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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549


FORM 10-K

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017.

2020.

OR

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________ to ________.

Commission File Number 1-32639

TG THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware

36-3898269

(State or other jurisdiction of

incorporation or organization)

36-3898269

(I.R.S. Employer

Identification No.)

2 Gansevoort St.

9th, 9th Floor

New York, New York

10014

(Address of principal executive offices)

10014

(Zip Code)

Registrant’s telephone number, including area code: (212) (212) 554-4484

Securities registered pursuant to Section 12(b) of the Act:

Title of Class

Trading Symbol(s)

Exchange Name

Common Stock, Par Valuepar value $0.001 Per Share

(Title of Class)

The

TGTX

Nasdaq Capital Market

(Name of Each Exchange on Which Registered)

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

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 if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Accelerated filer

Non-accelerated filer ☐ (Do not check if smaller reporting company)

Smaller reporting company

Emerging growth company

If an emerging growth company, 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 provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes No ☒

The aggregate market value of voting common stock held by non-affiliates of the registrant (assuming, for purposes of this calculation, without conceding, that all executive officers and directors are “affiliates”) was $490,249,542$2,163,126,348 as of June 30, 2017,2020, based on the closing sale price of such stock as reported on the NASDAQ Capital Market.

Market.

There were 75,579,785140,586,187 shares of the registrant’s common stock, $0.001 par value, outstanding as of March 1, 2018.

February 24, 2021.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s Proxy Statement for the 20182021 Annual Meeting of Stockholders are incorporated by reference in Part III of this Annual Report on Form 10-K.


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TG THERAPEUTICS, INC.

ANNUAL REPORT ON FORM 10-K

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2017

2020

TABLE OF CONTENTS

Page

Page

SPECIAL CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS

 1

2

SUMMARY RISK FACTORS

3

PART I

ITEM 1

PART I

Business                                                                                                      

2

5

ITEM 1A1

Risk Factors                                                                                                      

Business

24

5

ITEM 21A

Properties                                                                                                      

Risk Factors

52

32

ITEM 32

Legal Proceedings                                                                                                      

Properties

52

77

ITEM 3

Legal Proceedings

77

ITEM 4

Mine Safety Disclosures

52

77

PART II

77

ITEM 5

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

53

77

ITEM 6

Selected Financial Data

56

79

ITEM 7

Management’s Discussion and Analysis of Financial Condition and Results of Operations

57

80

ITEM 7A

Quantitative and Qualitative Disclosure About Market Risk

69

88

ITEM 8

Financial Statements and Supplementary Data

69

88

ITEM 9

Changes in and Disagreements With Accountants on Accounting and Financial Disclosures

69

88

ITEM 9A

Controls and Procedures

69

89

ITEM 9B

Other Information

72

91

PART III

91

ITEM 10

Directors, Executive Officers and Corporate Governance

72

91

ITEM 11

Executive Compensation

72

91

ITEM 12

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

72

91

ITEM 13

Certain Relationships and Related Transactions, and Director Independence

72

91

ITEM 14

Principal AccountantAccounting Fees and Services

72

91

PART IV

92

ITEM 15

Exhibits and Financial Statement Schedules

73

92

This Annual Report on Form 10-K contains trademarks and trade names of TG Therapeutics, Inc., including our name and logo. All other trademarks, service marks, or trade names referenced in this Annual Report on Form 10-K are the property of their respective owners.

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SPECIAL CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS

Certain matters discussed in this report, including matters discussed under the captioncaptions “Business” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” may constitute forward-looking statements for purposes of the Securities Act of 1933, as amended, or the Securities Act, and the Securities Exchange Act of 1934, as amended, or the Exchange Act, and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from the future results, performance or achievements expressed or implied by such forward-looking statements. The words "anticipate," "believe," "estimate," "may," "expect" and similar expressions are generally intended toIn some cases, you can identify forward-looking statements. Our actual results may differ materially fromstatements by words such as “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “seek,” “should,” “target,” “will,” “would” or the results anticipated innegative of these words or other comparable terminology, although not all forward-looking statements due to a variety of factors, including, without limitation, those discussed under the captions “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this report, as well as other factors which may be identified from time to time in our other filings with the Securities and Exchange Commission, or the SEC, or in the documents where such forward-looking statements appear. contain these identifying words.

All written or oral forward-looking statements attributable to us are expressly qualified in their entirety by these cautionary statements. Such forward-looking statements include, but are not limited to, statements about our:

expectations for increases or decreases in expenses;
expectations for the clinical and pre-clinical development, manufacturing, regulatory approval, and commercialization of our pharmaceutical product candidates or any other products we may acquire or in-license;
use of clinical research centers and other contractors;
expectations as to the timing of commencing or completing pre-clinical and clinical trials and the expected outcomes of those trials;
expectations for incurring capital expenditures to expand our research and development and manufacturing capabilities;
expectations for generating revenue or becoming profitable on a sustained basis;
expectations or ability to enter into marketing and other partnership agreements;
expectations or ability to enter into product acquisition and in-licensing transactions;
expectations or ability to build our own commercial infrastructure to manufacture, market and sell our drug candidates;
products being accepted by doctors, patients or payors;
ability to compete against other companies and research institutions;
ability to secure adequate protection for our intellectual property;
ability to attract and retain key personnel;
availability of reimbursement for our products;
estimates of the sufficiency of our existing cash and cash equivalents and investments to finance our operating requirements, including expectations regarding the value and liquidity of our investments;
stock price and its volatility; and
expectations for future capital requirements.
The forward-looking statements contained in this report reflect our views and assumptions only as of the date this report is signed. Except as required by law, we assume no responsibility for updating any forward-looking statements.
We qualify all of our forward-looking statements by these cautionary statements. In addition, with respect to all of our forward-looking statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.  Such forward-looking statements include, but are not limited to, statements about our:

our ability to establish and maintain a commercial infrastructure, and to successfully launch, market and sell UKONIQTM (umbralisib) in the U.S. and any products for which we obtain regulatory approval in the future;
the commercialization of UKONIQ and any future products, including the rate and degree of market acceptance and pricing and reimbursement;
the timing of and our ability to apply for, obtain and maintain regulatory approvals for our product candidates;
the initiation, timing, progress and results of our pre-clinical studies and clinic trials, including, without limitation, UNITY-CLL Phase 3 clinical trial, ULTIMATE I and II Phase 3 clinical trial and UNITY-NHL Phase 2b clinical trial;
our ability to advance drug candidates into, and successfully complete, clinical trials;
our ability to establish and maintain contractual relationships, on commercially reasonable terms, with third parties for manufacturing, distribution and supply, and a range of other support functions for our clinical development and commercialization efforts;
the implementation of our business model, strategic plans for our business, drug candidates and technology;
the scope of protection we are able to establish and maintain for intellectual property rights covering our products and product candidates;
estimates of our expenses, future revenues, capital requirements and our needs for additional financing;
our ability to maintain and establish collaborations and enter into strategic arrangements, if desired;
our financial performance and cash burn management; and
developments relating to our competitors and our industry.

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SUMMARY RISK FACTORS

Our business is subject to a number of risks of which you should be aware before making an investment decision. The risks described below are a summary of the principal risks associated with an investment in us and are not the only risks we face.  You should carefully consider these risks, the risk factors in Item IA, and the other reports and documents that we have filed with the Securities and Exchange Commission (“SEC”).

Risks Related to Commercialization

We have limited experience as a commercial company and the marketing and sale of UKONIQ (umbralisib) or any future approved products may be less successful than anticipated or unsuccessful.
If UKONIQ or any future approved product does not achieve broad market acceptance among physicians, patients, healthcare payors, and the medical community, the revenues that we generate from product sales will be limited.
If we are unable to maintain regulatory approval for UKONIQ or obtain or maintain regulatory approval for our drug candidates, or experience significant delays in doing so, our business will be materially harmed.
If the market opportunities for UKONIQ and future approved products are smaller than we estimate or if any approval that we obtain is based on a narrower patient population, our revenue will be adversely affected.
We face substantial competition for treatments for our target indications, which may result in others commercializing drugs before or more successfully than we do resulting in the reduction or elimination of our commercial opportunity.
If we are unable to establish additional commercial capabilities and infrastructure, we may be unable to generate sufficient revenue to sustain our business.
Product liability lawsuits against us could cause us to incur substantial liabilities and could limit commercialization of any of our approved products or drug candidates that we may develop.

Risks Related to our Financial Position and Need for Additional Capital

We have incurred significant operating losses since our inception and anticipate that we will incur continued losses for the foreseeable future.
We will need to raise substantial additional funding. If we are unable to raise capital when needed, we will be forced to delay, reduce or eliminate some of our drug development programs or commercialization efforts.
Our level of indebtedness and debt service obligations could adversely affect our financial condition and may make it more difficult for us to fund our operations.

Risks Related to Drug Development and Regulatory Approval

We may incur additional costs or experience delays in completing, or ultimately be unable to complete, the clinical development and commercialization of our drug candidates.
Our products and product candidates may cause undesirable side effects that could delay or prevent their regulatory approval or significantly limit their commercial profile following marketing approval, if any.
Because results of preclinical studies and early clinical trials are not necessarily predictive of future results, any product candidate we advance may not have favorable results in later clinical trials or receive regulatory approval.  Moreover, interim, “top-line,” and preliminary data from our clinical trials that we announce or publish may change, or the perceived product profile may be impacted, as more patient data or additional endpoints (including efficacy and safety) are analyzed.
Any product candidates we may advance through clinical development are subject to extensive regulation, which can be costly and time consuming, cause unanticipated delays or prevent the receipt of the required approvals.
A Fast Track or Breakthrough Therapy designation by the FDA may not actually lead to a faster development, regulatory review or approval process.
Although we have received orphan drug designation for UKONIQ and for some of our drug candidates for specified indications and may seek orphan drug designation for additional indications or drug candidates, we may be unsuccessful in obtaining or may be unable to maintain the benefits associated with orphan drug status.

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Risks Related to Governmental Regulation of the Pharmaceutical Industry

We are subject to extensive regulation, including new legislation, regulatory proposals and managed care initiatives, that may increase our costs of compliance and adversely affect our ability to market our products, obtain collaborators and raise capital.
If we fail to comply with various healthcare laws and regulations, we may incur losses or be subject to liability.
If we fail to fail to comply with regulatory requirements, any product for which we obtain marketing approval could be subject to restrictions or withdrawal from the market and we may be subject to penalties.

Risks Related to our Dependence on Third Parties

If the third parties on which we rely to conduct our clinical trials and generate clinical, preclinical and other data necessary to support our regulatory applications do not perform their services as required, we may not be able to obtain regulatory approval for or commercialize our product candidates when expected or at all.
Our reliance on third parties for commercial and clinical supply of our products and product candidates increases the risk that we will not have sufficient quantities of our products or product candidates or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.
Because we have in-licensed our products and product candidates from third parties, any dispute with or non-performance by our licensors will adversely affect our ability to develop and commercialize the applicable product.

Risks Related to Intellectual Property

Our success depends upon our ability to obtain and protect our intellectual property and if the scope of our patent protection obtained is not sufficiently broad, our competitors could develop and commercialize products similar or identical to ours, and our ability to successfully commercialize our products may be impaired.
Our patent protection could be reduced or eliminated for non-compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies.
We may need to license certain intellectual property from third parties, and such licenses may not be available or may not be available on commercially reasonable terms.
If we or our partners are sued for infringing intellectual property rights of third parties, it will be costly and time consuming, and an unfavorable outcome in that litigation would have a material adverse effect on our business.
If we are unable to protect the confidentiality of our trade secrets, our business and competitive position may be harmed.

Risks Related to COVID-19

Public health issues, and specifically the pandemic caused by COVID-19, could have an adverse impact on our financial condition and results of operations and other aspects of our business.

General Risks Related to Our Business Organization and Governance, Strategy, Employees and Growth Management

We will need to develop and expand our business, which could disrupt our operations.
Our ability to continue our clinical development and commercialization activities will depend on our ability to attract and maintain key management and other personnel.
Certain of our executive officers, directors and other stockholders own more than 10% of our outstanding common stock and may be able to influence our management and the outcome of matters submitted to shareholders for approval.
Certain anti-takeover provisions in our charter documents and Delaware law could make a third-party acquisition more difficult, which could limit the price investors might be willing to pay for our common stock.

Our stock price is, and we expect it to remain, volatile, which could limit investors ability to sell stock at a profit.

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PART I

Unless the context requires otherwise, references in this report to “TG,” “Company,” “we,” “us” and “our” refer to TG Therapeutics, Inc. and our subsidiaries.

Our name, logo and UKONIQ are trademarks or tradenames of TG Therapeutics, Inc.  All other trademarks, service marks or other tradenames appearing in this Annual Report on Form 10-K are the property of their respective owners.

ITEM 1. BUSINESS.

OVERVIEW

             We are

TG Therapeutics is a fully-integrated, commercial stage biopharmaceutical company focused on the acquisition, development and commercialization of novel treatments for B-cell malignancies and autoimmune diseases. In addition to an active research pipeline including five investigational medicines across these therapeutic areas, we have received accelerated approval from the U.S. Food and Drug Administration (FDA) for UKONIQ(umbralisib), for the treatment of adult patients with relapsed or refractory marginal zone lymphoma who have received at least one prior anti-CD20-based regimen and relapsed or refractory follicular lymphoma who have received at least three prior lines of systemic therapies. Currently, we are developinghave two therapies targeting hematologic malignancies. TG-1101 (ublituximab) is a novel, glycoengineered monoclonal antibody that targets a unique epitope on the CD20 antigen found on mature B-lymphocytes. We are also developing TGR-1202 (umbralisib), an orally available PI3K delta inhibitor. The delta isoform of PI3K is strongly expressed in cells of hematopoietic origin and is believed to be important in the proliferation and survival of B-lymphocytes. Both TG-1101 and TGR-1202, or the combination which is referred to as "U2," areprograms in Phase 3 clinical development for the treatment of patients with hematologic malignancies,relapsing forms of multiple sclerosis (RMS) and patients with TG-1101 alsochronic lymphocytic leukemia (CLL) and several investigational medicines in Phase 31 clinical development for patients with multiple sclerosis. Additionally, the Company has recently brought its anti-PD-L1 monoclonal antibody into Phase 1 development and aims to bring additional pipeline assets into the clinic in the future. 

development. We also actively evaluate complementary products, technologies and companies for in-licensing, partnership, acquisition and/or investment opportunities. To date,

FDA Accelerated Approval of UKONIQ

On February 5, 2021, we announced that the FDA granted accelerated approval of umbralisib, now referred to as UKONIQ, for the treatment of adult patients with relapsed or refractory Marginal Zone Lymphoma (MZL) who have not received at least one prior anti-CD20 based regimen and adult patients with relapsed or refractory Follicular Lymphoma (FL) who have received at least three prior lines of systemic therapy. UKONIQ is the first and only, oral, once daily, inhibitor of phosphoinositide 3 kinase (PI3K) delta and casein kinase 1 (CK1) epsilon. Accelerated approval was granted for these indications based on overall response rate (ORR) data from the Phase 2b UNITY-NHL Trial (NCT02793583). Continued approval for these indications may be contingent upon verification and description of clinical benefit in a confirmatory trial. This application was granted priority review for the saleMZL indication. In addition, UKONIQ was granted Breakthrough Therapy Designation (BTD) for the treatment of anyMZL and orphan drug designation (ODD) for the treatment of our drug candidates in any marketMZL and therefore,FL.

