or an equity component. Such components shall be classified separately as financial assets, financial liabilities or equity instruments.
A financial instrument is any contract that gives rise to a financial asset of one entity and a financial liability or equity instrument of another entity.
(a)Financial assets, initial recognition and measurement and subsequent measurement
AllThe Company has no financial assets not recorded at fair value through profit or loss such as receivables and deposits,("FVPTL"). All assets are initially recognized initially at fair value plus transaction costs. costs and subsequently measured at amortized cost using the effective interest method.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement

Financial assets carriedliabilities are classified as measured at fair value through profitamortized cost or loss are initially recognized at fair value, and transaction costs are expensed in the income statement.FVTPL.

F-12129

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)


The measurement of financial assets depends on their classification. Financial assets suchCompany's warrants are classified as receivablesFVTPL and deposits are subsequently measured at amortized cost. The Company does not hold any financial assets at fair value throughgains and losses are recognized in profit or loss or available for sale financial assets.loss.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement
Financial liabilities are classified, at initial recognition, as financial liabilities at fair value through profit or loss, loans and borrowings, or payables, as appropriate. All
Other financial liabilities are initially recognized initially at fair value and in the case of loans and borrowings and payables, net of directly attributable transaction costs.
The measurement of financial assets and financial liabilities depends on their classification. Financial liabilities at fair value through profit or loss include financial liabilities held for trading and financial liabilities designated upon initial recognition as at fair value through profit or loss. These are subsequently measured at fair value with any gains or losses recognized in profit or loss. All other financial liabilities are measured at amortized cost using the effective interest methodmethod. Interest expense and foreign exchange gains and losses are recognized in profit or loss. Any gain or loss on derecognition is also recognized in profit or loss.
The Company's financial liabilities include trade and other payables, the Company's warrants and derivative financial instruments.the assumed contingent liability.
(c)    Derivative financial instruments
Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently re-measured at fair value at the end of each reporting date. The Company holds only one type of derivative financial instrument, the warrants, as explained in Note 2.15.2.14.
The full fair value of the derivative is classified as a non-current liability when the warrants are exercisable in more than 12 months and as a current liability when the warrants are exercisable in less than 12 months.
Changes in fair value of a derivative financial liability when related to a financing arrangement are recognized in the Consolidated Statement of Comprehensive Income within Finance incomeIncome or Finance expense. Fair value gains or losses on derivatives used for non-financing arrangements are recognized in other operating income or expense.Expense.

130

2.15  Warrants
VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.14  Derivative financial instrument - warrants
Warrants issued by the Company to investors as part of a share subscription are compound financial instruments where the warrant meets the definition of a financial liability.
The financial liability component is initially measured at fair value in the Consolidated Statement of Financial Position. Equity is measured at the residual between the subscription price for the entire instrument and the liability component. The financial liability component is remeasured depending on its classification.remeasured. Equity is not remeasured.
2.162.15  Short Term Investments
Short term investments include fixed term deposits held at banks with original maturities of more thanbetween three months but less thanand a year. They are classified as loans and receivables and are measured at amortized cost using the effective interest method.

2.172.16  Transaction costs
Qualifying transaction costs might be incurred in anticipation of an issuance of equity instruments and may cross reporting periods. The entity defers these costs on the balance sheet until the equity instrument is recognized. Deferred costs are subsequently reclassified as a deduction from equity when the equity instruments are recognized, as the costs are directly attributable to the equity transaction. If the equity instruments are not subsequently issued, the transaction costs are expensed. Any costs not directly attributable to the equity transaction are expensed.

F-13

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Transaction costs that relate to the issue of a compound financial instrument are allocated to the liability and equity components of the instrument in proportion to the allocation of proceeds. Where the liability component is held at fair value through profit or loss, the transaction costs are expensed to the Consolidated Statement of Comprehensive Income. For liabilities held at amortized cost, transaction costs are deducted from the liability and subsequently amortized. The amount of transaction costs accounted for as a deduction from equity in the period is disclosed separately in accordance with International Accounting Standard (“IAS 1.1”).
2.17  Changes in accounting policy
Accounting for the assumed contingent liability
As discussed in note 2.12, in 2006 the Company acquired Rhinopharma and assumed contingent liabilities owed to Vernalis Pharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. ("Ligand").
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to ensifentrine and related compounds and an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize products. The assumed contingent liability comprises a milestone payment on obtaining the first approval of any regulatory authority and royalties based on the future sales of ensifentrine.
The initial fair value of the assumed contingent liability was estimated as the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, an assessment of the probability of success using standard market probabilities for respiratory drug development discounted to net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.
Up to the year ended December 31, 2018, movements in the liability relating to re-measurements of cash flows or changes in the probabilities of success were taken to the Consolidated Statement of Comprehensive Income. During the year ended December 31, 2019, the Company reviewed the accounting for this item and has determined that these movements in the liability will now be recognized in the cost of the corresponding asset. The corresponding asset is the intangible IP R&D asset.

131

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

The Company believes that this change in accounting policy results in the Consolidated Financial Statements providing a more relevant and reliable view of its financial position and performance because without an adjustment to the IP R&D asset on the re-measurement of the liability, the cost of the asset would not be fairly reflected on the Consolidated Statement of Financial Position. The Consolidated Statement of Financial Position more faithfully represents the financial position of the Company if the intangible asset is adjusted by any re-measurement of the liability for changes in estimated cash flows, to give a fairer reflection of the cost of the intangible asset.
The Company has reviewed the International Financial Reporting Interpretations Committee ("IFRIC") discussion of accounting for variable payments made for the purchase of an intangible asset that is not part of a business combination that concluded that it was too broad for it to address within the confines of existing IFRS standards. As a result, practice in this area is mixed and many pharmaceutical companies follow a cost accumulation model. The Company also noted that adjusting the cost of the asset when a liability is remeasured for changes in estimated cash flows is consistent with the guidance in IFRIC 1 for decommissioning liabilities and IFRS 16 for lease liabilities.   
There were no such re-measurements of the liability in the years ended December 31, 2019, 2018 and 2017. Movements in the liability in these periods related to the unwinding of the discount and movements in exchange rates.
IAS 8 requires opening balance of each affected component of equity to be adjusted for the earliest prior period presented and the other comparative amounts disclosed for each prior period presented as if the new accounting policy had always been applied.
The impact to the Group, therefore, is the restatement of £484 thousand from Accumulated Loss to the IP R&D asset, which relates to re-measurements recorded prior to January 1, 2017. As there were no re-measurements in the years ended December 31, 2019, 2018 and 2017 the £484 thousand adjustment is the same at each reporting period.
The following table is a summary of the restatement:

Financial statement line item As reported Adjustment for the change in accounting policy As adjusted
January 1, 2017 £'000s £'000s £'000s
       
Accumulated loss 28,728
 (484) 28,244
Intangible assets - IP R&D 1,469
 484
 1,953
This adjustment also increases non-current assets, total assets and total equity by £484 thousand in each of the years presented.
Adoption of IFRS 16
IFRS 16 ‘Leases’ is effective for accounting periods beginning on or after January 1, 2019 and replaces IAS 17 ‘Leases’. It eliminates the classification of leases as either operating leases or finance leases and, instead, introduces a single lessee accounting model. The adoption of IFRS 16 resulted in the Group recognizing lease liabilities within current liabilities, and corresponding right-of-use assets.
The Group’s principal lease arrangements are for office space. The Group has adopted IFRS 16 retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings at January 1, 2019. The standard permits a choice on initial adoption, on a lease-by-lease basis, to measure the right-of-use asset at either its carrying amount as if IFRS 16 had been applied since the commencement of the lease, or an amount equal to the lease liability, adjusted for any accrued or prepaid lease payments as at the time of adoption. The Group has elected to measure the right-of-use asset at its carrying value as if IFRS 16 had been applied since the commencement of the lease, with the result of a £20 thousand reduction in opening total accumulated losses.

132

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Initial adoption resulted in the recognition of right-of-use assets of £326 thousand and lease liabilities of £316 thousand.
£'000s
Lease commitments (including prepayments) disclosed as at December 31, 2018600
Less: adjustments relating to prepaid lease payments(28)
Lease commitments as at December 31, 2018572
Discounted using the group’s incremental borrowing rate526
Less: short-term leases recognized on a straight-line basis as expense(210)
Lease liability recognized as at January 1, 2019316
In applying IFRS 16 for the first time, the group has used the following practical expedients permitted by the standard:
the use of a single discount rate of 8% to a portfolio of leases with reasonably similar characteristics;
accounting for leases with a remaining lease term of less than 12 months as at January 1, 2019, as short-term leases; and
the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease.
The Company is applying IFRS 16’s low-value and short-term exemptions. The adoption of IFRS 16 has had no impact on the Group’s net cash flows, although a presentation change has been reflected in 2019 whereby cash outflows of £426 thousand are now presented as financing, instead of operating. General and administrative costs are £123 thousand lower than if IFRS 16 not been adopted, as depreciation of the right of use asset is less than the lease costs. There is a £50 thousand increase in finance expense from the presentation of a portion of lease costs as interest costs. There is no significant impact on overall loss before tax and loss per share.
At the time of adoption it was not reasonably certain that the Company would extend the leases. However, in the period the Company determined that this was the case and agreed extensions. As a result it recognized an additional liability and right-of-use asset of £1,047 thousand.
2.18  New standards, amendments and interpretations adopted by the Company
The following amendments havestandard has been adopted by the Company for the first time for the financial year beginning on or after January 1, January, 2017. It did not materially impact the Company’s results:2019:

· Annual Improvements to IFRS Standards 2014-2016 Cycle,
· Disclosure initiative - amendments to IAS 7, and
· Recognition of Deferred Tax Assets for Unrealized Losses - Amendments to IAS 12.

IFRS 16 "Leases"
The amendments to IAS 7 require disclosure of changes in liabilities arising from financing activities, seeCompany adopted IFRS 16 on January 1, 2019, and, as a consequence, changed its accounting policies. See note 3.3.

2.17.
2.19  New standards, amendments and interpretations issued but not effective for the financial year beginning January 1, 20172019 and not early adopted
A number of newThere are no IFRS standards and amendments to standards andor interpretations have been issued but are not yet effective for annual periods beginning after January 1, 2017 (noted below), andthat would be expected to have not been adopted in preparing these consolidated financial statements.
IFRS 9 "Financial instruments" (effective for annual periods beginning on or after January 1, 2018)
IFRS 15 "Revenue from contracts with customers" (effective for annual periods beginning on or after January 1, 2018
IFRS 16 "Leases" (effective for annual periods beginning on or after January 1, 2019)
IFRS 9 will have noa material impact on the accounting or measurement of any of the financial instruments the Company currently holds.
IFRS 15 will have no impact on the financial statements of the Company as it is not currently revenue generating.
IFRS 16 is effective for accounting periods beginning on or after 1 January 2019 and will replace IAS 17 'leases'. It will eliminate the classification of leases as either operating leases or finance leases and, instead, introduce a single lessee accounting model. The adoption of IFRS 16 will result in the Company recognizing lease liabilities and corresponding 'right to use' assets for agreements that are currently classified as operating leases. See note 20 for further details on operating leases held.Group.

F-14133

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

3. Financial Instruments
3.1  Financial Risk Factors
The Company's activities have exposed it to a variety of financial risks: market risk (including currency risk and interest rate risk), credit risk, and liquidity risk. The Company's overall risk management program is focused on preservation of capital and the unpredictability of financial markets and has sought to minimize potential adverse effects on the Company's financial performance and position.
(a)Currency risk
Foreign currency risk reflects the risk that the Company's net assets will be negatively impacted due to fluctuations in exchange rates. The Company has not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
The summary quantitative datedata about the Company's exposure to currency risk is as follows. Figures are the pound sterling values of balances in each currency:

 Year Ended December 31, 2016   Year Ended December 31, 2017
  USD EUR   USD EUR
  £'000s £'000s   £'000s £'000s
Cash and cash equivalents 10,631
 242
   16,806
 301
Short term Investments 
 
   19,718
 
Trade and other payables 305
 180
   276
 403

December 31, 2019 December 31, 2018
 GBP USD EUR GBP USD EUR
 £'000s £'000s £'000s £'000s £'000s £'000s
Cash and cash equivalents18,517
 4,399
 18
 11,293
 8,470
 21
Short term Investments6,316
 1,507
 
 19,850
 25,069
 
Trade and other payables3,226
 4,306
 728
 2,872
 4,329
 532
Sensitivity Analysis
A reasonably possible strengthening (weakening)or weakening of the Euro USor U.S. dollar or Sterling against all other currencies atpounds sterling as of December 31, December2019 and 2018 would have affected the measurement of the financial instruments denominated in a foreign currency (excluding the assumed contingent liability).
The following table shows how a movement in a currency would give rise to a profit or (loss) and affected equity and profit and loss by the amounts shown below. This analysis assumes that all other variables remain constant.a corresponding entry in equity.
 Profit or loss and equity
 Strengthening Weakening
December 31, 2017£'000s £'000s
EUR (5% movement)35
 (35)
USD (5% Movement)1,840
 (1,840)
December 31, 2016£'000s £'000s
EUR (5% movement)21
 (21)
USD (5% Movement)547
 (547)
 Profit or loss and equity
 Strengthening Weakening
December 31, 2019£'000s £'000s
EUR (5% movement)(36) 36
USD (5% Movement)80
 (80)
December 31, 2018£'000s £'000s
EUR (5% movement)(26) 26
USD (5% Movement)1,461
 (1,461)
Foreign currency denominated trade payables are short term in nature (generally 30 to 45 days). The Company has a U.S. operation, the net assets of which are exposed to foreign currency translation risk.
Estimated cashflows relating to the assumed contingent liability are predominantly denominated in US dollars. In the years ended December 31, 2019, and 2018, movements in foreign exchange rates were not material and no sensitivity analysis is therefore provided.
(b)Credit risk
Credit risk reflects the risk that the Company may be unable to recover contractual receivables. As the Company is still in the development stage no policies are currently required to mitigate this risk.

F-15134

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

For banks and financial institutions, only independently rated parties with a minimum rating of "B+" are accepted. The Directors recognize that this is an area in which they may need to develop specific policies should the Company become exposed to further financial risks as the business develops.
As of December 31, 2017,2019, and December 31, 2016,2018, cash and cash equivalents and short term investments were placed at the following banks:
Cash and Cash EquivalentsYear ended December 31, 2016 
Credit
rating
 Year ended December 31, 2017 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland11,287
 A3
 16,623
 A2
Lloyds Bank28,447
 A1
 13,448
 Aa3
Standard Chartered
 
 1,242
 A1
Wells Fargo51
 Aa1
 130
 Aa1
Total39,785
   31,443
  

Cash and Cash EquivalentsYear ended December 31, 2019 
Credit
rating
 Year ended December 31, 2018 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland1
 A1 150
 A1
Lloyds Bank8,355
 Aa3 15,862
 Aa3
Citibank6,529
 Aa3 3,135
 A1
Barclays1,968
 A1 449
 A2
Wells Fargo111
 Aa1 188
 Aa1
Close Brothers5,970
 Aa3 
 
Total22,934
   19,784
  

Short Term InvestmentsYear ended December 31, 2016Credit
rating
Year ended December 31, 2017Credit
rating
£'000£'000
Banks
Royal Bank of Scotland

15,316
A2
Lloyds Bank

11,036
Aa3
Standard Chartered

22,467
A1
Wells Fargo


Aa1
Total
48,819

Short Term InvestmentsYear ended December 31, 2019 Credit
rating
 Year ended December 31, 2018 Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland5,616
 A1 9,186
 A1
Lloyds Bank
 Aa3 1,567
 Aa3
Standard Chartered
 A1 15,450
 A1
Citibank
 Aa3 7,053
 A1
Barclays2,207
 A1 11,663
 A2
Total7,823
   44,919
  

(c)    Management of capital
The Company considers capital to be its equity reserves. At the current stage of the Company's life cycle, the Company's objective in managing its capital is to ensure funds raised meet the research and operating requirements until the next development stage of the Company's suite of projects.
The Company ensures it is meeting its objectives by reviewing its Key Performance Indicators ("KPIs") to ensure the research activities are progressing in line with expectations, costs are controlled and unused funds are placed on deposit to conserve resources and increase returns on surplus cash held.
(d)Interest rate risk
As of December 31, 2017,2019, the Company had cash deposits of £31.4£22.9 million (2016: £39.8(2018: £19.8 million) and short term investments of £48.8£7.8 million (2016: nil) (2018: £44.9 million). The rates of interest received during 20172019 ranged between 0.0% and 1.73%2.87%. A 0.25% increase in interest rates would not have a material impact on finance income.Theincome. The Company's exposure to interest rate risk, which is the risk that the interest received will fluctuate as a result of changes in market interest rates on classes of financial assets and financial liabilities, was as follows:


F-16
135

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)



 December 31, 2016 December 31, 2017
 
Floating
interest rate
 
Fixed
Interest rate
 
Floating
interest rate
 
Fixed
Interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits11,338
 28,447
 25,720
 5,723
Short Term Investments
 
 
 48,819
Total11,338
 28,447
 25,720

54,542

 December 31, 2019 December 31, 2018
 
Floating
interest rate
 
Fixed
interest rate
 
Floating
interest rate
 
Fixed
interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits10,006
 12,928
 15,082
 4,702
Short Term Investments
 7,823
 
 44,919
Total10,006
 20,751
 15,082
 49,621

(e)Liquidity risk
The Company periodically prepares periodic working capital forecasts for the foreseeable future, allowing an assessment of the cash requirements of the Company, to manage liquidity risk. The following table provides an analysis of the Company's financial liabilities. The carrying value of all balances is equalapproximates to their fair value. The Company's maturity analysis for the derivative financial instrument from the issue of warrants is given in note 19.18.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2016       
Trade payables719
 
 
 
Other payables54
 
 
 
Accruals2,050
 
 
 
Contingent obligation
 
 
 1,807
Total2,823
 
 
 1,807
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2019       
Trade payables1,455
 
 
 
Accruals6,806
 
 
 
Lease liability476
 557
 
 
Assumed contingent liability(1)

 
 
 1,807
Total8,737
 557
 
 1,807
This table includes the undiscounted amount of the assumed contingent liability. See note 20.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2018       
Trade payables2,839
 
 
 
Other payables12
 
 
 
Accruals4,882
 
 
 
Assumed contingent liability(1)

 
 
 1,807
Total7,733
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation.liability. See note 18.
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2017       
Trade payables1,214
 
 
 
Other payables74
 
 
 
Accruals5,866
 
 
 
Contingent obligation
 
 
 1,807
Total7,154
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation. See note 18.20.


F-17136

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.2  Fair value estimation
The carrying amounts of cash and cash equivalents, receivables, accounts payable and accrued liabilities approximate to fair value due to their short-term nature. The carrying amount of the assumed contingent liability approximates to fair value as the underlying assumptions are currently similar. 
For financial instruments that are measured in the Consolidated Statement of Financial Position at fair value, IFRS 7 requires disclosure of fair value measurements by level of the following fair value measurement hierarchy:
Quoted prices (unadjusted) in active markets for identical assets or liabilities (level 1);
Inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly (level 2); and
Inputs for the asset or liability that are not based on observable market data (level 3).
For the year ended December 31, 2017,2019, and 2016,2018, fair value adjustments to financial instruments measure at fair value through profit and loss resulted in the recognition of finance income of £6.7£1.6 million in 2019 and £1.1a finance loss of £1.2 million respectively.in 2018.
The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. These valuation techniques maximize the use of observable market data where it is available and rely as little as possible on entity specific estimates. If all significant inputs required to ascertain the fair value of an instrument are observable, the instrument is included in level 2. If one or more of the significant inputs are not based on observable market data, the instrument is included in level 3.
 Level 3 Total
 £'000s £'000s
At December 31, 2017   
Derivative financial instrument1,273
 1,273
Total1,273
 1,273
 Level 3 Total
 £'000s £'000s
At December 31, 2019   
Derivative financial instrument895
 895
Total895
 895

Movements in Level 3 items during the years ended December 31, 2016,2019, and 20172018 are as follows:
Derivative financial instrument2016 2017
 £'000s £'000s
At January 1
 7,923
Initial recognition of derivative financial instrument8,991
 
Fair value adjustments recognized in profit and loss(1,068) (6,650)
At December 317,923
 1,273
Derivative financial instrument2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit and loss(1,597) 1,219
At December 31895
 2,492

Further details relating to the derivative financial instrument are set out in notes 4 and 1918 of these financial statements.
In determining the fair value of the derivative financial instrument, the Company applied the Black Scholes model; key inputs include the share price at reporting date, estimations on timelines, volatility and risk-free rates. These assumptions and the impact of changes in these assumptions, where material, are disclosed in note 19.18.

F-18137

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.3  Change in liabilities arising from financing activities
The Company has provided a reconciliation so that changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes can be evaluated.
 December 31, 20172019
 Derivative financial instrument
 £'000s
At January 17,9232,492
Fair value adjustments - non cash(6,6501,597)
At December 311,273895

See note 1918 for information relating to the derivative financial instrument.

2019
Lease liability
£'000s
At January 1316
Capitalization of rental leases - non cash1,061
Payment of lease liability - cash(426)
At December 31951

See note 14 and note 2.17 for information relating to the capitalized leases.
4. Critical accounting estimates and judgments
The preparation of financial statements in conformity with IFRS requires the use of accounting estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Although these estimates are based on management's best knowledge of current events and actions, actual results ultimately may differ from those estimates. IFRS also requires management to exercise its judgment in the process of applying the Company's accounting policies.
The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are as follows:
(a)    Assumed contingent obligationliability
The Company has a material obligationliability for the future payment of royalties and milestones associated with contractual obligationsliabilities on RPL554, a development productensifentrine, acquired as part of the acquisition of RhinopharmaRhinopharma. The estimation of the fair valueamounts and timing of the assumed contingent obligation on acquisitionfuture cashflows requires the selectionforecast of an appropriate valuation model, consideration as to the inputs necessary for the valuation model chosen,royalties payable and the estimation of the likelihood that the regulatory approval milestone will be achieved (see notes 2.12 and estimates of the future cash flows and their timing (for further detail see note 19)20). The estimates for the assumed contingent obligationliability are based on a discounted cash flow model. Key assessments and judgmentsestimates included in the fair value calculation of deferred consideration are:
development, regulatory and marketing risks associated with progressing the product to market approval in key target territories;
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
launch of competitive products; and
discount rate and time to crystallization of contingent consideration.

In accordance with IAS 39 ("Financial Instruments Recognition and Measurement" (para AG8)), when there is a change in the expected cash flows, the assumed contingent obligation is re-measured with the change in value

F-19138

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Critical accounting estimates and judgments (continued)

launch of competitive products;
probabilities of success; and
time to crystallization of contingent consideration.
going through
When there is a change in the Consolidated Statement of Comprehensive Income. Cash flow estimates are revised when the probabilityexpected cash flows or probabilities of success, changes.the assumed contingent liability is re-measured with the change in value recognized in the IP R&D asset it relates to. This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The assumed contingent obligationliability is measured at amortized cost with the discount unwinding in the Consolidated Statement of Comprehensive Incomefinance expense throughout the year. Actual outcomes could differ significantly from the estimates made.
The Company has judged that the probabilities of success will change when it moves from one stage of clinical development to another. Management have determined that, for the purposes of assessing probabilities of success, the Company will move from Phase 2 to Phase 3 after an End of Phase 2 Meeting with the Food and Drug Administration ("FDA") in the US that provides confidence over ensifentrine's historical development program and planned Phase 3 program. A remeasurement of the liability at this time is likely to result in a significant increase in both the liability and the corresponding IP R&D asset.The Company has previously announced that it expects to meet with the FDA in the first half of 2020. The Company notes that there is no guarantee that the meeting will take place in the timeframe anticipated or that there will be a successful outcome.
Should the probabilities of success and estimates of cash flows change there will be a material increase in the assumed contingent liability and corresponding IP R&D asset. The amount will be dependent on feedback from the FDA and the probabilities of success applied. Should the Company determine that it has moved from Phase 2 to Phase 3 then the value of the liability could increase by between £15 million and £30 million; the increase in the value of the liability will give rise to an approximately equivalent increase in the value of the IP R&D asset, as described further in Note 2.7.
The value of the assumed contingent obligationliability as of December 31, 2017 amounts to £0.9 million. (2016: £0.8 million). The increase in value of the assumed contingent obligation during 20172019 amounted to £0.1 million (2016: £0.2£1.1 million. (2018: £1.0 million) and the movement relates to unwinding the discount on the liability and retranslating for changes in US$ exchange rates. The increase was recorded in finance expense. There was no change in the year to the probability of success and consequently cash flow estimates were not revised.
The discount percentage applied is 12%.
(b)    Valuation of the Derivative Financial Liability
In July 2016, warrants
Pursuant to the July 2016 Placement, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant. The warrants entitle the investors to subscribe for in aggregate a maximum of 12,446,37012,401,262 ordinary shares.
In accordance with IAS 32 and Companythe Company’s accounting policy, as disclosed in note 2.15,2.14, the Company classified the warrants as a derivative financial liability to be presented on the Company's Consolidated Statement of Financial Position.
The fair value of these warrants is determined by applying the Black-Scholes model. Assumptions are made on inputs such as time to maturity, the share price,term, volatility and risk free rate in order to determine the fair value per warrant. For further details see note 19.
Transaction costs arising on the issues of these shares and warrants are allocated to the equity and warrant liability components in proportion to the allocation of proceeds.
(c)    Recognition of research and development expenditure
The Company incurs research and development expenditure from third parties. The Company recognizes this expenditure in line with the management’s best estimation of the stage of completion of each research and development project. This includes the calculation of accrued costs at each period end to account for expenditure that has been incurred. This requires management to estimate full costs to complete for each project and also to estimate its current stage of completion. The costs related to the Clinical Research Organization expenses in the year was £18.5 million. The related accruals and prepayments were £4.6 million and £0.5 million respectively.
(d)    Transaction costs related the Global Offering
The Company incurred various transaction costs relating to the Global Offering, including commissions, professional advisor fees, financial advice, listing fees and other costs. When management judged them to be incremental costs directly attributable to the transaction they were accounted for as a deduction from equity. Otherwise the costs were expensed to the consolidated income statement as incurred.

18.
5. Earnings per share
Basic loss per ordinary share of 23.4p (2016: 15.0p30.3p (2018: 18.9p and 2015: 37.1p)2017: 23.4p) for the Company is calculated by dividing the loss for the year ended December 31, 20172019 by the weighted average number of ordinary shares in issue of 87,748,031105,326,638 as of December 31, 2017 (2016: 33,499,4132019 (2018: 105,110,504 and 2015: 20,198,469)2017: 87,748,031). Potential ordinary shares are not treated as dilutive as the entity is loss making and such shares would be anti-dilutive.


F-20

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


6. Segmental reporting
The Company’s activities are covered by one operating and reporting segment: Drug Development. There have been no changes to management’s assessment of the operating and reporting segment of the Company during the period.year.
All non-current assets are based in the United Kingdom.
7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging:     
Research and development costs:     
Employee benefits (note 8)1,322
 2,037
 3,435
Amortization of patents (note 12)43
 51
 111
Legal, professional consulting and listing fees
 
 331
Loss on disposal of patents136
 
 
Other research and development expenses5,769
 2,434
 19,840
Total research and development costs7,270
 4,522
 23,717
General and administrative costs:   
  
Employee benefits (note 8)625
 865
 2,857
Legal, professional consulting and listing fees608
 884
 2,045
Amortization of computer software (note 12)
 1
 5
Loss on disposal of property, plant and equipment (note 13)
 3
 
Depreciation of property, plant and equipment (note 13)10
 10
 7
Operating lease charge — land and buildings157
 169
 294
Loss on variations in foreign exchange rate21
 139
 36
Other general and administrative expenses285
 427
 795
Total general and administrative costs1,706
 2,498
 6,039
Operating loss8,976
 7,020
 29,756




F-21139

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

8. Directors' emoluments and staff costs7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and Development5
 5
 7
General and Administrative3
 2
 5
Total8
 7
 12
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits722
 951
 897
Social security costs132
 118
 103
Incremental payment for additional services89
 44
 
Other pension costs38
 19
 17
Total directors' emoluments981
 1,132
 1,017
Share-based payment charge232
 257
 1,037
Directors' emoluments including share-based payment charge1,213
 1,389
 2,054

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries540
 1,027
 2,136
Social security costs42
 98
 182
Incremental payment for additional services
 58
 
Share-based payment charge137
 319
 1,882
Other pension costs15
 11
 38
Total other staff costs734
 1,513
 4,238
The Company operates a defined contribution pension scheme for U.K. employees and executive directors. The total pension cost during the year ended December 31, 2017 was £55 thousand (2016: £30 thousand and 2015: £53 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2017(2016 and 2015: £nil).

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging / (crediting):     
Research and development costs:     
Employee benefits (note 8)4,688
 3,360
 3,435
Amortization of patents (note 12)102
 85
 111
Legal, professional consulting and listing fees537
 161
 331
Other research and development expenses28,149
 15,688
 19,840
Total research and development costs33,476
 19,294
 23,717
General and administrative costs: 
  
  
Employee benefits (note 8)3,093
 3,240
 2,857
Legal, professional consulting and listing fees2,155
 1,296
 2,045
Amortization of computer software (note 12)4
 5
 5
Depreciation of property, plant and equipment (note 13)16
 8
 7
Depreciation of right-of-use assets (note 14)382
 
 
Operating lease charge — land and buildings
 384
 294
Loss / (gain) on variations in foreign exchange rate345
 (9) 36
Other general and administrative expenses1,612
 1,373
 795
Total general and administrative costs7,607
 6,297
 6,039
Operating loss41,083
 25,591
 29,756




F-22140

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
Finance income and expense (continued)2019

9. Finance income8. Directors' emoluments and expensestaff costs
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances45
 86
 345
Foreign exchange gain on translating foreign currency denominated bank balances
 687
 
Fair value adjustment on derivative financial instruments (note 19)
 1,068
 6,650
Other Income
 
 23
Total finance income45
 1,841
 7,018
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and development13
 7
 7
General and administrative9
 7
 5
Total22
 14
 12
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits850
 830
 897
Social security costs112
 94
 103
Incremental payment for additional services26
 26
 
Other pension costs10
 10
 17
Total directors' emoluments998
 960
 1,017
Share-based payment charge925
 1,337
 1,037
Directors' emoluments including share-based payment charge1,923
 2,297
 2,054
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate executive officers costs:     
Wages and salaries1,150
 857
 864
Social security costs98
 83
 81
Share-based payment charge751
 769
 1,332
Other pension costs21
 19
 17
Total executive officers costs2,020
 1,728
 2,294
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries2,788
 1,622
 1,272
Social security costs265
 150
 101
Share-based payment charge765
 795
 550
Other pension costs46
 34
 21
Total other staff costs3,864
 2,601
 1,944
The Company considers key management personnel to comprise directors and executive officers.
The Company operates defined contribution pension schemes for its employees and executive director. The total pension cost during the year ended December 31, 2019 was £77 thousand (2018: £63 thousand and 2017: £55 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2019 (2018 and 2017: £nil).

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Transaction costs allocated to the issue of warrants (note 19)
 586
 
Foreign exchange loss on translating foreign currency denominated balances
 
 2,392
Remeasurement of assumed contingent arrangement (note 18)10
 122
 
Unwinding of discount factor and foreign exchange movements related to the assumed contingent arrangement (note 18)63
 86
 73
Total finance expense73
 794
 2,465

F-23141

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Taxation (continued)
9. Finance income and expense
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances754
 861
 345
Foreign exchange gain on translating foreign currency denominated balances
 1,922
 
Fair value adjustment on derivative financial instruments (note 18)1,597
 
 6,650
Other Income
 
 23
Total finance income2,351
 2,783
 7,018

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Fair value adjustment on derivative financial instruments (note 18)
 1,219
 
Interest on discounted lease liability50
 
 
Foreign exchange loss on translating foreign currency denominated balances305
 
 2,392
Unwinding of discount factor related to the assumed contingent arrangement (note 20)119
 106
 73
Total finance expense474
 1,325
 2,465

142

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

10. Taxation
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
UK tax credit(1,520) (1,067) (5,006)
US tax charge
 129
 306
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
Factors affecting the tax charge for the year     
Loss on ordinary activities(9,002) (5,973) (25,203)
Multiplied by standard rate of corporation tax of 19.25% (2016: 20% and 2015: 20.25%)(1,823) (1,195) (4,852)
Effects of:     
Non-deductible expenses114
 292
 675
Fair value adjustment on derivative financial instruments
 (214) (1,280)
Research and development incentive(600) (427) (2,116)
Temporary differences not recognized(1) (4) (2)
Difference in overseas tax rates
 56
 136
Tax losses carried forward not recognized790
 554
 2,739
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
U.K. tax credit(7,250) (4,290) (5,006)
U.S. tax charge56
 30
 306
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
      
The difference between the total tax shown above and the amount calculated by applying the standard rate of tax to the loss before tax is as follows:
Factors affecting the tax credit for the year     
Loss on ordinary activities before taxation(39,206) (24,133) (25,203)
      
Multiplied by standard rate of corporation tax of 19% (2018: 19% and 2017: 19.25%)(7,449) (4,585) (4,852)
Effects of:     
Non-deductible expenses515
 540
 675
Fair value adjustment on derivative financial instruments(303) 232
 (1,280)
Research and development incentive(3,119) (1,846) (2,116)
Temporary differences not recognized(6) (3) (2)
Difference in overseas tax rates16
 8
 136
Tax losses carried forward not recognized3,152
 1,394
 2,739
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
UKU.K. corporation tax is charged at 19.25% (2016: 20.00%19% (2018: 19.00% and 2015: 20.25%2017: 19.25%) and U.S. federal and state tax at 35% (201627.6% (2018: 27.6% and 2015:2017: 35%).
The following tables represent deferred tax balances recognized in the Consolidated Statement of Financial Position. There were no movements in either the deferred tax asset or the deferred tax liability.
 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s
Deferred tax assets250
 250
Deferred tax liabilities(250) (250)
Net balances
 
 As at December 31, 2019 As at December 31, 2018
 £'000s £'000s
Deferred tax assets332
 250
Deferred tax liabilities(332) (250)
Net balances
 
The deferred tax liability relates to the difference between the accounting and tax bases of the IP R&D intangible asset. A deferred tax asset relating to UK tax losses has been recognized and offset against the liability.
Factors that may affect future tax charges
The Company has UKU.K. tax losses available for offset against future profits in the UK.United Kingdom. However an additional deferred tax asset has not been recognized in respect of such items due to uncertainty of future profit streams. As of December 31, 2017,2019, the unrecognized deferred tax asset at 17% is estimated to be £5.43£9.27 million (2016: £3.15(2018: £6.65 million at 17%).

F-24143

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

11. Goodwill
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Goodwill at January 1 and December 31441
 441
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Goodwill at January 1 and December 31441
 441

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in connection with the acquisition of Rhinopharma in September 2006. Goodwill is not amortized, but is tested annually for impairment. Annual
The Company has one CGU so goodwill is tested for impairment together with its intangible assets. It was tested with reference to the Company's market capitalization as of December 31, 2019, the date of testing is performed by comparing the expected recoverable amountof IP R&D and goodwill impairment. The market capitalization of the CGUCompany was approximately £65.3 million as of December 31, 2019, (2018: 92.2 million) compared to the carrying amountCompany's net assets of £33.9 million (2018: £63.4 million). Therefore, no impairment was required.
The Company notes that after the reduction in its share price since December 31, 2018, and before the increase by December 31, 2019, at various points in the three months to March 31, 2019, the market value of the CGUCompany was less than its net book value. The Company therefore carried out an impairment review as at March 31, 2019. From market research the Company assessed, among other inputs, potential patient numbers from likely physician prescribing patterns, price points, the time from possible launch to which goodwill has been allocatedpeak sales, script rejection, attrition rates and probability of success. The Company also carried out a sensitivity analysis on key assumptions and assessed that a reasonable change in these assumptions would not lead to the value in use falling below net book value. Consequently, management determined that the Company's value in use exceeded the carrying amountvalue of the CGU. See note 2.8Company's assets and that no impairment was required.

At various other points in the year ended December 31, 2019, the market value of the Company was less than its net book value. Consequently, management re-performed the impairment review quarterly, and identified no changes to market conditions, the consolidated financial statements.
12. Intangiblecompetitive landscape, market research insights or other factors that would change its conclusions. As a result, management determined that the Company's value in use exceeded the carrying value of the Company's assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20161,469
 25
 482
 1,976
Additions
 5
 110
 115
Disposals
 (24) 
 (24)
At December 31, 20161,469
 6
 592
 2,067
Accumulated amortization       
At January 1, 2016
 24
 138
 162
Charge for year
 1
 51
 52
Disposals
 (24) 
 (24)
At December 31, 2016
 1
 189
 190
Net book value       
At December 31, 20161,469

5

403

1,877
and that no impairment was required at those dates.

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20171,469
 6
 592
 2,067
Additions
 5
 203
 208
Disposals
 
 (68) (68)
At December 31, 20171,469
 11
 727
 2,207
Accumulated amortization       
At January 1, 2017
 1
 189
 190
Charge for year
 5
 111
 116
Disposals
 
 (68) (68)
At December 31, 2017
 6
 232
 238
Net book value       
At December 31, 20171,469

5

495

1,969

F-25144

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Intangible assets (continued)

12. Intangible assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 2018 (Restated)1,953
 11
 727
 2,691
Additions
 4
 251
 255
Disposals
 
 (6) (6)
At December 31, 2018 (Restated)1,953
 15
 972
 2,940
Accumulated amortization       
At January 1, 2018
 6
 232
 238
Charge for year
 5
 85
 90
Disposals
 
 (6) (6)
At December 31, 2018
 11
 311
 322
Net book value       
At December 31, 2018 (Restated)1,953

4

661

2,618

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20191,953
 15
 972
 2,940
Additions
 3
 242
 245
At December 31, 20191,953
 18
 1,214
 3,185
Accumulated amortization       
At January 1, 2019
 11
 311
 322
Charge for year
 4
 102
 106
At December 31, 2019
 15
 413
 428
Net book value       
At December 31, 20191,953

3

801

2,757
Intangible assets comprise patents, computer software and an IP R&D asset that arose on the acquisition of Rhinopharma and investment in patents to protect RPL554.ensifentrine.
The IP R&D asset acquired through the business combination was initially recognized at fair value. Subsequent movements in the assumed contingent liability that relate to changes in estimated cash flows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. This is currentlya change in accounting policy (see note 2.17). The asset is not amortized and is reviewedtested annually for impairment on an annual basis or where there is an indication that the assets might be impaired until the asset is brought into use.impairment.
Patents are amortized over a period of ten years and are regularly reviewedtested annually for impairment.
Intangible assets are tested for impairment to ensure the carrying amount exceeds the recoverable amount in accordance with note 2.8.
Recognizing thatgoodwill, as the Company is still in its pre-revenue phase and thathas only one CGU. See note 11 for information about the research projects are not yet ready for commercial use, the Company assesses the recoverable amount of the CGU containing the IP R&D with reference to the Company's market capitalization as of December 31, 2017, the date of testing of goodwill impairment. The market capitalization of the Company was approximately £109.7 million as of December 31, 2017, (2016: £80.0 million) compared to the Company's net assets of £79.9 million (2016: £34.5 million). Therefore, no impairment was recognized.review.

F-26145

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

13. Property, plant and equipment
 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201643
 36
 79
Additions13
 
 13
Disposals(39) (36) (75)
At December 31, 201617
 
 17
Accumulated depreciation     
At January 1, 201639
 27
 66
Charge for the year3
 7
 10
Disposals(39) (34) (73)
At December 31, 20163
 
 3
Net book value     
At December 31, 201614



14
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201826
 26
Additions13
 13
At December 31, 201839
 39
Accumulated depreciation   
At January 1, 201810
 10
Charge for the year8
 8
At December 31, 201818
 18
Net book value   
At December 31, 201821

21


 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201717
 
 17
Additions9
 
 9
At December 31, 201726
 
 26
Accumulated depreciation     
At January 1, 20173
 
 3
Charge for the year7
 
 7
At December 31, 201710
 
 10
Net book value     
At December 31, 201716



16
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201939
 39
Additions38
 38
At December 31, 201977
 77
Accumulated depreciation   
At January 1, 201918
 18
Charge for the year16
 16
At December 31, 201934
 34
Net book value   
At December 31, 201943

43

F-27146

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

14. Right-of-use assets - property leases
The right-of-use asset relates to rented office space in London and New York where the Company generally enters in to leases for terms of less than three years. Before the adoption of IFRS 16 these leases were classified as operating leases.

The Consolidated Statement of Financial Position shows the following amounts relating to leases:

 Year ended December 31, 2019 As of January 1, 2019*
 £'000s £'000s
Right-of-use assets   
Right-of-use assets971
 326
 971
 326
    
Lease liabilities   
Current(460) (316)
Non Current(491) 
 (951) (316)

Additions to the right-of-use assets were £1,047,000 and were recognized when the Company was reasonably certain to extend the leases. The additions related to both of the Company's office locations, both of which agreements have similar terms and conditions.
To calculate the value of the lease liabilities the Company applied a discount rate of 8%.
The leases end in 2021 and 2022 and include options to extend them. The Company has determined it is not yet reasonably certain to operate the option to extend the leases and so has recognized lease payments only to these points in its calculation of the lease liabilities.
The right-of-use lease assets are depreciated over the term of the leases.
The Consolidated Statement of Comprehensive Income includes the following amounts relating to leases:

Year ended December 31, 2019Year ended December 31, 2018
£'000s£'000s
Depreciation charge of right-of-use assets
Right-of-use assets(382)
(382)
Interest expense (including finance cost)50

Expense relating to short-term leases (included in general and administrative expenses)78


The total cash outflow for leases in 2019 was £492,000.

147

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

15. Prepayments and other receivables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Prepayments1,361
 1,138
Deferred IPO costs1,527
 
Other receivables71
 672
Total prepayments and other receivables2,959
 1,810
Deferred IPO costs related to the Global Offering. These costs were offset against share premium in 2017 when the Global Offering was completed.
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Prepayments1,309
 1,362
Other receivables1,461
 1,101
Total prepayments and other receivables2,770
 2,463
The prepayments balance includes prepayments for insurance and clinical activities.
There are no impaired assets within prepayments and other receivables.
15.16. Share Capital
On February 8, 2017, the board of the Company approved a share consolidation where every 50 existing ordinary shares of £0.001 were consolidated into one ordinary share of £0.05. The movements in the Company's share capital are summarized below:
Date Description 
Number of
shares
 
Share Capital
amounts in
 £'000
January 1, 2016 
 20,198,469
 1,010
July 29, 2016 Issuance of shares 31,115,926
 1,556
September 12, 2016 Exercise of options 3,334
 
October 24, 2016 Exercise of options 3,334
 
December 28, 2016 Exercise of options 40,000
 2
As at December 31, 2016   51,361,063
 2,568
May 2, 2017 Issuance of shares 47,653,100
 2,383
May 18, 2017 Issuance of shares 5,539,080
 277
May 26, 2017 Issuance of shares 330,824
 17
September 13, 2017 Exercise of options 133,333
 6
December 31, 2017   105,017,400
 5,251

Date Description 
Number of
shares
 
Share Capital
amounts in £'000s
 
January 1, 2018   105,017,401
 5,251
August 9, 2018 Vesting of RSUs 58,112
 3
September 20, 2018 Vesting of RSUs 251,125
 12
As at December 31, 2018   105,326,638
 5,266
As at December 31, 2019   105,326,638
 5,266
The total number of authorized ordinary shares, with a nominal value of £0.05 each, is 200,000,000 (share capital of £10,000,000). All 105,017,400105,326,638 ordinary shares at December 31, 20172019 are allotted, unrestricted, called up and fully paid. All issued shares rank pari passu.
On April 26, 2017,During 2018, the Company announced the closing of its Global Offering of an aggregate of 47,399,001 newissued 309,237 ordinary shares comprising 5,768,000 American Depositary Shares (“ADSs”) at a priceupon vesting of $13.50 per ADS and 1,255,001 ordinary shares at a price of £1.32 per ordinary share. During May 2017 the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS. The total gross proceeds in the Global Offering amounted to $89.9 million (£70.0 million).employee restricted share units.



F-28

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Share Capital (continued)

In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in the Shareholder Private Placement, contingent on and concurrent with the Global Offering and generating gross proceeds of £0.3m.
Where there is a time and foreign exchange difference between proceeds from a share issue becoming due and being received, the movement is taken to Finance income or Finance expense as appropriate. In respect of the Global Offering and Shareholder Private Placement, the Company recorded a finance expense of £439 thousand arising from movements in exchange rates on funds receivable, offset by a saving on commission payable of £31 thousand, for a net finance expense of £408 thousand.
On September 13, 2017, the company issued 133,333 new shares upon exercise of share options at 110p per share, resulting in proceeds of £147 thousand to the Company.
On July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant (see note 19).
During 2016, the Company issued 46,666 ordinary shares upon exercise of employee share options.
As at December 31, 2017, the number of ordinary shares in issue was 105,017,400.  All new ordinary shares rank pari passu with existing ordinary shares.

F-29148

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

16.17. Share-based payments charge
The Company operates various share based payment incentive schemes for its staff.
In accordance with IFRS 2 "Share Based Payments," the cost of equity-settled transactions is measured by reference to their fair value at the date at which they are granted. Where equity-settled transactions were entered into with third party service providers, fair value is determined by reference to the value of the services provided. For other equity-settled transactions fair value is determined using the Black-Scholes model. The cost of equity-settled transactions is recognized over the period until the award vests. No expense is recognized for awards that do not ultimately vest. At each reporting date, the cumulative expense recognized for equity-based transactions reflects the extent to which the vesting period has expired and the number of awards that, in the opinion of the Directors at that date, will ultimately vest.
The costs of equity-settled share-based payments to employees are recognized in the Statement of Comprehensive Income, together with a corresponding increase in equity during the vesting period. During the twelve months ended December 31, 2017,2019, the Company recognized a share-based payment expense of £2.92£2.44 million (2016: £0.58 million ).(2018: £2.90 million). The charge is included within both general and administrative costs as well as in research and development costs and represents the current year's allocation of the expense for relevant share options.
The Company grants share options underoperates an Unapproved Share Option Scheme (the "Unapproved Scheme"). Under the Unapproved Scheme,under which options are granted to employees, directors and consultants to acquire shares atwere issued before 31 December 2016. The Company also operates a price to be determined by the Directors. In general, options granted prior to December 31, 2016 were granted at a premium to the share price at the date of grant and vested over a period of three years from the date of grant, one third vesting on the first anniversary of grant, a further third vesting on the second anniversary of grant and the remainder vesting on the third anniversary of grant.
Options granted since January 1, 2017 generally vest over three or four years from the date of the grant using two different methods. The first method is one third vesting over one year, the second third vesting over two years and the final third vesting over three years. The second method is one quarter vesting over one year, the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years. The vesting period is defined as the period between the date of grant and the date when the options become exercisable. The options are exercisable during a period ending ten years after the date of grant.
Options are also issued to advisors under the Unapproved Scheme. Such options generally vest immediately and are exercisable between one and two years after grant.
In 2016 the Company issued options under its tax efficient EMI Option Scheme (the "EMI Scheme"). Under the EMI Scheme,under which options were grantedissued before 31 December 2016. In 2017 the Company commenced the 2017 Incentive Award Plan under which the Company grants share options and Restricted Stock Units ("RSUs") to employees and directors whodirectors.
Since 2017 options are contracted to workissued with an exercise price at least 25 hours a week for the Company or for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price that is above the share price atthe evening before the date of issue. They vest over terms of one to four years.
RSUs also vest over terms of one to four years. In the grant andyear ended December 31, 2019, the Company modified the terms of all the RSUs issued prior January 1, 2019, to include a market based performance condition. The Company's share price must be maintained above £2 for thirty days for the RSUs to vest, in accordance with a vesting schedule determined byaddition to the Directors at the time of grant and have an exercise period of ten years from the date of grant.
The Company grants Restricted Stock Units to employees and directors.existing service condition. The RSUs vest overafter a periodfive year term irrespective of three or four years fromwhether the date£2 market condition was met. This modification did not result in an increase in the fair value of the grant using 2 different methods.RSUs. The first method is one third vesting over oneRSUs issued in the year ended December 31, 2019, also include the second third vesting over two yearssame market condition and the final third vesting over three years. The second method is one quarter vesting over onefive year the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years.term.
In the year ended December 31, 2019, under the 2017 Incentive Award Plan, the Company granted 4,656,828 (2016: 1,670,000 )5,569,050 (2018: 2,090,847) share options nil (2016: 32,000) share options under the EMI Scheme and 1,052,236 Restricted Stock Units (“RSUs”) (2016: nil)740,496 RSUs (2018: 273,390). The total fair values of the Optionsoptions and RSUs were estimated using the Black-Scholes option-pricing model for equity-settled transactions and amounted to £5.33£2.25 million (2016: £1.93(2018: £2.32 million). The cost is amortized over the vesting period of the options and RSUs on a straight-line basis.
Prior to the July 2016 Placement in 2016, management determined to take an option's contractual maximum life as an input into the Black-Scholes option-pricing model. Starting from the July 2016 Placement and in line with the continued development of the Company's clinical trials, the Company determined the time to maturity to be used in the valuation model to be better represented by the weighted-average life of the options granted.

F-30

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
16. Share-based payments charge (Continued)


Thebasis.The following assumptions were used for the Black-Scholes valuation of share options and RSUs granted in 20162018 and 2017.2019. For the options granted under the Unapproved Scheme the table indicates the ranges used in determining the fair-market values, aligning with the various dates of the underlying grants. The volatility is calculated using historichistorical weekly averages of the Company's share price over a period that is in line with the expected life of the options.
Issued in 2016EMI Scheme Unapproved
Scheme
Options granted32,000
 1,670,000
Risk-free interest rate1.42% 0.23%-1.42%
Expected life of options10 years
 5.5-10 years
Annualized volatility88.0% 74.3% - 88.0%
Dividend rate0.00% 0.00%
Vesting period3 years
 3 years
    
Issued in 2017Unapproved
Scheme
 Restricted Stock Units
Options granted4,656,828
 1,052,236
Risk-free interest rate0.29% - 0.62%
 0.42%-0.62%
Expected life of options5.5 – 7.0 years
 5.5 – 7.0 years
Annualized volatility71.3% - 73.3%
 71.3% - 73.3%
Dividend rate0.00% 0.00%
Vesting period3 and 4 years
 3 and 4 years
The Company had the following share options movements in the year ended December 31, 2017:
Year of issue Exercise
price (£)
 At January 1, 2017 
Options
granted
 
Options
exercised
 
Options
forfeited
 
Options
expired
 At December 31, 2017 Expiry date 
2012 2.50 - 7.50
 100,000
 
 
 
 
 100,000
 June 1, 2022 
2013 2
 100,000
 
 
 
 
 100,000
 April 15, 2023 
2013 2.00
 20,000
 
 
 
 (20,000) 
 June 1, 2023*
2013 2.00
 160,000
 
 
 
 
 160,000
 July 29, 2023 
2014 1.75
 110,000
 
 
 
 
 110,000
 May 15, 2024 
2014 1.75
 63,333
 
 
 
 (13,333) 50,000
 May 15, 2024*
2014 1.10 - 1.75
 200,000
 
 (133,333) 
 
 66,667
 August 6, 2018
**

2015 1.25
 82,000
 
 
 
 
 82,000
 January 29, 2025*
2015 1.25
 510,000
 
 
 
 
 510,000
 January 29, 2025 
2016 2
 260,000
 
 
 
 
 260,000
 February 2, 2026 
2016 2.00
 22,000
 
 
 
 
 22,000
 February 2, 2026*
2016 1.80
 810,000
 
 
 
 
 810,000
 August 3, 2026 
2016 1.89
 300,000
 
 
 
 
 300,000
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 
 4,656,828
 
 
 
 4,656,828
 April 26, 2027 
Total   3,037,333
 4,656,828
 (133,333) 
 (33,333) 7,527,495
   
*Options granted under the EMI Scheme.
* *    Valued based on fair value of services received.

and RSUs.

F-31149

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)



Issued in 2018 Unapproved
Scheme
 Restricted Stock Units
Options granted 2,090,847
 273,390
Risk-free interest rate 1.08% - 1.22%
 1.08% - 1.22%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 69.88% -71.35%
 69.88% -71.35%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
     
Issued in 2019 Unapproved
Scheme
 Restricted Stock Units
Options granted 5,569,050
 740,496
Risk-free interest rate 0.39% - 0.82%
 0.76% - 0.82%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 67.98% - 69.71%
 63.82% - 69.71%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
The Company had the following Restricted Share Unitsshare options movements in the year ended December 31, 2017:2019:
Year of issue Exercise
price
(£)
 At January 1, 2017 Units
granted
 Units
exercised
 Units
forfeited
 Units
expired
 At December 31, 2017 Expiry date
2017   
 1,052,236
 
 
 
 1,052,236
 April 26, 2027
Total   

1,052,236







1,052,236
  
Year of issue Exercise
price (£)
 At January 1, 2019 
Options
granted
 
Options
forfeited
 
Options
expired
 At December 31, 2019 Expiry date 
2012 2.50 - 7.50
 99,993
 
 
 
 99,993
 June 1, 2022 
2013 2
 99,990
 
 
 (19,998) 79,992
 April 15, 2023 
2013 2.00
 159,999
 
 
 
 159,999
 July 29, 2023 
2014 1.75
 109,998
 
 
 
 109,998
 May 15, 2024 
2014 1.75
 49,998
 
 
 
 49,998
 May 15, 2024*
2015 1.25
 41,997
 
 
 
 41,997
 January 29, 2025*
2015 1.25
 549,999
 
 
 
 549,999
 January 29, 2025 
2016 2
 240,000
 
 
 
 240,000
 February 2, 2026 
2016 2.00
 21,996
 
 
 
 21,996
 February 2, 2026*
2016 1.80
 676,664
 
 
 
 676,664
 August 3, 2026 
2016 1.89
 299,997
 
 
 
 299,997
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 4,093,164
 
 
 
 4,093,164
 April 26, 2027 
2018 1.46
 2,008,319
 
 (34,614) 
 1,973,705
 March 8, 2028 
2019 570.00
 
 3,903,050
 (87,356) 
 3,815,694
 March 29, 2029 
2019 595.00
 
 346,000
 
 
 346,000
 June 11, 2029 
2019 457.00
 
 100,000
 
 
 100,000
 August 22, 2029 
2019 0.436
 
 720,000
 
 
 720,000
 November 6, 2029 
2019 445.00
 
 500,000
 
 
 500,000
 November 26, 2029 
Total   8,752,114
 5,569,050
 (121,970) (19,998) 14,179,196
   

The average fair value at grant date, by year of grant and plan, of the exercisable options as per December 31, 2017 is presented in the below table.
Year of issueEMI Scheme (£) Unapproved
Scheme (£)
 RSU (£)
20120.63 - 1.20
 
 
20130.83
 0.79 - 0.95
  
20140.76
 0.23 - 0.76
  
20150.57
 0.57
  
20161.35
 0.93 - 1.35
  
2017
 0.84
 1.33


Outstanding and exercisable share options by scheme as of December 31, 2017:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved7,313,473
 773,333
 1.50
 1.64
EMI213,984
 185,333
 3.06
 3.28
Total7,527,457
 958,666
 1.54
 1.95

As at December 31, 2017 there were no restricted share options exercisable (2016: nil) and there is no exercise price for restricted share options.





The options outstanding at December 31, 2017 had a weighted average remaining contractual life of 8.6 years (2016: 8.2 years). For 2016 and 2017, the number of options granted and expired and the weighted average
*Options granted under the EMI Scheme.

F-32150

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)


The Company had the following RSU movements in the year ended December 31, 2019:
Year of issue Exercise
price
(£)
 At January 1, 2019 Units
granted
 Units
vested
 Units
forfeited
 At December 31, 2019 Expiry date 
2017   729,987
 
 
 
 729,987
 April 26, 2027 
2018   132,486
 
 
 
 132,486
 March 8, 2028 
2019     740,496
 
 
 740,496
 March 29, 2027 
Total   862,473
 740,496
 
 
 1,602,969
   
Outstanding and exercisable share options by scheme as of December 31, 2019:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved13,965,212
 5,552,293
 1.12
 1.55
EMI213,984
 213,984
 3.06
 3.06
Total14,179,196
 5,766,277
 1.15
 1.61
As of December 31, 2019 there were no restricted share options exercisable (2018: nil) and there is no exercise price for restricted share options.
The options outstanding at December 31, 2019 had a weighted average remaining contractual life of 7.7 years (2018: 8.0 years). For 2018 and 2019, the number of options granted and expired and the weighted average exercise price of options were as follows:
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2016 1,792,000
 1.78
Options granted in 2016:    
Employees 1,002,000
 1.92
Directors 700,000
 2.05
Options exercised in the year (46,666) 1.12
Options forfeited in the year (150,001) 1.24
Options expired in the year (260,000) 2.46
At December 31, 2016 3,037,333
 1.87
Exercisable at December 31, 2016 846,667
 2.25
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2018 7,527,458
 1.53
Options granted in 2018:    
Employees 1,222,089
 1.46
Directors 868,758
 1.46
Options forfeited in the year (799,524) 1.43
Options expired in the year (66,667) 1.75
At December 31, 2018 8,752,114
 1.53
Exercisable at December 31, 2018 3,542,884
 1.66

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2017 3,037,333
 1.87
Options granted in 2017:    
Employees 3,150,846
 1.32
Directors 1,505,982
 1.32
Options exercised in the year (133,333) 1.10
Options forfeited in the year 
 
Options expired in the year (33,333) 1.90
At December 31, 2017 7,527,495
 1.53
Exercisable at December 31, 2017 797,333
 2.04

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2019 8,752,114
 1.53
Options granted in 2019:    
Employees 4,042,106
 0.55
Directors 1,526,944
 0.53
Options forfeited in the year (121,970) 0.82
Options expired in the year (19,998) 2.00
At December 31, 2019 14,179,196
 1.15
Exercisable at December 31, 2019 5,766,277
 1.60
The following table shows the number of RSUs issued, exercised and forfeited in 2017. No RSUs were granted in 2016 and none of the RSUs granted in 2017 were forfeited, canceled or vested in the year.2018. The fair value of each unvested RSU at grant date was £1.32.£1.46.

151

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
17. Share-based payments charge (Continued)


  Number of
RSUs
At January 1, 20172018 1,052,236
Granted:  
Employees 705,841136,404
Directors 346,395136,986
RSUs vested in the year(309,237)
RSUs forfeited in the year(153,916)
At December 31, 2018862,473
The following table shows the number of RSUs issued in 2019. There were no RSUs forfeited, canceled or vested in 2019. The fair value of each unvested RSU granted in 2019 was £0.57.
Number of
RSUs
At January 1, 2019862,473
Granted:
Employees474,072
Directors266,424
RSUs vested in the year
RSUs forfeited in the year
At December 31, 20172019 1,052,2361,602,969


F-33

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


17. Trade and other payables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Trade payables719
 1,214
Other payables54
 74
Accruals2,050
 5,866
Total trade and other payables2,823
 7,154
As of December 31, 2016, accruals included £0.89 million related to expenses associated with the Global Offering which was fully paid during the year ended December 31, 2017.
18. Assumed contingent obligation related to the business combinationDerivative financial instrument
The value of the assumed contingent obligation as of December 31, 2017 amounts to £875 thousand (2016: £802 thousand). The increase in value of the assumed contingent obligation during 2017 amounted to £73 thousand (2016: £208 thousand ) and was recorded in finance expense as it related to the unwind of the discount on the liability and retranslation for changes in US$ exchange rates. Periodic re-measurement is triggered by changes in the probability of success. In 2016 the remeasurement was triggered by the success of the Company's Phase 2a clinical trial, presented in March 2016. The discount percentage applied is 12%. In 2017 there were no events that triggered remeasurement.
 2016 2017
 £'000s £'000s
January 1594
 802
Re-measurement of assumed contingent obligation86
 
Impact of changes in foreign exchange rates37
 (23)
Unwinding of discount factor85
 96
December 31802
 875
The table below describes the reported change to the value of the liability during 2017 of £73 thousand (2016: £208 thousand) compared to what this number would be following the presented variations to the underlying assumptions (assuming the probability of success does not change):
 2016 2017
 £'000s £'000s
Change in value of the assumed contingent obligation208
 73
10% lower revenue assumption202
 72
10% higher revenue assumption215
 73
1% lower risk assumption205
 69
1% higher risk assumption211
 76

F-34

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


19. Warrants
Pursuant to the July 2016 Placement, onOn July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant.
The warrant holders can subscribe for 0.4 of an ordinary share at a per share exercise price of 120% of the placing price or £1.7238. The warrant holders can opt for a cashless exercise of their warrants, whereby the warrant holders can choose to exchange the warrants held for reduced number of warrants exercisable at nil consideration. The reduced number of warrants is calculated based on a formula considering the share price and the exercise price of the warrants. The warrants are therefore classified as a derivative financial liability, since their exercise could result in a variable number of shares to be issued.
The warrants entitled the investors to subscribe for, in aggregate, a maximum of 12,446,37012,401,262 shares. The warrants can be exercised on the earlier of the consummation of the Global Offering (being April 26, 2017) or the first anniversary of the grant, and the exercise period shall end on the fifth anniversary of the date of grant (being July 29, 2021).
The ordinary shares and warrants were accounted for as a compound financial instrument. The warrants component of the instrument issued at the July 2016 Placement was classified as a derivative financial liability and was initially measured at fair value of £9.0 million. The residual amount of proceeds totaling £35.7 million was recognized within equity. Subsequently the financial liability was re-measured at the reporting date at fair value through profit or loss.
The total of transaction costs the Company incurred for the above transactions amounted to £2.9 million of which £0.6 million was allocated to the warrants and the remaining £2.3 million was presented as a reduction to share premium, by reference to the proceeds allocated to each component. The amount assigned to the financial liability of the warrants was subsequently presented as finance expense in the Consolidated Statement of Comprehensive Income.until May 2, 2022.
In the year ended December 31, December 20172019, no warrants over 45,108 shares were forfeited (2016:(2018: nil).
The table below presents the assumptions in applying the Black-Scholes model to determine the fair value of the warrants.
 As of December 31, 2016 As of December 31, 2017
Shares available to be issued under warrants

12,446,370
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.088% 0.420%
Expected term to exercise2.43 years
 1.79 years
Annualized volatility73.53% 47.35%
Dividend rate0.00% 0.00%
 As of December 31, 2019 As of December 31, 2018
Shares available to be issued under warrants12,401,262
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.540% 0.760%
Expected term to exercise2.34 years
 3.34 years
Annualized volatility65.56% 60.72%
Dividend rate0.00% 0.00%

The figures disclosed above relating to the issue
152


As per the reporting date, the Company updated the underlying assumptions and calculated a fair value of these warrants amounting to £1.3£0.9 million. The variance of £6.7£(1.6) million is recorded as finance income in the Consolidated Statement of Comprehensive Income.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit or loss(1,597) 1,219
At December 31895
 2,492
For the amount recognized at December 31, 2019, the effect when the following parameter deviates up or down is presented in the below table.
Volatility
(up / down
10% pts)
£'000s
Variable up1,306
Base case, reported fair value895
Variable down535
19. Trade and other payables
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Trade payables1,455
 2,839
Other payables
 12
Accruals6,806
 4,882
Total trade and other payables8,261
 7,733
20. Assumed contingent liability related to the business combination
The value of the assumed contingent liability as of December 31, 2019 is £1.1 million (2018: £1.0 million). The increase in value of the assumed contingent liability during 2019 amounted to £0.1 million (2018: £0.1 million).
The assumed contingent liability relates to the acquisition, in 2006, of rights to certain patents and patent applications relating to ensifentrine and related compounds under which the Company is obliged to pay royalties to Ligand (see 2.12).
The assumed contingent liability is measured at the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement is discounted back to its net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.

F-35153

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
19. Warrants (Continued)2019

Re-measurements relating to changes in estimated cash flows and probabilities of success are recognized in the IP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
The Company considers that probabilities of success will change when it moves from one stage of clinical development to another. See note 4 for a further discussion of this.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2016 2017
 £'000s £'000s
At January 1
 7,923
On issuance of shares8,991
 
Fair value adjustments recognized in profit or loss(1,068) (6,650)
At December 317,923
 1,273
 2019 2018
 £'000s £'000s
January 1996
 875
Impact of changes in foreign exchange rates(12) 15
Unwinding of discount factor119
 106
December 311,103
 996

There is no material difference between the fair value and carrying value of the financial liability.
For the amount recognized as at December 31, 2017,2019, of £1,103 thousand, the effect when some of theseif underlying parameters wouldassumptions were to deviate up or down is presented in the below table.following table (assuming the probability of success does not change):
 
Volatility
(up / down
10% pts)
 
Time to
maturity
(up / down
6 months)
 £'000s £'000s
Variable up1,921
 1,677
Base case, reported fair value1,273
 1,273
Variable down694
 843
20. Financial commitments


Discount rate
(up / down
1 % pt)
Revenue
(up / down
10 % pts)
 £'000s£'000s
Variable up1,0671,135
Base case, reported fair value1,1031,103
Variable down1,1411,071

As of December 31, 2017, the Company was committed to making the following payments under non-cancellable operating leases related to its facilities.
 
Land and
Buildings
 
Land and
Buildings
 2016 2017
 £'000s £'000s
Operating lease obligations:   
Within one year270
 291
Between one and five years
 277
Total270
 568

F-36154

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

21.22. Related parties transactions and other shareholder matters
(i)    Related party transactions
The Directors have authority and responsibility for planning, directing and controlling the activities of the Company and they therefore comprise key management personnel as defined by IAS 24, ("Related Party Disclosures").
Directors and key management personnel remuneration is disclosed in note 8.
(ii)    Other shareholder matters
The Company has entered into the following arrangements with parties who are significant shareholders of the Company, though they are not classed as related parties.
The Company entered into relationship agreements with Vivo CapitalVentures Fund VIII ("VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. (collectively, "Vivo Capital"), Orbimed Private Investments VI L.P. ("Orbimed"), and Abingworth Bioventures VI L.P. ("Abingworth"), and Arix Bioscience plc ("Arix") and Arthurian Life Sciences SPV GP Limited, ("Arthurian"). As agreed in these relationship agreements, the above parties invested in the Company as part of the July 2016 Placement, and the Company agreed to appoint representatives designated by Vivo Capital, OrbiMed Abingworth, and Arix and Arthurian,Abingworth to the board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair and Dr. Ken Cunningham respectively.Sinclair.
The appointment rights within the relationship agreement with Arix and Arthurian terminated on closing of the Global Offering on April 26, 2017;2017. Dr Cunningham has agreed to continue to serve on the Company's board of directors as an independent director. The respective appointment rights under the remaining relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of the issued ordinary shares, or (ii) the ordinary shares ceasing to be admitted to AIM.
Piers Morgan, Chief Financial Officer of the Company, and his spouse purchased 88,415 ordinary shares in total for £53 thousand from the market in the year ended December 31, 2019 (2018: £nil).
Dr. Jan-Anders Karlsson, Chief Executive Officer of the Company, purchased 3,250 ordinary shares for £5 thousand from the market in the year ended December 31, 2018. There was no similar transaction as at December 31, 2019.
Dr. David Ebsworth, Chairman of the Company, purchased 247,600 ordinary shares for £124 thousand from the market in the year ended December 31, 2019 (2018: £14 thousand).
At December 31, 2018, there was a receivable of £126 thousand due from one director and two key management personnel relating to tax due on RSUs that vested in the year ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. There was no such balance as at December 31, 2019.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
22. Events after the reporting date
On February 3, 2020, the Company announced the appointment of David Zaccardelli as chief executive officer with effect from February 1, 2020, following the retirement of Jan-Anders Karlsson, PhD. The Company also entered into a management rights agreement with Novo A/S under which Novo A/S was entitled to appoint an observer to the Board;announced the appointment rights within the management rights agreement terminated on closing of the Global Offering on April 26, 2017.Mark Hahn as chief financial officer with effect from March 1, 2020, as successor to Piers Morgan.