Current Phase 3 or Registration Directed Clinical Trial Highlights:

We have not generated any product salesinitiated and enrolled several Phase 3 and registration-directed Phase 2b clinical trials (i.e., clinical trials that may support a marketing application for approval). The following are highlights from our drug candidates.current Phase 3 trials and registration-directed Phase 2b clinical trials:

UNITY-NHL Phase 2b Trial: UNITY-NHL is a broad Phase 2b registration-directed clinical trial designed to evaluate the efficacy and safety of umbralisib monotherapy and ublituximab and umbralisib (U2) combinations in patients with previously treated non-Hodgkin’s lymphoma (NHL). The trial is currently enrolling patients with relapsed/refractory marginal zone lymphoma (MZL), follicular lymphoma (FL), small lymphocytic lymphoma (SLL), and mantle cell lymphoma (MCL) to receive umbralisib either alone or in combination.
oUMBRALISIB MONOTHERAPY MZL/FL COHORTS: The MZL and the FL single agent umbralisib cohorts of the UNITY-NHL trial met their primary endpoint of ORR. Data from these cohorts were presented in December 2020 at the 62nd American Society of Hematology annual meeting.  In addition, data from the MZL and FL monotherapy cohorts were used to support a New Drug Application (NDA) for umbralisib to treat adult patients with relapsed or refractory MZL and FL, which was approved by the FDA on February 5, 2021.
UNITY-CLL Phase 3 Trial Evaluating Umbralisib plus Ublituximab (U2): UNITY-CLL is a global Phase 3 randomized controlled clinical trial comparing the U2 combination to an active control arm of obinutuzumab plus chlorambucil in patients with both treatment naive and relapsed or refractory CLL. Two additional arms evaluating single agent ublituximab and single agent umbralisib were also enrolled for purposes of evaluating contribution in the U2 combination regimen. The primary

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endpoint for this study is progression free survival (PFS). This trial is conducted under Special Protocol Assessment (SPA) with the FDA. In early December 2020, we initiated a rolling submission of a Biologics License Application (BLA) for ublituximab in combination with umbralisib as a treatment for patients with CLL, with the completion of the rolling submission targeted for the first half of 2021.  On December 7, 2020, we presented safety and efficacy results from the UNITY- CLL trial at the American Society of Hematology (ASH) annual meeting, demonstrating that U2 significantly improved PFS over obinutuzumab plus chlorambucil (HR=0.54, p<0.0001) as well as ORR (p<0.001) in patients with CLL; with consistent PFS improvement across subgroups, including treatment naïve CLL (HR=0.48) and relapsed/refractory CLL (HR=0.60).
ULTIMATE I & II Trials Evaluating Single Agent Ublituximab in RMS: ULTIMATE I and ULTIMATE II are two independent Phase 3 trials. Each trial is a global, randomized, multi-center, double-blinded, double-dummy, active-controlled study comparing ublituximab to teriflunomide in subjects with relapsing forms of Multiple Sclerosis (RMS). The primary endpoint for each study is Annualized Relapse Rate (ARR) following 96 weeks of treatment which we intend to use to support a submission for approval of ublituximab in RMS. These trials are conducted under a SPA with the FDA. In December 2020, we announced positive topline results from the ULTIMATE I & II Phase 3 trials. Both studies met their primary endpoint of significantly reducing ARR (p<0.005 in each study) with ublituximab demonstrating an ARR of <0.10 in each of the studies with relative reductions of approximately 60% and 50% in ARR over teriflunomide observed in ULTIMATE I & II, respectively. Further analyses of the ULTIMATE I & II studies including safety and secondary endpoints are being conducted and detailed data is targeted to be presented in first half of 2021. Additionally, data from these studies are intended to support a BLA submission for ublituximab in RMS targeted in mid-year 2021.
ULTRA-V Phase 2 Trial Evaluating U2 plus Venetoclax in CLL: ULTRA-V is a Phase 2 open-label, multicenter, registration-directed clinical trial designed to investigate the efficacy and safety of U2 combined with venetoclax in subjects with treatment-naïve and relapsed or refractory CLL. The primary endpoint for the Phase 2 component of this study is ORR and Complete Response (CR) rate. The primary endpoints for this study are ORR and Complete Response (CR) rate.


CORPORATE INFORMATION

We were incorporated in Delaware in 1993. Our executive offices are located at 2 Gansevoort St., 9thStreet, 9th Floor, New York, New York 10014. Our telephone number is 212-554-4484,1-877-575-TGTX(8489), and our e-mail address is info@tgtxinc.com.

We maintain a website with the address www.tgtherapeutics.com.www.tgtherapeutics.com and maintain various social media accounts, including but not limited to Twitter and LinkedIn. We make available free of charge through our Internetcorporate website our annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, andas well as any amendments to these reports, as soon as reasonably practicable after we electronically file such material with, or furnish such material to, the SEC. We are not including the information on our website or our social media accounts as a part of, nor incorporating iteither by reference into, this report. You may read and copy any such reports and amendments thereto at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549 on official business days during the hours of 10:00 a.m. to 3:00 p.m. Please call the SEC at 1-800-SEC-0330 for information on the Public Reference Room. Additionally, theThe SEC maintains a website that contains annual, quarterly, and current reports, proxy statements, and other information that issuers (including us) file electronically with the SEC. The SEC’s website address is http://www.sec.gov.

In addition, we intend to use our media and investor relationscorporate website, SEC filings, press releases, public conference calls and webcasts as well as social media to communicate with our subscribers and the public about the Company, its services and other issues.public. It is possible that the information we post on social media could be deemed to be material information. Therefore, in light of the SEC’s guidance, we encourage investors, the media and others interested in the Companyus to review the information we post on the U.S. social media channels listed on our website.


STRATEGY

As a fully-integrated, commercial stage biopharmaceutical company focused on the acquisition, development and commercialization of novel treatments for B-cell malignancies and autoimmune diseases, our key corporate objectives include:

Successfully commercializing UKONIQ in the U.S. for relapsed or refractory MZL and FL;
Completing U.S. regulatory submissions for U2 in CLL and ublituximab in MS;
Obtaining FDA approval for U2 in CLL, and ublituximab in MS;
Preparing for additional commercial launches and scaling commercialization capabilities to ensure, if approved, broad access to patients for the approved indications for umbralisib and ublituximab;
Developing U2 in NHL as well as in combination with other novel agents for CLL;

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Advancing cosibelimab (TG-1501), TG-1701, and TG-1801 through clinical development and defining potential regulatory paths for these drug candidates either as single agents and in combination with umbralisib, ublituximab, and/or U2;
Building upon the MS clinical program to develop ublituximab in additional MS indications and other autoimmune diseases;
Continuing to expand our pipeline with mechanisms of importance to B-cell mediated diseases;
Evaluating potential strategic collaborations to maximize the value of our programs and B-cell directed platform; and
Maintaining our “patient first” culture as we grow our business.

Our Approach and Platform

Our approach to drug development is centered on developing solutions for patients rather than developing single therapies for a disease. Our process begins by identifying validated targets against B-cell diseases, and then searching for and, ideally, acquiring what we believe to be “best-in-class” compounds with complementary mechanisms against these targets, with the goal of developing multi-drug proprietary targeted combinations, which can potentially offer new treatment options for patients in need.

Our preference is to identify targets for which there is human clinical proof of concept that the mechanism is active in B-cell diseases and then to identify drug candidates that effectively modulate the desired molecular target. We identify these drug candidates at academic centers of excellence or in development at biotech companies or pharmaceutical companies globally. Our current drug candidates were acquired through license agreements, collaborations, or joint ventures with biopharmaceutical companies located in the US, France, Switzerland, India, and China. This approach enables us to minimize target risk while looking for the best available drug candidates around the world. By focusing on B-cell diseases and targets with a known activity profile, we believe that we can quickly identify the patients most likely to respond, resulting in a more efficient development path with the potential for a greater likelihood of success. Importantly, since our drug candidates have complementary mechanisms of action, we can rapidly explore combination therapies, which we believe is essential to improving outcomes for patients and may hold the key to potentially identifying cures for patients with B-cell diseases.

Our approach is enabled by our clinical development platform which includes:

An internal team with a deep understanding of B-cell diseases and significant experience successfully pioneering innovative treatments for these complex diseases; and
A vast external network of more than 350 community and academic clinical trial sites with significant experience researching B-cell diseases.

B-CELL DISEASES OVERVIEW

The constellation of diseases that arise from abnormally growing or behaving B-cells is substantial. One group of diseases related to abnormal B-cell growth is malignant lymphomas, including NHL and CLL. There are over 80 types of NHL, approximately 40 to 50 of which are due to malignant B-cells. These diseases can include some of the slowest and fastest growing cancers known to medicine. Some of the more common B-cell malignancies include MZL, FL, SLL and CLL.

The other major group of diseases caused by abnormally functioning B-cells is autoimmune disorders. These diseases may result from inappropriate production of antibodies from the B-cells. These antibodies cannot discriminate “self” from “non-self,” and inadvertently mount a disabling immune response against normal organs. Examples of common and very debilitating autoimmune disorders for which abnormally functioning B-cells have been implicated include MS and rheumatoid arthritis (RA). 


The Company’s current clinical programs are focused on MZL, FL, CLL and MS.

Marginal Zone Lymphoma Overview

MZL comprises a group of indolent (slow growing) mature B-cell non-Hodgkin lymphomas (NHLs). MZL is generally considered a chronic and incurable disease. With an annual incidence of approximately 8,200 newly diagnosed patients in the United States MZL is the third most common B-cell NHL, accounting for approximately ten percent of all NHL cases. MZL consists of three different subtypes: extranodal MZL of the mucosal-associated lymphoid tissue (MALT), nodal marginal zone lymphoma (NMZL), and splenic marginal zone lymphoma (SMZL).

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Follicular Lymphoma Overview

FL is typically an indolent form of NHL that arises from B-lymphocytes. It is the second most common form of NHL. FL is generally not curable and is considered a chronic disease, as patients can live for many years with this form of lymphoma. With an annual incidence in the United States of approximately 13,200 newly diagnosed patients FL is the most common indolent lymphoma accounting for approximately 17 percent of all NHL cases.

Chronic Lymphocytic Leukemia Overview

Chronic lymphocytic leukemia (CLL) is the most common type of adult leukemia. It is estimated there will be more than 20,000 new cases of CLL diagnosed in the United States in 2020 and approximately 45,000 new cases globally in 2020.Although signs and symptoms of CLL may disappear for a period of time after initial treatment, the disease is considered incurable and many people will require additional treatment due to the return of malignant cells.

Multiple Sclerosis Overview

Relapsing multiple sclerosis (RMS) is a chronic demyelinating disease of the central nervous system (CNS) and includes people with relapsing-remitting multiple sclerosis (RRMS) and people with secondary progressive multiple sclerosis (SPMS) who continue to experience relapses. RRMS is the most common form of multiple sclerosis (MS) and is characterized by episodes of new or worsening signs or symptoms (relapses) followed by periods of recovery. It is estimated that nearly 1 million people are living with MS in the United States and approximately 85% are initially diagnosed with RRMS.The majority of people who are diagnosed with RRMS will eventually transition to SPMS, in which they experience steadily worsening disability over time. Worldwide, more than 2.3 million people have a diagnosis of MS.

OUR PRODUCTS UNDER DEVELOPMENT

We have leveraged our B-cell platform to develop a robust drug pipeline of both targeted orally available, potent and selective small molecule kinase inhibitors and intravenously delivered “off-the-shelf” immunotherapies that leverage the patient’s own immune system to fight cancer. We currently license worldwide development and commercial rights, subject to certain limited geographical restrictions, to all of our pre-clinical and clinical programs. The following table summarizes our most advanced drug candidates as of February 2021.

Clinical Drug Candidate

(molecular target)

Initial Target Disease

Stage of Development

(pivotal study)

Ublituximab (anti-CD20/mAb)

Chronic Lymphocytic Leukemia

Phase 3 trial (UNITY-CLL)

Multiple Sclerosis

Phase 3 trials (ULTIMATE I and II)

Umbralisib (PI3K delta and CK1 epsilon inhibitor)

Chronic Lymphocytic Leukemia

Phase 3 trial (UNITY-CLL)

Marginal Zone Lymphoma

Phase 2b trial (UNITY-NHL)

Follicular Lymphoma

Phase 2b trial (UNITY-NHL)

Cosibelimab (anti-PDL1)

B-cell Cancers

Phase 1 trial

TG-1701 (BTK inhibitor)

B-cell Cancers

Phase 1 trial 

TG-1801 (anti-CD47/CD19)

B-cell Cancers

Phase 1 trial

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TG-1101 (ublituximab)

Table of Contents

Ublituximab Overview

TG-1101 (ublituximab)

Ublituximab is a chimeric,an investigational glycoengineered monoclonal antibody that targets a unique epitope on CD20-expressing B-cells. When ublituximab binds to the CD20 antigen found on the surfaceB-cell it triggers a series of B-lymphocytes developed to aid in the depletion of circulating B-cells. We hold exclusive worldwide rights to developimmunological reactions (including antibody-dependent cellular cytotoxicity (ADCC) and commercialize TG-1101 for all indications, except for the territories of France and Belgium which have been retained by LFB Biotechnologies (“LFB”), and South Korea and Southeast Asia which were licensed by us to Ildong Pharmaceutical Co. Ltd (“Ildong”) in November 2012.

Generally, anti-CD20 antibodies are believed to exert their B-cell depleting effects through three primary mechanisms: antibody dependent cell-mediated cytotoxicity (“ADCC”), complement dependent cytotoxicity (“CDC”)(CDC), and direct or programmed cell death (“DCD” or “PCD”). TG-1101leading to destruction of the cell. Additionally, ublituximab is uniquely designed to lack certain sugar molecules normally expressed on the antibody. Removal of these sugar molecules, a process called glycoengineering, has been specifically glycoengineeredshown to enhance the potency of ublituximab, especially the ADCC activity,activity.

Targeting CD20 using monoclonal antibodies has proven to be an important therapeutic approach for the management of B-cell malignancies and autoimmune disorders, both diseases driven by the abnormal growth or function of B-cells.

Ublituximab is being evaluated in pivotal and early phase clinical trials for patients with NHL, CLL, and RMS.   In December 2020, we announced initiation of a rolling BLA submission of ublituximab in combination with umbralisib for the treatment of CLL based on the results of the UNITY-CLL Phase 3 trial.

Umbralisib - UKONIQ Overview

Umbralisib is an oral inhibitor of PI3K-delta and CK1-epsilon administered once daily. The phosphoinositide-3-kinases (PI3Ks) are a family of enzymes involved in many important cellular functions, including cell proliferation and survival, cell differentiation, intracellular trafficking, and immunity.

There are 4 isoforms of PI3K (alpha, beta, delta, and gamma), of which should enhance its abilitythe delta isoform is highly expressed in hematopoietic cells and malignant lymphoid diseases. Dysregulation of the PI3K pathway is among one of the most commonly mutated pathways across all of cancer biology.  Umbralisib is highly selective for the delta isoform of PI3K and has limited to deplete B-cellsno impact on the other PI3K isoforms. Umbralisib also inhibits casein kinase 1 epsilon (CK1-epsilon). CK1-epsilon is a major regulator of oncoprotein translation, which drives growth and survival of lymphoma cells, including c-Myc. A manuscript titled, "Silencing c-Myc Translation as a Therapeutic Strategy through Targeting PI3K Delta and CK1 Epsilon in Hematological Malignancies," was published in the First Edition section of Blood, the Journal of the American Society of Hematology. Importantly, the manuscript for the first time reported on umbralisib’s unique complimentary mechanism of inhibiting the protein kinase casein kinase-1 epsilon (CK1e), which may improve its anti-cancer effects when comparedlead to Rituxan®,a differentiated safety profile by supporting T regulatory cells, a part of the leadingimmune system necessary to protect against autoimmune mediated toxicities.

We are commercializing umbralisib in the U.S. for the treatment of relapsed or refractory MZL and FL under the brand name UKONIQ.   In February 2021, we obtained accelerated approval of UKONIQ by the FDA for the treatment of adult patients with relapsed or refractory MZL who have received at least 1 prior anti-CD20-based regimen and adult patients with relapsed or refractory FL who have received at least 3 prior lines of systemic therapy.  Both indications were approved based on overall response rate observed in the UNITY-NHL trial.  Continued approval for these indications may be contingent upon verification and description of clinical benefit in a confirmatory trial.  In December 2020, we announced initiation of a rolling BLA submission of umbralisib in combination with ublituximab for the treatment of CLL based on the results of the UNITY-CLL trial.  In addition, we are studying umbralisib in combination regimens with ublituximab and other treatments, including venetoclax and TG-1701, our investigational Bruton's tyrosine kinase (BTK) inhibitor.

Early Clinical Development of Ublituximab and Umbralisib

Single Agent Ublituximab (TG-1101) in Relapsed/Refractory NHL & CLL

In February 2017, data from the Phase 1/2 trial of ublituximab (TG-1101) were published in the British Journal of Haematology in a manuscript titled “A phase 1/2 trial of ublituximab, a novel, glycoengineered anti-CD20 monoclonal antibody, which had worldwide sales in 2016 of more than $7 billion.

Two single-agent, dose-escalation, Phase I studies were undertaken with TG-1101 to establish an optimal dose in patients with Non-Hodgkin’s Lymphoma (“NHL”B-cell non-Hodgkin lymphoma or chronic lymphocytic leukemia previously exposed to rituximab”.  