F-37155
000s

 £'000s
Net cash used in operating activities£(5,588) £(20,696) $(28,000)£(33,820) $(44,876) £(18,111)
Net cash used in investing activities(41) (49,469) (66,927)
Net cash from financing activities41,203
 63,246
 85,566
Net cash generated from investing activities37,799
 50,155
 5,281
Net cash used in financing activities(426) (565) 
Net increase / (decrease) in cash and cash equivalents£35,574
 £(6,919) $(9,361)£3,553
 $4,714
 £(12,830)
The decreaseincrease in net cash used in operating activities to £20.7£33.8 million for the year ended December 31, 20172019, from £5.6£18.1 million for the year ended December 31, 20162018, was primarily due to an increase in loss before taxation driven by higher research and development costs.
Theoperating activities of £15.5 million, which principally comprises the increase in netclinical trial and other research expenditure amounting to £14.2 million together with an increase in General and Administrative expenditure of £1.3 million, each of which are described further above.
Net cash used in(used in) / generated from investing activities to £49.5predominantly reflects the net movement of cash being placed on deposit for more than three months and such deposits maturing, because deposits of more than three months are disclosed as short-term investments, separately from cash. Net cash generated from investing activities was £37.8 million for the year ended December 31, 20172019, compared to net cash generated from £41 thousandinvesting activities of £5.3 million for the year ended December 31, 20162018. In 2019, there was duea net decrease in short-term deposits of three months or more reflecting a higher value of short-term deposits maturing, and being transferred to placing funds raised incash, than being placed. We balance the Global Offering on termobjective of obtaining higher interest income from longer-term deposits with maturitiesshort-term liquidity requirements.

There was £0.4 million repayment of more than three months at inception.
The net cash of £63.2 million received fromfinance lease liabilities in financing activities to for the year ended December 31, 2017 was the cash raised from the Global Offering. The £41.2 million received2019, relating to payments for leased office space. There were no financing activities for the year ended December 31, 2016 was the cash received from the sale of our equity securities and warrants in connection with the July 2016 Placement.2018.
Operating and Capital Expenditure Requirements
As of December 31, 2017,2019, we had an accumulated loss of £49.3£100.6 million. We expect to continue to incur significant operating losses for the foreseeable future as we continue our research and development efforts and seek to obtain regulatory approval and commercialization of RPL554ensifentrine and any future product candidate we develop.
We anticipate that our expenses will increase substantially if and as we:

initiate and conduct our plannedPhase 3 clinical trials for RPL554ensifentrine for the maintenance treatment of COPDCOPD;
continue the clinical development of our DPI and as a treatment for acute COPD;pMDI formulations of ensifentrine and research and develop other formulations of ensifentrine;
initiate and conduct our plannedfurther clinical trials for RPL554ensifentrine for the treatment of CF;
continue the research and development ofacute COPD, CF or any other formulations of RPL554, including developing our DPI andpMDI formulations of RPL554;indication;
initiate and progress pre-clinical studies relating to other potential indications of RPL554;ensifentrine;
seek to discover and develop additional product candidates;
seek regulatory approvals for any of our product candidates that successfully completescomplete clinical trials;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize any products for which we may obtain regulatory approval;
maintain, expand and protect our intellectual property portfolio;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts and to support our continuing operations as a UK and U.S. public company listed on the Nasdaq;company; and
experience any delays or encounter any issues from any of the above, including but not limited to failed studies, complex results, safety issues or other regulatory challenges.
We expectThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had an accumulated loss of £101.1 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that our existingits cash and cash equivalents, and short-term investments will enable uswould be sufficient to fund ourits operating expenses and capital expenditure requirements throughfor at least 12 months from the endissuance date of ourthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 2 development of nebulized RPL554 and our proof-of-concept development with DPI and pMDI formulations of RPL5543 program for the maintenance treatment of COPD as well as our Phase 2 development of nebulized RPL554once it believes it has alignment with the FDA on its planned design for the treatment of CF. We have basedPhase 3 clinical program. The Company will require significant additional funding to initiate and complete this estimate on assumptions that may prove to be wrong,Phase 3 program and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of RPL554 and any future product candidates and because the extent to which we may enter into collaborations with third parties for development of RPL554 is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of RPL554. Our future capital requirements for RPL554 or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for RPL554 or any future product candidates and the potential that we may be required to conduct additional clinical trials for RPL554;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of RPL554 or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for RPL554 or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to RPL554 any future product candidates;
any licensing or milestone fees we might have to pay during future development of RPL554 or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of RPL554 or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of RPL554 or any future product candidates, if approved.

Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantialsecure the required capital to fund the program.   The Company will seek additional funds to achieve our business objective.
Adequatefunding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional funds may not be available to usfinance on acceptable terms, or at all. all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial condition.
To the extent that we raise additional capital through the sale of equity or convertible debt securities, yourthe ownership interest of our shareholders and ADS holders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect yoursuch holders’ rights as a shareholder.shareholder or ADS holder. Any future debt financing or preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute yourour security holders’ ownership interests.

If we raised additional funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.
Our future capital requirements for ensifentrine or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for ensifentrine or any future product candidates and the potential that we may be required to conduct additional clinical trials for ensifentrine;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of ensifentrine or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for ensifentrine or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to ensifentrine or any future product candidates;
any licensing or milestone fees we might have to pay during future development of ensifentrine or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of ensifentrine or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of ensifentrine or any future product candidates, if approved.
Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantial additional funds to achieve our business objective.
C. Research and Development, Patent and Licenses, etc.
For a discussion of our research and development activities, including amounts spent on company-sponsored research and development activities for the last three financial years, see “ItemItem 4.B. Business Overview”Overview and “ItemItem 5.A. Operating Results.
D. Trend Information
Other than as disclosed elsewhere in this Annual Report, we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our net revenues, income from continuing operations, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions. For more information, see “ItemItem 4.B. Business Overview,” “Item Item 5.A. Operating Results, and “ItemItem 5.B. Liquidity and Capital Resources.
E. Off-Balance Sheet Arrangements
During the periods presented, we did not, and we do not currently, have any off-balance sheet arrangements.
F. Contractual Obligations and Commitments
The table below summarizes ourCompany has contractual obligations at December 31, 2017.
 Payments Due by Period
 Total 
Less than
1 year
 
1 - 3
years
 
3 - 5
years
 
More than
5 years
 (£000's)
Operating lease obligations568
 291
 277
 £— £—
Total568
 291
 277
 £— £—
commitments for office space, in London and New York. After the adoption of IFRS 16 these are recognized as right of use assets on the Consolidated Statement of Financial Position. As a result they are not disclosed as operating lease liabilities.
The table above does not includeCompany has assumed contingent obligationliability payments we may be required to make under the VernalisLigand Agreement because the amount, timing and likelihood of payment are not known. Such additional payment obligationsliabilities may be material. See sections titled "— License Agreement with Vernalis"Ligand" and "Business — VernalisLigand Agreement."

In addition, we enter into contracts in the ordinary course of business with contract research organizations, ("CROs")or CROs, to assist in the performance of our research and development activities and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the table of contractual obligationsliabilities and commitments.



Selected Quarterly Financial Data (unaudited)
Selected quarterly results from operations for the year ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts).
 Fiscal 2017 Quarter Ended
 December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017
 £'000s £'000s £'000s £'000s
Research and development costs9,689
 6,085
 4,838
 3,105
General and administrative costs998
 2,040
 1,969
 1,032
 Fiscal 2016 Quarter Ended
 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
 £'000s £'000s £'000s £'000s
Research and development costs1,868
 1,409
 522
 723
General and administrative costs1,085
 752
 350
 311


ITEM 6: DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
A. Executive Officers and Directors
The following table presents information about our executive officers, directors, and directors,other key members of management, including their ages as of February 27, 2017:

the date of this Annual Report:
Name Age Position
Executive Officers    
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharm.D. 6355 President, Chief Executive Officer and Director
Piers Morgan 5153 Chief Financial Officer
Kenneth Newman,Claire Poll52General Counsel
Kathleen Rickard, M.D. 6061 Chief Medical Officer
Peter Spargo, Ph.D.Other Key Management 56
Richard Hennings50Vice President and Commercial Head
Desiree Luthman60Vice President, Regulatory Affairs
Tara Rheault44Vice President, R&D Operations and Global Project Management
Peter Spargo58 Senior Vice President, Chemistry Manufacturing and Controls
Claire Poll51Legal Counsel
Richard Hennings48Commercial Director
Desiree Luthman58Vice President, Regulatory Affairs
Non-Executive Directors    
Ken Cunningham, M.D.(2)
67Non-executive Director
David Ebsworth, Ph.D.(1,2,3)
 6365 Chairman of the Board
Ken Cunningham, M.D.(2)
65Non-executive Director
Rishi Gupta(2)
 4042 Non-executive Director
Mahendra Shah, Ph.D.(3)
 7375 Non-executive Director
Andrew Sinclair, Ph.D.(1)
 4648 Non-executive Director
Vikas Sinha(1)
 5456 Non-executive Director
Anders Ullman, Ph.D.(3)
 6264Non-executive Director
Martin Edwards, M.D.64 Non-executive Director
(1)Audit and Risk Committee member
(2)Remuneration Committee member
(3)Governance Committee member
The current business addresses for our executive officers and board of directors is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE, the United Kingdom.
The following are brief biographies of our executive officers and directors:
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharma.D. Dr. KarlssonZaccardelli has served as our President and Chief Executive Officer and on our board of directors since June 2012.February 2020. From January 2005December 2018 until its acquisition by Swedish Orphan Biovitrum for up to May 2012,$915 million in November 2019, Dr. KarlssonZaccardelli served as President and CEO of Dova Pharmaceuticals, a US company developing therapeutics for rare diseases. Previously, he was Acting CEO of Cempra, from December 2016 until the company’s merger with Melinta Therapeutics in November 2017. From 2004 until 2016, Dr Zaccardelli served in several senior management roles at United Therapeutics Corporation, including Chief ExecutiveOperating Officer, of S*BIO Pte Ltd, a biotechnology company in Singapore. Previously to S*BIO, Dr. Karlsson wasChief Manufacturing Officer and Executive Vice President, Pharmaceutical Development and headOperations. Prior to United Therapeutics, he founded and led a start-up company focused on contract research positions and held a variety of Pharma Global Researchclinical research positions at Bayer HealthCare AG in Germany.Burroughs Wellcome & Co, Glaxo Wellcome, and Bausch & Lomb Pharmaceutical. Dr. KarlssonZaccardelli received an M.Sc. in pharmacy from Uppsala University and a Doctor of Medical Science (Ph.D.) in clinical experimental pharmacologyPharm.D. from the University of Lund.Michigan.
Piers Morgan. Mr. Morgan has served as our Chief Financial Officer since September 2016. From November 2015 to September 2016, Mr. Morgan was an independent consultant. From May 2014 to November 2015, Mr. Morgan was the Chief Executive Officer of C4X Discovery plc, a biotechnology company. Prior to C4X, Mr. Morgan co-founded uniQure N.V., a biotechnology company, in Amsterdam, where he served as Chief Financial Officer from December 2009 to May 2014. Mr. Morgan is a member of the Institute of Chartered Accountants in England and Wales and received an M.A. in law and management studies from the University of Cambridge.
Kenneth NewmanKathleen Rickard, M.D. , M.D.Dr. NewmanRickard has served as our Chief Medical Officer since January 2015. From December 2013February 2019. Prior to December 2014,joining Verona Pharma, Dr. Newman was Chief Development OfficerRickard served in multiple roles at Mesoblast Inc.,Aerocrine AB, a biotechnology company. From 2010 to November 2013, Dr. Newman wasmedical diagnostics product company, including as Chief Medical Officer from April 2011 to January 2019, and as Chief Compliance Officer from April 2014 to January 2019. Prior to Aerocrine, Dr. Rickard was Vice President Clinical Development and Medical Affairs of Acton Pharmaceuticals, Inc.,the Respiratory Medicines Development Centre at GlaxoSmithKline, a specialtypharmaceutical

company, and, over a period of 15 years, held a number of other leadership positions in clinical development across GlaxoSmithKline’s global respiratory pharmaceutical company, which was acquired by Meda Pharmaceuticals, Inc.franchise. Dr. NewmanRickard received an M.D. from theHahnemann University of Texas Health Science Center at Houston and an M.B.A. in management from the University of Cincinnati College of Business.
Peter Spargo, Ph.D. Dr. Spargo has served as our Senior Vice President, Chemistry Manufacturing and Controls since May 2014. From January to October 2015, Dr. Spargo also served as Senior Vice President, CMC at Spinifex Pharmaceuticals Inc., a biotechnology company, that was acquired by Novartis International AG. From 2011 to 2013, Dr. Spargo was Senior Vice President, CMC at Creabilis SA, a pharmaceutical company. Dr. Spargo received an M.A. in natural sciences and a Ph.D. in synthetic organic chemistry from Cambridge University.Hospital, Philadelphia.
Claire Poll. Ms. Poll has served as LegalGeneral Counsel since September 2016. From September 2015 to August 2016, Ms. Poll served as an advisor to us on legal, general corporate and financing matters. She also served as an

Executive Director on our board of directors from September 2006 until September 2015. Ms. Poll received a Bachelor of Laws from the University of Western Australia and a Diploma in Applied Finance and Investment from the Securities Institute of Australia.
Desiree Luthman, DDS.David Ebsworth,Ph.D. Dr LuthmanDr. Ebsworth has served as the Non-Executive Chairman of our Vice President, Regulatory Affairsboard of directors since June 2017.December 2014. From October 2009 to August 2014, Dr. LuthmanEbsworth served as Chief Executive Officer of Vifor Pharma, based in Zürich, the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012, Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. In his earlier career, Dr. Ebsworth worked with Bayer AG for over 19 years, heading the Canadian, North American and global pharmaceutical business. He also served as Chief Executive Officer of Oxford Glycosciences, a biotech company, listed on the London Stock Exchange and Nasdaq, which was acquired by Celltech plc (now part of UCB) in 2003. Dr. Ebsworth received a Ph.D. in industrial relations from the University of Surrey.
Ken Cunningham, M.D. Dr. Cunningham has served as a Non-Executive Director on our board of directors since September 2015. Dr. Cunningham has over 25 years’ experience in the pharmaceutical industry including leadership roles at several companies focused on developing respiratory medicines. Between 2008 and 2010, he was at SkyePharma plc (now part of Vectura Group plc), initially as Chief Operating Officer and subsequently as Chief Executive Officer where he was involved in the late-stage development of flutiform for asthma. Earlier in his career, Dr. Cunningham held a variety of clinical development and commercial strategy roles at GlaxoWellcome plc and Warner-Lambert. Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena Holdings (US) LLC and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Martin Edwards, M.D. Dr. Edwards has served as a Non-Executive Director on our board of directors since April 2019. Since 2003, Dr. Edwards has held various positions at Novo Holdings, a life sciences investment firm, and most recently as part-time Senior Partner. Earlier in his career, he was Corporate VP and Global Head of Drug Development for Novo Nordisk, where he led all aspects of pre-clinical and clinical drug development. Dr. Edwards currently serves on the boards of directors of Kalvista Pharmaceuticals Inc, F2G Ltd, Harmony Biosciences Inc, Karus Therapeutics Ltd, Nuvelution Pharma Inc, and Vantia Therapeutics Ltd. Dr. Edwards trained in physiology and medicine at the University of Manchester. He is a Member of the Royal College of Physicians, a Member with distinction of the Royal College of General Practitioners, a Fellow of the Faculty of Pharmaceutical Medicine and holds a MBA from the University of Warwick.
Rishi Gupta. Mr. Gupta has served as a Non-Executive Director on our board of directors since July 2016. Mr. Gupta was designated for appointment to our board of directors by OrbiMed Private Investments VI, LP, or OrbiMed, pursuant to our relationship agreement with OrbiMed. Since 2002, Mr. Gupta has held various positions at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Partner. Prior to that, he was a healthcare investment banker at Raymond James & Associates, served as manager of corporate development at Veritas Medicine and was a summer associate at Wachtell, Lipton. Mr. Gupta currently is a member of the board of directors of Avitide, Inc., Turnstone Biologics, Inc., Attenua, Inc, EnLiven Therapeutics, Inc, and Pionyr Immunotherapeutics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016. Dr. Shah was designated for appointment to our board of directors by funds affiliated with Vivo Capital pursuant to our relationship agreement with such funds. Dr. Shah is a successful pharmaceutical entrepreneur and executive and, since March 2010, has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah serves as a member of the board of directors of Scilex Pharmaceuticals, Inc., Fortis Inc., Citrine Medicines, Inc., and several private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India.
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Dr. Sinclair was designated for appointment to our board of directors by Abingworth Bioventures VI, LP, or Abingworth, pursuant to our relationship agreement with Abingworth.Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received

a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Mr. Sinha has over 20 yearsyears’ experience working in executive finance roles in the life sciences industry. Mr. Sinha is co-founder and Chief Financial Officer of regulatory experienceElevateBio, Inc., a holding company focused on building cell and gene therapy companies. He also serves as President and Chief Financial Officer of AlloVir, Inc., an ElevateBio portfolio company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of Alexion Pharmaceuticals, Inc., a biotechnology company, where he was responsible for finance, business development, strategy, investor relations and IT. Prior to joining Alexion, Mr. Sinha held various positions with Bayer AG in the United States, Japan, Germany and Canada, including both largeVice President and small pharmaceutical companies across different regionsChief Financial Officer of Bayer Pharmaceuticals Corporation in the United States and different therapeutic areas. From 2015 to 2017,Vice President and Chief Financial Officer of Bayer Yakuhin Ltd. in Japan. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. LuthmanUllman has served as Senior Regulatorya Non-Executive Director Global Inflammation - Immunocology Therapeutic Areaon our board of directors since September 2015. From 2016 to 2018, Dr. Ullman served as Head of the COPD Centre at Sanofi.Sahlgrenska University Hospital, Sweden. From 2013 to 2015,2014, he was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 2007 to 2013, Dr. LuthmanUllman was Executive Vice President, Head of Research and Development at Nycomed Pharma Private Limited (now part of Takeda Pharmaceuticals Company Limited), where he led the development and approval of Daxas, the PDE4 inhibitor used to prevent COPD exacerbations. Earlier in his career, he held a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb.number of roles in AstraZeneca. Dr. LuthmanUllman serves on the board of directors of Pexa AB. Dr. Ullman received a doctorateM.D. and a Ph.D. in dentistryclinical pharmacology from the Karolinska Institute, Stockholm, Sweden.University of Gothenburg.
Other Senior Management
The following are brief biographies of other members of the senior management team that participate in leading ensifentrine's development.
Richard Hennings. Mr. Hennings has served as ourVice President and Commercial DirectorHead since March 2017. From May 2016 to March 2017, Mr. Hennings was the Global Marketing Director for AstraZeneca UK Limited, a biopharmaceutical company. Since July 2015, Mr. Hennings has been a director of Hennings Consulting Ltd., where he consults with healthcare organizations on commercial strategy. From January 2012 to June 2015, Mr. Hennings held various positions at Gilead Sciences, Inc., a biopharmaceutical company, most recently as Commercial Director — EMEA Planning & Operations. Mr. Hennings received a bachelor's degree in applied chemistry from the University of Portsmouth.
David Ebsworth,Desiree Luthman, DDS. Dr. Luthman has served as our Vice President, Regulatory Affairs since June 2017. From 2015 to 2017, Dr. Luthman served as Senior Regulatory Director, Global Inflammation — Immunoncology Therapeutic Area at Sanofi S.A., a multinational pharmaceutical company. From 2013 to 2015, Dr. Luthman was a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb Company, a pharmaceutical company. Dr. Luthman received a doctorate in dentistry from the Karolinska Institute, Stockholm, Sweden.
Tara Rheault, Ph.D. Dr. EbsworthRheault has served as our Vice President, R&D and Global Project Management since January 2019. From August 2015 to January 2019, Dr. Rheault served as Senior Director, Strategic Drug Development at IQVIA, a multinational company serving the Non-Executive Chairmancombined industries of our board of directors since December 2014. From October 2009health information technologies and clinical research, where she helped pharmaceutical companies develop integrated commercial and R&D strategies. Prior to IQVIA, from September 2002 to August 2014,2015, Dr. EbsworthRheault served in various roles at GlaxoSmithKline, most recently as Chief Executive Officer of Vifor Pharma, based in Zürich,Clinical Leader within the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012,respiratory therapy area. Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. Dr. EbsworthRheault received a Ph.D. in industrial relationsorganic chemistry from North Dakota State University and a Master in Public Health from the University of Surrey.North Carolina.
Ken Cunningham, M.D.Peter Spargo, Ph.D. Dr. CunninghamSpargo has served as a Non-Executive Director on our board of directorsSenior Vice President, Chemistry Manufacturing and Controls since September 2015.May 2014. From January to October 2015, Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena plc and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Rishi Gupta. Mr. Gupta hasSpargo served as a Non-Executive Director on our board of directors since July 2016.  Since 2002, Mr. Gupta has held various positionsSenior Vice President, CMC at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Private Equity Partner. Mr. Gupta currently is a member of the board of directors of Avitide, Inc. and Turnstone Biologics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from the Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016.  Since March 2010, Dr. Shah has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah is also the founder and Executive Chair of Semnur Pharmaceuticals, Inc., a specialty pharmaceutical company. Dr. Shah serves as a member of the board of directors of Fortis Inc., a specialty pharmaceuticals company, Crinetics Pharmaceuticals, Inc., Soleno Therapeutics, Inc., Impel Neuropharma, Inc., and several other private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Since January 2018, Mr. Sinha has served as an Executive Partner of MPM Capital, Inc., a life sciences investment company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of AlexionSpinifex Pharmaceuticals Inc., a biotechnology company. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. Ullman has served as a Non-Executive Director on our board of directors since September 2015. Since 2016, he has served as Head of the COPD Centre at Sahlgrenska University Hospital,

Sweden.company, that was acquired by Novartis International AG. From 2013 to 2014, Dr. Ullman was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 20072011 to 2013, Dr. UllmanSpargo was ExecutiveSenior Vice President, Head of Research and DevelopmentCMC at Nycomed Pharma Private Limited, which was acquired by Takeda Pharmaceutical Company Limited.Creabilis SA, a pharmaceutical company. Dr. UllmanSpargo received a M.D.an M.A. in natural sciences and a Ph.D. in clinical pharmacologysynthetic organic chemistry from the University of Gothenburg.Cambridge University.
Family Relationships
There are no family relationships among any of the members of our board of directors and executive officers.

B. Compensation
Executive Officer Remuneration
The following table sets forth the approximate remuneration paid during the year ended December 31, 20172019, to our current executive officers.officers, who are the members of our administrative, supervisory, and management bodies.
Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation
(£)
 
Total
(£)
Jan-Anders Karlsson, Ph.D.290,000
 254,000
 1,632,055
 29,165
(3) 
 2,205,220
Chief Executive Officer         
Piers Morgan(4)
210,000
 73,500
 945,464
 12,600
(3) 
 1,241,564
Chief Financial Officer         
Kenneth Newman, M.D. 273,221
 53,581
 937,718
 21,987
(4) 
 1,286,508
Chief Medical Officer         
Peter Spargo, Ph.D. 190,000
 46,550
 641,564
 
  878,114
Senior Vice President of Chemistry, Manufacturing and Controls         
Claire Poll170,000
 59,650
 574,033
 4,517
(3) 
 808,200
Legal Counsel         
Richard Hennings119,231
 36,200
 198,258
 7,154
(3) 
 360,843
Commercial Director         
Desiree Luthman(5)
113,743
 22,884
 126,756
 
  263,383
Vice President, Regulatory Affairs         
Total1,366,195
 546,365
 5,055,849
 75,422
  7,043,832


Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation(3)
(£)
 
Total
(£)
David Zaccardelli
 
 
 
 
President and Chief Executive Officer (4)
         
Piers Morgan243,000
 59,535
 179,413
 14,580
 496,528
Chief Financial Officer         
Kathleen Rickard272,901
 263,227
 265,132
 5,307
 806,567
Chief Medical Officer         
Claire Poll214,000
 67,410
 128,151
 6,420
 415,981
General Counsel         
Total729,901
 390,172
 572,696
 26,307
 1,719,076
(1) 
Amount shown reflectsreflect bonuses awarded for achievement of performance goals, including retention bonuses in 2017.2019. 
(2) 
Amount shown represents the aggregate grant date fair value of option and restricted stockshare units awards granted in 20172019 measured using the Black Scholes model. For a description of the assumptions used in valuing these awards, see note 16 to our Annual Consolidated Financial Statements included elsewhere in this prospectus.Annual Report. 
(3) 
Amount shown represents health benefits payments and pension contributions made by us.
(4) 
Amount shown represents health benefits payments made by us. Dr. Zaccardelli was appointed as our President and Chief Executive Officer, effective as of February 1, 2020.
(5)

Mrs Luthman began her employment with us on June 12, 2017.
Executive Officer Employment Agreements
Jan-Anders Karlsson, Ph.D.David S. Zaccardelli, Pharm.D.
We entered into an employment agreement with Dr. KarlssonZaccardelli on April 30, 2012, which was subsequently amended.February 1, 2020. This agreement as amended, entitles Dr. KarlssonZaccardelli to receive an annual base salary of £290,000$750,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Annual RSUs, and a target annual bonus opportunity of 66%50% of his annual base salary. The Annual RSUs vest in equal quarterly installments during the calendar year in which the grant occurs, subject to continued employment. Pursuant to his employment agreement, Dr. Zaccardelli is also entitled to receive (i) an award of restricted stock units, subject to approval at our annual general meeting of shareholders in 2020, equal to 4% of our outstanding ordinary shares and (ii) an additional award of restricted units if the Company raises additional equity capital during fiscal year 2020, which is intended to result in Dr. Zaccardelli’s equity awards (other than the portion of his base salary (potentially extendingpayable in restricted stock units) being equal to up4% of our outstanding ordinary shares on the applicable date of issuance. These awards of restricted stock units will vest as to 132%)25% on the first anniversary of Dr. Zaccardelli’s employment commencement date and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment.
If Dr. Zaccardelli’s employment is terminated by us without "Cause" or by Dr. Zaccardelli for "Good Reason" (as each such term is defined in his offer agreement), withthen, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) 18 months (or 12 months if the amounttermination occurs after the second anniversary of any such bonus based on annual performance criteria to be agreed between usMr. Zaccardelli’s employment commencement date) of base salary continuation and Dr. Karlsson. By June 1, 2017, Dr. Karlsson was required to investcontinued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to £130,000 in our company through150% (or 100% if the purchasetermination occurs after the second anniversary of our ordinary shares. Dr. Karlsson is also entitled to participate in

a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate theZaccardelli’s employment agreement by giving the other party not less than 12 months' written notice, provided that we may terminatecommencement date) of Dr. Karlsson at any time with immediate effect for cause or by giving written notice to Dr. Karlsson that we shall pay, in lieu of notice, his basic salary during the 12 months following termination, a pro-ratedZaccardelli’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Karlsson is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares)unused paid time-off, and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. See "— Equity Compensation Arrangements" below. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Dr. Zaccardelli’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Dr. Zaccardelli’s employment commencement date.
If payments to Dr. KarlssonZaccardelli would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by

Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Karlsson'sZaccardelli’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Dr. Karlsson is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Dr. Karlsson's employment agreementZaccardelli has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Kenneth Newman,Jan-Anders Karlsson, Ph.D.
We and Dr. Karlsson entered into a separation agreement, or the Karlsson Separation Agreement, pursuant to which we and Dr. Karlsson agreed that he would no longer serve as chief executive officer, director or officer, effective as of February 2, 2020, and that his employment with us will terminate effective as of February 28, 2020, or the Separation Date. Dr. Karlsson agreed to help transition his duties to Dr. Zaccardelli. Pursuant to the Karlsson Separation Agreement, Dr. Karlsson agreed to execute a general release of claims, or the Karlsson Settlement Agreement, and he is entitled to receive cash severance payments in the aggregate amount of £982,160, payments for continued medical and life insurance benefits until the first anniversary of the Separation Date and continued pension contributions until the first anniversary of the Separation Date, subject to his compliance with the terms of the Karlsson Separation Agreement, the Karlsson Settlement Agreement and his employment agreement. Additionally, equity awards will either be vested as of the Separation Date, will be forfeited as of the Separation Date, or will be unvested as of the Separation Date and will either vest according to the applicable vesting schedule, or will be forfeited as of February 28, 2021, unless an earlier change in control event occurs, Dr. Karlsson dies or we breach the terms of the Karlsson Separation Agreement or the Karlsson Settlement Agreement.
Kathleen Rickard, M.D.
We entered into an offer letter with Dr. NewmanRickard on December 15, 2014, which was subsequently amended,13, 2018, pursuant to which heshe agreed to serve as our Chief Medical Officer, effective JanuaryFebruary 1, 2015.2019. This agreement entitles Dr. NewmanRickard to receive an annual base salary of $340,000$390,000 and a target annual bonus opportunity of 40% of hisher annual base salary, with the amount of any such bonus based on performance criteria for our company and hisher individual performance, as determined by the board of directors in its sole discretion. Dr. Newman'sRickard was also entitled to receive a sign-on bonus of $50,000, payable on the date of the offer letter, and is entitled to receive a retention bonus of $250,000, with $125,000 payable on April 1, 2019 and $125,000 payable on April 1, 2020, subject to Dr. Rickard being employed at the applicable date of payment and with the condition that each retention bonus payment is repayable if she resigns or is terminated for "Cause" within 12 months of payment. Subject to the approval of our board of directors and our share dealing policy, Dr. Rickard's offer letter also entitled himher to receive a stock option to purchase 250,00070,000 of our ordinary shares at an exercise priceADSs and to be issued 15,000 restricted stock units with respect to ADSs under the terms of £1.25 per ordinary share,the Company's equity incentive plan, half of which vests in full uponequal proportions on the earlier of (a) thefirst, second and third anniversary of the grant date or (b)and half in equal proportions on the first, second, third and fourth anniversary of the grant date, subject to accelerated vesting upon a change in control. The exercise price of control.the stock option to purchase ADSs will be determined according to the terms of the Company's equity incentive plan at the date of grant. The offer letter with Dr. NewmanRickard also provides that for so long as Dr. Newmanshe is eligible for medical continuation coverage under the Consolidated Omnibus Budget Reconciliation Act, or COBRA, from his previous employer or until we establish a health insurance plan in which he is eligibleentitled to participate Dr. Newman will receive reimbursement for monthly premiums paid for such medical continuation coveragein the Company's 401(k) plan and reimbursement for any premiums he pays for private long-term disability insurance (uphealthcare plans generally available from time to $800 per month).time to employees of the Company based in the U.S.
If Dr. Newman'sRickard's employment is terminated by us without "Cause" or by Dr. NewmanRickard for "Good Reason" (as each such term is defined in hisher offer agreement), then, subject to hisher signing and not revoking a general release of claims, heshe is entitled to receive (i) six monthsfour weeks of base salary continuation, (ii) six monthsfour weeks of continued payment of premiums for continued medical coverage under COBRA, (iii) a pro-rated portion of the annual bonus that heshe otherwise would have earned in the year of termination based on actual performance in such year and (iv) if the date of termination occurs within the six-month period immediately preceding the third anniversary of the date of grant of the stock option to purchase 250,000 of our ordinary shares, such stock option will vest in full. The offer agreement also provides that, if Dr. Newman's employment is terminated by us without Cause or by Dr. Newman for Good Reason, in either case within 12 months following a change of control, then, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) nine months of base salary continuation, (ii) nine months of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that he would otherwise have earned in the year of termination based on actual performance in such year. If payments to Dr. Newman would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Newman's receipt, on an after-tax basis, of the greater amount of the payment.
Piers Morgan
We entered into an employment agreement with Mr. Morgan on September 24, 2016, which was subsequently amended, pursuant to which he agreed to serve as our Chief Financial Officer, effective September 26, 2016. This agreement entitles Mr. Morgan to receive an annual base salary of £210,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% (potentially extending to up to 50%) of his salary, with the

amount of any such bonus based on performance criteria for our company and his individual performance, as determined by our board of directors in its sole discretion. Within 12 months after receiving any such bonus payment, Mr. Morgan is expected to invest an amount equal to 25% of the bonus (net of income tax paid by Mr. Morgan) in our company through the purchase of our ordinary shares.shares until he has invested an amount equal to £200,000. Pursuant to this agreement, on September 16, 2016, Mr. Morgan received an option to purchase 300,000 of our ordinary shares with an exercise price of £2.04 per ordinary share, which vests in equal proportions on the first, second and third anniversary of the grant date of September 26, 2016. Mr. Morgan is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.

Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Mr. Morgan at any time with immediate effect for cause or by giving written notice to Mr. Morgan that we shall pay, in lieu of notice, his basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Mr. Morgan is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares) and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Mr. Morgan would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Morgan's receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Mr. Morgan is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Mr. Morgan's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Peter Spargo, Ph.D.
We and Mr. Morgan entered into an employmenta separation agreement, with Dr. Spargo on April 1, 2014, which was subsequently amended. Pursuant to this agreement, Dr. Spargo agreed to serve as our Senior Vice President, Chemistry Manufacturing and Controls, effective April 1, 2014. This agreement, as amended, entitles Dr. Spargo to receive an annual base salary of £190,000 and a target annual bonus opportunity of up to 35% of his annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed between us and Dr. Spargo. Dr. Spargo is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Dr. Spargo at any time with immediate effect for cause or by giving written notice to Dr. Spargo that we shall pay, in lieu of notice, his basic salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Spargo is entitled to receive his full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Dr. Spargo would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Spargo's receipt, on an after-tax basis, of the greater amount of the payment. Dr. Spargo's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Claire Poll
We entered into an agreement for consulting services with Ms. Poll on March 28, 2007, or the Poll ConsultingMorgan Settlement Agreement, pursuant to which Ms. Poll provided corporate managerial services to us. We also entered into an agreement for director serviceswe and Mr. Morgan agreed that his employment with Ms. Poll on Marchus will terminate effective as of February 28, 2007 pursuant to which Ms. Poll served on our board of directors2020, or the Poll Director Services Agreement.Separation Date. The Morgan Settlement Agreement contains a general release of claims in our favour. Pursuant to a letter agreement that we entered intothe Morgan Settlement Agreement, Mr. Morgan is entitled to cash severance payments in the aggregate amount of £276,550, payments for continued life insurance benefits for six months following the Separation Date and continued pension contributions for six months following the Separation Date, subject to his compliance with Ms. Poll on September 21, 2015, Ms. Poll retired from our boardthe terms of directors and the Poll Director Services Agreement was terminated, effective September 10, 2015. The letter agreement further provided that an annual aggregate

remuneration of £70,000 payable under both the Poll ConsultingMorgan Settlement Agreement and Poll Director Services Agreement wouldhis employment agreement. Additionally, equity awards will either be paid undervested as of the Separation Date, or will be forfeited as of the Separation Date.
Claire Poll Consulting Agreement.
We entered into an employment agreement with Ms. Poll on October 1, 2016 pursuant to which Ms. Poll agreed to serve as our LegalGeneral Counsel, effective September 1, 2016. This agreement, as amended, entitles Ms. Poll to receive an annual base salary of £170,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% of her annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed to between us and Ms. Poll. Pursuant to this agreement, on September 13, 2016, Ms. Poll received an option to purchase a total of 200,000 of our ordinary shares with an exercise price of £1.89 per ordinary share, which vests in equal proportions on the first three anniversaries of the date of grant. Ms. Poll is also entitled to participate in a workplace pension scheme that we contribute to on her behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Ms. Poll at any time with immediate effect for cause or by giving written notice to Ms. Poll that we shall pay, in lieu of notice, her basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Ms. Poll is entitled to receive her full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Ms. Poll would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Ms. Poll's receipt, on an after-tax basis, of the greater amount of the payment. Ms. Poll's employment agreement also contains restrictive covenants pursuant to which she has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following her termination of employment.
Richard HenningsMark W. Hahn
We entered into an employment agreement with Mr. HenningsMark Hahn on March 27, 2017,February 1, 2020 pursuant to which he agreed to commence employment with us on February 1, 2020 and serve as our Commercial Director,Chief Financial Officer, effective March 27, 2017.1, 2020. This agreement entitles Mr. HenningsHahn to receive an annual base salary of £155,000,$500,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Hahn Annual RSUs, and a target annual bonus opportunity of up to 35%50% of his annual base salary, withsalary. The Hahn Annual RSUs vest in equal quarterly installments during the amount of any such bonus based on annual performance criteriacalendar year in which the grant occurs, subject to be agreed between us and Mr. Hennings.continued employment. Pursuant to his employment agreement, and subject to approval at our annual general meeting of shareholders in 2020, Mr. HenningsHahn is also entitled to receive (a)(i) an optionaward of restricted stock units equal to purchase a total of 160,0003% of our outstanding ordinary shares, withor the First RSU Award, and (ii) an exercise priceadditional award of restricted stock units during or prior to our first open trading window following the date

that is six months after his employment commencement date, or the Reference Date, equal to 1% of our Nasdaq listing priceoutstanding ordinary shares, or the Second RSU Award. The First RSU Award and the Second RSU Award will vest as to 25% on the first anniversary of Mr. Hahn’s employment commencement date or the Reference Date, respectively, and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment. In the event that the Company raises additional equity capital during fiscal year 2020, which is intended to result in Mr. Hahn’s equity awards (other than the portion of his base salary payable in restricted stock units) being equal to 4% of our outstanding ordinary shares on the applicable date of grant (£1.32)issuance. These awards of restricted stock units will vest as to 75% of the award, on the same vesting schedule as the First RSU Award, and (b) restricted share units withas to 25% of the award, on the same vesting schedule as the Second RSU Award, subject to continued employment.
If Mr. Hahn’s employment is terminated by us without "Cause" or by Mr. Hahn for "Good Reason" (as each such term is defined in his offer agreement), then, subject to his signing and not revoking a grant date fair valuegeneral release of approximately £40,000. Mr. Hennings is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice. The employment agreement provides that, upon a change of control, Mr. Henningsclaims, he is entitled to receive his(i) 18 months (or 12 months if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of base salary continuation and continued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to 150% (or 100% if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of Mr. Hahn’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and unused paid time-off and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Mr. Hahn’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Mr. Hahn’s employment commencement date.
If payments to Mr. HenningsHahn would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Hennings'Hahn’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of US and UK income tax rates, Mr. Hennings is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to UK taxes during the period of his employment with us. Mr. Hennings' employment agreementHahn has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Desiree Luthman, DDS.
We entered into an employment agreement with Ms Luthman on May 1, 2017, pursuant to which she agreed to serve as our Vice-President Regulatory Affairs, effective June 15, 2017. This agreement entitles Ms Luthman to receive an annual base salary of $265,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of up to 25% of her annual base salary, with the amount of any such bonus based on annual performance criteria to be agreed between us and Ms Luthman. Pursuant to her employment agreement, Ms Luthman is also entitled to receive an option to purchase a total of 20,000 of our ADSs under the terms of the

Company's equity incentive plan. The ADSs relate to 160,000 ordinary shares and the exercise price is £1.32 per ordinary share.
If Ms Luthman's employment is terminated by us without "Cause" or by Ms Luthman for "Good Reason" (as each such term is defined in her offer agreement), then, subject to her signing and not revoking a general release of claims, she is entitled to receive (i) eight weeks of base salary continuation, (ii) eight weeks of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that she otherwise would have earned in the year of termination based on actual performance in such year.
Equity Compensation Arrangements
In May 2017, we closed the initial public offering of our American Depositary Shares in the United States and a private placement of our ordinary shares in Europe, together the global offering. Prior to the global offering, we issued option grants under two option schemes, the Unapproved Share Option Scheme, or the Unapproved Scheme, adopted by our board of directors on September 18, 2006, and the EMI Option Scheme, or the EMI Scheme, adopted by our board of directors on July 24, 2012. Discussions in this section regarding the Unapproved Scheme or the EMI Scheme that refer to our board of directors include any designated committee of our board of directors. Since the adoption of the 2017 Incentive Award Plan, (as defined below),or the 2017 Incentive Plan, no further awards are being made under either the Unapproved Scheme or the EMI Scheme.
EMI Option Scheme
Under the EMI Scheme, eligible employees were granted tax‑efficient options to purchase our ordinary shares. Options were granted to eligible employees who were contracted to work for us or a qualifying subsidiary for at least 25 hours a week, or, if less than 25 hours a week, for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price and in accordance with a vesting schedule determined by our board of directors at the time of grant and expire 10 years from the date of grant.
Unapproved Share Option Scheme
Under the Unapproved Scheme, we granted non‑tax‑qualifying options to purchase our ordinary shares. Options were granted to employees, directors or consultants to acquire our ordinary shares at a price determined by our board of directors. In general, the options granted under the Unapproved Scheme are exercisable at a price and in accordance with the vesting period determined by our board of directors at the date of grant and expire 10 years from the date of grant.

Certain Transactions
Under the EMI Scheme and the Unapproved Scheme, if certain changes are made in, or events occur with respect to, our ordinary shares (including any capitalization, sub-division, reduction or other variation of our ordinary shares), any outstanding awards may be adjusted in terms of the number of ordinary shares subject to an option and the exercise price as our board of directors may determine appropriate on a fair and reasonable basis. In the event of certain corporate transactions, including a change of control, scheme of arrangement, merger, demerger or liquidation, the vesting and exercisability of all options will accelerate and, to the extent not exercised, will lapse within certain time periods defined in the applicable plan rules.
Amendment and Termination
Our board of directors may at any time amend the rules of the EMI Scheme or the Unapproved Scheme in any manner, except that no amendment may be made if, in the reasonable opinion of our board of directors, it would materially abrogate or adversely affect the subsisting rights of an option holder regarding existing options, unless the amendment is made either (i) with the written consent of the number of option holders that hold options to acquire 50% of the ordinary shares that would be delivered if all options granted and subsisting under the scheme, as applicable, were exercised; or (ii) by a resolution at a meeting of option holders passed by not less than 50% of the option holders holding options under the scheme, as applicable, who attend and vote either in person or by proxy. The EMI Scheme and the Unapproved Scheme are discretionary and may be suspended or terminated by us at any time. Suspension or termination will not affect any options granted under the schemes to the extent that they are subsisting at the date of the suspension or termination.


The following table summarizes the options that we granted to our directors and executive officers under the EMI Scheme and Unapproved Scheme in 2016:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 100,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 3.30
 February 9, 2016
 February 9, 2026
 500,000
 1.80
 August 3, 2016
 August 3, 2026
Piers Morgan300,000
 2.04
 September 26, 2016
 September 26, 2026
Kenneth Newman, M.D. 60,000
 2.00
 February 9, 2016
 February 9, 2026
 200,000
 1.80
 August 3, 2016
 August 3, 2026
Peter Spargo, Ph.D. 20,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 1.80
 August 3, 2016
 August 3, 2026
Claire Poll200,000
 1.89
 September 13, 2016
 September 13, 2026
Richard Hennings
 
 
 
Patrick Humphrey
 
 
 
David Ebsworth
 
 
 
Anders Ullman
 
 
 
Ken Cunningham
 
 
 
Rishi Gupta
 
 
 
Mahendra Shah
 
 
 
Vikas Sinha
 
 
 
Andrew Sinclair
 
 
 
2017 Incentive Plan
We have adoptedUnder the 2017 Incentive Plan, under which we may grant cash and equity‑based incentive awards to eligible service providers in order to attract, retain and motivate the persons who make important contributions to us. The material terms of the 2017 Incentive Plan are summarized below. Except where the context indicates otherwise, references hereunder to our ordinary shares shall be deemed to include a number of ADSs equal to an ordinary share.
Eligibility and Administration
Our employees, consultants and directors, and employees and consultants of our subsidiaries, are eligible to receive awards under the 2017 Incentive Plan. The 2017 Incentive Plan is administered by our board of directors, which may delegate its duties and responsibilities to one or more committees of our board of directors and/or officers (referred to collectively as the plan administrator below), subject to the limitations imposed under the 2017 Incentive Plan, stock exchange rules and other applicable laws. The plan administrator has the authority to take all actions and make all determinations under the 2017 Incentive Plan, to interpret the 2017 Incentive Plan and award agreements and to adopt, amend and repeal rules for the administration of the 2017 Incentive Plan as it deems advisable. The plan administrator also has the authority to determine which eligible service providers receive awards, grant awards, set the terms and conditions of all awards under the 2017 Incentive Plan, including any vesting and vesting acceleration provisions, and designate whether such awards will cover our ordinary shares or ADSs, subject to the conditions and limitations in the 2017 Incentive Plan.
Sub-Plan
The 2017 Incentive Plan authorizedauthorizes the administrator to establish one or more sub-plans. Immediately after the 2017 Incentive Plan had beenwas established, the administrator established a sub-plan. The sub-plan incorporated all of the terms of the 2017 Incentive Plan, except that only employees of ours (or our subsidiaries) were eligible to receive awards under the sub-plan. Awards under the sub-plan counted towards the total number of shares available for issuance under the 2017 Incentive Plan. The sub-plan is an "employees' share scheme" for the purposes of the UK Companies Act 2006.

Shares Available for Awards
An aggregate of 6,333,000 of our ordinary shares were initially made available for issuance under the 2017 Incentive Plan. The number of shares initially available for issuance will be increased by an annual increase on January 1 of each calendar year beginning in 2018 and ending in and including 2027 equal to the least of (A) 4% of our ordinary shares outstanding on the final day of the immediately preceding calendar year and (B) a smaller number of shares determined by our board of directors. As of January 1, 2020, the number of shares available for issuance was 5,499,058. Pursuant to the terms of the 2017 Incentive Plan, awards may be issued under the 2017 Incentive Plan covering ADSs in lieu of the number of our ordinary shares that such ADSs represent. No more than 5,000,000 shares may be issued under the 2017 Incentive Plan upon the exercise of incentive options. Shares issued under the 2017 Incentive Plan may be authorized but unissued shares, shares purchased on the open market, treasury shares or ADSs.

If an award under the 2017 Incentive Plan, the EMI Option Scheme, the Unapproved Share Option Scheme or any prior equity incentive plan, expires, lapses or is terminated, exchanged for cash, surrendered, repurchased, canceled without having been fully exercised or forfeited, any unused shares subject to the award will, as applicable, become or again be available for new grants under the 2017 Incentive Plan. Awards granted under the 2017 Incentive Plan in substitution for any options or other equity or equity-based awards granted by an entity before the entity's merger or consolidation with us or our acquisition of the entity's property or stock will not reduce the shares available for grant under the 2017 Incentive Plan, but will count against the maximum number of shares that may be issued upon the exercise of incentive options.
Awards
The 2017 Incentive Plan provides for the grant of options, share appreciation rights, or SARs, restricted shares, dividend equivalents, restricted share units, or RSUs, and other share or cash based awards. All awards under the 2017 Incentive Plan will be set forth in award agreements, which will detail the terms and conditions of awards, including any applicable vesting and payment terms and post-termination exercise limitations. A brief description of each award type follows.
Options and SARs.    Options provide for the purchase of our ordinary shares in the future at an exercise price set on the grant date. SARs entitle their holder, upon exercise, to receive from us an amount equal to the appreciation of the shares subject to the award between the grant date and the exercise date. The plan administrator will determine the number of shares covered by each option and SAR, the exercise price of each option and SAR and the conditions and limitations applicable to the exercise of each option and SAR.
Restricted Shares and Restricted Share Units.    Restricted shares are an award of nontransferable ordinary shares that remain forfeitable unless and until specified conditions are met and which may be subject to a purchase price. RSUs are contractual promises to deliver our ordinary shares in the future, which may also remain forfeitable unless and until specified conditions are met and may be accompanied by the right to receive the equivalent value of dividends paid on our ordinary shares prior to the delivery of the underlying shares. The plan administrator may provide that the delivery of the shares underlying RSUs will be deferred on a mandatory basis or at the election of the participant. The terms and conditions applicable to restricted shares and RSUs will be determined by the plan administrator, subject to the conditions and limitations contained in the 2017 Incentive Plan.
Other Share or Cash Based Awards.    Other share or cash based awards are awards of cash, fully-vested our ordinary shares and other awards valued wholly or partially by referring to, or otherwise based on, our ordinary shares or other property. Other share or cash based awards may be granted to participants and may also be available as a payment form in the settlement of other awards, as standalone payments and as payment in lieu of compensation to which a participant is otherwise entitled. The plan administrator will determine the terms and conditions of other share or cash based awards, which may include any purchase price, performance goal, transfer restrictions and vesting conditions.
Performance Criteria
The plan administrator may select performance criteria for an award to establish performance goals for a performance period. Performance criteria under the 2017 Incentive Plan may include, but are not limited to, the following: net earnings or losses (either before or after one or more of interest, taxes, depreciation, amortization, and non-cash equity-based compensation expense); gross or net sales or revenue or sales or revenue growth; net income (either before or after taxes) or adjusted net income; profits (including but not limited to gross profits, net profits, profit growth, net operation profit or economic profit), profit return ratios or operating margin; budget or operating earnings (either before or after taxes or before or after allocation of corporate overhead and bonus); cash flow (including operating cash flow and free cash flow or cash flow return on capital); return on assets; return on

capital or invested capital; cost of capital; return on shareholders' equity; total shareholder return; return on sales; costs, reductions in costs and cost control measures; expenses; working capital; earnings or loss per share; adjusted earnings or loss per share; price per share or dividends per share (or appreciation in or maintenance of such price or dividends); regulatory achievements or compliance; implementation, completion or attainment of objectives relating to research, development, regulatory, commercial, or strategic milestones or developments; market share; economic value or economic value added models; division, group or corporate financial goals; customer satisfaction/growth; customer service; employee satisfaction; recruitment and maintenance of personnel; human resources management; supervision of litigation and other legal matters; strategic partnerships and transactions; financial ratios (including those measuring liquidity, activity, profitability or leverage); debt levels or reductions; sales-related goals; financing and other capital raising transactions; cash on hand; acquisition activity; investment sourcing activity; and marketing initiatives, any of which may be measured in absolute terms or as compared to any incremental increase or decrease. Such performance goals also may be based solely by reference to the company's performance or the performance of a subsidiary, division, business segment or business unit of the company or a subsidiary, or based upon performance relative

to performance of other companies or upon comparisons of any of the indicators of performance relative to performance of other companies. When determining performance goals, the plan administrator may provide for exclusion of the impact of an event or occurrence which the plan administrator determines should appropriately be excluded, including, without limitation, non-recurring charges or events, acquisitions or divestitures, changes in the corporate or capital structure, events unrelated to the business or outside of the control of management, foreign exchange considerations, and legal, regulatory, tax or accounting changes.
Certain Transactions
In connection with certain corporate transactions and events affecting our ordinary shares, including a change in control, another similar corporate transaction or event, another unusual or nonrecurring transaction or event affecting us or its financial statements or change in any applicable laws or accounting principles, the plan administrator has broad discretion to take action under the 2017 Incentive Plan to prevent the dilution or enlargement of intended benefits, facilitate the transaction or event or give effect to the change in applicable laws or accounting principles. This includes canceling awards for cash or property, accelerating the vesting of awards, providing for the assumption or substitution of awards by a successor entity, adjusting the number and type of shares subject to outstanding awards and/or with respect to which awards may be granted under the 2017 Incentive Plan and replacing or terminating awards under the 2017 Incentive Plan. In addition, in the event of certain non-reciprocal transactions with our shareholders, the plan administrator will make equitable adjustments to the 2017 Incentive Plan and outstanding awards as it deems appropriate to reflect the transaction. Pursuant to the terms of their individual employment agreements, awards granted under the 2017 Incentive Plan to certain of our executives may become fully vested and exercisable upon a change in control.
Plan Amendment and Termination
Our board of directors may amend or terminate the 2017 Incentive Plan at any time; however, no amendment, other than an amendment that increases the number of shares available under the 2017 Incentive Plan, may materially and adversely affect an award outstanding under the 2017 Incentive Plan without the consent of the affected participant and shareholder approval will be obtained for any amendment to the extent necessary to comply with applicable laws. Further, the plan administrator cannot, without the approval of our shareholders, amend any outstanding option or SAR to reduce its price per share or cancel any outstanding option or SAR in exchange for cash or another award under the 2017 Incentive Plan with an exercise price per share that is less than the exercise price per share of the original option or SAR. The 2017 Incentive Plan will remain in effect until the tenth anniversary of its effective date unless earlier terminated by our board of directors. No awards may be granted under the 2017 Incentive Plan after its termination.
Non-U.S. Participants, Claw-Back Provisions, Transferability and Participant Payments
The plan administrator may modify awards granted to participants who are non-U.S. nationals or employed outside the United States or establish sub-plans or procedures to address differences in laws, rules, regulations or customs of such foreign jurisdictions. All awards will be subject to any company claw-back policy as set forth in such claw-back policy or the applicable award agreement. Except as the plan administrator may determine or provide in an award agreement, awards under the 2017 Incentive Plan are generally non-transferrable, except by will or the laws of descent and distribution, or, subject to the plan administrator's consent, pursuant to a domestic relations order, and are generally exercisable only by the participant. With regard to tax withholding obligations arising in connection with awards under the 2017 Incentive Plan, and exercise price obligations arising in connection with the exercise of options under the 2017 Incentive Plan, the plan administrator may, in its discretion, accept cash, wire

transfer or cheque,check, our ordinary shares that meet specified conditions, a promissory note, a "market sell order," such other consideration as the plan administrator deems suitable or any combination of the foregoing.
2017
2019 Grants
The following table summarizes the options that we granted to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 1,385,598
 1.32
 April 26, 2017 April 26, 2027
Piers Morgan802,690
 1.32
 April 26, 2017 April 26, 2027
Kenneth Newman, M.D. 796,128
 1.32
 April 26, 2017 April 26, 2027
Peter Spargo, Ph.D. 544,681
 1.32
 April 26, 2017 April 26, 2027
Claire Poll487,347
 1.32
 April 26, 2017 April 26, 2027
Richard Hennings160,000
 1.32
 April 26, 2017 April 26, 2027
Desiree Luthman160,000
 1.32
 April 26, 2017 April 26, 2027
Vikas Sinha120,384
 1.32
 April 26, 2017 April 26, 2027
David Ebsworth
 
  
Anders Ullman
 
  
Ken Cunningham
 
  
Rishi Gupta
 
  
Mahendra Shah
 
  
Andrew Sinclair
 
  
NameOrdinary Shares Underlying Options
 
Exercise
Price
Per Share (£)

 
Grant
Date
 
Expiration
Date
        
Kathleen Rickard560,000
 0.57
 April 01, 2019 March 29, 2029
Piers Morgan359,430
 0.57
 April 01, 2019 March 29, 2029
Claire Poll256,735
 0.57
 April 01, 2019 March 29, 2029

The following table summarizes the RSUs that we granted on April 1, 2019, to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Restricted
Share Units Granted

Jan-Anders Karlsson, Ph.D., M.D. Kathleen Rickard346,395120,000
Piers Morgan200,669
Kenneth Newman, M.D. 199,016
Peter Spargo, Ph.D. 136,16893,247
Claire Poll121,835
Richard Hennings48,153
David Ebsworth
Anders Ullman
Ken Cunningham
Rishi Gupta
Mahendra Shah
Vikas Sinha
Andrew Sinclair66,603

The options and RSUs (other than those granted to Messrs. Hennings and Sinha) vest as to 50% of the ordinary shares in three substantially equal annual installments following the grant date and as to 50% of the ordinary shares in four substantially equal annual installments following the grant date. The options and RSUs granted to

Messrs. Hennings and Sinha vest in three substantially equal annual installments following the grant date. This description relates to the options and RSUs granted in connection with the global offering.
Non-Employee Directors Remuneration
The following table sets forth the remuneration paid during 20172019 to our current non-employee directors:
Name
Annual
Fees
(£)
 
Total
(£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Patrick Humphrey8,750
 8,750
NameFees (£)
 Total (£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Martin Edwards22,500
 22,500
Non-Employee Director Service Contracts
The remuneration of the non-executive directors is determined by our board as a whole, based on a review of current practices in other companies. We have entered into service contracts with our directors for their services, which are subject to a three-month termination period.
Pension, Retirement or Similar Benefits
We operate a defined contribution pension scheme which is available to all UK employees. The total amount set aside or accrued by us to provide pension, retirement or similar benefits to our current directors and our executive officers with respect to 20172019 was £41,671,£30,000, which represents contributions made by us in 20172019 in respect of a defined contribution scheme in which Dr. Karlsson, Ms. Poll, Mr. HenningsMs. Rickard, and Mr. Morgan participated.

C. Board Practices
Composition of our Board of Directors
Our Board is comprised of eightnine members. In accordance with our Articles of Association, one third of our directors retire from office at every annual general meeting of shareholders. However, if the number of directors serving on our Board is not divisible by three, then the number nearest but not exceeding 33.3% shall retire from office at each annual general meeting of shareholders. Retiring directors are eligible for re-election and, if no other director is elected to fill his or her position and the director is willing, shall be re-elected by default.

The expiration of the current terms of the members of our board of directors and the period each member has served in that term are as follows:

NameYear Current Term BeganNext year of re-election
Jan-Anders Karlsson, Ph.D.20122020
David Ebsworth, Ph.D.20142018
Ken Cunningham, M.D.20152019
Rishi Gupta20162021
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162019
Vikas Sinha20162021
Anders Ullman, M.D., Ph.D.20152018

NameYear Current Term BeganNext year of re-election
David Zaccardelli, Pharma.D.20202020
David Ebsworth, Ph.D.20182021
Ken Cunningham, M.D.20152022
Rishi Gupta20162020
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162022
Vikas Sinha20162020
Anders Ullman, M.D., Ph.D.20182021
Martin Edwards, M.D.20192021
There are no arrangements or understanding between us and any of the members of our board of directors providing for benefits upon termination of their service.

Committees of our Board of Directors
Our Board has three standing committees: an Audit and Risk Committee, a Remuneration Committee and a Nomination and Governance Committee.
Audit and Risk Committee of the Board
The Audit and Risk Committee, which consists of Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair, , assists the Board in overseeing our accounting and financial reporting processes and the audits of our financial statements. Mrstatements and monitoring UK Governance Code compliance and business risk. Mr. Sinha serves as Chairman of the Audit and Risk Committee. The Audit and Risk Committee consists of members of our Board who are financially literate and are also considered to be "audit committee financial experts" as defined by applicable SEC rules and have the requisite financial sophistication as defined under the applicable Nasdaq rules and regulations. Our Board has determined that all of the members of the Audit and Risk Committee satisfy the "independence" requirements set forth in Rule 10A-3 under the Exchange Act. The Audit and Risk Committee will beis governed by a charter that complies with Nasdaq rules.
The Audit and Risk Committee's responsibilities include:include, among other things:
recommending the appointment of the independent auditor to the general meeting of shareholders; 
the appointment, compensation, retention and oversight of the independent auditor; 
pre-approving the audit services and non-audit services to be provided by ourthe independent auditor before the auditor is engaged to render such services;
evaluating the independent auditor's qualifications, performance and independence, and presenting its conclusions to our Board on at least an annual basis; 
reviewing and discussing with the executive officers, our Board and the independent auditor our financial statements and our financial reporting process; and 
considering and recommending to our Board whether the audited financial statements be approved.approved; and
monitoring our review and mitigation of corporate and operational risk.
The Audit and Risk Committee will meetmeets as often as one or more members of the Committee deem necessary, but in any event willmust meet at least four times per year. The Audit and Risk Committee willmust meet at least once per year with our independent auditor, without our executive officers being present.

Remuneration Committee of the Board
The Remuneration Committee, which consists of Dr. Ken Cunningham, Dr. David Ebsworth and Rishi Gupta, assists the Board in determining directors’ and senior executives’executive officers’ compensation. Dr Cunningham serves as Chairman of the Committee.
The Remuneration Committee's responsibilities include:include, among other things:
identifying, reviewing and proposing policies relevant to the compensation of the Company’s directors and executive officers; 
evaluating each executive officer's performance in light of such policies and reporting to the Board; 
analyzing the possible outcomes of the variable remuneration components and how they may affect the remuneration of the executive officers; 
recommending any equity long-term incentive component of each executive officer's compensation in line with the remuneration policy and reviewing our executive officer compensation and benefits policies generally;
appointing and setting the terms of referenceengagement for any remuneration consultants who advise the Committee and obtain benchmarking data with respect to the directors' and executive officers’ compensation; and 
reviewing and assessing risks arising from our compensation policies and practices.
Nomination and Governance Committee of the Board
The Nomination and Governance Committee, which consists of Dr. David Ebsworth, Dr. Mahendra Shah and Dr. Anders Ullman, assists our Board in identifying individuals qualified to become executive and non-executive directors of our Company consistent with criteria established by our Board and in developing our corporate governance principles. Dr Ebsworth serves as Chairman of the Committee.
The Nomination and Governance Committee's responsibilities include:include, among other things:

reviewing and evaluating the structure, size and composition of our Board and making recommendations with regard to any adjustments considered necessary; 
drawing up selection criteria and appointment procedures for Board members; 
identifying and nominating, for the approval of our Board, candidates to fill vacancies on theBoardthe Board and its corresponding committees; 
keeping under review the leadership needs of the Company, both executive and non-executive, and planning the orderly succession of such appointments; and
assessing the functioning of our Board and individual members and reporting the results of such assessment to the Board.

D. Employees
As of December 31, 2017, 20162019, 2018 and 2015,2017, we had 24, 15, and 15 employees, respectively, of which 13, 11, and 9 employees, respectively. All of our employees10 were based in the United Kingdom, except that, asrespectively, and the remainder of December 31, 2017, 2016 and 2015, we had one to four employeeswhich were based outside of the United Kingdom. All of our employees were engaged in either administrative or research and development functions. None of our employees are covered by a collective bargaining agreement.
E. Share Ownership
For information regarding the share ownership of members of our board and executive officers and arrangements involving our employees in our share capital, see “ItemItem 6.B. Compensation, Item 7.A. Major Shareholders”Shareholders and “ItemItem 7.B. Related Party Transactions.


ITEM 7: MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
A. MAJOR SHAREHOLDERS
The following table sets forth information relating to the beneficial ownership of our ordinary shares as of December 31, 20172019, by:
each person, or group of affiliated persons, that beneficially owns 3% or more of our outstanding ordinary shares;shares (including ordinary shares in the form of our ADSs);
each member of our board of directors and each of our other executive officers; and
all board members and executive officers as a group.
The number of ordinary shares beneficially owned by each entity, person, board member or executive officer is determined in accordance with the rules of the SEC, and the information is not necessarily indicative of beneficial ownership for any other purpose. Under such rules, beneficial ownership includes any shares over which the individual has sole or shared voting power or investment power as well as any shares that the individual has the right to acquire within 60 days of February 27, 2018December 31, 2019, through the exercise of any option, warrant or other right. Except as otherwise indicated, and subject to applicable community property laws, the persons named in the table have sole voting and investment power with respect to all ordinary shares held by that person.
The percentage of ordinary shares beneficially owned is computed on the basis of 105,017,400105,326,638 of our ordinary shares outstanding as of February 1, 2018.December 31, 2019. Ordinary shares that a person has the right to acquire within 60 days of December 31, 20172019 are deemed outstanding for purposes of computing the percentage ownership of the person holding such rights, but are not deemed outstanding for purposes of computing the percentage ownership of any other person, except with respect to the percentage ownership of all board members and executive officers as a group. As of February 1, 2018, 55,931,336December 31, 2019, 56,045,857 ordinary shares, representing 53% of our issued and outstanding ordinary shares (including ordinary shares in the form of our ADSs), were held by 1415 U.S. record holders. Unless otherwise indicated below, the address for each beneficial owner listed is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE UK.



   
 
Number of
Shares Beneficially Owned

Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113%
Vivo Capital affiliates (2)
13,811,58413%
OrbiMed Private Investments VI, LP (3)
11,871,11411%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01911%
Abingworth Bioventures VI, LP (5)
8,619,7748%
venBio Select Advisor (6)
7,000,0007%
Biodiscovery 4 FCPI (7)
6,652,3986%
Foresite (8)
5,000,0005%
Tekla Capital affiliates (9)
5,296,8455%
Aisling Capital IV, LP (10)
4,138,6434%
Arix Bioscience Holdings Ltd affiliates (11)
3,916,4934%
Canaccord Genuity Group, Inc.(12)

3,255,7923%
Executive Officers and Directors:  
Jan-Anders Karlsson, Ph.D.(13)
749,1421%
Piers Morgan (14)
100,000—%
Kenneth Newman, M.D.(15)
356,6651%
Claire Poll (16)
236,663—%
Richard Hennings—%
Peter Spargo, Ph. D.(17)
139,663—%
Ken Cunningham, M.D. —%
David Ebsworth, Ph.D.(18)
140,703—%
Rishi Gupta—%
Mahendrah Shah, Ph.D.—%
Andrew Sinclair, Ph.D.(19)
—%
Vikas Sinha (20)
22,222—%
Anders Ullman, Ph.D. —%
All executive officers and directors as a group (13 persons)1,745,0582%

 Number of Shares Beneficially Owned
Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113.22%
Vivo Capital affiliates (2)
13,811,58412.88%
OrbiMed Private Investments VI, LP (3)
11,871,11211.07%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01910.76%
Abingworth Bioventures VI, LP (5)
8,619,7658.08%
venBio Select Advisor (6)
7,000,0006.65%
Polar Capital Holdings plc (7)
5,368,8195.09%
Tekla Capital affiliates (8)
5,296,8454.99%
Aisling Capital IV, LP (9)
4,138,6433.91%
Executive Officers and Directors:  
David Zaccardelli, Pharm.D
Piers Morgan (10)
1,712,3621.60%
Kathleen Rickard, M.D.
Claire Poll (11)
799,141*
Ken Cunningham, M.D. 
Martin Edwards
David Ebsworth, Ph.D.(12)
400,303*
Rishi Gupta
Mahendra Shah, Ph.D.
Andrew Sinclair, Ph.D.
Vikas Sinha (13)
102,478*
Anders Ullman, Ph.D. 
All executive officers and directors as a group (12 persons)3,014,2842.83%
* Less than 1%.  
(1) 
Consists of (a) 12,389,985 ordinary shares held directly by Novo A/S, or Novo, and (b) warrants to purchase 1,769,626 ordinary shares. The board of directors of Novo A/S, or the Novo Board, has shared investment and voting control over the securities held by Novo and may exercise such control only with the support of a majority of the Novo Board. As such, no individual member of the Novo Board is deemed to hold any beneficial ownership or reportable pecuniary interest in the securities held by Novo. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D filed with the SEC on June 6, 2017.April 2, 2019. Novo's mailing address is Tuborg Havnevej 19, Hellerup, G7 2900, Denmark.Denmark
(2) 
Consists of (a) 2,388,728 ordinary shares held directly by Vivo Ventures Fund VI, L.P., or Vivo VI, of which 1,126,760 are held in the form of ADSs, (b) warrants to purchase 370,871 ordinary shares held directly by Vivo VI, (c) warrants to purchase 2,717 ordinary shares held directly by Vivo Ventures VI Affiliates Fund, L.P., or Vivo Affiliates VI, (d) 9,554,917 ordinary shares held directly by Vivo Ventures Fund VII L.P., or Vivo VII, of which 4,507,040 are held in the form of ADSs, (e) warrants to purchase 1,462,477 ordinary shares held directly by Vivo VII, (f)  warrants to purchase 31,874 ordinary shares held directly by Vivo Ventures VII Affiliates Fund, L.P., or Vivo Affiliates VII. Vivo Ventures VI, LLC , or Vivo Ventures VI, is the sole general partner of Vivo VI and Vivo Affiliates VI. Vivo Ventures VII, LLC, or Vivo Ventures VII, is the sole general partner of Vivo VII and Vivo Affiliates VII. Vivo Ventures VI and Vivo Ventures VII disclaim beneficial ownership of all shares held by Vivo VI, Vivo Affiliates VI, Vivo VII and Vivo Affiliates VII except to the extent of any pecuniary interest therein. The managing members of Vivo Ventures VI are Drs. Albert Cha, Edgar Engleman and Frank Kung, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo VI and Vivo Affiliates VI. The managing members of Vivo Ventures Vll are Drs. Albert Cha, Edgar Engleman, Frank Kung, Chen Yu and Mr. Shan Fu, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo Vll and Vivo Affiliates Vll. Mahendra Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.

Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.
(3) 
Consists of (a) 10,003,17510,003,174 ordinary shares held directly by OrbiMed Private Investments VI, LP, or OrbiMedOPI VI, of which 5,333,32810,003,168 are held in the form of ADSs and (b) warrants to purchase 1,867,9391,867,938 ordinary shares are held directly by OrbiMedOPI VI. OrbiMed Capital GP VI LLC, or GP VI, is the general partner of OrbiMedOPI VI. OrbiMed Advisors LLC, or OrbiMed Advisors, ispursuant to its authority as the sole managing member of GP VI. Samuel D. Isaly isVI, the managing membersole general partner of and owner of a controlling interest in OrbiMed Advisors. By virtue of such relationships, GPOPI VI, OrbiMed Advisors and Mr. Isaly may be deemed to have voting and investment power with respect toindirectly beneficially own the ordinary shares held by OrbiMedOPI VI. GP VI, andpursuant to its authority as a resultgeneral partner or OPI VI, may be deemed to have beneficial ownership of such shares. Rishi Gupta, an employee of OrbiMedindirectly beneficially own the ordinary shares held by OPI VI. As a result, Advisors is a member of our Board of Directors. Each ofand GP VI OrbiMedshare the power to direct the vote and to direct the disposition of the ordinary shares held by OPI VI. Advisors Mr. Isalyexercises this investment and Mr. Guptavoting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the ordinary shares held by OrbiMed VI, except to the extent of its or his pecuniary interest therein, if any.OPI VI. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D/A filed with the SEC on May 25, 2017. OrbiMed Advisors'January 26, 2018. The mailing address of OPI VI, GP VI and Advisors is 601 Lexington Avenue, 54th Floor, New York, NY 10022.

(4) 
Consists of (a) 9,757,393 ordinary shares held directly by Growth Equity Opportunities Fund IV, LLC, or GEO, of which 5,333,328 are held in the form of ADSs, and (c) warrants to purchase 1,769,626 ordinary shares held directly by GEO. New Enterprise Associates 15, L.P., or NEA 15, is the sole member of GEO. NEA Partners 15, L.P., NEA Partners 15, is the sole general partner of NEA 15. NEA 15 GP, LLC, or NEA 15 LLC, is the sole general partner of NEA Partners 15. Peter J. Barris, Forest Baskett, Anthony Florence, Jr., Krishnu Kolluri, David M. Mott, Scott D. Sandell, Peter Sonsini, Jon Sakoda, Ravia Viswanthan and Henry Weller are the managers of NEA 15 LLC. NEA 15, NEA Partners 15, NEA 15 LLC and the managers of NEA 15 LLC share voting and dispositive power with regard to the securities held by GEO. Each of NEA 15, NEA Partners 15 and NEA 15 LLC as well as each of the managers of NEA 15 LLC disclaims beneficial ownership of all shares held by GEO except to the extent of their actual pecuniary interest therein. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 8, 2017. GEO's mailing address is 1954 Greenspring Drive, Suite 600, Timonium, MD 21093-4135.
(5) 
Consists of (a) 7,215,5537,215,544 ordinary shares held directly by Abingworth Bioventures VI, LP, or Abingworth VI, all of which 3,705,000 are held in the form of ADSs, and (b) warrants to purchase 1,404,221 ordinary shares held directly by Abingworth VI. Abingworth Bioventures VI GP LP, or Abingworth GP VI, serves as general partner of Abingworth VI. Abingworth General Partner VI LLP, or Abingworth General Partner VI, serves as general partner of Abingworth GP VI. Abingworth General Partner VI has delegated to Abingworth LLP, all investment and dispositive power over the securities held by Abingworth VI. An Abingworth LLP investment committee comprised of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris approves investment and voting decisions of Abingworth VI by a majority vote, and no individual member has the sole control or voting power over the securities held by Abingworth VI. Abingworth GP VI, Abingworth General Partner VI, Abingworth LLP and each of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris disclaim beneficial ownership of securities held by Abingworth VI, except to the extent, if any of their pecuniary interest therein. Andrew Sinclair is a Partner and Portfolio Manager at Abingworth LLP and a member of our board of directors. Dr. Sinclair does not have voting or dispositive power over any of the securities held by Abingworth Vl. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 9, 2017. Abingworth VI's mailing address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(6) 
Consists of 7,000,000 ordinary shares held in the form of ADSs by VenBio Select Advisor. This information is based on information known to us. The mailing address for VenBio Select Advisor is 120 W 45th St #2802, New York, NY 10036
(7) 
Consists of (a) 5,767,5855,300,000 ordinary shares of which (a) 4,500,000 ordinary shares are held directly by Polar Biotechnology Fund, or PBF, (b) 800,000 are held by PBF in the form of ADSs, by Biodiscovery 4 FCPI, or Biodiscovery, and (b)(c) warrants to purchase 884,81368,819 ordinary shares held directly by Biodiscovery.PBF. PBF and PCGH are managed by Polar Capital Holdings plc, or PCH. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 5, 2017. The mailing address for Biodiscovery is 47 rue du Faubourg Saint-Honoré75401 Cedex 08 Paris FranceSeptember 9, 2019 and information known to us.
(8)
Consists of 5,000,000 ordinary shares held in the form of ADSs by Foresight Capital Management. This information is based on information known to us. The mailing address for Foresight Capital Management is [600 Montgomery Street, Suite 4500, San Francisco, CA 94111
(9) 
Consists of (a) 4,412,031 ordinary shares held directly by Tekla World Healthcare Fund, or Tekla World, of which  2,200,000 are held in the form of ADSs, (b) warrants to purchase 513,192 purchase ordinary shares held directly by Tekla World, and (c) warrants to purchase 371,622 ordinary shares held directly by Tekla Life. Tekla Capital Management LLC, or Tekla Capital, is an investment adviser registered pursuant to Section 203 of the Investment Advisers Act of 1940 and is the investment adviser of Tekla World and Tekla Life, each of which is a registered investment company pursuant to Section 8 of the Investment Company Act of 1940. Each of Tekla Capital and Daniel R. Omstead, through his control of Tekla Capital, has sole power to dispose of the shares beneficially owned by Tekla World and Tekla Life. Neither Tekla Capital nor Daniel R. Omstead has the sole power to vote or direct the vote of the shares beneficially owned by Tekla World and Tekla Life, which power resides in each fund's Board of Trustees. Tekla Capital carries out the voting of the shares under written guidelines established by each fund's Board of Trustees. Beneficial ownership information is based on information known to us and a Schedule 13G filed with the Securities and Exchange CommissionSEC on February 13, 2017.12, 2019. Tekla Capital's mailing address is 100 Federal Street, 19th Floor, Boston, MA 02110.
(10)(9) 
Consists of (a) 3,548,768 ordinary shares held directly by Aisling Capital IV, LP, or Aisling, of which 2,074,080 are held in the form of ADSs, and (b) warrants to purchase 589,875 ordinary shares held directly by Aisling. This information is based on information known to us and a TR-1 provided to us on June 6, 2017. The mailing address of Aisling is Aisling Capital, 888 Seventh Avenue, 12th Floor, New York, NY 1010610106.
(10)
Consists of (a) 147,009 ordinary shares, (b) 238,420 ordinary shares issuable from restricted stock units that will vest within 60 days of December 31, 2019 and (c) 1,326,933 options to purchase ordinary shares that are, or will be within 60 days of December 31, 2019, immediately exercisable.
(11) 
Consists of (a) 1,290,352 ordinary shares held directly by Arix Bioscience Holdings Ltd, or Arix, (b) warrants to purchase 516,141 ordinary shares held directly by Arix and (c) 2,110,000 ordinary shares held directly by Wales Life Sciences Investment Fund, or WLSIF. Arthurian Life Sciences Ltd, or Arthurian, is the general partner of WLSIF and a wholly owned subsidiary of Arix. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on August 3, 2016 and January 3, 2017. Arix's mailing address is 20 Berkeley Square, London W1J 6EQ, United Kingdom.

(12)
Canaccord Genuity Group Inc. is the beneficial owner of an aggregate of 3,255,792 ordinary shares held directly by (a) Hargreave Hale which holds 2,941,250130,575 ordinary shares and (b) Canaccord Genuity Wealth Management which holds 314,542 ordinary shares. This information is based on information known to us. The mailing address for Canaccord Genuity Group Inc. is 88 Wood Street, London, UK, EC2V 7QR.
(13)
Consists of (a) 89,150 ordinary shares and (b) 659,992668,566 options to purchase ordinary shares that are, or will be immediately exercisable within 60 days of February 1, 2018.December 31, 2019, immediately exercisable.
(14)
Consists of 100,000 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(15)
Consists of 356,665 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(16)(12) 
Consists of (a) 95,000 ordinary shares and (b) 141,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(17)
Consists of (a) 13,000 ordinary shares and (b) 126,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(18)
Consists of (a) 135,787395,387 ordinary shares and (b) warrants to purchase 4,916 ordinary shares.
(19)
Dr. Sinclair is a Partner and Portfolio Manager at Abingworth LLP. Dr. Sinclair does not have voting or dispositive power over any of the shares directly held by Abingworth Vl referenced in footnote (6) above. Dr. Sinclair's business address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(20)(13) 
Consists of (a) 22,222 ordinary shares and (b) options to purchase 80,256 ordinary shares that are or will be immediately exercisable withinwithint 60 days of February 1, 2018.December 31, 2019.
To our knowledge, and other than changesas provided in percentage ownership as a result of the shares issued in connectiontable above, our other filings with our initial public offering of our ADSs,the SEC and this Annual Report, there has been no significant change in the percentage ownership held by theany major shareholders listed aboveshareholder since January 1, 2017, except as discussed under the heading “Related Party Transactions.”2017.
The major shareholders listed above do not have voting rights with respect to their ordinary shares that are different from the voting rights of other holders of our ordinary shares.
ParticipationB. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2019 or currently in the Global Offering
In April 2017, the holders of 3% or moreeffect with any member of our common shares participated in the global offering as follows:board of directors and executive officers.
InvestorNumber of ADSs or shares subscribed forAggregate purchase price
Novo A/S740,740 ADSsUSD 9,999,990
Vivo Capital affiliates
563,380 ADSsUSD 7,605,630
OrbiMed Private Investments VI, LP
666,666 ADSsUSD 8,999,991
New Enterprise Associates, LP666,666 ADSsUSD 8,999,991
Abingworth Bioventures VI, LP
463,125 ADSsUSD 6,252,188
venBio Select Advisor
875,000 ADSsUSD 11,812,500
Biodiscovery 4 FCPI
444,444 ADSsUSD 5,999,994
Foresite600,000 ADSsUSD 8,100,000
Tekla Capital affiliates275,000 ADSsUSD 3,712,500
Aisling Capital IV, LP259,260 ADSsUSD 3,500,010
Arix Bioscience Holdings Ltd affiliates170,228 ADSsUSD 2,298,078
Canaccord Genuity Group, Inc.1,255,001 sharesGBP 1,656,601
Shareholder Private Placement
In May 2017, we issued and sold 13,373 ordinary shares to our Chairman, Dr. David Ebsworth, for aggregate gross proceeds to us of £18,000.

Registration Rights Agreement
In July 2016, we entered into a registration rights agreement that providedprovides certain demand registration rights to Abingworth Bioventures VI, LP, or Abingworth, Growth Equity Opportunities Fund IV, LLC, OrbiMed Private Investments VI, LP, or OrbiMed, and Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., and Vivo Ventures Fund VI Affiliates Fund, L.P., or collectively, Vivo Capital, with respect to the ordinary shares and any ADSs held by them.
Demand Registration Rights
At any time, the holders of at least a majority of the registrable securities as defined in the registration rights agreement have the right to demand that we effect an underwritten public offering of their registrable securities pursuant to an effective registration statement under the Securities Act. These registration rights are subject to specified conditions and limitations including the right of the underwriters, if any, to limit the number of shares included in any such registration under specified circumstances. Upon such a request, we are required to use commercially reasonable efforts to effect the public offering.
Expenses of Registration
We will pay all expenses relating to any registration under the registration rights agreement, other than selling commission, discounts or brokerage fees and stock transfer taxes, subject to specified conditions and limitations.
Termination of Registration Rights
The registration rights granted under the registration rights agreement shall terminate upon the earlier to occur of (i) the fifth anniversary of the closing of the global offering and (ii) the date on which there are no registrable securities remaining pursuant to the registration rights agreement.
Relationship Agreements
In June 2016, we entered into relationship agreements with each of Vivo Capital, OrbiMed, and Abingworth, pursuant to which our relationship with such parties is regulated and their influence over our corporate actions and activities, and the outcome of general matters pertaining to us, are limited. Pursuant to the relationship agreements, we also agreed to appoint representatives designated by Vivo Capital, OrbiMed, and Abingworth to our board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair, respectively. The appointment rights under the relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of our issued ordinary shares, or (ii) our ordinary shares ceasing to be admitted to AIM. In addition, each of the relationship agreements will automatically terminate upon the first date which Vivo Capital, OrbiMed, or Abingworth, as applicable, cease to have certain rights and obligations under the relationship agreements.
Indemnification Agreements
To the extent permitted by the U.K. Companies Act 2006, we are empowered to indemnify our directors against any liability they incur by reason of their directorship. We have also entered into a deed of indemnity with each of our directors and executive officers and this has been in place since March 31, 2017.officers. In addition to such indemnification, we provide our directors and executive officers with directors’ and officers’ liability insurance.
B. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2017 or currently in effect with any member of our board of directors and executive officers.
Agreements with Our Executive Officers and Directors
We have entered into employment agreements with certain of our executive officers and service agreements with our non‑employee directors. See Item 6B6.B. Compensation and noteNote 8 of our Annual Consolidated Financial Statements included elsewhere in this Annual Report.
Other Transactions
At December 31, 2019, there was a receivable of £nil (2018: £126 thousand) due from one director and two key management personnel relating to tax due on RSUs that vested in the financial statements.
Participation in U.S. Initial Public Offering
As partyear ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. The Company notes that the transaction that generated this receivable was potentially a breach of Section 402 of the global offering our Chairman, Dr. David Ebsworth, purchased 13,373 shares at £1.32 per share generating gross proceedsSarbanes-Oxley Act of £18 thousand. The transaction was on2002. See Item 3.D. Risk Factors-Risks Related to Our ADSs and Ordinary Shares. We may have inadvertently violated Section 13(k) of the same termsExchange Act (implementing Section 402 of the Sarbanes-Oxley Act of 2002) and may be subject to sanctions as third parties.a result.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
C. Interests of Experts and Counsel
Not applicable.


ITEM 8: FINANCIAL INFORMATION
A. Consolidated Statements and Other Financial Information.
Consolidated Financial Statements
Our consolidated financial statements are appended at the end of this Annual Report, starting at page F-1, and are incorporated herein by reference.
Legal Proceedings
We are not subject to any material legal proceedings.
Dividend Distribution Policy
We have never paid or declared any cash dividends on our ordinary shares, and we do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Under English law, among other things, we may only pay dividends if we have sufficient distributable reserves (on a non consolidatednon-consolidated basis), which are our accumulated realized profits that have not been previously distributed or capitalized less our accumulated realized losses, so far as such losses have not been previously written off in a reduction or reorganization of capital.
B. Significant Changes.
There have been no significant changes since December 31, 2017.

2019.

ITEM 9: THE OFFER AND THE LISTING
A. Offer and Listing Details.
Our Ordinary Shares are listed on AIM, a market of the London Stock Exchange, under the symbol “VRP”, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017. The initial public offering price of our ADSs was $13.50 per ADS. The following table sets forth for the periods indicated the high and low sales prices per common share as reported on The Nasdaq Global Market:
   
 Price Per Common ADS ($)
 HighLow
Year Ended December 31,  
2017 (from April 27 through December 31)16.9510.80
Quarter Ended  
Second Quarter 2017 (beginning April 27)16.2611.40
Third Quarter 201716.9511.54
Fourth Quarter 201715.7510.80
First Quarter 2018 (through February 16)13.2511.69
Month of  
August 201712.7011.80
September 201716.9511.96
October 201715.7513.35
November 201714.1310.80
December 201712.1011.30
January 201813.2512.21
February 2018 (through February 16)12.8011.693

Our ordinary shares have been trading on AIM, a market operated by the London Stock Exchange plc, under the symbol “VRP” since September 2006. The following table sets forth, for the periods indicated, the reported high and low closing sale prices of our ordinary shares on AIM in pounds sterling.

    
 Price Per Share (£)
 High Low
Year Ended December 31,   
20132.58 0.88
20142.18 0.53
20153.36 0.60
20162.16 1.19
20171.69 1.04
Quarter Ended   
First Quarter 20162.16 1.19
Second Quarter 20161.86 1.41
Third Quarter 20161.73 1.48
Fourth Quarter 20162.06 1.55
First Quarter 20171.69 1.25
Second Quarter 20171.61 1.11
Third Quarter 20171.53 1.12
Fourth Quarter 20171.48 1.04
First Quarter 2018 (through February 16)1.21 1.02
Month of   
August 20171.24 1.16
September 20171.53 1.12
October 20171.48 1.33
November 20171.34 1.06
December 20171.11 1.04
January 20181.21 1.06
February 2018 (through February 16)1.21 1.02

.
B. Plan of Distribution.
Not applicable.
C. Markets.
Our Ordinary Shares have beenare listed on the AIM, a market of the London Stock Exchange, since September 19, 2006, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017.Market.
D. Selling Shareholders.
Not applicable.
E. Dilution.
Not applicable.

F. Expenses of the Issue.
Not applicable.


ITEM 10: ADDITIONAL INFORMATION
A. Share Capital.
Not applicable.
B. Memorandum and Articles of Association.

A copy of our Articles of Association is attached as Exhibit 1.1 to this Annual Report. The information called for by this Item is set forth in responseExhibit 2.5 to this item is contained under the caption “Description of Share Capital and Articles of Association” in our final prospectus filed with the Securities and Exchange Commission on April 28, 2017Annual Report and is incorporated herein by reference.reference into this Annual Report.
C. Material Contracts.
TheIn addition to the contracts described elsewhere in this Annual Report, the following are summaries of each material contract, other than material contracts entered into in the ordinary course of business, to which we are a party for the two years preceding the date of this Annual Report.
Underwriting Agreement
On April 26, 2017, we entered into an underwriting agreement with Jefferies LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the underwriters, on April 26, 2017, for the initial public offering of 5,768,000 American Depositary Shares in the United States and the private placement of 1,255,001 ordinary shares in Europe. Pursuant to the underwriting agreement, we paid underwriting discounts and commissions of $0.9450 per ADS and £0.0924 per ordinary shares. The underwriting agreement contained customary representations and warranties. We also agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect of such liabilities.
Employment Agreements
We have entered into employment agreements with our executive officers. Information on the employment agreements may be found in this Annual Report under “Item 6.B. Compensation-Executive Officer Remuneration-Executive Officer Employment Agreements” and is incorporated herein by reference.
Indemnification Agreements
We have entered into indemnification agreements with our executive officers and board members. Information on the indemnification agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Indemnification Agreements” and is incorporated herein by reference.
Registration Rights Agreements
We have entered into registration rights agreement with certain of our existing shareholders. Information on the registration rights agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Registration Rights Agreement” and is incorporated herein by reference.
Relationship Agreements
We have entered into relationship agreements with certain of our existing shareholders. Information on these relationship agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Relationship Agreements” and is incorporated herein by reference.
Lease
Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, where we lease office space. We also lease office space in White Plains,New York , New York. The office space in these two locations is held under four leases that terminate between August 2018 and Januaryin 2020 and 2021. We pay £0.5 million per year under these leases we pay £0.3m per year.leases. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.

D. Exchange Controls.
There are no governmental laws, decrees, regulations or other legislation in the United Kingdom that may affect the import or export of capital, including the availability of cash and cash equivalents for use by us, or that may affect the remittance of dividends, interest, or other payments by us to non‑resident holders of our ordinary shares or ADSs, other than withholding tax requirements. There is no limitation imposed by English law or in our Articles of Association on the right of non‑residents to hold or vote shares.
E. Taxation
The following is a description of thecertain material U.S. federal income tax consequences to the U.S. Holders described below of owning and disposing of our ordinary shares or ADSs. It is not a comprehensive description of all tax considerations that may be relevant to a particular person's decision to acquire securities. This discussion applies only to a U.S. Holder that holds our ordinary shares or ADSs as a capital asset for tax purposes (generally, property held for investment). In addition, it does not describe all of the tax consequences that may be relevant in light of a U.S. Holder's particular circumstances, including state and local tax consequences, estate tax consequences, alternative minimum tax consequences, the potential application of the Medicare contribution tax, and tax consequences applicable to U.S. Holders subject to special rules, such as:
banks, insurance companies, and certain other financial institutions;
U.S. expatriates and certain former citizens or long-term residents of the United States;
dealers or traders in securities who use a mark-to-market method of tax accounting;
persons holding our ordinary shares or ADSs as part of a hedging transaction, "straddle," wash sale, conversion transaction or integrated transaction or persons entering into a constructive sale with respect to ordinary shares or ADSs;
persons whose "functional currency" for U.S. federal income tax purposes is not the U.S. dollar;
brokers, dealers or traders in securities, commodities or currencies;
tax-exempt entities or government organizations;
S corporations, partnerships, or other entities or arrangements classified as partnerships for U.S. federal income tax purposes;
regulated investment companies or real estate investment trusts;
persons who acquired our ordinary shares or ADSs pursuant to the exercise of any employee stock option or otherwise as compensation;

persons subject to special tax accounting rules as a result of any item of gross income with respect to ordinary shares or ADSs being taken into account in an applicable financial statement;
persons that own or are deemed to own ten percent or more of our ordinary shares by vote or value; and
persons holding our ordinary shares or ADSs in connection with a trade or business, permanent establishment, or fixed base outside the United States.
If an entity that is classified as a partnership for U.S. federal income tax purposes holds our ordinary shares or ADSs, the U.S. federal income tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. Partnerships holding our ordinary shares or ADSs and partners in such partnerships are encouraged to consult their tax advisers as to the particular U.S. federal income tax consequences of holding and disposing of our ordinary shares or ADSs.
The discussion is based on the Internal Revenue Code of 1986, as amended or the Code,(the "Code"), administrative pronouncements, judicial decisions, final, temporary and proposed Treasury Regulations, and the income tax treaty between the United Kingdom and the United States (the "Treaty") all as of the date hereof, changes to any of which may affect the tax consequences described herein — possibly with retroactive effect.
A "U.S. Holder" is a holder who, for U.S. federal income tax purposes, is a beneficial owner of our ordinary shares or ADSs who is eligible for the benefits of the Treaty and is:

(1)a citizen or individual resident of the United States;
(2)a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States, any state therein or the District of Columbia; or
(3)an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source.
U.S. Holders are encouraged to consult their tax advisers concerning the U.S. federal, state, local and foreign tax consequences of owning and disposing of our ordinary shares or ADSs in their particular circumstances.
The discussion below assumes that the representations contained in the deposit agreement with respect to our ADSs are true and that the obligations in the deposit agreement and any related agreement will be complied with in accordance with their terms. Generally, a holder of an ADS should be treated for U.S. federal income tax purposes as holding the ordinary shares represented by the ADS. Accordingly, no gain or loss will be recognized upon an exchange of ADSs for ordinary shares. The U.S. Treasury has expressed concerns that intermediaries in the chain of ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the beneficial ownership of the underlying security. Accordingly the creditability of foreign taxes, if any, as described below, could be affected by actions taken by intermediaries in the chain of ownership between the holders of our ADSs and our Companycompany if as a result of such actions the holders of our ADSs are not properly treated as beneficial owners of the underlying ordinary shares.
Passive Foreign Investment Company ("PFIC") Rules
Because we dodid not expect to earn revenue from our business operations during the current taxable year ended December 31, 2019, and because our sole source of income currently is interest on bank accounts held by us, we believe we will likely be classified as a PFIC for the current taxable year.year ended December 31, 2019. A non-U.S. corporation will be classified as a PFIC for any taxable year in which, after applying certain look-through rules, either:
at least 75% of its gross income is passive income (such as interest income); or
at least 50% of its gross assets (determined on the basis of a quarterly average) is attributable to assets that produce passive income or are held for the production of passive income.
We will be treated as owning our proportionate share of the assets and earning our proportionate share of the income of any other corporation, the equity of which we own, directly or indirectly, 25% or more (by value).
A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year. As a result, our PFIC status may change. While it is possible we may not meet the PFIC test described above once we start generating substantial revenue from our business operations, the analysis is factual and it is possible we may continue to be a PFIC for future years. In particular, the total value of our assets for purposes of the asset test generally will be calculated using the market price of theour ordinary shares or ADSs, which may fluctuate considerably. Fluctuations in the market price of theour ordinary shares or ADSs may result in our being a PFIC for any taxable year.
If we are classified as a PFIC in any year with respect to which a U.S. Holder owns theour ordinary shares or ADSs, we will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding years during which the U.S. Holder owns theour ordinary shares or ADSs, regardless of whether we continue to meet the tests

described above unless (1) we cease to be a PFIC and the U.S. Holder has made a "deemed sale" election under the PFIC rules, or (2) the U.S. Holder makes a QEF Election (defined below) with respect to taxable years in which we are a PFIC. If such election is made, youthe U.S. Holder will be deemed to have sold theour ordinary shares or ADSs you holdit holds at their fair market value and any gain from such deemed sale would be subject to the rules described below. After the deemed sale election, so long as we do not become a PFIC in a subsequent taxable year, yourthe ordinary shares or ADSs with respect to which such election was made will not be treated as shares in a PFIC and youthe U.S. Holder will not be subject to the rules described below with respect to any "excess distribution" you receiveit receives from us or any gain from an actual sale or other disposition of theour ordinary shares or ADSs. U.S. Holders should consult their tax advisors as to the possibility and consequences of making a deemed sale election if we cease to be a PFIC and such election becomes available.
For each taxable year we are treated as a PFIC with respect to you, youa U.S. Holder, such holder will be subject to special tax rules with respect to any "excess distribution" you receiveit receives and any gain you recognizeit recognizes from a sale or other disposition (including a pledge) of our ordinary shares or ADSs, unless you makesuch holder makes a QEF Election or a mark-to-market election as discussed below. Distributions you receivethat a U.S. Holder receives in a taxable year that are greater than 125% of the average annual distributions you received during the shorter of the three preceding taxable years or yoursuch holder's holding period for theout ordinary shares or ADSs will be treated as an excess distribution. Under these special tax rules:

the excess distribution or gain will be allocated ratably over yoursuch holder's holding period for theour ordinary shares or ADSs;
the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we became a PFIC, will be treated as ordinary income; and
the amount allocated to each other year will be subject to the highest tax rate in effect for that year and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.
The tax liability for amounts allocated to years prior to the year of disposition or "excess distribution" cannot be offset by any net operating losses for such years, and gains (but not losses) realized on the sale of theour ordinary shares or ADSs cannot be treated as capital, even if you hold the U.S. Holder holds our ordinary shares or ADSs as capital assets.
If we are a PFIC, a U.S. Holder will generally be subject to similar rules with respect to distributions we receive from, and our dispositions of the stock of, any of our direct or indirect subsidiaries that also are PFICs, as if such distributions were indirectly received by, and/or dispositions were indirectly carried out by, such U.S. Holder. U.S. Holders should consult their tax advisors regarding the application of the PFIC rules to our subsidiaries.
U.S. Holders can avoid the interest charge on excess distributions or gain relating to theour ordinary shares or ADSs by making a mark-to-market election with respect to theour ordinary shares or ADSs, provided that theour ordinary shares or ADSs are "marketable." OrdinaryOur ordinary shares or ADSs will be marketable if they are "regularly traded" on certain U.S. stock exchanges or on a foreign stock exchange that meets certain conditions. For these purposes, theour ordinary shares or ADSs will be considered regularly traded during any calendar year during which they are traded, other than in de minimis quantities, on at least 15 days during each calendar quarterquarter. Any trades that have as their principal purpose meeting this requirement will be disregarded. Our ADSs will beare listed on the Nasdaq Global Market and our ordinary shares are traded on AIM, a market of the London Stock Exchange, each of, which is a qualified exchange for these purposes. Consequently, if our ADSs remain listed on the Nasdaq Global Market or our ordinary shares remain listed on AIM and, in each case, are regularly traded, and you are a holder of ADSs, we expect the mark-to-market election would be available to youU.S. Holders of such ordinary shares or ADSs if we are a PFIC (which we believe likely for the current year). Each U.S. Holder should consult its tax advisor as to the whether a mark-to-market election is available or advisable with respect to theour ordinary shares or ADSs.
A U.S. Holder that makes a mark-to-market election must include in ordinary income for each year an amount equal to the excess, if any, of the fair market value of theour ordinary shares or ADSs at the close of the taxable year over the U.S. Holder's adjusted tax basis in theour ordinary shares or ADSs. An electing holder may also claim an ordinary loss deduction for the excess, if any, of the U.S. Holder's adjusted basis in theour ordinary shares or ADSs over the fair market value of theour ordinary shares or ADSs at the close of the taxable year, but this deduction is allowable only to the extent of any net mark-to-market gains for prior years. Gains from an actual sale or other disposition of theour ordinary shares or ADSs will be treated as ordinary income, and any losses incurred on a sale or other disposition of theour ordinary shares or ADSs will be treated as an ordinary loss to the extent of any net mark-to-market gains for prior years. Once made, the election cannot be revoked without the consent of the IRSU.S. Internal Revenue Service (the "IRS"), unless theour ordinary shares or ADSs cease to be marketable.

However, a mark-to-market election generally cannot be made for equity interests in any lower-tier PFICs that we own, unless shares of such lower-tier PFIC are themselves "marketable." We believe that
Rhinopharma Limited will likely be treated as a lower-tier PFIC. As a result, even if a U.S. Holder validly makes a mark-to-market election with respect to our ordinary shares or ADSs, the U.S. Holder may continue to be subject to the PFIC rules (described above) with respect to its indirect interest in any of our investments that are treated as an equity interest in a PFIC for U.S. federal income tax purposes. U.S. Holders should consult their tax advisors as to the availability and desirability of a mark-to-market election, as well as the impact of such election on interests in any lower-tier PFICs.
Alternatively, a U.S. Holder can make an election, if we provide the necessary information, to treat us and each lower-tier PFIC as a qualified electing fund (a "QEF Election") in the first taxable year we (and our relevant subsidiaries) are treated as a PFIC with respect to the holder. If such election remains in place while we and any lower-tier PFIC subsidiaries are PFICs, we and our subsidiaries will not be treated as PFICs with respect to such U.S. Holder when we cease to be a PFIC. A U.S. Holder must make the QEF Election for each PFIC by attaching a separate properly completed IRS Form 8621 for each PFIC to the holder's timely filed U.S. federal income tax return. We will provide the information necessary for a U.S. Holder to make a QEF Election with respect to us and will cause each lower-tier PFIC which we control to provide such information with respect to such lower-tier PFIC.

If a U.S. Holder makes a QEF Election with respect to a PFIC, the holder will be currently taxable on its pro rata share of the PFIC's ordinary earnings and net capital gain (at ordinary income and capital gain rates, respectively) for each taxable year that the entity is classified as a PFIC. If a U.S. Holder makes a QEF Election with respect to us, any distributions paid by us out of our earnings and profits that were previously included in the holder's income under the QEF Election would not be taxable to the holder. A U.S. Holder will increase its tax basis in itsour ordinary shares or ADSs by an amount equal to any income included under the QEF Election and will decrease its tax basis by any amount distributed on theour ordinary shares or ADSs that is not included in the holder's income. In addition, a U.S. Holder will recognize capital gain or loss on the disposition of our ordinary shares or ADSs in an amount equal to the difference between the amount realized and the holder's adjusted tax basis in theour ordinary shares or ADSs. U.S. Holders should note that if they make QEF Elections with respect to us and lower-tier PFICs, they may be required to pay U.S. federal income tax with respect to theirour ordinary shares or ADSs for any taxable year significantly in excess of any cash distributions received on theour ordinary shares or ADSs for such taxable year. U.S. Holders should consult their tax advisors regarding making QEF Elections in their particular circumstances.
Unless otherwise provided by the U.S. Treasury, each U.S. shareholderHolder of a PFIC is required to file an annual report containing such information as the U.S. Treasury may require. A U.S. Holder's failure to file the annual report will cause the statute of limitations for such U.S. Holder's U.S. federal income tax return to remain open with regard to the items required to be included in such report until three years after the U.S. Holder files the annual report, and, unless such failure is due to reasonable cause and not willful neglect, the statute of limitations for the U.S. Holder's entire U.S. federal income tax return will remain open during such period. U.S. Holders should consult their tax advisors regarding the requirements of filing such information returns under these rules.
Taxation of Distributions
Subject to the discussion above under "Passive Foreign Investment Company ("PFIC") Rules," distributions paid on our ordinary shares or ADSs, other than certain pro rata distributions of ordinary shares or ADSs, will generally be treated as dividends to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Because we do not calculate our earnings and profits under U.S. federal income tax principles, we expect that distributions generally will be reported to U.S. Holders as dividends. Subject to applicable limitations, dividends paid to certain non-corporate U.S. Holders may be taxable at preferential rates applicable to "qualified dividend income." However, the qualified dividend income treatment may not apply if we are treated as a PFIC with respect to the U.S. Holder. The amount of a dividend will include any amounts withheld by us in respect of United Kingdom income taxes. The amount of the dividend will be treated as foreign-source dividend income to U.S. Holders and will not be eligible for the dividends-received deduction generally available to U.S. corporations under the Code. Dividends will generally be included in a U.S. Holder's income on the date of the U.S. Holder's receipt of the dividend. The amount of any dividend income paid in foreign currency will be the U.S. dollar amount calculated by reference to the exchange rate in effect on the date of actual or constructive receipt, regardless of whether the payment is in fact converted into U.S. dollars. If the dividend is converted into U.S. dollars on the date of receipt, a U.S. Holder should not be required to recognize foreign currency gain or loss in respect of the dividend income. A U.S. Holder may have foreign currency gain or loss if the dividend is converted into U.S. dollars after the date of receipt. Such gain or loss would generally be treated as U.S.-source ordinary income or loss. The amount of any distribution of

property other than cash (and other than certain pro rata distributions of ordinary shares or ADSs or rights to acquire ordinary shares or ADSs) will be the fair market value of such property on the date of distribution.
For foreign tax credit purposes, our dividends will generally be treated as passive category income. Subject to applicable limitations, some of which vary depending upon the U.S. Holder's particular circumstances, any United Kingdom income taxes withheld from dividends on our ordinary shares or ADSs at a rate not exceeding the rate provided by the Treaty will be creditable against the U.S. Holder's U.S. federal income tax liability. The rules governing foreign tax credits are complex and U.S. Holders should consult their tax advisers regarding the creditability of foreign taxes in their particular circumstances. In lieu of claiming a foreign tax credit, U.S. Holders may, at their election, deduct foreign taxes, including any United Kingdom income tax, in computing their taxable income, subject to generally applicable limitations under U.S. law. An election to deduct foreign taxes instead of claiming foreign tax credits applies to all foreign taxes paid or accrued in the taxable year.

Sale or Other Taxable Disposition of Our Ordinary Shares and ADSs
Subject to the discussion above under "Passive Foreign Investment ("PFIC") Company Rules," gain or loss realized on the sale or other taxable disposition of our ordinary shares or ADSs will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder held theour ordinary shares or ADSs for more than one year. The amount of the gain or loss will equal the difference between the U.S. Holder's tax basis in theour ordinary shares or ADSs disposed of and the amount realized on the disposition, in each case as determined in U.S. dollars. This gain or loss will generally be U.S.-source gain or loss for foreign tax credit purposes. The deductibility of capital losses is subject to limitations.
If the consideration received by a U.S. Holder is not paid in U.S. dollars, the amount realized will be the U.S. dollar value of the payment received determined by reference to the spot rate of exchange on the date of the sale or other disposition. However, if theour ordinary shares or ADSs are treated as traded on an "established securities market" and youthe U.S. Holder is are either a cash basis taxpayer or an accrual basis taxpayer that has made a special election (which must be applied consistently from year to year and cannot be changed without the consent of the IRS), yousuch holder will determine the U.S. dollar value of the amount realized in a non-U.S. dollar currency by translating the amount received at the spot rate of exchange on the settlement date of the sale. If you area U.S. Holder is an accrual basis taxpayer that is not eligible to or does not elect to determine the amount realized using the spot rate on the settlement date, yousuch holder will recognize foreign currency gain or loss to the extent of any difference between the U.S. dollar amount realized on the date of sale or disposition and the U.S. dollar value of the currency received at the spot rate on the settlement date.
WE STRONGLY URGE YOUINVESTORS IN OUR ORDINARY SHARES OR ADSs TO CONSULT YOURTHEIR TAX ADVISORADVISORS REGARDING THE IMPACT OF OUR PFIC STATUS ON YOURTHEIR INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs AS WELL AS THE APPLICATION OF THE PFIC RULES TO YOURSUCH INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs.
Information Reporting and Backup Withholding
Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries generally are subject to information reporting, and may be subject to backup withholding, unless (i) the U.S. Holder is a corporation or other exempt recipient or (ii) in the case of backup withholding, the U.S. Holder provides a correct taxpayer identification number and certifies that it is not subject to backup withholding.
Backup withholding is not an additional tax. The amount of any backup withholding from a payment to a U.S. Holder will be allowed as a credit against the holder's U.S. federal income tax liability and may entitle it to a refund, provided that the required information is timely furnished to the IRS.
Information with Respect to Foreign Financial Assets
Certain U.S. Holders who are individuals (and, under proposed regulations, certain entities) may be required to report information relating to theour ordinary shares or ADSs, subject to certain exceptions (including an exception for ordinary shares or ADSs held in accounts maintained by certain U.S. financial institutions). U.S. Holders should consult their tax advisers regarding their reporting obligations with respect to their ownership and disposition of theour ordinary shares or ADSs.
F. Dividends and Paying Agents.
Not applicable.

G. Statement by Experts.
Not applicable.
H. Documents on Display.
We maintain a corporate website at www.veronapharma.com. We make available free of charge on our website our Reports on Form 6-K, and we intend make available our Annual Reports on Form 20-F, as soon as reasonably practicable afterand any other reports that we electronically file such material with, or furnish it to,with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included our website address in this Annual Report solely as an inactive textual reference.

You may also review a copy of this Annual Report, including exhibits and any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SEC’s Public Reference Room in Room 1580, 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website (www.sec.gov)at www.sec.gov that contains reports, proxy and information statements and other information regarding registrantsissuers that file electronically, such as us, with the SEC.
References made in this Annual Report to any contract or certain other document of Verona Pharma plc are not necessarily complete and you should refer to the exhibits attached or incorporated by reference into this Annual Report for copies of the actual contract or document.
I. Subsidiary Information.
Not applicable.



ITEM 11: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to a variety of financial risks. Our overall risk management program seeks to minimize potential adverse effects of these financial risks on our financial performance.
Credit Risk
We consider all of our material counterparties to be creditworthy. We consider the credit risk for each of our counterparties to be low and do not have a significant concentration of credit risk at any of our counterparties.
Liquidity Risk
We manage our liquidity risk by maintaining adequate cash reserves at banking facilities, and by continuously monitoring our cash forecasts, our actual cash flows and by matching the maturity profiles of financial assets and liabilities.
Currency Risk
Foreign currency risk reflects the risk that the value of a financial commitment or recognized asset or liability will fluctuate due to changes in foreign currency rates. Our financial position, as expressed in pounds sterling, are exposed to movements in foreign exchange rates against the U.S. dollar and the Euro. Our main trading currencies are pounds sterling, the U.S. dollar and the Euro. We are exposed to foreign currency risk as a result of operating transactions and the translation forof foreign bank accounts. We monitor our exposure to foreign exchange risk. We have not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
Interest rate Risk
Interest rate risk reflects the risk that the value of a financial instrument will fluctuate as a result of a change in market interest rates on classes of financial assets and financial liabilities. We do not hold any derivative instruments to manage interest rate risk.
See note 3.1 of the financial statements for quantitative disclosures about market risk.


ITEM 12: DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A. Debt Securities.
Not applicable.
B. Warrants and Rights.
Not applicable.
C. Other Securities.
Not applicable.

D. American Depositary Shares.

Fees and Charges
Holders of our ADSs are required to pay the following fees under the terms of the deposit agreement:

 
Service Fee
Issuance of ADSs (e.g., an issuance of ADS upon a deposit of ordinary shares or upon a change in the ADS(s)‑to‑ordinary shares ratio), excluding ADS issuances as a result of distributions of ordinary shares Up to $0.05 per ADS issued
Cancellation of ADSs (e.g., a cancellation of ADSs for delivery of deposited property or upon a change in the ADS(s)‑to‑ordinary shares ratio) Up to $0.05 per ADS cancelled
Distribution of cash dividends or other cash distributions (e.g., upon a sale of rights and other entitlements) Up to $0.05 per ADS held
Distribution of ADSs pursuant to (i) stock dividends or other free stock distributions, or (ii) exercise of rights to purchase additional ADSs Up to $0.05 per ADS held
Distribution of securities other than ADSs or rights to purchase additional ADSs (e.g., upon a spin‑off) Up to $0.05 per ADS held
ADS Services Up to $0.05 per ADS held on the applicable record date(s) established by the depositary
Holders of our ADSs are also responsible to pay certain charges such as:
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) the issuance of ADSs, and (ii) the cancellation of ADSs are charged to the person to whom the ADSs are issued (in the case of ADS issuances) and to the person whose ADSs are cancelled (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs being issued or the DTC participant(s) holding the ADSs being cancelled, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to the account of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participants as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges holders of our ADSs may be required to pay may vary over time and may be changed by us and by the depositary. Holders of our ADSs will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADRADS program, by making available a portion of the ADS fees charged in respect of the ADRADS program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.


PART II
ITEM 13: DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
None.

ITEM 14: MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
A.    Not applicableNone
B.    Not applicableNone
C.    Not applicableNone
D.    Not applicableNone

E.    Use of Proceeds.
In May 2017, we completed the initial public offering of our American Depositary SharesADSs in the United States and a private placement of our ordinary shares in Europe, or the global offering. In the global offering we issued and sold 6,501,738 ADSs, including 733,738 ADSs issued and sold upon the partial exercises ofby the underwriters pursuant to their overallotment option to purchase additional ADSs, at a public offering price of $13.50 per ADS, and 1,225,001 ordinary shares at an offering price of £1.32 per share.
The offer and sale of all of the ADSs and ordinary shares in the global offering was registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124), which was declared effective by the SEC on April 26, 2017, and a registration statement on Form F-1 to register additional securities (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, or, together, the Registration Statement. Under the Registration Statement, we registered 5,768,000 ADSs, 1,225,001 ordinary shares, and 865,200 ADSs issuable upon exercise of the underwriters’ option to purchase additional ADSs at a public offering price of $13.50 per ADS and £1.32 per ordinary share, for a registered aggregate offering price of approximately $89.9 million including the 733,738 ADSs issued and sold upon the partial exercises of the underwriters’ option to purchase additional ADSs. Following the sale of the ADSs and ordinary shares in connection with the closing of the global offering, the offering terminated. The offering commenced on April 18, 2017 and did not terminate until the sale of all of the shares offered. Jefferies LLC and Stifel, Nicholaus & Company, Incorporated acted as joint book-running managers of the offering, and Wedbush Securities Inc. and SunTrust Robinson Humphrey, Inc. acted as co-managers of the offering.
In addition, a further 254,099 shares were issued to private investors for proceeds of $0.4m.
We received aggregate gross proceeds from the global offering of approximately $90.3$89.9 million, orand aggregate net proceeds of approximately $80.8 million after deducting underwriting discounts and commissions of approximately $6.3 million and offering expenses of approximately $3.2 million. No payments for such expenses were made directly or indirectly to (i) any of our officers, members of our board of directors, or their associates, (ii) any persons owning 10% or more of any class of our equity securities or (iii) any of our affiliates.
The offer and sale of the ADSs and ordinary shares in the global offering were registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124) to register ordinary shares, which was declared effective by the SEC on April 26, 2017, a registration statement on Form F-1 to register additional ordinary shares (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, and a registration statement on Form F-6 (File No. 333-217353) to register the ADSs, which was declared effective by the SEC on April 26, 2017, or, collectively, the Registration Statements. Under the Registration Statements, we registered an aggregate offering price of approximately $91.7 million of ordinary shares and 100,000,000 ADSs for a registered aggregate offering price of $5.0 million.
There has been no material change in our planned use of the net proceeds from the global offering as described in our final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act with the SEC on April 28, 2017.

ITEM 15: CONTROLS AND PROCEDURES
Limitations on Effectiveness of Controls and Procedures
In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.
Disclosure Controls and Procedures.
Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended)Act), as of the end of the period covered by this Annual Report on Form 20-F.Report. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date,December 31, 2019, our disclosure controls and procedures were effective ateffective.
Management’s Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, as such term is defined in Rule 13a-15(f) under the reasonable assurance level asExchange Act.
Our management conducted an assessment of December 31, 2017.

This annual report does not include a reportthe effectiveness of management’s assessment regardingour internal control over financial reporting or an attestation reportbased on the criteria set forth in “Internal Control – Integrated Framework (2013)” issued by the Committee of Sponsoring Organizations of the company’s registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.Treadway Commission.

Material Weaknesses in Internal Control Over Financial Reporting.
This Annual ReportBased on Form 20-F does not include a reportthis assessment, our management concluded that, as of management’s assessment regardingDecember 31, 2019, our internal control over financial reporting orwas effective.
Attestation Report of the Registered Public Accounting Firm
This Annual Report does not include an attestation report of our registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.
In connection with the preparation for the initial public offering of our ADSs, we reassessed our critical accounting policies to ensure compliance with IFRS. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma Ltd. in September 2006. We concluded that a lack of adequate controls surrounding our historic accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standardsan exemption established by the U.S. Public Accounting Oversight Board
We have remediated this material weakness by the hiring of our chief financial officer in September 2016 and enhancing our financial reporting team’s technical accounting knowledge associated with the accounting rulesJOBS Act for business combinations. However, we cannot be certain that these efforts will prevent future material weaknesses or significant deficiencies from occurring.Review updated remediation language.“emerging growth companies.”
Changes in Internal Control Overover Financial Reporting.Reporting
Other than as discussed above, there has beenThere were no changechanges in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the period covered by this annual reportAnnual Report that hashave materially affected, or isare reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A: AUDIT COMMITTEE FINANCIAL EXPERT
Our board of directors has determined that Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair each qualify as an audit committee financial expert as defined by the rules of the Securities and Exchange CommissionSEC and has the requisite financial sophistication under the applicable rules and regulations of Nasdaq. Mr. Sinha and Drs. Ebsworth and Sinclair are each independent as such term is defined in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, and under the listing standards of Nasdaq.


ITEM 16B: CODE OF ETHICS
Code of Business Conduct and Ethics
We have adopted a Code of Business Conduct and Ethics, or the Code of Conduct, that is applicable to all of our employees, executive officers, including our principal executive, principal financial and principal accounting officers, members of our board of directors, and consultants. The Code of Conduct is available on our website at www.veronapharma.com. We will provide a copy of our Code of Conduct to any person without charge upon written request sent to:
Verona Pharma plc
3 More London Riverside
London SE1 2RE
United Kingdom
Attn: Secretary
We intend to satisfy the disclosure requirement under Item 16B(e)16B(d) and (e) of Form 20-F regarding amendment to, or waiver from, a provision of our Code of Conduct, as well as Nasdaq’s requirement to disclose waivers with respect to directors and executive officers, by posting such information onin the "Investors" section of our website at the address and location specified above.www.veronapharma.com. Our executive officers are responsible for administering the Code of Conduct. Amendment, alteration or termination of the Code of Conduct requires the approval of our board of directors.


ITEM 16C: PRINCIPAL ACCOUNTANT FEES AND SERVICES

The following table summarizes the fees of PricewaterhouseCoopers LLP, our independent registered public accounting firm, billed to us for each of the last two fiscal years for audit and other services:
Fee Category2016
 2017
 £'000s
 £'000s
Audit Fees80
 117
Audit-Related Fees525
 333
Other Services
 150
Total Fees605
 600
Fee Category2019
 2018
 £'000s
 £'000s
Audit Fees148
 114
Audit-Related Fees52
 68
Other Services67
 86
Total Fees267
 268
Audit-Related Fees
For the yearyears ended December 31, 2017,2019 and 2018, audit related services include fees for quarterly interim reviews, advice on compliance with Sarbanes-Oxley legislation and assurance on information included in the Company's U.S. registration statement for the April 2017 initial public offering in the United States (the"Global Offering"). For the year ended December 31, 2017, an amount of £256 thousand in relation to these services was offset against share premium on completion of the Global Offering.
For the year ended December 31, 2016, audit related services include assurance reporting on historical financial information included in the Company's U.S. registration statement for the Global Offering. As at December 31, 2016 an amount of £466 thousand in relation to these services was booked in deferred IPO costs that was offset against share premium on completion of the Global Offering.reviews.
Tax Fees
We did not incur any tax fees for services from PricewaterhouseCoopers LLP in 20162019 or 2017.2018.
All Other Fees
We did not incur anyFor the year ended December 31, 2019 other fees in 2017 or 2016.related to advice relating to fund raising.
For the year ended December 31, 2018, other fees related to a review of the Company’s F-3 shelf registration statement.
Audit Committee Pre-Approval Policy and Procedures
The Audit Committee has adopted a policy, or the Pre-Approval Policy, which sets forth the procedures and conditions pursuant to which audit and non-audit services proposed to be performed by the independent auditor may be pre-approved. The Pre-Approval Policy generally provides that we will not engage PricewaterhouseCoopers LLP to render any audit, audit-related, tax or permissible non-audit service unless the service is either (i) explicitly approved by the Audit Committee, or specific pre-approval, or (ii) entered into pursuant to the pre-approval policies and procedures described in the Pre-Approval Policy, or general pre-approval. Unless a type of service to be provided by PricewaterhouseCoopers LLP has received general pre-approval under the Pre-Approval Policy, it requires specific pre-approval by the Audit Committee or by a designated member of the Audit Committee to whom the committee has delegated the authority to grant pre-approvals. Any proposed services exceeding pre-approved cost levels or budgeted amounts will also require specific pre-approval. For both types of pre-approval, the Audit Committee will consider whether such services are consistent with the SEC’s rules on auditor independence. The Audit Committee will also consider whether the independent auditor is best positioned to provide the most effective and efficient service, for reasons such as its familiarity with our business, people, culture, accounting systems, risk profile and other factors, and whether the service might enhance our ability to manage or control risk or improve audit quality. All such factors will be considered as a whole, and no one factor should necessarily be determinative. The Audit Committee may also review and generally pre-approve the services (and related fee levels or budgeted amounts) that may be provided by PricewaterhouseCoopers LLP without first obtaining specific pre-approval from the Audit Committee. The Audit Committee may revise the list of general pre-approved services from time to time, based on subsequent determinations.


ITEM 16D: EXEMPTIONS FORM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None
ITEM 16E: PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

None

ITEMS 16F: CHANGE IN REGISTRANT'S CERTIFYING ACCOUNTANT
There has been no change in our independent accountant during our two most recent fiscal years.


ITEM 16G: CORPORATE GOVERNANCE
As a “foreign private issuer,” as defined by the SEC, we are permitted to follow home country corporate governance practices, instead of certain corporate governance practices required by Nasdaq for domestic issuers.issuers, with certain exceptions. While we voluntarily follow most Nasdaq corporate governance rules, we follow U.K. corporate governance practices in lieu of Nasdaq corporate governance rules as follows:
We do not follow Nasdaq Rule 5620(c) regarding quorum requirements applicable to meetings of shareholders. Such quorum requirements are not required under English law. In accordance with generally accepted business practice, our articles of association provide alternative quorum requirements that are generally applicable to meetings of shareholders.
We do not follow Nasdaq Rule 5605(b)(2), which requires that independent directors regularly meet in executive session, where only independent directors are present. Our independent directors may choose to meet in executive session at their discretion.

ITEM 16H: MINE SAFETY DISCLOSURE

None

PART III
ITEM 17: FINANCIAL STATEMENTS

We have elected to provide financial statements pursuant to Item 18.

ITEM 18: FINANCIAL STATEMENTS

The financial statements required under this Item 18 are filed as part of this Annual Report beginning on page F-1.F-1.The audit report of PricewaterhouseCoopers LLP, independent registered public accounting firm, is included herein preceding the financial statements.


ITEM 19: EXHIBITS

The Exhibits listed in the Exhibit Index at the end of this Annual Report are filed as Exhibits to this Annual Report.


   Incorporated by Reference to Filings Indicated
       
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
       
       
F-1 333-2171243.1
4/3/2017 
       
20-F001-380672.1
2/27/2018 
       
20-F001-380672.2
2/27/2018 
       
F-1 333-2171244.3
4/3/2017 
       
F-1 333-2171244.4
4/3/2017 
       
    *
F-1 333-21712410.1
4/3/2017 
       
F-1 333-21712410.2
4/3/2017 
       

20-F001-380674.3
3/19/2019 
       
20-F001-380674.3.1
3/19/2019 
       
20-F001-380674.3.2
3/19/2019 
       
    *
       
    *
       

    
*

       
    
*

       
F-1 333-21712410.4
4/3/2017 
       
F-1 333-21712410.5
4/3/2017 
       
20-F001-380674.6
2/27/2018 
       

    *
       
20-F001-380674.3.2
3/19/2019 
       
F-1 333-21712410.8
4/3/2017 
       
F-1 333-21712410.9
4/3/2017 
       
F-1/A 333-21712410.11.1
4/18/2017 
       
F-1/A 333-21712410.11.2
4/18/2017 
       
F-1 333-21712410.12
4/3/2017 
       
F-1 333-21712410.13
4/3/2017 
       
F-1 333-21712410.14
4/3/2017 
       
F-1 333-21712421.1
4/3/2017 
       
    *
       
    *
       
    **
       
    **
       
    *

   Incorporated by Reference to Filings Indicated
    
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
No.
DateFurnished

1.1Articles of Association, as amended and as currently in effectF-1 333-2171243.1
4/3/2017 
       
Deposit Agreement     *
       
2.2Form of American Depositary Receipt (included in Exhibit 2.1)     *
       
2.3Form of Warrant issued to each of the investors named in Schedule A theretoF-1 333-2171244.3
4/3/2017 
       
2.4Warrant Instrument issued to NPlus1 Singer LLPF-1 333-2171244.4
4/3/2017 
       
4.1Registration Rights Agreement, dated July 29, 2016, by and among Verona Pharma plc and the investors set forth thereinF-1 333-21712410.1
4/3/2017 
       
4.2†Intellectual Property Assignment and Licence Agreement between Vernalis Development Limited and Rhinopharma Limited, as predecessor to Verona Pharma plc, dated February 7, 2005F-1 333-21712410.2
4/3/2017 
       
4.3Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 and related Renewal Agreements dated September 30, 2015 and October 1, 2016F-1 333-21712410.3
4/3/2017 
       
4.3.1Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.1
4/3/2017 
       
4.3.2Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.2
4/3/2017 
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 (exhibit 4.3)     *
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016 (exhibits 4.3.1 and 4.3.2)     *
       
4.4#EMI Option SchemeF-1 333-21712410.4
4/3/2017 
       

4.5#Unapproved Share Option Scheme, as amendedF-1 333-21712410.5
4/3/2017 
       
2017 Incentive Award Plan and forms of award agreements thereunder    *
       
4.7#Employment Agreement, dated April 30, 2012, as amended, between Verona Pharma plc and Jan-Anders KarlssonF-1 333-21712410.6
4/3/2017 
       
4.8#Offer Letter, dated December 15, 2014, as amended, between Verona Pharma plc and Kenneth NewmanF-1 333-21712410.7
4/3/2017 
       
4.9#Employment Agreement, dated September 24, 2016, between Verona Pharma plc and Piers John MorganF-1 333-21712410.8
4/3/2017 
       
4.10#Employment Agreement, dated October 1, 2016, between Verona Pharma plc and Claire PollF-1 333-21712410.9
4/3/2017 
       
4.11#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.10
4/3/2017 
       
4.12#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.16
4/3/2017 
       
Employment Agreement, dated May 1, 2017, between Verona Pharma plc and Desiree Luthman[2]    *
       
4.14Form of Indemnification Agreement for board membersF-1/A 333-21712410.11.1
4/18/2017 
       
4.15Form of Indemnification Agreement for executive officersF-1/A 333-21712410.11.2
4/18/2017 
       
4.16Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, OrbiMed Private Investments VI, LP and NPlus1 Singer Advisory LLPF-1 333-21712410.12
4/3/2017 
       
4.17Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Abingworth Bioventures VI LP and NPlus1 Singer Advisory LLPF-1 333-21712410.13
4/3/2017 
       
4.18Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. and NPlus1 Singer Advisory LLPF-1 333-21712410.14
4/3/2017 
       
8.1List of SubsidiariesF-1 333-21712410.14
4/3/2017 
       

Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer    *
       
Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer    *
       
Section 1350 Certification of Chief Executive Officer**
Section 1350 Certification of Chief Financial Officer**
Consent of PricewaterhouseCoopers LLP    *
       
101.INS    *
       
101.SCH    *
       
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
101.DEF    *
 
*Filed herewith.
**Furnished herewith.
#Indicates management contract or compensatory plan.
Confidential treatment granted as to portions of the exhibit. Confidential materials omitted and filed separately with the Securities and Exchange Commission.SEC.






SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

VERONA PHARMA PLC
By: /s/ David Zaccardelli
Name: David Zaccardelli, Pharm. D
Title: Chief Executive Officer

Date: February 27, 2020

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
Consolidated financial statements
as of and for the years ended December 31, 2016 and 2017


pwclogo.jpg
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Verona Pharma Plc

Opinion on the Financial Statements

We have audited the accompanying consolidated statementstatements of financial position of Verona Pharma Plc and its subsidiaries (the “Company”) as of December 31, 20172019 and December 31, 20162018, and the related consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 20172019, including the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172019 and December 31, 2016,2018, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172019 in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Change in Accounting Principle

As discussed in Note 2.17 to the consolidated financial statements, the Company changed the manner in
which it accounts for its contingent liability in 2019.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.




/s/ PricewaterhouseCoopers LLP
Reading, United Kingdom
February 27, 20182020


We have served as the Company's auditor since 2015.

PricewaterhouseCoopers LLP, 3 Forbury Place, 23 Forbury Road, Reading, Berkshire, RG1 3JH
T: +44 (0) 118 597 111, F: +44 (0) 1189 383 020, www.pwc.co.uk

PricewaterhouseCoopers LLP is a limited liability partnership registered in England with registered number OC303525. The registered office of
PricewaterhouseCoopers LLP is 1 Embankment Place, London WC2N 6RH. PricewaterhouseCoopers LLP is authorised and regulated by the Financial Conduct Authority for designated investment business.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF FINANCIAL POSITION
AS OF DECEMBER 31, 20162019 AND 20172018
 Notes As of
December 31, 2016
 As of
December 31, 2017
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 1,877
 1,969
Property, plant and equipment13
 14
 16
Total non-current assets  2,332
 2,426
      
Current assets:     
Prepayments and other receivables14
 2,959
 1,810
Current tax receivable  1,067
 5,006
Short term investments3
 
 48,819
Cash and cash equivalents  39,785
 31,443
Total current assets  43,811
 87,078
Total assets  46,143
 89,504
      
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital15
 2,568
 5,251
Share premium  58,526
 118,862
Share-based payment reserve  2,103
 5,022
Accumulated loss  (28,728) (49,254)
Total equity  34,469
 79,881
      
Current liabilities:   
  
Derivative financial instrument19
 7,923
 1,273
Trade and other payables17
 2,823
 7,154
Tax payable—U.S. Operations  126
 169
Total current liabilities  10,872
 8,596
      
Non-current liabilities:     
Assumed contingent obligation18
 802
 875
Deferred income  
 152
Total non-current liabilities  802
 1,027
Total equity and liabilities  46,143
 89,504
 Notes As of
December 31, 2019
 Restated As of
December 31, 2018
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 2,757
 2,618
Property, plant and equipment13
 43
 21
Right-of-use assets14
 971
 
Total non-current assets  4,212
 3,080
      
Current assets:     
Prepayments and other receivables15
 2,770
 2,463
Current tax receivable  7,396
 4,499
Short term investments  7,823
 44,919
Cash and cash equivalents  22,934
 19,784
Total current assets  40,923
 71,665
Total assets  45,135
 74,745
    
  
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital16
 5,266
 5,266
Share premium  118,862
 118,862
Share-based payment reserve  10,364
 7,923
Accumulated loss  (100,627) (68,633)
Total equity  33,865
 63,418
      
Current liabilities:   
  
Derivative financial instrument18
 895
 2,492
Lease liability14
 460
 
Trade and other payables19
 8,261
 7,733
Total current liabilities  9,616
 10,225
      
Non-current liabilities:     
Assumed contingent liability20
 1,103
 996
Non-current lease liability14
 491
 
Deferred income  60
 106
Total non-current liabilities  1,654
 1,102
Total equity and liabilities  45,135
 74,745
The accompanying notes form an integral part of these consolidated financial statements.


VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF COMPREHENSIVE INCOME
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Notes Year Ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (7,270) (4,522) (23,717)
General and administrative costs  (1,706) (2,498) (6,039)
Operating loss7 (8,976) (7,020) (29,756)
Finance income9 45
 1,841
 7,018
Finance expense9 (73) (794) (2,465)
Loss before taxation  (9,004) (5,973) (25,203)
Taxation — credit10 1,509
 954
 4,706
Loss for the year  (7,495) (5,019) (20,497)
Other comprehensive income / (loss) :       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  4
 43
 (29)
Total comprehensive loss attributable to owners of the Company  (7,491) (4,976) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (37.1) (15.0) (23.4)

 Notes Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year Ended December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (33,476) (19,294) (23,717)
General and administrative costs  (7,607) (6,297) (6,039)
Operating loss7 (41,083) (25,591) (29,756)
Finance income9 2,351
 2,783
 7,018
Finance expense9 (474) (1,325) (2,465)
Loss before taxation  (39,206) (24,133) (25,203)
Taxation — credit10 7,265
 4,232
 4,706
Loss for the year  (31,941) (19,901) (20,497)
Other comprehensive income / (loss):       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  (33) 38
 (29)
Total comprehensive loss attributable to owners of the Company  (31,974) (19,863) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (30.3) (18.9) (23.4)
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2015, 2016 AND 2017
 Year ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(9,004) (5,973) (25,203)
Finance income(45) (1,841) (7,018)
Finance expense73
 794
 2,465
Share-based payment charge399
 577
 2,919
Decrease / (increase) in prepayments and other receivables59
 (1,809) (161)
Increase in trade and other payables1,274
 1,068
 5,363
Depreciation of property, plant and equipment10
 10
 7
Loss on disposal of property, plant and equipment
 3
 
Loss on disposal of intangible assets135
 
 
Amortization of intangible assets43
 52
 116
Cash used in operating activities(7,056) (7,119) (21,512)
Cash inflow from taxation700
 1,533
 816
Net cash used in operating activities(6,356) (5,586) (20,696)
Cash flow from investing activities:     
Interest received51
 87
 128
Purchase of plant and equipment(1) (13) (9)
Payment for patents and computer software(142) (115) (208)
Transfer to short term investments
 
 (54,465)
Maturity of short term investments
 
 5,085
Net cash used in investing activities(92) (41) (49,469)
Cash flow from financing activities:     
Gross proceeds from issue of shares and warrants
 44,750
 
Gross proceeds from the April 2017 Global Offering  
 70,032
Transaction costs on issue of shares and warrants
 (2,910) 
Transaction costs on April 2017 Global Offering
 (636) (6,786)
Net cash generated from financing activities
 41,204
 63,246
Net (decrease) / increase in cash and cash equivalents(6,448) 35,577
 (6,919)
Cash and cash equivalents at the beginning of the year9,968
 3,524
 39,785
Effect of exchange rates on cash and cash equivalents4
 684
 (1,423)
Cash and cash equivalents at the end of the period3,524
 39,785
 31,443

The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF CHANGES IN EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Share
Capital
 Share
Premium
 Share-based
Expenses
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 20151,010
 26,650
 1,127
 (16,261) 12,526
Loss for the year
 
 
 (7,495) (7,495)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 4
 4
Total comprehensive loss for the period
 
 
 (7,491) (7,491)
Share-based payments
 
 399
 
 399
Balance at December 31, 20151,010
 26,650
 1,526
 (23,752) 5,434
Balance at January 1, 20161,010
 26,650
 1,526
 (23,752) 5,434
Loss for the year
 
 
 (5,019) (5,019)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 43
 43
Total comprehensive loss for the period
 
 
 (4,976) (4,976)
New share capital issued1,556
 34,151
 
 
 35,707
Transaction costs on share capital issued
 (2,325) 
 
 (2,325)
Share options exercised during the period2
 50
 
 
 52
Share-based payments
 
 577
 
 577
Balance at December 31, 20162,568

58,526

2,103

(28,728)
34,469
Balance at January 1, 20172,568
 58,526
 2,103
 (28,728) 34,469
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the period
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the period6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 20175,251

118,862

5,022

(49,254)
79,881
 Share
Capital
 Share
Premium
 Share-based Payment
Reserve
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 2017, as previously reported2,568
 58,526
 2,103
 (28,728) 34,469
Impact of change in accounting policy
 
 
 484
 484
Balance at January 1, 2017 (Restated)2,568
 58,526
 2,103
 (28,244) 34,953
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the year
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the year6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 2017 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Balance at January 1, 2018 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Loss for the year
 
 
 (19,901) (19,901)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 38
 38
Total comprehensive loss for the year
 
 
 (19,863) (19,863)
New share capital issued15
 
 
 
 15
Share-based payments
 
 2,901
 
 2,901
Balance at December 31, 2018 (Restated)5,266
 118,862

7,923

(68,633)
63,418
Balance at January 1, 20195,266
 118,862
 7,923
 (68,633) 63,418
Impact of change in accounting policy
 
 
 (20) (20)
Adjusted Balance at January 1, 20195,266
 118,862
 7,923
 (68,653) 63,398
Loss for the year
 
 
 (31,941) (31,941)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (33) (33)
Total comprehensive loss for the year
 
 
 (31,974) (31,974)
Share-based payments
 
 2,441
 
 2,441
Balance at December 31, 20195,266

118,862

10,364

(100,627)
33,865
The currency translation reserve for 2015, 20162019, 2018, and 2017, is not considered material and as such is not presented in a separate reserve but is included in the total accumulated losses reserve.
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTS OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2019, 2018 AND 2017
 Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year ended December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(39,206) (24,133) (25,203)
Finance income(2,351) (2,783) (7,018)
Finance expense474
 1,325
 2,465
Share-based payment charge2,441
 2,901
 2,919
Increase in prepayments and other receivables(484) (640) (161)
Increase in trade and other payables449
 531
 5,363
Depreciation of property, plant, equipment and right of use asset398
 8
 7
Unrealised FX gains/ losses(8) 
 
Amortization of intangible assets106
 90
 116
Cash used in operating activities(38,181) (22,701) (21,512)
Cash inflow from taxation4,361
 4,590
 816
Net cash used in operating activities(33,820) (18,111) (20,696)
Cash flow from investing activities:     
Interest received887
 883
 128
Purchase of plant and equipment(38) (13) (9)
Payment for patents and computer software(244) (255) (208)
Purchase of short term investments(7,940) (59,700) (54,465)
Maturity of short term investments45,134
 64,366
 5,085
Net cash generated from / (used in) investing activities37,799
 5,281
 (49,469)
Cash flow used in financing activities:     
Gross proceeds from the April 2017 Global Offering
 
 70,032
Transaction costs on April 2017 Global Offering
 
 (6,786)
Repayment of finance lease liabilities(426) 
 
Net cash (used in) / generated from financing activities(426) 
 63,246
Net increase / (decrease) in cash and cash equivalents3,553
 (12,830) (6,919)
Cash and cash equivalents at the beginning of the year19,784
 31,443
 39,785
Effect of exchange rates on cash and cash equivalents(403) 1,171
 (1,423)
Cash and cash equivalents at the end of the year22,934
 19,784
 31,443



123

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019



1. General information
Verona Pharma plc and its subsidiaries (the "Company") are a clinical-stage biopharmaceutical group focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.
The Company is a public limited company, which is dual listed on the Alternative Investment MarketAIM, a market of the London Stock Exchange, and on April 27, 2017, American Depositary Shares began trading onThe Nasdaq Global Market.Market ("Nasdaq"). The company is incorporated and domiciled in the United Kingdom. The address of the registered office is 1 Central Square, Cardiff, CF10 1FS, United Kingdom.
The Company has two subsidiaries, Verona Pharma Inc. and Rhinopharma Limited ("Rhinopharma"), both of which are wholly owned.
On February 10, 2017 theThe Company effected a 50-for-1 consolidation oflisted its shares. All references to ordinary shares, options and warrants, as well as share, per share and related information in these consolidated financial statements have been adjusted to reflect the consolidation as if it had occurred at the beginning of the earliest period presented.

On April 26, 2017, the Company announced the closing of its global offering of an aggregate of 47,399,001 new ordinary shares, consisting of the initial public offering in the United States of 5,768,000 American Depositary Shares (“ADSs”("ADS") at a price of $13.50 per ADS and on Nasdaq in April 2017 ("the private placement in Europe of 1,255,001 ordinary shares at a price of £1.32 per ordinary share, for gross proceeds of $80 million (the “Global Offering”2017 Global Offering"). Each ADS offered represents eight ordinary shares of the Company. The ordinary shares offered were allotted and issued in a concurrent private placement in Europe and other countries outside of the United States and Canada.
In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in a shareholder private placement separate from the Global Offering (the “Shareholder Private Placement”), contingent on and concurrent with the Global Offering and generating additional gross proceeds of £0.3 million.
On May 15 and May 23, 2017, pursuant to the Global Offering, the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS, for additional gross proceeds of $9.9 million bringing the total gross proceeds in the Global Offering to $89.9 million (£70.0 million). Including the Shareholder Private Placement, the total gross proceeds of the capital raising amounted to $90.3 million (£70.3 million).
The ADSs began tradingtrade on theThe Nasdaq Global Market under the ticker symbol “VRNA” on April 27, 2017.and Verona Pharma’s ordinary shares continue to trade on the AIM market of the London Stock Exchange (“AIM”) under the symbol “VRP”.


F-7124

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

2. Accounting policies
A summary of the principal accounting policies, all of which have been applied consistently throughout the year, is set out below.
2.1  Basis of preparation
The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRSs") as issued by the International Accounting Standards Board and IFRS Interpretations Committee and with the Companies Act 2006 applicable to companies reporting under IFRS.
The consolidated financial statements have been prepared under the historical cost convention, with the exception of derivative financial instruments which have been measured at fair value.
The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires management to exercise its judgementjudgment in the process of applying the Company's accounting policies. The areas involving a higher degree of judgementjudgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in note 4.
Going concern
DuringThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the yearyears ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had aan accumulated loss of £20.5 million (2016: £5.0 million).£100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of December 31, 2017,the issuance date of the annual consolidated financial statements, the Company had net assets of £79.9 million (2016: £34.5 million) of which £80.3 million (2016: £39.8 million) wasexpects that its cash and cash equivalents, would be sufficient to fund its operating expenses and short term investments.
The operation of the Company is currently being financed from funds that the Company raised from share placings. On May 2nd, 2017, the company raised $89.9 million (£70 million) from the initial public offering in the United States. On July 29, 2016, the Company raised gross proceeds of £44.7 million from a placing, subscription and open offer (the "July 2016 Placement"). These funds are expected to be used primarily to support the development of RPL554 in chronic obstructive pulmonary disease ("COPD"), other chronic respiratory diseases as well as corporate and general administrative expenditures.
The Directors believe that the Company has sufficient funds to complete the current clinical trials, to cover corporate and general administration costs and for it to comply with all commitmentscapital expenditure requirements for at least 12 months from the endissuance date of these annual consolidated financial statements. Accordingly, the reporting periodconsolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and accordingly, are satisfiedwhich contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the going concern basis remains appropriate forCompany will be successful in securing additional finance on acceptable terms, or at all, and should the preparationCompany be unable to raise sufficient additional funds it will be required to defer the initiation of these consolidatedPhase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial statements.condition.
Business combination
The Company applies the acquisition method to account for business combinations. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred to the former owners of the acquiree and the equity interests issued by the Company. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement and the fair value of any pre-existing equity interest in the subsidiary.arrangement. The excess of the cost of acquisition over the fair value of the Company's share of the identifiable net assets acquired is recorded as goodwill. Goodwill arising on acquisitions is capitalized and is subject to an impairment review, both annually and when there are indications that the carrying value may not be recoverable.
Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. Acquisition-related costs are expensed as incurred and included in administrative expenses.

125

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Basis of consolidation
These consolidated financial statements include the accountsfinancial statements of Verona Pharma plc and its wholly owned subsidiaries Verona Pharma, Inc. and Rhinopharma. The acquisition method of accounting was used to account for the acquisition of Rhinopharma.

F-8

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Inter-company transactions, balances and unrealized gains on transactions between group companies are eliminated.
Verona Pharma Inc. and Rhinopharma adopt the same accounting policies as the Company.
2.2  Foreign currency translation
Items included in the Company's consolidated financial statements are measured using the currency of the primary economic environment in which the Entityentity operates ("the functional currency"). The consolidated financial statements are presented in pounds sterling ("£"), which is the functional and presentational currency of the Company and the presentational currency of the Company.
Transactions in foreign currencies are recorded using the rate of exchange ruling at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are translated using the rate of exchange ruling at the balance sheet date and the gains or losses on translation are included in the Consolidated Statement of Comprehensive Income. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the exchange rates at the dates of the original transactions. Non-monetary items measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined.
The assets and liabilities of foreign operations are translated into pounds sterling at the rate of exchange ruling at the balance sheet date. Income and expenses are translated at weighted average exchange rates for the period. The exchange differences arising on translation for consolidation are recognized in Other Comprehensive Income.
2.3  Cash and cash equivalents
Cash and cash equivalents includes cash in hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less.
2.4  Deferred taxation
Deferred tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred tax is determined using tax rates (and laws)and laws that have been enacted or substantially enacted by the balance sheet date and expected to apply when the related deferred tax is realized or the deferred liability is settled.
Deferred tax assets are recognized to the extent that it is probable that the future taxable profit will be available against which the temporary differences can be utilized.
2.5  Research and development costs
Capitalization of expenditure on product development commences from the point at which technical feasibility and commercial viability of the product can be demonstrated and the Company is satisfied that it is probable that future economic benefits will result from the product once completed. No such costs have been capitalized to date, given the early stage of the Company's product candidate development.date.
Expenditure on research and development activities that do not meet the above criteria is charged to the Consolidated Statement of Comprehensive Income as incurred.

126

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.6  Property, plant and equipment
Property, plant and equipment are stated at cost, net of depreciation and any provision for impairment. Cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is calculated so as to write off the cost less their estimated residual

F-9

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

values, on a straight-line basis over the expected useful economic lives of the assets concerned. The principal annual periods used for this purpose are:
Computer hardware3 years
Office equipment5 years
2.7  Intangible assets and goodwill
(a)Goodwill
Goodwill arises on the acquisition of subsidiaries and represents the excess of the consideration transferred over the fair value of the identifiable net assets acquired.
(b)Patents
Patent costs associated with the preparation, filing, and obtaining of patents are capitalized and amortized on a straight-line basis over the estimated useful lives of the patents of ten years.
(c)Computer software
Amortization is calculated so as to write off the cost less estimated residual values, on a straight-line basis over the expected useful economic life of two years.
(d)In-process research & development ("IPRIP R&D")
The IP R&D assetsasset acquired through a business combinations which, at the time of acquisition, havecombination, that had not reached technical feasibility, arewas initially recognized at fair value. Subsequent movements in the assumed contingent liability (see 2.12) that relate to changes in estimated cashflows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. There were no changes in estimated cashflows or probabilities of success in the years ended 31 December, 2019, or 2018.
This is a change in accounting policy as prior to January 1, 2019, movements in the assumed contingent liability were taken to the Statement of Comprehensive Income (see note 2.17). As a result of the change in accounting policy £484 thousand was restated from Accumulated Loss to the IP R&D asset.
The amounts are capitalized and are not amortized but areasset is subject to impairment testing until completion, abandonment of the projectsproject or when the research findings are commercialized through a revenue generating project. The Company determines whether intangible assets (including goodwill) are impaired on an annual basis and this requires the estimationor when there is an indication of the higher of fair value less costs of disposal and value in use. Upon successful completion or commercialization of the relevant project, IP R&D will be reclassified to developed technology. The Company will make a determination as to the then useful life of the developed technology, generally determined by the period in which the substantial majority of the cash flows are expected to be generated, and begin amortization. In case of abandonment the asset will be impaired.
2.8  Impairment of intangible assets, goodwill and non-financial assets
Goodwill and intangible assets that have an indefinite useful life and intangible assets not ready to use are not subject to amortization. These assets are tested annually for impairment or more frequently if impairment indicators exist. Non-financial assets that are subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is recognized for the amount by which the asset's carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset's fair value (less costs of disposal) and value in use.
For the purpose of assessing impairment, assets are grouped at the lowest levels for which there are separately identifiable cash flows, which are largely independent of the cash flows from other assets or group of assets (cash generating units "CGUs").
Goodwill is allocated to CGUs for the purpose of impairment testing. The allocation is made to those CGUs or groups of CGUs that are expected to benefit from the business combination in which the goodwill arose. The units or group of units are identified at the lowest level at which goodwill is monitored for internal management purposes, being the operating segments.
The Company is a single cash generating unit. Goodwill that arose on the acquisition of Rhinopharma has been thus allocated to this single CGU. IP R&D is tested for impairment at this level as well, since it is the lowest level at which independent cash flows can be identified.impairment.

F-10127

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)

Non-financial2.8  Impairment of intangible assets, othergoodwill and non-financial assets
The Company holds intangible assets relating to acquired IP R&D, patent costs and goodwill. Goodwill and intangible assets are tested annually for impairment or if there is an indication of impairment. The Company is a single cash generating unit ("CGU") so all intangibles are allocated to the Company as one CGU.
As at 31 December, 2019, and 2018 the Company carried out impairment reviews with reference to its market capitalization. At points during the year ended 31 December 2019, the Company's market capitalization was less than goodwill,its net assets. As a result, the Company carried out an impairment review by forecasting expected sales of ensifentrine, delivered by nebulizer for the maintenance treatment of chronic COPD, and associated costs. This cashflow forecast was then discounted to its net present value to demonstrate that have been previously impaired are reviewed for possible reversalthe value in use of the impairment at each subsequent reporting date.ensifentrine was greater than the Company's net assets. The Company was required to make various estimates and assumptions as inputs for this model including, but not limited to:
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
costs of the Company's overhead;
size and make up of a sales force;
probabilities of success; and
discount rate.

2.9  Employee Benefits
(a)Pension
(a)    Pension
The Company operates a defined contribution pension schemeschemes for UKits employees. Contributions payable for the year are charged to the Consolidated Statement of Comprehensive Income. The contributions are recognized as employee benefit expense when they are due. Differences between contributions payable in the year and contributions actually paid are shown as either accruals or prepayments in the Consolidated Statement of Financial Position. The Company has no further payment obligationliability once the contributions have been paid.
(b)Bonus plans
(b)    Bonus plans
The Company recognizes a liability and an expense for bonus plans if contractually obligated or if there is a past practice that has created a constructive obligation.liability.
2.10  Share-based payments
The Company operates a number of equity-settled, share-based compensation schemes. The fair value of share-basedshare based payments under such schemes is expensed on a straight-line basis over the vesting period, based on the Company's estimate of shares that will eventually vest.
Where equity settled transactions are entered into with third party service providers, fair value is determined by reference to the value of the services provided in lieu of payment. The expense is measured based on the services received at the date of receipt of those services and is charged to the Consolidated Statement of Comprehensive Income over the period for which the services are received and a corresponding credit is made to reserves. For other equity-settled transactions fair value is determined using the Black-Scholes model and requires several assumptions and estimates as disclosed in note 16.17.
The fair value of share-based payments under these schemes is expensed on a straight-line basis over the share based payments' vesting periods, based on the Company's estimate of shares that will eventually vest.

128

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.11  Provisions
Provisions are recognized when the Company has a present legal or constructive obligationliability as a result of past events, it is probable that an outflow of resources will be required to settle the obligation,liability, and the amount can be reliably estimated. Provisions are measured at the present value of the expenditures expected to be required to settle the obligationliability using a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the obligation.liability.
2.12  Assumed contingent obligationliability related to the business combinationscombination
On September 19,In 2006 the Company acquired Rhinopharma for a total consideration of £1.52 million payable in ordinary shares. In addition, the Companyand assumed certain contingent obligationsliabilities owed by Rhinopharma to Vernalis under anPharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. (“Ligand”). The Company refers to the assignment and license agreement (the "assumed contingent consideration") followingas the sale of IP by Vernalis to Rhinopharma. Pursuant to the agreement Vernalis (i)Ligand Agreement.
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds (the "Vernalis"Ligand Patents") and (ii) granted to the Company an exclusive, worldwide, royalty-bearing license under certain VernalisLigand know-how to develop, manufacture and commercialize products (the "Licensed Products") developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds.
The assumed contingent obligationliability comprises (a) a milestone payment on obtaining the first approval of any regulatory authority for the commercialization of a Licensed Product; (b)Product, low to mid singlemid-single digit royalties based on the future sales performance of all Licensed Products;Products and (c) a portion equal to a midtwentymid-twenty percent of any consideration received from any sub-licensees for the VernalisLigand Patents and for VernalisLigand know-how. On the date of

F-11

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

acquisition theThe liability was initially recognized at fair value of theand subsequently measured at amortized cost. The assumed contingent obligation wasliability is estimated as the expected value of the milestone payment and royalty payments and sub-license payments,payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement was thenis discounted back to its net present value applying an effective interest rate of 12%. The initial fair value of the assumed contingent obligation as of December 31, 2006 was deemed to be insignificant at the date of the acquisition, so it was not recorded.

The amount of royaltiesRoyalties payable under the agreement isare based on the future sales performance of certain products, and so the total amount payable is unlimited. The level of salesSales that may be achieved under the
agreement isare difficult to predict and subject to estimate, which is inherently uncertain.
The value of this assumed contingent obligationliability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes. The assumed contingent obligation is accounted for as a liability,
Remeasurements relating to changes in estimated cash flows and any adjustments made to the valueprobabilities of the liability will besuccess are recognized in the Consolidated Statement of Comprehensive IncomeIP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the period.

year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
2.13  Government and other grants
The Company may receive government, regional or charitable grants to support its research efforts in defined projects where these grants provide for reimbursement of approved costs incurred as defined in the respective grants. Income in respect of such grants would include contributions towards the costs of research and development. Income would be recognized when costs under each grant are incurred in accordance with the terms and conditions of the grant and the collectability of the receivable is reasonably assured. Government, regional and charitable grants relating to costs would be deferred and recognized in the Consolidated Statement of Comprehensive Income over the period necessary to match them with the costs they are intended to compensate. When the cash in relation to recognized government, regional or charitable grants is not yet received the amount is included as a receivable on the Consolidated Statement of Financial Position.
Where the grant income is directly related to the specific items of expenditure incurred, the income would be netted against such expenditure. Where the grant income is not a specific reimbursement of expenditure incurred, the Company would include such income under "Other income" in the Consolidated Statement of Comprehensive Income. Grants or investment credits may be repayable if the Company successfully commercializes a relevant program that was funded in whole or in part by the grant or investment credit within a particular timeframe. Prior to successful commercialization, the Company would not make any provision for repayment.
2.14  Financial instruments — initial recognition and subsequent measurement
The Company classifies a financial instrument, or its component parts, as a financial liability, a financial asset or an equity instrument in accordance with the substance of the contractual arrangement and the definitions of a financial liability, a financial asset and an equity instrument.
The Company evaluates the terms of the financial instrument to determine whether it contains an asset, a liability or an equity component. Such components shall be classified separately as financial assets, financial liabilities or equity instruments.
A financial instrument is any contract that gives rise to a financial asset of one entity and a financial liability or equity instrument of another entity.
(a)Financial assets, initial recognition and measurement and subsequent measurement
AllThe Company has no financial assets not recorded at fair value through profit or loss such as receivables and deposits,("FVPTL"). All assets are initially recognized initially at fair value plus transaction costs. costs and subsequently measured at amortized cost using the effective interest method.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement

Financial assets carriedliabilities are classified as measured at fair value through profitamortized cost or loss are initially recognized at fair value, and transaction costs are expensed in the income statement.FVTPL.

F-12129

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)


The measurement of financial assets depends on their classification. Financial assets suchCompany's warrants are classified as receivablesFVTPL and deposits are subsequently measured at amortized cost. The Company does not hold any financial assets at fair value throughgains and losses are recognized in profit or loss or available for sale financial assets.loss.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement
Financial liabilities are classified, at initial recognition, as financial liabilities at fair value through profit or loss, loans and borrowings, or payables, as appropriate. All
Other financial liabilities are initially recognized initially at fair value and in the case of loans and borrowings and payables, net of directly attributable transaction costs.
The measurement of financial assets and financial liabilities depends on their classification. Financial liabilities at fair value through profit or loss include financial liabilities held for trading and financial liabilities designated upon initial recognition as at fair value through profit or loss. These are subsequently measured at fair value with any gains or losses recognized in profit or loss. All other financial liabilities are measured at amortized cost using the effective interest methodmethod. Interest expense and foreign exchange gains and losses are recognized in profit or loss. Any gain or loss on derecognition is also recognized in profit or loss.
The Company's financial liabilities include trade and other payables, the Company's warrants and derivative financial instruments.the assumed contingent liability.
(c)    Derivative financial instruments
Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently re-measured at fair value at the end of each reporting date. The Company holds only one type of derivative financial instrument, the warrants, as explained in Note 2.15.2.14.
The full fair value of the derivative is classified as a non-current liability when the warrants are exercisable in more than 12 months and as a current liability when the warrants are exercisable in less than 12 months.
Changes in fair value of a derivative financial liability when related to a financing arrangement are recognized in the Consolidated Statement of Comprehensive Income within Finance incomeIncome or Finance expense. Fair value gains or losses on derivatives used for non-financing arrangements are recognized in other operating income or expense.Expense.

130

2.15  Warrants
VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.14  Derivative financial instrument - warrants
Warrants issued by the Company to investors as part of a share subscription are compound financial instruments where the warrant meets the definition of a financial liability.
The financial liability component is initially measured at fair value in the Consolidated Statement of Financial Position. Equity is measured at the residual between the subscription price for the entire instrument and the liability component. The financial liability component is remeasured depending on its classification.remeasured. Equity is not remeasured.
2.162.15  Short Term Investments
Short term investments include fixed term deposits held at banks with original maturities of more thanbetween three months but less thanand a year. They are classified as loans and receivables and are measured at amortized cost using the effective interest method.

2.172.16  Transaction costs
Qualifying transaction costs might be incurred in anticipation of an issuance of equity instruments and may cross reporting periods. The entity defers these costs on the balance sheet until the equity instrument is recognized. Deferred costs are subsequently reclassified as a deduction from equity when the equity instruments are recognized, as the costs are directly attributable to the equity transaction. If the equity instruments are not subsequently issued, the transaction costs are expensed. Any costs not directly attributable to the equity transaction are expensed.

F-13

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Transaction costs that relate to the issue of a compound financial instrument are allocated to the liability and equity components of the instrument in proportion to the allocation of proceeds. Where the liability component is held at fair value through profit or loss, the transaction costs are expensed to the Consolidated Statement of Comprehensive Income. For liabilities held at amortized cost, transaction costs are deducted from the liability and subsequently amortized. The amount of transaction costs accounted for as a deduction from equity in the period is disclosed separately in accordance with International Accounting Standard (“IAS 1.1”).
2.17  Changes in accounting policy
Accounting for the assumed contingent liability
As discussed in note 2.12, in 2006 the Company acquired Rhinopharma and assumed contingent liabilities owed to Vernalis Pharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. ("Ligand").
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to ensifentrine and related compounds and an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize products. The assumed contingent liability comprises a milestone payment on obtaining the first approval of any regulatory authority and royalties based on the future sales of ensifentrine.
The initial fair value of the assumed contingent liability was estimated as the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, an assessment of the probability of success using standard market probabilities for respiratory drug development discounted to net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.
Up to the year ended December 31, 2018, movements in the liability relating to re-measurements of cash flows or changes in the probabilities of success were taken to the Consolidated Statement of Comprehensive Income. During the year ended December 31, 2019, the Company reviewed the accounting for this item and has determined that these movements in the liability will now be recognized in the cost of the corresponding asset. The corresponding asset is the intangible IP R&D asset.

131

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

The Company believes that this change in accounting policy results in the Consolidated Financial Statements providing a more relevant and reliable view of its financial position and performance because without an adjustment to the IP R&D asset on the re-measurement of the liability, the cost of the asset would not be fairly reflected on the Consolidated Statement of Financial Position. The Consolidated Statement of Financial Position more faithfully represents the financial position of the Company if the intangible asset is adjusted by any re-measurement of the liability for changes in estimated cash flows, to give a fairer reflection of the cost of the intangible asset.
The Company has reviewed the International Financial Reporting Interpretations Committee ("IFRIC") discussion of accounting for variable payments made for the purchase of an intangible asset that is not part of a business combination that concluded that it was too broad for it to address within the confines of existing IFRS standards. As a result, practice in this area is mixed and many pharmaceutical companies follow a cost accumulation model. The Company also noted that adjusting the cost of the asset when a liability is remeasured for changes in estimated cash flows is consistent with the guidance in IFRIC 1 for decommissioning liabilities and IFRS 16 for lease liabilities.   
There were no such re-measurements of the liability in the years ended December 31, 2019, 2018 and 2017. Movements in the liability in these periods related to the unwinding of the discount and movements in exchange rates.
IAS 8 requires opening balance of each affected component of equity to be adjusted for the earliest prior period presented and the other comparative amounts disclosed for each prior period presented as if the new accounting policy had always been applied.
The impact to the Group, therefore, is the restatement of £484 thousand from Accumulated Loss to the IP R&D asset, which relates to re-measurements recorded prior to January 1, 2017. As there were no re-measurements in the years ended December 31, 2019, 2018 and 2017 the £484 thousand adjustment is the same at each reporting period.
The following table is a summary of the restatement:

Financial statement line item As reported Adjustment for the change in accounting policy As adjusted
January 1, 2017 £'000s £'000s £'000s
       
Accumulated loss 28,728
 (484) 28,244
Intangible assets - IP R&D 1,469
 484
 1,953
This adjustment also increases non-current assets, total assets and total equity by £484 thousand in each of the years presented.
Adoption of IFRS 16
IFRS 16 ‘Leases’ is effective for accounting periods beginning on or after January 1, 2019 and replaces IAS 17 ‘Leases’. It eliminates the classification of leases as either operating leases or finance leases and, instead, introduces a single lessee accounting model. The adoption of IFRS 16 resulted in the Group recognizing lease liabilities within current liabilities, and corresponding right-of-use assets.
The Group’s principal lease arrangements are for office space. The Group has adopted IFRS 16 retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings at January 1, 2019. The standard permits a choice on initial adoption, on a lease-by-lease basis, to measure the right-of-use asset at either its carrying amount as if IFRS 16 had been applied since the commencement of the lease, or an amount equal to the lease liability, adjusted for any accrued or prepaid lease payments as at the time of adoption. The Group has elected to measure the right-of-use asset at its carrying value as if IFRS 16 had been applied since the commencement of the lease, with the result of a £20 thousand reduction in opening total accumulated losses.

132

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Initial adoption resulted in the recognition of right-of-use assets of £326 thousand and lease liabilities of £316 thousand.
£'000s
Lease commitments (including prepayments) disclosed as at December 31, 2018600
Less: adjustments relating to prepaid lease payments(28)
Lease commitments as at December 31, 2018572
Discounted using the group’s incremental borrowing rate526
Less: short-term leases recognized on a straight-line basis as expense(210)
Lease liability recognized as at January 1, 2019316
In applying IFRS 16 for the first time, the group has used the following practical expedients permitted by the standard:
the use of a single discount rate of 8% to a portfolio of leases with reasonably similar characteristics;
accounting for leases with a remaining lease term of less than 12 months as at January 1, 2019, as short-term leases; and
the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease.
The Company is applying IFRS 16’s low-value and short-term exemptions. The adoption of IFRS 16 has had no impact on the Group’s net cash flows, although a presentation change has been reflected in 2019 whereby cash outflows of £426 thousand are now presented as financing, instead of operating. General and administrative costs are £123 thousand lower than if IFRS 16 not been adopted, as depreciation of the right of use asset is less than the lease costs. There is a £50 thousand increase in finance expense from the presentation of a portion of lease costs as interest costs. There is no significant impact on overall loss before tax and loss per share.
At the time of adoption it was not reasonably certain that the Company would extend the leases. However, in the period the Company determined that this was the case and agreed extensions. As a result it recognized an additional liability and right-of-use asset of £1,047 thousand.
2.18  New standards, amendments and interpretations adopted by the Company
The following amendments havestandard has been adopted by the Company for the first time for the financial year beginning on or after January 1, January, 2017. It did not materially impact the Company’s results:2019:

· Annual Improvements to IFRS Standards 2014-2016 Cycle,
· Disclosure initiative - amendments to IAS 7, and
· Recognition of Deferred Tax Assets for Unrealized Losses - Amendments to IAS 12.

IFRS 16 "Leases"
The amendments to IAS 7 require disclosure of changes in liabilities arising from financing activities, seeCompany adopted IFRS 16 on January 1, 2019, and, as a consequence, changed its accounting policies. See note 3.3.

2.17.
2.19  New standards, amendments and interpretations issued but not effective for the financial year beginning January 1, 20172019 and not early adopted
A number of newThere are no IFRS standards and amendments to standards andor interpretations have been issued but are not yet effective for annual periods beginning after January 1, 2017 (noted below), andthat would be expected to have not been adopted in preparing these consolidated financial statements.
IFRS 9 "Financial instruments" (effective for annual periods beginning on or after January 1, 2018)
IFRS 15 "Revenue from contracts with customers" (effective for annual periods beginning on or after January 1, 2018
IFRS 16 "Leases" (effective for annual periods beginning on or after January 1, 2019)
IFRS 9 will have noa material impact on the accounting or measurement of any of the financial instruments the Company currently holds.
IFRS 15 will have no impact on the financial statements of the Company as it is not currently revenue generating.
IFRS 16 is effective for accounting periods beginning on or after 1 January 2019 and will replace IAS 17 'leases'. It will eliminate the classification of leases as either operating leases or finance leases and, instead, introduce a single lessee accounting model. The adoption of IFRS 16 will result in the Company recognizing lease liabilities and corresponding 'right to use' assets for agreements that are currently classified as operating leases. See note 20 for further details on operating leases held.Group.

F-14133

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

3. Financial Instruments
3.1  Financial Risk Factors
The Company's activities have exposed it to a variety of financial risks: market risk (including currency risk and interest rate risk), credit risk, and liquidity risk. The Company's overall risk management program is focused on preservation of capital and the unpredictability of financial markets and has sought to minimize potential adverse effects on the Company's financial performance and position.
(a)Currency risk
Foreign currency risk reflects the risk that the Company's net assets will be negatively impacted due to fluctuations in exchange rates. The Company has not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
The summary quantitative datedata about the Company's exposure to currency risk is as follows. Figures are the pound sterling values of balances in each currency:

 Year Ended December 31, 2016   Year Ended December 31, 2017
  USD EUR   USD EUR
  £'000s £'000s   £'000s £'000s
Cash and cash equivalents 10,631
 242
   16,806
 301
Short term Investments 
 
   19,718
 
Trade and other payables 305
 180
   276
 403

December 31, 2019 December 31, 2018
 GBP USD EUR GBP USD EUR
 £'000s £'000s £'000s £'000s £'000s £'000s
Cash and cash equivalents18,517
 4,399
 18
 11,293
 8,470
 21
Short term Investments6,316
 1,507
 
 19,850
 25,069
 
Trade and other payables3,226
 4,306
 728
 2,872
 4,329
 532
Sensitivity Analysis
A reasonably possible strengthening (weakening)or weakening of the Euro USor U.S. dollar or Sterling against all other currencies atpounds sterling as of December 31, December2019 and 2018 would have affected the measurement of the financial instruments denominated in a foreign currency (excluding the assumed contingent liability).
The following table shows how a movement in a currency would give rise to a profit or (loss) and affected equity and profit and loss by the amounts shown below. This analysis assumes that all other variables remain constant.a corresponding entry in equity.
 Profit or loss and equity
 Strengthening Weakening
December 31, 2017£'000s £'000s
EUR (5% movement)35
 (35)
USD (5% Movement)1,840
 (1,840)
December 31, 2016£'000s £'000s
EUR (5% movement)21
 (21)
USD (5% Movement)547
 (547)
 Profit or loss and equity
 Strengthening Weakening
December 31, 2019£'000s £'000s
EUR (5% movement)(36) 36
USD (5% Movement)80
 (80)
December 31, 2018£'000s £'000s
EUR (5% movement)(26) 26
USD (5% Movement)1,461
 (1,461)
Foreign currency denominated trade payables are short term in nature (generally 30 to 45 days). The Company has a U.S. operation, the net assets of which are exposed to foreign currency translation risk.
Estimated cashflows relating to the assumed contingent liability are predominantly denominated in US dollars. In the years ended December 31, 2019, and 2018, movements in foreign exchange rates were not material and no sensitivity analysis is therefore provided.
(b)Credit risk
Credit risk reflects the risk that the Company may be unable to recover contractual receivables. As the Company is still in the development stage no policies are currently required to mitigate this risk.

F-15134

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

For banks and financial institutions, only independently rated parties with a minimum rating of "B+" are accepted. The Directors recognize that this is an area in which they may need to develop specific policies should the Company become exposed to further financial risks as the business develops.
As of December 31, 2017,2019, and December 31, 2016,2018, cash and cash equivalents and short term investments were placed at the following banks:
Cash and Cash EquivalentsYear ended December 31, 2016 
Credit
rating
 Year ended December 31, 2017 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland11,287
 A3
 16,623
 A2
Lloyds Bank28,447
 A1
 13,448
 Aa3
Standard Chartered
 
 1,242
 A1
Wells Fargo51
 Aa1
 130
 Aa1
Total39,785
   31,443
  

Cash and Cash EquivalentsYear ended December 31, 2019 
Credit
rating
 Year ended December 31, 2018 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland1
 A1 150
 A1
Lloyds Bank8,355
 Aa3 15,862
 Aa3
Citibank6,529
 Aa3 3,135
 A1
Barclays1,968
 A1 449
 A2
Wells Fargo111
 Aa1 188
 Aa1
Close Brothers5,970
 Aa3 
 
Total22,934
   19,784
  

Short Term InvestmentsYear ended December 31, 2016Credit
rating
Year ended December 31, 2017Credit
rating
£'000£'000
Banks
Royal Bank of Scotland

15,316
A2
Lloyds Bank

11,036
Aa3
Standard Chartered

22,467
A1
Wells Fargo


Aa1
Total
48,819

Short Term InvestmentsYear ended December 31, 2019 Credit
rating
 Year ended December 31, 2018 Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland5,616
 A1 9,186
 A1
Lloyds Bank
 Aa3 1,567
 Aa3
Standard Chartered
 A1 15,450
 A1
Citibank
 Aa3 7,053
 A1
Barclays2,207
 A1 11,663
 A2
Total7,823
   44,919
  

(c)    Management of capital
The Company considers capital to be its equity reserves. At the current stage of the Company's life cycle, the Company's objective in managing its capital is to ensure funds raised meet the research and operating requirements until the next development stage of the Company's suite of projects.
The Company ensures it is meeting its objectives by reviewing its Key Performance Indicators ("KPIs") to ensure the research activities are progressing in line with expectations, costs are controlled and unused funds are placed on deposit to conserve resources and increase returns on surplus cash held.
(d)Interest rate risk
As of December 31, 2017,2019, the Company had cash deposits of £31.4£22.9 million (2016: £39.8(2018: £19.8 million) and short term investments of £48.8£7.8 million (2016: nil) (2018: £44.9 million). The rates of interest received during 20172019 ranged between 0.0% and 1.73%2.87%. A 0.25% increase in interest rates would not have a material impact on finance income.Theincome. The Company's exposure to interest rate risk, which is the risk that the interest received will fluctuate as a result of changes in market interest rates on classes of financial assets and financial liabilities, was as follows:


F-16
135

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)



 December 31, 2016 December 31, 2017
 
Floating
interest rate
 
Fixed
Interest rate
 
Floating
interest rate
 
Fixed
Interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits11,338
 28,447
 25,720
 5,723
Short Term Investments
 
 
 48,819
Total11,338
 28,447
 25,720

54,542

 December 31, 2019 December 31, 2018
 
Floating
interest rate
 
Fixed
interest rate
 
Floating
interest rate
 
Fixed
interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits10,006
 12,928
 15,082
 4,702
Short Term Investments
 7,823
 
 44,919
Total10,006
 20,751
 15,082
 49,621

(e)Liquidity risk
The Company periodically prepares periodic working capital forecasts for the foreseeable future, allowing an assessment of the cash requirements of the Company, to manage liquidity risk. The following table provides an analysis of the Company's financial liabilities. The carrying value of all balances is equalapproximates to their fair value. The Company's maturity analysis for the derivative financial instrument from the issue of warrants is given in note 19.18.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2016       
Trade payables719
 
 
 
Other payables54
 
 
 
Accruals2,050
 
 
 
Contingent obligation
 
 
 1,807
Total2,823
 
 
 1,807
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2019       
Trade payables1,455
 
 
 
Accruals6,806
 
 
 
Lease liability476
 557
 
 
Assumed contingent liability(1)

 
 
 1,807
Total8,737
 557
 
 1,807
This table includes the undiscounted amount of the assumed contingent liability. See note 20.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2018       
Trade payables2,839
 
 
 
Other payables12
 
 
 
Accruals4,882
 
 
 
Assumed contingent liability(1)

 
 
 1,807
Total7,733
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation.liability. See note 18.
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2017       
Trade payables1,214
 
 
 
Other payables74
 
 
 
Accruals5,866
 
 
 
Contingent obligation
 
 
 1,807
Total7,154
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation. See note 18.20.


F-17136

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.2  Fair value estimation
The carrying amounts of cash and cash equivalents, receivables, accounts payable and accrued liabilities approximate to fair value due to their short-term nature. The carrying amount of the assumed contingent liability approximates to fair value as the underlying assumptions are currently similar. 
For financial instruments that are measured in the Consolidated Statement of Financial Position at fair value, IFRS 7 requires disclosure of fair value measurements by level of the following fair value measurement hierarchy:
Quoted prices (unadjusted) in active markets for identical assets or liabilities (level 1);
Inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly (level 2); and
Inputs for the asset or liability that are not based on observable market data (level 3).
For the year ended December 31, 2017,2019, and 2016,2018, fair value adjustments to financial instruments measure at fair value through profit and loss resulted in the recognition of finance income of £6.7£1.6 million in 2019 and £1.1a finance loss of £1.2 million respectively.in 2018.
The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. These valuation techniques maximize the use of observable market data where it is available and rely as little as possible on entity specific estimates. If all significant inputs required to ascertain the fair value of an instrument are observable, the instrument is included in level 2. If one or more of the significant inputs are not based on observable market data, the instrument is included in level 3.
 Level 3 Total
 £'000s £'000s
At December 31, 2017   
Derivative financial instrument1,273
 1,273
Total1,273
 1,273
 Level 3 Total
 £'000s £'000s
At December 31, 2019   
Derivative financial instrument895
 895
Total895
 895

Movements in Level 3 items during the years ended December 31, 2016,2019, and 20172018 are as follows:
Derivative financial instrument2016 2017
 £'000s £'000s
At January 1
 7,923
Initial recognition of derivative financial instrument8,991
 
Fair value adjustments recognized in profit and loss(1,068) (6,650)
At December 317,923
 1,273
Derivative financial instrument2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit and loss(1,597) 1,219
At December 31895
 2,492

Further details relating to the derivative financial instrument are set out in notes 4 and 1918 of these financial statements.
In determining the fair value of the derivative financial instrument, the Company applied the Black Scholes model; key inputs include the share price at reporting date, estimations on timelines, volatility and risk-free rates. These assumptions and the impact of changes in these assumptions, where material, are disclosed in note 19.18.

F-18137

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.3  Change in liabilities arising from financing activities
The Company has provided a reconciliation so that changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes can be evaluated.
 December 31, 20172019
 Derivative financial instrument
 £'000s
At January 17,9232,492
Fair value adjustments - non cash(6,6501,597)
At December 311,273895

See note 1918 for information relating to the derivative financial instrument.

2019
Lease liability
£'000s
At January 1316
Capitalization of rental leases - non cash1,061
Payment of lease liability - cash(426)
At December 31951

See note 14 and note 2.17 for information relating to the capitalized leases.
4. Critical accounting estimates and judgments
The preparation of financial statements in conformity with IFRS requires the use of accounting estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Although these estimates are based on management's best knowledge of current events and actions, actual results ultimately may differ from those estimates. IFRS also requires management to exercise its judgment in the process of applying the Company's accounting policies.
The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are as follows:
(a)    Assumed contingent obligationliability
The Company has a material obligationliability for the future payment of royalties and milestones associated with contractual obligationsliabilities on RPL554, a development productensifentrine, acquired as part of the acquisition of RhinopharmaRhinopharma. The estimation of the fair valueamounts and timing of the assumed contingent obligation on acquisitionfuture cashflows requires the selectionforecast of an appropriate valuation model, consideration as to the inputs necessary for the valuation model chosen,royalties payable and the estimation of the likelihood that the regulatory approval milestone will be achieved (see notes 2.12 and estimates of the future cash flows and their timing (for further detail see note 19)20). The estimates for the assumed contingent obligationliability are based on a discounted cash flow model. Key assessments and judgmentsestimates included in the fair value calculation of deferred consideration are:
development, regulatory and marketing risks associated with progressing the product to market approval in key target territories;
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
launch of competitive products; and
discount rate and time to crystallization of contingent consideration.

In accordance with IAS 39 ("Financial Instruments Recognition and Measurement" (para AG8)), when there is a change in the expected cash flows, the assumed contingent obligation is re-measured with the change in value

F-19138

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Critical accounting estimates and judgments (continued)

launch of competitive products;
probabilities of success; and
time to crystallization of contingent consideration.
going through
When there is a change in the Consolidated Statement of Comprehensive Income. Cash flow estimates are revised when the probabilityexpected cash flows or probabilities of success, changes.the assumed contingent liability is re-measured with the change in value recognized in the IP R&D asset it relates to. This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The assumed contingent obligationliability is measured at amortized cost with the discount unwinding in the Consolidated Statement of Comprehensive Incomefinance expense throughout the year. Actual outcomes could differ significantly from the estimates made.
The Company has judged that the probabilities of success will change when it moves from one stage of clinical development to another. Management have determined that, for the purposes of assessing probabilities of success, the Company will move from Phase 2 to Phase 3 after an End of Phase 2 Meeting with the Food and Drug Administration ("FDA") in the US that provides confidence over ensifentrine's historical development program and planned Phase 3 program. A remeasurement of the liability at this time is likely to result in a significant increase in both the liability and the corresponding IP R&D asset.The Company has previously announced that it expects to meet with the FDA in the first half of 2020. The Company notes that there is no guarantee that the meeting will take place in the timeframe anticipated or that there will be a successful outcome.
Should the probabilities of success and estimates of cash flows change there will be a material increase in the assumed contingent liability and corresponding IP R&D asset. The amount will be dependent on feedback from the FDA and the probabilities of success applied. Should the Company determine that it has moved from Phase 2 to Phase 3 then the value of the liability could increase by between £15 million and £30 million; the increase in the value of the liability will give rise to an approximately equivalent increase in the value of the IP R&D asset, as described further in Note 2.7.
The value of the assumed contingent obligationliability as of December 31, 2017 amounts to £0.9 million. (2016: £0.8 million). The increase in value of the assumed contingent obligation during 20172019 amounted to £0.1 million (2016: £0.2£1.1 million. (2018: £1.0 million) and the movement relates to unwinding the discount on the liability and retranslating for changes in US$ exchange rates. The increase was recorded in finance expense. There was no change in the year to the probability of success and consequently cash flow estimates were not revised.
The discount percentage applied is 12%.
(b)    Valuation of the Derivative Financial Liability
In July 2016, warrants
Pursuant to the July 2016 Placement, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant. The warrants entitle the investors to subscribe for in aggregate a maximum of 12,446,37012,401,262 ordinary shares.
In accordance with IAS 32 and Companythe Company’s accounting policy, as disclosed in note 2.15,2.14, the Company classified the warrants as a derivative financial liability to be presented on the Company's Consolidated Statement of Financial Position.
The fair value of these warrants is determined by applying the Black-Scholes model. Assumptions are made on inputs such as time to maturity, the share price,term, volatility and risk free rate in order to determine the fair value per warrant. For further details see note 19.
Transaction costs arising on the issues of these shares and warrants are allocated to the equity and warrant liability components in proportion to the allocation of proceeds.
(c)    Recognition of research and development expenditure
The Company incurs research and development expenditure from third parties. The Company recognizes this expenditure in line with the management’s best estimation of the stage of completion of each research and development project. This includes the calculation of accrued costs at each period end to account for expenditure that has been incurred. This requires management to estimate full costs to complete for each project and also to estimate its current stage of completion. The costs related to the Clinical Research Organization expenses in the year was £18.5 million. The related accruals and prepayments were £4.6 million and £0.5 million respectively.
(d)    Transaction costs related the Global Offering
The Company incurred various transaction costs relating to the Global Offering, including commissions, professional advisor fees, financial advice, listing fees and other costs. When management judged them to be incremental costs directly attributable to the transaction they were accounted for as a deduction from equity. Otherwise the costs were expensed to the consolidated income statement as incurred.

18.
5. Earnings per share
Basic loss per ordinary share of 23.4p (2016: 15.0p30.3p (2018: 18.9p and 2015: 37.1p)2017: 23.4p) for the Company is calculated by dividing the loss for the year ended December 31, 20172019 by the weighted average number of ordinary shares in issue of 87,748,031105,326,638 as of December 31, 2017 (2016: 33,499,4132019 (2018: 105,110,504 and 2015: 20,198,469)2017: 87,748,031). Potential ordinary shares are not treated as dilutive as the entity is loss making and such shares would be anti-dilutive.


F-20

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


6. Segmental reporting
The Company’s activities are covered by one operating and reporting segment: Drug Development. There have been no changes to management’s assessment of the operating and reporting segment of the Company during the period.year.
All non-current assets are based in the United Kingdom.
7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging:     
Research and development costs:     
Employee benefits (note 8)1,322
 2,037
 3,435
Amortization of patents (note 12)43
 51
 111
Legal, professional consulting and listing fees
 
 331
Loss on disposal of patents136
 
 
Other research and development expenses5,769
 2,434
 19,840
Total research and development costs7,270
 4,522
 23,717
General and administrative costs:   
  
Employee benefits (note 8)625
 865
 2,857
Legal, professional consulting and listing fees608
 884
 2,045
Amortization of computer software (note 12)
 1
 5
Loss on disposal of property, plant and equipment (note 13)
 3
 
Depreciation of property, plant and equipment (note 13)10
 10
 7
Operating lease charge — land and buildings157
 169
 294
Loss on variations in foreign exchange rate21
 139
 36
Other general and administrative expenses285
 427
 795
Total general and administrative costs1,706
 2,498
 6,039
Operating loss8,976
 7,020
 29,756




F-21139

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

8. Directors' emoluments and staff costs7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and Development5
 5
 7
General and Administrative3
 2
 5
Total8
 7
 12
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits722
 951
 897
Social security costs132
 118
 103
Incremental payment for additional services89
 44
 
Other pension costs38
 19
 17
Total directors' emoluments981
 1,132
 1,017
Share-based payment charge232
 257
 1,037
Directors' emoluments including share-based payment charge1,213
 1,389
 2,054

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries540
 1,027
 2,136
Social security costs42
 98
 182
Incremental payment for additional services
 58
 
Share-based payment charge137
 319
 1,882
Other pension costs15
 11
 38
Total other staff costs734
 1,513
 4,238
The Company operates a defined contribution pension scheme for U.K. employees and executive directors. The total pension cost during the year ended December 31, 2017 was £55 thousand (2016: £30 thousand and 2015: £53 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2017(2016 and 2015: £nil).

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging / (crediting):     
Research and development costs:     
Employee benefits (note 8)4,688
 3,360
 3,435
Amortization of patents (note 12)102
 85
 111
Legal, professional consulting and listing fees537
 161
 331
Other research and development expenses28,149
 15,688
 19,840
Total research and development costs33,476
 19,294
 23,717
General and administrative costs: 
  
  
Employee benefits (note 8)3,093
 3,240
 2,857
Legal, professional consulting and listing fees2,155
 1,296
 2,045
Amortization of computer software (note 12)4
 5
 5
Depreciation of property, plant and equipment (note 13)16
 8
 7
Depreciation of right-of-use assets (note 14)382
 
 
Operating lease charge — land and buildings
 384
 294
Loss / (gain) on variations in foreign exchange rate345
 (9) 36
Other general and administrative expenses1,612
 1,373
 795
Total general and administrative costs7,607
 6,297
 6,039
Operating loss41,083
 25,591
 29,756




F-22140

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
Finance income and expense (continued)2019

9. Finance income8. Directors' emoluments and expensestaff costs
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances45
 86
 345
Foreign exchange gain on translating foreign currency denominated bank balances
 687
 
Fair value adjustment on derivative financial instruments (note 19)
 1,068
 6,650
Other Income
 
 23
Total finance income45
 1,841
 7,018
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and development13
 7
 7
General and administrative9
 7
 5
Total22
 14
 12
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits850
 830
 897
Social security costs112
 94
 103
Incremental payment for additional services26
 26
 
Other pension costs10
 10
 17
Total directors' emoluments998
 960
 1,017
Share-based payment charge925
 1,337
 1,037
Directors' emoluments including share-based payment charge1,923
 2,297
 2,054
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate executive officers costs:     
Wages and salaries1,150
 857
 864
Social security costs98
 83
 81
Share-based payment charge751
 769
 1,332
Other pension costs21
 19
 17
Total executive officers costs2,020
 1,728
 2,294
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries2,788
 1,622
 1,272
Social security costs265
 150
 101
Share-based payment charge765
 795
 550
Other pension costs46
 34
 21
Total other staff costs3,864
 2,601
 1,944
The Company considers key management personnel to comprise directors and executive officers.
The Company operates defined contribution pension schemes for its employees and executive director. The total pension cost during the year ended December 31, 2019 was £77 thousand (2018: £63 thousand and 2017: £55 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2019 (2018 and 2017: £nil).

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Transaction costs allocated to the issue of warrants (note 19)
 586
 
Foreign exchange loss on translating foreign currency denominated balances
 
 2,392
Remeasurement of assumed contingent arrangement (note 18)10
 122
 
Unwinding of discount factor and foreign exchange movements related to the assumed contingent arrangement (note 18)63
 86
 73
Total finance expense73
 794
 2,465

F-23141

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Taxation (continued)
9. Finance income and expense
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances754
 861
 345
Foreign exchange gain on translating foreign currency denominated balances
 1,922
 
Fair value adjustment on derivative financial instruments (note 18)1,597
 
 6,650
Other Income
 
 23
Total finance income2,351
 2,783
 7,018

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Fair value adjustment on derivative financial instruments (note 18)
 1,219
 
Interest on discounted lease liability50
 
 
Foreign exchange loss on translating foreign currency denominated balances305
 
 2,392
Unwinding of discount factor related to the assumed contingent arrangement (note 20)119
 106
 73
Total finance expense474
 1,325
 2,465

142

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

10. Taxation
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
UK tax credit(1,520) (1,067) (5,006)
US tax charge
 129
 306
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
Factors affecting the tax charge for the year     
Loss on ordinary activities(9,002) (5,973) (25,203)
Multiplied by standard rate of corporation tax of 19.25% (2016: 20% and 2015: 20.25%)(1,823) (1,195) (4,852)
Effects of:     
Non-deductible expenses114
 292
 675
Fair value adjustment on derivative financial instruments
 (214) (1,280)
Research and development incentive(600) (427) (2,116)
Temporary differences not recognized(1) (4) (2)
Difference in overseas tax rates
 56
 136
Tax losses carried forward not recognized790
 554
 2,739
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
U.K. tax credit(7,250) (4,290) (5,006)
U.S. tax charge56
 30
 306
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
      
The difference between the total tax shown above and the amount calculated by applying the standard rate of tax to the loss before tax is as follows:
Factors affecting the tax credit for the year     
Loss on ordinary activities before taxation(39,206) (24,133) (25,203)
      
Multiplied by standard rate of corporation tax of 19% (2018: 19% and 2017: 19.25%)(7,449) (4,585) (4,852)
Effects of:     
Non-deductible expenses515
 540
 675
Fair value adjustment on derivative financial instruments(303) 232
 (1,280)
Research and development incentive(3,119) (1,846) (2,116)
Temporary differences not recognized(6) (3) (2)
Difference in overseas tax rates16
 8
 136
Tax losses carried forward not recognized3,152
 1,394
 2,739
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
UKU.K. corporation tax is charged at 19.25% (2016: 20.00%19% (2018: 19.00% and 2015: 20.25%2017: 19.25%) and U.S. federal and state tax at 35% (201627.6% (2018: 27.6% and 2015:2017: 35%).
The following tables represent deferred tax balances recognized in the Consolidated Statement of Financial Position. There were no movements in either the deferred tax asset or the deferred tax liability.
 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s
Deferred tax assets250
 250
Deferred tax liabilities(250) (250)
Net balances
 
 As at December 31, 2019 As at December 31, 2018
 £'000s £'000s
Deferred tax assets332
 250
Deferred tax liabilities(332) (250)
Net balances
 
The deferred tax liability relates to the difference between the accounting and tax bases of the IP R&D intangible asset. A deferred tax asset relating to UK tax losses has been recognized and offset against the liability.
Factors that may affect future tax charges
The Company has UKU.K. tax losses available for offset against future profits in the UK.United Kingdom. However an additional deferred tax asset has not been recognized in respect of such items due to uncertainty of future profit streams. As of December 31, 2017,2019, the unrecognized deferred tax asset at 17% is estimated to be £5.43£9.27 million (2016: £3.15(2018: £6.65 million at 17%).

F-24143

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

11. Goodwill
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Goodwill at January 1 and December 31441
 441
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Goodwill at January 1 and December 31441
 441

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in connection with the acquisition of Rhinopharma in September 2006. Goodwill is not amortized, but is tested annually for impairment. Annual
The Company has one CGU so goodwill is tested for impairment together with its intangible assets. It was tested with reference to the Company's market capitalization as of December 31, 2019, the date of testing is performed by comparing the expected recoverable amountof IP R&D and goodwill impairment. The market capitalization of the CGUCompany was approximately £65.3 million as of December 31, 2019, (2018: 92.2 million) compared to the carrying amountCompany's net assets of £33.9 million (2018: £63.4 million). Therefore, no impairment was required.
The Company notes that after the reduction in its share price since December 31, 2018, and before the increase by December 31, 2019, at various points in the three months to March 31, 2019, the market value of the CGUCompany was less than its net book value. The Company therefore carried out an impairment review as at March 31, 2019. From market research the Company assessed, among other inputs, potential patient numbers from likely physician prescribing patterns, price points, the time from possible launch to which goodwill has been allocatedpeak sales, script rejection, attrition rates and probability of success. The Company also carried out a sensitivity analysis on key assumptions and assessed that a reasonable change in these assumptions would not lead to the value in use falling below net book value. Consequently, management determined that the Company's value in use exceeded the carrying amountvalue of the CGU. See note 2.8Company's assets and that no impairment was required.

At various other points in the year ended December 31, 2019, the market value of the Company was less than its net book value. Consequently, management re-performed the impairment review quarterly, and identified no changes to market conditions, the consolidated financial statements.
12. Intangiblecompetitive landscape, market research insights or other factors that would change its conclusions. As a result, management determined that the Company's value in use exceeded the carrying value of the Company's assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20161,469
 25
 482
 1,976
Additions
 5
 110
 115
Disposals
 (24) 
 (24)
At December 31, 20161,469
 6
 592
 2,067
Accumulated amortization       
At January 1, 2016
 24
 138
 162
Charge for year
 1
 51
 52
Disposals
 (24) 
 (24)
At December 31, 2016
 1
 189
 190
Net book value       
At December 31, 20161,469

5

403

1,877
and that no impairment was required at those dates.

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20171,469
 6
 592
 2,067
Additions
 5
 203
 208
Disposals
 
 (68) (68)
At December 31, 20171,469
 11
 727
 2,207
Accumulated amortization       
At January 1, 2017
 1
 189
 190
Charge for year
 5
 111
 116
Disposals
 
 (68) (68)
At December 31, 2017
 6
 232
 238
Net book value       
At December 31, 20171,469

5

495

1,969

F-25144

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Intangible assets (continued)

12. Intangible assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 2018 (Restated)1,953
 11
 727
 2,691
Additions
 4
 251
 255
Disposals
 
 (6) (6)
At December 31, 2018 (Restated)1,953
 15
 972
 2,940
Accumulated amortization       
At January 1, 2018
 6
 232
 238
Charge for year
 5
 85
 90
Disposals
 
 (6) (6)
At December 31, 2018
 11
 311
 322
Net book value       
At December 31, 2018 (Restated)1,953

4

661

2,618

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20191,953
 15
 972
 2,940
Additions
 3
 242
 245
At December 31, 20191,953
 18
 1,214
 3,185
Accumulated amortization       
At January 1, 2019
 11
 311
 322
Charge for year
 4
 102
 106
At December 31, 2019
 15
 413
 428
Net book value       
At December 31, 20191,953

3

801

2,757
Intangible assets comprise patents, computer software and an IP R&D asset that arose on the acquisition of Rhinopharma and investment in patents to protect RPL554.ensifentrine.
The IP R&D asset acquired through the business combination was initially recognized at fair value. Subsequent movements in the assumed contingent liability that relate to changes in estimated cash flows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. This is currentlya change in accounting policy (see note 2.17). The asset is not amortized and is reviewedtested annually for impairment on an annual basis or where there is an indication that the assets might be impaired until the asset is brought into use.impairment.
Patents are amortized over a period of ten years and are regularly reviewedtested annually for impairment.
Intangible assets are tested for impairment to ensure the carrying amount exceeds the recoverable amount in accordance with note 2.8.
Recognizing thatgoodwill, as the Company is still in its pre-revenue phase and thathas only one CGU. See note 11 for information about the research projects are not yet ready for commercial use, the Company assesses the recoverable amount of the CGU containing the IP R&D with reference to the Company's market capitalization as of December 31, 2017, the date of testing of goodwill impairment. The market capitalization of the Company was approximately £109.7 million as of December 31, 2017, (2016: £80.0 million) compared to the Company's net assets of £79.9 million (2016: £34.5 million). Therefore, no impairment was recognized.review.

F-26145

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

13. Property, plant and equipment
 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201643
 36
 79
Additions13
 
 13
Disposals(39) (36) (75)
At December 31, 201617
 
 17
Accumulated depreciation     
At January 1, 201639
 27
 66
Charge for the year3
 7
 10
Disposals(39) (34) (73)
At December 31, 20163
 
 3
Net book value     
At December 31, 201614



14
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201826
 26
Additions13
 13
At December 31, 201839
 39
Accumulated depreciation   
At January 1, 201810
 10
Charge for the year8
 8
At December 31, 201818
 18
Net book value   
At December 31, 201821

21


 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201717
 
 17
Additions9
 
 9
At December 31, 201726
 
 26
Accumulated depreciation     
At January 1, 20173
 
 3
Charge for the year7
 
 7
At December 31, 201710
 
 10
Net book value     
At December 31, 201716



16
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201939
 39
Additions38
 38
At December 31, 201977
 77
Accumulated depreciation   
At January 1, 201918
 18
Charge for the year16
 16
At December 31, 201934
 34
Net book value   
At December 31, 201943

43

F-27146

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

14. Right-of-use assets - property leases
The right-of-use asset relates to rented office space in London and New York where the Company generally enters in to leases for terms of less than three years. Before the adoption of IFRS 16 these leases were classified as operating leases.

The Consolidated Statement of Financial Position shows the following amounts relating to leases:

 Year ended December 31, 2019 As of January 1, 2019*
 £'000s £'000s
Right-of-use assets   
Right-of-use assets971
 326
 971
 326
    
Lease liabilities   
Current(460) (316)
Non Current(491) 
 (951) (316)

Additions to the right-of-use assets were £1,047,000 and were recognized when the Company was reasonably certain to extend the leases. The additions related to both of the Company's office locations, both of which agreements have similar terms and conditions.
To calculate the value of the lease liabilities the Company applied a discount rate of 8%.
The leases end in 2021 and 2022 and include options to extend them. The Company has determined it is not yet reasonably certain to operate the option to extend the leases and so has recognized lease payments only to these points in its calculation of the lease liabilities.
The right-of-use lease assets are depreciated over the term of the leases.
The Consolidated Statement of Comprehensive Income includes the following amounts relating to leases:

Year ended December 31, 2019Year ended December 31, 2018
£'000s£'000s
Depreciation charge of right-of-use assets
Right-of-use assets(382)
(382)
Interest expense (including finance cost)50

Expense relating to short-term leases (included in general and administrative expenses)78


The total cash outflow for leases in 2019 was £492,000.

147

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

15. Prepayments and other receivables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Prepayments1,361
 1,138
Deferred IPO costs1,527
 
Other receivables71
 672
Total prepayments and other receivables2,959
 1,810
Deferred IPO costs related to the Global Offering. These costs were offset against share premium in 2017 when the Global Offering was completed.
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Prepayments1,309
 1,362
Other receivables1,461
 1,101
Total prepayments and other receivables2,770
 2,463
The prepayments balance includes prepayments for insurance and clinical activities.
There are no impaired assets within prepayments and other receivables.
15.16. Share Capital
On February 8, 2017, the board of the Company approved a share consolidation where every 50 existing ordinary shares of £0.001 were consolidated into one ordinary share of £0.05. The movements in the Company's share capital are summarized below:
Date Description 
Number of
shares
 
Share Capital
amounts in
 £'000
January 1, 2016 
 20,198,469
 1,010
July 29, 2016 Issuance of shares 31,115,926
 1,556
September 12, 2016 Exercise of options 3,334
 
October 24, 2016 Exercise of options 3,334
 
December 28, 2016 Exercise of options 40,000
 2
As at December 31, 2016   51,361,063
 2,568
May 2, 2017 Issuance of shares 47,653,100
 2,383
May 18, 2017 Issuance of shares 5,539,080
 277
May 26, 2017 Issuance of shares 330,824
 17
September 13, 2017 Exercise of options 133,333
 6
December 31, 2017   105,017,400
 5,251

Date Description 
Number of
shares
 
Share Capital
amounts in £'000s
 
January 1, 2018   105,017,401
 5,251
August 9, 2018 Vesting of RSUs 58,112
 3
September 20, 2018 Vesting of RSUs 251,125
 12
As at December 31, 2018   105,326,638
 5,266
As at December 31, 2019   105,326,638
 5,266
The total number of authorized ordinary shares, with a nominal value of £0.05 each, is 200,000,000 (share capital of £10,000,000). All 105,017,400105,326,638 ordinary shares at December 31, 20172019 are allotted, unrestricted, called up and fully paid. All issued shares rank pari passu.
On April 26, 2017,During 2018, the Company announced the closing of its Global Offering of an aggregate of 47,399,001 newissued 309,237 ordinary shares comprising 5,768,000 American Depositary Shares (“ADSs”) at a priceupon vesting of $13.50 per ADS and 1,255,001 ordinary shares at a price of £1.32 per ordinary share. During May 2017 the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS. The total gross proceeds in the Global Offering amounted to $89.9 million (£70.0 million).employee restricted share units.



F-28

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Share Capital (continued)

In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in the Shareholder Private Placement, contingent on and concurrent with the Global Offering and generating gross proceeds of £0.3m.
Where there is a time and foreign exchange difference between proceeds from a share issue becoming due and being received, the movement is taken to Finance income or Finance expense as appropriate. In respect of the Global Offering and Shareholder Private Placement, the Company recorded a finance expense of £439 thousand arising from movements in exchange rates on funds receivable, offset by a saving on commission payable of £31 thousand, for a net finance expense of £408 thousand.
On September 13, 2017, the company issued 133,333 new shares upon exercise of share options at 110p per share, resulting in proceeds of £147 thousand to the Company.
On July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant (see note 19).
During 2016, the Company issued 46,666 ordinary shares upon exercise of employee share options.
As at December 31, 2017, the number of ordinary shares in issue was 105,017,400.  All new ordinary shares rank pari passu with existing ordinary shares.

F-29148

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

16.17. Share-based payments charge
The Company operates various share based payment incentive schemes for its staff.
In accordance with IFRS 2 "Share Based Payments," the cost of equity-settled transactions is measured by reference to their fair value at the date at which they are granted. Where equity-settled transactions were entered into with third party service providers, fair value is determined by reference to the value of the services provided. For other equity-settled transactions fair value is determined using the Black-Scholes model. The cost of equity-settled transactions is recognized over the period until the award vests. No expense is recognized for awards that do not ultimately vest. At each reporting date, the cumulative expense recognized for equity-based transactions reflects the extent to which the vesting period has expired and the number of awards that, in the opinion of the Directors at that date, will ultimately vest.
The costs of equity-settled share-based payments to employees are recognized in the Statement of Comprehensive Income, together with a corresponding increase in equity during the vesting period. During the twelve months ended December 31, 2017,2019, the Company recognized a share-based payment expense of £2.92£2.44 million (2016: £0.58 million ).(2018: £2.90 million). The charge is included within both general and administrative costs as well as in research and development costs and represents the current year's allocation of the expense for relevant share options.
The Company grants share options underoperates an Unapproved Share Option Scheme (the "Unapproved Scheme"). Under the Unapproved Scheme,under which options are granted to employees, directors and consultants to acquire shares atwere issued before 31 December 2016. The Company also operates a price to be determined by the Directors. In general, options granted prior to December 31, 2016 were granted at a premium to the share price at the date of grant and vested over a period of three years from the date of grant, one third vesting on the first anniversary of grant, a further third vesting on the second anniversary of grant and the remainder vesting on the third anniversary of grant.
Options granted since January 1, 2017 generally vest over three or four years from the date of the grant using two different methods. The first method is one third vesting over one year, the second third vesting over two years and the final third vesting over three years. The second method is one quarter vesting over one year, the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years. The vesting period is defined as the period between the date of grant and the date when the options become exercisable. The options are exercisable during a period ending ten years after the date of grant.
Options are also issued to advisors under the Unapproved Scheme. Such options generally vest immediately and are exercisable between one and two years after grant.
In 2016 the Company issued options under its tax efficient EMI Option Scheme (the "EMI Scheme"). Under the EMI Scheme,under which options were grantedissued before 31 December 2016. In 2017 the Company commenced the 2017 Incentive Award Plan under which the Company grants share options and Restricted Stock Units ("RSUs") to employees and directors whodirectors.
Since 2017 options are contracted to workissued with an exercise price at least 25 hours a week for the Company or for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price that is above the share price atthe evening before the date of issue. They vest over terms of one to four years.
RSUs also vest over terms of one to four years. In the grant andyear ended December 31, 2019, the Company modified the terms of all the RSUs issued prior January 1, 2019, to include a market based performance condition. The Company's share price must be maintained above £2 for thirty days for the RSUs to vest, in accordance with a vesting schedule determined byaddition to the Directors at the time of grant and have an exercise period of ten years from the date of grant.
The Company grants Restricted Stock Units to employees and directors.existing service condition. The RSUs vest overafter a periodfive year term irrespective of three or four years fromwhether the date£2 market condition was met. This modification did not result in an increase in the fair value of the grant using 2 different methods.RSUs. The first method is one third vesting over oneRSUs issued in the year ended December 31, 2019, also include the second third vesting over two yearssame market condition and the final third vesting over three years. The second method is one quarter vesting over onefive year the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years.term.
In the year ended December 31, 2019, under the 2017 Incentive Award Plan, the Company granted 4,656,828 (2016: 1,670,000 )5,569,050 (2018: 2,090,847) share options nil (2016: 32,000) share options under the EMI Scheme and 1,052,236 Restricted Stock Units (“RSUs”) (2016: nil)740,496 RSUs (2018: 273,390). The total fair values of the Optionsoptions and RSUs were estimated using the Black-Scholes option-pricing model for equity-settled transactions and amounted to £5.33£2.25 million (2016: £1.93(2018: £2.32 million). The cost is amortized over the vesting period of the options and RSUs on a straight-line basis.
Prior to the July 2016 Placement in 2016, management determined to take an option's contractual maximum life as an input into the Black-Scholes option-pricing model. Starting from the July 2016 Placement and in line with the continued development of the Company's clinical trials, the Company determined the time to maturity to be used in the valuation model to be better represented by the weighted-average life of the options granted.