Single Agent Ublituximab (TG-1101) in Relapsing Forms of Multiple Sclerosis

In May 2016, we commenced our first study of ublituximab in patients with RMS, a chronic demyelinating disease of the CNS. The study, entitled "A Placebo-Controlled Multi-Center Phase 2 Dose Finding Study of Ublituximab, a Third-Generation Anti-CD20 Monoclonal Antibody, in Patients with Relapsing Forms of Multiple Sclerosis," was led by Edward Fox, MD, PhD, Director of the Multiple Sclerosis Clinic of Central Texas and Clinical Associate Professor at the University of Texas Dell Medical School in Austin, TX. The

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Table of Contents

primary objective of the study was to determine the optimal dosing regimen for ublituximab with a focus on accelerating infusion times. In addition to monitoring for safety and tolerability at each dosing cohort, B-cell depletion and established MS efficacy endpoints were also evaluated.

In October 2018, final data from this Phase 2 study were presented at the 34th Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) meeting in Berlin, Germany. The presentation included final data on all 48 patients enrolled in the study through 48 weeks of treatment. Ublituximab was well tolerated across all patients including those receiving rapid infusions, as low as a one hour for the 450mg dose currently being studied in the Phase 3 ULTIMATE program and no study drug related discontinuations occurred. Median B cell depletion was >99% at the primary analysis point of Week 4 (n=48) and maintained at Week 24 and Week 48. Ublituximab also completely eliminated all (100%) T1 Gd-enhancing lesions at Week 24 and Chronic Lymphocytic Leukemia (“CLL”maintained complete elimination at Week 48 (n=46) and an ARR of 0.07 was observed with 93% of subjects relapse free at Week 48.

In October of 2019, at the 35th Congress of the ECTRIMS meeting in Stockholm, Sweden, we re-presented the final 48-week data from the Phase 2 trial, and also presented long-term follow-up data for 45 patients from the Phase 2 trial that enrolled into the Open Label Extension (OLE) trial. With a median duration of follow-up of 124.7 weeks, ublituximab continued to be well tolerated, no subjects discontinued due to an adverse event (AE) related to ublituximab, and AEs deemed at least possibly related to ublituximab were infrequent with all patients dosed at 450mg administered in a one-hour infusion. Additionally, infusion related reactions (IRRs) were rare during the OLE, occurring in only 5 patients (11%). A two part all Grade 1 or 2.

Single Agent Umbralisib (TGR-1202) in Patients with Relapsed/Refractory Hematologic Malignancies

In February 2018, data from this first-in-human Phase I1 clinical trial of umbralisib was first completedpublished in France in which TG-1101The Lancet Oncology. The manuscript was evaluatedtitled, “Umbralisib, a novel PI3K and casein kinase-1 epsilon inhibitor, in relapsed or refractory CLL. Subsequently, a single-agentchronic lymphocytic leukemia and lymphoma: an open-label, phase 1, dose-escalation, first-in-human study.”

In addition to the above Phase I study was undertaken in the US enrolling patients with both NHL and CLL. In both studies, single agent therapy with TG-1101 was deemed well tolerated by treating investigators and displayed promising clinical activity in relapsed and refractory patients.


In oncology settings, anti-CD20 therapy is generally used in combination with other anti-cancer agents where it demonstrates maximum activity as opposed to single agent usage. As a result, subsequent clinical development for TG-1101 has focused on combination therapy. Currently, our priority combination1 trials for TG-1101 are:ublituximab and umbralisib, the following Phase 1 and Phase 2 studies were conducted:

Phase 1/2 Study of Umbralisib, Ublituximab and Venetoclax in patients with relapsed or refractory CLL – In December 2020, we presented data from patients with relapsed/refractory CLL treated with the triple therapy combination of ublituximab, umbralisib and venetoclax during the 62nd ASH annual meeting and exposition. At the time of presentation, 43 patients were evaluable for safety and 29 were evaluable for efficacy. The triple therapy regimen was administered with 3 cycles of U2 as induction in cycles 1 through 3, U2 plus venetoclax in cycles 4,5 and 6, followed by umbralisib plus venetoclax in cycles 7 through 12 in patients with R/R CLL. Patients with centrally confirmed undetectable minimal residual disease (uMRD) in the bone marrow after cycle 12 were permitted to stop all therapy, while MRD detectable patients continued on single agent umbralisib. Among evaluable patients, ORR was 77% (30/39) after cycle 3 (U2 only), 100% (31/31) after cycle 7, and 100% (27/27) after cycle 12. Among the 27 patients who finished 12 cycles of therapy, 41% achieved a complete response (CR) by iwCLL criteria, 96% achieved undetectable MRD in the peripheral blood and 77% achieved undetectable MRD in the bone marrow. At a median follow up of 15.6 months (n=43), only 1 patient has progressed, occurring 10 months after stopping treatment in cycle 12. Grade 3/4 adverse events occurring in > 5% of patients were neutropenia (21%), leukopenia (12%), infusion related reactions (7%), anemia (5%), and diarrhea (5%). No TLS events were observed during venetoclax administration, with one TLS event occurring prior to venetoclax administration.  
Phase 1 Study of TG-1701, a Once-Daily BTK inhibitor, as a Single Agent and in Triple Combination with Umbralisib and Ublituximab in patients with relapsed or refractory NHL and CLL – In December 2020, we presented data from patients with relapsed/refractory NHL and CLL treated with TG-1701 monotherapy and the triple therapy combination of TG-1701, umbralisib and ublituximab during the 62nd ASH annual meeting and exposition. A total of 102 patients with R/R CLL or b-cell lymphoma have been treated with TG-1701, with patients receiving monotherapy in the dose-escalation cohort (n=25) or in the 200 mg dose-expansion cohort (n=61), or TG-1701 in combination with U2 in the dose escalation cohort (n=16). TG-1701 monotherapy was well tolerated and the maximum tolerated dose was not reached up through 400 mg QD. Grade 3/4 adverse events (AE) occurring in >10% of patients treated with TG-1701 monotherapy were limited and included ALT increase (12%), all of which were patients treated with 400 mg QD. At the target single-agent Phase 2 dose of 200mg (QD) (n=61), AEs of special interest included Grade 3 hypertension (1.6%), atrial fibrillation (1.6%), and no instances of major bleeding observed. Grade 3/4 AEs occurring in >10% of patients treated with U2+1701 were ALT increase (25%), AST increase (19%) and neutropenia (12%). At a median follow up of 7 months in the 200 mg QD monotherapy expansion cohorts, preliminary

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The GENUINE Trial – a randomized controlled
overall response rates (ORR) were: 95% (19/20) in CLL, 50% (6/12) in mantle cell lymphoma (MCL), and 95% (18/19) in Waldenstrom macroglobulinemia (WM). At a median follow up of 12 months, the 1701+U2 dose escalation (using doses of 100mg to 300 mg QD of TG-1701) resulted in 79% ORR, with 22% CR rate across patients with WM, CLL, MZL, diffuse large B-cell lymphoma (DLBCL) and FL (n=14).
Ublituximab in Combination with Umbralisib with/without ibrutinib or bendamustine for Relapsed/Refractory NHL & CLL— In November 2013, we initiated a multi-center, Phase I study to evaluate the safety and efficacy of the combination of U2, for patients with relapsed and/or refractory CLL and NHL. The MD Anderson Cancer Center was the lead center for this clinical trial. Additional cohorts were added to this study to explore the triple therapy combination of U2 plus ibrutinib and the triple therapy combination of U2 plus bendamustine. Both U2 and the triplet combinations demonstrated acceptable levels of tolerability with promising activity. Data highlights include the following:
oUblituximab plus Umbralisib (U2):
In September of 2019, results from the Phase I/IB combination trial of U2 were published in Blood, the Journal of the American Society of Hematology in a manuscript titled, “Ublituximab and Umbralisib in Relapsed/ Refractory B-cell Non-Hodgkin Lymphoma and Chronic Lymphocytic Leukemia”. The paper includes safety and efficacy information from 22 patients with CLL or SLL and 53 patients with NHL treated with the combination of U2. Safety data was available from all 75 patients and demonstrated that the U2 combination was well tolerated with the majority of adverse events (AEs) being grade 1 or 2 in severity and no maximum tolerated dose achieved in either CLL or NHL. Importantly, U2 exhibited low rates of immune-mediated toxicities, typically associated with other PI3K-delta inhibitors including colitis, pneumonia/pneumonitis, or hepatic toxicity, and discontinuations due to AEs were limited (13%).Efficacy data was available from 69 patients and showed the combination to be highly active with a 72.5% clinical benefit rate (defined as patients obtaining a Complete Response, Partial Response, or Stable Disease) across all subtypes of B-cell cancers enrolled in the study. Of note, a median PFS of 27.57 months was observed in patients with relapsed/refractory CLL (n=15) treated at therapeutic dose levels of umbralisib and a 65% ORR was observed in patients relapsed/refractory indolent NHL (n=20), including a 100% ORR amongst MZL patients (n=5).
oU2 plus Bendamustine: In December 2018, updated data for the U2 plus bendamustine cohort was presented at the 60th ASH Annual Meeting. Overall, the U2 plus bendamustine combination was well tolerated and highly active in patients with advanced indolent and aggressive NHL, including those not eligible for HD/SCT or CD19 CART therapy. Efficacy highlights from this poster included an 85% (11 of 13) ORR including a 54% CR rate in patients with relapsed or refractory FL.
oU2 plus Ibrutinib: In January 2019, we announced the publication of results from the U2 plus ibrutinib cohort in The Lancet Haematology in a manuscript titled, “Tolerability and activity of ublituximab, umbralisib, and ibrutinib in patients with chronic lymphocytic leukemia and non-Hodgkin lymphoma: a phase 1 dose escalation and expansion trial”. Safety data was available from 46 patients and the triple combination of ublituximab, umbralisib, and ibrutinib was well tolerated with a manageable adverse event profile and no maximum tolerated dose achieved for the combination. Efficacy data was available from 44 patients and showed the U2 plus ibrutinib combination to be highly active. The ORR amongst all evaluable patients was 84%, with 100% (22 of 22) of patients with CLL/SLL achieving a response, including 36% achieving a CR. Among patients with NHL, 68% (15 of 22) achieved a response, including a 71% ORR in FL (n=7), a 100% ORR in MZL (n=3), and a 100% ORR in MCL (n=6).

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Umbralisib as a single agent in CLL patients who are intolerant to prior BTK inhibitor or PI3K delta inhibitor therapy—In December 2020, we announced the publication of results from 51 patients with CLL who were intolerant to prior BTK or PI3K delta inhibitor therapy who were then treated with single agent umbralisib in Blood, the Journal of the American Society of Hematology. Umbralisib demonstrated a favorable safety profile with only 12% of patients discontinuing due to an umbralisib related adverse event, of which only one patient discontinued due to a recurrent AE also experienced with prior kinase inhibitor therapy. Most common (≥5%) grade ≥3 AEs on umbralisib (all causality) were neutropenia (18%), leukocytosis (14%), thrombocytopenia (12%), pneumonia (12%), and diarrhea (8%). As of the data presentation, over half of the patients enrolled had been on umbralisib for a duration longer than their prior kinase inhibitor. The estimated median progression free survival (PFS) was 23.5 months (95% confidence interval: 13.1 – Not Estimable). Enrollment is now closed with patients continuing to be followed. In December 2020, data from this trial was described further in the manuscript entitled, “Phase 2 Study of the Safety and Efficacy of Umbralisib in Patients with CLL Who Are Intolerant to BTK or PI3Kδ Inhibitor Therapy,” which was published online in the First Edition section of Blood, the Journal of the American Society of Haematology.
Phase 2 trial of Umbralisib plus Ibrutinib in patients with relapsed or refractory CLL and MCL In December 2018, we announced the publication of results from the multicenter Phase 1/1b trial of umbralisib in combination with ibrutinib, the oral BTK inhibitor, in Lancet Haematology. This investigator-initiated trial was conducted at Dana-Farber Cancer Institute and four additional centers across the USA in collaboration with the Leukemia and Lymphoma Society, Blood Cancer Research Partnership with funding by TG Therapeutics. The publication includes safety and efficacy information from a total of 42 relapsed or refractory patients, 21 with CLL and 21 with MCL. In this study, the combination of umbralisib and ibrutinib was well tolerated and consistent with the additive toxicity profile of the two drugs individually. No dose-limiting toxicities were observed, and the maximum-tolerated dose of umbralisib when combined with ibrutinib was not reached. The recommended phase 2 dose of umbralisib when given in combination with ibrutinib was 800 mg once daily. Importantly, serious immune-mediated toxicities were not observed with this combination, as had previously been reported with combinations of different agents targeting this pathway, with only one case of transient Grade 3 transaminitis and no Grade 3/4 colitis or pneumonitis. The combination of umbralisib and ibrutinib was also clinically active, with 90% of relapsed/refractory CLL patients achieving an overall response (n=19), of which 62% (n=13) achieved a partial response or partial response with lymphocytosis, and 29% (n=6) achieved a complete response. Of the 21 patients treated with MCL, 67% (n=14) achieved an overall response, of which 48% (n=10) achieved a partial response and 19% (n=4) achieved a complete response. In June 2020, updated long term data from this trial were presented at the 25th European Hematology Association (EHA) Annual Congress. As of the updated data cutoff, 42 patients were evaluable for safety and efficacy (21 CLL patients and 21 MCL patients). With long term follow up (median follow-up of 43.5 months (range 8.4-61), there were no cumulative or recurrent late onset toxicities observed. In relapsed/refractory CLL, the overall response rate was 95% including a 29% complete response (CR) rate, and the 4-year Progression-free Survival (PFS) and Overall Survival (OS) were 78% and 90%, respectively. In relapsed/refractory MCL, the ORR was 71% with a 24% CR rate, and median PFS and OS were 10.8 and 30.7 months, respectively.
Phase 2 trial of Ublituximab plus Ibrutinib in patients with relapsed or refractory CLL and Mantle Cell Lymphoma (MCL)— In December 2013, we initiated a multi-center Phase 2 clinical trial to evaluate the safety and efficacy of the combination of ublituximab and ibrutinib for patients with CLL and MCL. Jeff P. Sharman, MD, Medical Director, Hematology Research, US Oncology Network, was the Study Chair. This trial has completed enrollment. Final data from the MCL cohort of this study was presented at the 57th ASH meeting held in December 2015, with data from the CLL cohort published in the British Journal of Haematology in December 2016. The combination displayed marked clinical activity, reporting an 88% (35/41) response rate in patients with CLL, a 95% (19/21) response rate in those CLL patients with high-risk cytogenetics, and an 87% (13/15) response rate in patients with MCL.
Additional early combination studies utilizing umbralisib with approved agents— Umbralisib has been evaluated in combination with the anti-CD30 antibody drug conjugate, brentuximab vedotin, in patients with relapsed or refractory Hodgkin lymphoma and in combination with the JAK inhibitor, ruxolitinib, in patients with Myelofibrosis or Polycythemia Vera. Additional investigator sponsored trials are also underway which are combining umbralisib and or the U2 combination with other approved agents for the treatment of B-cell malignancies.

Current Phase 3 trial evaluating TG-1101 in combination with ibrutinib,or Registration Directed Clinical Trials for previously treated CLL patients with high risk cytogenetics;

The UNITY-CLL Trial – a randomized controlledUblituximab and Umbralisib:

We have initiated and enrolled several Phase 3 trial under Special Protocol Assessment (SPA) evaluating TG-1101 in combination with TGR-1202, the Company’s development stage PI3K delta inhibitor, for patients with front line and previously treated CLL;

The UNITY-NHL Trial – registration-directed Phase 2b clinical study evaluating TGR-1202 alonetrials (i.e., clinical trials that may support a marketing application for approval). The following are the current Phase 3 trials and in combination with TG-1101 with or without bendamustine,registration-directed Phase 2b clinical trials:

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UNITY-NHL Phase 2b Trial: UNITY-NHL is a broad, multicenter, open-label, Phase 2b registration-directed clinical trial designed to evaluate the efficacy and safety of umbralisib monotherapy and U2 combinations in patients with previously treated Non-Hodgkin’s Lymphoma (NHL);NHL. The marginal zone lymphoma (MZL) and the follicular lymphoma (FL)/small lymphocytic lymphoma (SLL) single agent umbralisib cohorts of this trial are fully enrolled. These indolent lymphoma cohorts of the trial are being led by Nathan H. Fowler, MD, Associate Professor, Department of Lymphoma/Myeloma at the University of Texas MD Anderson Cancer Center. The primary objective of these cohorts is to assess the efficacy of single agent umbralisib as measured by Overall Response Rate (ORR).

UNITY-NHL MZL Single Agent Umbralisib Cohort: The MZL cohort enrolled adult patients who had at least one prior line of therapy that included an anti-CD20 monoclonal antibody. This cohort was designed to evaluate the safety and efficacy of single agent umbralisib and the primary endpoint is ORR as determined by Independent Review Committee (IRC) assessment. Secondary endpoints include safety, duration of response, and progression-free survival (PFS). 
TG-1101 + TGR-1202 + Pembrolizumab for patients with CLL.