F-30

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
16. Share-based payments charge (Continued)


Thebasis.The following assumptions were used for the Black-Scholes valuation of share options and RSUs granted in 20162018 and 2017.2019. For the options granted under the Unapproved Scheme the table indicates the ranges used in determining the fair-market values, aligning with the various dates of the underlying grants. The volatility is calculated using historichistorical weekly averages of the Company's share price over a period that is in line with the expected life of the options.
Issued in 2016EMI Scheme Unapproved
Scheme
Options granted32,000
 1,670,000
Risk-free interest rate1.42% 0.23%-1.42%
Expected life of options10 years
 5.5-10 years
Annualized volatility88.0% 74.3% - 88.0%
Dividend rate0.00% 0.00%
Vesting period3 years
 3 years
    
Issued in 2017Unapproved
Scheme
 Restricted Stock Units
Options granted4,656,828
 1,052,236
Risk-free interest rate0.29% - 0.62%
 0.42%-0.62%
Expected life of options5.5 – 7.0 years
 5.5 – 7.0 years
Annualized volatility71.3% - 73.3%
 71.3% - 73.3%
Dividend rate0.00% 0.00%
Vesting period3 and 4 years
 3 and 4 years
The Company had the following share options movements in the year ended December 31, 2017:
Year of issue Exercise
price (£)
 At January 1, 2017 
Options
granted
 
Options
exercised
 
Options
forfeited
 
Options
expired
 At December 31, 2017 Expiry date 
2012 2.50 - 7.50
 100,000
 
 
 
 
 100,000
 June 1, 2022 
2013 2
 100,000
 
 
 
 
 100,000
 April 15, 2023 
2013 2.00
 20,000
 
 
 
 (20,000) 
 June 1, 2023*
2013 2.00
 160,000
 
 
 
 
 160,000
 July 29, 2023 
2014 1.75
 110,000
 
 
 
 
 110,000
 May 15, 2024 
2014 1.75
 63,333
 
 
 
 (13,333) 50,000
 May 15, 2024*
2014 1.10 - 1.75
 200,000
 
 (133,333) 
 
 66,667
 August 6, 2018
**

2015 1.25
 82,000
 
 
 
 
 82,000
 January 29, 2025*
2015 1.25
 510,000
 
 
 
 
 510,000
 January 29, 2025 
2016 2
 260,000
 
 
 
 
 260,000
 February 2, 2026 
2016 2.00
 22,000
 
 
 
 
 22,000
 February 2, 2026*
2016 1.80
 810,000
 
 
 
 
 810,000
 August 3, 2026 
2016 1.89
 300,000
 
 
 
 
 300,000
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 
 4,656,828
 
 
 
 4,656,828
 April 26, 2027 
Total   3,037,333
 4,656,828
 (133,333) 
 (33,333) 7,527,495
   
*Options granted under the EMI Scheme.
* *    Valued based on fair value of services received.

and RSUs.

F-31149

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)



Issued in 2018 Unapproved
Scheme
 Restricted Stock Units
Options granted 2,090,847
 273,390
Risk-free interest rate 1.08% - 1.22%
 1.08% - 1.22%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 69.88% -71.35%
 69.88% -71.35%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
     
Issued in 2019 Unapproved
Scheme
 Restricted Stock Units
Options granted 5,569,050
 740,496
Risk-free interest rate 0.39% - 0.82%
 0.76% - 0.82%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 67.98% - 69.71%
 63.82% - 69.71%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
The Company had the following Restricted Share Unitsshare options movements in the year ended December 31, 2017:2019:
Year of issue Exercise
price
(£)
 At January 1, 2017 Units
granted
 Units
exercised
 Units
forfeited
 Units
expired
 At December 31, 2017 Expiry date
2017   
 1,052,236
 
 
 
 1,052,236
 April 26, 2027
Total   

1,052,236







1,052,236
  
Year of issue Exercise
price (£)
 At January 1, 2019 
Options
granted
 
Options
forfeited
 
Options
expired
 At December 31, 2019 Expiry date 
2012 2.50 - 7.50
 99,993
 
 
 
 99,993
 June 1, 2022 
2013 2
 99,990
 
 
 (19,998) 79,992
 April 15, 2023 
2013 2.00
 159,999
 
 
 
 159,999
 July 29, 2023 
2014 1.75
 109,998
 
 
 
 109,998
 May 15, 2024 
2014 1.75
 49,998
 
 
 
 49,998
 May 15, 2024*
2015 1.25
 41,997
 
 
 
 41,997
 January 29, 2025*
2015 1.25
 549,999
 
 
 
 549,999
 January 29, 2025 
2016 2
 240,000
 
 
 
 240,000
 February 2, 2026 
2016 2.00
 21,996
 
 
 
 21,996
 February 2, 2026*
2016 1.80
 676,664
 
 
 
 676,664
 August 3, 2026 
2016 1.89
 299,997
 
 
 
 299,997
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 4,093,164
 
 
 
 4,093,164
 April 26, 2027 
2018 1.46
 2,008,319
 
 (34,614) 
 1,973,705
 March 8, 2028 
2019 570.00
 
 3,903,050
 (87,356) 
 3,815,694
 March 29, 2029 
2019 595.00
 
 346,000
 
 
 346,000
 June 11, 2029 
2019 457.00
 
 100,000
 
 
 100,000
 August 22, 2029 
2019 0.436
 
 720,000
 
 
 720,000
 November 6, 2029 
2019 445.00
 
 500,000
 
 
 500,000
 November 26, 2029 
Total   8,752,114
 5,569,050
 (121,970) (19,998) 14,179,196
   

The average fair value at grant date, by year of grant and plan, of the exercisable options as per December 31, 2017 is presented in the below table.
Year of issueEMI Scheme (£) Unapproved
Scheme (£)
 RSU (£)
20120.63 - 1.20
 
 
20130.83
 0.79 - 0.95
  
20140.76
 0.23 - 0.76
  
20150.57
 0.57
  
20161.35
 0.93 - 1.35
  
2017
 0.84
 1.33


Outstanding and exercisable share options by scheme as of December 31, 2017:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved7,313,473
 773,333
 1.50
 1.64
EMI213,984
 185,333
 3.06
 3.28
Total7,527,457
 958,666
 1.54
 1.95

As at December 31, 2017 there were no restricted share options exercisable (2016: nil) and there is no exercise price for restricted share options.





The options outstanding at December 31, 2017 had a weighted average remaining contractual life of 8.6 years (2016: 8.2 years). For 2016 and 2017, the number of options granted and expired and the weighted average
*Options granted under the EMI Scheme.

F-32150

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)


The Company had the following RSU movements in the year ended December 31, 2019:
Year of issue Exercise
price
(£)
 At January 1, 2019 Units
granted
 Units
vested
 Units
forfeited
 At December 31, 2019 Expiry date 
2017   729,987
 
 
 
 729,987
 April 26, 2027 
2018   132,486
 
 
 
 132,486
 March 8, 2028 
2019     740,496
 
 
 740,496
 March 29, 2027 
Total   862,473
 740,496
 
 
 1,602,969
   
Outstanding and exercisable share options by scheme as of December 31, 2019:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved13,965,212
 5,552,293
 1.12
 1.55
EMI213,984
 213,984
 3.06
 3.06
Total14,179,196
 5,766,277
 1.15
 1.61
As of December 31, 2019 there were no restricted share options exercisable (2018: nil) and there is no exercise price for restricted share options.
The options outstanding at December 31, 2019 had a weighted average remaining contractual life of 7.7 years (2018: 8.0 years). For 2018 and 2019, the number of options granted and expired and the weighted average exercise price of options were as follows:
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2016 1,792,000
 1.78
Options granted in 2016:    
Employees 1,002,000
 1.92
Directors 700,000
 2.05
Options exercised in the year (46,666) 1.12
Options forfeited in the year (150,001) 1.24
Options expired in the year (260,000) 2.46
At December 31, 2016 3,037,333
 1.87
Exercisable at December 31, 2016 846,667
 2.25
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2018 7,527,458
 1.53
Options granted in 2018:    
Employees 1,222,089
 1.46
Directors 868,758
 1.46
Options forfeited in the year (799,524) 1.43
Options expired in the year (66,667) 1.75
At December 31, 2018 8,752,114
 1.53
Exercisable at December 31, 2018 3,542,884
 1.66

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2017 3,037,333
 1.87
Options granted in 2017:    
Employees 3,150,846
 1.32
Directors 1,505,982
 1.32
Options exercised in the year (133,333) 1.10
Options forfeited in the year 
 
Options expired in the year (33,333) 1.90
At December 31, 2017 7,527,495
 1.53
Exercisable at December 31, 2017 797,333
 2.04

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2019 8,752,114
 1.53
Options granted in 2019:    
Employees 4,042,106
 0.55
Directors 1,526,944
 0.53
Options forfeited in the year (121,970) 0.82
Options expired in the year (19,998) 2.00
At December 31, 2019 14,179,196
 1.15
Exercisable at December 31, 2019 5,766,277
 1.60
The following table shows the number of RSUs issued, exercised and forfeited in 2017. No RSUs were granted in 2016 and none of the RSUs granted in 2017 were forfeited, canceled or vested in the year.2018. The fair value of each unvested RSU at grant date was £1.32.£1.46.

151

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
17. Share-based payments charge (Continued)


  Number of
RSUs
At January 1, 20172018 1,052,236
Granted:  
Employees 705,841136,404
Directors 346,395136,986
RSUs vested in the year(309,237)
RSUs forfeited in the year(153,916)
At December 31, 2018862,473
The following table shows the number of RSUs issued in 2019. There were no RSUs forfeited, canceled or vested in 2019. The fair value of each unvested RSU granted in 2019 was £0.57.
Number of
RSUs
At January 1, 2019862,473
Granted:
Employees474,072
Directors266,424
RSUs vested in the year
RSUs forfeited in the year
At December 31, 20172019 1,052,2361,602,969


F-33

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


17. Trade and other payables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Trade payables719
 1,214
Other payables54
 74
Accruals2,050
 5,866
Total trade and other payables2,823
 7,154
As of December 31, 2016, accruals included £0.89 million related to expenses associated with the Global Offering which was fully paid during the year ended December 31, 2017.
18. Assumed contingent obligation related to the business combinationDerivative financial instrument
The value of the assumed contingent obligation as of December 31, 2017 amounts to £875 thousand (2016: £802 thousand). The increase in value of the assumed contingent obligation during 2017 amounted to £73 thousand (2016: £208 thousand ) and was recorded in finance expense as it related to the unwind of the discount on the liability and retranslation for changes in US$ exchange rates. Periodic re-measurement is triggered by changes in the probability of success. In 2016 the remeasurement was triggered by the success of the Company's Phase 2a clinical trial, presented in March 2016. The discount percentage applied is 12%. In 2017 there were no events that triggered remeasurement.
 2016 2017
 £'000s £'000s
January 1594
 802
Re-measurement of assumed contingent obligation86
 
Impact of changes in foreign exchange rates37
 (23)
Unwinding of discount factor85
 96
December 31802
 875
The table below describes the reported change to the value of the liability during 2017 of £73 thousand (2016: £208 thousand) compared to what this number would be following the presented variations to the underlying assumptions (assuming the probability of success does not change):
 2016 2017
 £'000s £'000s
Change in value of the assumed contingent obligation208
 73
10% lower revenue assumption202
 72
10% higher revenue assumption215
 73
1% lower risk assumption205
 69
1% higher risk assumption211
 76

F-34

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


19. Warrants
Pursuant to the July 2016 Placement, onOn July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant.
The warrant holders can subscribe for 0.4 of an ordinary share at a per share exercise price of 120% of the placing price or £1.7238. The warrant holders can opt for a cashless exercise of their warrants, whereby the warrant holders can choose to exchange the warrants held for reduced number of warrants exercisable at nil consideration. The reduced number of warrants is calculated based on a formula considering the share price and the exercise price of the warrants. The warrants are therefore classified as a derivative financial liability, since their exercise could result in a variable number of shares to be issued.
The warrants entitled the investors to subscribe for, in aggregate, a maximum of 12,446,37012,401,262 shares. The warrants can be exercised on the earlier of the consummation of the Global Offering (being April 26, 2017) or the first anniversary of the grant, and the exercise period shall end on the fifth anniversary of the date of grant (being July 29, 2021).
The ordinary shares and warrants were accounted for as a compound financial instrument. The warrants component of the instrument issued at the July 2016 Placement was classified as a derivative financial liability and was initially measured at fair value of £9.0 million. The residual amount of proceeds totaling £35.7 million was recognized within equity. Subsequently the financial liability was re-measured at the reporting date at fair value through profit or loss.
The total of transaction costs the Company incurred for the above transactions amounted to £2.9 million of which £0.6 million was allocated to the warrants and the remaining £2.3 million was presented as a reduction to share premium, by reference to the proceeds allocated to each component. The amount assigned to the financial liability of the warrants was subsequently presented as finance expense in the Consolidated Statement of Comprehensive Income.until May 2, 2022.
In the year ended December 31, December 20172019, no warrants over 45,108 shares were forfeited (2016:(2018: nil).
The table below presents the assumptions in applying the Black-Scholes model to determine the fair value of the warrants.
 As of December 31, 2016 As of December 31, 2017
Shares available to be issued under warrants

12,446,370
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.088% 0.420%
Expected term to exercise2.43 years
 1.79 years
Annualized volatility73.53% 47.35%
Dividend rate0.00% 0.00%
 As of December 31, 2019 As of December 31, 2018
Shares available to be issued under warrants12,401,262
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.540% 0.760%
Expected term to exercise2.34 years
 3.34 years
Annualized volatility65.56% 60.72%
Dividend rate0.00% 0.00%

The figures disclosed above relating to the issue
152


As per the reporting date, the Company updated the underlying assumptions and calculated a fair value of these warrants amounting to £1.3£0.9 million. The variance of £6.7£(1.6) million is recorded as finance income in the Consolidated Statement of Comprehensive Income.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit or loss(1,597) 1,219
At December 31895
 2,492
For the amount recognized at December 31, 2019, the effect when the following parameter deviates up or down is presented in the below table.
Volatility
(up / down
10% pts)
£'000s
Variable up1,306
Base case, reported fair value895
Variable down535
19. Trade and other payables
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Trade payables1,455
 2,839
Other payables
 12
Accruals6,806
 4,882
Total trade and other payables8,261
 7,733
20. Assumed contingent liability related to the business combination
The value of the assumed contingent liability as of December 31, 2019 is £1.1 million (2018: £1.0 million). The increase in value of the assumed contingent liability during 2019 amounted to £0.1 million (2018: £0.1 million).
The assumed contingent liability relates to the acquisition, in 2006, of rights to certain patents and patent applications relating to ensifentrine and related compounds under which the Company is obliged to pay royalties to Ligand (see 2.12).
The assumed contingent liability is measured at the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement is discounted back to its net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.

F-35153

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
19. Warrants (Continued)2019

Re-measurements relating to changes in estimated cash flows and probabilities of success are recognized in the IP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
The Company considers that probabilities of success will change when it moves from one stage of clinical development to another. See note 4 for a further discussion of this.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2016 2017
 £'000s £'000s
At January 1
 7,923
On issuance of shares8,991
 
Fair value adjustments recognized in profit or loss(1,068) (6,650)
At December 317,923
 1,273
 2019 2018
 £'000s £'000s
January 1996
 875
Impact of changes in foreign exchange rates(12) 15
Unwinding of discount factor119
 106
December 311,103
 996

There is no material difference between the fair value and carrying value of the financial liability.
For the amount recognized as at December 31, 2017,2019, of £1,103 thousand, the effect when some of theseif underlying parameters wouldassumptions were to deviate up or down is presented in the below table.following table (assuming the probability of success does not change):
 
Volatility
(up / down
10% pts)
 
Time to
maturity
(up / down
6 months)
 £'000s £'000s
Variable up1,921
 1,677
Base case, reported fair value1,273
 1,273
Variable down694
 843
20. Financial commitments


Discount rate
(up / down
1 % pt)
Revenue
(up / down
10 % pts)
 £'000s£'000s
Variable up1,0671,135
Base case, reported fair value1,1031,103
Variable down1,1411,071

As of December 31, 2017, the Company was committed to making the following payments under non-cancellable operating leases related to its facilities.
 
Land and
Buildings
 
Land and
Buildings
 2016 2017
 £'000s £'000s
Operating lease obligations:   
Within one year270
 291
Between one and five years
 277
Total270
 568

F-36154

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

21.22. Related parties transactions and other shareholder matters
(i)    Related party transactions
The Directors have authority and responsibility for planning, directing and controlling the activities of the Company and they therefore comprise key management personnel as defined by IAS 24, ("Related Party Disclosures").
Directors and key management personnel remuneration is disclosed in note 8.
(ii)    Other shareholder matters
The Company has entered into the following arrangements with parties who are significant shareholders of the Company, though they are not classed as related parties.
The Company entered into relationship agreements with Vivo CapitalVentures Fund VIII ("VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. (collectively, "Vivo Capital"), Orbimed Private Investments VI L.P. ("Orbimed"), and Abingworth Bioventures VI L.P. ("Abingworth"), and Arix Bioscience plc ("Arix") and Arthurian Life Sciences SPV GP Limited, ("Arthurian"). As agreed in these relationship agreements, the above parties invested in the Company as part of the July 2016 Placement, and the Company agreed to appoint representatives designated by Vivo Capital, OrbiMed Abingworth, and Arix and Arthurian,Abingworth to the board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair and Dr. Ken Cunningham respectively.Sinclair.
The appointment rights within the relationship agreement with Arix and Arthurian terminated on closing of the Global Offering on April 26, 2017;2017. Dr Cunningham has agreed to continue to serve on the Company's board of directors as an independent director. The respective appointment rights under the remaining relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of the issued ordinary shares, or (ii) the ordinary shares ceasing to be admitted to AIM.
Piers Morgan, Chief Financial Officer of the Company, and his spouse purchased 88,415 ordinary shares in total for £53 thousand from the market in the year ended December 31, 2019 (2018: £nil).
Dr. Jan-Anders Karlsson, Chief Executive Officer of the Company, purchased 3,250 ordinary shares for £5 thousand from the market in the year ended December 31, 2018. There was no similar transaction as at December 31, 2019.
Dr. David Ebsworth, Chairman of the Company, purchased 247,600 ordinary shares for £124 thousand from the market in the year ended December 31, 2019 (2018: £14 thousand).
At December 31, 2018, there was a receivable of £126 thousand due from one director and two key management personnel relating to tax due on RSUs that vested in the year ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. There was no such balance as at December 31, 2019.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
22. Events after the reporting date
On February 3, 2020, the Company announced the appointment of David Zaccardelli as chief executive officer with effect from February 1, 2020, following the retirement of Jan-Anders Karlsson, PhD. The Company also entered into a management rights agreement with Novo A/S under which Novo A/S was entitled to appoint an observer to the Board;announced the appointment rights within the management rights agreement terminated on closing of the Global Offering on April 26, 2017.Mark Hahn as chief financial officer with effect from March 1, 2020, as successor to Piers Morgan.





F-37155
000s £'000sResearch and development costs£(4,522) £(23,717) $(32,087)£(33,476) $(44,419) £(19,294)General and administrative costs(2,498) (6,039) (8,170)(7,607) (10,094) (6,297)Operating loss(7,020) (29,756) (40,257)(41,083) (54,513) (25,591)Finance income1,841
 7,018
 9,495
2,351
 3,120
 2,783
Finance expense(794) (2,465) (3,335)(474) (629) (1,325)Loss before taxation(5,973) (25,203) (34,097)(39,206) (52,022) (24,133)Taxation — credit954
 4,706
 6,367
7,265
 9,640
 4,232
Loss for the year(5,019) (20,497) (27,730)(31,941) (42,382) (19,901)Other comprehensive income / (loss): 
    Other comprehensive (loss) / income     Exchange differences on translating foreign operations43
 (29) (39)(33) (44) 38
Total comprehensive loss attributable to owners of the company£(4,976) £(20,526) $(27,769)£(31,974) $(42,426) £(19,863)


Comparison of Operations for the Years ended December 31, 20172019 and 20162018
The operating loss for the year ended December 31, 20172019 was £29.8£41.1 million (2016: £7.0(2018: £25.6 million) and the loss after tax for the year ended December 31, 20172019 was £20.5£31.9 million (2016: £5.0(2018: £19.9 million).
Research and Development Costs
Research and development costs were £23.7£33.5 millionfor the year ended December 31, 2019 as compared to £19.3 million for the year ended December 31, 20172018, an increase of £14.2 million. The cost of clinical trials increased by £12.7 million as there were two active trials in the year ended December 31, 2018, compared to £4.5four clinical trials in the year ended December 31, 2019. Pre-clinical costs increased by £0.3 million which was offset by a reduction in contract manufacturing and formulation development costs by £0.4 million. Personnel related costs increased by £1.3 million in the year ended December 31, 2019, compared to the prior year.
General and Administrative Costs
General and administrative costs were £7.6 million for the year ended December 31, 2016, an increase of £19.2 million. The increase was attributable2019 as compared to a £12.3 million increase in clinical trial expenses related to the initiation of four, and completion of two, Phase 2 clinical trials of RPL554. In addition we increased spending on contract manufacturing and other formulation work by £2.7 million and toxicology and other pre-clinical development by £1.2m. Our salary costs increased by £0.3m and our share-based payment charge by £1.2 million as we expanded our team and initiated a new long term incentive plan to drive development of RPL 554. Furthermore, our spend on third party consultants increased by £0.8 million and patent and other costs by £0.3 million.
General and Administrative Costs
General and administrative costs were £6.0£6.3 million for the year ended December 31, 2017 as compared to £2.5 million for the year ended December 31, 2016, 2018, an increase of £3.5£1.3 million. The increase was primarily attributable to £0.8a £0.9 million increase in our salarycosts relating to commercial market research, a £0.3 million increase in personnel related costs and a £1.1£0.6 million increase in our share-based payment charge as we built the team to support the activities of the Company. Thereother overhead costs. This was an increase of £1.3offset by a £0.5 million of costsdecrease in preparation for and relating to the Global Offering, as well as ongoing compliance and other costs due to listing our ADSs on the Nasdaq stock market. We also incurred costs of £0.4 million developing our commercial strategy for RPL 554.share based payments.
Finance Income and Expense
Finance income was £7.0£2.4 million for the year ended December 31, 20172019 and £1.8£2.8 million for the year ended December 31, 2016.2018. The decrease was due to a loss in foreign exchange on cash and short term investments (recorded as a finance expense) compared to £1.9 million gain in the prior year. This was offset by a £1.6 million decrease in the fair value of the warrant liability in the year ended December 31, 2019 compared to an increase in the liability in the year ended December 31, 2018 (which is a non-cash item, recorded as a finance incomeexpense).
Finance expense was primarily£0.5 million for the year ended December 31, 2019, as compared to £1.3 million for the year ended December 31, 2018. The movement was due to a decrease in the fair value of the warrant liability (recorded in finance income), compared to an increase of £6.6£1.2 million caused by changesDecember 31, 2018, both non-cash items. In addition, there was a foreign exchange loss on cash and short-term investments in the underlying assumptions for measuring the liabilityDecember 31, 2019 of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £2.5 million for£0.3 million. In the year ended December 31, 2017 as compared to £0.8 million for the year ended December 31, 2016. The increase2018, there was primarily due to thea foreign exchange loss on translation of foreign currency denominated cash and cash equivalents and short term investments.gain (recorded in finance income).
As at December 31, 2017 the Company had2019, there was approximately £31.4£22.9 million in cash and cash equivalents (2016: £39.8(2018: £19.8 million) and £48.8£7.8 million in short termshort-term investments (2016: £nil)(2018: £44.9 million).
Taxation
Taxation for the year ended December 31, 20172019 amounted to a credit of £4.7£7.3 million as compared to a credit of £1.0£4.2 million for the year ended December 31, 2016,2018, an increase in the credit amount of £3.7£3.1 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the increase in the credit amount was primarily attributable to our increased expenditure on research and development.



Comparison of Operations for the Years ended December 31, 2016 and 2015
The following table sets forth our results of operations for the periods indicated.
 Year Ended December 31,
 20152016
 £000's £000's
Research and development costs(7,270) (4,522)
General and administrative costs(1,706) (2,498)
Operating loss(8,976) (7,020)
Finance income45
 1,841
Finance expense(73) (794)
Loss before taxation(9,004) (5,973)
Taxation — credit1,509
 954
Loss for the year(7,495) (5,019)
Other comprehensive income:   
Exchange differences on translating foreign operations4
 43
Total comprehensive loss attributable to owners of the company(7,491) (4,976)
Comparison of Operations for the Years ended December 31, 2016 and 2015
Research and Development Costs
Research and development costs were £4.5 million for the year ended December 31, 2016 as compared to £7.3 million for the year ended December 31, 2015,  a decrease of £2.8 million. The decrease was attributable to a £3.6 million decrease in clinical trial expenses related to the completion of our Phase 2a clinical trials of RPL554 in late 2015 and early 2016, which were partially offset by a £0.7 million increase in research and development personnel costs and a £0.1 million increase in pre-clinical research, contract manufacturing, patent and other costs.
General and Administrative Costs
General and administrative costs were £2.5 million for the year ended December 31, 2016 as compared to £1.7 million for the year ended December 31, 2015, an increase of £0.8 million. The increase was attributable to a £0.2 million increase in personnel costs, a £0.3 million increase in professional service fees and expenses, and a £0.2 million increase in other facility and office related costs.
Finance Income and Expense
Finance income was £1.8 million for the year ended December 31, 2016 and £45 thousand for the year ended December 31, 2015. The increase in finance income was primarily due to a decrease in the fair value of the warrant liability of £1.1 million caused by changes in the underlying assumptions for measuring the liability of the warrants issued in the July 2016 Placement, including the price and volatility of our ordinary shares and the unwinding of the expected life of the warrants.
Finance expense was £0.8 million for the year ended December 31, 2016 as compared to £0.1 million for the year ended December 31, 2015. The increase was primarily due to the inclusion of the proportion of expenses incurred in connection with the July 2016 Placement which related to the issue of warrants, and which were recorded as a finance expense (the remainder of the July 2016 Placement expenses related to the equity issued and were recorded as a charge against share premium), as well as an increase in the calculated value of the assumed contingent obligation resulting from the Vernalis Agreement.
Taxation
Taxation for the year ended December 31, 2016 amounted to a credit of £1.0 million as compared to a credit of £1.5 million for the year ended December 31, 2015, a decrease in the credit amount of £0.5 million. The credits are obtained at a rate of 14.5% of 230% of our qualifying research and development expenditure, and the decrease in the credit amount was primarily attributable to our decreased expenditure on research and development.

B. Liquidity and Capital Resources
Overview
Since our inception, we have incurred significant operating losses. We anticipate that we will continue to incur losses for at least the next several years. We expect that our research and development and general and administrative costs will increase in connection with conducting clinical trials for RPL554 and seeking marketing approval for RPL554 in the United States and Europe as well as other jurisdictions. As a result, we will need additional capital to fund our operations, which we may obtain from additional financings, research funding, collaborations, contract and grant revenue or other sources.
We do not currently have any approved products and have never generated any revenue from product sales or otherwise. To date, we have financed our operations primarily through the issuances of our equity securities, including warrants. Since our
The Company has incurred recurring losses since inception, we raised gross proceedsincluding net losses of approximately £145£31.9 million, from private placements of equity securities, of which approximately £70£19.9 million was raised in Apriland £20.5 million for the years ended December 31, 2019, 2018 and 2017, through our Nasdaq listing and the accompanying private offering in Europe and the shareholder private placement; we raised a further £45 million raised in our July 2016 private placement of equity securities with a number of European and U.S.-based healthcare specialist investment firms. Asrespectively. In addition, as of December 31, 2017, we2019, the Company had an accumulated loss of £100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that its cash and cash equivalents, would be sufficient to fund its operating expenses and capital expenditure requirements for at least 12 months from the issuance date of £31.4 million. Asthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of December 31, 2017 weassets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional finance on acceptable terms, or at all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also held short term investments (representing bank deposits with maturitiesforce the Company to delay, reduce or eliminate some or all of greater than 3 months at inception)its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of £48.8 million.operations and financial condition.
We have no ongoing material financing commitments, such as lines of credit or guarantees, that are expected to affect our liquidity over the next five years, other than leases.
Cash Flows
The table below summaries our cash flows for each of the periods presented. For the convenience of the reader, we have translated pound sterling amounts as of December 31, 2019 at the noon buying rate of the Federal Reserve Bank of New York on December 31, 2019, which was £1.00 to $1.3269. These translations should not be considered representations that any such amounts have been, could have been or could be converted into U.S. dollars at that or any other exchange rate as of that or any other date.
 Year Ended December 31,
 2016 2017
 £000's
 £000's
 $000's
Net cash used in operating activities£(5,588) £(20,696) $(28,000)
Net cash used in investing activities(41) (49,469) (66,927)
Net cash from financing activities41,203
 63,246
 85,566
Net increase / (decrease) in cash and cash equivalents£35,574
 £(6,919) $(9,361)

 Year Ended December 31,
 2019 2018
 £'000s
 $'000s
 £'000s
Net cash used in operating activities£(33,820) $(44,876) £(18,111)
Net cash generated from investing activities37,799
 50,155
 5,281
Net cash used in financing activities(426) (565) 
Net increase / (decrease) in cash and cash equivalents£3,553
 $4,714
 £(12,830)
The decreaseincrease in net cash used in operating activities to £20.7£33.8 million for the year ended December 31, 20172019, from £5.6£18.1 million for the year ended December 31, 20162018, was primarily due to an increase in loss before taxation driven by higher research and development costs.
Theoperating activities of £15.5 million, which principally comprises the increase in netclinical trial and other research expenditure amounting to £14.2 million together with an increase in General and Administrative expenditure of £1.3 million, each of which are described further above.
Net cash used in(used in) / generated from investing activities to £49.5predominantly reflects the net movement of cash being placed on deposit for more than three months and such deposits maturing, because deposits of more than three months are disclosed as short-term investments, separately from cash. Net cash generated from investing activities was £37.8 million for the year ended December 31, 20172019, compared to net cash generated from £41 thousandinvesting activities of £5.3 million for the year ended December 31, 20162018. In 2019, there was duea net decrease in short-term deposits of three months or more reflecting a higher value of short-term deposits maturing, and being transferred to placing funds raised incash, than being placed. We balance the Global Offering on termobjective of obtaining higher interest income from longer-term deposits with maturitiesshort-term liquidity requirements.

There was £0.4 million repayment of more than three months at inception.
The net cash of £63.2 million received fromfinance lease liabilities in financing activities to for the year ended December 31, 2017 was the cash raised from the Global Offering. The £41.2 million received2019, relating to payments for leased office space. There were no financing activities for the year ended December 31, 2016 was the cash received from the sale of our equity securities and warrants in connection with the July 2016 Placement.2018.
Operating and Capital Expenditure Requirements
As of December 31, 2017,2019, we had an accumulated loss of £49.3£100.6 million. We expect to continue to incur significant operating losses for the foreseeable future as we continue our research and development efforts and seek to obtain regulatory approval and commercialization of RPL554ensifentrine and any future product candidate we develop.
We anticipate that our expenses will increase substantially if and as we:

initiate and conduct our plannedPhase 3 clinical trials for RPL554ensifentrine for the maintenance treatment of COPDCOPD;
continue the clinical development of our DPI and as a treatment for acute COPD;pMDI formulations of ensifentrine and research and develop other formulations of ensifentrine;
initiate and conduct our plannedfurther clinical trials for RPL554ensifentrine for the treatment of CF;
continue the research and development ofacute COPD, CF or any other formulations of RPL554, including developing our DPI andpMDI formulations of RPL554;indication;
initiate and progress pre-clinical studies relating to other potential indications of RPL554;ensifentrine;
seek to discover and develop additional product candidates;
seek regulatory approvals for any of our product candidates that successfully completescomplete clinical trials;
potentially establish a sales, marketing and distribution infrastructure and scale-up manufacturing capabilities to commercialize any products for which we may obtain regulatory approval;
maintain, expand and protect our intellectual property portfolio;
add clinical, scientific, operational, financial and management information systems and personnel, including personnel to support our product development and potential future commercialization efforts and to support our continuing operations as a UK and U.S. public company listed on the Nasdaq;company; and
experience any delays or encounter any issues from any of the above, including but not limited to failed studies, complex results, safety issues or other regulatory challenges.
We expectThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had an accumulated loss of £101.1 million. The Company expects to continue to generate operating losses for the foreseeable future. As of the issuance date of the annual consolidated financial statements, the Company expects that our existingits cash and cash equivalents, and short-term investments will enable uswould be sufficient to fund ourits operating expenses and capital expenditure requirements throughfor at least 12 months from the endissuance date of ourthese annual consolidated financial statements. Accordingly, the consolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 2 development of nebulized RPL554 and our proof-of-concept development with DPI and pMDI formulations of RPL5543 program for the maintenance treatment of COPD as well as our Phase 2 development of nebulized RPL554once it believes it has alignment with the FDA on its planned design for the treatment of CF. We have basedPhase 3 clinical program. The Company will require significant additional funding to initiate and complete this estimate on assumptions that may prove to be wrong,Phase 3 program and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of RPL554 and any future product candidates and because the extent to which we may enter into collaborations with third parties for development of RPL554 is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of RPL554. Our future capital requirements for RPL554 or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for RPL554 or any future product candidates and the potential that we may be required to conduct additional clinical trials for RPL554;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of RPL554 or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for RPL554 or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to RPL554 any future product candidates;
any licensing or milestone fees we might have to pay during future development of RPL554 or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of RPL554 or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of RPL554 or any future product candidates, if approved.

Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantialsecure the required capital to fund the program.   The Company will seek additional funds to achieve our business objective.
Adequatefunding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the Company will be successful in securing additional funds may not be available to usfinance on acceptable terms, or at all. all, and should the Company be unable to raise sufficient additional funds it will be required to defer the initiation of Phase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial condition.
To the extent that we raise additional capital through the sale of equity or convertible debt securities, yourthe ownership interest of our shareholders and ADS holders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect yoursuch holders’ rights as a shareholder.shareholder or ADS holder. Any future debt financing or preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute yourour security holders’ ownership interests.

If we raised additional funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.
Our future capital requirements for ensifentrine or any future product candidates will depend on many factors, including:
the progress, timing and completion of pre-clinical testing and clinical trials for ensifentrine or any future product candidates and the potential that we may be required to conduct additional clinical trials for ensifentrine;
the number of potential new product candidates we decide to in-license and develop;
the costs involved in growing our organization to the size needed to allow for the research, development and potential commercialization of ensifentrine or any future product candidates;
the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
the time and costs involved in obtaining regulatory approvals for ensifentrine or any future product candidate we develop and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to ensifentrine or any future product candidates;
any licensing or milestone fees we might have to pay during future development of ensifentrine or any future product candidates;
selling and marketing activities undertaken in connection with the anticipated commercialization of ensifentrine or any future product candidates, if approved, and costs involved in the creation of an effective sales and marketing organization; and
the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of ensifentrine or any future product candidates, if approved.
Our commercial revenues, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if ever. Accordingly, we will need to obtain substantial additional funds to achieve our business objective.
C. Research and Development, Patent and Licenses, etc.
For a discussion of our research and development activities, including amounts spent on company-sponsored research and development activities for the last three financial years, see “ItemItem 4.B. Business Overview”Overview and “ItemItem 5.A. Operating Results.
D. Trend Information
Other than as disclosed elsewhere in this Annual Report, we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our net revenues, income from continuing operations, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future operating results or financial conditions. For more information, see “ItemItem 4.B. Business Overview,” “Item Item 5.A. Operating Results, and “ItemItem 5.B. Liquidity and Capital Resources.
E. Off-Balance Sheet Arrangements
During the periods presented, we did not, and we do not currently, have any off-balance sheet arrangements.
F. Contractual Obligations and Commitments
The table below summarizes ourCompany has contractual obligations at December 31, 2017.
 Payments Due by Period
 Total 
Less than
1 year
 
1 - 3
years
 
3 - 5
years
 
More than
5 years
 (£000's)
Operating lease obligations568
 291
 277
 £— £—
Total568
 291
 277
 £— £—
commitments for office space, in London and New York. After the adoption of IFRS 16 these are recognized as right of use assets on the Consolidated Statement of Financial Position. As a result they are not disclosed as operating lease liabilities.
The table above does not includeCompany has assumed contingent obligationliability payments we may be required to make under the VernalisLigand Agreement because the amount, timing and likelihood of payment are not known. Such additional payment obligationsliabilities may be material. See sections titled "— License Agreement with Vernalis"Ligand" and "Business — VernalisLigand Agreement."

In addition, we enter into contracts in the ordinary course of business with contract research organizations, ("CROs")or CROs, to assist in the performance of our research and development activities and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the table of contractual obligationsliabilities and commitments.



Selected Quarterly Financial Data (unaudited)
Selected quarterly results from operations for the year ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts).
 Fiscal 2017 Quarter Ended
 December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017
 £'000s £'000s £'000s £'000s
Research and development costs9,689
 6,085
 4,838
 3,105
General and administrative costs998
 2,040
 1,969
 1,032
 Fiscal 2016 Quarter Ended
 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
 £'000s £'000s £'000s £'000s
Research and development costs1,868
 1,409
 522
 723
General and administrative costs1,085
 752
 350
 311


ITEM 6: DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
A. Executive Officers and Directors
The following table presents information about our executive officers, directors, and directors,other key members of management, including their ages as of February 27, 2017:

the date of this Annual Report:
Name Age Position
Executive Officers    
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharm.D. 6355 President, Chief Executive Officer and Director
Piers Morgan 5153 Chief Financial Officer
Kenneth Newman,Claire Poll52General Counsel
Kathleen Rickard, M.D. 6061 Chief Medical Officer
Peter Spargo, Ph.D.Other Key Management 56
Richard Hennings50Vice President and Commercial Head
Desiree Luthman60Vice President, Regulatory Affairs
Tara Rheault44Vice President, R&D Operations and Global Project Management
Peter Spargo58 Senior Vice President, Chemistry Manufacturing and Controls
Claire Poll51Legal Counsel
Richard Hennings48Commercial Director
Desiree Luthman58Vice President, Regulatory Affairs
Non-Executive Directors    
Ken Cunningham, M.D.(2)
67Non-executive Director
David Ebsworth, Ph.D.(1,2,3)
 6365 Chairman of the Board
Ken Cunningham, M.D.(2)
65Non-executive Director
Rishi Gupta(2)
 4042 Non-executive Director
Mahendra Shah, Ph.D.(3)
 7375 Non-executive Director
Andrew Sinclair, Ph.D.(1)
 4648 Non-executive Director
Vikas Sinha(1)
 5456 Non-executive Director
Anders Ullman, Ph.D.(3)
 6264Non-executive Director
Martin Edwards, M.D.64 Non-executive Director
(1)Audit and Risk Committee member
(2)Remuneration Committee member
(3)Governance Committee member
The current business addresses for our executive officers and board of directors is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE, the United Kingdom.
The following are brief biographies of our executive officers and directors:
Jan-Anders Karlsson, Ph.D.David Zaccardelli, Pharma.D. Dr. KarlssonZaccardelli has served as our President and Chief Executive Officer and on our board of directors since June 2012.February 2020. From January 2005December 2018 until its acquisition by Swedish Orphan Biovitrum for up to May 2012,$915 million in November 2019, Dr. KarlssonZaccardelli served as President and CEO of Dova Pharmaceuticals, a US company developing therapeutics for rare diseases. Previously, he was Acting CEO of Cempra, from December 2016 until the company’s merger with Melinta Therapeutics in November 2017. From 2004 until 2016, Dr Zaccardelli served in several senior management roles at United Therapeutics Corporation, including Chief ExecutiveOperating Officer, of S*BIO Pte Ltd, a biotechnology company in Singapore. Previously to S*BIO, Dr. Karlsson wasChief Manufacturing Officer and Executive Vice President, Pharmaceutical Development and headOperations. Prior to United Therapeutics, he founded and led a start-up company focused on contract research positions and held a variety of Pharma Global Researchclinical research positions at Bayer HealthCare AG in Germany.Burroughs Wellcome & Co, Glaxo Wellcome, and Bausch & Lomb Pharmaceutical. Dr. KarlssonZaccardelli received an M.Sc. in pharmacy from Uppsala University and a Doctor of Medical Science (Ph.D.) in clinical experimental pharmacologyPharm.D. from the University of Lund.Michigan.
Piers Morgan. Mr. Morgan has served as our Chief Financial Officer since September 2016. From November 2015 to September 2016, Mr. Morgan was an independent consultant. From May 2014 to November 2015, Mr. Morgan was the Chief Executive Officer of C4X Discovery plc, a biotechnology company. Prior to C4X, Mr. Morgan co-founded uniQure N.V., a biotechnology company, in Amsterdam, where he served as Chief Financial Officer from December 2009 to May 2014. Mr. Morgan is a member of the Institute of Chartered Accountants in England and Wales and received an M.A. in law and management studies from the University of Cambridge.
Kenneth NewmanKathleen Rickard, M.D. , M.D.Dr. NewmanRickard has served as our Chief Medical Officer since January 2015. From December 2013February 2019. Prior to December 2014,joining Verona Pharma, Dr. Newman was Chief Development OfficerRickard served in multiple roles at Mesoblast Inc.,Aerocrine AB, a biotechnology company. From 2010 to November 2013, Dr. Newman wasmedical diagnostics product company, including as Chief Medical Officer from April 2011 to January 2019, and as Chief Compliance Officer from April 2014 to January 2019. Prior to Aerocrine, Dr. Rickard was Vice President Clinical Development and Medical Affairs of Acton Pharmaceuticals, Inc.,the Respiratory Medicines Development Centre at GlaxoSmithKline, a specialtypharmaceutical

company, and, over a period of 15 years, held a number of other leadership positions in clinical development across GlaxoSmithKline’s global respiratory pharmaceutical company, which was acquired by Meda Pharmaceuticals, Inc.franchise. Dr. NewmanRickard received an M.D. from theHahnemann University of Texas Health Science Center at Houston and an M.B.A. in management from the University of Cincinnati College of Business.
Peter Spargo, Ph.D. Dr. Spargo has served as our Senior Vice President, Chemistry Manufacturing and Controls since May 2014. From January to October 2015, Dr. Spargo also served as Senior Vice President, CMC at Spinifex Pharmaceuticals Inc., a biotechnology company, that was acquired by Novartis International AG. From 2011 to 2013, Dr. Spargo was Senior Vice President, CMC at Creabilis SA, a pharmaceutical company. Dr. Spargo received an M.A. in natural sciences and a Ph.D. in synthetic organic chemistry from Cambridge University.Hospital, Philadelphia.
Claire Poll. Ms. Poll has served as LegalGeneral Counsel since September 2016. From September 2015 to August 2016, Ms. Poll served as an advisor to us on legal, general corporate and financing matters. She also served as an

Executive Director on our board of directors from September 2006 until September 2015. Ms. Poll received a Bachelor of Laws from the University of Western Australia and a Diploma in Applied Finance and Investment from the Securities Institute of Australia.
Desiree Luthman, DDS.David Ebsworth,Ph.D. Dr LuthmanDr. Ebsworth has served as the Non-Executive Chairman of our Vice President, Regulatory Affairsboard of directors since June 2017.December 2014. From October 2009 to August 2014, Dr. LuthmanEbsworth served as Chief Executive Officer of Vifor Pharma, based in Zürich, the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012, Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. In his earlier career, Dr. Ebsworth worked with Bayer AG for over 19 years, heading the Canadian, North American and global pharmaceutical business. He also served as Chief Executive Officer of Oxford Glycosciences, a biotech company, listed on the London Stock Exchange and Nasdaq, which was acquired by Celltech plc (now part of UCB) in 2003. Dr. Ebsworth received a Ph.D. in industrial relations from the University of Surrey.
Ken Cunningham, M.D. Dr. Cunningham has served as a Non-Executive Director on our board of directors since September 2015. Dr. Cunningham has over 25 years’ experience in the pharmaceutical industry including leadership roles at several companies focused on developing respiratory medicines. Between 2008 and 2010, he was at SkyePharma plc (now part of Vectura Group plc), initially as Chief Operating Officer and subsequently as Chief Executive Officer where he was involved in the late-stage development of flutiform for asthma. Earlier in his career, Dr. Cunningham held a variety of clinical development and commercial strategy roles at GlaxoWellcome plc and Warner-Lambert. Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena Holdings (US) LLC and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Martin Edwards, M.D. Dr. Edwards has served as a Non-Executive Director on our board of directors since April 2019. Since 2003, Dr. Edwards has held various positions at Novo Holdings, a life sciences investment firm, and most recently as part-time Senior Partner. Earlier in his career, he was Corporate VP and Global Head of Drug Development for Novo Nordisk, where he led all aspects of pre-clinical and clinical drug development. Dr. Edwards currently serves on the boards of directors of Kalvista Pharmaceuticals Inc, F2G Ltd, Harmony Biosciences Inc, Karus Therapeutics Ltd, Nuvelution Pharma Inc, and Vantia Therapeutics Ltd. Dr. Edwards trained in physiology and medicine at the University of Manchester. He is a Member of the Royal College of Physicians, a Member with distinction of the Royal College of General Practitioners, a Fellow of the Faculty of Pharmaceutical Medicine and holds a MBA from the University of Warwick.
Rishi Gupta. Mr. Gupta has served as a Non-Executive Director on our board of directors since July 2016. Mr. Gupta was designated for appointment to our board of directors by OrbiMed Private Investments VI, LP, or OrbiMed, pursuant to our relationship agreement with OrbiMed. Since 2002, Mr. Gupta has held various positions at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Partner. Prior to that, he was a healthcare investment banker at Raymond James & Associates, served as manager of corporate development at Veritas Medicine and was a summer associate at Wachtell, Lipton. Mr. Gupta currently is a member of the board of directors of Avitide, Inc., Turnstone Biologics, Inc., Attenua, Inc, EnLiven Therapeutics, Inc, and Pionyr Immunotherapeutics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016. Dr. Shah was designated for appointment to our board of directors by funds affiliated with Vivo Capital pursuant to our relationship agreement with such funds. Dr. Shah is a successful pharmaceutical entrepreneur and executive and, since March 2010, has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah serves as a member of the board of directors of Scilex Pharmaceuticals, Inc., Fortis Inc., Citrine Medicines, Inc., and several private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India.
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Dr. Sinclair was designated for appointment to our board of directors by Abingworth Bioventures VI, LP, or Abingworth, pursuant to our relationship agreement with Abingworth.Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received

a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Mr. Sinha has over 20 yearsyears’ experience working in executive finance roles in the life sciences industry. Mr. Sinha is co-founder and Chief Financial Officer of regulatory experienceElevateBio, Inc., a holding company focused on building cell and gene therapy companies. He also serves as President and Chief Financial Officer of AlloVir, Inc., an ElevateBio portfolio company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of Alexion Pharmaceuticals, Inc., a biotechnology company, where he was responsible for finance, business development, strategy, investor relations and IT. Prior to joining Alexion, Mr. Sinha held various positions with Bayer AG in the United States, Japan, Germany and Canada, including both largeVice President and small pharmaceutical companies across different regionsChief Financial Officer of Bayer Pharmaceuticals Corporation in the United States and different therapeutic areas. From 2015 to 2017,Vice President and Chief Financial Officer of Bayer Yakuhin Ltd. in Japan. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. LuthmanUllman has served as Senior Regulatorya Non-Executive Director Global Inflammation - Immunocology Therapeutic Areaon our board of directors since September 2015. From 2016 to 2018, Dr. Ullman served as Head of the COPD Centre at Sanofi.Sahlgrenska University Hospital, Sweden. From 2013 to 2015,2014, he was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 2007 to 2013, Dr. LuthmanUllman was Executive Vice President, Head of Research and Development at Nycomed Pharma Private Limited (now part of Takeda Pharmaceuticals Company Limited), where he led the development and approval of Daxas, the PDE4 inhibitor used to prevent COPD exacerbations. Earlier in his career, he held a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb.number of roles in AstraZeneca. Dr. LuthmanUllman serves on the board of directors of Pexa AB. Dr. Ullman received a doctorateM.D. and a Ph.D. in dentistryclinical pharmacology from the Karolinska Institute, Stockholm, Sweden.University of Gothenburg.
Other Senior Management
The following are brief biographies of other members of the senior management team that participate in leading ensifentrine's development.
Richard Hennings. Mr. Hennings has served as ourVice President and Commercial DirectorHead since March 2017. From May 2016 to March 2017, Mr. Hennings was the Global Marketing Director for AstraZeneca UK Limited, a biopharmaceutical company. Since July 2015, Mr. Hennings has been a director of Hennings Consulting Ltd., where he consults with healthcare organizations on commercial strategy. From January 2012 to June 2015, Mr. Hennings held various positions at Gilead Sciences, Inc., a biopharmaceutical company, most recently as Commercial Director — EMEA Planning & Operations. Mr. Hennings received a bachelor's degree in applied chemistry from the University of Portsmouth.
David Ebsworth,Desiree Luthman, DDS. Dr. Luthman has served as our Vice President, Regulatory Affairs since June 2017. From 2015 to 2017, Dr. Luthman served as Senior Regulatory Director, Global Inflammation — Immunoncology Therapeutic Area at Sanofi S.A., a multinational pharmaceutical company. From 2013 to 2015, Dr. Luthman was a Director, Global Regulatory Strategy and Science at Bristol, Meyers & Squibb Company, a pharmaceutical company. Dr. Luthman received a doctorate in dentistry from the Karolinska Institute, Stockholm, Sweden.
Tara Rheault, Ph.D. Dr. EbsworthRheault has served as our Vice President, R&D and Global Project Management since January 2019. From August 2015 to January 2019, Dr. Rheault served as Senior Director, Strategic Drug Development at IQVIA, a multinational company serving the Non-Executive Chairmancombined industries of our board of directors since December 2014. From October 2009health information technologies and clinical research, where she helped pharmaceutical companies develop integrated commercial and R&D strategies. Prior to IQVIA, from September 2002 to August 2014,2015, Dr. EbsworthRheault served in various roles at GlaxoSmithKline, most recently as Chief Executive Officer of Vifor Pharma, based in Zürich,Clinical Leader within the specialty pharma division of Galenica AG Group, a pharmaceutical wholesaler and retailer, and as a member of Galenica's Executive Committee. In 2012,respiratory therapy area. Dr. Ebsworth was also named as Chief Executive Officer of Galenica and as Chairman of Galenica's Executive Committee, positions he held until August 2014. Dr. EbsworthRheault received a Ph.D. in industrial relationsorganic chemistry from North Dakota State University and a Master in Public Health from the University of Surrey.North Carolina.
Ken Cunningham, M.D.Peter Spargo, Ph.D. Dr. CunninghamSpargo has served as a Non-Executive Director on our board of directorsSenior Vice President, Chemistry Manufacturing and Controls since September 2015.May 2014. From January to October 2015, Dr. Cunningham serves as the non-executive chairman of the board of directors of Abzena plc and of Medherant Ltd.  Dr. Cunningham received a degree in medicine from St. Mary’s, Imperial College, London University.
Rishi Gupta. Mr. Gupta hasSpargo served as a Non-Executive Director on our board of directors since July 2016.  Since 2002, Mr. Gupta has held various positionsSenior Vice President, CMC at OrbiMed Advisors LLC, a global healthcare investment firm, where he is currently a Private Equity Partner. Mr. Gupta currently is a member of the board of directors of Avitide, Inc. and Turnstone Biologics, Inc. Mr. Gupta received an A.B. in biochemical sciences from Harvard College and a J.D. from the Yale Law School.
Mahendra Shah, Ph.D. Dr. Shah has served as a Non-Executive Director on our board of directors since July 2016.  Since March 2010, Dr. Shah has served as a Managing Director of Vivo Capital, a healthcare investment firm. Dr. Shah is also the founder and Executive Chair of Semnur Pharmaceuticals, Inc., a specialty pharmaceutical company. Dr. Shah serves as a member of the board of directors of Fortis Inc., a specialty pharmaceuticals company, Crinetics Pharmaceuticals, Inc., Soleno Therapeutics, Inc., Impel Neuropharma, Inc., and several other private companies in the biopharmaceutical and biotechnology industries. Dr. Shah received his Ph.D. in industrial pharmacy from St. John’s University and a Master’s Degree in Pharmacy from L.M. College of Pharmacy in Gujarat, India
Andrew Sinclair, Ph.D. Dr. Sinclair has served as a Non-Executive Director on our board of directors since July 2016. Since 2008, Dr. Sinclair has held various positions at Abingworth LLP, a life sciences investment group, where he is currently a Partner and Portfolio Manager. Dr. Sinclair is a member of the Institute of Chartered Accountants in England and Wales and received a Ph.D. in chemistry and genetic engineering at the BBSRC Institute of Plant Science, Norwich, and a B.Sc. in microbiology from King's College London.
Vikas Sinha. Mr. Sinha has served as a Non-Executive Director on our board of directors since September 2016. Since January 2018, Mr. Sinha has served as an Executive Partner of MPM Capital, Inc., a life sciences investment company. From 2005 to 2016, Mr. Sinha was the Chief Financial Officer of AlexionSpinifex Pharmaceuticals Inc., a biotechnology company. Mr. Sinha holds a master's degree in business administration from the Asian Institute of Management. He is also a qualified Chartered Accountant from the Institute of Chartered Accountants of India and a Certified Public Accountant in the United States.
Anders Ullman, M.D., Ph.D. Dr. Ullman has served as a Non-Executive Director on our board of directors since September 2015. Since 2016, he has served as Head of the COPD Centre at Sahlgrenska University Hospital,

Sweden.company, that was acquired by Novartis International AG. From 2013 to 2014, Dr. Ullman was Executive Vice President and Head of Research and Development in the BioScience business unit of Baxter International Inc., a healthcare company, which became Baxalta Inc. From 20072011 to 2013, Dr. UllmanSpargo was ExecutiveSenior Vice President, Head of Research and DevelopmentCMC at Nycomed Pharma Private Limited, which was acquired by Takeda Pharmaceutical Company Limited.Creabilis SA, a pharmaceutical company. Dr. UllmanSpargo received a M.D.an M.A. in natural sciences and a Ph.D. in clinical pharmacologysynthetic organic chemistry from the University of Gothenburg.Cambridge University.
Family Relationships
There are no family relationships among any of the members of our board of directors and executive officers.

B. Compensation
Executive Officer Remuneration
The following table sets forth the approximate remuneration paid during the year ended December 31, 20172019, to our current executive officers.officers, who are the members of our administrative, supervisory, and management bodies.
Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation
(£)
 
Total
(£)
Jan-Anders Karlsson, Ph.D.290,000
 254,000
 1,632,055
 29,165
(3) 
 2,205,220
Chief Executive Officer         
Piers Morgan(4)
210,000
 73,500
 945,464
 12,600
(3) 
 1,241,564
Chief Financial Officer         
Kenneth Newman, M.D. 273,221
 53,581
 937,718
 21,987
(4) 
 1,286,508
Chief Medical Officer         
Peter Spargo, Ph.D. 190,000
 46,550
 641,564
 
  878,114
Senior Vice President of Chemistry, Manufacturing and Controls         
Claire Poll170,000
 59,650
 574,033
 4,517
(3) 
 808,200
Legal Counsel         
Richard Hennings119,231
 36,200
 198,258
 7,154
(3) 
 360,843
Commercial Director         
Desiree Luthman(5)
113,743
 22,884
 126,756
 
  263,383
Vice President, Regulatory Affairs         
Total1,366,195
 546,365
 5,055,849
 75,422
  7,043,832


Name and Principal Position
Salary
(£)
 
Bonus(1)
(£)
 
Option Awards(2)
(£)
 
All Other Compensation(3)
(£)
 
Total
(£)
David Zaccardelli
 
 
 
 
President and Chief Executive Officer (4)
         
Piers Morgan243,000
 59,535
 179,413
 14,580
 496,528
Chief Financial Officer         
Kathleen Rickard272,901
 263,227
 265,132
 5,307
 806,567
Chief Medical Officer         
Claire Poll214,000
 67,410
 128,151
 6,420
 415,981
General Counsel         
Total729,901
 390,172
 572,696
 26,307
 1,719,076
(1) 
Amount shown reflectsreflect bonuses awarded for achievement of performance goals, including retention bonuses in 2017.2019. 
(2) 
Amount shown represents the aggregate grant date fair value of option and restricted stockshare units awards granted in 20172019 measured using the Black Scholes model. For a description of the assumptions used in valuing these awards, see note 16 to our Annual Consolidated Financial Statements included elsewhere in this prospectus.Annual Report. 
(3) 
Amount shown represents health benefits payments and pension contributions made by us.
(4) 
Amount shown represents health benefits payments made by us. Dr. Zaccardelli was appointed as our President and Chief Executive Officer, effective as of February 1, 2020.
(5)

Mrs Luthman began her employment with us on June 12, 2017.
Executive Officer Employment Agreements
Jan-Anders Karlsson, Ph.D.David S. Zaccardelli, Pharm.D.
We entered into an employment agreement with Dr. KarlssonZaccardelli on April 30, 2012, which was subsequently amended.February 1, 2020. This agreement as amended, entitles Dr. KarlssonZaccardelli to receive an annual base salary of £290,000$750,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Annual RSUs, and a target annual bonus opportunity of 66%50% of his annual base salary. The Annual RSUs vest in equal quarterly installments during the calendar year in which the grant occurs, subject to continued employment. Pursuant to his employment agreement, Dr. Zaccardelli is also entitled to receive (i) an award of restricted stock units, subject to approval at our annual general meeting of shareholders in 2020, equal to 4% of our outstanding ordinary shares and (ii) an additional award of restricted units if the Company raises additional equity capital during fiscal year 2020, which is intended to result in Dr. Zaccardelli’s equity awards (other than the portion of his base salary (potentially extendingpayable in restricted stock units) being equal to up4% of our outstanding ordinary shares on the applicable date of issuance. These awards of restricted stock units will vest as to 132%)25% on the first anniversary of Dr. Zaccardelli’s employment commencement date and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment.
If Dr. Zaccardelli’s employment is terminated by us without "Cause" or by Dr. Zaccardelli for "Good Reason" (as each such term is defined in his offer agreement), withthen, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) 18 months (or 12 months if the amounttermination occurs after the second anniversary of any such bonus based on annual performance criteria to be agreed between usMr. Zaccardelli’s employment commencement date) of base salary continuation and Dr. Karlsson. By June 1, 2017, Dr. Karlsson was required to investcontinued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to £130,000 in our company through150% (or 100% if the purchasetermination occurs after the second anniversary of our ordinary shares. Dr. Karlsson is also entitled to participate in

a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate theZaccardelli’s employment agreement by giving the other party not less than 12 months' written notice, provided that we may terminatecommencement date) of Dr. Karlsson at any time with immediate effect for cause or by giving written notice to Dr. Karlsson that we shall pay, in lieu of notice, his basic salary during the 12 months following termination, a pro-ratedZaccardelli’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Karlsson is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares)unused paid time-off, and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. See "— Equity Compensation Arrangements" below. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Dr. Zaccardelli’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Dr. Zaccardelli’s employment commencement date.
If payments to Dr. KarlssonZaccardelli would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by

Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Karlsson'sZaccardelli’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Dr. Karlsson is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Dr. Karlsson's employment agreementZaccardelli has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Kenneth Newman,Jan-Anders Karlsson, Ph.D.
We and Dr. Karlsson entered into a separation agreement, or the Karlsson Separation Agreement, pursuant to which we and Dr. Karlsson agreed that he would no longer serve as chief executive officer, director or officer, effective as of February 2, 2020, and that his employment with us will terminate effective as of February 28, 2020, or the Separation Date. Dr. Karlsson agreed to help transition his duties to Dr. Zaccardelli. Pursuant to the Karlsson Separation Agreement, Dr. Karlsson agreed to execute a general release of claims, or the Karlsson Settlement Agreement, and he is entitled to receive cash severance payments in the aggregate amount of £982,160, payments for continued medical and life insurance benefits until the first anniversary of the Separation Date and continued pension contributions until the first anniversary of the Separation Date, subject to his compliance with the terms of the Karlsson Separation Agreement, the Karlsson Settlement Agreement and his employment agreement. Additionally, equity awards will either be vested as of the Separation Date, will be forfeited as of the Separation Date, or will be unvested as of the Separation Date and will either vest according to the applicable vesting schedule, or will be forfeited as of February 28, 2021, unless an earlier change in control event occurs, Dr. Karlsson dies or we breach the terms of the Karlsson Separation Agreement or the Karlsson Settlement Agreement.
Kathleen Rickard, M.D.
We entered into an offer letter with Dr. NewmanRickard on December 15, 2014, which was subsequently amended,13, 2018, pursuant to which heshe agreed to serve as our Chief Medical Officer, effective JanuaryFebruary 1, 2015.2019. This agreement entitles Dr. NewmanRickard to receive an annual base salary of $340,000$390,000 and a target annual bonus opportunity of 40% of hisher annual base salary, with the amount of any such bonus based on performance criteria for our company and hisher individual performance, as determined by the board of directors in its sole discretion. Dr. Newman'sRickard was also entitled to receive a sign-on bonus of $50,000, payable on the date of the offer letter, and is entitled to receive a retention bonus of $250,000, with $125,000 payable on April 1, 2019 and $125,000 payable on April 1, 2020, subject to Dr. Rickard being employed at the applicable date of payment and with the condition that each retention bonus payment is repayable if she resigns or is terminated for "Cause" within 12 months of payment. Subject to the approval of our board of directors and our share dealing policy, Dr. Rickard's offer letter also entitled himher to receive a stock option to purchase 250,00070,000 of our ordinary shares at an exercise priceADSs and to be issued 15,000 restricted stock units with respect to ADSs under the terms of £1.25 per ordinary share,the Company's equity incentive plan, half of which vests in full uponequal proportions on the earlier of (a) thefirst, second and third anniversary of the grant date or (b)and half in equal proportions on the first, second, third and fourth anniversary of the grant date, subject to accelerated vesting upon a change in control. The exercise price of control.the stock option to purchase ADSs will be determined according to the terms of the Company's equity incentive plan at the date of grant. The offer letter with Dr. NewmanRickard also provides that for so long as Dr. Newmanshe is eligible for medical continuation coverage under the Consolidated Omnibus Budget Reconciliation Act, or COBRA, from his previous employer or until we establish a health insurance plan in which he is eligibleentitled to participate Dr. Newman will receive reimbursement for monthly premiums paid for such medical continuation coveragein the Company's 401(k) plan and reimbursement for any premiums he pays for private long-term disability insurance (uphealthcare plans generally available from time to $800 per month).time to employees of the Company based in the U.S.
If Dr. Newman'sRickard's employment is terminated by us without "Cause" or by Dr. NewmanRickard for "Good Reason" (as each such term is defined in hisher offer agreement), then, subject to hisher signing and not revoking a general release of claims, heshe is entitled to receive (i) six monthsfour weeks of base salary continuation, (ii) six monthsfour weeks of continued payment of premiums for continued medical coverage under COBRA, (iii) a pro-rated portion of the annual bonus that heshe otherwise would have earned in the year of termination based on actual performance in such year and (iv) if the date of termination occurs within the six-month period immediately preceding the third anniversary of the date of grant of the stock option to purchase 250,000 of our ordinary shares, such stock option will vest in full. The offer agreement also provides that, if Dr. Newman's employment is terminated by us without Cause or by Dr. Newman for Good Reason, in either case within 12 months following a change of control, then, subject to his signing and not revoking a general release of claims, he is entitled to receive (i) nine months of base salary continuation, (ii) nine months of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that he would otherwise have earned in the year of termination based on actual performance in such year. If payments to Dr. Newman would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Newman's receipt, on an after-tax basis, of the greater amount of the payment.
Piers Morgan
We entered into an employment agreement with Mr. Morgan on September 24, 2016, which was subsequently amended, pursuant to which he agreed to serve as our Chief Financial Officer, effective September 26, 2016. This agreement entitles Mr. Morgan to receive an annual base salary of £210,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% (potentially extending to up to 50%) of his salary, with the

amount of any such bonus based on performance criteria for our company and his individual performance, as determined by our board of directors in its sole discretion. Within 12 months after receiving any such bonus payment, Mr. Morgan is expected to invest an amount equal to 25% of the bonus (net of income tax paid by Mr. Morgan) in our company through the purchase of our ordinary shares.shares until he has invested an amount equal to £200,000. Pursuant to this agreement, on September 16, 2016, Mr. Morgan received an option to purchase 300,000 of our ordinary shares with an exercise price of £2.04 per ordinary share, which vests in equal proportions on the first, second and third anniversary of the grant date of September 26, 2016. Mr. Morgan is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.

Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Mr. Morgan at any time with immediate effect for cause or by giving written notice to Mr. Morgan that we shall pay, in lieu of notice, his basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Mr. Morgan is entitled to receive his full discretionary bonus (without an obligation to purchase ordinary shares) and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Mr. Morgan would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Morgan's receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of U.S. and U.K. income tax rates, Mr. Morgan is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to U.K. taxes during the period of his employment with us. Mr. Morgan's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Peter Spargo, Ph.D.
We and Mr. Morgan entered into an employmenta separation agreement, with Dr. Spargo on April 1, 2014, which was subsequently amended. Pursuant to this agreement, Dr. Spargo agreed to serve as our Senior Vice President, Chemistry Manufacturing and Controls, effective April 1, 2014. This agreement, as amended, entitles Dr. Spargo to receive an annual base salary of £190,000 and a target annual bonus opportunity of up to 35% of his annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed between us and Dr. Spargo. Dr. Spargo is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Dr. Spargo at any time with immediate effect for cause or by giving written notice to Dr. Spargo that we shall pay, in lieu of notice, his basic salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Dr. Spargo is entitled to receive his full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Dr. Spargo would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Dr. Spargo's receipt, on an after-tax basis, of the greater amount of the payment. Dr. Spargo's employment agreement also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following his termination of employment.
Claire Poll
We entered into an agreement for consulting services with Ms. Poll on March 28, 2007, or the Poll ConsultingMorgan Settlement Agreement, pursuant to which Ms. Poll provided corporate managerial services to us. We also entered into an agreement for director serviceswe and Mr. Morgan agreed that his employment with Ms. Poll on Marchus will terminate effective as of February 28, 2007 pursuant to which Ms. Poll served on our board of directors2020, or the Poll Director Services Agreement.Separation Date. The Morgan Settlement Agreement contains a general release of claims in our favour. Pursuant to a letter agreement that we entered intothe Morgan Settlement Agreement, Mr. Morgan is entitled to cash severance payments in the aggregate amount of £276,550, payments for continued life insurance benefits for six months following the Separation Date and continued pension contributions for six months following the Separation Date, subject to his compliance with Ms. Poll on September 21, 2015, Ms. Poll retired from our boardthe terms of directors and the Poll Director Services Agreement was terminated, effective September 10, 2015. The letter agreement further provided that an annual aggregate

remuneration of £70,000 payable under both the Poll ConsultingMorgan Settlement Agreement and Poll Director Services Agreement wouldhis employment agreement. Additionally, equity awards will either be paid undervested as of the Separation Date, or will be forfeited as of the Separation Date.
Claire Poll Consulting Agreement.
We entered into an employment agreement with Ms. Poll on October 1, 2016 pursuant to which Ms. Poll agreed to serve as our LegalGeneral Counsel, effective September 1, 2016. This agreement, as amended, entitles Ms. Poll to receive an annual base salary of £170,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of 35% of her annual base salary, with the amount of any such bonus based primarily on annual performance criteria to be agreed to between us and Ms. Poll. Pursuant to this agreement, on September 13, 2016, Ms. Poll received an option to purchase a total of 200,000 of our ordinary shares with an exercise price of £1.89 per ordinary share, which vests in equal proportions on the first three anniversaries of the date of grant. Ms. Poll is also entitled to participate in a workplace pension scheme that we contribute to on her behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice, provided that we may terminate Ms. Poll at any time with immediate effect for cause or by giving written notice to Ms. Poll that we shall pay, in lieu of notice, her basicbase salary during the six months following termination, a pro-rated full discretionary bonus and any other contractual benefits prevailing at the time when such notice is given. The employment agreement provides that, upon a change of control, Ms. Poll is entitled to receive her full discretionary bonus and full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. If payments to Ms. Poll would constitute a "parachute payment" within the meaning of Section 280G of the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Ms. Poll's receipt, on an after-tax basis, of the greater amount of the payment. Ms. Poll's employment agreement also contains restrictive covenants pursuant to which she has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six months following her termination of employment.
Richard HenningsMark W. Hahn
We entered into an employment agreement with Mr. HenningsMark Hahn on March 27, 2017,February 1, 2020 pursuant to which he agreed to commence employment with us on February 1, 2020 and serve as our Commercial Director,Chief Financial Officer, effective March 27, 2017.1, 2020. This agreement entitles Mr. HenningsHahn to receive an annual base salary of £155,000,$500,000, which is payable in part in cash and in part in restricted stock units, or such higher rate as may be agreed in writing,the Hahn Annual RSUs, and a target annual bonus opportunity of up to 35%50% of his annual base salary, withsalary. The Hahn Annual RSUs vest in equal quarterly installments during the amount of any such bonus based on annual performance criteriacalendar year in which the grant occurs, subject to be agreed between us and Mr. Hennings.continued employment. Pursuant to his employment agreement, and subject to approval at our annual general meeting of shareholders in 2020, Mr. HenningsHahn is also entitled to receive (a)(i) an optionaward of restricted stock units equal to purchase a total of 160,0003% of our outstanding ordinary shares, withor the First RSU Award, and (ii) an exercise priceadditional award of restricted stock units during or prior to our first open trading window following the date

that is six months after his employment commencement date, or the Reference Date, equal to 1% of our Nasdaq listing priceoutstanding ordinary shares, or the Second RSU Award. The First RSU Award and the Second RSU Award will vest as to 25% on the first anniversary of Mr. Hahn’s employment commencement date or the Reference Date, respectively, and as to the remainder in quarterly installments thereafter over the following three years, subject to continued employment. In the event that the Company raises additional equity capital during fiscal year 2020, which is intended to result in Mr. Hahn’s equity awards (other than the portion of his base salary payable in restricted stock units) being equal to 4% of our outstanding ordinary shares on the applicable date of grant (£1.32)issuance. These awards of restricted stock units will vest as to 75% of the award, on the same vesting schedule as the First RSU Award, and (b) restricted share units withas to 25% of the award, on the same vesting schedule as the Second RSU Award, subject to continued employment.
If Mr. Hahn’s employment is terminated by us without "Cause" or by Mr. Hahn for "Good Reason" (as each such term is defined in his offer agreement), then, subject to his signing and not revoking a grant date fair valuegeneral release of approximately £40,000. Mr. Hennings is also entitled to participate in a workplace pension scheme that we contribute to on his behalf. See "— Pension, Retirement or Similar Benefits" below.
Either party may terminate the employment agreement by giving the other party not less than six months' written notice. The employment agreement provides that, upon a change of control, Mr. Henningsclaims, he is entitled to receive his(i) 18 months (or 12 months if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of base salary continuation and continued payment of premiums for continued medical coverage under COBRA, (ii) an amount equal to 150% (or 100% if the termination occurs after the second anniversary of Mr. Hahn’s employment commencement date) of Mr. Hahn’s full annual discretionary bonus, calculated as though all applicable objectives have been achieved for the year of termination, (iii) payment of all accrued and unused paid time-off and (iv) full accelerated vesting of any outstanding, unvested equity awards under our share and share option schemes. schemes (with any performance-vesting awards become vested based on target level attainment), provided that if such termination occurs prior to the first anniversary of Mr. Hahn’s employment commencement date, the awards will become vested as to the portion that would have otherwise vested on or prior to the first anniversary of Mr. Hahn’s employment commencement date.
If payments to Mr. HenningsHahn would constitute a "parachute payment" within the meaning of Section 280G of the Internal Revenue Code of 1986, as amended, or the Code, and would be subject to the excise tax imposed by Section 4999 of the Code, then such payment would be reduced to either (i) the largest portion of the payment that would result in no portion of the payment being subject to the excise tax or (ii) the largest portion of the payment, whichever of (i) or (ii) would result in Mr. Hennings'Hahn’s receipt, on an after-tax basis, of the greater amount of the payment. Additionally, in order to minimize the effect of the different rates of US and UK income tax rates, Mr. Hennings is entitled to receive a payment from us to leave him in a net after-tax position substantially equivalent to what he would experience if he were only subject to UK taxes during the period of his employment with us. Mr. Hennings' employment agreementHahn has also contains restrictive covenants pursuant to which he has agreed to refrain from competing with us or soliciting our customers or prospective customers for a period of six monthsone year following his termination of employment.
Desiree Luthman, DDS.
We entered into an employment agreement with Ms Luthman on May 1, 2017, pursuant to which she agreed to serve as our Vice-President Regulatory Affairs, effective June 15, 2017. This agreement entitles Ms Luthman to receive an annual base salary of $265,000, or such higher rate as may be agreed in writing, and a target annual bonus opportunity of up to 25% of her annual base salary, with the amount of any such bonus based on annual performance criteria to be agreed between us and Ms Luthman. Pursuant to her employment agreement, Ms Luthman is also entitled to receive an option to purchase a total of 20,000 of our ADSs under the terms of the

Company's equity incentive plan. The ADSs relate to 160,000 ordinary shares and the exercise price is £1.32 per ordinary share.
If Ms Luthman's employment is terminated by us without "Cause" or by Ms Luthman for "Good Reason" (as each such term is defined in her offer agreement), then, subject to her signing and not revoking a general release of claims, she is entitled to receive (i) eight weeks of base salary continuation, (ii) eight weeks of continued payment of premiums for continued medical coverage under COBRA, and (iii) a pro-rated portion of the annual bonus that she otherwise would have earned in the year of termination based on actual performance in such year.
Equity Compensation Arrangements
In May 2017, we closed the initial public offering of our American Depositary Shares in the United States and a private placement of our ordinary shares in Europe, together the global offering. Prior to the global offering, we issued option grants under two option schemes, the Unapproved Share Option Scheme, or the Unapproved Scheme, adopted by our board of directors on September 18, 2006, and the EMI Option Scheme, or the EMI Scheme, adopted by our board of directors on July 24, 2012. Discussions in this section regarding the Unapproved Scheme or the EMI Scheme that refer to our board of directors include any designated committee of our board of directors. Since the adoption of the 2017 Incentive Award Plan, (as defined below),or the 2017 Incentive Plan, no further awards are being made under either the Unapproved Scheme or the EMI Scheme.
EMI Option Scheme
Under the EMI Scheme, eligible employees were granted tax‑efficient options to purchase our ordinary shares. Options were granted to eligible employees who were contracted to work for us or a qualifying subsidiary for at least 25 hours a week, or, if less than 25 hours a week, for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price and in accordance with a vesting schedule determined by our board of directors at the time of grant and expire 10 years from the date of grant.
Unapproved Share Option Scheme
Under the Unapproved Scheme, we granted non‑tax‑qualifying options to purchase our ordinary shares. Options were granted to employees, directors or consultants to acquire our ordinary shares at a price determined by our board of directors. In general, the options granted under the Unapproved Scheme are exercisable at a price and in accordance with the vesting period determined by our board of directors at the date of grant and expire 10 years from the date of grant.

Certain Transactions
Under the EMI Scheme and the Unapproved Scheme, if certain changes are made in, or events occur with respect to, our ordinary shares (including any capitalization, sub-division, reduction or other variation of our ordinary shares), any outstanding awards may be adjusted in terms of the number of ordinary shares subject to an option and the exercise price as our board of directors may determine appropriate on a fair and reasonable basis. In the event of certain corporate transactions, including a change of control, scheme of arrangement, merger, demerger or liquidation, the vesting and exercisability of all options will accelerate and, to the extent not exercised, will lapse within certain time periods defined in the applicable plan rules.
Amendment and Termination
Our board of directors may at any time amend the rules of the EMI Scheme or the Unapproved Scheme in any manner, except that no amendment may be made if, in the reasonable opinion of our board of directors, it would materially abrogate or adversely affect the subsisting rights of an option holder regarding existing options, unless the amendment is made either (i) with the written consent of the number of option holders that hold options to acquire 50% of the ordinary shares that would be delivered if all options granted and subsisting under the scheme, as applicable, were exercised; or (ii) by a resolution at a meeting of option holders passed by not less than 50% of the option holders holding options under the scheme, as applicable, who attend and vote either in person or by proxy. The EMI Scheme and the Unapproved Scheme are discretionary and may be suspended or terminated by us at any time. Suspension or termination will not affect any options granted under the schemes to the extent that they are subsisting at the date of the suspension or termination.


The following table summarizes the options that we granted to our directors and executive officers under the EMI Scheme and Unapproved Scheme in 2016:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 100,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 3.30
 February 9, 2016
 February 9, 2026
 500,000
 1.80
 August 3, 2016
 August 3, 2026
Piers Morgan300,000
 2.04
 September 26, 2016
 September 26, 2026
Kenneth Newman, M.D. 60,000
 2.00
 February 9, 2016
 February 9, 2026
 200,000
 1.80
 August 3, 2016
 August 3, 2026
Peter Spargo, Ph.D. 20,000
 2.00
 February 9, 2016
 February 9, 2026
 100,000
 1.80
 August 3, 2016
 August 3, 2026
Claire Poll200,000
 1.89
 September 13, 2016
 September 13, 2026
Richard Hennings
 
 
 
Patrick Humphrey
 
 
 
David Ebsworth
 
 
 
Anders Ullman
 
 
 
Ken Cunningham
 
 
 
Rishi Gupta
 
 
 
Mahendra Shah
 
 
 
Vikas Sinha
 
 
 
Andrew Sinclair
 
 
 
2017 Incentive Plan
We have adoptedUnder the 2017 Incentive Plan, under which we may grant cash and equity‑based incentive awards to eligible service providers in order to attract, retain and motivate the persons who make important contributions to us. The material terms of the 2017 Incentive Plan are summarized below. Except where the context indicates otherwise, references hereunder to our ordinary shares shall be deemed to include a number of ADSs equal to an ordinary share.
Eligibility and Administration
Our employees, consultants and directors, and employees and consultants of our subsidiaries, are eligible to receive awards under the 2017 Incentive Plan. The 2017 Incentive Plan is administered by our board of directors, which may delegate its duties and responsibilities to one or more committees of our board of directors and/or officers (referred to collectively as the plan administrator below), subject to the limitations imposed under the 2017 Incentive Plan, stock exchange rules and other applicable laws. The plan administrator has the authority to take all actions and make all determinations under the 2017 Incentive Plan, to interpret the 2017 Incentive Plan and award agreements and to adopt, amend and repeal rules for the administration of the 2017 Incentive Plan as it deems advisable. The plan administrator also has the authority to determine which eligible service providers receive awards, grant awards, set the terms and conditions of all awards under the 2017 Incentive Plan, including any vesting and vesting acceleration provisions, and designate whether such awards will cover our ordinary shares or ADSs, subject to the conditions and limitations in the 2017 Incentive Plan.
Sub-Plan
The 2017 Incentive Plan authorizedauthorizes the administrator to establish one or more sub-plans. Immediately after the 2017 Incentive Plan had beenwas established, the administrator established a sub-plan. The sub-plan incorporated all of the terms of the 2017 Incentive Plan, except that only employees of ours (or our subsidiaries) were eligible to receive awards under the sub-plan. Awards under the sub-plan counted towards the total number of shares available for issuance under the 2017 Incentive Plan. The sub-plan is an "employees' share scheme" for the purposes of the UK Companies Act 2006.

Shares Available for Awards
An aggregate of 6,333,000 of our ordinary shares were initially made available for issuance under the 2017 Incentive Plan. The number of shares initially available for issuance will be increased by an annual increase on January 1 of each calendar year beginning in 2018 and ending in and including 2027 equal to the least of (A) 4% of our ordinary shares outstanding on the final day of the immediately preceding calendar year and (B) a smaller number of shares determined by our board of directors. As of January 1, 2020, the number of shares available for issuance was 5,499,058. Pursuant to the terms of the 2017 Incentive Plan, awards may be issued under the 2017 Incentive Plan covering ADSs in lieu of the number of our ordinary shares that such ADSs represent. No more than 5,000,000 shares may be issued under the 2017 Incentive Plan upon the exercise of incentive options. Shares issued under the 2017 Incentive Plan may be authorized but unissued shares, shares purchased on the open market, treasury shares or ADSs.

If an award under the 2017 Incentive Plan, the EMI Option Scheme, the Unapproved Share Option Scheme or any prior equity incentive plan, expires, lapses or is terminated, exchanged for cash, surrendered, repurchased, canceled without having been fully exercised or forfeited, any unused shares subject to the award will, as applicable, become or again be available for new grants under the 2017 Incentive Plan. Awards granted under the 2017 Incentive Plan in substitution for any options or other equity or equity-based awards granted by an entity before the entity's merger or consolidation with us or our acquisition of the entity's property or stock will not reduce the shares available for grant under the 2017 Incentive Plan, but will count against the maximum number of shares that may be issued upon the exercise of incentive options.
Awards
The 2017 Incentive Plan provides for the grant of options, share appreciation rights, or SARs, restricted shares, dividend equivalents, restricted share units, or RSUs, and other share or cash based awards. All awards under the 2017 Incentive Plan will be set forth in award agreements, which will detail the terms and conditions of awards, including any applicable vesting and payment terms and post-termination exercise limitations. A brief description of each award type follows.
Options and SARs.    Options provide for the purchase of our ordinary shares in the future at an exercise price set on the grant date. SARs entitle their holder, upon exercise, to receive from us an amount equal to the appreciation of the shares subject to the award between the grant date and the exercise date. The plan administrator will determine the number of shares covered by each option and SAR, the exercise price of each option and SAR and the conditions and limitations applicable to the exercise of each option and SAR.
Restricted Shares and Restricted Share Units.    Restricted shares are an award of nontransferable ordinary shares that remain forfeitable unless and until specified conditions are met and which may be subject to a purchase price. RSUs are contractual promises to deliver our ordinary shares in the future, which may also remain forfeitable unless and until specified conditions are met and may be accompanied by the right to receive the equivalent value of dividends paid on our ordinary shares prior to the delivery of the underlying shares. The plan administrator may provide that the delivery of the shares underlying RSUs will be deferred on a mandatory basis or at the election of the participant. The terms and conditions applicable to restricted shares and RSUs will be determined by the plan administrator, subject to the conditions and limitations contained in the 2017 Incentive Plan.
Other Share or Cash Based Awards.    Other share or cash based awards are awards of cash, fully-vested our ordinary shares and other awards valued wholly or partially by referring to, or otherwise based on, our ordinary shares or other property. Other share or cash based awards may be granted to participants and may also be available as a payment form in the settlement of other awards, as standalone payments and as payment in lieu of compensation to which a participant is otherwise entitled. The plan administrator will determine the terms and conditions of other share or cash based awards, which may include any purchase price, performance goal, transfer restrictions and vesting conditions.
Performance Criteria
The plan administrator may select performance criteria for an award to establish performance goals for a performance period. Performance criteria under the 2017 Incentive Plan may include, but are not limited to, the following: net earnings or losses (either before or after one or more of interest, taxes, depreciation, amortization, and non-cash equity-based compensation expense); gross or net sales or revenue or sales or revenue growth; net income (either before or after taxes) or adjusted net income; profits (including but not limited to gross profits, net profits, profit growth, net operation profit or economic profit), profit return ratios or operating margin; budget or operating earnings (either before or after taxes or before or after allocation of corporate overhead and bonus); cash flow (including operating cash flow and free cash flow or cash flow return on capital); return on assets; return on

capital or invested capital; cost of capital; return on shareholders' equity; total shareholder return; return on sales; costs, reductions in costs and cost control measures; expenses; working capital; earnings or loss per share; adjusted earnings or loss per share; price per share or dividends per share (or appreciation in or maintenance of such price or dividends); regulatory achievements or compliance; implementation, completion or attainment of objectives relating to research, development, regulatory, commercial, or strategic milestones or developments; market share; economic value or economic value added models; division, group or corporate financial goals; customer satisfaction/growth; customer service; employee satisfaction; recruitment and maintenance of personnel; human resources management; supervision of litigation and other legal matters; strategic partnerships and transactions; financial ratios (including those measuring liquidity, activity, profitability or leverage); debt levels or reductions; sales-related goals; financing and other capital raising transactions; cash on hand; acquisition activity; investment sourcing activity; and marketing initiatives, any of which may be measured in absolute terms or as compared to any incremental increase or decrease. Such performance goals also may be based solely by reference to the company's performance or the performance of a subsidiary, division, business segment or business unit of the company or a subsidiary, or based upon performance relative

to performance of other companies or upon comparisons of any of the indicators of performance relative to performance of other companies. When determining performance goals, the plan administrator may provide for exclusion of the impact of an event or occurrence which the plan administrator determines should appropriately be excluded, including, without limitation, non-recurring charges or events, acquisitions or divestitures, changes in the corporate or capital structure, events unrelated to the business or outside of the control of management, foreign exchange considerations, and legal, regulatory, tax or accounting changes.
Certain Transactions
In connection with certain corporate transactions and events affecting our ordinary shares, including a change in control, another similar corporate transaction or event, another unusual or nonrecurring transaction or event affecting us or its financial statements or change in any applicable laws or accounting principles, the plan administrator has broad discretion to take action under the 2017 Incentive Plan to prevent the dilution or enlargement of intended benefits, facilitate the transaction or event or give effect to the change in applicable laws or accounting principles. This includes canceling awards for cash or property, accelerating the vesting of awards, providing for the assumption or substitution of awards by a successor entity, adjusting the number and type of shares subject to outstanding awards and/or with respect to which awards may be granted under the 2017 Incentive Plan and replacing or terminating awards under the 2017 Incentive Plan. In addition, in the event of certain non-reciprocal transactions with our shareholders, the plan administrator will make equitable adjustments to the 2017 Incentive Plan and outstanding awards as it deems appropriate to reflect the transaction. Pursuant to the terms of their individual employment agreements, awards granted under the 2017 Incentive Plan to certain of our executives may become fully vested and exercisable upon a change in control.
Plan Amendment and Termination
Our board of directors may amend or terminate the 2017 Incentive Plan at any time; however, no amendment, other than an amendment that increases the number of shares available under the 2017 Incentive Plan, may materially and adversely affect an award outstanding under the 2017 Incentive Plan without the consent of the affected participant and shareholder approval will be obtained for any amendment to the extent necessary to comply with applicable laws. Further, the plan administrator cannot, without the approval of our shareholders, amend any outstanding option or SAR to reduce its price per share or cancel any outstanding option or SAR in exchange for cash or another award under the 2017 Incentive Plan with an exercise price per share that is less than the exercise price per share of the original option or SAR. The 2017 Incentive Plan will remain in effect until the tenth anniversary of its effective date unless earlier terminated by our board of directors. No awards may be granted under the 2017 Incentive Plan after its termination.
Non-U.S. Participants, Claw-Back Provisions, Transferability and Participant Payments
The plan administrator may modify awards granted to participants who are non-U.S. nationals or employed outside the United States or establish sub-plans or procedures to address differences in laws, rules, regulations or customs of such foreign jurisdictions. All awards will be subject to any company claw-back policy as set forth in such claw-back policy or the applicable award agreement. Except as the plan administrator may determine or provide in an award agreement, awards under the 2017 Incentive Plan are generally non-transferrable, except by will or the laws of descent and distribution, or, subject to the plan administrator's consent, pursuant to a domestic relations order, and are generally exercisable only by the participant. With regard to tax withholding obligations arising in connection with awards under the 2017 Incentive Plan, and exercise price obligations arising in connection with the exercise of options under the 2017 Incentive Plan, the plan administrator may, in its discretion, accept cash, wire

transfer or cheque,check, our ordinary shares that meet specified conditions, a promissory note, a "market sell order," such other consideration as the plan administrator deems suitable or any combination of the foregoing.
2017
2019 Grants
The following table summarizes the options that we granted to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Ordinary
Shares
Underlying
Options
 
Exercise
Price
Per Share
(£)
 
Grant
Date
 
Expiration
Date
Jan-Anders Karlsson, Ph.D., M.D. 1,385,598
 1.32
 April 26, 2017 April 26, 2027
Piers Morgan802,690
 1.32
 April 26, 2017 April 26, 2027
Kenneth Newman, M.D. 796,128
 1.32
 April 26, 2017 April 26, 2027
Peter Spargo, Ph.D. 544,681
 1.32
 April 26, 2017 April 26, 2027
Claire Poll487,347
 1.32
 April 26, 2017 April 26, 2027
Richard Hennings160,000
 1.32
 April 26, 2017 April 26, 2027
Desiree Luthman160,000
 1.32
 April 26, 2017 April 26, 2027
Vikas Sinha120,384
 1.32
 April 26, 2017 April 26, 2027
David Ebsworth
 
  
Anders Ullman
 
  
Ken Cunningham
 
  
Rishi Gupta
 
  
Mahendra Shah
 
  
Andrew Sinclair
 
  
NameOrdinary Shares Underlying Options
 
Exercise
Price
Per Share (£)

 
Grant
Date
 
Expiration
Date
        
Kathleen Rickard560,000
 0.57
 April 01, 2019 March 29, 2029
Piers Morgan359,430
 0.57
 April 01, 2019 March 29, 2029
Claire Poll256,735
 0.57
 April 01, 2019 March 29, 2029

The following table summarizes the RSUs that we granted on April 1, 2019, to our directors and executive officers under the 2017 Incentive Plan in 2017:2019:
Name
Restricted
Share Units Granted

Jan-Anders Karlsson, Ph.D., M.D. Kathleen Rickard346,395120,000
Piers Morgan200,669
Kenneth Newman, M.D. 199,016
Peter Spargo, Ph.D. 136,16893,247
Claire Poll121,835
Richard Hennings48,153
David Ebsworth
Anders Ullman
Ken Cunningham
Rishi Gupta
Mahendra Shah
Vikas Sinha
Andrew Sinclair66,603

The options and RSUs (other than those granted to Messrs. Hennings and Sinha) vest as to 50% of the ordinary shares in three substantially equal annual installments following the grant date and as to 50% of the ordinary shares in four substantially equal annual installments following the grant date. The options and RSUs granted to

Messrs. Hennings and Sinha vest in three substantially equal annual installments following the grant date. This description relates to the options and RSUs granted in connection with the global offering.
Non-Employee Directors Remuneration
The following table sets forth the remuneration paid during 20172019 to our current non-employee directors:
Name
Annual
Fees
(£)
 
Total
(£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Patrick Humphrey8,750
 8,750
NameFees (£)
 Total (£)
David Ebsworth108,000
 108,000
Anders Ullman30,000
 30,000
Ken Cunningham40,000
 40,000
Rishi Gupta30,000
 30,000
Mahendra Shah30,000
 30,000
Vikas Sinha42,000
 42,000
Andrew Sinclair30,000
 30,000
Martin Edwards22,500
 22,500
Non-Employee Director Service Contracts
The remuneration of the non-executive directors is determined by our board as a whole, based on a review of current practices in other companies. We have entered into service contracts with our directors for their services, which are subject to a three-month termination period.
Pension, Retirement or Similar Benefits
We operate a defined contribution pension scheme which is available to all UK employees. The total amount set aside or accrued by us to provide pension, retirement or similar benefits to our current directors and our executive officers with respect to 20172019 was £41,671,£30,000, which represents contributions made by us in 20172019 in respect of a defined contribution scheme in which Dr. Karlsson, Ms. Poll, Mr. HenningsMs. Rickard, and Mr. Morgan participated.

C. Board Practices
Composition of our Board of Directors
Our Board is comprised of eightnine members. In accordance with our Articles of Association, one third of our directors retire from office at every annual general meeting of shareholders. However, if the number of directors serving on our Board is not divisible by three, then the number nearest but not exceeding 33.3% shall retire from office at each annual general meeting of shareholders. Retiring directors are eligible for re-election and, if no other director is elected to fill his or her position and the director is willing, shall be re-elected by default.

The expiration of the current terms of the members of our board of directors and the period each member has served in that term are as follows:

NameYear Current Term BeganNext year of re-election
Jan-Anders Karlsson, Ph.D.20122020
David Ebsworth, Ph.D.20142018
Ken Cunningham, M.D.20152019
Rishi Gupta20162021
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162019
Vikas Sinha20162021
Anders Ullman, M.D., Ph.D.20152018

NameYear Current Term BeganNext year of re-election
David Zaccardelli, Pharma.D.20202020
David Ebsworth, Ph.D.20182021
Ken Cunningham, M.D.20152022
Rishi Gupta20162020
Mahendra Shah, Ph.D.20162020
Andrew Sinclair, Ph.D.20162022
Vikas Sinha20162020
Anders Ullman, M.D., Ph.D.20182021
Martin Edwards, M.D.20192021
There are no arrangements or understanding between us and any of the members of our board of directors providing for benefits upon termination of their service.

Committees of our Board of Directors
Our Board has three standing committees: an Audit and Risk Committee, a Remuneration Committee and a Nomination and Governance Committee.
Audit and Risk Committee of the Board
The Audit and Risk Committee, which consists of Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair, , assists the Board in overseeing our accounting and financial reporting processes and the audits of our financial statements. Mrstatements and monitoring UK Governance Code compliance and business risk. Mr. Sinha serves as Chairman of the Audit and Risk Committee. The Audit and Risk Committee consists of members of our Board who are financially literate and are also considered to be "audit committee financial experts" as defined by applicable SEC rules and have the requisite financial sophistication as defined under the applicable Nasdaq rules and regulations. Our Board has determined that all of the members of the Audit and Risk Committee satisfy the "independence" requirements set forth in Rule 10A-3 under the Exchange Act. The Audit and Risk Committee will beis governed by a charter that complies with Nasdaq rules.
The Audit and Risk Committee's responsibilities include:include, among other things:
recommending the appointment of the independent auditor to the general meeting of shareholders; 
the appointment, compensation, retention and oversight of the independent auditor; 
pre-approving the audit services and non-audit services to be provided by ourthe independent auditor before the auditor is engaged to render such services;
evaluating the independent auditor's qualifications, performance and independence, and presenting its conclusions to our Board on at least an annual basis; 
reviewing and discussing with the executive officers, our Board and the independent auditor our financial statements and our financial reporting process; and 
considering and recommending to our Board whether the audited financial statements be approved.approved; and
monitoring our review and mitigation of corporate and operational risk.
The Audit and Risk Committee will meetmeets as often as one or more members of the Committee deem necessary, but in any event willmust meet at least four times per year. The Audit and Risk Committee willmust meet at least once per year with our independent auditor, without our executive officers being present.

Remuneration Committee of the Board
The Remuneration Committee, which consists of Dr. Ken Cunningham, Dr. David Ebsworth and Rishi Gupta, assists the Board in determining directors’ and senior executives’executive officers’ compensation. Dr Cunningham serves as Chairman of the Committee.
The Remuneration Committee's responsibilities include:include, among other things:
identifying, reviewing and proposing policies relevant to the compensation of the Company’s directors and executive officers; 
evaluating each executive officer's performance in light of such policies and reporting to the Board; 
analyzing the possible outcomes of the variable remuneration components and how they may affect the remuneration of the executive officers; 
recommending any equity long-term incentive component of each executive officer's compensation in line with the remuneration policy and reviewing our executive officer compensation and benefits policies generally;
appointing and setting the terms of referenceengagement for any remuneration consultants who advise the Committee and obtain benchmarking data with respect to the directors' and executive officers’ compensation; and 
reviewing and assessing risks arising from our compensation policies and practices.
Nomination and Governance Committee of the Board
The Nomination and Governance Committee, which consists of Dr. David Ebsworth, Dr. Mahendra Shah and Dr. Anders Ullman, assists our Board in identifying individuals qualified to become executive and non-executive directors of our Company consistent with criteria established by our Board and in developing our corporate governance principles. Dr Ebsworth serves as Chairman of the Committee.
The Nomination and Governance Committee's responsibilities include:include, among other things:

reviewing and evaluating the structure, size and composition of our Board and making recommendations with regard to any adjustments considered necessary; 
drawing up selection criteria and appointment procedures for Board members; 
identifying and nominating, for the approval of our Board, candidates to fill vacancies on theBoardthe Board and its corresponding committees; 
keeping under review the leadership needs of the Company, both executive and non-executive, and planning the orderly succession of such appointments; and
assessing the functioning of our Board and individual members and reporting the results of such assessment to the Board.

D. Employees
As of December 31, 2017, 20162019, 2018 and 2015,2017, we had 24, 15, and 15 employees, respectively, of which 13, 11, and 9 employees, respectively. All of our employees10 were based in the United Kingdom, except that, asrespectively, and the remainder of December 31, 2017, 2016 and 2015, we had one to four employeeswhich were based outside of the United Kingdom. All of our employees were engaged in either administrative or research and development functions. None of our employees are covered by a collective bargaining agreement.
E. Share Ownership
For information regarding the share ownership of members of our board and executive officers and arrangements involving our employees in our share capital, see “ItemItem 6.B. Compensation, Item 7.A. Major Shareholders”Shareholders and “ItemItem 7.B. Related Party Transactions.


ITEM 7: MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
A. MAJOR SHAREHOLDERS
The following table sets forth information relating to the beneficial ownership of our ordinary shares as of December 31, 20172019, by:
each person, or group of affiliated persons, that beneficially owns 3% or more of our outstanding ordinary shares;shares (including ordinary shares in the form of our ADSs);
each member of our board of directors and each of our other executive officers; and
all board members and executive officers as a group.
The number of ordinary shares beneficially owned by each entity, person, board member or executive officer is determined in accordance with the rules of the SEC, and the information is not necessarily indicative of beneficial ownership for any other purpose. Under such rules, beneficial ownership includes any shares over which the individual has sole or shared voting power or investment power as well as any shares that the individual has the right to acquire within 60 days of February 27, 2018December 31, 2019, through the exercise of any option, warrant or other right. Except as otherwise indicated, and subject to applicable community property laws, the persons named in the table have sole voting and investment power with respect to all ordinary shares held by that person.
The percentage of ordinary shares beneficially owned is computed on the basis of 105,017,400105,326,638 of our ordinary shares outstanding as of February 1, 2018.December 31, 2019. Ordinary shares that a person has the right to acquire within 60 days of December 31, 20172019 are deemed outstanding for purposes of computing the percentage ownership of the person holding such rights, but are not deemed outstanding for purposes of computing the percentage ownership of any other person, except with respect to the percentage ownership of all board members and executive officers as a group. As of February 1, 2018, 55,931,336December 31, 2019, 56,045,857 ordinary shares, representing 53% of our issued and outstanding ordinary shares (including ordinary shares in the form of our ADSs), were held by 1415 U.S. record holders. Unless otherwise indicated below, the address for each beneficial owner listed is c/o Verona Pharma plc, 3 More London Riverside, London SE1 2RE UK.



   
 
Number of
Shares Beneficially Owned

Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113%
Vivo Capital affiliates (2)
13,811,58413%
OrbiMed Private Investments VI, LP (3)
11,871,11411%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01911%
Abingworth Bioventures VI, LP (5)
8,619,7748%
venBio Select Advisor (6)
7,000,0007%
Biodiscovery 4 FCPI (7)
6,652,3986%
Foresite (8)
5,000,0005%
Tekla Capital affiliates (9)
5,296,8455%
Aisling Capital IV, LP (10)
4,138,6434%
Arix Bioscience Holdings Ltd affiliates (11)
3,916,4934%
Canaccord Genuity Group, Inc.(12)

3,255,7923%
Executive Officers and Directors:  
Jan-Anders Karlsson, Ph.D.(13)
749,1421%
Piers Morgan (14)
100,000—%
Kenneth Newman, M.D.(15)
356,6651%
Claire Poll (16)
236,663—%
Richard Hennings—%
Peter Spargo, Ph. D.(17)
139,663—%
Ken Cunningham, M.D. —%
David Ebsworth, Ph.D.(18)
140,703—%
Rishi Gupta—%
Mahendrah Shah, Ph.D.—%
Andrew Sinclair, Ph.D.(19)
—%
Vikas Sinha (20)
22,222—%
Anders Ullman, Ph.D. —%
All executive officers and directors as a group (13 persons)1,745,0582%

 Number of Shares Beneficially Owned
Name and address of beneficial ownerNumberPercentage
3% or Greater Shareholders:  
Novo A/S (1)
14,159,61113.22%
Vivo Capital affiliates (2)
13,811,58412.88%
OrbiMed Private Investments VI, LP (3)
11,871,11211.07%
Growth Equity Opportunities Fund IV, LLC (4)
11,527,01910.76%
Abingworth Bioventures VI, LP (5)
8,619,7658.08%
venBio Select Advisor (6)
7,000,0006.65%
Polar Capital Holdings plc (7)
5,368,8195.09%
Tekla Capital affiliates (8)
5,296,8454.99%
Aisling Capital IV, LP (9)
4,138,6433.91%
Executive Officers and Directors:  
David Zaccardelli, Pharm.D
Piers Morgan (10)
1,712,3621.60%
Kathleen Rickard, M.D.
Claire Poll (11)
799,141*
Ken Cunningham, M.D. 
Martin Edwards
David Ebsworth, Ph.D.(12)
400,303*
Rishi Gupta
Mahendra Shah, Ph.D.
Andrew Sinclair, Ph.D.
Vikas Sinha (13)
102,478*
Anders Ullman, Ph.D. 
All executive officers and directors as a group (12 persons)3,014,2842.83%
* Less than 1%.  
(1) 
Consists of (a) 12,389,985 ordinary shares held directly by Novo A/S, or Novo, and (b) warrants to purchase 1,769,626 ordinary shares. The board of directors of Novo A/S, or the Novo Board, has shared investment and voting control over the securities held by Novo and may exercise such control only with the support of a majority of the Novo Board. As such, no individual member of the Novo Board is deemed to hold any beneficial ownership or reportable pecuniary interest in the securities held by Novo. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D filed with the SEC on June 6, 2017.April 2, 2019. Novo's mailing address is Tuborg Havnevej 19, Hellerup, G7 2900, Denmark.Denmark
(2) 
Consists of (a) 2,388,728 ordinary shares held directly by Vivo Ventures Fund VI, L.P., or Vivo VI, of which 1,126,760 are held in the form of ADSs, (b) warrants to purchase 370,871 ordinary shares held directly by Vivo VI, (c) warrants to purchase 2,717 ordinary shares held directly by Vivo Ventures VI Affiliates Fund, L.P., or Vivo Affiliates VI, (d) 9,554,917 ordinary shares held directly by Vivo Ventures Fund VII L.P., or Vivo VII, of which 4,507,040 are held in the form of ADSs, (e) warrants to purchase 1,462,477 ordinary shares held directly by Vivo VII, (f)  warrants to purchase 31,874 ordinary shares held directly by Vivo Ventures VII Affiliates Fund, L.P., or Vivo Affiliates VII. Vivo Ventures VI, LLC , or Vivo Ventures VI, is the sole general partner of Vivo VI and Vivo Affiliates VI. Vivo Ventures VII, LLC, or Vivo Ventures VII, is the sole general partner of Vivo VII and Vivo Affiliates VII. Vivo Ventures VI and Vivo Ventures VII disclaim beneficial ownership of all shares held by Vivo VI, Vivo Affiliates VI, Vivo VII and Vivo Affiliates VII except to the extent of any pecuniary interest therein. The managing members of Vivo Ventures VI are Drs. Albert Cha, Edgar Engleman and Frank Kung, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo VI and Vivo Affiliates VI. The managing members of Vivo Ventures Vll are Drs. Albert Cha, Edgar Engleman, Frank Kung, Chen Yu and Mr. Shan Fu, each of whom may be deemed to have shared voting and dispositive power of the shares held by Vivo Vll and Vivo Affiliates Vll. Mahendra Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.

Shah, the Managing Director of Vivo Capital, is a member of our Board of Directors and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest arising as a result of his employment by Vivo Capital. Beneficial ownership information is based on information known to us and Forms TR-1 provided to us on May 30, 2017. Vivo Capital's mailing address is 505 Hamilton Avenue, Suite 200, Palo Alto, CA 94301.
(3) 
Consists of (a) 10,003,17510,003,174 ordinary shares held directly by OrbiMed Private Investments VI, LP, or OrbiMedOPI VI, of which 5,333,32810,003,168 are held in the form of ADSs and (b) warrants to purchase 1,867,9391,867,938 ordinary shares are held directly by OrbiMedOPI VI. OrbiMed Capital GP VI LLC, or GP VI, is the general partner of OrbiMedOPI VI. OrbiMed Advisors LLC, or OrbiMed Advisors, ispursuant to its authority as the sole managing member of GP VI. Samuel D. Isaly isVI, the managing membersole general partner of and owner of a controlling interest in OrbiMed Advisors. By virtue of such relationships, GPOPI VI, OrbiMed Advisors and Mr. Isaly may be deemed to have voting and investment power with respect toindirectly beneficially own the ordinary shares held by OrbiMedOPI VI. GP VI, andpursuant to its authority as a resultgeneral partner or OPI VI, may be deemed to have beneficial ownership of such shares. Rishi Gupta, an employee of OrbiMedindirectly beneficially own the ordinary shares held by OPI VI. As a result, Advisors is a member of our Board of Directors. Each ofand GP VI OrbiMedshare the power to direct the vote and to direct the disposition of the ordinary shares held by OPI VI. Advisors Mr. Isalyexercises this investment and Mr. Guptavoting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the ordinary shares held by OrbiMed VI, except to the extent of its or his pecuniary interest therein, if any.OPI VI. Beneficial ownership information is based on information known to us and a Form TR-1 provided to usSchedule 13D/A filed with the SEC on May 25, 2017. OrbiMed Advisors'January 26, 2018. The mailing address of OPI VI, GP VI and Advisors is 601 Lexington Avenue, 54th Floor, New York, NY 10022.

(4) 
Consists of (a) 9,757,393 ordinary shares held directly by Growth Equity Opportunities Fund IV, LLC, or GEO, of which 5,333,328 are held in the form of ADSs, and (c) warrants to purchase 1,769,626 ordinary shares held directly by GEO. New Enterprise Associates 15, L.P., or NEA 15, is the sole member of GEO. NEA Partners 15, L.P., NEA Partners 15, is the sole general partner of NEA 15. NEA 15 GP, LLC, or NEA 15 LLC, is the sole general partner of NEA Partners 15. Peter J. Barris, Forest Baskett, Anthony Florence, Jr., Krishnu Kolluri, David M. Mott, Scott D. Sandell, Peter Sonsini, Jon Sakoda, Ravia Viswanthan and Henry Weller are the managers of NEA 15 LLC. NEA 15, NEA Partners 15, NEA 15 LLC and the managers of NEA 15 LLC share voting and dispositive power with regard to the securities held by GEO. Each of NEA 15, NEA Partners 15 and NEA 15 LLC as well as each of the managers of NEA 15 LLC disclaims beneficial ownership of all shares held by GEO except to the extent of their actual pecuniary interest therein. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 8, 2017. GEO's mailing address is 1954 Greenspring Drive, Suite 600, Timonium, MD 21093-4135.
(5) 
Consists of (a) 7,215,5537,215,544 ordinary shares held directly by Abingworth Bioventures VI, LP, or Abingworth VI, all of which 3,705,000 are held in the form of ADSs, and (b) warrants to purchase 1,404,221 ordinary shares held directly by Abingworth VI. Abingworth Bioventures VI GP LP, or Abingworth GP VI, serves as general partner of Abingworth VI. Abingworth General Partner VI LLP, or Abingworth General Partner VI, serves as general partner of Abingworth GP VI. Abingworth General Partner VI has delegated to Abingworth LLP, all investment and dispositive power over the securities held by Abingworth VI. An Abingworth LLP investment committee comprised of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris approves investment and voting decisions of Abingworth VI by a majority vote, and no individual member has the sole control or voting power over the securities held by Abingworth VI. Abingworth GP VI, Abingworth General Partner VI, Abingworth LLP and each of Stephen Bunting, Timothy Haines, Kurt von Emster and Genghis Lloyd-Harris disclaim beneficial ownership of securities held by Abingworth VI, except to the extent, if any of their pecuniary interest therein. Andrew Sinclair is a Partner and Portfolio Manager at Abingworth LLP and a member of our board of directors. Dr. Sinclair does not have voting or dispositive power over any of the securities held by Abingworth Vl. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 9, 2017. Abingworth VI's mailing address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(6) 
Consists of 7,000,000 ordinary shares held in the form of ADSs by VenBio Select Advisor. This information is based on information known to us. The mailing address for VenBio Select Advisor is 120 W 45th St #2802, New York, NY 10036
(7) 
Consists of (a) 5,767,5855,300,000 ordinary shares of which (a) 4,500,000 ordinary shares are held directly by Polar Biotechnology Fund, or PBF, (b) 800,000 are held by PBF in the form of ADSs, by Biodiscovery 4 FCPI, or Biodiscovery, and (b)(c) warrants to purchase 884,81368,819 ordinary shares held directly by Biodiscovery.PBF. PBF and PCGH are managed by Polar Capital Holdings plc, or PCH. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on May 5, 2017. The mailing address for Biodiscovery is 47 rue du Faubourg Saint-Honoré75401 Cedex 08 Paris FranceSeptember 9, 2019 and information known to us.
(8)
Consists of 5,000,000 ordinary shares held in the form of ADSs by Foresight Capital Management. This information is based on information known to us. The mailing address for Foresight Capital Management is [600 Montgomery Street, Suite 4500, San Francisco, CA 94111
(9) 
Consists of (a) 4,412,031 ordinary shares held directly by Tekla World Healthcare Fund, or Tekla World, of which  2,200,000 are held in the form of ADSs, (b) warrants to purchase 513,192 purchase ordinary shares held directly by Tekla World, and (c) warrants to purchase 371,622 ordinary shares held directly by Tekla Life. Tekla Capital Management LLC, or Tekla Capital, is an investment adviser registered pursuant to Section 203 of the Investment Advisers Act of 1940 and is the investment adviser of Tekla World and Tekla Life, each of which is a registered investment company pursuant to Section 8 of the Investment Company Act of 1940. Each of Tekla Capital and Daniel R. Omstead, through his control of Tekla Capital, has sole power to dispose of the shares beneficially owned by Tekla World and Tekla Life. Neither Tekla Capital nor Daniel R. Omstead has the sole power to vote or direct the vote of the shares beneficially owned by Tekla World and Tekla Life, which power resides in each fund's Board of Trustees. Tekla Capital carries out the voting of the shares under written guidelines established by each fund's Board of Trustees. Beneficial ownership information is based on information known to us and a Schedule 13G filed with the Securities and Exchange CommissionSEC on February 13, 2017.12, 2019. Tekla Capital's mailing address is 100 Federal Street, 19th Floor, Boston, MA 02110.
(10)(9) 
Consists of (a) 3,548,768 ordinary shares held directly by Aisling Capital IV, LP, or Aisling, of which 2,074,080 are held in the form of ADSs, and (b) warrants to purchase 589,875 ordinary shares held directly by Aisling. This information is based on information known to us and a TR-1 provided to us on June 6, 2017. The mailing address of Aisling is Aisling Capital, 888 Seventh Avenue, 12th Floor, New York, NY 1010610106.
(10)
Consists of (a) 147,009 ordinary shares, (b) 238,420 ordinary shares issuable from restricted stock units that will vest within 60 days of December 31, 2019 and (c) 1,326,933 options to purchase ordinary shares that are, or will be within 60 days of December 31, 2019, immediately exercisable.
(11) 
Consists of (a) 1,290,352 ordinary shares held directly by Arix Bioscience Holdings Ltd, or Arix, (b) warrants to purchase 516,141 ordinary shares held directly by Arix and (c) 2,110,000 ordinary shares held directly by Wales Life Sciences Investment Fund, or WLSIF. Arthurian Life Sciences Ltd, or Arthurian, is the general partner of WLSIF and a wholly owned subsidiary of Arix. Beneficial ownership information is based on information known to us and a Form TR-1 provided to us on August 3, 2016 and January 3, 2017. Arix's mailing address is 20 Berkeley Square, London W1J 6EQ, United Kingdom.

(12)
Canaccord Genuity Group Inc. is the beneficial owner of an aggregate of 3,255,792 ordinary shares held directly by (a) Hargreave Hale which holds 2,941,250130,575 ordinary shares and (b) Canaccord Genuity Wealth Management which holds 314,542 ordinary shares. This information is based on information known to us. The mailing address for Canaccord Genuity Group Inc. is 88 Wood Street, London, UK, EC2V 7QR.
(13)
Consists of (a) 89,150 ordinary shares and (b) 659,992668,566 options to purchase ordinary shares that are, or will be immediately exercisable within 60 days of February 1, 2018.December 31, 2019, immediately exercisable.
(14)
Consists of 100,000 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(15)
Consists of 356,665 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(16)(12) 
Consists of (a) 95,000 ordinary shares and (b) 141,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(17)
Consists of (a) 13,000 ordinary shares and (b) 126,663 options to purchase ordinary shares that are or will be immediately exercisable within 60 days of February 1, 2018.
(18)
Consists of (a) 135,787395,387 ordinary shares and (b) warrants to purchase 4,916 ordinary shares.
(19)
Dr. Sinclair is a Partner and Portfolio Manager at Abingworth LLP. Dr. Sinclair does not have voting or dispositive power over any of the shares directly held by Abingworth Vl referenced in footnote (6) above. Dr. Sinclair's business address is 38 Jermyn Street, London SW1Y 6DN, United Kingdom.
(20)(13) 
Consists of (a) 22,222 ordinary shares and (b) options to purchase 80,256 ordinary shares that are or will be immediately exercisable withinwithint 60 days of February 1, 2018.December 31, 2019.
To our knowledge, and other than changesas provided in percentage ownership as a result of the shares issued in connectiontable above, our other filings with our initial public offering of our ADSs,the SEC and this Annual Report, there has been no significant change in the percentage ownership held by theany major shareholders listed aboveshareholder since January 1, 2017, except as discussed under the heading “Related Party Transactions.”2017.
The major shareholders listed above do not have voting rights with respect to their ordinary shares that are different from the voting rights of other holders of our ordinary shares.
ParticipationB. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2019 or currently in the Global Offering
In April 2017, the holders of 3% or moreeffect with any member of our common shares participated in the global offering as follows:board of directors and executive officers.
InvestorNumber of ADSs or shares subscribed forAggregate purchase price
Novo A/S740,740 ADSsUSD 9,999,990
Vivo Capital affiliates
563,380 ADSsUSD 7,605,630
OrbiMed Private Investments VI, LP
666,666 ADSsUSD 8,999,991
New Enterprise Associates, LP666,666 ADSsUSD 8,999,991
Abingworth Bioventures VI, LP
463,125 ADSsUSD 6,252,188
venBio Select Advisor
875,000 ADSsUSD 11,812,500
Biodiscovery 4 FCPI
444,444 ADSsUSD 5,999,994
Foresite600,000 ADSsUSD 8,100,000
Tekla Capital affiliates275,000 ADSsUSD 3,712,500
Aisling Capital IV, LP259,260 ADSsUSD 3,500,010
Arix Bioscience Holdings Ltd affiliates170,228 ADSsUSD 2,298,078
Canaccord Genuity Group, Inc.1,255,001 sharesGBP 1,656,601
Shareholder Private Placement
In May 2017, we issued and sold 13,373 ordinary shares to our Chairman, Dr. David Ebsworth, for aggregate gross proceeds to us of £18,000.

Registration Rights Agreement
In July 2016, we entered into a registration rights agreement that providedprovides certain demand registration rights to Abingworth Bioventures VI, LP, or Abingworth, Growth Equity Opportunities Fund IV, LLC, OrbiMed Private Investments VI, LP, or OrbiMed, and Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., and Vivo Ventures Fund VI Affiliates Fund, L.P., or collectively, Vivo Capital, with respect to the ordinary shares and any ADSs held by them.
Demand Registration Rights
At any time, the holders of at least a majority of the registrable securities as defined in the registration rights agreement have the right to demand that we effect an underwritten public offering of their registrable securities pursuant to an effective registration statement under the Securities Act. These registration rights are subject to specified conditions and limitations including the right of the underwriters, if any, to limit the number of shares included in any such registration under specified circumstances. Upon such a request, we are required to use commercially reasonable efforts to effect the public offering.
Expenses of Registration
We will pay all expenses relating to any registration under the registration rights agreement, other than selling commission, discounts or brokerage fees and stock transfer taxes, subject to specified conditions and limitations.
Termination of Registration Rights
The registration rights granted under the registration rights agreement shall terminate upon the earlier to occur of (i) the fifth anniversary of the closing of the global offering and (ii) the date on which there are no registrable securities remaining pursuant to the registration rights agreement.
Relationship Agreements
In June 2016, we entered into relationship agreements with each of Vivo Capital, OrbiMed, and Abingworth, pursuant to which our relationship with such parties is regulated and their influence over our corporate actions and activities, and the outcome of general matters pertaining to us, are limited. Pursuant to the relationship agreements, we also agreed to appoint representatives designated by Vivo Capital, OrbiMed, and Abingworth to our board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair, respectively. The appointment rights under the relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of our issued ordinary shares, or (ii) our ordinary shares ceasing to be admitted to AIM. In addition, each of the relationship agreements will automatically terminate upon the first date which Vivo Capital, OrbiMed, or Abingworth, as applicable, cease to have certain rights and obligations under the relationship agreements.
Indemnification Agreements
To the extent permitted by the U.K. Companies Act 2006, we are empowered to indemnify our directors against any liability they incur by reason of their directorship. We have also entered into a deed of indemnity with each of our directors and executive officers and this has been in place since March 31, 2017.officers. In addition to such indemnification, we provide our directors and executive officers with directors’ and officers’ liability insurance.
B. Related Party Transactions.
The following is a description of related party transactions we have entered into since January 1, 2017 or currently in effect with any member of our board of directors and executive officers.
Agreements with Our Executive Officers and Directors
We have entered into employment agreements with certain of our executive officers and service agreements with our non‑employee directors. See Item 6B6.B. Compensation and noteNote 8 of our Annual Consolidated Financial Statements included elsewhere in this Annual Report.
Other Transactions
At December 31, 2019, there was a receivable of £nil (2018: £126 thousand) due from one director and two key management personnel relating to tax due on RSUs that vested in the financial statements.
Participation in U.S. Initial Public Offering
As partyear ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. The Company notes that the transaction that generated this receivable was potentially a breach of Section 402 of the global offering our Chairman, Dr. David Ebsworth, purchased 13,373 shares at £1.32 per share generating gross proceedsSarbanes-Oxley Act of £18 thousand. The transaction was on2002. See Item 3.D. Risk Factors-Risks Related to Our ADSs and Ordinary Shares. We may have inadvertently violated Section 13(k) of the same termsExchange Act (implementing Section 402 of the Sarbanes-Oxley Act of 2002) and may be subject to sanctions as third parties.a result.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
C. Interests of Experts and Counsel
Not applicable.


ITEM 8: FINANCIAL INFORMATION
A. Consolidated Statements and Other Financial Information.
Consolidated Financial Statements
Our consolidated financial statements are appended at the end of this Annual Report, starting at page F-1, and are incorporated herein by reference.
Legal Proceedings
We are not subject to any material legal proceedings.
Dividend Distribution Policy
We have never paid or declared any cash dividends on our ordinary shares, and we do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Under English law, among other things, we may only pay dividends if we have sufficient distributable reserves (on a non consolidatednon-consolidated basis), which are our accumulated realized profits that have not been previously distributed or capitalized less our accumulated realized losses, so far as such losses have not been previously written off in a reduction or reorganization of capital.
B. Significant Changes.
There have been no significant changes since December 31, 2017.

2019.

ITEM 9: THE OFFER AND THE LISTING
A. Offer and Listing Details.
Our Ordinary Shares are listed on AIM, a market of the London Stock Exchange, under the symbol “VRP”, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017. The initial public offering price of our ADSs was $13.50 per ADS. The following table sets forth for the periods indicated the high and low sales prices per common share as reported on The Nasdaq Global Market:
   
 Price Per Common ADS ($)
 HighLow
Year Ended December 31,  
2017 (from April 27 through December 31)16.9510.80
Quarter Ended  
Second Quarter 2017 (beginning April 27)16.2611.40
Third Quarter 201716.9511.54
Fourth Quarter 201715.7510.80
First Quarter 2018 (through February 16)13.2511.69
Month of  
August 201712.7011.80
September 201716.9511.96
October 201715.7513.35
November 201714.1310.80
December 201712.1011.30
January 201813.2512.21
February 2018 (through February 16)12.8011.693

Our ordinary shares have been trading on AIM, a market operated by the London Stock Exchange plc, under the symbol “VRP” since September 2006. The following table sets forth, for the periods indicated, the reported high and low closing sale prices of our ordinary shares on AIM in pounds sterling.

    
 Price Per Share (£)
 High Low
Year Ended December 31,   
20132.58 0.88
20142.18 0.53
20153.36 0.60
20162.16 1.19
20171.69 1.04
Quarter Ended   
First Quarter 20162.16 1.19
Second Quarter 20161.86 1.41
Third Quarter 20161.73 1.48
Fourth Quarter 20162.06 1.55
First Quarter 20171.69 1.25
Second Quarter 20171.61 1.11
Third Quarter 20171.53 1.12
Fourth Quarter 20171.48 1.04
First Quarter 2018 (through February 16)1.21 1.02
Month of   
August 20171.24 1.16
September 20171.53 1.12
October 20171.48 1.33
November 20171.34 1.06
December 20171.11 1.04
January 20181.21 1.06
February 2018 (through February 16)1.21 1.02

.
B. Plan of Distribution.
Not applicable.
C. Markets.
Our Ordinary Shares have beenare listed on the AIM, a market of the London Stock Exchange, since September 19, 2006, and our ADSs have beenare listed on The Nasdaq Global Market under the symbol “VRNA” since April 27, 2017.Market.
D. Selling Shareholders.
Not applicable.
E. Dilution.
Not applicable.

F. Expenses of the Issue.
Not applicable.


ITEM 10: ADDITIONAL INFORMATION
A. Share Capital.
Not applicable.
B. Memorandum and Articles of Association.

A copy of our Articles of Association is attached as Exhibit 1.1 to this Annual Report. The information called for by this Item is set forth in responseExhibit 2.5 to this item is contained under the caption “Description of Share Capital and Articles of Association” in our final prospectus filed with the Securities and Exchange Commission on April 28, 2017Annual Report and is incorporated herein by reference.reference into this Annual Report.
C. Material Contracts.
TheIn addition to the contracts described elsewhere in this Annual Report, the following are summaries of each material contract, other than material contracts entered into in the ordinary course of business, to which we are a party for the two years preceding the date of this Annual Report.
Underwriting Agreement
On April 26, 2017, we entered into an underwriting agreement with Jefferies LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the underwriters, on April 26, 2017, for the initial public offering of 5,768,000 American Depositary Shares in the United States and the private placement of 1,255,001 ordinary shares in Europe. Pursuant to the underwriting agreement, we paid underwriting discounts and commissions of $0.9450 per ADS and £0.0924 per ordinary shares. The underwriting agreement contained customary representations and warranties. We also agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect of such liabilities.
Employment Agreements
We have entered into employment agreements with our executive officers. Information on the employment agreements may be found in this Annual Report under “Item 6.B. Compensation-Executive Officer Remuneration-Executive Officer Employment Agreements” and is incorporated herein by reference.
Indemnification Agreements
We have entered into indemnification agreements with our executive officers and board members. Information on the indemnification agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Indemnification Agreements” and is incorporated herein by reference.
Registration Rights Agreements
We have entered into registration rights agreement with certain of our existing shareholders. Information on the registration rights agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Registration Rights Agreement” and is incorporated herein by reference.
Relationship Agreements
We have entered into relationship agreements with certain of our existing shareholders. Information on these relationship agreements may be found in this Annual Report under “Item 7-Major Shareholders and Related Party Transactions-Relationship Agreements” and is incorporated herein by reference.
Lease
Our principal office is located at 3 More London Riverside, London SE1 2RE, United Kingdom, where we lease office space. We also lease office space in White Plains,New York , New York. The office space in these two locations is held under four leases that terminate between August 2018 and Januaryin 2020 and 2021. We pay £0.5 million per year under these leases we pay £0.3m per year.leases. We intend to add new facilities as we add employees, and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion of our operations.

D. Exchange Controls.
There are no governmental laws, decrees, regulations or other legislation in the United Kingdom that may affect the import or export of capital, including the availability of cash and cash equivalents for use by us, or that may affect the remittance of dividends, interest, or other payments by us to non‑resident holders of our ordinary shares or ADSs, other than withholding tax requirements. There is no limitation imposed by English law or in our Articles of Association on the right of non‑residents to hold or vote shares.
E. Taxation
The following is a description of thecertain material U.S. federal income tax consequences to the U.S. Holders described below of owning and disposing of our ordinary shares or ADSs. It is not a comprehensive description of all tax considerations that may be relevant to a particular person's decision to acquire securities. This discussion applies only to a U.S. Holder that holds our ordinary shares or ADSs as a capital asset for tax purposes (generally, property held for investment). In addition, it does not describe all of the tax consequences that may be relevant in light of a U.S. Holder's particular circumstances, including state and local tax consequences, estate tax consequences, alternative minimum tax consequences, the potential application of the Medicare contribution tax, and tax consequences applicable to U.S. Holders subject to special rules, such as:
banks, insurance companies, and certain other financial institutions;
U.S. expatriates and certain former citizens or long-term residents of the United States;
dealers or traders in securities who use a mark-to-market method of tax accounting;
persons holding our ordinary shares or ADSs as part of a hedging transaction, "straddle," wash sale, conversion transaction or integrated transaction or persons entering into a constructive sale with respect to ordinary shares or ADSs;
persons whose "functional currency" for U.S. federal income tax purposes is not the U.S. dollar;
brokers, dealers or traders in securities, commodities or currencies;
tax-exempt entities or government organizations;
S corporations, partnerships, or other entities or arrangements classified as partnerships for U.S. federal income tax purposes;
regulated investment companies or real estate investment trusts;
persons who acquired our ordinary shares or ADSs pursuant to the exercise of any employee stock option or otherwise as compensation;

persons subject to special tax accounting rules as a result of any item of gross income with respect to ordinary shares or ADSs being taken into account in an applicable financial statement;
persons that own or are deemed to own ten percent or more of our ordinary shares by vote or value; and
persons holding our ordinary shares or ADSs in connection with a trade or business, permanent establishment, or fixed base outside the United States.
If an entity that is classified as a partnership for U.S. federal income tax purposes holds our ordinary shares or ADSs, the U.S. federal income tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. Partnerships holding our ordinary shares or ADSs and partners in such partnerships are encouraged to consult their tax advisers as to the particular U.S. federal income tax consequences of holding and disposing of our ordinary shares or ADSs.
The discussion is based on the Internal Revenue Code of 1986, as amended or the Code,(the "Code"), administrative pronouncements, judicial decisions, final, temporary and proposed Treasury Regulations, and the income tax treaty between the United Kingdom and the United States (the "Treaty") all as of the date hereof, changes to any of which may affect the tax consequences described herein — possibly with retroactive effect.
A "U.S. Holder" is a holder who, for U.S. federal income tax purposes, is a beneficial owner of our ordinary shares or ADSs who is eligible for the benefits of the Treaty and is:

(1)a citizen or individual resident of the United States;
(2)a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States, any state therein or the District of Columbia; or
(3)an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source.
U.S. Holders are encouraged to consult their tax advisers concerning the U.S. federal, state, local and foreign tax consequences of owning and disposing of our ordinary shares or ADSs in their particular circumstances.
The discussion below assumes that the representations contained in the deposit agreement with respect to our ADSs are true and that the obligations in the deposit agreement and any related agreement will be complied with in accordance with their terms. Generally, a holder of an ADS should be treated for U.S. federal income tax purposes as holding the ordinary shares represented by the ADS. Accordingly, no gain or loss will be recognized upon an exchange of ADSs for ordinary shares. The U.S. Treasury has expressed concerns that intermediaries in the chain of ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the beneficial ownership of the underlying security. Accordingly the creditability of foreign taxes, if any, as described below, could be affected by actions taken by intermediaries in the chain of ownership between the holders of our ADSs and our Companycompany if as a result of such actions the holders of our ADSs are not properly treated as beneficial owners of the underlying ordinary shares.
Passive Foreign Investment Company ("PFIC") Rules
Because we dodid not expect to earn revenue from our business operations during the current taxable year ended December 31, 2019, and because our sole source of income currently is interest on bank accounts held by us, we believe we will likely be classified as a PFIC for the current taxable year.year ended December 31, 2019. A non-U.S. corporation will be classified as a PFIC for any taxable year in which, after applying certain look-through rules, either:
at least 75% of its gross income is passive income (such as interest income); or
at least 50% of its gross assets (determined on the basis of a quarterly average) is attributable to assets that produce passive income or are held for the production of passive income.
We will be treated as owning our proportionate share of the assets and earning our proportionate share of the income of any other corporation, the equity of which we own, directly or indirectly, 25% or more (by value).
A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year. As a result, our PFIC status may change. While it is possible we may not meet the PFIC test described above once we start generating substantial revenue from our business operations, the analysis is factual and it is possible we may continue to be a PFIC for future years. In particular, the total value of our assets for purposes of the asset test generally will be calculated using the market price of theour ordinary shares or ADSs, which may fluctuate considerably. Fluctuations in the market price of theour ordinary shares or ADSs may result in our being a PFIC for any taxable year.
If we are classified as a PFIC in any year with respect to which a U.S. Holder owns theour ordinary shares or ADSs, we will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding years during which the U.S. Holder owns theour ordinary shares or ADSs, regardless of whether we continue to meet the tests

described above unless (1) we cease to be a PFIC and the U.S. Holder has made a "deemed sale" election under the PFIC rules, or (2) the U.S. Holder makes a QEF Election (defined below) with respect to taxable years in which we are a PFIC. If such election is made, youthe U.S. Holder will be deemed to have sold theour ordinary shares or ADSs you holdit holds at their fair market value and any gain from such deemed sale would be subject to the rules described below. After the deemed sale election, so long as we do not become a PFIC in a subsequent taxable year, yourthe ordinary shares or ADSs with respect to which such election was made will not be treated as shares in a PFIC and youthe U.S. Holder will not be subject to the rules described below with respect to any "excess distribution" you receiveit receives from us or any gain from an actual sale or other disposition of theour ordinary shares or ADSs. U.S. Holders should consult their tax advisors as to the possibility and consequences of making a deemed sale election if we cease to be a PFIC and such election becomes available.
For each taxable year we are treated as a PFIC with respect to you, youa U.S. Holder, such holder will be subject to special tax rules with respect to any "excess distribution" you receiveit receives and any gain you recognizeit recognizes from a sale or other disposition (including a pledge) of our ordinary shares or ADSs, unless you makesuch holder makes a QEF Election or a mark-to-market election as discussed below. Distributions you receivethat a U.S. Holder receives in a taxable year that are greater than 125% of the average annual distributions you received during the shorter of the three preceding taxable years or yoursuch holder's holding period for theout ordinary shares or ADSs will be treated as an excess distribution. Under these special tax rules:

the excess distribution or gain will be allocated ratably over yoursuch holder's holding period for theour ordinary shares or ADSs;
the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we became a PFIC, will be treated as ordinary income; and
the amount allocated to each other year will be subject to the highest tax rate in effect for that year and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.
The tax liability for amounts allocated to years prior to the year of disposition or "excess distribution" cannot be offset by any net operating losses for such years, and gains (but not losses) realized on the sale of theour ordinary shares or ADSs cannot be treated as capital, even if you hold the U.S. Holder holds our ordinary shares or ADSs as capital assets.
If we are a PFIC, a U.S. Holder will generally be subject to similar rules with respect to distributions we receive from, and our dispositions of the stock of, any of our direct or indirect subsidiaries that also are PFICs, as if such distributions were indirectly received by, and/or dispositions were indirectly carried out by, such U.S. Holder. U.S. Holders should consult their tax advisors regarding the application of the PFIC rules to our subsidiaries.
U.S. Holders can avoid the interest charge on excess distributions or gain relating to theour ordinary shares or ADSs by making a mark-to-market election with respect to theour ordinary shares or ADSs, provided that theour ordinary shares or ADSs are "marketable." OrdinaryOur ordinary shares or ADSs will be marketable if they are "regularly traded" on certain U.S. stock exchanges or on a foreign stock exchange that meets certain conditions. For these purposes, theour ordinary shares or ADSs will be considered regularly traded during any calendar year during which they are traded, other than in de minimis quantities, on at least 15 days during each calendar quarterquarter. Any trades that have as their principal purpose meeting this requirement will be disregarded. Our ADSs will beare listed on the Nasdaq Global Market and our ordinary shares are traded on AIM, a market of the London Stock Exchange, each of, which is a qualified exchange for these purposes. Consequently, if our ADSs remain listed on the Nasdaq Global Market or our ordinary shares remain listed on AIM and, in each case, are regularly traded, and you are a holder of ADSs, we expect the mark-to-market election would be available to youU.S. Holders of such ordinary shares or ADSs if we are a PFIC (which we believe likely for the current year). Each U.S. Holder should consult its tax advisor as to the whether a mark-to-market election is available or advisable with respect to theour ordinary shares or ADSs.
A U.S. Holder that makes a mark-to-market election must include in ordinary income for each year an amount equal to the excess, if any, of the fair market value of theour ordinary shares or ADSs at the close of the taxable year over the U.S. Holder's adjusted tax basis in theour ordinary shares or ADSs. An electing holder may also claim an ordinary loss deduction for the excess, if any, of the U.S. Holder's adjusted basis in theour ordinary shares or ADSs over the fair market value of theour ordinary shares or ADSs at the close of the taxable year, but this deduction is allowable only to the extent of any net mark-to-market gains for prior years. Gains from an actual sale or other disposition of theour ordinary shares or ADSs will be treated as ordinary income, and any losses incurred on a sale or other disposition of theour ordinary shares or ADSs will be treated as an ordinary loss to the extent of any net mark-to-market gains for prior years. Once made, the election cannot be revoked without the consent of the IRSU.S. Internal Revenue Service (the "IRS"), unless theour ordinary shares or ADSs cease to be marketable.