In non-oncology settings, anti-CD20 therapy has generally been used as monotherapy. In addition to the above oncology studies, TG-1101 is being evaluated in a Phase 2 study for the treatment of Multiple Sclerosis (MS) and in an investigator initiated Phase 1 study for the treatment of acute neuromyelitis optica (NMO) relapses, with additional autoimmune related indications planned to be studied. On August 1, 2017, we announced we had reached an agreement withJanuary 2019, the U.S. Food and Drug Administration (FDA) regarding a Special Protocol Assessment (SPA) ongranted Breakthrough Therapy Designation (BTD) to umbralisib for the designtreatment of two global Phase 3 clinical trials for TG-1101, referred to as the ULTIMATE I and ULTIMATE II Phase 3 clinical trials, both of which are currently open to enrollment.

Manufacturing of TG-1101 is currently performed by a contract manufacturer based in the US and our partner, LFB Biotechnologies.

Pre-Clinical Data Overview
The mechanism of action of anti-CD20 antibodies, including rituximab and TG-1101 has been elucidated and detailed in numerous academic and clinical studies. Upon conjugation of the antibody to the CD20 surface antigen, rituximab has been found to deplete B-lymphocytes through three primary mechanisms: ADCC, CDC, and DCD or PCD.
Antibody dependent cellular cytotoxicity, or ADCC, is a mechanism that is dependent on interactions between the Fc region of the antibody and the FccR receptors on immune system effector cells, most notably the FccRIIIA (CD16) receptor found on NK cells. These interactions trigger cells to release cytotoxic molecules and proteases resulting in B-cell death. TG-1101 is a third generation, type I chimeric IgG1 monoclonal antibodyadult patients with a glycoengineered Fc region designed specifically to induce higher ADCC activity in comparison to rituximab, which has been demonstrated in pre-clinical models.
Clinical Data Overview and Recent Developments
Single Agent TG-1101 in Relapsed/Refractory NHL & CLL
Our first US based trial entitled "An Open Label Phase I/II Trial of the Efficacy and Safety of TG-1101 in Patients with B-cell Non-Hodgkin’s LymphomaMZL who have Relapsed or are Refractory After CD20 Directed Antibody Therapy,"received at least one prior anti-CD20 regimen. The BTD was launched in the third quarter of 2012. In July 2014, this trial completed enrollment at 35 patients, of which 12 patients were included in the dose escalation component and 23 patients in various expansion cohorts. All enrolled patients were relapsed or refractory to Rituxan®or a Rituxan®containing regimen, and in most cases multiple other lines of therapy. Dr. Owen O'Connor, Professor of Medicine and Director, Center for Lymphoid Malignancies at New York Presbyterian Columbia Medical Center was the Principal Investigator for the multi-center study.
Data from this study was published in full in theBritish Journal of Haematologyin February 2017:
TG-1101 in Combination with TGR-1202 with/without ibrutinib or bendamustine for Relapsed/Refractory NHL & CLL
In November 2013, we initiated a multi-center, Phase I study to evaluate the safety and efficacy of the combination of TG-1101 and TGR-1202, the Company's novel, once per day, PI3K delta inhibitor, for patients with relapsed and/or refractory CLL and NHL. Additional cohorts were added to this study to explore the triple therapy combination of TG-1101, TGR-1202, and ibrutinib and the triple therapy of TG-1101, TGR-1202 and bendamustine.
The MD Anderson Cancer Center is the lead center for the trial with Nathan Fowler, MD, Assistant Professor and Co-Director of Clinical Research in the Department of Lymphoma, as the Study Chair for the NHL patient group and Susan O’Brien, MD, Professor and Medical Director for Cancer Clinical Trials and Research at UC Irvine as the Study Chair for the CLL patient group. The data from this study supports the current Phase 3 UNITY-CLL study of U2 in CLL and the registration-directed UNITY-NHL Phase 2b clinical study of U2 + bendamustine in DLBCL.

              Updated data from this study was most recently presented at the 22ndEuropean Hematology Association (EHA) Annual Congress in Madrid, Spain in June 2017.
Both triplet combinations demonstrated acceptable levels of tolerability with promising activity. Enrollment in both cohorts is now closed and patients continued to be followed for safety and efficacy.
TG-1101 in Combination with Ibrutinib for Relapsed/Refractory MCL & CLL
In December 2013, we initiated a multi-center Phase 2 clinical trial to evaluate the safety and efficacy of the combination of TG-1101 and ibrutinib for patients with CLL and MCL. Jeff Sharman, MD, Medical Director for Hematology Research, US Oncology Network, was the Study Chair. This trial has completed enrollment.
Finalbased on interim data from the MCLMZL cohort of this study was presentedthe UNITY-NHL trial. In April 2019, the FDA granted orphan drug designation to umbralisib for the treatment of patients with any of the three types of marginal zone lymphoma (MZL): nodal, extranodal, and splenic MZL.

In December 2020, at the 57th Annual American Society of Hematology (ASH)Annual meeting held in December 2015, with dataresults from the CLL cohort published in full inMZL and FL/SLL umbralisib monotherapy cohorts of theBritish Journal of Haematologyin December 2016.

Overall, in both CLL and MCL, aside from day 1 Infusion related reactions (IRR), the addition of TG-1101 did not appear to alter the safety profile seen historically with single agent ibrutinib. Of the 60 patients treated, 41 CLL and 15 MCL patients UNITY-NHL were evaluable for response. The combination displayed marked clinical activity, reporting an 88% (35/41) response rate in patients with CLL, a 95% (19/21) response rate in those CLL patients with high-risk cytogenetics, and an 87% (13/15) response rate in patients with MCL. The data from the CLL cohort of this study supportedpresented.

UNITY-NHL FL/SLL Single Agent Umbralisib Cohort: The FL/SLL cohort enrolled adult patients who had two or more prior lines of therapy that included an anti-CD20 monoclonal antibody and an alkylating agent. In October 2019, we announced that the FL patients within this cohort met the primary endpoint of ORR as determined by Independent Review Committee (IRC) for all treated follicular lymphoma patients (n=118). In March 2020, the US FDA granted orphan drug designation to umbralisib, for the treatment of patients with FL. As noted above, in December 2020, at the ASH meeting results from the MZL and FL/SLL umbralisib monotherapy cohorts of the UNITY-NHL were presented.
UKONIQ Approval: On February 5, 2021, we announced the US FDA granted accelerated approval of umbralisib, now referred to as UKONIQ, for the treatment of adult patients with relapsed or refractory MZL who have received at least one prior anti-CD20 based regimen and adult patients with relapsed or refractory FL who have received at least three prior lines of systemic therapy. Accelerated approval was granted for these indications based on overall response rate (ORR) data from the Phase 2 UNITY-NHL Trial (NCT02793583). Continued approval for these indications may be contingent upon verification and description of clinical benefit in a confirmatory trial. 
UNITY-NHL Additional Cohorts: There are additional exploratory cohorts of the UNITY-NHL trial focused on Diffuse Large B-Cell Lymphoma (DLBCL) and Mantle Cell Lymphoma (MCL). In total, there are currently four cohorts in the UNITY-NHL trial including, MZL, FL/SLL, DLBCL, and MCL. Each cohort is enrolled and evaluated separately from the others.

UNITY-CLL Phase 3 GENUINE study of the combination in CLL patients with high-risk cytogenetics.

TG-1101 + IbrutinibTrial Evaluating Umbralisib plus Ublituximab (U2): UNITY-CLL is a global Phase 3 Study Program – The GENUINE Trial
The GENUINE trial is a randomized controlled clinical trial that includes two key objectives: first, to demonstrate contribution of each agent in patients with previously treated CLL with specific high-risk cytogenetic abnormalities, with patients randomizedthe ublituximab plus umbralisib regimen (the combination sometimes referred to receive either TG-1101 plus ibrutinib or ibrutinib alone. In October 2016, we announced revisionsas "U2"), and second, to demonstrate superiority in PFS over the designstandard of care to support the submission for full approval of the GENUINEcombination. The study to accelerate its completion. Initially therandomized patients into four treatment arms: ublituximab plus umbralisib, ublituximab alone, umbralisib alone, and an active control arm of obinutuzumab plus chlorambucil. The primary endpoint for this study was being conducted pursuant to a Special Protocol Assessment (SPA) with the U.S. Food and Drug Administration (FDA), and was designed to enroll approximately 330 patients, with a two-part analysis of both overall response rate (ORR) and progression-freeis progression free survival (PFS). which we intend to use to support a submission for approval of the U2 combination in CLL. The UNITY-CLL trial was amendedis being led by John Gribben, MD, professor of Medical Oncology, Barts Cancer Institute, United Kingdom. The study completed enrollment in October 2016 to enroll2017 with over 600 patients across the four treatment arms, with approximately 120 patients, with the PFS analysis component removed. Following the revisions, the sole primary endpoint of the study is ORR, and the SPA is no longer in effect.
In June 2017, the positive results from our Phase 3 GENUINE trial were presented by Dr. Jeff Sharman, Medical Director, Hematology Research, US Oncology in an oral session during the 53rd American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago, IL.
This presentation included data from the GENUINE Phase 3 trial, a multicenter, randomized trial, which assessed the efficacy and safety of TG-1101 plus ibrutinib versus ibrutinib alone in patients with high risk CLL. For the trial, high-risk was defined as having any one or more of the following centrally confirmed features: 17p deletion, 11q deletion or p53 mutation. The GENUINE study was designed to demonstrate the value of adding TG-1101 to ibrutinib monotherapy in high-risk CLL, and was powered to show a statistically significant improvement in ORR of 30%, with a minimal absolute detectable difference between the two arms of approximately 20%.
The trial met its primary endpoint, demonstrating a statistically significant improvement in Overall Response Rate (ORR), as assessed by blinded independent central radiology and hematology review by iwCLL (Hallek 2008) criteria, compared to ibrutinib alone in both the Intent to Treat (ITT) population (p=0.001) and Treated population (p < 0.001). Per iwCLL guidelines, all responders required confirmation of response for a minimum duration of 2 months. The ITT population included all 126 randomized patients (64 in the TG-1101 plus ibrutinib arm and 62 in the ibrutinib alone arm) while the Treated population includes all ITT patients that received at least one dose of either study drug (59 in the TG-1101 plus ibrutinib arm and 58 in the ibrutinib alone arm).

One hundred and seventeen (117) patients were evaluable for safety (59420 patients in the TG-1101 plus ibrutinibU2 arm and 58 patients in the ibrutinib alone arm). The combination was well tolerated and, apart from infusion related reactions, the addition of TG-1101 did not appear to alter the safety profile of ibrutinib monotherapy. Neutropenia, occurring in 9% of patients, was the most commonly reported Grade 3/4 Adverse Event (AE) in the combinationactive control arm followed by infusion related reactions and anemia, each reported in 5% of patients. Notably, the majority of infusion related reactions (IRR) were Grade 1 or 2 in severity, with only 5% Grade 3/4 IRR observed. Median follow-up for this study was approximately 11.4 months.
Response Rates
 TG-1101 plus IbrutinibIbrutinibP-value
Treated Population (n)n=59n=58 
Overall Response Rate (ORR)78%45%P<0.001
Complete Response (CR)7%0%NS
MRD-Negative
19%
(n=53) *
2%
(n=53) *
P<0.01
*Patients evaluable for MRD included those enrolled >4 months prior to data cutoff date of February 15, 2017. MRD analyzed by central lab, 7-color flow cytometry
In October 2017, we announced the outcome of a meeting with the FDA regarding the use of the results from the GENUINE Phase 3 trial to support a Biologics License Application (BLA) filing for approval of TG-1101 in combination with ibrutinib. During the meeting, the FDA confirmed that accelerated approval based on ORR would be a review issue. As part of the discussion, the FDA encouraged us to consider future available therapy in its risk/benefit analysis as part of any potential future BLA filing that may impact accelerated approval.
We continue to follow patients in the GENUINE study for safety and efficacy including Overall Response, MRD and Progression Free Survival (PFS). We are currently working on preparing a Biologics License Application for a potential accelerated approval filing for TG-1101 in combination with ibrutinib in previously treated CLL patients with high-risk cytogenetics, which filing could occur in 2018.

TG-1101 in Combination with TGR-1202 Phase 3 Study Program – The UNITY-CLL Trial
combined.

In September 2015, we reached an agreement with the FDA regarding ana SPA on the design, endpoints, and statistical analysis approach of athe UNITY-CLL Phase 3 clinical trial for the proprietary combination of TG-1101 plus TGR-1202, for the treatment of CLL.trial. The SPA provides agreement that the Phase 3 trial design adequately addresses objectives that, if met, would support the regulatory submission for drug approval of both TG-1101ublituximab and TGR-1202umbralisib in combination.

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The Phase 3 trial, called the UNITY-CLL trial, is

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In May 2017, a randomized controlled clinical trial that includes two key objectives: first, to demonstrate contribution of each agent in the TG-1101 + TGR-1202 regimen (the combination sometimes referred to as "U2"), and second, to demonstrate superiority in Progression Free Survival (PFS) over the standard of care to support the submission for full approval of the combination. The study will randomize patients into four treatment arms: TG-1101 + TGR-1202, TG-1101 alone, TGR-1202 alone, and an active control arm of obinutuzumab (GAZYVA®) + chlorambucil. An earlypre-specified interim analysis willwas conducted to assess contribution of each single agent in the TG-1101 + TGR-1202ublituximab plus umbralisib combination regimen, which if successful, will allowallowed for the early termination of both single agent arms. A second interim analysis will be conducted following full enrollment intowas planned to evaluate ORR to support accelerated approval when all patients in the study, which, if positive, we plan to utilize for accelerated approval.


U2 arm and the active control arm had at least 6 months of follow-up. In May 2017,September 2018, we announced that the independent Data Safety Monitoring Board (DSMB) reviewed ongoing data from the trial and advised us that the second interim analysis of ORR could not be conducted at that time as the data were not sufficiently mature to conduct the analysis. Given the uncertainty surrounding the timing and outcome of the ORR analysis, as well as the significant regulatory hurdles associated with accelerated approval in CLL, we decided to continue to conduct the trial under the SPA and seek full approval for U2 in patients with CLL based on the PFS endpoint, if positive.

In May 2020, we announced the UNITY-CLL trial met the primary endpoint of improved PFS (p<.0001) and the trial would be stopped early for superior efficacy observed at the interim analysis.  

In October 2020, we announced the US FDA granted Fast Track designation to the combination of ublituximab and umbralisib for the treatment of adult patients with CLL. The US FDA previously granted Orphan Drug Designation (ODD) covering ublituximab in combination with umbralisib for the treatment of CLL.

On December 1, 2020, we initiated a rolling submission of a BLA to the US FDA requesting approval of ublituximab, in combination with umbralisib, as a treatment for patients with CLL, with completion of the rolling submission for the BLA expected in the first half of 2021.

On December 7, 2020, we presented safety and efficacy results from the UNITY- CLL trial at the ASH annual meeting, demonstrating that U2 significantly improved PFS over obinutuzumab plus chlorambucil (HR=0.54, p<0.0001) as well as ORR (p<0.001) in patients with CLL; with consistent PFS improvement across treatment naïve CLL (HR=0.48) and relapsed/refractory CLL (HR=0.60). Grade 3/4 Adverse Events (AEs) of clinical interest (U2 vs O+Chl) included elevated ALT (8.3% vs 1.0%), elevated AST (5.3% vs 2.0%), non-infectious colitis (1.9% vs 0%), infectious colitis (0.5% vs 0.5%), pneumonitis (0.5% vs 0%), rash (2.4% vs 0.5%), and opportunistic infections (5.8% vs. 1.5%).

GENUINE Phase 3 Trial Evaluating Ublituximab plus Ibrutinib: GENUINE is a randomized controlled clinical trial had successfully completedevaluating patients with previously treated CLL with specific high-risk cytogenetic abnormalities. Patients in this trial were randomized to receive either ublituximab plus ibrutinib or ibrutinib alone. In February 2021, final results from this trial were published in The Lancet Haematology, in a pre-specified interim analysismanuscript titled, “A Phase 3, Randomized Trial of Ublituximab Plus Ibrutinib for Patients With Relapsed/Refractory High-Risk Chronic Lymphocytic Leukemia”.