However, a mark-to-market election generally cannot be made for equity interests in any lower-tier PFICs that we own, unless shares of such lower-tier PFIC are themselves "marketable." We believe that
Rhinopharma Limited will likely be treated as a lower-tier PFIC. As a result, even if a U.S. Holder validly makes a mark-to-market election with respect to our ordinary shares or ADSs, the U.S. Holder may continue to be subject to the PFIC rules (described above) with respect to its indirect interest in any of our investments that are treated as an equity interest in a PFIC for U.S. federal income tax purposes. U.S. Holders should consult their tax advisors as to the availability and desirability of a mark-to-market election, as well as the impact of such election on interests in any lower-tier PFICs.
Alternatively, a U.S. Holder can make an election, if we provide the necessary information, to treat us and each lower-tier PFIC as a qualified electing fund (a "QEF Election") in the first taxable year we (and our relevant subsidiaries) are treated as a PFIC with respect to the holder. If such election remains in place while we and any lower-tier PFIC subsidiaries are PFICs, we and our subsidiaries will not be treated as PFICs with respect to such U.S. Holder when we cease to be a PFIC. A U.S. Holder must make the QEF Election for each PFIC by attaching a separate properly completed IRS Form 8621 for each PFIC to the holder's timely filed U.S. federal income tax return. We will provide the information necessary for a U.S. Holder to make a QEF Election with respect to us and will cause each lower-tier PFIC which we control to provide such information with respect to such lower-tier PFIC.

If a U.S. Holder makes a QEF Election with respect to a PFIC, the holder will be currently taxable on its pro rata share of the PFIC's ordinary earnings and net capital gain (at ordinary income and capital gain rates, respectively) for each taxable year that the entity is classified as a PFIC. If a U.S. Holder makes a QEF Election with respect to us, any distributions paid by us out of our earnings and profits that were previously included in the holder's income under the QEF Election would not be taxable to the holder. A U.S. Holder will increase its tax basis in itsour ordinary shares or ADSs by an amount equal to any income included under the QEF Election and will decrease its tax basis by any amount distributed on theour ordinary shares or ADSs that is not included in the holder's income. In addition, a U.S. Holder will recognize capital gain or loss on the disposition of our ordinary shares or ADSs in an amount equal to the difference between the amount realized and the holder's adjusted tax basis in theour ordinary shares or ADSs. U.S. Holders should note that if they make QEF Elections with respect to us and lower-tier PFICs, they may be required to pay U.S. federal income tax with respect to theirour ordinary shares or ADSs for any taxable year significantly in excess of any cash distributions received on theour ordinary shares or ADSs for such taxable year. U.S. Holders should consult their tax advisors regarding making QEF Elections in their particular circumstances.
Unless otherwise provided by the U.S. Treasury, each U.S. shareholderHolder of a PFIC is required to file an annual report containing such information as the U.S. Treasury may require. A U.S. Holder's failure to file the annual report will cause the statute of limitations for such U.S. Holder's U.S. federal income tax return to remain open with regard to the items required to be included in such report until three years after the U.S. Holder files the annual report, and, unless such failure is due to reasonable cause and not willful neglect, the statute of limitations for the U.S. Holder's entire U.S. federal income tax return will remain open during such period. U.S. Holders should consult their tax advisors regarding the requirements of filing such information returns under these rules.
Taxation of Distributions
Subject to the discussion above under "Passive Foreign Investment Company ("PFIC") Rules," distributions paid on our ordinary shares or ADSs, other than certain pro rata distributions of ordinary shares or ADSs, will generally be treated as dividends to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Because we do not calculate our earnings and profits under U.S. federal income tax principles, we expect that distributions generally will be reported to U.S. Holders as dividends. Subject to applicable limitations, dividends paid to certain non-corporate U.S. Holders may be taxable at preferential rates applicable to "qualified dividend income." However, the qualified dividend income treatment may not apply if we are treated as a PFIC with respect to the U.S. Holder. The amount of a dividend will include any amounts withheld by us in respect of United Kingdom income taxes. The amount of the dividend will be treated as foreign-source dividend income to U.S. Holders and will not be eligible for the dividends-received deduction generally available to U.S. corporations under the Code. Dividends will generally be included in a U.S. Holder's income on the date of the U.S. Holder's receipt of the dividend. The amount of any dividend income paid in foreign currency will be the U.S. dollar amount calculated by reference to the exchange rate in effect on the date of actual or constructive receipt, regardless of whether the payment is in fact converted into U.S. dollars. If the dividend is converted into U.S. dollars on the date of receipt, a U.S. Holder should not be required to recognize foreign currency gain or loss in respect of the dividend income. A U.S. Holder may have foreign currency gain or loss if the dividend is converted into U.S. dollars after the date of receipt. Such gain or loss would generally be treated as U.S.-source ordinary income or loss. The amount of any distribution of

property other than cash (and other than certain pro rata distributions of ordinary shares or ADSs or rights to acquire ordinary shares or ADSs) will be the fair market value of such property on the date of distribution.
For foreign tax credit purposes, our dividends will generally be treated as passive category income. Subject to applicable limitations, some of which vary depending upon the U.S. Holder's particular circumstances, any United Kingdom income taxes withheld from dividends on our ordinary shares or ADSs at a rate not exceeding the rate provided by the Treaty will be creditable against the U.S. Holder's U.S. federal income tax liability. The rules governing foreign tax credits are complex and U.S. Holders should consult their tax advisers regarding the creditability of foreign taxes in their particular circumstances. In lieu of claiming a foreign tax credit, U.S. Holders may, at their election, deduct foreign taxes, including any United Kingdom income tax, in computing their taxable income, subject to generally applicable limitations under U.S. law. An election to deduct foreign taxes instead of claiming foreign tax credits applies to all foreign taxes paid or accrued in the taxable year.

Sale or Other Taxable Disposition of Our Ordinary Shares and ADSs
Subject to the discussion above under "Passive Foreign Investment ("PFIC") Company Rules," gain or loss realized on the sale or other taxable disposition of our ordinary shares or ADSs will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder held theour ordinary shares or ADSs for more than one year. The amount of the gain or loss will equal the difference between the U.S. Holder's tax basis in theour ordinary shares or ADSs disposed of and the amount realized on the disposition, in each case as determined in U.S. dollars. This gain or loss will generally be U.S.-source gain or loss for foreign tax credit purposes. The deductibility of capital losses is subject to limitations.
If the consideration received by a U.S. Holder is not paid in U.S. dollars, the amount realized will be the U.S. dollar value of the payment received determined by reference to the spot rate of exchange on the date of the sale or other disposition. However, if theour ordinary shares or ADSs are treated as traded on an "established securities market" and youthe U.S. Holder is are either a cash basis taxpayer or an accrual basis taxpayer that has made a special election (which must be applied consistently from year to year and cannot be changed without the consent of the IRS), yousuch holder will determine the U.S. dollar value of the amount realized in a non-U.S. dollar currency by translating the amount received at the spot rate of exchange on the settlement date of the sale. If you area U.S. Holder is an accrual basis taxpayer that is not eligible to or does not elect to determine the amount realized using the spot rate on the settlement date, yousuch holder will recognize foreign currency gain or loss to the extent of any difference between the U.S. dollar amount realized on the date of sale or disposition and the U.S. dollar value of the currency received at the spot rate on the settlement date.
WE STRONGLY URGE YOUINVESTORS IN OUR ORDINARY SHARES OR ADSs TO CONSULT YOURTHEIR TAX ADVISORADVISORS REGARDING THE IMPACT OF OUR PFIC STATUS ON YOURTHEIR INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs AS WELL AS THE APPLICATION OF THE PFIC RULES TO YOURSUCH INVESTMENT IN THEOUR ORDINARY SHARES OR ADSs.
Information Reporting and Backup Withholding
Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries generally are subject to information reporting, and may be subject to backup withholding, unless (i) the U.S. Holder is a corporation or other exempt recipient or (ii) in the case of backup withholding, the U.S. Holder provides a correct taxpayer identification number and certifies that it is not subject to backup withholding.
Backup withholding is not an additional tax. The amount of any backup withholding from a payment to a U.S. Holder will be allowed as a credit against the holder's U.S. federal income tax liability and may entitle it to a refund, provided that the required information is timely furnished to the IRS.
Information with Respect to Foreign Financial Assets
Certain U.S. Holders who are individuals (and, under proposed regulations, certain entities) may be required to report information relating to theour ordinary shares or ADSs, subject to certain exceptions (including an exception for ordinary shares or ADSs held in accounts maintained by certain U.S. financial institutions). U.S. Holders should consult their tax advisers regarding their reporting obligations with respect to their ownership and disposition of theour ordinary shares or ADSs.
F. Dividends and Paying Agents.
Not applicable.

G. Statement by Experts.
Not applicable.
H. Documents on Display.
We maintain a corporate website at www.veronapharma.com. We make available free of charge on our website our Reports on Form 6-K, and we intend make available our Annual Reports on Form 20-F, as soon as reasonably practicable afterand any other reports that we electronically file such material with, or furnish it to,with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included our website address in this Annual Report solely as an inactive textual reference.

You may also review a copy of this Annual Report, including exhibits and any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SEC’s Public Reference Room in Room 1580, 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website (www.sec.gov)at www.sec.gov that contains reports, proxy and information statements and other information regarding registrantsissuers that file electronically, such as us, with the SEC.
References made in this Annual Report to any contract or certain other document of Verona Pharma plc are not necessarily complete and you should refer to the exhibits attached or incorporated by reference into this Annual Report for copies of the actual contract or document.
I. Subsidiary Information.
Not applicable.



ITEM 11: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to a variety of financial risks. Our overall risk management program seeks to minimize potential adverse effects of these financial risks on our financial performance.
Credit Risk
We consider all of our material counterparties to be creditworthy. We consider the credit risk for each of our counterparties to be low and do not have a significant concentration of credit risk at any of our counterparties.
Liquidity Risk
We manage our liquidity risk by maintaining adequate cash reserves at banking facilities, and by continuously monitoring our cash forecasts, our actual cash flows and by matching the maturity profiles of financial assets and liabilities.
Currency Risk
Foreign currency risk reflects the risk that the value of a financial commitment or recognized asset or liability will fluctuate due to changes in foreign currency rates. Our financial position, as expressed in pounds sterling, are exposed to movements in foreign exchange rates against the U.S. dollar and the Euro. Our main trading currencies are pounds sterling, the U.S. dollar and the Euro. We are exposed to foreign currency risk as a result of operating transactions and the translation forof foreign bank accounts. We monitor our exposure to foreign exchange risk. We have not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
Interest rate Risk
Interest rate risk reflects the risk that the value of a financial instrument will fluctuate as a result of a change in market interest rates on classes of financial assets and financial liabilities. We do not hold any derivative instruments to manage interest rate risk.
See note 3.1 of the financial statements for quantitative disclosures about market risk.


ITEM 12: DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A. Debt Securities.
Not applicable.
B. Warrants and Rights.
Not applicable.
C. Other Securities.
Not applicable.

D. American Depositary Shares.

Fees and Charges
Holders of our ADSs are required to pay the following fees under the terms of the deposit agreement:

 
Service Fee
Issuance of ADSs (e.g., an issuance of ADS upon a deposit of ordinary shares or upon a change in the ADS(s)‑to‑ordinary shares ratio), excluding ADS issuances as a result of distributions of ordinary shares Up to $0.05 per ADS issued
Cancellation of ADSs (e.g., a cancellation of ADSs for delivery of deposited property or upon a change in the ADS(s)‑to‑ordinary shares ratio) Up to $0.05 per ADS cancelled
Distribution of cash dividends or other cash distributions (e.g., upon a sale of rights and other entitlements) Up to $0.05 per ADS held
Distribution of ADSs pursuant to (i) stock dividends or other free stock distributions, or (ii) exercise of rights to purchase additional ADSs Up to $0.05 per ADS held
Distribution of securities other than ADSs or rights to purchase additional ADSs (e.g., upon a spin‑off) Up to $0.05 per ADS held
ADS Services Up to $0.05 per ADS held on the applicable record date(s) established by the depositary
Holders of our ADSs are also responsible to pay certain charges such as:
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
taxes (including applicable interest and penalties) and other governmental charges;
the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
certain cable, telex and facsimile transmission and delivery expenses;
the expenses and charges incurred by the depositary in the conversion of foreign currency;
the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and American Depositary Receipts; and
the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) the issuance of ADSs, and (ii) the cancellation of ADSs are charged to the person to whom the ADSs are issued (in the case of ADS issuances) and to the person whose ADSs are cancelled (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs being issued or the DTC participant(s) holding the ADSs being cancelled, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to the account of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participants as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges holders of our ADSs may be required to pay may vary over time and may be changed by us and by the depositary. Holders of our ADSs will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADRADS program, by making available a portion of the ADS fees charged in respect of the ADRADS program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.


PART II
ITEM 13: DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
None.

ITEM 14: MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
A.    Not applicableNone
B.    Not applicableNone
C.    Not applicableNone
D.    Not applicableNone

E.    Use of Proceeds.
In May 2017, we completed the initial public offering of our American Depositary SharesADSs in the United States and a private placement of our ordinary shares in Europe, or the global offering. In the global offering we issued and sold 6,501,738 ADSs, including 733,738 ADSs issued and sold upon the partial exercises ofby the underwriters pursuant to their overallotment option to purchase additional ADSs, at a public offering price of $13.50 per ADS, and 1,225,001 ordinary shares at an offering price of £1.32 per share.
The offer and sale of all of the ADSs and ordinary shares in the global offering was registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124), which was declared effective by the SEC on April 26, 2017, and a registration statement on Form F-1 to register additional securities (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, or, together, the Registration Statement. Under the Registration Statement, we registered 5,768,000 ADSs, 1,225,001 ordinary shares, and 865,200 ADSs issuable upon exercise of the underwriters’ option to purchase additional ADSs at a public offering price of $13.50 per ADS and £1.32 per ordinary share, for a registered aggregate offering price of approximately $89.9 million including the 733,738 ADSs issued and sold upon the partial exercises of the underwriters’ option to purchase additional ADSs. Following the sale of the ADSs and ordinary shares in connection with the closing of the global offering, the offering terminated. The offering commenced on April 18, 2017 and did not terminate until the sale of all of the shares offered. Jefferies LLC and Stifel, Nicholaus & Company, Incorporated acted as joint book-running managers of the offering, and Wedbush Securities Inc. and SunTrust Robinson Humphrey, Inc. acted as co-managers of the offering.
In addition, a further 254,099 shares were issued to private investors for proceeds of $0.4m.
We received aggregate gross proceeds from the global offering of approximately $90.3$89.9 million, orand aggregate net proceeds of approximately $80.8 million after deducting underwriting discounts and commissions of approximately $6.3 million and offering expenses of approximately $3.2 million. No payments for such expenses were made directly or indirectly to (i) any of our officers, members of our board of directors, or their associates, (ii) any persons owning 10% or more of any class of our equity securities or (iii) any of our affiliates.
The offer and sale of the ADSs and ordinary shares in the global offering were registered under the Securities Act pursuant to a registration statement on Form F-1 (File No. 333-217124) to register ordinary shares, which was declared effective by the SEC on April 26, 2017, a registration statement on Form F-1 to register additional ordinary shares (File No. 333-217487), which was immediately effective upon filing on April 26, 2017, and a registration statement on Form F-6 (File No. 333-217353) to register the ADSs, which was declared effective by the SEC on April 26, 2017, or, collectively, the Registration Statements. Under the Registration Statements, we registered an aggregate offering price of approximately $91.7 million of ordinary shares and 100,000,000 ADSs for a registered aggregate offering price of $5.0 million.
There has been no material change in our planned use of the net proceeds from the global offering as described in our final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act with the SEC on April 28, 2017.

ITEM 15: CONTROLS AND PROCEDURES
Limitations on Effectiveness of Controls and Procedures
In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.
Disclosure Controls and Procedures.
Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended)Act), as of the end of the period covered by this Annual Report on Form 20-F.Report. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date,December 31, 2019, our disclosure controls and procedures were effective ateffective.
Management’s Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, as such term is defined in Rule 13a-15(f) under the reasonable assurance level asExchange Act.
Our management conducted an assessment of December 31, 2017.

This annual report does not include a reportthe effectiveness of management’s assessment regardingour internal control over financial reporting or an attestation reportbased on the criteria set forth in “Internal Control – Integrated Framework (2013)” issued by the Committee of Sponsoring Organizations of the company’s registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.Treadway Commission.

Material Weaknesses in Internal Control Over Financial Reporting.
This Annual ReportBased on Form 20-F does not include a reportthis assessment, our management concluded that, as of management’s assessment regardingDecember 31, 2019, our internal control over financial reporting orwas effective.
Attestation Report of the Registered Public Accounting Firm
This Annual Report does not include an attestation report of our registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.
In connection with the preparation for the initial public offering of our ADSs, we reassessed our critical accounting policies to ensure compliance with IFRS. As part of this reassessment, we identified errors relating to the recognition of assumed liabilities and goodwill in connection with the acquisition of Rhinopharma Ltd. in September 2006. We concluded that a lack of adequate controls surrounding our historic accounting for business combinations constituted a material weakness in our internal control over financial reporting, as defined in the standardsan exemption established by the U.S. Public Accounting Oversight Board
We have remediated this material weakness by the hiring of our chief financial officer in September 2016 and enhancing our financial reporting team’s technical accounting knowledge associated with the accounting rulesJOBS Act for business combinations. However, we cannot be certain that these efforts will prevent future material weaknesses or significant deficiencies from occurring.Review updated remediation language.“emerging growth companies.”
Changes in Internal Control Overover Financial Reporting.Reporting
Other than as discussed above, there has beenThere were no changechanges in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the period covered by this annual reportAnnual Report that hashave materially affected, or isare reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A: AUDIT COMMITTEE FINANCIAL EXPERT
Our board of directors has determined that Vikas Sinha, Dr. David Ebsworth and Dr. Andrew Sinclair each qualify as an audit committee financial expert as defined by the rules of the Securities and Exchange CommissionSEC and has the requisite financial sophistication under the applicable rules and regulations of Nasdaq. Mr. Sinha and Drs. Ebsworth and Sinclair are each independent as such term is defined in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, and under the listing standards of Nasdaq.


ITEM 16B: CODE OF ETHICS
Code of Business Conduct and Ethics
We have adopted a Code of Business Conduct and Ethics, or the Code of Conduct, that is applicable to all of our employees, executive officers, including our principal executive, principal financial and principal accounting officers, members of our board of directors, and consultants. The Code of Conduct is available on our website at www.veronapharma.com. We will provide a copy of our Code of Conduct to any person without charge upon written request sent to:
Verona Pharma plc
3 More London Riverside
London SE1 2RE
United Kingdom
Attn: Secretary
We intend to satisfy the disclosure requirement under Item 16B(e)16B(d) and (e) of Form 20-F regarding amendment to, or waiver from, a provision of our Code of Conduct, as well as Nasdaq’s requirement to disclose waivers with respect to directors and executive officers, by posting such information onin the "Investors" section of our website at the address and location specified above.www.veronapharma.com. Our executive officers are responsible for administering the Code of Conduct. Amendment, alteration or termination of the Code of Conduct requires the approval of our board of directors.


ITEM 16C: PRINCIPAL ACCOUNTANT FEES AND SERVICES

The following table summarizes the fees of PricewaterhouseCoopers LLP, our independent registered public accounting firm, billed to us for each of the last two fiscal years for audit and other services:
Fee Category2016
 2017
 £'000s
 £'000s
Audit Fees80
 117
Audit-Related Fees525
 333
Other Services
 150
Total Fees605
 600
Fee Category2019
 2018
 £'000s
 £'000s
Audit Fees148
 114
Audit-Related Fees52
 68
Other Services67
 86
Total Fees267
 268
Audit-Related Fees
For the yearyears ended December 31, 2017,2019 and 2018, audit related services include fees for quarterly interim reviews, advice on compliance with Sarbanes-Oxley legislation and assurance on information included in the Company's U.S. registration statement for the April 2017 initial public offering in the United States (the"Global Offering"). For the year ended December 31, 2017, an amount of £256 thousand in relation to these services was offset against share premium on completion of the Global Offering.
For the year ended December 31, 2016, audit related services include assurance reporting on historical financial information included in the Company's U.S. registration statement for the Global Offering. As at December 31, 2016 an amount of £466 thousand in relation to these services was booked in deferred IPO costs that was offset against share premium on completion of the Global Offering.reviews.
Tax Fees
We did not incur any tax fees for services from PricewaterhouseCoopers LLP in 20162019 or 2017.2018.
All Other Fees
We did not incur anyFor the year ended December 31, 2019 other fees in 2017 or 2016.related to advice relating to fund raising.
For the year ended December 31, 2018, other fees related to a review of the Company’s F-3 shelf registration statement.
Audit Committee Pre-Approval Policy and Procedures
The Audit Committee has adopted a policy, or the Pre-Approval Policy, which sets forth the procedures and conditions pursuant to which audit and non-audit services proposed to be performed by the independent auditor may be pre-approved. The Pre-Approval Policy generally provides that we will not engage PricewaterhouseCoopers LLP to render any audit, audit-related, tax or permissible non-audit service unless the service is either (i) explicitly approved by the Audit Committee, or specific pre-approval, or (ii) entered into pursuant to the pre-approval policies and procedures described in the Pre-Approval Policy, or general pre-approval. Unless a type of service to be provided by PricewaterhouseCoopers LLP has received general pre-approval under the Pre-Approval Policy, it requires specific pre-approval by the Audit Committee or by a designated member of the Audit Committee to whom the committee has delegated the authority to grant pre-approvals. Any proposed services exceeding pre-approved cost levels or budgeted amounts will also require specific pre-approval. For both types of pre-approval, the Audit Committee will consider whether such services are consistent with the SEC’s rules on auditor independence. The Audit Committee will also consider whether the independent auditor is best positioned to provide the most effective and efficient service, for reasons such as its familiarity with our business, people, culture, accounting systems, risk profile and other factors, and whether the service might enhance our ability to manage or control risk or improve audit quality. All such factors will be considered as a whole, and no one factor should necessarily be determinative. The Audit Committee may also review and generally pre-approve the services (and related fee levels or budgeted amounts) that may be provided by PricewaterhouseCoopers LLP without first obtaining specific pre-approval from the Audit Committee. The Audit Committee may revise the list of general pre-approved services from time to time, based on subsequent determinations.


ITEM 16D: EXEMPTIONS FORM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None
ITEM 16E: PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

None

ITEMS 16F: CHANGE IN REGISTRANT'S CERTIFYING ACCOUNTANT
There has been no change in our independent accountant during our two most recent fiscal years.


ITEM 16G: CORPORATE GOVERNANCE
As a “foreign private issuer,” as defined by the SEC, we are permitted to follow home country corporate governance practices, instead of certain corporate governance practices required by Nasdaq for domestic issuers.issuers, with certain exceptions. While we voluntarily follow most Nasdaq corporate governance rules, we follow U.K. corporate governance practices in lieu of Nasdaq corporate governance rules as follows:
We do not follow Nasdaq Rule 5620(c) regarding quorum requirements applicable to meetings of shareholders. Such quorum requirements are not required under English law. In accordance with generally accepted business practice, our articles of association provide alternative quorum requirements that are generally applicable to meetings of shareholders.
We do not follow Nasdaq Rule 5605(b)(2), which requires that independent directors regularly meet in executive session, where only independent directors are present. Our independent directors may choose to meet in executive session at their discretion.

ITEM 16H: MINE SAFETY DISCLOSURE

None

PART III
ITEM 17: FINANCIAL STATEMENTS

We have elected to provide financial statements pursuant to Item 18.

ITEM 18: FINANCIAL STATEMENTS

The financial statements required under this Item 18 are filed as part of this Annual Report beginning on page F-1.F-1.The audit report of PricewaterhouseCoopers LLP, independent registered public accounting firm, is included herein preceding the financial statements.


ITEM 19: EXHIBITS

The Exhibits listed in the Exhibit Index at the end of this Annual Report are filed as Exhibits to this Annual Report.


   Incorporated by Reference to Filings Indicated
       
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
       
       
F-1 333-2171243.1
4/3/2017 
       
20-F001-380672.1
2/27/2018 
       
20-F001-380672.2
2/27/2018 
       
F-1 333-2171244.3
4/3/2017 
       
F-1 333-2171244.4
4/3/2017 
       
    *
F-1 333-21712410.1
4/3/2017 
       
F-1 333-21712410.2
4/3/2017 
       

20-F001-380674.3
3/19/2019 
       
20-F001-380674.3.1
3/19/2019 
       
20-F001-380674.3.2
3/19/2019 
       
    *
       
    *
       

    
*

       
    
*

       
F-1 333-21712410.4
4/3/2017 
       
F-1 333-21712410.5
4/3/2017 
       
20-F001-380674.6
2/27/2018 
       

    *
       
20-F001-380674.3.2
3/19/2019 
       
F-1 333-21712410.8
4/3/2017 
       
F-1 333-21712410.9
4/3/2017 
       
F-1/A 333-21712410.11.1
4/18/2017 
       
F-1/A 333-21712410.11.2
4/18/2017 
       
F-1 333-21712410.12
4/3/2017 
       
F-1 333-21712410.13
4/3/2017 
       
F-1 333-21712410.14
4/3/2017 
       
F-1 333-21712421.1
4/3/2017 
       
    *
       
    *
       
    **
       
    **
       
    *

   Incorporated by Reference to Filings Indicated
    
Exhibit NumberExhibit DescriptionFormFile No.Exhibit No.
Filing dateFiled / Furnished
No.
DateFurnished

1.1Articles of Association, as amended and as currently in effectF-1 333-2171243.1
4/3/2017 
       
Deposit Agreement     *
       
2.2Form of American Depositary Receipt (included in Exhibit 2.1)     *
       
2.3Form of Warrant issued to each of the investors named in Schedule A theretoF-1 333-2171244.3
4/3/2017 
       
2.4Warrant Instrument issued to NPlus1 Singer LLPF-1 333-2171244.4
4/3/2017 
       
4.1Registration Rights Agreement, dated July 29, 2016, by and among Verona Pharma plc and the investors set forth thereinF-1 333-21712410.1
4/3/2017 
       
4.2†Intellectual Property Assignment and Licence Agreement between Vernalis Development Limited and Rhinopharma Limited, as predecessor to Verona Pharma plc, dated February 7, 2005F-1 333-21712410.2
4/3/2017 
       
4.3Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 and related Renewal Agreements dated September 30, 2015 and October 1, 2016F-1 333-21712410.3
4/3/2017 
       
4.3.1Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.1
4/3/2017 
       
4.3.2Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016F-1 333-21712410.3.2
4/3/2017 
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 17, 2014 (exhibit 4.3)     *
       
Renewal Agreement to Lease by and between the Verona Pharma plc and Regus Management (UK) Limited dated October 26, 2016 (exhibits 4.3.1 and 4.3.2)     *
       
4.4#EMI Option SchemeF-1 333-21712410.4
4/3/2017 
       

4.5#Unapproved Share Option Scheme, as amendedF-1 333-21712410.5
4/3/2017 
       
2017 Incentive Award Plan and forms of award agreements thereunder    *
       
4.7#Employment Agreement, dated April 30, 2012, as amended, between Verona Pharma plc and Jan-Anders KarlssonF-1 333-21712410.6
4/3/2017 
       
4.8#Offer Letter, dated December 15, 2014, as amended, between Verona Pharma plc and Kenneth NewmanF-1 333-21712410.7
4/3/2017 
       
4.9#Employment Agreement, dated September 24, 2016, between Verona Pharma plc and Piers John MorganF-1 333-21712410.8
4/3/2017 
       
4.10#Employment Agreement, dated October 1, 2016, between Verona Pharma plc and Claire PollF-1 333-21712410.9
4/3/2017 
       
4.11#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.10
4/3/2017 
       
4.12#Employment Agreement, dated October 1, 2016, as amended, between Verona Pharma plc and Peter SpargoF-1 333-21712410.16
4/3/2017 
       
Employment Agreement, dated May 1, 2017, between Verona Pharma plc and Desiree Luthman[2]    *
       
4.14Form of Indemnification Agreement for board membersF-1/A 333-21712410.11.1
4/18/2017 
       
4.15Form of Indemnification Agreement for executive officersF-1/A 333-21712410.11.2
4/18/2017 
       
4.16Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, OrbiMed Private Investments VI, LP and NPlus1 Singer Advisory LLPF-1 333-21712410.12
4/3/2017 
       
4.17Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Abingworth Bioventures VI LP and NPlus1 Singer Advisory LLPF-1 333-21712410.13
4/3/2017 
       
4.18Relationship Agreement relating to Verona Pharma plc, dated July 29, 2016, by and among the Verona Pharma plc, Vivo Ventures Fund VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. and NPlus1 Singer Advisory LLPF-1 333-21712410.14
4/3/2017 
       
8.1List of SubsidiariesF-1 333-21712410.14
4/3/2017 
       

Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer    *
       
Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer    *
       
Section 1350 Certification of Chief Executive Officer**
Section 1350 Certification of Chief Financial Officer**
Consent of PricewaterhouseCoopers LLP    *
       
101.INS    *
       
101.SCH    *
       
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
101.DEF    *
 
*Filed herewith.
**Furnished herewith.
#Indicates management contract or compensatory plan.
Confidential treatment granted as to portions of the exhibit. Confidential materials omitted and filed separately with the Securities and Exchange Commission.SEC.






SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

VERONA PHARMA PLC
By: /s/ David Zaccardelli
Name: David Zaccardelli, Pharm. D
Title: Chief Executive Officer

Date: February 27, 2020

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
Consolidated financial statements
as of and for the years ended December 31, 2016 and 2017


pwclogo.jpg
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Verona Pharma Plc

Opinion on the Financial Statements

We have audited the accompanying consolidated statementstatements of financial position of Verona Pharma Plc and its subsidiaries (the “Company”) as of December 31, 20172019 and December 31, 20162018, and the related consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 20172019, including the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172019 and December 31, 2016,2018, and the results of theirits operations and theirits cash flows for each of the three years in the period ended December 31, 20172019 in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Change in Accounting Principle

As discussed in Note 2.17 to the consolidated financial statements, the Company changed the manner in
which it accounts for its contingent liability in 2019.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.




/s/ PricewaterhouseCoopers LLP
Reading, United Kingdom
February 27, 20182020


We have served as the Company's auditor since 2015.

PricewaterhouseCoopers LLP, 3 Forbury Place, 23 Forbury Road, Reading, Berkshire, RG1 3JH
T: +44 (0) 118 597 111, F: +44 (0) 1189 383 020, www.pwc.co.uk

PricewaterhouseCoopers LLP is a limited liability partnership registered in England with registered number OC303525. The registered office of
PricewaterhouseCoopers LLP is 1 Embankment Place, London WC2N 6RH. PricewaterhouseCoopers LLP is authorised and regulated by the Financial Conduct Authority for designated investment business.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF FINANCIAL POSITION
AS OF DECEMBER 31, 20162019 AND 20172018
 Notes As of
December 31, 2016
 As of
December 31, 2017
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 1,877
 1,969
Property, plant and equipment13
 14
 16
Total non-current assets  2,332
 2,426
      
Current assets:     
Prepayments and other receivables14
 2,959
 1,810
Current tax receivable  1,067
 5,006
Short term investments3
 
 48,819
Cash and cash equivalents  39,785
 31,443
Total current assets  43,811
 87,078
Total assets  46,143
 89,504
      
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital15
 2,568
 5,251
Share premium  58,526
 118,862
Share-based payment reserve  2,103
 5,022
Accumulated loss  (28,728) (49,254)
Total equity  34,469
 79,881
      
Current liabilities:   
  
Derivative financial instrument19
 7,923
 1,273
Trade and other payables17
 2,823
 7,154
Tax payable—U.S. Operations  126
 169
Total current liabilities  10,872
 8,596
      
Non-current liabilities:     
Assumed contingent obligation18
 802
 875
Deferred income  
 152
Total non-current liabilities  802
 1,027
Total equity and liabilities  46,143
 89,504
 Notes As of
December 31, 2019
 Restated As of
December 31, 2018
   £'000s £'000s
ASSETS     
Non-current assets:     
Goodwill11
 441
 441
Intangible assets12
 2,757
 2,618
Property, plant and equipment13
 43
 21
Right-of-use assets14
 971
 
Total non-current assets  4,212
 3,080
      
Current assets:     
Prepayments and other receivables15
 2,770
 2,463
Current tax receivable  7,396
 4,499
Short term investments  7,823
 44,919
Cash and cash equivalents  22,934
 19,784
Total current assets  40,923
 71,665
Total assets  45,135
 74,745
    
  
EQUITY AND LIABILITIES     
Capital and reserves attributable to equity holders:     
Share capital16
 5,266
 5,266
Share premium  118,862
 118,862
Share-based payment reserve  10,364
 7,923
Accumulated loss  (100,627) (68,633)
Total equity  33,865
 63,418
      
Current liabilities:   
  
Derivative financial instrument18
 895
 2,492
Lease liability14
 460
 
Trade and other payables19
 8,261
 7,733
Total current liabilities  9,616
 10,225
      
Non-current liabilities:     
Assumed contingent liability20
 1,103
 996
Non-current lease liability14
 491
 
Deferred income  60
 106
Total non-current liabilities  1,654
 1,102
Total equity and liabilities  45,135
 74,745
The accompanying notes form an integral part of these consolidated financial statements.


VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF COMPREHENSIVE INCOME
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Notes Year Ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (7,270) (4,522) (23,717)
General and administrative costs  (1,706) (2,498) (6,039)
Operating loss7 (8,976) (7,020) (29,756)
Finance income9 45
 1,841
 7,018
Finance expense9 (73) (794) (2,465)
Loss before taxation  (9,004) (5,973) (25,203)
Taxation — credit10 1,509
 954
 4,706
Loss for the year  (7,495) (5,019) (20,497)
Other comprehensive income / (loss) :       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  4
 43
 (29)
Total comprehensive loss attributable to owners of the Company  (7,491) (4,976) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (37.1) (15.0) (23.4)

 Notes Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year Ended December 31, 2017
   £'000s £'000s £'000s
Research and development costs  (33,476) (19,294) (23,717)
General and administrative costs  (7,607) (6,297) (6,039)
Operating loss7 (41,083) (25,591) (29,756)
Finance income9 2,351
 2,783
 7,018
Finance expense9 (474) (1,325) (2,465)
Loss before taxation  (39,206) (24,133) (25,203)
Taxation — credit10 7,265
 4,232
 4,706
Loss for the year  (31,941) (19,901) (20,497)
Other comprehensive income / (loss):       
Items that might be subsequently reclassified to profit or loss       
Exchange differences on translating foreign operations  (33) 38
 (29)
Total comprehensive loss attributable to owners of the Company  (31,974) (19,863) (20,526)
Loss per ordinary share — basic and diluted (pence)5 (30.3) (18.9) (23.4)
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2015, 2016 AND 2017
 Year ended December 31, 2015 Year ended
December 31, 2016
 Year ended
December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(9,004) (5,973) (25,203)
Finance income(45) (1,841) (7,018)
Finance expense73
 794
 2,465
Share-based payment charge399
 577
 2,919
Decrease / (increase) in prepayments and other receivables59
 (1,809) (161)
Increase in trade and other payables1,274
 1,068
 5,363
Depreciation of property, plant and equipment10
 10
 7
Loss on disposal of property, plant and equipment
 3
 
Loss on disposal of intangible assets135
 
 
Amortization of intangible assets43
 52
 116
Cash used in operating activities(7,056) (7,119) (21,512)
Cash inflow from taxation700
 1,533
 816
Net cash used in operating activities(6,356) (5,586) (20,696)
Cash flow from investing activities:     
Interest received51
 87
 128
Purchase of plant and equipment(1) (13) (9)
Payment for patents and computer software(142) (115) (208)
Transfer to short term investments
 
 (54,465)
Maturity of short term investments
 
 5,085
Net cash used in investing activities(92) (41) (49,469)
Cash flow from financing activities:     
Gross proceeds from issue of shares and warrants
 44,750
 
Gross proceeds from the April 2017 Global Offering  
 70,032
Transaction costs on issue of shares and warrants
 (2,910) 
Transaction costs on April 2017 Global Offering
 (636) (6,786)
Net cash generated from financing activities
 41,204
 63,246
Net (decrease) / increase in cash and cash equivalents(6,448) 35,577
 (6,919)
Cash and cash equivalents at the beginning of the year9,968
 3,524
 39,785
Effect of exchange rates on cash and cash equivalents4
 684
 (1,423)
Cash and cash equivalents at the end of the period3,524
 39,785
 31,443

The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTSTATEMENTS OF CHANGES IN EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2015, 20162019, 2018 AND 2017
 Share
Capital
 Share
Premium
 Share-based
Expenses
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 20151,010
 26,650
 1,127
 (16,261) 12,526
Loss for the year
 
 
 (7,495) (7,495)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 4
 4
Total comprehensive loss for the period
 
 
 (7,491) (7,491)
Share-based payments
 
 399
 
 399
Balance at December 31, 20151,010
 26,650
 1,526
 (23,752) 5,434
Balance at January 1, 20161,010
 26,650
 1,526
 (23,752) 5,434
Loss for the year
 
 
 (5,019) (5,019)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 43
 43
Total comprehensive loss for the period
 
 
 (4,976) (4,976)
New share capital issued1,556
 34,151
 
 
 35,707
Transaction costs on share capital issued
 (2,325) 
 
 (2,325)
Share options exercised during the period2
 50
 
 
 52
Share-based payments
 
 577
 
 577
Balance at December 31, 20162,568

58,526

2,103

(28,728)
34,469
Balance at January 1, 20172,568
 58,526
 2,103
 (28,728) 34,469
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the period
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the period6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 20175,251

118,862

5,022

(49,254)
79,881
 Share
Capital
 Share
Premium
 Share-based Payment
Reserve
 Total
Accumulated
Losses
 Total
Equity
 £'000s £'000s £'000s £'000s £'000s
Balance at January 1, 2017, as previously reported2,568
 58,526
 2,103
 (28,728) 34,469
Impact of change in accounting policy
 
 
 484
 484
Balance at January 1, 2017 (Restated)2,568
 58,526
 2,103
 (28,244) 34,953
Loss for the year
 
 
 (20,497) (20,497)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (29) (29)
Total comprehensive loss for the year
 
 
 (20,526) (20,526)
New share capital issued2,677
 67,648
 
 
 70,325
Transaction costs on share capital issued
 (7,453) 
 
 (7,453)
Share options exercised during the year6
 141
 
 
 147
Share-based payments
 
 2,919
 
 2,919
Balance at December 31, 2017 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Balance at January 1, 2018 (Restated)5,251
 118,862
 5,022
 (48,770) 80,365
Loss for the year
 
 
 (19,901) (19,901)
Other comprehensive income for the year:         
Exchange differences on translating foreign operations
 
 
 38
 38
Total comprehensive loss for the year
 
 
 (19,863) (19,863)
New share capital issued15
 
 
 
 15
Share-based payments
 
 2,901
 
 2,901
Balance at December 31, 2018 (Restated)5,266
 118,862

7,923

(68,633)
63,418
Balance at January 1, 20195,266
 118,862
 7,923
 (68,633) 63,418
Impact of change in accounting policy
 
 
 (20) (20)
Adjusted Balance at January 1, 20195,266
 118,862
 7,923
 (68,653) 63,398
Loss for the year
 
 
 (31,941) (31,941)
Other comprehensive loss for the year:         
Exchange differences on translating foreign operations
 
 
 (33) (33)
Total comprehensive loss for the year
 
 
 (31,974) (31,974)
Share-based payments
 
 2,441
 
 2,441
Balance at December 31, 20195,266

118,862

10,364

(100,627)
33,865
The currency translation reserve for 2015, 20162019, 2018, and 2017, is not considered material and as such is not presented in a separate reserve but is included in the total accumulated losses reserve.
The accompanying notes form an integral part of these consolidated financial statements.

VERONA PHARMA PLC
CONSOLIDATED STATEMENTS OF CASH FLOWS
FOR THE YEARS ENDED DECEMBER 31, 2019, 2018 AND 2017
 Year ended
December 31, 2019
 Year ended
December 31, 2018
 Year ended December 31, 2017
 £'000s £'000s £'000s
Cash used in operating activities:     
Loss before taxation(39,206) (24,133) (25,203)
Finance income(2,351) (2,783) (7,018)
Finance expense474
 1,325
 2,465
Share-based payment charge2,441
 2,901
 2,919
Increase in prepayments and other receivables(484) (640) (161)
Increase in trade and other payables449
 531
 5,363
Depreciation of property, plant, equipment and right of use asset398
 8
 7
Unrealised FX gains/ losses(8) 
 
Amortization of intangible assets106
 90
 116
Cash used in operating activities(38,181) (22,701) (21,512)
Cash inflow from taxation4,361
 4,590
 816
Net cash used in operating activities(33,820) (18,111) (20,696)
Cash flow from investing activities:     
Interest received887
 883
 128
Purchase of plant and equipment(38) (13) (9)
Payment for patents and computer software(244) (255) (208)
Purchase of short term investments(7,940) (59,700) (54,465)
Maturity of short term investments45,134
 64,366
 5,085
Net cash generated from / (used in) investing activities37,799
 5,281
 (49,469)
Cash flow used in financing activities:     
Gross proceeds from the April 2017 Global Offering
 
 70,032
Transaction costs on April 2017 Global Offering
 
 (6,786)
Repayment of finance lease liabilities(426) 
 
Net cash (used in) / generated from financing activities(426) 
 63,246
Net increase / (decrease) in cash and cash equivalents3,553
 (12,830) (6,919)
Cash and cash equivalents at the beginning of the year19,784
 31,443
 39,785
Effect of exchange rates on cash and cash equivalents(403) 1,171
 (1,423)
Cash and cash equivalents at the end of the year22,934
 19,784
 31,443



123

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019



1. General information
Verona Pharma plc and its subsidiaries (the "Company") are a clinical-stage biopharmaceutical group focused on developing and commercializing innovative therapeutics for the treatment of respiratory diseases with significant unmet medical needs.
The Company is a public limited company, which is dual listed on the Alternative Investment MarketAIM, a market of the London Stock Exchange, and on April 27, 2017, American Depositary Shares began trading onThe Nasdaq Global Market.Market ("Nasdaq"). The company is incorporated and domiciled in the United Kingdom. The address of the registered office is 1 Central Square, Cardiff, CF10 1FS, United Kingdom.
The Company has two subsidiaries, Verona Pharma Inc. and Rhinopharma Limited ("Rhinopharma"), both of which are wholly owned.
On February 10, 2017 theThe Company effected a 50-for-1 consolidation oflisted its shares. All references to ordinary shares, options and warrants, as well as share, per share and related information in these consolidated financial statements have been adjusted to reflect the consolidation as if it had occurred at the beginning of the earliest period presented.

On April 26, 2017, the Company announced the closing of its global offering of an aggregate of 47,399,001 new ordinary shares, consisting of the initial public offering in the United States of 5,768,000 American Depositary Shares (“ADSs”("ADS") at a price of $13.50 per ADS and on Nasdaq in April 2017 ("the private placement in Europe of 1,255,001 ordinary shares at a price of £1.32 per ordinary share, for gross proceeds of $80 million (the “Global Offering”2017 Global Offering"). Each ADS offered represents eight ordinary shares of the Company. The ordinary shares offered were allotted and issued in a concurrent private placement in Europe and other countries outside of the United States and Canada.
In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in a shareholder private placement separate from the Global Offering (the “Shareholder Private Placement”), contingent on and concurrent with the Global Offering and generating additional gross proceeds of £0.3 million.
On May 15 and May 23, 2017, pursuant to the Global Offering, the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS, for additional gross proceeds of $9.9 million bringing the total gross proceeds in the Global Offering to $89.9 million (£70.0 million). Including the Shareholder Private Placement, the total gross proceeds of the capital raising amounted to $90.3 million (£70.3 million).
The ADSs began tradingtrade on theThe Nasdaq Global Market under the ticker symbol “VRNA” on April 27, 2017.and Verona Pharma’s ordinary shares continue to trade on the AIM market of the London Stock Exchange (“AIM”) under the symbol “VRP”.


F-7124

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

2. Accounting policies
A summary of the principal accounting policies, all of which have been applied consistently throughout the year, is set out below.
2.1  Basis of preparation
The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRSs") as issued by the International Accounting Standards Board and IFRS Interpretations Committee and with the Companies Act 2006 applicable to companies reporting under IFRS.
The consolidated financial statements have been prepared under the historical cost convention, with the exception of derivative financial instruments which have been measured at fair value.
The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires management to exercise its judgementjudgment in the process of applying the Company's accounting policies. The areas involving a higher degree of judgementjudgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in note 4.
Going concern
DuringThe Company has incurred recurring losses since inception, including net losses of £31.9 million, £19.9 million and £20.5 million for the yearyears ended December 31, 2019, 2018 and 2017, respectively. In addition, as of December 31, 2019, the Company had aan accumulated loss of £20.5 million (2016: £5.0 million).£100.6 million. The Company expects to continue to generate operating losses for the foreseeable future. As of December 31, 2017,the issuance date of the annual consolidated financial statements, the Company had net assets of £79.9 million (2016: £34.5 million) of which £80.3 million (2016: £39.8 million) wasexpects that its cash and cash equivalents, would be sufficient to fund its operating expenses and short term investments.
The operation of the Company is currently being financed from funds that the Company raised from share placings. On May 2nd, 2017, the company raised $89.9 million (£70 million) from the initial public offering in the United States. On July 29, 2016, the Company raised gross proceeds of £44.7 million from a placing, subscription and open offer (the "July 2016 Placement"). These funds are expected to be used primarily to support the development of RPL554 in chronic obstructive pulmonary disease ("COPD"), other chronic respiratory diseases as well as corporate and general administrative expenditures.
The Directors believe that the Company has sufficient funds to complete the current clinical trials, to cover corporate and general administration costs and for it to comply with all commitmentscapital expenditure requirements for at least 12 months from the endissuance date of these annual consolidated financial statements. Accordingly, the reporting periodconsolidated financial statements have been prepared on a basis that assumes the Company will continue as a going concern and accordingly, are satisfiedwhich contemplates the realization of assets and satisfaction of liabilities and commitments in the ordinary course of business.
The Company intends to initiate its Phase 3 program for the maintenance treatment of COPD once it believes it has alignment with the FDA on its planned design for the Phase 3 clinical program. The Company will require significant additional funding to initiate and complete this Phase 3 program and will need to secure the required capital to fund the program.   The Company will seek additional funding through public or private financings, debt financing, collaboration or licensing agreements and other arrangements.  However, there is no guarantee that the going concern basis remains appropriate forCompany will be successful in securing additional finance on acceptable terms, or at all, and should the preparationCompany be unable to raise sufficient additional funds it will be required to defer the initiation of these consolidatedPhase 3 clinical trials, until such funding can be obtained. This could also force the Company to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or commercialization efforts, or pursue alternative development strategies that differ significantly from its current strategy, which could have a material adverse effect on the Company’s business, results of operations and financial statements.condition.
Business combination
The Company applies the acquisition method to account for business combinations. The consideration transferred for the acquisition of a subsidiary is the fair value of the assets transferred, the liabilities incurred to the former owners of the acquiree and the equity interests issued by the Company. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement and the fair value of any pre-existing equity interest in the subsidiary.arrangement. The excess of the cost of acquisition over the fair value of the Company's share of the identifiable net assets acquired is recorded as goodwill. Goodwill arising on acquisitions is capitalized and is subject to an impairment review, both annually and when there are indications that the carrying value may not be recoverable.
Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. Acquisition-related costs are expensed as incurred and included in administrative expenses.

125

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Basis of consolidation
These consolidated financial statements include the accountsfinancial statements of Verona Pharma plc and its wholly owned subsidiaries Verona Pharma, Inc. and Rhinopharma. The acquisition method of accounting was used to account for the acquisition of Rhinopharma.

F-8

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Inter-company transactions, balances and unrealized gains on transactions between group companies are eliminated.
Verona Pharma Inc. and Rhinopharma adopt the same accounting policies as the Company.
2.2  Foreign currency translation
Items included in the Company's consolidated financial statements are measured using the currency of the primary economic environment in which the Entityentity operates ("the functional currency"). The consolidated financial statements are presented in pounds sterling ("£"), which is the functional and presentational currency of the Company and the presentational currency of the Company.
Transactions in foreign currencies are recorded using the rate of exchange ruling at the date of the transaction. Monetary assets and liabilities denominated in foreign currencies are translated using the rate of exchange ruling at the balance sheet date and the gains or losses on translation are included in the Consolidated Statement of Comprehensive Income. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the exchange rates at the dates of the original transactions. Non-monetary items measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined.
The assets and liabilities of foreign operations are translated into pounds sterling at the rate of exchange ruling at the balance sheet date. Income and expenses are translated at weighted average exchange rates for the period. The exchange differences arising on translation for consolidation are recognized in Other Comprehensive Income.
2.3  Cash and cash equivalents
Cash and cash equivalents includes cash in hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less.
2.4  Deferred taxation
Deferred tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred tax is determined using tax rates (and laws)and laws that have been enacted or substantially enacted by the balance sheet date and expected to apply when the related deferred tax is realized or the deferred liability is settled.
Deferred tax assets are recognized to the extent that it is probable that the future taxable profit will be available against which the temporary differences can be utilized.
2.5  Research and development costs
Capitalization of expenditure on product development commences from the point at which technical feasibility and commercial viability of the product can be demonstrated and the Company is satisfied that it is probable that future economic benefits will result from the product once completed. No such costs have been capitalized to date, given the early stage of the Company's product candidate development.date.
Expenditure on research and development activities that do not meet the above criteria is charged to the Consolidated Statement of Comprehensive Income as incurred.

126

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.6  Property, plant and equipment
Property, plant and equipment are stated at cost, net of depreciation and any provision for impairment. Cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is calculated so as to write off the cost less their estimated residual

F-9

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

values, on a straight-line basis over the expected useful economic lives of the assets concerned. The principal annual periods used for this purpose are:
Computer hardware3 years
Office equipment5 years
2.7  Intangible assets and goodwill
(a)Goodwill
Goodwill arises on the acquisition of subsidiaries and represents the excess of the consideration transferred over the fair value of the identifiable net assets acquired.
(b)Patents
Patent costs associated with the preparation, filing, and obtaining of patents are capitalized and amortized on a straight-line basis over the estimated useful lives of the patents of ten years.
(c)Computer software
Amortization is calculated so as to write off the cost less estimated residual values, on a straight-line basis over the expected useful economic life of two years.
(d)In-process research & development ("IPRIP R&D")
The IP R&D assetsasset acquired through a business combinations which, at the time of acquisition, havecombination, that had not reached technical feasibility, arewas initially recognized at fair value. Subsequent movements in the assumed contingent liability (see 2.12) that relate to changes in estimated cashflows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. There were no changes in estimated cashflows or probabilities of success in the years ended 31 December, 2019, or 2018.
This is a change in accounting policy as prior to January 1, 2019, movements in the assumed contingent liability were taken to the Statement of Comprehensive Income (see note 2.17). As a result of the change in accounting policy £484 thousand was restated from Accumulated Loss to the IP R&D asset.
The amounts are capitalized and are not amortized but areasset is subject to impairment testing until completion, abandonment of the projectsproject or when the research findings are commercialized through a revenue generating project. The Company determines whether intangible assets (including goodwill) are impaired on an annual basis and this requires the estimationor when there is an indication of the higher of fair value less costs of disposal and value in use. Upon successful completion or commercialization of the relevant project, IP R&D will be reclassified to developed technology. The Company will make a determination as to the then useful life of the developed technology, generally determined by the period in which the substantial majority of the cash flows are expected to be generated, and begin amortization. In case of abandonment the asset will be impaired.
2.8  Impairment of intangible assets, goodwill and non-financial assets
Goodwill and intangible assets that have an indefinite useful life and intangible assets not ready to use are not subject to amortization. These assets are tested annually for impairment or more frequently if impairment indicators exist. Non-financial assets that are subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is recognized for the amount by which the asset's carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset's fair value (less costs of disposal) and value in use.
For the purpose of assessing impairment, assets are grouped at the lowest levels for which there are separately identifiable cash flows, which are largely independent of the cash flows from other assets or group of assets (cash generating units "CGUs").
Goodwill is allocated to CGUs for the purpose of impairment testing. The allocation is made to those CGUs or groups of CGUs that are expected to benefit from the business combination in which the goodwill arose. The units or group of units are identified at the lowest level at which goodwill is monitored for internal management purposes, being the operating segments.
The Company is a single cash generating unit. Goodwill that arose on the acquisition of Rhinopharma has been thus allocated to this single CGU. IP R&D is tested for impairment at this level as well, since it is the lowest level at which independent cash flows can be identified.impairment.

F-10127

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)

Non-financial2.8  Impairment of intangible assets, othergoodwill and non-financial assets
The Company holds intangible assets relating to acquired IP R&D, patent costs and goodwill. Goodwill and intangible assets are tested annually for impairment or if there is an indication of impairment. The Company is a single cash generating unit ("CGU") so all intangibles are allocated to the Company as one CGU.
As at 31 December, 2019, and 2018 the Company carried out impairment reviews with reference to its market capitalization. At points during the year ended 31 December 2019, the Company's market capitalization was less than goodwill,its net assets. As a result, the Company carried out an impairment review by forecasting expected sales of ensifentrine, delivered by nebulizer for the maintenance treatment of chronic COPD, and associated costs. This cashflow forecast was then discounted to its net present value to demonstrate that have been previously impaired are reviewed for possible reversalthe value in use of the impairment at each subsequent reporting date.ensifentrine was greater than the Company's net assets. The Company was required to make various estimates and assumptions as inputs for this model including, but not limited to:
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
costs of the Company's overhead;
size and make up of a sales force;
probabilities of success; and
discount rate.

2.9  Employee Benefits
(a)Pension
(a)    Pension
The Company operates a defined contribution pension schemeschemes for UKits employees. Contributions payable for the year are charged to the Consolidated Statement of Comprehensive Income. The contributions are recognized as employee benefit expense when they are due. Differences between contributions payable in the year and contributions actually paid are shown as either accruals or prepayments in the Consolidated Statement of Financial Position. The Company has no further payment obligationliability once the contributions have been paid.
(b)Bonus plans
(b)    Bonus plans
The Company recognizes a liability and an expense for bonus plans if contractually obligated or if there is a past practice that has created a constructive obligation.liability.
2.10  Share-based payments
The Company operates a number of equity-settled, share-based compensation schemes. The fair value of share-basedshare based payments under such schemes is expensed on a straight-line basis over the vesting period, based on the Company's estimate of shares that will eventually vest.
Where equity settled transactions are entered into with third party service providers, fair value is determined by reference to the value of the services provided in lieu of payment. The expense is measured based on the services received at the date of receipt of those services and is charged to the Consolidated Statement of Comprehensive Income over the period for which the services are received and a corresponding credit is made to reserves. For other equity-settled transactions fair value is determined using the Black-Scholes model and requires several assumptions and estimates as disclosed in note 16.17.
The fair value of share-based payments under these schemes is expensed on a straight-line basis over the share based payments' vesting periods, based on the Company's estimate of shares that will eventually vest.

128

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.11  Provisions
Provisions are recognized when the Company has a present legal or constructive obligationliability as a result of past events, it is probable that an outflow of resources will be required to settle the obligation,liability, and the amount can be reliably estimated. Provisions are measured at the present value of the expenditures expected to be required to settle the obligationliability using a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the obligation.liability.
2.12  Assumed contingent obligationliability related to the business combinationscombination
On September 19,In 2006 the Company acquired Rhinopharma for a total consideration of £1.52 million payable in ordinary shares. In addition, the Companyand assumed certain contingent obligationsliabilities owed by Rhinopharma to Vernalis under anPharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. (“Ligand”). The Company refers to the assignment and license agreement (the "assumed contingent consideration") followingas the sale of IP by Vernalis to Rhinopharma. Pursuant to the agreement Vernalis (i)Ligand Agreement.
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to RPL554ensifentrine and related compounds (the "Vernalis"Ligand Patents") and (ii) granted to the Company an exclusive, worldwide, royalty-bearing license under certain VernalisLigand know-how to develop, manufacture and commercialize products (the "Licensed Products") developed using VernalisLigand Patents, VernalisLigand know-how and the physical stock of certain compounds.
The assumed contingent obligationliability comprises (a) a milestone payment on obtaining the first approval of any regulatory authority for the commercialization of a Licensed Product; (b)Product, low to mid singlemid-single digit royalties based on the future sales performance of all Licensed Products;Products and (c) a portion equal to a midtwentymid-twenty percent of any consideration received from any sub-licensees for the VernalisLigand Patents and for VernalisLigand know-how. On the date of

F-11

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

acquisition theThe liability was initially recognized at fair value of theand subsequently measured at amortized cost. The assumed contingent obligation wasliability is estimated as the expected value of the milestone payment and royalty payments and sub-license payments,payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement was thenis discounted back to its net present value applying an effective interest rate of 12%. The initial fair value of the assumed contingent obligation as of December 31, 2006 was deemed to be insignificant at the date of the acquisition, so it was not recorded.

The amount of royaltiesRoyalties payable under the agreement isare based on the future sales performance of certain products, and so the total amount payable is unlimited. The level of salesSales that may be achieved under the
agreement isare difficult to predict and subject to estimate, which is inherently uncertain.
The value of this assumed contingent obligationliability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes. The assumed contingent obligation is accounted for as a liability,
Remeasurements relating to changes in estimated cash flows and any adjustments made to the valueprobabilities of the liability will besuccess are recognized in the Consolidated Statement of Comprehensive IncomeIP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the period.

year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
2.13  Government and other grants
The Company may receive government, regional or charitable grants to support its research efforts in defined projects where these grants provide for reimbursement of approved costs incurred as defined in the respective grants. Income in respect of such grants would include contributions towards the costs of research and development. Income would be recognized when costs under each grant are incurred in accordance with the terms and conditions of the grant and the collectability of the receivable is reasonably assured. Government, regional and charitable grants relating to costs would be deferred and recognized in the Consolidated Statement of Comprehensive Income over the period necessary to match them with the costs they are intended to compensate. When the cash in relation to recognized government, regional or charitable grants is not yet received the amount is included as a receivable on the Consolidated Statement of Financial Position.
Where the grant income is directly related to the specific items of expenditure incurred, the income would be netted against such expenditure. Where the grant income is not a specific reimbursement of expenditure incurred, the Company would include such income under "Other income" in the Consolidated Statement of Comprehensive Income. Grants or investment credits may be repayable if the Company successfully commercializes a relevant program that was funded in whole or in part by the grant or investment credit within a particular timeframe. Prior to successful commercialization, the Company would not make any provision for repayment.
2.14  Financial instruments — initial recognition and subsequent measurement
The Company classifies a financial instrument, or its component parts, as a financial liability, a financial asset or an equity instrument in accordance with the substance of the contractual arrangement and the definitions of a financial liability, a financial asset and an equity instrument.
The Company evaluates the terms of the financial instrument to determine whether it contains an asset, a liability or an equity component. Such components shall be classified separately as financial assets, financial liabilities or equity instruments.
A financial instrument is any contract that gives rise to a financial asset of one entity and a financial liability or equity instrument of another entity.
(a)Financial assets, initial recognition and measurement and subsequent measurement
AllThe Company has no financial assets not recorded at fair value through profit or loss such as receivables and deposits,("FVPTL"). All assets are initially recognized initially at fair value plus transaction costs. costs and subsequently measured at amortized cost using the effective interest method.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement

Financial assets carriedliabilities are classified as measured at fair value through profitamortized cost or loss are initially recognized at fair value, and transaction costs are expensed in the income statement.FVTPL.

F-12129

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Accounting policies (Continued)


The measurement of financial assets depends on their classification. Financial assets suchCompany's warrants are classified as receivablesFVTPL and deposits are subsequently measured at amortized cost. The Company does not hold any financial assets at fair value throughgains and losses are recognized in profit or loss or available for sale financial assets.loss.
(b)Financial liabilities, initial recognition and measurement and subsequent measurement
Financial liabilities are classified, at initial recognition, as financial liabilities at fair value through profit or loss, loans and borrowings, or payables, as appropriate. All
Other financial liabilities are initially recognized initially at fair value and in the case of loans and borrowings and payables, net of directly attributable transaction costs.
The measurement of financial assets and financial liabilities depends on their classification. Financial liabilities at fair value through profit or loss include financial liabilities held for trading and financial liabilities designated upon initial recognition as at fair value through profit or loss. These are subsequently measured at fair value with any gains or losses recognized in profit or loss. All other financial liabilities are measured at amortized cost using the effective interest methodmethod. Interest expense and foreign exchange gains and losses are recognized in profit or loss. Any gain or loss on derecognition is also recognized in profit or loss.
The Company's financial liabilities include trade and other payables, the Company's warrants and derivative financial instruments.the assumed contingent liability.
(c)    Derivative financial instruments
Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently re-measured at fair value at the end of each reporting date. The Company holds only one type of derivative financial instrument, the warrants, as explained in Note 2.15.2.14.
The full fair value of the derivative is classified as a non-current liability when the warrants are exercisable in more than 12 months and as a current liability when the warrants are exercisable in less than 12 months.
Changes in fair value of a derivative financial liability when related to a financing arrangement are recognized in the Consolidated Statement of Comprehensive Income within Finance incomeIncome or Finance expense. Fair value gains or losses on derivatives used for non-financing arrangements are recognized in other operating income or expense.Expense.

130

2.15  Warrants
VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

2.14  Derivative financial instrument - warrants
Warrants issued by the Company to investors as part of a share subscription are compound financial instruments where the warrant meets the definition of a financial liability.
The financial liability component is initially measured at fair value in the Consolidated Statement of Financial Position. Equity is measured at the residual between the subscription price for the entire instrument and the liability component. The financial liability component is remeasured depending on its classification.remeasured. Equity is not remeasured.
2.162.15  Short Term Investments
Short term investments include fixed term deposits held at banks with original maturities of more thanbetween three months but less thanand a year. They are classified as loans and receivables and are measured at amortized cost using the effective interest method.

2.172.16  Transaction costs
Qualifying transaction costs might be incurred in anticipation of an issuance of equity instruments and may cross reporting periods. The entity defers these costs on the balance sheet until the equity instrument is recognized. Deferred costs are subsequently reclassified as a deduction from equity when the equity instruments are recognized, as the costs are directly attributable to the equity transaction. If the equity instruments are not subsequently issued, the transaction costs are expensed. Any costs not directly attributable to the equity transaction are expensed.

F-13

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Accounting policies (Continued)

Transaction costs that relate to the issue of a compound financial instrument are allocated to the liability and equity components of the instrument in proportion to the allocation of proceeds. Where the liability component is held at fair value through profit or loss, the transaction costs are expensed to the Consolidated Statement of Comprehensive Income. For liabilities held at amortized cost, transaction costs are deducted from the liability and subsequently amortized. The amount of transaction costs accounted for as a deduction from equity in the period is disclosed separately in accordance with International Accounting Standard (“IAS 1.1”).
2.17  Changes in accounting policy
Accounting for the assumed contingent liability
As discussed in note 2.12, in 2006 the Company acquired Rhinopharma and assumed contingent liabilities owed to Vernalis Pharmaceuticals Limited which was subsequently acquired by Ligand Pharmaceuticals, Inc. ("Ligand").
Ligand assigned to the Company all of its rights to certain patents and patent applications relating to ensifentrine and related compounds and an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize products. The assumed contingent liability comprises a milestone payment on obtaining the first approval of any regulatory authority and royalties based on the future sales of ensifentrine.
The initial fair value of the assumed contingent liability was estimated as the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, an assessment of the probability of success using standard market probabilities for respiratory drug development discounted to net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.
Up to the year ended December 31, 2018, movements in the liability relating to re-measurements of cash flows or changes in the probabilities of success were taken to the Consolidated Statement of Comprehensive Income. During the year ended December 31, 2019, the Company reviewed the accounting for this item and has determined that these movements in the liability will now be recognized in the cost of the corresponding asset. The corresponding asset is the intangible IP R&D asset.