ULTIMATE I & II Trials Evaluating Single Agent Ublituximab in RMS: ULTIMATE I and ULTIMATE II are two independent Phase 3 trials. Each trial is a global, randomized, multi-center, double-blinded, double-dummy, active-controlled study comparing ublituximab to assess the contributionteriflunomide in subjects with RMS. The primary endpoint for each study is ARR following 96 weeks of TG-1101 and TGR-1202treatment which we intend to use to support a submission for approval of ublituximab in the combination regimen of TG-1101 plus TGR-1202. In conducting the analysis, the DSMB reviewed efficacy data fromRMS. Each trial was designed to enroll approximately 50 patients per arm in the UNITY-CLL study who were eligible for at least one response evaluation. Based on the overall response rate data available, and in accordance with the statistical analysis plan in the study's SPA, the DSMB determined that contribution has been established and recommended we cease enrollment into the single agent arms. Accordingly, in May the study began enrolling440 subjects, randomized in a 1:1 ratio to only the two combination arms: the investigational arm of TG-1101 plus TGR-1202 and the control arm of obinutuzumab plus chlorambucil. Additionally, the DSMB reviewed safety data from all patients on study (n > 270) as of the data cut-off date, including patients with both treatment naive and relapsed/refractory Chronic Lymphocytic Leukemia (CLL), and again identified no safety concerns in any treatment group (treatment naive or previously treated) and recommended the continuation of the study without modification.

In September 2017, we announced that target enrollment in the UNITY-CLL trial was met and that we were extending enrollment until October 12, 2017 for any additional identified study patients to be allowed in the trial. We expect top-line ORR data from this study to be reported in 2018.
TG-1101 in Combination with TGR-1202 with or without bendamustine Phase 2b Registration-Directed Program – The UNITY-NHL Trial
In June 2016, we commenced a registration-directed UNITY-DLBCL Phase 2b clinical study evaluating TG-1101 in combination with TGR-1202, as well as TGR-1202 alone, in patients with previously treated DLBCL. In mid-2017, this study was expanded to allow enrollment of patients with follicular lymphoma (FL), small lymphocytic lymphoma (SLL), and marginal zone lymphoma (MZL), as well as to add a cohort evaluating the triplet regimen of TG-1101 + TGR-1202 + bendamustine which has previously been explored in Phase 1. The cohorts of DLBCL, FL/SLL, and MZL are each being enrolled to and evaluated independently.
The updated study, called UNITY-NHL, is entitled "A Phase 2b Randomized Study to Assess the Efficacy and Safety of the Combination of Ublituximab + TGR-1202 with or without bendamustine and TGR-1202 alone in Patients with Previously Treated Non-Hodgkin’s Lymphoma.” The DLBCL componentratio.  This program is being led by OwenLawrence Steinman, MD, George A. O'Connor, MD, PhD,Zimmermann Professor and Professor of MedicinePediatrics, Neurology and Experimental Therapeutics, and Director of the Center for Lymphoid MalignanciesNeurological Sciences at Columbia University Medical Center, while the indolent NHL component of the study is being led by Nathan H. Fowler, MD, Associate Professor, Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center. The primary objective of the study is to assess the efficacy of TGR-1202 alone, in combination with TG-1101, or in combination with TG-1101 and bendamustine in patients with previously treated NHL as measured by Overall Response Rate (ORR). The study will also provide important information as to the contribution of each agent, TGR-1202 and TG-1101, to the combination regimen of both agents, as well as the contribution of bendamustine to the combination regimen of both agents.
In August 2017, we announced that the study’s Data Safety Monitoring Board (DSMB) had met and, based on pre-set hurdles designed to evaluate ORR, the DSMB recommended continued enrollment in the TGR-1202 + TG-1101 ("U2") arm and no further enrollment into the single agent TGR-1202 arm for the DLBCL cohort. As set forth in the protocol, the single agent TGR-1202 arm was replaced with the triple combination of TG-1101 + TGR-1202 + bendamustine.
Single Agent TG-1101 in Relapsing Forms of Multiple Sclerosis
In May 2016, we commenced our first study of TG-1101 in patients with relapsing remitting multiple sclerosis (RRMS), a chronic demyelinating disease of the central nervous system (CNS).
The study, entitled "A Placebo-Controlled Multi-Center Phase 2 Dose Finding Study of Ublituximab, a Third-Generation Anti-CD20 Monoclonal Antibody, in Patients with Relapsing Forms of Multiple Sclerosis," is being led by Edward Fox, MD, PhD, Director of the Multiple Sclerosis Clinic of Central Texas and Clinical Assistant Professor at the University of Texas Medical Branch in Round Rock, TX. The primary objective of the study is to determine the optimal dosing regimen for TG-1101 with a focus on accelerating infusion times. In addition to monitoring for safety and tolerability at each dosing cohort, B-cell depletion and established MS efficacy endpoints will also be evaluated.

Data from this study was most recently presented at the Third Annual ACTRIMS Forum 2018 meeting in San Diego, CA, with additional data presentations expected at upcoming medical conferences.
TG-1101 in relapsing forms of Multiple Sclerosis Phase 3 Study Program – The ULITIMATE I and ULTIMATE II Trial
Stanford University.

In August 2017, we reached an agreement with the FDA regarding an SPA on the design of two Phase 3 clinicalthe ULTIMATE I and ULTIMATE II trials, for TG-1101, for the treatment of relapsing forms of Multiple Sclerosis (RMS).RMS.  The SPA provides agreement that the two Phase 3 trial designs adequately address objectives that, if met, would support the regulatory submission for approval of TG-1101.

The RMS Phase 3 program consists of two trials, calledublituximab in RMS.

In August 2018, we announced that target enrollment into the ULTIMATE I and II trials had been achieved, and that enrollment would continue into September 2018 to allow identified patients to participate in the study. At completion of full enrollment in October of 2018, approximately 1,100 subjects were enrolled in both studies combined.

In October 2019, at the 35th Congress of ECTRIMS, we presented the ULTIMATE I & II Phase 3 program trial design and demographic data. The presentation concluded that patient baseline characteristics were consistent with a typical RMS population.

In December 2020, we announced positive topline results from the ULTIMATE I & II trials. Each trialBoth studies met their primary endpoint of significantly reducing ARR (p<0.005 in each study) with ublituximab demonstrating an ARR of <0.10 in each of the studies. Relative

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reductions of approximately 60% and 50% in ARR over teriflunomide were observed in ULTIMATE I & II, respectively. Further analyses of the ULTIMATE I & II studies including safety and secondary endpoints are being conducted and detailed data is targeted to be presented in first half of 2021. Additionally, data from these studies are intended to support a BLA submission for ublituximab in RMS targeted in mid-year 2021.

ULTRA-V Phase 2 Trial Evaluating U2 plus Venetoclax in CLL: ULTRA-V is a global, randomized, multi-center, double-blinded, double-dummy, active-controlled study comparing TG-1101 (ublituximab)Phase 2 open-label, multicenter, registration-directed clinical trial designed to teriflunomideinvestigate the efficacy and safety of U2 combined with venetoclax in subjects with RMS. The primary endpoint for each study is Annualized Relapse Rate (ARR) following 96 weeks of treatment. Each trial is ongoingtreatment naïve and will enroll approximately 440 subjects, randomized in a 1:1 ratio, with approximately 880 patients to be enrolled across both trials.

Updates for the combination of TG-1101 and TGR-1202
In January 2017, we announced that the FDA has granted orphan drug designation covering the combination of TG-1101 and TGR-1202 for the treatment of patients with CLL and DLBCL.
TGR-1202
Overview
The phosphoinositide-3-kinases (“PI3Ks”) are a family of enzymes involved in various cellular functions, including cell proliferation and survival, cell differentiation, intracellular trafficking, and immunity. There are four isoforms of PI3K (alpha, beta, delta, and gamma), of which the delta (d) isoform is strongly expressed in cells of hematopoietic origin, and often implicated in B-cell related lymphomas.
TGR-1202 is an orally available PI3K delta inhibitor with nanomolar potency to the delta isoform and high selectivity over the alpha, beta, and gamma isoforms. TGR-1202 has demonstrated activity in several pre-clinical models and primary cells from patients with various hematologic malignancies.
We hold exclusive rights to develop and commercialize TGR-1202 for all indications worldwide, except India which has been retained by Rhizen Pharmaceuticals, SA.
The Company’s Investigational New Drug (“IND”) application for TGR-1202 was accepted by the FDA in December 2012 and a first in-human Phase I clinical trial was initiated in January 2013.

Updates for TGR-1202
In August 2016, we announced that TGR-1202 had received orphan drug designation for the treatment of CLL.
In October 2016, a manuscript titled, "Silencing c-Myc Translation as a Therapeutic Strategy through Targeting PI3K Delta and CK1 Epsilon in Hematological Malignancies," was published online in the First Edition section of Blood, the Journal of the American Society of Hematology. The publication presents preclinical data describing the synergy of TGR-1202 with the proteasome inhibitor carfilzomib and the unique effects of the combination to silence c-Myc in various preclinical lymphoma and myeloma models. In addition, the manuscript for the first time reports on TGR-1202's unique complimentary mechanism of inhibiting the protein kinase casein kinase-1 (CK1) epsilon, which may contribute to the silencing of c-Myc and explain TGR-1202's clinical activity in aggressive lymphoma, including Diffuse Large B-cell Lymphoma (DLBCL).
In February 2018, data from the first-in-human Phase 1 clinical trial of TGR-1202 was published online in The Lancet Oncology. The manuscript was titled, “Umbralisib, a novel PI3K and casein kinase-1 epsilon inhibitor, in relapsed or refractory chronic lymphocytic leukaemiaCLL. The primary endpoints for this trial are ORR and lymphoma: an open-label, phase 1, dose-escalation, first-in-human study,” The paper includes safety and efficacy information from 90 patients with relapsed or refractory hematologic malignancies, including patients with CLL and various forms of lymphoma treated with single agent TGR-1202. In this study, the data showed that TGR-1202 was well tolerated with a favorable safety profile distinct from prior generation PI3K delta inhibitors.
Clinical DataCR rate.

Early Pipeline Overview and Recent Developments

Initial clinical developmentClinical Development

Cosibelimab (anti-PD-L1 monoclonal antibody) Overview

Cosibelimab (also referred to as TG-1501) is a fully human monoclonal antibody of TGR-1202 was focusedIgG1 subtype that binds to Programmed Death-Ligand 1 (PD-L1) and blocks its interactions with PD-1 and B7.1 receptors. Cancer cells elude anti-tumor immunity through multiple mechanisms, including upregulated expression of ligands for inhibitory immune checkpoint receptors. Signals from PD-L1 on establishing preliminary safety and efficacy in a wide variety of hematologic malignancies. Upon identification of safe and active doses of TGR-1202, additional clinical trial programs were opened, exploring TGR-1202 as a single agenttumor cells and in combinationthe tumor microenvironment help those tumors avoid immune attack and elimination by preventing activation of tumor specific effector T-cells. Anti-PD-L1 antibodies are designed to block that signal, permitting effector T-cells to attack the cancer. Clinical studies have shown that blockade of the PD-1/PD-L1 pathway by monoclonal antibodies can enhance the immune response and result in anti-tumor activity.

Preclinically, it has been shown that the effects of anti-PD-L1 intervention can be enhanced by utilizing other mechanisms targeting the tumor microenvironment. Combining immunotherapies like anti-PD-L1, which counters the tumor's immune-evading defense system with a varietyother anti-cancer agents such as ublituximab or umbralisib, may better engage the body's own immune system to help fight cancer.

A comprehensive array of agents. In additionin vitro biochemical and cellular assays was established to characterize the previously described studiesbinding and the functional activities of cosibelimab. The in combination with TG-1101, our current priority clinical trialsvitro data demonstrated that the affinity, PD-L1 binding capability, relative ability to inhibit PD-1/PDL-1 interactions, and functional activity of cosibelimab in cellular assays are ongoing for TGR-1202 include:

TGR-1202 as a single agent in CLL patients who are intolerantcomparable to prior BTK inhibitor or PI3K delta inhibitor therapy;
TGR-1202 in combination withthose of atezolizumab, durvalumab and avelumab - the BTK inhibitor, ibrutinib, in patients with previously treated CLL and MCL; and
TGR-1202 in combination withcurrently approved products sharing the JAK inhibitor, ruxolitinib (JAKAFI®), in patients with previously treated Myelofibrosis or Polycythemia Vera.
Single Agent TGR-1202 in Patients with Relapsed/Refractory Hematologic Malignancies
In January 2013, the Company initiated a Phase I, open label, multi-center, first-in-human clinical trialsame mechanism of TGR-1202 in patients with hematologic malignancies. The study entitled TGR-1202-101, "A Phase I Dose Escalation Study Evaluating the Safety and Efficacy of TGR-1202 in Patients with Relapsed or Refractory Hematologic Malignancies,"action.

Cosibelimab is being run in collaboration with the Sarah Cannon Research Institute in Nashville, TN with Howard “Skip” Burris, MD, Executive Director, Drug Development as the acting Study Chair. Enrollment is open to patients with relapsed or refractory NHL, CLL, and other select hematologic malignancies. As of February 2016, this study has closed to enrollment.

Data from this ongoing Phase I study waspublished in full inTheLancet Oncologyin February 2018.
TGR-1202 Long-term Follow-up Integrated Analysis in Patients with Relapsed/Refractory Hematologic Malignancies
In December 2017, at the 59th American Society of Hematology (ASH) Annual Meeting, the Company presented integrated data with long term follow-up from 347 patients exposed to TGR-1202 across 5 studies, which continued to demonstrate high response rates in CLL, and FL coupled with a favorable safety profile distinct from other PI3K delta inhibitors.

TGR-1202 TKI Intolerance Study
In December 2017, at the 59th American Society of Hematology (ASH) Annual Meeting, the Company presented data from 33 patients with CLL who were intolerant to prior BTK or PI3K delta inhibitor therapy who were then treated with single agent TGR-1202. TGR-1202 appeared to demonstrate a favorable safety profile in patients intolerant to prior ibrutinib (BTK) or idelalisib (PI3K) with only 2 patients (6%) discontinuing due to an adverse event, neither of which was a recurrent adverse event from their prior BTK or PI3K therapy. Enrollment continues in this Phase 2 study.
TGR-1202 Combination Trials
TGR-1202 iscurrently being evaluated in combination with the anti-CD30 antibody drug conjugate, brentuximab vedotin, inan ongoing study (Study CK-301-101: NCT03212404), enrolling patients with relapsed or refractory Hodgkin’s lymphoma; in combination with the BTK inhibitor, ibrutinib, in patients with CLL and MCL; and in combination with the JAK inhibitor, ruxolitinib, in patients with Myelofibrosis or Polycythemia Vera. Additional investigator sponsored trials are also underway which are combining TGR-1202 with other approved agents for the treatment of B-cell malignancies.
It is anticipated that results from these studies will be presented or updated at future medical conferences. 
TGR-1202 in Solid Tumors
In addition to the exploration of TGR-1202 in various hematologic malignancies, a study was opened in October 2015 to evaluate TGR-1202 as a single agent as well as in combination with various chemotherapies for the treatment of select solid tumors. The study, entitled TGR-1202-102, “A Phase I Study Evaluating the Safety and Efficacy of TGR-1202 Alone and in Combination with either nab-paclitaxel + Gemcitabine or with FOLFOX in Patients with Select Relapsed or Refractory Solid Tumors” istumors, being run in collaboration with the Sarah Cannon Research Institute in Nashville, TN with Johanna Bendell, MD, Director of GI Oncology Research as the acting study chair. The study is currently closed to enrollment with patients continuing to be followed for safety and efficacy.
Market Opportunity for TG-1101 & TGR-1202
Our lead products under development, TG-1101 and TGR-1202 are for the treatment of B-cell hematologic malignancies. Hematologic malignancies include cancers derived from the bone marrow and lymph tissue. The non-Hodgkin’s lymphomas (NHL) represent a heterogeneous subset of these malignancies. Underneath the single rubric of lymphoma exist some of the most aggressive growing cancers (Burkitt’s lymphoma, lymphoblastic lymphoma, diffuse large-B-cell lymphoma), as well as some of the most indolent (small lymphocytic lymphoma, follicular lymphoma, and marginal zone lymphoma).conducted by our licensor. In the United States, NHL represents 4-5% of all new cancer cases, and is the eighth leading cause of cancer death. According to the American Cancer Society, it is estimated in 2018 that there will be 74,680 new cases in the United States, and 19,910 deaths from NHL, despite improvements in treatment. Chronic lymphocytic leukemia (CLL) affects mainly older adults and accounts for approximately one quarter of all diagnosed cases of leukemia, of which there are estimated to be about 60,300 new cases and about 24,370 deaths (all kinds of leukemia) according to American Cancer Society estimates. Despite improvements in therapy, up to one third of patients with aggressive NHL continue to die from their disease, and indolent lymphomas remain incurable in the absence of allogeneic stem cell transplant. The treatment paradigm for hematologic malignancies is well standardized in front line settings, with the anti-CD20 monoclonal antibody, rituximab, administered generally in combination with chemotherapeutic agents. While front line therapies are generally efficacious, there are numerous downsides, including a high rate of toxicity associated with exposure to chemotherapeutic agents. While initially responsive, most patients with hematologic malignancies will eventually relapse and require second, third, and sometimes more lines of therapy. As a result, there is a pressing need for new, innovative, targeted therapies for the treatmentdose escalation portion of this heterogeneous grouptrial, doses ranging from 200mg to 800mg were tested with no dose-limiting toxicities observed and no maximum tolerated dose (MTD) was achieved; therefore, a fixed dose of diseases.

Anti-CD20 antibodies have been approved and studied in a variety800 mg was the selected starting dose of diseases falling into several therapeutic areas including oncology, autoimmune disorders, and neurologic disease. NHL and CLL are the most common B-cell proliferative diseases for which rituximab, the first anti-CD20 antibody approved by the FDA, is the current gold standard treatment. While the addition of rituximab to chemotherapeutic treatment of NHL has dramatically improved patient outcomes, many patients will relapse or become refractory to rituximab containing regimens.
Rituximab resistance is becoming an increasing concern for clinicians as relapsing patients are exposed to multiple lines of rituximab containing regimens to treat recurrence of disease. It is estimated that over half of patients initially responsive to their first exposure to rituximab do not respond upon retreatment (Davis et al, 2000).
We believe these factors contribute to an immediate and sustained need for an anti-CD20 monoclonal antibody that is differentiated and potentially therapeutically superior to the gold standard rituximab in order to extend and enhance CD20 therapy as it stands today.
In addition to anti-CD20 therapy, novel targeted agents are now being introduced which target specific signaling pathways and enzymes known to exhibit aberrant activity and overexpression in B-cell malignancies such as Bruton’s Tyrosine Kinase (BTK), and Phosphoinositide-3-Kinase delta (PI3K delta). The PI3K/AKT/mTOR pathway has been the target of numerous pharmaceutical agents, both approved and in development, however only recently has the delta isoform of PI3K been identified as a potential target for the treatment of hematologic malignancies and other B-cell lymphoproliferative disorders. Idelalisib (ZYDELIG®), a PI3K delta specific inhibitor from Gilead Pharmaceuticals, was approved by the FDA in 2014 for patients with CLL and indolent NHL, and copanlisib (ALIQOPA™) was approved by the FDA in 2017 for patients with advanced follicular lymphoma.. Other agents targeting kinases downstream of the B-cell receptor, such as the BTK inhibitor, ibrutinib and acalabrutinib, have displayed high rates of response in patients with relapsed and refractory B-cell malignancies and have been recently approved for indications in lymphoma. While these agents have demonstrated high levels of single agent activity in B-cell disorders, their clinical activity has been shown to be greatly enhanced when utilized in combination with anti-CD20 agents.
As novel targeted agents gain FDA approval for the treatment of relapsed and refractory disease, it is anticipated that the size of this market will expand greatly as branded drugs enter use in multiple lines of therapy. Given the nature of the disease statecosibelimab for patients with hematologic malignancies, characterized by indolent disease progressionmalignancies.

In December 2018, the FDA approved an IND for cosibelimab and chronic relapses, the Company anticipates a great and growing need for novel agents that can be used alone orPhase 1 study in subjects with select subtypes of lymphoma commenced in 2019, as did a study of cosibelimab in combination with approved agents, and those currently under development to enhanceublituximab and/or umbralisib. Based on our rapidly evolving understanding of the qualitypathobiology of life and extendlymphoma subtypes, we envision further combinations with other immunotherapies in the length of survival for patients suffering from hematologic malignancies.

IRAK4
Interleukin-1 Receptor Associated Kinase 4, referred to as IRAK4,future.

TG-1701 (BTK inhibitor) Overview

TG-1701 is a key signaling kinase that becomes inappropriately activated in tumors that carry certain oncogenic mutations of MYD88, which can be found in most patients with Waldenström's Macroglobulinemia, a rare B-cell cancer, as well as in a sub-set of patients with Non-Hodgkin's Lymphomanovel, orally available and Chronic Lymphocytic Leukemia. Additionally, IRAK4 is a key component of signaling pathways which regulate immune and inflammatory processes suggesting that inhibition of IRAK4 may also be useful in the treatment of autoimmune related disorders. We hold global rights to develop and commercialize the IRAK4 program, which was licensed from Ligand Pharmaceuticals. Our IRAK4 program is currently in pre-clinical development. In April 2015, we presented pre-clinical data on the IRAK4 compounds at the 2015 American Association for Cancer Research (AACR) Annual Meeting held in Philadelphia, PA.

PD-L1 and GITR
In March 2015, we entered into a global collaboration agreement for the development and commercialization of anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies. Our anti-PD-L1 recently entered the clinic and our anti-GITR program is currently in pre-clinical development, with pre-clinical data most recently presented at the American Association for Cancer Research Annual Meeting in March 2017.

In October 2017, we announced that the first patient has been dosed in a Phase 1 clinical trial evaluating the safety and tolerability of our anti-PD-L1 monoclonal antibody, enrolling patients across sites in Australia and New Zealand. 
BET
In May 2016, as part of a broader agreement with Jubilant Biosys (“Jubilant”), an India-based biotechnology company, we entered into a sub-license agreement (“JBET Agreement”) with Checkpoint Therapeutics, Inc. (“Checkpoint”), a subsidiary of Fortress Biotech, Inc. (“FBIO”), for the development and commercialization of Jubilant’s novel BET inhibitor program in the field of hematological malignancies. The BET inhibitor program is the subject of a family of patents covering compounds that inhibit BRD4, a member of the BET (Bromodomain and Extra Terminal) domain for cancer treatment. Our BET inhibitor program is currently in pre-clinical development. Our Executive Chairman and CEO, is also Executive Vice Chairman of FBIO.
BTK
In January 2018, we entered into a global exclusive license agreement with Jiangsu Hengrui Medicine Co., or Jiangsu (“BTK Agreement”),  pursuant to which we obtained worldwide rights, excluding Asia but including Japan, for the development of Hengrui's Bruton's Tyrosine Kinase (BTK) inhibitor program, including lead candidate TG-1701 (known in China as SHR-1459), as monotherapy and in combination with TG-1101 and TGR-1202. In addition to TG-1701, the global license agreement covers TG-1702 (SHR-1266), another BTK inhibitor in pre-clinical development. Bruton'scovalently-bound Bruton’s tyrosine kinase (BTK) inhibitor that exhibits superior selectivity to BTK compared to ibrutinib in in vitro kinase screening.

B-cell receptor (BCR) signaling is crucial for normal B-cell development and supports the survival and growth of malignant B-cells in patients with B-cell leukemias or lymphomas. Targeting BTK, an essential componentelement of the B-cell receptorBCR signaling pathways that regulatepathway which regulates the survival, activation, proliferation, and differentiation of B lymphocytes. Targetinglymphocytes, has shown remarkable efficacy with an acceptable safety profile in B-cell malignancies.           

In June 2018, pre-clinical data for TG-1701 demonstrating favorable pharmacologic properties was presented at the 23rd Congress of the European Hematology Association (EHA) in Stockholm, Sweden. In vitro pharmacology studies have revealed that TG-1701 inhibited BTK with small molecule inhibitorsgreater than 10-fold selectivity as measured by IC50 on the kinase activities of EGFR, ITK, TXK, JAK3, HER2 and HER4. In vivo pharmacology studies showed that TG-1701 significantly inhibited the growth of xenograft lymphoid tumors including OCI-LY-10 and DOHH-2 in nude mice.

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We are currently evaluating TG-1701 in a Phase 1, multi-center, dose-escalation clinical trial in patients with B-cell malignancies. This trial is designed to evaluate the safety and tolerability of TG-1701 alone and in combination with U2 in adults with B-cell malignancies and determine the recommended Phase 2 dose. Key secondary objectives include evaluation of pharmacokinetics (PK), pharmacodynamics, and preliminary anticancer activity.  Preliminary data from this Phase 1 study was presented at ASH 2020 (described above).

TG-1801 (anti-CD47/anti-CD19 bispecific monoclonal antibody) Overview

TG-1801 is a first-in-class, bispecific CD47 and CD19 antibody. It is the first therapy to target both CD19, a B-cell specific market widely expressed across B-cell malignancies, and CD47, the "don’t eat me" signal used by both healthy and tumor cells to evade macrophage mediated phagocytosis. CD47 is expressed ubiquitously on normal cells, including red blood cells and platelets. CD19 is a specific B-cell marker, expressed early during pre-B cell ontogeny and until terminal differentiation into early plasma cells. The majority of B-cell lineage malignancies (more than 90%) express CD19, including NHL, CLL and acute lymphoblastic leukemia (ALL). Tumor B-cells that have lost the expression of CD20 after anti-CD20 mAb therapy, have been found to maintain the expression of CD19, making CD19 an attractive target in the treatment of B cell malignancies. By co-targeting both CD47 and CD19, TG-1801 has beenthe potential to overcome the limitations of existing CD47 targeted therapies by avoiding the side effects caused by indiscriminate blockade of CD47 on healthy cells. In addition to potentially enhancing tolerability, the co-targeting of CD19 by TG-1801 may provide a secondary mechanism of direct anti-tumor activity through the engagement of effector cells and induction of ADCC.

TG-1801 binds to human CD19 with significantly higher affinity than towards CD47. This difference between its affinity to CD19 and CD47 allows TG-1801 to bind and selectively block CD47 on CD19+ B-cells but not on CD19- red blood cells or platelets in human peripheral blood.

In in vitro assays, TG-1801 induces antibody-dependent cellular phagocytosis (ADCP) and ADCC of malignant tumor B-cell lines and primary tumor B-cells from patients with B-cell acute lymphoblastic leukemia (B-ALL), B-cell chronic lymphocytic leukemia (B-CLL) and numerous subtypes of NHL.

In in vivo mouse tumor models, treatment with TG-1801 inhibited tumor growth in Raji cell subcutaneous xenograft model, NALM-6 cell disseminated tumor model, and patient-derived xenograft models, including primary tumor cells from patients with diffuse large B-cell lymphoma (DLBCL) and B-ALL. In addition, the combination of rituximab and TG-1801 demonstrated to be an effective treatment option for B-cell lymphomasenhanced activity over TG-1801 monotherapy.

In summary, TG-1801 demonstrates anti-tumor activity in both in vitro assays (ADCP and autoimmune diseases.

COSTS AND TIME TO COMPLETE PRODUCT DEVELOPMENT
ADCC) and in vivo animal tumor models.

In the first quarter of 2019, we commenced a Phase 1 first-in-human, dose-escalation study of TG-1801. This study is evaluating escalating doses of TG-1801 in patients with B-Cell lymphoma. The information below provides estimates regarding the costs associated with the completionprimary objective of the current development phasestudy is to determine the recommended Phase 2 dose and our current estimated rangeto characterize the safety profile of TG-1801. Key secondary objectives are to evaluate the time that will be necessary to complete that development phase for our key pipeline products. We also direct your attention to the risk factors which could significantly affect our ability to meet these costpharmacokinetics of TG-1801 and time estimates foundits preliminary anticancer activity.  Enrollment is ongoing in this report in Item 1A under the heading “Risks RelatedPhase 1 study.

Preclinical Programs

In addition to the Company’s Businessour clinical programs, we currently have licensed preclinical programs for BET (TG-1601), IRAK4, and Industry.” 


Product candidateTarget indicationDevelopment status
 Completion of phase
Estimated cost to complete phase
TG-1101 & TGR-1202
In combination in CLL patients
Phase III
2018*
Approximately $7 million
TGR-1202 +/- TG-1101
In combination in relapsed/refractory NHL patients
Phase IIb
2019*
Approximately $10 million
TG-1101
In relapsing forms of Multiple Sclerosis 
Phase III 
2021
Approximately $50 million 
*Completion of phase for this study indicates completion of portion of study, which, if successful, would support an accelerated approval
Completion dates and costs in the above table are estimates due to the uncertainties associated with clinical trials and the related requirements of development. In the cases where the requirements for clinical trials and development programs have not been fully defined, or are dependent on the success of other trials, we cannot estimate trial completion or cost with any certainty. The actual spending on each trial during the year is also dependent on funding. We therefore direct your attention to Item 7 under the heading “Liquidity and Capital Resources.”
GITR.

INTELLECTUAL PROPERTY AND PATENTS

General

Our goal is to obtain, maintain and enforce patent protection for our products, formulations, processes, methods and other proprietary technologies, preserve our trade secrets, and operate without infringing on the proprietary rights of other parties, both in the United States and in other countries. Our policy is to actively seek to obtain, where appropriate, the broadest intellectual property protection possible for our product candidates, proprietary information and proprietary technology through a combination of contractual arrangements and patents, both in the U.S. and elsewhere in the world.

We also depend upon the skills, knowledge and experience of our scientific and technical personnel, as well as that of our advisors, consultants and other contractors. This knowledge, trade secrets, proprietary information and experience we call “know-how.” To help protect our proprietary know-how which is not patentable, and for inventions for which patents may be difficult to enforce, we rely on trade

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secret protection and confidentiality agreements to protect our interests. To this end, we require all employees, consultants, advisorsseek to protect our proprietary technology and other contractors to enterprocesses, in part, by entering into confidentiality agreements which prohibitwith our collaborators, scientific advisors, employees and consultants, and invention assignment agreements with our employees and consultants. There can be no assurance, however, that we can prevent unauthorized disclosure or use of our trade secrets, know-how and proprietary information despite the disclosureexistence of confidential information and, where applicable, require disclosure and assignment to us of the ideas, developments, discoveries and inventions important to our business.

confidentiality agreements.

Patents and other proprietary rights are crucial to the development of our business. We will be able to protect our proprietary technologies from unauthorized use by third parties only to the extent that our proprietary rights are covered by valid and enforceable patents, supported by regulatory exclusivity or are effectively maintained as trade secrets. We have a number of patents and patent applications related to our compounds and other technology, but we cannot guarantee the scope of protection of the issued patents, or that such patents will survive a validity or enforceability challenge, or that any of the pending patent applications will issue as patents.

Generally, patent applications in the U.S. are maintained in secrecy for a period of 18 months or more. Since publication of discoveries in the scientific or patent literature often laglags behind actual discoveries, we are not certain that we were the first to make the inventions covered by each of our pending patent applications or that we were the first to file those patent applications. The patent positions of biotechnology and pharmaceutical companies are highly uncertain and involve complex legal and factual questions. Therefore, we cannot predict the breadth of claims allowed in biotechnology and pharmaceutical patents, or their enforceability. To date, there has been no consistent policy regarding the breadth of claims allowed in biotechnology patents. Third parties or competitors may challenge or circumvent our patents or patent applications, if issued. If our competitors prepare and file patent applications in the U.S. that claim technology also claimed by us, we may have to participate in interference proceedings declared by the U.S. Patent and Trademark Office to determine priority of invention, which could result in substantial cost, even if the eventual outcome is favorable to us. Because of the extensive time required for development, testing and regulatory review of a potential product, it is possible that before we commercialize any of our products, any related patent may expire or remain in existence for only a short period following commercialization, thus reducing any advantage of the patent. However, the life of a patent covering a product that has been subject to regulatory approval may have the ability to be extended through the patent restoration program, although any such extension could still be minimal.


If a patent is issued to a third party containing one or more preclusive or conflicting claims, and those claims are ultimately determined to be valid and enforceable, we may be required to obtain a license under such patent or to develop or obtain alternative technology. In the event of litigation involving a third partythird-party claim, an adverse outcome in the litigation could subject us to significant liabilities to such third party, require us to seek a license for the disputed rights from such third party, and/or require us to cease use of the technology. Further, our breach of an existing license or failure to obtain a license to technology required to commercialize our products may seriously harm our business. We also may need to commence litigation to enforce any patents issued to us or to determine the scope and validity of third-party proprietary rights. Litigation would involve substantial costs.
TG-1101

We, or those companies from which we have licensed our drug candidates, file patent applications directed to our drug candidates in an effort to establish intellectual property positions regarding these new chemical entities as well as uses of these new chemical entities in the treatment of diseases. We also file patent applications directed to novel combinations of our drugs together and with drugs developed by others. The intellectual property portfolios for our most advanced drug candidates as of February 2021 are summarized below. Each of these portfolios contains one or more pending patent applications covering our products and product candidates and uses and combinations thereof.  For those patents, prosecution is in progress. Prosecution is a lengthy process, during which the scope of the claims initially submitted for examination by the USPTO is often significantly narrowed by the time they issue, if they issue at all. This may be the case with respect to our pending patent applications referred to below.