131

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

The Company believes that this change in accounting policy results in the Consolidated Financial Statements providing a more relevant and reliable view of its financial position and performance because without an adjustment to the IP R&D asset on the re-measurement of the liability, the cost of the asset would not be fairly reflected on the Consolidated Statement of Financial Position. The Consolidated Statement of Financial Position more faithfully represents the financial position of the Company if the intangible asset is adjusted by any re-measurement of the liability for changes in estimated cash flows, to give a fairer reflection of the cost of the intangible asset.
The Company has reviewed the International Financial Reporting Interpretations Committee ("IFRIC") discussion of accounting for variable payments made for the purchase of an intangible asset that is not part of a business combination that concluded that it was too broad for it to address within the confines of existing IFRS standards. As a result, practice in this area is mixed and many pharmaceutical companies follow a cost accumulation model. The Company also noted that adjusting the cost of the asset when a liability is remeasured for changes in estimated cash flows is consistent with the guidance in IFRIC 1 for decommissioning liabilities and IFRS 16 for lease liabilities.   
There were no such re-measurements of the liability in the years ended December 31, 2019, 2018 and 2017. Movements in the liability in these periods related to the unwinding of the discount and movements in exchange rates.
IAS 8 requires opening balance of each affected component of equity to be adjusted for the earliest prior period presented and the other comparative amounts disclosed for each prior period presented as if the new accounting policy had always been applied.
The impact to the Group, therefore, is the restatement of £484 thousand from Accumulated Loss to the IP R&D asset, which relates to re-measurements recorded prior to January 1, 2017. As there were no re-measurements in the years ended December 31, 2019, 2018 and 2017 the £484 thousand adjustment is the same at each reporting period.
The following table is a summary of the restatement:

Financial statement line item As reported Adjustment for the change in accounting policy As adjusted
January 1, 2017 £'000s £'000s £'000s
       
Accumulated loss 28,728
 (484) 28,244
Intangible assets - IP R&D 1,469
 484
 1,953
This adjustment also increases non-current assets, total assets and total equity by £484 thousand in each of the years presented.
Adoption of IFRS 16
IFRS 16 ‘Leases’ is effective for accounting periods beginning on or after January 1, 2019 and replaces IAS 17 ‘Leases’. It eliminates the classification of leases as either operating leases or finance leases and, instead, introduces a single lessee accounting model. The adoption of IFRS 16 resulted in the Group recognizing lease liabilities within current liabilities, and corresponding right-of-use assets.
The Group’s principal lease arrangements are for office space. The Group has adopted IFRS 16 retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings at January 1, 2019. The standard permits a choice on initial adoption, on a lease-by-lease basis, to measure the right-of-use asset at either its carrying amount as if IFRS 16 had been applied since the commencement of the lease, or an amount equal to the lease liability, adjusted for any accrued or prepaid lease payments as at the time of adoption. The Group has elected to measure the right-of-use asset at its carrying value as if IFRS 16 had been applied since the commencement of the lease, with the result of a £20 thousand reduction in opening total accumulated losses.

132

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
Accounting policies (Continued)

Initial adoption resulted in the recognition of right-of-use assets of £326 thousand and lease liabilities of £316 thousand.
£'000s
Lease commitments (including prepayments) disclosed as at December 31, 2018600
Less: adjustments relating to prepaid lease payments(28)
Lease commitments as at December 31, 2018572
Discounted using the group’s incremental borrowing rate526
Less: short-term leases recognized on a straight-line basis as expense(210)
Lease liability recognized as at January 1, 2019316
In applying IFRS 16 for the first time, the group has used the following practical expedients permitted by the standard:
the use of a single discount rate of 8% to a portfolio of leases with reasonably similar characteristics;
accounting for leases with a remaining lease term of less than 12 months as at January 1, 2019, as short-term leases; and
the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease.
The Company is applying IFRS 16’s low-value and short-term exemptions. The adoption of IFRS 16 has had no impact on the Group’s net cash flows, although a presentation change has been reflected in 2019 whereby cash outflows of £426 thousand are now presented as financing, instead of operating. General and administrative costs are £123 thousand lower than if IFRS 16 not been adopted, as depreciation of the right of use asset is less than the lease costs. There is a £50 thousand increase in finance expense from the presentation of a portion of lease costs as interest costs. There is no significant impact on overall loss before tax and loss per share.
At the time of adoption it was not reasonably certain that the Company would extend the leases. However, in the period the Company determined that this was the case and agreed extensions. As a result it recognized an additional liability and right-of-use asset of £1,047 thousand.
2.18  New standards, amendments and interpretations adopted by the Company
The following amendments havestandard has been adopted by the Company for the first time for the financial year beginning on or after January 1, January, 2017. It did not materially impact the Company’s results:2019:

· Annual Improvements to IFRS Standards 2014-2016 Cycle,
· Disclosure initiative - amendments to IAS 7, and
· Recognition of Deferred Tax Assets for Unrealized Losses - Amendments to IAS 12.

IFRS 16 "Leases"
The amendments to IAS 7 require disclosure of changes in liabilities arising from financing activities, seeCompany adopted IFRS 16 on January 1, 2019, and, as a consequence, changed its accounting policies. See note 3.3.

2.17.
2.19  New standards, amendments and interpretations issued but not effective for the financial year beginning January 1, 20172019 and not early adopted
A number of newThere are no IFRS standards and amendments to standards andor interpretations have been issued but are not yet effective for annual periods beginning after January 1, 2017 (noted below), andthat would be expected to have not been adopted in preparing these consolidated financial statements.
IFRS 9 "Financial instruments" (effective for annual periods beginning on or after January 1, 2018)
IFRS 15 "Revenue from contracts with customers" (effective for annual periods beginning on or after January 1, 2018
IFRS 16 "Leases" (effective for annual periods beginning on or after January 1, 2019)
IFRS 9 will have noa material impact on the accounting or measurement of any of the financial instruments the Company currently holds.
IFRS 15 will have no impact on the financial statements of the Company as it is not currently revenue generating.
IFRS 16 is effective for accounting periods beginning on or after 1 January 2019 and will replace IAS 17 'leases'. It will eliminate the classification of leases as either operating leases or finance leases and, instead, introduce a single lessee accounting model. The adoption of IFRS 16 will result in the Company recognizing lease liabilities and corresponding 'right to use' assets for agreements that are currently classified as operating leases. See note 20 for further details on operating leases held.Group.

F-14133

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

3. Financial Instruments
3.1  Financial Risk Factors
The Company's activities have exposed it to a variety of financial risks: market risk (including currency risk and interest rate risk), credit risk, and liquidity risk. The Company's overall risk management program is focused on preservation of capital and the unpredictability of financial markets and has sought to minimize potential adverse effects on the Company's financial performance and position.
(a)Currency risk
Foreign currency risk reflects the risk that the Company's net assets will be negatively impacted due to fluctuations in exchange rates. The Company has not entered into foreign exchange contracts to hedge against gains or losses from foreign exchange fluctuations.
The summary quantitative datedata about the Company's exposure to currency risk is as follows. Figures are the pound sterling values of balances in each currency:

 Year Ended December 31, 2016   Year Ended December 31, 2017
  USD EUR   USD EUR
  £'000s £'000s   £'000s £'000s
Cash and cash equivalents 10,631
 242
   16,806
 301
Short term Investments 
 
   19,718
 
Trade and other payables 305
 180
   276
 403

December 31, 2019 December 31, 2018
 GBP USD EUR GBP USD EUR
 £'000s £'000s £'000s £'000s £'000s £'000s
Cash and cash equivalents18,517
 4,399
 18
 11,293
 8,470
 21
Short term Investments6,316
 1,507
 
 19,850
 25,069
 
Trade and other payables3,226
 4,306
 728
 2,872
 4,329
 532
Sensitivity Analysis
A reasonably possible strengthening (weakening)or weakening of the Euro USor U.S. dollar or Sterling against all other currencies atpounds sterling as of December 31, December2019 and 2018 would have affected the measurement of the financial instruments denominated in a foreign currency (excluding the assumed contingent liability).
The following table shows how a movement in a currency would give rise to a profit or (loss) and affected equity and profit and loss by the amounts shown below. This analysis assumes that all other variables remain constant.a corresponding entry in equity.
 Profit or loss and equity
 Strengthening Weakening
December 31, 2017£'000s £'000s
EUR (5% movement)35
 (35)
USD (5% Movement)1,840
 (1,840)
December 31, 2016£'000s £'000s
EUR (5% movement)21
 (21)
USD (5% Movement)547
 (547)
 Profit or loss and equity
 Strengthening Weakening
December 31, 2019£'000s £'000s
EUR (5% movement)(36) 36
USD (5% Movement)80
 (80)
December 31, 2018£'000s £'000s
EUR (5% movement)(26) 26
USD (5% Movement)1,461
 (1,461)
Foreign currency denominated trade payables are short term in nature (generally 30 to 45 days). The Company has a U.S. operation, the net assets of which are exposed to foreign currency translation risk.
Estimated cashflows relating to the assumed contingent liability are predominantly denominated in US dollars. In the years ended December 31, 2019, and 2018, movements in foreign exchange rates were not material and no sensitivity analysis is therefore provided.
(b)Credit risk
Credit risk reflects the risk that the Company may be unable to recover contractual receivables. As the Company is still in the development stage no policies are currently required to mitigate this risk.

F-15134

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

For banks and financial institutions, only independently rated parties with a minimum rating of "B+" are accepted. The Directors recognize that this is an area in which they may need to develop specific policies should the Company become exposed to further financial risks as the business develops.
As of December 31, 2017,2019, and December 31, 2016,2018, cash and cash equivalents and short term investments were placed at the following banks:
Cash and Cash EquivalentsYear ended December 31, 2016 
Credit
rating
 Year ended December 31, 2017 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland11,287
 A3
 16,623
 A2
Lloyds Bank28,447
 A1
 13,448
 Aa3
Standard Chartered
 
 1,242
 A1
Wells Fargo51
 Aa1
 130
 Aa1
Total39,785
   31,443
  

Cash and Cash EquivalentsYear ended December 31, 2019 
Credit
rating
 Year ended December 31, 2018 
Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland1
 A1 150
 A1
Lloyds Bank8,355
 Aa3 15,862
 Aa3
Citibank6,529
 Aa3 3,135
 A1
Barclays1,968
 A1 449
 A2
Wells Fargo111
 Aa1 188
 Aa1
Close Brothers5,970
 Aa3 
 
Total22,934
   19,784
  

Short Term InvestmentsYear ended December 31, 2016Credit
rating
Year ended December 31, 2017Credit
rating
£'000£'000
Banks
Royal Bank of Scotland

15,316
A2
Lloyds Bank

11,036
Aa3
Standard Chartered

22,467
A1
Wells Fargo


Aa1
Total
48,819

Short Term InvestmentsYear ended December 31, 2019 Credit
rating
 Year ended December 31, 2018 Credit
rating
 £'000   £'000  
Banks       
Royal Bank of Scotland5,616
 A1 9,186
 A1
Lloyds Bank
 Aa3 1,567
 Aa3
Standard Chartered
 A1 15,450
 A1
Citibank
 Aa3 7,053
 A1
Barclays2,207
 A1 11,663
 A2
Total7,823
   44,919
  

(c)    Management of capital
The Company considers capital to be its equity reserves. At the current stage of the Company's life cycle, the Company's objective in managing its capital is to ensure funds raised meet the research and operating requirements until the next development stage of the Company's suite of projects.
The Company ensures it is meeting its objectives by reviewing its Key Performance Indicators ("KPIs") to ensure the research activities are progressing in line with expectations, costs are controlled and unused funds are placed on deposit to conserve resources and increase returns on surplus cash held.
(d)Interest rate risk
As of December 31, 2017,2019, the Company had cash deposits of £31.4£22.9 million (2016: £39.8(2018: £19.8 million) and short term investments of £48.8£7.8 million (2016: nil) (2018: £44.9 million). The rates of interest received during 20172019 ranged between 0.0% and 1.73%2.87%. A 0.25% increase in interest rates would not have a material impact on finance income.Theincome. The Company's exposure to interest rate risk, which is the risk that the interest received will fluctuate as a result of changes in market interest rates on classes of financial assets and financial liabilities, was as follows:


F-16
135

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)



 December 31, 2016 December 31, 2017
 
Floating
interest rate
 
Fixed
Interest rate
 
Floating
interest rate
 
Fixed
Interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits11,338
 28,447
 25,720
 5,723
Short Term Investments
 
 
 48,819
Total11,338
 28,447
 25,720

54,542

 December 31, 2019 December 31, 2018
 
Floating
interest rate
 
Fixed
interest rate
 
Floating
interest rate
 
Fixed
interest rate
 £'000s £'000s £'000s £'000s
Financial asset       
Cash deposits10,006
 12,928
 15,082
 4,702
Short Term Investments
 7,823
 
 44,919
Total10,006
 20,751
 15,082
 49,621

(e)Liquidity risk
The Company periodically prepares periodic working capital forecasts for the foreseeable future, allowing an assessment of the cash requirements of the Company, to manage liquidity risk. The following table provides an analysis of the Company's financial liabilities. The carrying value of all balances is equalapproximates to their fair value. The Company's maturity analysis for the derivative financial instrument from the issue of warrants is given in note 19.18.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2016       
Trade payables719
 
 
 
Other payables54
 
 
 
Accruals2,050
 
 
 
Contingent obligation
 
 
 1,807
Total2,823
 
 
 1,807
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2019       
Trade payables1,455
 
 
 
Accruals6,806
 
 
 
Lease liability476
 557
 
 
Assumed contingent liability(1)

 
 
 1,807
Total8,737
 557
 
 1,807
This table includes the undiscounted amount of the assumed contingent liability. See note 20.

 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS
 £'000s £'000s £'000s £'000s
At December 31, 2018       
Trade payables2,839
 
 
 
Other payables12
 
 
 
Accruals4,882
 
 
 
Assumed contingent liability(1)

 
 
 1,807
Total7,733
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation.liability. See note 18.
 
LESS THAN
1 YEAR
 
BETWEEN
1 AND 2
YEARS
 
BETWEEN
2 AND 5
YEARS
 
OVER
5 YEARS(1)
 £'000s £'000s £'000s £'000s
At December 31, 2017       
Trade payables1,214
 
 
 
Other payables74
 
 
 
Accruals5,866
 
 
 
Contingent obligation
 
 
 1,807
Total7,154
 
 
 1,807
(1)This table includes the undiscounted amount of the assumed contingent obligation. See note 18.20.


F-17136

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.2  Fair value estimation
The carrying amounts of cash and cash equivalents, receivables, accounts payable and accrued liabilities approximate to fair value due to their short-term nature. The carrying amount of the assumed contingent liability approximates to fair value as the underlying assumptions are currently similar. 
For financial instruments that are measured in the Consolidated Statement of Financial Position at fair value, IFRS 7 requires disclosure of fair value measurements by level of the following fair value measurement hierarchy:
Quoted prices (unadjusted) in active markets for identical assets or liabilities (level 1);
Inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly (level 2); and
Inputs for the asset or liability that are not based on observable market data (level 3).
For the year ended December 31, 2017,2019, and 2016,2018, fair value adjustments to financial instruments measure at fair value through profit and loss resulted in the recognition of finance income of £6.7£1.6 million in 2019 and £1.1a finance loss of £1.2 million respectively.in 2018.
The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. These valuation techniques maximize the use of observable market data where it is available and rely as little as possible on entity specific estimates. If all significant inputs required to ascertain the fair value of an instrument are observable, the instrument is included in level 2. If one or more of the significant inputs are not based on observable market data, the instrument is included in level 3.
 Level 3 Total
 £'000s £'000s
At December 31, 2017   
Derivative financial instrument1,273
 1,273
Total1,273
 1,273
 Level 3 Total
 £'000s £'000s
At December 31, 2019   
Derivative financial instrument895
 895
Total895
 895

Movements in Level 3 items during the years ended December 31, 2016,2019, and 20172018 are as follows:
Derivative financial instrument2016 2017
 £'000s £'000s
At January 1
 7,923
Initial recognition of derivative financial instrument8,991
 
Fair value adjustments recognized in profit and loss(1,068) (6,650)
At December 317,923
 1,273
Derivative financial instrument2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit and loss(1,597) 1,219
At December 31895
 2,492

Further details relating to the derivative financial instrument are set out in notes 4 and 1918 of these financial statements.
In determining the fair value of the derivative financial instrument, the Company applied the Black Scholes model; key inputs include the share price at reporting date, estimations on timelines, volatility and risk-free rates. These assumptions and the impact of changes in these assumptions, where material, are disclosed in note 19.18.

F-18137

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Financial Instruments (continued)

3.3  Change in liabilities arising from financing activities
The Company has provided a reconciliation so that changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes can be evaluated.
 December 31, 20172019
 Derivative financial instrument
 £'000s
At January 17,9232,492
Fair value adjustments - non cash(6,6501,597)
At December 311,273895

See note 1918 for information relating to the derivative financial instrument.

2019
Lease liability
£'000s
At January 1316
Capitalization of rental leases - non cash1,061
Payment of lease liability - cash(426)
At December 31951

See note 14 and note 2.17 for information relating to the capitalized leases.
4. Critical accounting estimates and judgments
The preparation of financial statements in conformity with IFRS requires the use of accounting estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Although these estimates are based on management's best knowledge of current events and actions, actual results ultimately may differ from those estimates. IFRS also requires management to exercise its judgment in the process of applying the Company's accounting policies.
The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are as follows:
(a)    Assumed contingent obligationliability
The Company has a material obligationliability for the future payment of royalties and milestones associated with contractual obligationsliabilities on RPL554, a development productensifentrine, acquired as part of the acquisition of RhinopharmaRhinopharma. The estimation of the fair valueamounts and timing of the assumed contingent obligation on acquisitionfuture cashflows requires the selectionforecast of an appropriate valuation model, consideration as to the inputs necessary for the valuation model chosen,royalties payable and the estimation of the likelihood that the regulatory approval milestone will be achieved (see notes 2.12 and estimates of the future cash flows and their timing (for further detail see note 19)20). The estimates for the assumed contingent obligationliability are based on a discounted cash flow model. Key assessments and judgmentsestimates included in the fair value calculation of deferred consideration are:
development, regulatory and marketing risks associated with progressing the product to market approval in key target territories;
market size and product acceptance by clinicians, patients and reimbursement bodies;
gross and net selling price;
costs of manufacturing, product distribution and marketing support;
launch of competitive products; and
discount rate and time to crystallization of contingent consideration.

In accordance with IAS 39 ("Financial Instruments Recognition and Measurement" (para AG8)), when there is a change in the expected cash flows, the assumed contingent obligation is re-measured with the change in value

F-19138

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Critical accounting estimates and judgments (continued)

launch of competitive products;
probabilities of success; and
time to crystallization of contingent consideration.
going through
When there is a change in the Consolidated Statement of Comprehensive Income. Cash flow estimates are revised when the probabilityexpected cash flows or probabilities of success, changes.the assumed contingent liability is re-measured with the change in value recognized in the IP R&D asset it relates to. This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The assumed contingent obligationliability is measured at amortized cost with the discount unwinding in the Consolidated Statement of Comprehensive Incomefinance expense throughout the year. Actual outcomes could differ significantly from the estimates made.
The Company has judged that the probabilities of success will change when it moves from one stage of clinical development to another. Management have determined that, for the purposes of assessing probabilities of success, the Company will move from Phase 2 to Phase 3 after an End of Phase 2 Meeting with the Food and Drug Administration ("FDA") in the US that provides confidence over ensifentrine's historical development program and planned Phase 3 program. A remeasurement of the liability at this time is likely to result in a significant increase in both the liability and the corresponding IP R&D asset.The Company has previously announced that it expects to meet with the FDA in the first half of 2020. The Company notes that there is no guarantee that the meeting will take place in the timeframe anticipated or that there will be a successful outcome.
Should the probabilities of success and estimates of cash flows change there will be a material increase in the assumed contingent liability and corresponding IP R&D asset. The amount will be dependent on feedback from the FDA and the probabilities of success applied. Should the Company determine that it has moved from Phase 2 to Phase 3 then the value of the liability could increase by between £15 million and £30 million; the increase in the value of the liability will give rise to an approximately equivalent increase in the value of the IP R&D asset, as described further in Note 2.7.
The value of the assumed contingent obligationliability as of December 31, 2017 amounts to £0.9 million. (2016: £0.8 million). The increase in value of the assumed contingent obligation during 20172019 amounted to £0.1 million (2016: £0.2£1.1 million. (2018: £1.0 million) and the movement relates to unwinding the discount on the liability and retranslating for changes in US$ exchange rates. The increase was recorded in finance expense. There was no change in the year to the probability of success and consequently cash flow estimates were not revised.
The discount percentage applied is 12%.
(b)    Valuation of the Derivative Financial Liability
In July 2016, warrants
Pursuant to the July 2016 Placement, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant. The warrants entitle the investors to subscribe for in aggregate a maximum of 12,446,37012,401,262 ordinary shares.
In accordance with IAS 32 and Companythe Company’s accounting policy, as disclosed in note 2.15,2.14, the Company classified the warrants as a derivative financial liability to be presented on the Company's Consolidated Statement of Financial Position.
The fair value of these warrants is determined by applying the Black-Scholes model. Assumptions are made on inputs such as time to maturity, the share price,term, volatility and risk free rate in order to determine the fair value per warrant. For further details see note 19.
Transaction costs arising on the issues of these shares and warrants are allocated to the equity and warrant liability components in proportion to the allocation of proceeds.
(c)    Recognition of research and development expenditure
The Company incurs research and development expenditure from third parties. The Company recognizes this expenditure in line with the management’s best estimation of the stage of completion of each research and development project. This includes the calculation of accrued costs at each period end to account for expenditure that has been incurred. This requires management to estimate full costs to complete for each project and also to estimate its current stage of completion. The costs related to the Clinical Research Organization expenses in the year was £18.5 million. The related accruals and prepayments were £4.6 million and £0.5 million respectively.
(d)    Transaction costs related the Global Offering
The Company incurred various transaction costs relating to the Global Offering, including commissions, professional advisor fees, financial advice, listing fees and other costs. When management judged them to be incremental costs directly attributable to the transaction they were accounted for as a deduction from equity. Otherwise the costs were expensed to the consolidated income statement as incurred.

18.
5. Earnings per share
Basic loss per ordinary share of 23.4p (2016: 15.0p30.3p (2018: 18.9p and 2015: 37.1p)2017: 23.4p) for the Company is calculated by dividing the loss for the year ended December 31, 20172019 by the weighted average number of ordinary shares in issue of 87,748,031105,326,638 as of December 31, 2017 (2016: 33,499,4132019 (2018: 105,110,504 and 2015: 20,198,469)2017: 87,748,031). Potential ordinary shares are not treated as dilutive as the entity is loss making and such shares would be anti-dilutive.


F-20

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


6. Segmental reporting
The Company’s activities are covered by one operating and reporting segment: Drug Development. There have been no changes to management’s assessment of the operating and reporting segment of the Company during the period.year.
All non-current assets are based in the United Kingdom.
7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging:     
Research and development costs:     
Employee benefits (note 8)1,322
 2,037
 3,435
Amortization of patents (note 12)43
 51
 111
Legal, professional consulting and listing fees
 
 331
Loss on disposal of patents136
 
 
Other research and development expenses5,769
 2,434
 19,840
Total research and development costs7,270
 4,522
 23,717
General and administrative costs:   
  
Employee benefits (note 8)625
 865
 2,857
Legal, professional consulting and listing fees608
 884
 2,045
Amortization of computer software (note 12)
 1
 5
Loss on disposal of property, plant and equipment (note 13)
 3
 
Depreciation of property, plant and equipment (note 13)10
 10
 7
Operating lease charge — land and buildings157
 169
 294
Loss on variations in foreign exchange rate21
 139
 36
Other general and administrative expenses285
 427
 795
Total general and administrative costs1,706
 2,498
 6,039
Operating loss8,976
 7,020
 29,756




F-21139

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

8. Directors' emoluments and staff costs7. Operating loss
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and Development5
 5
 7
General and Administrative3
 2
 5
Total8
 7
 12
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits722
 951
 897
Social security costs132
 118
 103
Incremental payment for additional services89
 44
 
Other pension costs38
 19
 17
Total directors' emoluments981
 1,132
 1,017
Share-based payment charge232
 257
 1,037
Directors' emoluments including share-based payment charge1,213
 1,389
 2,054

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries540
 1,027
 2,136
Social security costs42
 98
 182
Incremental payment for additional services
 58
 
Share-based payment charge137
 319
 1,882
Other pension costs15
 11
 38
Total other staff costs734
 1,513
 4,238
The Company operates a defined contribution pension scheme for U.K. employees and executive directors. The total pension cost during the year ended December 31, 2017 was £55 thousand (2016: £30 thousand and 2015: £53 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2017(2016 and 2015: £nil).

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Operating Loss is stated after charging / (crediting):     
Research and development costs:     
Employee benefits (note 8)4,688
 3,360
 3,435
Amortization of patents (note 12)102
 85
 111
Legal, professional consulting and listing fees537
 161
 331
Other research and development expenses28,149
 15,688
 19,840
Total research and development costs33,476
 19,294
 23,717
General and administrative costs: 
  
  
Employee benefits (note 8)3,093
 3,240
 2,857
Legal, professional consulting and listing fees2,155
 1,296
 2,045
Amortization of computer software (note 12)4
 5
 5
Depreciation of property, plant and equipment (note 13)16
 8
 7
Depreciation of right-of-use assets (note 14)382
 
 
Operating lease charge — land and buildings
 384
 294
Loss / (gain) on variations in foreign exchange rate345
 (9) 36
Other general and administrative expenses1,612
 1,373
 795
Total general and administrative costs7,607
 6,297
 6,039
Operating loss41,083
 25,591
 29,756




F-22140

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
Finance income and expense (continued)2019

9. Finance income8. Directors' emoluments and expensestaff costs
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances45
 86
 345
Foreign exchange gain on translating foreign currency denominated bank balances
 687
 
Fair value adjustment on derivative financial instruments (note 19)
 1,068
 6,650
Other Income
 
 23
Total finance income45
 1,841
 7,018
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
The average number of employees (excluding directors) of the Company during the year:    

Research and development13
 7
 7
General and administrative9
 7
 5
Total22
 14
 12
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate emoluments of directors:     
Salaries and other short-term employee benefits850
 830
 897
Social security costs112
 94
 103
Incremental payment for additional services26
 26
 
Other pension costs10
 10
 17
Total directors' emoluments998
 960
 1,017
Share-based payment charge925
 1,337
 1,037
Directors' emoluments including share-based payment charge1,923
 2,297
 2,054
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate executive officers costs:     
Wages and salaries1,150
 857
 864
Social security costs98
 83
 81
Share-based payment charge751
 769
 1,332
Other pension costs21
 19
 17
Total executive officers costs2,020
 1,728
 2,294
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Aggregate other staff costs:     
Wages and salaries2,788
 1,622
 1,272
Social security costs265
 150
 101
Share-based payment charge765
 795
 550
Other pension costs46
 34
 21
Total other staff costs3,864
 2,601
 1,944
The Company considers key management personnel to comprise directors and executive officers.
The Company operates defined contribution pension schemes for its employees and executive director. The total pension cost during the year ended December 31, 2019 was £77 thousand (2018: £63 thousand and 2017: £55 thousand). There were no prepaid or accrued contributions to the scheme at December 31, 2019 (2018 and 2017: £nil).

 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Transaction costs allocated to the issue of warrants (note 19)
 586
 
Foreign exchange loss on translating foreign currency denominated balances
 
 2,392
Remeasurement of assumed contingent arrangement (note 18)10
 122
 
Unwinding of discount factor and foreign exchange movements related to the assumed contingent arrangement (note 18)63
 86
 73
Total finance expense73
 794
 2,465

F-23141

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Taxation (continued)
9. Finance income and expense
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance income:     
Interest received on cash balances754
 861
 345
Foreign exchange gain on translating foreign currency denominated balances
 1,922
 
Fair value adjustment on derivative financial instruments (note 18)1,597
 
 6,650
Other Income
 
 23
Total finance income2,351
 2,783
 7,018

 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Finance expense:     
Fair value adjustment on derivative financial instruments (note 18)
 1,219
 
Interest on discounted lease liability50
 
 
Foreign exchange loss on translating foreign currency denominated balances305
 
 2,392
Unwinding of discount factor related to the assumed contingent arrangement (note 20)119
 106
 73
Total finance expense474
 1,325
 2,465

142

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

10. Taxation
 Year ended December 31, 2015 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
UK tax credit(1,520) (1,067) (5,006)
US tax charge
 129
 306
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
Factors affecting the tax charge for the year     
Loss on ordinary activities(9,002) (5,973) (25,203)
Multiplied by standard rate of corporation tax of 19.25% (2016: 20% and 2015: 20.25%)(1,823) (1,195) (4,852)
Effects of:     
Non-deductible expenses114
 292
 675
Fair value adjustment on derivative financial instruments
 (214) (1,280)
Research and development incentive(600) (427) (2,116)
Temporary differences not recognized(1) (4) (2)
Difference in overseas tax rates
 56
 136
Tax losses carried forward not recognized790
 554
 2,739
Adjustment in respect of prior periods11
 (16) (6)
Total tax credit(1,509) (954) (4,706)
 Year ended December 31, 2019 Year ended December 31, 2018 Year ended December 31, 2017
 £'000s £'000s £'000s
Analysis of tax credit for the year     
Current tax:     
U.K. tax credit(7,250) (4,290) (5,006)
U.S. tax charge56
 30
 306
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
      
The difference between the total tax shown above and the amount calculated by applying the standard rate of tax to the loss before tax is as follows:
Factors affecting the tax credit for the year     
Loss on ordinary activities before taxation(39,206) (24,133) (25,203)
      
Multiplied by standard rate of corporation tax of 19% (2018: 19% and 2017: 19.25%)(7,449) (4,585) (4,852)
Effects of:     
Non-deductible expenses515
 540
 675
Fair value adjustment on derivative financial instruments(303) 232
 (1,280)
Research and development incentive(3,119) (1,846) (2,116)
Temporary differences not recognized(6) (3) (2)
Difference in overseas tax rates16
 8
 136
Tax losses carried forward not recognized3,152
 1,394
 2,739
Adjustment in respect of prior periods(71) 28
 (6)
Total tax credit(7,265) (4,232) (4,706)
UKU.K. corporation tax is charged at 19.25% (2016: 20.00%19% (2018: 19.00% and 2015: 20.25%2017: 19.25%) and U.S. federal and state tax at 35% (201627.6% (2018: 27.6% and 2015:2017: 35%).
The following tables represent deferred tax balances recognized in the Consolidated Statement of Financial Position. There were no movements in either the deferred tax asset or the deferred tax liability.
 Year ended December 31, 2016 Year ended December 31, 2017
 £'000s £'000s
Deferred tax assets250
 250
Deferred tax liabilities(250) (250)
Net balances
 
 As at December 31, 2019 As at December 31, 2018
 £'000s £'000s
Deferred tax assets332
 250
Deferred tax liabilities(332) (250)
Net balances
 
The deferred tax liability relates to the difference between the accounting and tax bases of the IP R&D intangible asset. A deferred tax asset relating to UK tax losses has been recognized and offset against the liability.
Factors that may affect future tax charges
The Company has UKU.K. tax losses available for offset against future profits in the UK.United Kingdom. However an additional deferred tax asset has not been recognized in respect of such items due to uncertainty of future profit streams. As of December 31, 2017,2019, the unrecognized deferred tax asset at 17% is estimated to be £5.43£9.27 million (2016: £3.15(2018: £6.65 million at 17%).

F-24143

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

11. Goodwill
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Goodwill at January 1 and December 31441
 441
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Goodwill at January 1 and December 31441
 441

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in connection with the acquisition of Rhinopharma in September 2006. Goodwill is not amortized, but is tested annually for impairment. Annual
The Company has one CGU so goodwill is tested for impairment together with its intangible assets. It was tested with reference to the Company's market capitalization as of December 31, 2019, the date of testing is performed by comparing the expected recoverable amountof IP R&D and goodwill impairment. The market capitalization of the CGUCompany was approximately £65.3 million as of December 31, 2019, (2018: 92.2 million) compared to the carrying amountCompany's net assets of £33.9 million (2018: £63.4 million). Therefore, no impairment was required.
The Company notes that after the reduction in its share price since December 31, 2018, and before the increase by December 31, 2019, at various points in the three months to March 31, 2019, the market value of the CGUCompany was less than its net book value. The Company therefore carried out an impairment review as at March 31, 2019. From market research the Company assessed, among other inputs, potential patient numbers from likely physician prescribing patterns, price points, the time from possible launch to which goodwill has been allocatedpeak sales, script rejection, attrition rates and probability of success. The Company also carried out a sensitivity analysis on key assumptions and assessed that a reasonable change in these assumptions would not lead to the value in use falling below net book value. Consequently, management determined that the Company's value in use exceeded the carrying amountvalue of the CGU. See note 2.8Company's assets and that no impairment was required.

At various other points in the year ended December 31, 2019, the market value of the Company was less than its net book value. Consequently, management re-performed the impairment review quarterly, and identified no changes to market conditions, the consolidated financial statements.
12. Intangiblecompetitive landscape, market research insights or other factors that would change its conclusions. As a result, management determined that the Company's value in use exceeded the carrying value of the Company's assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20161,469
 25
 482
 1,976
Additions
 5
 110
 115
Disposals
 (24) 
 (24)
At December 31, 20161,469
 6
 592
 2,067
Accumulated amortization       
At January 1, 2016
 24
 138
 162
Charge for year
 1
 51
 52
Disposals
 (24) 
 (24)
At December 31, 2016
 1
 189
 190
Net book value       
At December 31, 20161,469

5

403

1,877
and that no impairment was required at those dates.

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20171,469
 6
 592
 2,067
Additions
 5
 203
 208
Disposals
 
 (68) (68)
At December 31, 20171,469
 11
 727
 2,207
Accumulated amortization       
At January 1, 2017
 1
 189
 190
Charge for year
 5
 111
 116
Disposals
 
 (68) (68)
At December 31, 2017
 6
 232
 238
Net book value       
At December 31, 20171,469

5

495

1,969

F-25144

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
Intangible assets (continued)

12. Intangible assets
 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 2018 (Restated)1,953
 11
 727
 2,691
Additions
 4
 251
 255
Disposals
 
 (6) (6)
At December 31, 2018 (Restated)1,953
 15
 972
 2,940
Accumulated amortization       
At January 1, 2018
 6
 232
 238
Charge for year
 5
 85
 90
Disposals
 
 (6) (6)
At December 31, 2018
 11
 311
 322
Net book value       
At December 31, 2018 (Restated)1,953

4

661

2,618

 IP R&D 
Computer
software
 Patents Total
 £'000s £'000s £'000s £'000s
Cost       
At January 1, 20191,953
 15
 972
 2,940
Additions
 3
 242
 245
At December 31, 20191,953
 18
 1,214
 3,185
Accumulated amortization       
At January 1, 2019
 11
 311
 322
Charge for year
 4
 102
 106
At December 31, 2019
 15
 413
 428
Net book value       
At December 31, 20191,953

3

801

2,757
Intangible assets comprise patents, computer software and an IP R&D asset that arose on the acquisition of Rhinopharma and investment in patents to protect RPL554.ensifentrine.
The IP R&D asset acquired through the business combination was initially recognized at fair value. Subsequent movements in the assumed contingent liability that relate to changes in estimated cash flows or probabilities of success are recognized as additions to the IP R&D asset that it relates to. This is currentlya change in accounting policy (see note 2.17). The asset is not amortized and is reviewedtested annually for impairment on an annual basis or where there is an indication that the assets might be impaired until the asset is brought into use.impairment.
Patents are amortized over a period of ten years and are regularly reviewedtested annually for impairment.
Intangible assets are tested for impairment to ensure the carrying amount exceeds the recoverable amount in accordance with note 2.8.
Recognizing thatgoodwill, as the Company is still in its pre-revenue phase and thathas only one CGU. See note 11 for information about the research projects are not yet ready for commercial use, the Company assesses the recoverable amount of the CGU containing the IP R&D with reference to the Company's market capitalization as of December 31, 2017, the date of testing of goodwill impairment. The market capitalization of the Company was approximately £109.7 million as of December 31, 2017, (2016: £80.0 million) compared to the Company's net assets of £79.9 million (2016: £34.5 million). Therefore, no impairment was recognized.review.

F-26145

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

13. Property, plant and equipment
 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201643
 36
 79
Additions13
 
 13
Disposals(39) (36) (75)
At December 31, 201617
 
 17
Accumulated depreciation     
At January 1, 201639
 27
 66
Charge for the year3
 7
 10
Disposals(39) (34) (73)
At December 31, 20163
 
 3
Net book value     
At December 31, 201614



14
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201826
 26
Additions13
 13
At December 31, 201839
 39
Accumulated depreciation   
At January 1, 201810
 10
Charge for the year8
 8
At December 31, 201818
 18
Net book value   
At December 31, 201821

21


 
Computer
hardware
 
Office
equipment
 Total
 £'000s £'000s £'000s
Cost     
At January 1, 201717
 
 17
Additions9
 
 9
At December 31, 201726
 
 26
Accumulated depreciation     
At January 1, 20173
 
 3
Charge for the year7
 
 7
At December 31, 201710
 
 10
Net book value     
At December 31, 201716



16
 
Computer
hardware
 Total
 £'000s £'000s
Cost   
At January 1, 201939
 39
Additions38
 38
At December 31, 201977
 77
Accumulated depreciation   
At January 1, 201918
 18
Charge for the year16
 16
At December 31, 201934
 34
Net book value   
At December 31, 201943

43

F-27146

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

14. Right-of-use assets - property leases
The right-of-use asset relates to rented office space in London and New York where the Company generally enters in to leases for terms of less than three years. Before the adoption of IFRS 16 these leases were classified as operating leases.

The Consolidated Statement of Financial Position shows the following amounts relating to leases:

 Year ended December 31, 2019 As of January 1, 2019*
 £'000s £'000s
Right-of-use assets   
Right-of-use assets971
 326
 971
 326
    
Lease liabilities   
Current(460) (316)
Non Current(491) 
 (951) (316)

Additions to the right-of-use assets were £1,047,000 and were recognized when the Company was reasonably certain to extend the leases. The additions related to both of the Company's office locations, both of which agreements have similar terms and conditions.
To calculate the value of the lease liabilities the Company applied a discount rate of 8%.
The leases end in 2021 and 2022 and include options to extend them. The Company has determined it is not yet reasonably certain to operate the option to extend the leases and so has recognized lease payments only to these points in its calculation of the lease liabilities.
The right-of-use lease assets are depreciated over the term of the leases.
The Consolidated Statement of Comprehensive Income includes the following amounts relating to leases:

Year ended December 31, 2019Year ended December 31, 2018
£'000s£'000s
Depreciation charge of right-of-use assets
Right-of-use assets(382)
(382)
Interest expense (including finance cost)50

Expense relating to short-term leases (included in general and administrative expenses)78


The total cash outflow for leases in 2019 was £492,000.

147

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019

15. Prepayments and other receivables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Prepayments1,361
 1,138
Deferred IPO costs1,527
 
Other receivables71
 672
Total prepayments and other receivables2,959
 1,810
Deferred IPO costs related to the Global Offering. These costs were offset against share premium in 2017 when the Global Offering was completed.
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Prepayments1,309
 1,362
Other receivables1,461
 1,101
Total prepayments and other receivables2,770
 2,463
The prepayments balance includes prepayments for insurance and clinical activities.
There are no impaired assets within prepayments and other receivables.
15.16. Share Capital
On February 8, 2017, the board of the Company approved a share consolidation where every 50 existing ordinary shares of £0.001 were consolidated into one ordinary share of £0.05. The movements in the Company's share capital are summarized below:
Date Description 
Number of
shares
 
Share Capital
amounts in
 £'000
January 1, 2016 
 20,198,469
 1,010
July 29, 2016 Issuance of shares 31,115,926
 1,556
September 12, 2016 Exercise of options 3,334
 
October 24, 2016 Exercise of options 3,334
 
December 28, 2016 Exercise of options 40,000
 2
As at December 31, 2016   51,361,063
 2,568
May 2, 2017 Issuance of shares 47,653,100
 2,383
May 18, 2017 Issuance of shares 5,539,080
 277
May 26, 2017 Issuance of shares 330,824
 17
September 13, 2017 Exercise of options 133,333
 6
December 31, 2017   105,017,400
 5,251

Date Description 
Number of
shares
 
Share Capital
amounts in £'000s
 
January 1, 2018   105,017,401
 5,251
August 9, 2018 Vesting of RSUs 58,112
 3
September 20, 2018 Vesting of RSUs 251,125
 12
As at December 31, 2018   105,326,638
 5,266
As at December 31, 2019   105,326,638
 5,266
The total number of authorized ordinary shares, with a nominal value of £0.05 each, is 200,000,000 (share capital of £10,000,000). All 105,017,400105,326,638 ordinary shares at December 31, 20172019 are allotted, unrestricted, called up and fully paid. All issued shares rank pari passu.
On April 26, 2017,During 2018, the Company announced the closing of its Global Offering of an aggregate of 47,399,001 newissued 309,237 ordinary shares comprising 5,768,000 American Depositary Shares (“ADSs”) at a priceupon vesting of $13.50 per ADS and 1,255,001 ordinary shares at a price of £1.32 per ordinary share. During May 2017 the underwriters purchased an additional 733,738 ADSs, representing 5,869,904 ordinary shares, at a price of $13.50 per ADS. The total gross proceeds in the Global Offering amounted to $89.9 million (£70.0 million).employee restricted share units.



F-28

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
Share Capital (continued)

In addition, the Chairman of Verona Pharma’s board of directors, Dr David Ebsworth, and an existing shareholder agreed to subscribe for 254,099 new ordinary shares at a price of £1.32 per ordinary share in the Shareholder Private Placement, contingent on and concurrent with the Global Offering and generating gross proceeds of £0.3m.
Where there is a time and foreign exchange difference between proceeds from a share issue becoming due and being received, the movement is taken to Finance income or Finance expense as appropriate. In respect of the Global Offering and Shareholder Private Placement, the Company recorded a finance expense of £439 thousand arising from movements in exchange rates on funds receivable, offset by a saving on commission payable of £31 thousand, for a net finance expense of £408 thousand.
On September 13, 2017, the company issued 133,333 new shares upon exercise of share options at 110p per share, resulting in proceeds of £147 thousand to the Company.
On July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant (see note 19).
During 2016, the Company issued 46,666 ordinary shares upon exercise of employee share options.
As at December 31, 2017, the number of ordinary shares in issue was 105,017,400.  All new ordinary shares rank pari passu with existing ordinary shares.

F-29148

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

16.17. Share-based payments charge
The Company operates various share based payment incentive schemes for its staff.
In accordance with IFRS 2 "Share Based Payments," the cost of equity-settled transactions is measured by reference to their fair value at the date at which they are granted. Where equity-settled transactions were entered into with third party service providers, fair value is determined by reference to the value of the services provided. For other equity-settled transactions fair value is determined using the Black-Scholes model. The cost of equity-settled transactions is recognized over the period until the award vests. No expense is recognized for awards that do not ultimately vest. At each reporting date, the cumulative expense recognized for equity-based transactions reflects the extent to which the vesting period has expired and the number of awards that, in the opinion of the Directors at that date, will ultimately vest.
The costs of equity-settled share-based payments to employees are recognized in the Statement of Comprehensive Income, together with a corresponding increase in equity during the vesting period. During the twelve months ended December 31, 2017,2019, the Company recognized a share-based payment expense of £2.92£2.44 million (2016: £0.58 million ).(2018: £2.90 million). The charge is included within both general and administrative costs as well as in research and development costs and represents the current year's allocation of the expense for relevant share options.
The Company grants share options underoperates an Unapproved Share Option Scheme (the "Unapproved Scheme"). Under the Unapproved Scheme,under which options are granted to employees, directors and consultants to acquire shares atwere issued before 31 December 2016. The Company also operates a price to be determined by the Directors. In general, options granted prior to December 31, 2016 were granted at a premium to the share price at the date of grant and vested over a period of three years from the date of grant, one third vesting on the first anniversary of grant, a further third vesting on the second anniversary of grant and the remainder vesting on the third anniversary of grant.
Options granted since January 1, 2017 generally vest over three or four years from the date of the grant using two different methods. The first method is one third vesting over one year, the second third vesting over two years and the final third vesting over three years. The second method is one quarter vesting over one year, the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years. The vesting period is defined as the period between the date of grant and the date when the options become exercisable. The options are exercisable during a period ending ten years after the date of grant.
Options are also issued to advisors under the Unapproved Scheme. Such options generally vest immediately and are exercisable between one and two years after grant.
In 2016 the Company issued options under its tax efficient EMI Option Scheme (the "EMI Scheme"). Under the EMI Scheme,under which options were grantedissued before 31 December 2016. In 2017 the Company commenced the 2017 Incentive Award Plan under which the Company grants share options and Restricted Stock Units ("RSUs") to employees and directors whodirectors.
Since 2017 options are contracted to workissued with an exercise price at least 25 hours a week for the Company or for at least 75% of their working time. The options granted under the EMI Scheme are exercisable at a price that is above the share price atthe evening before the date of issue. They vest over terms of one to four years.
RSUs also vest over terms of one to four years. In the grant andyear ended December 31, 2019, the Company modified the terms of all the RSUs issued prior January 1, 2019, to include a market based performance condition. The Company's share price must be maintained above £2 for thirty days for the RSUs to vest, in accordance with a vesting schedule determined byaddition to the Directors at the time of grant and have an exercise period of ten years from the date of grant.
The Company grants Restricted Stock Units to employees and directors.existing service condition. The RSUs vest overafter a periodfive year term irrespective of three or four years fromwhether the date£2 market condition was met. This modification did not result in an increase in the fair value of the grant using 2 different methods.RSUs. The first method is one third vesting over oneRSUs issued in the year ended December 31, 2019, also include the second third vesting over two yearssame market condition and the final third vesting over three years. The second method is one quarter vesting over onefive year the second quarter vesting over two years, the third quarter vesting over three years and the final quarter vesting over four years.term.
In the year ended December 31, 2019, under the 2017 Incentive Award Plan, the Company granted 4,656,828 (2016: 1,670,000 )5,569,050 (2018: 2,090,847) share options nil (2016: 32,000) share options under the EMI Scheme and 1,052,236 Restricted Stock Units (“RSUs”) (2016: nil)740,496 RSUs (2018: 273,390). The total fair values of the Optionsoptions and RSUs were estimated using the Black-Scholes option-pricing model for equity-settled transactions and amounted to £5.33£2.25 million (2016: £1.93(2018: £2.32 million). The cost is amortized over the vesting period of the options and RSUs on a straight-line basis.
Prior to the July 2016 Placement in 2016, management determined to take an option's contractual maximum life as an input into the Black-Scholes option-pricing model. Starting from the July 2016 Placement and in line with the continued development of the Company's clinical trials, the Company determined the time to maturity to be used in the valuation model to be better represented by the weighted-average life of the options granted.

F-30

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017
16. Share-based payments charge (Continued)


Thebasis.The following assumptions were used for the Black-Scholes valuation of share options and RSUs granted in 20162018 and 2017.2019. For the options granted under the Unapproved Scheme the table indicates the ranges used in determining the fair-market values, aligning with the various dates of the underlying grants. The volatility is calculated using historichistorical weekly averages of the Company's share price over a period that is in line with the expected life of the options.
Issued in 2016EMI Scheme Unapproved
Scheme
Options granted32,000
 1,670,000
Risk-free interest rate1.42% 0.23%-1.42%
Expected life of options10 years
 5.5-10 years
Annualized volatility88.0% 74.3% - 88.0%
Dividend rate0.00% 0.00%
Vesting period3 years
 3 years
    
Issued in 2017Unapproved
Scheme
 Restricted Stock Units
Options granted4,656,828
 1,052,236
Risk-free interest rate0.29% - 0.62%
 0.42%-0.62%
Expected life of options5.5 – 7.0 years
 5.5 – 7.0 years
Annualized volatility71.3% - 73.3%
 71.3% - 73.3%
Dividend rate0.00% 0.00%
Vesting period3 and 4 years
 3 and 4 years
The Company had the following share options movements in the year ended December 31, 2017:
Year of issue Exercise
price (£)
 At January 1, 2017 
Options
granted
 
Options
exercised
 
Options
forfeited
 
Options
expired
 At December 31, 2017 Expiry date 
2012 2.50 - 7.50
 100,000
 
 
 
 
 100,000
 June 1, 2022 
2013 2
 100,000
 
 
 
 
 100,000
 April 15, 2023 
2013 2.00
 20,000
 
 
 
 (20,000) 
 June 1, 2023*
2013 2.00
 160,000
 
 
 
 
 160,000
 July 29, 2023 
2014 1.75
 110,000
 
 
 
 
 110,000
 May 15, 2024 
2014 1.75
 63,333
 
 
 
 (13,333) 50,000
 May 15, 2024*
2014 1.10 - 1.75
 200,000
 
 (133,333) 
 
 66,667
 August 6, 2018
**

2015 1.25
 82,000
 
 
 
 
 82,000
 January 29, 2025*
2015 1.25
 510,000
 
 
 
 
 510,000
 January 29, 2025 
2016 2
 260,000
 
 
 
 
 260,000
 February 2, 2026 
2016 2.00
 22,000
 
 
 
 
 22,000
 February 2, 2026*
2016 1.80
 810,000
 
 
 
 
 810,000
 August 3, 2026 
2016 1.89
 300,000
 
 
 
 
 300,000
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 
 4,656,828
 
 
 
 4,656,828
 April 26, 2027 
Total   3,037,333
 4,656,828
 (133,333) 
 (33,333) 7,527,495
   
*Options granted under the EMI Scheme.
* *    Valued based on fair value of services received.

and RSUs.

F-31149

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)



Issued in 2018 Unapproved
Scheme
 Restricted Stock Units
Options granted 2,090,847
 273,390
Risk-free interest rate 1.08% - 1.22%
 1.08% - 1.22%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 69.88% -71.35%
 69.88% -71.35%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
     
Issued in 2019 Unapproved
Scheme
 Restricted Stock Units
Options granted 5,569,050
 740,496
Risk-free interest rate 0.39% - 0.82%
 0.76% - 0.82%
Expected life of options 5.5 - 7 years
 5.5 - 7 years
Annualized volatility 67.98% - 69.71%
 63.82% - 69.71%
Dividend rate 0.00% 0.00%
Vesting period 1 to 4 years
 1 to 4 years
The Company had the following Restricted Share Unitsshare options movements in the year ended December 31, 2017:2019:
Year of issue Exercise
price
(£)
 At January 1, 2017 Units
granted
 Units
exercised
 Units
forfeited
 Units
expired
 At December 31, 2017 Expiry date
2017   
 1,052,236
 
 
 
 1,052,236
 April 26, 2027
Total   

1,052,236







1,052,236
  
Year of issue Exercise
price (£)
 At January 1, 2019 
Options
granted
 
Options
forfeited
 
Options
expired
 At December 31, 2019 Expiry date 
2012 2.50 - 7.50
 99,993
 
 
 
 99,993
 June 1, 2022 
2013 2
 99,990
 
 
 (19,998) 79,992
 April 15, 2023 
2013 2.00
 159,999
 
 
 
 159,999
 July 29, 2023 
2014 1.75
 109,998
 
 
 
 109,998
 May 15, 2024 
2014 1.75
 49,998
 
 
 
 49,998
 May 15, 2024*
2015 1.25
 41,997
 
 
 
 41,997
 January 29, 2025*
2015 1.25
 549,999
 
 
 
 549,999
 January 29, 2025 
2016 2
 240,000
 
 
 
 240,000
 February 2, 2026 
2016 2.00
 21,996
 
 
 
 21,996
 February 2, 2026*
2016 1.80
 676,664
 
 
 
 676,664
 August 3, 2026 
2016 1.89
 299,997
 
 
 
 299,997
 September 13, 2026 
2016 2.04
 300,000
 
 
 
 300,000
 September 16, 2026 
2017 1.32 - 1.525
 4,093,164
 
 
 
 4,093,164
 April 26, 2027 
2018 1.46
 2,008,319
 
 (34,614) 
 1,973,705
 March 8, 2028 
2019 570.00
 
 3,903,050
 (87,356) 
 3,815,694
 March 29, 2029 
2019 595.00
 
 346,000
 
 
 346,000
 June 11, 2029 
2019 457.00
 
 100,000
 
 
 100,000
 August 22, 2029 
2019 0.436
 
 720,000
 
 
 720,000
 November 6, 2029 
2019 445.00
 
 500,000
 
 
 500,000
 November 26, 2029 
Total   8,752,114
 5,569,050
 (121,970) (19,998) 14,179,196
   

The average fair value at grant date, by year of grant and plan, of the exercisable options as per December 31, 2017 is presented in the below table.
Year of issueEMI Scheme (£) Unapproved
Scheme (£)
 RSU (£)
20120.63 - 1.20
 
 
20130.83
 0.79 - 0.95
  
20140.76
 0.23 - 0.76
  
20150.57
 0.57
  
20161.35
 0.93 - 1.35
  
2017
 0.84
 1.33


Outstanding and exercisable share options by scheme as of December 31, 2017:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved7,313,473
 773,333
 1.50
 1.64
EMI213,984
 185,333
 3.06
 3.28
Total7,527,457
 958,666
 1.54
 1.95

As at December 31, 2017 there were no restricted share options exercisable (2016: nil) and there is no exercise price for restricted share options.





The options outstanding at December 31, 2017 had a weighted average remaining contractual life of 8.6 years (2016: 8.2 years). For 2016 and 2017, the number of options granted and expired and the weighted average
*Options granted under the EMI Scheme.

F-32150

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 20172019
16.17. Share-based payments charge (Continued)


The Company had the following RSU movements in the year ended December 31, 2019:
Year of issue Exercise
price
(£)
 At January 1, 2019 Units
granted
 Units
vested
 Units
forfeited
 At December 31, 2019 Expiry date 
2017   729,987
 
 
 
 729,987
 April 26, 2027 
2018   132,486
 
 
 
 132,486
 March 8, 2028 
2019     740,496
 
 
 740,496
 March 29, 2027 
Total   862,473
 740,496
 
 
 1,602,969
   
Outstanding and exercisable share options by scheme as of December 31, 2019:
PlanOutstanding Exercisable Weighted average exercise price in £ for Outstanding Weighted average exercise price in £ for Exercisable
Unapproved13,965,212
 5,552,293
 1.12
 1.55
EMI213,984
 213,984
 3.06
 3.06
Total14,179,196
 5,766,277
 1.15
 1.61
As of December 31, 2019 there were no restricted share options exercisable (2018: nil) and there is no exercise price for restricted share options.
The options outstanding at December 31, 2019 had a weighted average remaining contractual life of 7.7 years (2018: 8.0 years). For 2018 and 2019, the number of options granted and expired and the weighted average exercise price of options were as follows:
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2016 1,792,000
 1.78
Options granted in 2016:    
Employees 1,002,000
 1.92
Directors 700,000
 2.05
Options exercised in the year (46,666) 1.12
Options forfeited in the year (150,001) 1.24
Options expired in the year (260,000) 2.46
At December 31, 2016 3,037,333
 1.87
Exercisable at December 31, 2016 846,667
 2.25
  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2018 7,527,458
 1.53
Options granted in 2018:    
Employees 1,222,089
 1.46
Directors 868,758
 1.46
Options forfeited in the year (799,524) 1.43
Options expired in the year (66,667) 1.75
At December 31, 2018 8,752,114
 1.53
Exercisable at December 31, 2018 3,542,884
 1.66

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2017 3,037,333
 1.87
Options granted in 2017:    
Employees 3,150,846
 1.32
Directors 1,505,982
 1.32
Options exercised in the year (133,333) 1.10
Options forfeited in the year 
 
Options expired in the year (33,333) 1.90
At December 31, 2017 7,527,495
 1.53
Exercisable at December 31, 2017 797,333
 2.04

  
Number of
options
 
Weighted average
exercise price
(£)
At January 1, 2019 8,752,114
 1.53
Options granted in 2019:    
Employees 4,042,106
 0.55
Directors 1,526,944
 0.53
Options forfeited in the year (121,970) 0.82
Options expired in the year (19,998) 2.00
At December 31, 2019 14,179,196
 1.15
Exercisable at December 31, 2019 5,766,277
 1.60
The following table shows the number of RSUs issued, exercised and forfeited in 2017. No RSUs were granted in 2016 and none of the RSUs granted in 2017 were forfeited, canceled or vested in the year.2018. The fair value of each unvested RSU at grant date was £1.32.£1.46.

151

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE THREE YEARS ENDED DECEMBER 31, 2019
17. Share-based payments charge (Continued)


  Number of
RSUs
At January 1, 20172018 1,052,236
Granted:  
Employees 705,841136,404
Directors 346,395136,986
RSUs vested in the year(309,237)
RSUs forfeited in the year(153,916)
At December 31, 2018862,473
The following table shows the number of RSUs issued in 2019. There were no RSUs forfeited, canceled or vested in 2019. The fair value of each unvested RSU granted in 2019 was £0.57.
Number of
RSUs
At January 1, 2019862,473
Granted:
Employees474,072
Directors266,424
RSUs vested in the year
RSUs forfeited in the year
At December 31, 20172019 1,052,2361,602,969


F-33

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


17. Trade and other payables
 As of December 31, 2016 As of December 31, 2017
 £'000s £'000s
Trade payables719
 1,214
Other payables54
 74
Accruals2,050
 5,866
Total trade and other payables2,823
 7,154
As of December 31, 2016, accruals included £0.89 million related to expenses associated with the Global Offering which was fully paid during the year ended December 31, 2017.
18. Assumed contingent obligation related to the business combinationDerivative financial instrument
The value of the assumed contingent obligation as of December 31, 2017 amounts to £875 thousand (2016: £802 thousand). The increase in value of the assumed contingent obligation during 2017 amounted to £73 thousand (2016: £208 thousand ) and was recorded in finance expense as it related to the unwind of the discount on the liability and retranslation for changes in US$ exchange rates. Periodic re-measurement is triggered by changes in the probability of success. In 2016 the remeasurement was triggered by the success of the Company's Phase 2a clinical trial, presented in March 2016. The discount percentage applied is 12%. In 2017 there were no events that triggered remeasurement.
 2016 2017
 £'000s £'000s
January 1594
 802
Re-measurement of assumed contingent obligation86
 
Impact of changes in foreign exchange rates37
 (23)
Unwinding of discount factor85
 96
December 31802
 875
The table below describes the reported change to the value of the liability during 2017 of £73 thousand (2016: £208 thousand) compared to what this number would be following the presented variations to the underlying assumptions (assuming the probability of success does not change):
 2016 2017
 £'000s £'000s
Change in value of the assumed contingent obligation208
 73
10% lower revenue assumption202
 72
10% higher revenue assumption215
 73
1% lower risk assumption205
 69
1% higher risk assumption211
 76

F-34

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEAR ENDED DECEMBER 31, 2017


19. Warrants
Pursuant to the July 2016 Placement, onOn July 29, 2016, the Company issued 31,115,926 units to new and existing investors at the placing price of £1.4365 per unit. Each unit comprises one ordinary share and one warrant.
The warrant holders can subscribe for 0.4 of an ordinary share at a per share exercise price of 120% of the placing price or £1.7238. The warrant holders can opt for a cashless exercise of their warrants, whereby the warrant holders can choose to exchange the warrants held for reduced number of warrants exercisable at nil consideration. The reduced number of warrants is calculated based on a formula considering the share price and the exercise price of the warrants. The warrants are therefore classified as a derivative financial liability, since their exercise could result in a variable number of shares to be issued.
The warrants entitled the investors to subscribe for, in aggregate, a maximum of 12,446,37012,401,262 shares. The warrants can be exercised on the earlier of the consummation of the Global Offering (being April 26, 2017) or the first anniversary of the grant, and the exercise period shall end on the fifth anniversary of the date of grant (being July 29, 2021).
The ordinary shares and warrants were accounted for as a compound financial instrument. The warrants component of the instrument issued at the July 2016 Placement was classified as a derivative financial liability and was initially measured at fair value of £9.0 million. The residual amount of proceeds totaling £35.7 million was recognized within equity. Subsequently the financial liability was re-measured at the reporting date at fair value through profit or loss.
The total of transaction costs the Company incurred for the above transactions amounted to £2.9 million of which £0.6 million was allocated to the warrants and the remaining £2.3 million was presented as a reduction to share premium, by reference to the proceeds allocated to each component. The amount assigned to the financial liability of the warrants was subsequently presented as finance expense in the Consolidated Statement of Comprehensive Income.until May 2, 2022.
In the year ended December 31, December 20172019, no warrants over 45,108 shares were forfeited (2016:(2018: nil).
The table below presents the assumptions in applying the Black-Scholes model to determine the fair value of the warrants.
 As of December 31, 2016 As of December 31, 2017
Shares available to be issued under warrants

12,446,370
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.088% 0.420%
Expected term to exercise2.43 years
 1.79 years
Annualized volatility73.53% 47.35%
Dividend rate0.00% 0.00%
 As of December 31, 2019 As of December 31, 2018
Shares available to be issued under warrants12,401,262
 12,401,262
Exercise price£1.7238
 £1.7238
Risk-free interest rate0.540% 0.760%
Expected term to exercise2.34 years
 3.34 years
Annualized volatility65.56% 60.72%
Dividend rate0.00% 0.00%

The figures disclosed above relating to the issue
152


As per the reporting date, the Company updated the underlying assumptions and calculated a fair value of these warrants amounting to £1.3£0.9 million. The variance of £6.7£(1.6) million is recorded as finance income in the Consolidated Statement of Comprehensive Income.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2019 2018
 £'000s £'000s
At January 12,492
 1,273
Fair value adjustments recognized in profit or loss(1,597) 1,219
At December 31895
 2,492
For the amount recognized at December 31, 2019, the effect when the following parameter deviates up or down is presented in the below table.
Volatility
(up / down
10% pts)
£'000s
Variable up1,306
Base case, reported fair value895
Variable down535
19. Trade and other payables
 As of December 31, 2019 As of December 31, 2018
 £'000s £'000s
Trade payables1,455
 2,839
Other payables
 12
Accruals6,806
 4,882
Total trade and other payables8,261
 7,733
20. Assumed contingent liability related to the business combination
The value of the assumed contingent liability as of December 31, 2019 is £1.1 million (2018: £1.0 million). The increase in value of the assumed contingent liability during 2019 amounted to £0.1 million (2018: £0.1 million).
The assumed contingent liability relates to the acquisition, in 2006, of rights to certain patents and patent applications relating to ensifentrine and related compounds under which the Company is obliged to pay royalties to Ligand (see 2.12).
The assumed contingent liability is measured at the expected value of the milestone payment and royalty payments. This expected value is based on estimated future royalties payable, derived from sales forecasts, and an assessment of the probability of success using standard market probabilities for respiratory drug development. The risk-weighted value of the assumed contingent arrangement is discounted back to its net present value applying an effective interest rate of 12%.
The assumed contingent liability is accounted for as a liability and its value is measured at amortized cost using the effective interest rate method, and is re-measured for changes in estimated cash flows or when the probability of success changes.

F-35153

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017
19. Warrants (Continued)2019

Re-measurements relating to changes in estimated cash flows and probabilities of success are recognized in the IP R&D asset it relates to ("see 2.7"). This is a change in accounting policy for the year ended December 1, 2019 (see 2.17). The unwind of the discount is recognized in finance expense.
The Company considers that probabilities of success will change when it moves from one stage of clinical development to another. See note 4 for a further discussion of this.
 
Derivative
financial
instrument
 
Derivative
financial
instrument
 2016 2017
 £'000s £'000s
At January 1
 7,923
On issuance of shares8,991
 
Fair value adjustments recognized in profit or loss(1,068) (6,650)
At December 317,923
 1,273
 2019 2018
 £'000s £'000s
January 1996
 875
Impact of changes in foreign exchange rates(12) 15
Unwinding of discount factor119
 106
December 311,103
 996

There is no material difference between the fair value and carrying value of the financial liability.
For the amount recognized as at December 31, 2017,2019, of £1,103 thousand, the effect when some of theseif underlying parameters wouldassumptions were to deviate up or down is presented in the below table.following table (assuming the probability of success does not change):
 
Volatility
(up / down
10% pts)
 
Time to
maturity
(up / down
6 months)
 £'000s £'000s
Variable up1,921
 1,677
Base case, reported fair value1,273
 1,273
Variable down694
 843
20. Financial commitments


Discount rate
(up / down
1 % pt)
Revenue
(up / down
10 % pts)
 £'000s£'000s
Variable up1,0671,135
Base case, reported fair value1,1031,103
Variable down1,1411,071

As of December 31, 2017, the Company was committed to making the following payments under non-cancellable operating leases related to its facilities.
 
Land and
Buildings
 
Land and
Buildings
 2016 2017
 £'000s £'000s
Operating lease obligations:   
Within one year270
 291
Between one and five years
 277
Total270
 568

F-36154

VERONA PHARMA PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (Continued)
FOR THE YEARTHREE YEARS ENDED DECEMBER 31, 2017

2019

21.22. Related parties transactions and other shareholder matters
(i)    Related party transactions
The Directors have authority and responsibility for planning, directing and controlling the activities of the Company and they therefore comprise key management personnel as defined by IAS 24, ("Related Party Disclosures").
Directors and key management personnel remuneration is disclosed in note 8.
(ii)    Other shareholder matters
The Company has entered into the following arrangements with parties who are significant shareholders of the Company, though they are not classed as related parties.
The Company entered into relationship agreements with Vivo CapitalVentures Fund VIII ("VII, L.P., Vivo Ventures VII Affiliates Fund, L.P., Vivo Ventures Fund VI, L.P., Vivo Ventures VI Affiliates Fund, L.P. (collectively, "Vivo Capital"), Orbimed Private Investments VI L.P. ("Orbimed"), and Abingworth Bioventures VI L.P. ("Abingworth"), and Arix Bioscience plc ("Arix") and Arthurian Life Sciences SPV GP Limited, ("Arthurian"). As agreed in these relationship agreements, the above parties invested in the Company as part of the July 2016 Placement, and the Company agreed to appoint representatives designated by Vivo Capital, OrbiMed Abingworth, and Arix and Arthurian,Abingworth to the board of directors, who are Dr. Mahendra Shah, Mr. Rishi Gupta, and Dr. Andrew Sinclair and Dr. Ken Cunningham respectively.Sinclair.
The appointment rights within the relationship agreement with Arix and Arthurian terminated on closing of the Global Offering on April 26, 2017;2017. Dr Cunningham has agreed to continue to serve on the Company's board of directors as an independent director. The respective appointment rights under the remaining relationship agreements will automatically terminate upon (i) Vivo Capital, OrbiMed or Abingworth (or any of their associates), as applicable, ceasing to beneficially hold 6.5% of the issued ordinary shares, or (ii) the ordinary shares ceasing to be admitted to AIM.
Piers Morgan, Chief Financial Officer of the Company, and his spouse purchased 88,415 ordinary shares in total for £53 thousand from the market in the year ended December 31, 2019 (2018: £nil).
Dr. Jan-Anders Karlsson, Chief Executive Officer of the Company, purchased 3,250 ordinary shares for £5 thousand from the market in the year ended December 31, 2018. There was no similar transaction as at December 31, 2019.
Dr. David Ebsworth, Chairman of the Company, purchased 247,600 ordinary shares for £124 thousand from the market in the year ended December 31, 2019 (2018: £14 thousand).
At December 31, 2018, there was a receivable of £126 thousand due from one director and two key management personnel relating to tax due on RSUs that vested in the year ended December 31, 2018. This receivable was repaid, together with interest at a rate of 3.9% per annum, by March 6, 2019. There was no such balance as at December 31, 2019.
In the year ended December 31, 2019, a director provided consultancy services for £26 thousand (2018: £26 thousand).
22. Events after the reporting date
On February 3, 2020, the Company announced the appointment of David Zaccardelli as chief executive officer with effect from February 1, 2020, following the retirement of Jan-Anders Karlsson, PhD. The Company also entered into a management rights agreement with Novo A/S under which Novo A/S was entitled to appoint an observer to the Board;announced the appointment rights within the management rights agreement terminated on closing of the Global Offering on April 26, 2017.Mark Hahn as chief financial officer with effect from March 1, 2020, as successor to Piers Morgan.





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