UKONIQ (umbralisib)

Pursuant to our license for TG-1101 (ublituximab)UKONIQ with Rhizen, we have the exclusive commercial rights to a series of patents and patent applications in the U.S. and multiple countries around the world. The patent applications include composition of matter patents relating to the structure, mechanism of action, and formulation for UKONIQ as well as method of use patents which cover use of UKONIQ in combination with various agents and for various therapeutic indications.

The composition of matter patent for UKONIQ has been issued in the U.S., Europe, and other jurisdictions, including Canada, China, Korea, Japan, and Australia.  The expected expiration of the composition of matter patent is 2033, exclusive of patent term extensions, which could result in later expiration dates. Applications are pending in other jurisdictions. We also have a method of use patent on the combination of UKONIQ and ublituximab, which has been issued in the U.S., Europe, and other jurisdictions, including Australia, China, Korea, and Japan, and is pending in other territories.  The expected expiration of the method of use patent for the combination of UKONIQ and ublituximab is 2033.

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Ublituximab

Pursuant to our license for ublituximab with LFB Biotechnologies, GTC Biotherapeutics, and LFB/GTC LLC, we have the exclusive commercial rights to a series of patents and patent applications in the U.S. and in multiple countries around the world, as well as a non-exclusive license to additional background patent rights. These patents and patent protectionsapplications include composition of matter patents relating to the structure and mechanism of action for TG-1101ublituximab, as well as method of use patents which cover use of TG-1101ublituximab in combination with various agents and for various therapeutic indications.

The composition of matter patent for TG-1101ublituximab has been issued in the United StatesU.S., Europe and Europe, which affordsother jurisdictions, including Australia, Canada, China, Japan, Korea, and India.  The expected expiration for the composition of matter patent protection untilis 2029 in the USU.S. and 2025 in Europe and other non-US jurisdictions, exclusive of patent term extensions.extensions, which could result in later expiration dates. We also have a method of use patent on the combination of TGR-1202UKONIQ and TG-1101ublituximab, which has been issued in the U.S., Europe, and other jurisdictions, including Australia, China, Korea, and Japan, and is pending in other territories.  The expected expiration of the method of use patent for the combination of UKONIQ and ublituximab is 2033.

Cosibelimab (anti-PD-L1 monoclonal antibody)

Pursuant to our Global Collaboration with Checkpoint Therapeutics, we have the exclusive commercial rights in the treatment of hematological cancers and autoimmune diseases to a series of patents and patent applications. Patents to the anti-PD-L1 antibody and methods of use have issued in the U.S., Australia, Japan, Israel, Korea, and Mexico, and are pending in other jurisdictions. Any patents maturing from these pending applications are expected to expire no sooner than October 2033. A patent directed to the composition of matter of cosibelimab has issued in the United States and is expected to expire in 2037, exclusive of patent term extensions, which could result in later expiration dates.  Applications are pending in many other territories globally. Additionally, we have numerous granted patents and pedning patent applications outside the US which include claims directed to the composition of matter and methods of treatment with TG-1101 in various settings.

TGR-1202
jurisdictions.          

TG-1701 (BTK inhibitor)

Pursuant to our license for TGR-1202agreement with Rhizen,Jiangsu Hengrui, we have the exclusive commercial rights to a series of patent applications in the U.S. and abroad. The patent applications include compositiontreatment of matter patents relating to the structure, mechanism of action, and formulation for TGR-1202 as well as method of use patents which cover use of TGR-1202 in combination with various agents and for various therapeutic indications. Our composition of matter patent for TGR-1202 has been issued in the United States and Europe, which affords patent protection until 2033, exclusive of patent term extensions. We also have a method of use patent on the combination of TGR-1202 and TG-1101 which has been issued in the United States and is pending in other territories globally. All other patent applications currently filed for TG-1202 are currently pending. Because the dates for any potential regulatory approval are currently unknown we cannot predict the expected expiration date, and it is possible that the life of these patents following regulatory approval could be minimal.

IRAK4
Pursuant to our license for the IRAK4 program with Ligand, we have the exclusive commercial rightshematologic cancers to a patent family which covers the composition of matter and proposed methods of use for various therapeutic indications. All patent applications currently filed forindications in the IRAK4 programU.S. and certain other countries. Patents directed to the compound have granted in the U.S., Europe, and other jurisdictions, including Australia, Canada, Japan, China, and Korea and are currently pending. Because the date for any potential regulatory approval is currently unknown we cannot predict the expected expiration date, and it is possible that the life of these patents following regulatory approval could be minimal.
PD-L1 and GITR
to expire no sooner than October 2034.  Applications are pending in other jurisdictions.

TG-1801 (anti-CD47/anti-CD19 bispecific antibody)

Pursuant to our Global Collaborationjoint venture and license option agreement with Checkpoint,NovImmune, we maintain an exclusive option, exercisable at specific times during development, to license the intellectual property includescommercial rights to a series of global patent applications and patents, and the non-exclusive right to certain technology patent applications. Patents directed to a bispecific antibody have issued patents in a number of countries,Australia, China, Europe, Japan, and Russia and are pending in other jurisdictions including the United States and Europe, as well as pending patent applications in several countries elsewhere.  The PD-L1 segment of the portfolio includes patent applications pending in the United States, Australia, Canada, Europe, Israel and Korea.U.S. Any patents maturing from these pending applications will expire no sooner than October 2033.  The GITR segment of the portfolio includes an International Application No. PCT/US2015/054010, filed in October 2015. Any national stage applications, which are pursued off of this international application (including one in the United States Patent and Trademark Office), would expire no earlier than October 2035.


BET
Pursuant to our JBET Agreement with Checkpoint, the in-licensed patent estate includes two international (PCT) applications filed in March 2016 (WO 2016/157221) and September 2016, respectively, claiming the benefit of two earlier-filed Indian provisional applications. Any patents maturing from this patent estate are expected to expire no sooner than March 2036.
BTK
Pursuant to our BTK Agreement with Jiangsu, we have the exclusive commercial rights to a patent family which covers the composition of matterDecember 2033. 

Limitations on Patent Rights and proposed methods of use for various therapeutic indications. All patent applications currently filed for the BTK program are currently pending. Because the date for any potential regulatory approval is currently unknown we cannot predict the expected expiration date, and it is possible that the life of these patents following regulatory approval could be minimal.

Trade Secrets

The patent rights that we own or have licensed relating to our product candidates are limited in ways that may affect our ability to exclude third parties from competing against us if we obtain regulatory approval to market these product candidates. See “Item 1A – Risk Factors -- Risks Related to the Company’s Intellectual Property.

In addition, the limited patent protection may adversely affect the value of our products or product candidates and may inhibit our ability to obtain a corporate partner at terms acceptable to us, if at all.

Proof of direct infringement by a competitor for method of use patents can prove difficult because the competitors making and marketing a product typically do not engage in the patented use. Additionally, proof that a competitor contributes to or induces infringement of a patented method of use by another can also prove difficult because an off-label use of a product could prohibit a finding of contributory infringement, and inducement of infringement requires proof of intent by the competitor.

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Moreover, physicians may prescribe such a competitive identical product for indications other than the one for which the product has been approved, or off-label indications, that are covered by the applicable patents. Although such off-label prescriptions may directly infringe or contribute to or induce infringement of method of use patents, such infringement is difficult to prevent or prosecute.

In addition, the limited patent protection described above may adversely affect the value of our product candidates and may inhibit our ability to obtain a corporate partner at terms acceptable to us, if at all.
Other Intellectual Property Rights
We depend upon trademarks, trade secrets, know-how and continuing technological advances to develop and maintain our competitive position. To maintain the confidentiality of trade secrets and proprietary information, we require our employees, scientific advisors, consultants and collaborators, upon commencement of a relationship with us, to execute confidentiality agreements and, in the case of parties other than our research and development collaborators, to agree to assign their inventions to us. These agreements are designed to protect our proprietary information and to grant us ownership of technologies that are developed in connection with their relationship with us. These agreements may not, however, provide protection for our trade secrets in the event of unauthorized disclosure of such information.

Orphan Drug Designation

In addition to patent protection, we may utilize orphan drug regulations or other provisions of the Food, Drug and Cosmetic Act of 1938, as amended, or FDCA, to provide market exclusivity for certain of our drug candidates. Orphan drug regulations provide incentives to pharmaceutical and biotechnology companies to develop and manufacture drugs for the treatment of rare diseases, currently defined as diseases that exist in fewer than 200,000 individuals in the U.S., or, diseases that affect more than 200,000 individuals in the U.S. but that the sponsor does not realistically anticipate will generate a net profit. Under these provisions, a manufacturer of a designated orphan-drug can seek tax benefits, and the holder of the first FDA approval of a designated orphan product will be granted a seven-year period of marketing exclusivity for such FDA-approved orphan product.

Pursuant to these regulations, TG-1101 (ublituximab) hasublituximab received Orphan-Drug designationOrphan Drug Designation from the FDA for the treatment of Marginal Zone LymphomaMZL (Nodal and Extranodal) in September 2013, for the treatment of CLL in August of 2010, and Orphan-Drug designationOrphan Drug Designation by the European Medicines Agency (“EMA”) for the treatment of CLL in November of 2009.

We also obtained Orphan Drug designationDesignation for TGR-1202umbralisib as monotherapy for the treatment of CLL in August 2016, for the treatment of nodal, extranodal, and splenic MZL in April 2019, and for the treatment of FL in March 2020.  In addition, in January 2017, we announced that the FDA granted Orphan Drug designationDesignation covering the combination of TG-1101ublituximab and TGR-1202umbralisib for the treatment of patients with CLL and DLBCL. We believe that TG-1101

U.S. Patent Term Restoration and TGR-1202, as well asMarketing Exclusivity

Depending upon the timing, duration and specifics of the FDA approval of our other pipeline productsdrug candidates, some of our U.S. patents may be eligible for additional Orphanlimited patent term extension under the Drug designations; however, we cannot assure you that TG-1101, TGR-1202, or any other drug candidates we may acquire or in-license, will obtain such orphan drug designations. Additionally, upon FDA approval, we believe that TG-1101Price Competition and TGR-1202 each would qualifyPatent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a New Chemical Entity, or NCE, which provides forpatent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product’s approval date. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of an NDA or BLA plus the time between the submission date of an NDA or BLA and the approval of that application. Only one patent applicable to an approved drug is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. The USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. In the future, we intend to apply for restoration of patent term for one of our currently owned or licensed patents to add patent life beyond its current expiration date, depending on the expected length of the clinical trials and other factors involved in the filing of the relevant NDA or the BLA.

Also under the Hatch-Waxman Amendments, drugs that are new chemical entities (NCEs) are eligible for a five-year period of non-patent marketing exclusivity followingin the United States. During the exclusivity period, the FDA may not accept for review an abbreviated new drug application, or ANDA, or a 505(b)(2) NDA submitted by another company for another drug based on the same active moiety, regardless of whether the drug is intended for the same indication as the original innovator drug or for another indication, where the applicant does not own or have a legal right of reference to all the data required for approval. However, an application may be submitted after four years if it contains a certification of patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator NDA holder. The Hatch-Waxman Amendments also provide three years of marketing exclusivity for an NDA, or supplement to an existing NDA if new clinical investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to the approval of the application, for example new indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the modification for which the drug received approval on the basis of the new clinical investigations.  During this period, FDA will not approve an application filed by a third party for the protected conditions of use that relies on any of the data from the new clinical investigations that was submitted by the innovator company. Five-year and three-year exclusivity will not delay the submission or approval of a full NDA that does not rely on the innovator company’s data.

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The Biologics Price Competition and Innovation Act of 2009 (BPCIA) created a 12-year period of data exclusivity for innovator biologics. FDA therefore cannot assure you thatapprove a biosimilar application relying on data for a specific reference product until 12 years after the reference product is first licensed. BLA supplements are not eligible for any additional exclusivity. The objectives of the BPCIA are conceptually similar to those of the Hatch-Waxman Act described above. The implementation of an abbreviated approval pathway for biological products is under the direction of the FDA. Since the enactment of the BPCIA, the FDA has issued several draft guidance’s for industry related to the BPCIA, addressing scientific, quality and procedural issues relevant to an abbreviated application for a biosimilar product.  As of December 2020, FDA had approved 29 biosimilar applications.

Orphan drug exclusivity, as described below, may offer a seven-year period of marketing exclusivity, except in certain circumstances. Pediatric exclusivity is another type of regulatory market exclusivity in the United States. Pediatric exclusivity, if granted, adds six months to existing exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other drug candidates weexclusivity protection or patent term, may acquire or in-license, will obtain such Orphan Drug designation or that we will be granted based on the first to receive FDA approvalvoluntary completion of a pediatric trial in accordance with an FDA-issued “Written Request” for such drugs so as to be eligible for market exclusivity protection.

a trial.

LICENSING AGREEMENTS AND COLLABORATIONS

We have formed strategic alliances with a number of companies for the manufacture and commercialization of our products. Our current key strategic alliances are discussed below.

TG-1101

Ublituximab

LFB Biotechnologies S.A.S, GTC Biotherapeutics, LFB/GTC LLC.

In January 2012, we entered into an exclusive license agreement with LFB Biotechnologies, GTC Biotherapeutics, and LFB/GTC LLC, all wholly-owned subsidiaries of LFB Group, relating to the development and commercialization of TG-1101.ublituximab. Under the license agreement, we have acquired the exclusive worldwide rights (exclusive of France/Belgium) for the development and commercialization of TG-1101 (ublituximab).ublituximab. To date, we have made no payments to LFB Group andunder the license agreement, excluding an upfront equity payment. LFB Group is eligible to receive payments of up to an aggregate of approximately $31.0 million upon our successful achievement of certain clinical development, regulatory and sales milestones, in addition to royalty payments on net sales of TG-1101ublituximab at a royalty rate that escalates from mid-single digits to high-single digits. The license will terminate on a country by country basis upon the expiration of the last licensed patent right or 15 years after the first commercial sale of a product in such country, unless the agreement is earlier terminated (i) by LFB if the Company challenges any of the licensed patent rights, (ii) by either party due to a breach of the agreement, or (iii) by either party in the event of the insolvency of the other party.


Ildong Pharmaceutical Co. Ltd.

In November 2012, we entered into an exclusive (within the territory) sublicense agreement with Ildong relating to the development and commercialization of TG-1101ublituximab in South Korea and Southeast Asia. Under the terms of the sublicense agreement, Ildong has been granted a royalty bearing, exclusive right, including the right to grant sublicenses, to develop and commercialize TG-1101ublituximab in South Korea, Taiwan, Singapore, Indonesia, Malaysia, Thailand, Philippines, Vietnam, and Myanmar. To date, we have received $2 million in the form of an upfront payment from Ildong and are eligible to receive sales basedsales-based milestone payments up to an aggregate of $5 million and royalty payments on net sales of TG-1101ublituximab at a royalty rate that escalates from mid-teens to high-teens upon approval in South Korea and/or Southeast Asia. The license will terminate on a country by country basis upon the expiration of the last licensed patent right or 15 years after the first commercial sale of a product in such country, unless the agreement is earlier terminated (i) by Ildong if the Company challenges any of the licensed patent rights, (ii) by either party due to a breach of the agreement, or (iii) by either party in the event of the insolvency of the other party.

TGR-1202

UKONIQ (umbralisib)

In September 2014, we exercised our option to license the global rights to TGR-1202,umbralisib, thereby entering into an exclusive licensing agreement (the “TGR-1202“Umbralisib License”) with Rhizen Pharmaceuticals, S A (“Rhizen”) for the development and commercialization of TGR-1202.umbralisib. Prior to this, we had been jointly developing TGR-1202umbralisib in a 50:50 joint venture with Rhizen.

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Under the terms of the TGR-1202Umbralisib License, Rhizen received a $4.0 million cash payment and 371,530 shares of our common stock as an upfront license fee. With respect to TGR-1202,umbralisib, Rhizen will be eligible to receive regulatory filing, approval and sales basedsales-based milestone payments in the aggregate of approximately $175 million, a small portion of which will be payable on the first New Drug Application (NDA)NDA filing and the remainder on approval in multiple jurisdictions for up to two oncology indications and one non-oncology indication and attaining certain sales milestones. In addition, if TGR-1202umbralisib is co-formulated with another drug to create a new product (a "New Product"), Rhizen will be eligible to receive similar regulatory approval and sales basedsales-based milestone payments for such New Product. Additionally, Rhizen will be entitled to tiered royalties that escalate from high single digits to low double digits on our future net sales of TGR-1202umbralisib and any New Product. In lieu of sales milestones and royalties on net sales, Rhizen shallwill also be eligible to participate in sublicensing revenue, if any, based on a percentage that decreases as a function of the number of patients treated in clinical trials following the exercise of the license option. Rhizen will retain global manufacturing rights to TGR-1202,umbralisib, provided that they are price competitive with alternative manufacturers. The license will terminate on a country by country basis upon the expiration of the last licensed patent right or any other exclusivity right in such country, unless the agreement is earlier terminated (i) by us for any reason, (ii) by either party due to a breach of the agreement.

Cosibelimab

In March 2015, we entered into a Global Collaboration (the “Collaboration”) with Checkpoint Therapeutics, Inc. (“Checkpoint”) for the development and commercialization of Checkpoint’s anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies with an option to acquire rights in autoimmune diseases. These antibodies were generated at Dana-Farber Cancer Institute (Dana-Farber). In June 2019, we amended our Collaboration Agreement with Checkpoint to cover additional licenses necessary to continue the development of the anti-PD-L1 and anti-GITR research programs.  Under the terms of the initial Collaboration, we made an up-front payment of $500,000, and upon entering into the amended agreement, made an additional payment of $1,000,000.  Under the terms of the amended agreement, we will make development and sales-based milestone payments up to an aggregate of approximately $110 million, and will pay a tiered low double-digit royalty on net sales. The royalty term will terminate on a country by country basis upon the later of (i) ten years after the first commercial sale of any applicable licensed product in such country, or (ii) the expiration of the last-to-expire patent held by Dana Farber containing a valid claim to any licensed product in such country.

TG-1701 (BTK inhibitor)

In January 2018, we entered into a global exclusive license agreement with Jiangsu Hengrui Medicine Co., (“Hengrui”), to acquire worldwide intellectual property rights, excluding Asia but including Japan, and for the research, development, manufacturing, and commercialization of products containing or comprising of any of Hengrui’s Bruton’s Tyrosine Kinase inhibitors containing the compounds of either TG-1701 (SHR-1459 or EBI-1459) or TG-1702 (SHR-1266 or EBI-1266) for hematologic malignancies. Pursuant to the agreement, we paid Hengrui an upfront fee of $1.0 million in our common stock in April 2018. In addition, in July 2019, we paid Jiangsu the first milestone under the agreement of $0.1 million in our common stock. Hengrui is eligible to receive milestone payments totaling approximately $350 million upon and subject to the achievement of certain milestones. Various provisions allow for payments in conjunction with the agreement to be made in cash or our common stock, while others limit the form of payment. Royalty payments in the low double digits are due on net sales of licensed products and revenue from sublicenses. Additionally, before we can license, sell, develop, or commercialize ublituximab within China, we must notify Hengrui, giving Hengrui the right of first offer. The agreement allows combinations of TG-1701 or TG-1702 with umbralisib, ublituximab, or U2. Additional combinations may be undertaken under the agreement subject to additional pre-specified payments to Hengrui.

The term of the agreement expires after the expiration of the last royalty term to expire with respect to any of the patent rights under the agreement. We or Hengrui may terminate the agreement upon notice to the other upon breach without remedy or upon insolvency. In addition, either party may terminate the agreement upon a material breach, after providing the other party with adequate notice and allowing 45 days to cure.

TG-1801 (anti-CD47/anti-CD19 bispecific antibody)

In June 2018, we entered into a Joint Venture and License Option Agreement with Novimmune SA (“Novimmune”) to collaborate on the development and commercialization of Novimmune’s novel first-in-class anti-CD47/anti-CD19 bispecific antibody known as TG-1801 (previously NI-1701). The companies will jointly develop the product on a worldwide basis, focusing on indications in the area of hematologic B-cell malignancies. We serve as the primary responsible party for the development, manufacturing and commercialization of the product. Pursuant to the agreement, in June 2018 we paid Novimmune an upfront payment of $3.0 million in our common stock. Further milestone payments will be paid based on early clinical development, and the Company will be responsible for the costs of clinical

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development of the product through the end of the Phase 2 clinical trials, after which the Company and Novimmune will be jointly responsible for all development and commercialization costs. The Company and Novimmune will each maintain an exclusive option, exercisable at specific times during development, for the Company to license the rights to TG-1801, in which case Novimmune is eligible to receive additional milestone payments totaling approximately $185 million as well as tiered royalties on net sales in the high single to low double digits upon and subject to the achievement of certain milestones.

IRAK4

In June 2014, we entered into an exclusive licensing agreement with Ligand Pharmaceuticals Incorporated ("Ligand"(“Ligand”) for the development and commercialization of Ligand's interleukin-1 receptor associated kinase-4 ("IRAK4"(“IRAK4”) inhibitor technology, which currently is in preclinical development for potential use against certain cancers and autoimmune diseases. IRAK4 is a serine/threonine protein kinase that is a key downstream signaling component of the interleukin-1 receptor and multiple toll-like receptors.

Under the terms of the license agreement, Ligand received 125,000 shares of our common stock as an upfront license fee. Ligand will also be eligible to receive maximum potential milestone payments of approximately $207 million upon the achievement of specific clinical, regulatory and commercial milestone events. Additionally, Ligand will be entitled to royalties on our future net sales of licensed products containing IRAK4 inhibitors. The basic royalty rate for licensed products covered by Ligand's issued patents will be 6% for annual sales of up to $1 billion and 9.5% for annual sales in excess of that threshold. The license will terminate on a country by country basis upon the expiration of the last licensed patent right or 10 years after the first commercial sale of a product in such country, unless the agreement is earlier terminated by either party due to a breach of the agreement in the event of the insolvency of the other party.


PD-L1 and GITR
In March 2015, we entered into a Global Collaboration (the “Collaboration”) with Checkpoint Therapeutics, Inc. (“Checkpoint”), a subsidiary of FBIO for the development and commercialization of Checkpoint’s anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies.

Under the terms of the Collaboration, we made an up-front payment of $500,000, will make development and sales-based milestone payments up to an aggregate of $164 million, and will pay a tiered single digit royalty on net sales. The royalty term will terminate on a country by country basis upon the later of (i) ten years after the first commercial sale of any applicable licensed product in such country, or (ii) the expiration of the last-to-expire patent held by Dana Farber containing a valid claim to any licensed product in such country.
BET

TG-1601 (BET inhibitor)

In May 2016, as part of a broader agreement with Jubilant Biosys (“Jubilant”), an India-based biotechnology company, we entered into a sub-license agreement (“JBET Agreement”)(JBET Agreement) with Checkpoint for the development and commercialization of Jubilant’s novel BET inhibitor program in the field of hematological malignancies. The BET inhibitor program is the subject of a family of patents covering compounds that inhibit BRD4, a member of the BET (Bromodomain and Extra Terminal) domain for cancer treatment. Our BET inhibitor program is currently in pre-clinical development.

Under the terms of the agreement, we paid Checkpoint an up-front licensing fee of $1.0 million and will make additional payments contingent on certain preclinical, clinical, and regulatory milestones, including commercial milestones totaling up to approximately $177 million and a single-digit royalty on net sales.  TG will also provide funding to support certain targeted research efforts at Jubilant.

BTK
In January 2018, we entered into a global exclusive license agreement with Jiangsu Hengrui Medicine Co., or Jiangsu, to acquire worldwide intellectual property rights, excluding Asia but including Japan, and for the research, development, manufacturing, and commercialization of products containing or comprising of any of Jiangsu’s Bruton’s Tyrosine Kinase inhibitors containing the compounds of either TG-1701 (SHR-1459 or EBI-1459) or TG-1702 (SHR-1266 or EBI-1266). Pursuant to the agreement, we paid Jiangsu an upfront fee of $1.0 million in our common stock. Jiangsu is eligible to receive milestone payments totaling approximately $350 million upon and subject to the achievement of certain milestones. Various provisions allow for payments in conjunction with the agreement to be made in cash or our common stock, while others limit the form of payment. Royalty payments in the low double digits are due on net sales of licensed products and revenue from sublicenses. Additionally, before we can license, sell, develop, or commercialize ublituximab (TG-1101) within China, we must notify Jiangsu, giving Jiangsu the right of first offer.
The term of the agreement expires after the expiration of the last royalty term to expire with respect to any of the patent rights under the agreement. We or Jiangsu may terminate the agreement upon notice to the other upon breach without remedy or upon insolvency. In addition, either party may terminate the agreement upon a material breach, after providing the other party with adequate notice and allowing 45 days to cure.

COMPETITION

Competition in the pharmaceutical and biotechnology industries is intense. Our competitors include pharmaceutical companies and biotechnology companies, as well as universities and public and private research institutions. In addition, companies that are active in different but related fields represent substantial competition for us. Many of our competitors have significantly greater capital resources, larger research and development staffs and facilities and greater experience in drug development, regulation, manufacturing and marketing than we do. These organizations also compete with us to recruit qualified personnel, attract partners for joint ventures or other collaborations, and license technologies that are competitive with ours. To compete successfully in this industry, we must identify novel and unique drugs or methods of treatment and then complete the development of those drugs as treatments in advance of our competitors.


The drugs that we are attempting to develop will have to compete with existing therapies. In addition, a large number of companies are pursuing the development of pharmaceuticals that target the same diseases and conditions that we are targeting. Other companies have products or drug candidates in various stages of pre-clinical or clinical development to treat diseases for which we are also seeking to discover and develop drug candidates. Some of these potential competing drugs are further advanced in development than our drug candidates and may be commercialized earlier. The resulting changes in standard of care can impact the likelihood of regulatory accelerated approval opportunities for our drug candidates.

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For the cancer indications for which we expect TG-1101 to compete directly with Roche Group’s Rituxan® (rituximab) and Gazyva® (obinutuzumab or GA-101), and Novartis’ Arzerra® (ofatumumab) among others, each of which is currently approved for the treatment of various diseases including NHL and CLL. In addition,are developing our products there are a number of established therapies with which we will compete:

For the treatment of Chronic Lymphocytic Leukemia, if U2 is approved, we expect U2 to compete with approved drugs such as ibrutinib (AbbVie and Janssen), acalabrutinib (AstraZeneca), venetoclax (AbbVie and Roche), obinutuzumab (Roche), idelalisib (Gilead), duvelisib (Verastem), and established treatments such as rituximab (Roche), and several generically available chemotherapies. Additionally, there are second generation BTK inhibitors similar to ibrutinib in late-stage clinical testing for CLL that could enter the market in the next 12-36 months. Each of these agents can be used as monotherapy or in combination with one or more of the other agents.
For the treatment of Marginal Zone Lymphoma, we expect UKONIQ (umbralisib) to compete with ibrutinib (AbbVie and Janssen), lenalidomide (Bristol-Myers), and established treatments such as rituximab, and several generically available chemotherapies. There are several kinase inhibitors in earlier stages of development.
For the treatment of Follicular Lymphoma, we expect umbralisib to compete with approved drugs such as obinutuzumab (Roche), idelalisib (Gilead), copanlisib (Bayer), duvelisib (Verastem), lenalidomide (Bristol-Myers), tazemetostat (Epizyme), and established treatments such as rituximab (Roche), and several generically available chemotherapies. Each of these agents can be used as monotherapy or in combination with one or more of the other agents. There are several kinase inhibitors in earlier stages of development. In addition, a number of pharmaceutical companies are developing antibodies and bispecific antibodies targeting CD20, CD19, CD47 and other B-cell associated targets, chimeric antigen receptor T-cell (“CAR-T”) immunotherapy, and other B-cell ablative therapy which, if approved, would potentially compete with U2 and UKONIQ.

For Multiple Sclerosis for which we are developing antibodies targeting CD20, CD19,ublituximab there are a number of established therapies with which we will compete:

If ublituximab is approved, we expect ublituximab will primarily compete against other CD20 targeted agents, while the group of CD20 targeted agents will also compete broadly against a number of already approved MS therapies. Currently, there are two anti-CD20 monoclonal antibodies approved, ocrelizumab (Roche) and ofatumumab (Novartis).

Cosibelimab, TG-1701 and other B-cell associated targets, chimeric antigen receptor T-cell (CAR-T) immunotherapy, and other B-cell ablative therapy which,TG-1801 if approved would potentially compete with TG-1101 both in oncology settings as well as in autoimmune disorders. Earlier this year,will also face competition from drugs on the Roche Group’s anti-CD20 antibody ocrelizumab was approved for the treatment of MS. Genmabmarket and GSK’s (ofatumumab) is also under clinical development for patients with MS. New developments, including the development of other pharmaceutical technologies and methods of treating disease, occurthat are in the pharmaceutical and life sciences industries at a rapid pace. 

With respect to TGR-1202, there are several PI3K delta targeted compounds both approved, suchsame therapeutic class as Gilead’s Zydelig® (idelalisib) and Bayer’s Aliqopa™ (copanlisib), and in development, including, but not limited to, Verastem’s duvelisib which if approved we would expect to compete directly with TGR-1202. In addition, there are numerous other novel therapies targeting similar pathways to TGR-1202 both approved and in development, which could also compete with TGR-1202 in similar indications, such as the BTK inhibitor, ibrutinib (FDA approved for MCL, CLL, Marginal Zone Lymphoma and WM and marketed by AbbVie and Janssen), the BTK inhibitor acalabrutinib (FDA approved for MCL and marketed by AstraZeneca), or the BCL-2 inhibitor venetoclax (FDA approved for CLL and marketed by AbbVie and Roche).
each of those drugs.

Additional information can be found under Item “1A - Risk Factors – Other Risks Related to Our Business” within this report.

SUPPLY AND MANUFACTURING

We have limited experience in manufacturing products for clinical or commercial purposes. We currently do not have any manufacturing capabilities.capabilities of our own. We have established contract manufacturing relationships for the supply of TG-1101 as partublituximab. For the supply of our license agreement with LFB Biotechnologies and also with a U.S. based contract manufacturer. We have alsoumbralisib, Rhizen has established contract manufacturing relationships for the supply of TGR-1202 as part of our licensing agreement with Rhizen.agreement. As with any supply program, obtaining pre-clinical and clinical materials of sufficient quality and quantity to meet the requirements of our development programs cannot be guaranteed and we cannot ensure that we will be successful in this endeavor. In addition, we anticipate the need for the current scale of production for each of our products to be significantly expanded as we enter later stagesmove closer to commercialization for ublituximab we will need to scale-up production to ensure adequate commercial supply, complete validation batches and complete pre-approval inspection batches. We have completed validation batches and are currently in the process of development. Therescaling up ublituximab production, including completing pre-approval inspection batches for ublituximab. This is an expensive process which will require significant investment on our part over the next 24 months and there can be no assurance given that such scale-up and process validation will be successful in providing pharmaceutical product that is of sufficient quantity, or of a quality that is consistent with our previously established specifications, or that meets the requirements set by regulatory agencies under which we may seek approval of our product candidates.

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Process improvements are common during clinical development to accommodate raw material and component variability, enhance productivity and/or accommodate different or larger equipment utilized during the scale-up process required for commercial manufacture. These types of incremental process changes have been made during clinical development for both TG’s small and large molecule programs. For example, our UNITY-CLL Phase 3 clinical trial contains ublituximab produced from both a pre-commercial process and the current commercial process. While there are some analytical differences between the two materials, we do not expect those differences to have an effect on the clinical performance of ublituximab. The primary difference is that the commercial process has resulted in further enhancement to the ADCC effect, potentially enhancing potency. We will analyze the Phase 3 data to ensure that the materials are substantially similar in performance. If there are material differences in safety or efficacy, we may need to adjust our statistical analysis of the Phase 3 study, which could impact the approvability of the U2 combination in CLL.

At the time of commercial sale, to the extent possible and commercially practicable, we would seek to engage a back-up suppliersuppliers for raw materials, manufacturing and testing services for each of our product candidates. Until such time, we expect that we will rely on a single contract manufacturer to produce each of our product candidates under current Good Manufacturing Practice, or cGMP, regulations. Our third-party manufacturers have a limited number of facilities in which our product candidates can be produced and will have limited experience in manufacturing our product candidates in quantities sufficient for commercialization. Our third-party manufacturers will have other clients and may have other priorities that could affect their ability to perform the work satisfactorily and/or on a timely basis. Both of these occurrences would be beyond our control. 


We expect to similarly rely on contract manufacturing relationships for any products that we may in-license or acquire in the future. However, there can be no assurance that we will be able to successfully contract with such manufacturers on terms acceptable to us, or at all.

Contract manufacturers in the U.S. are subject to ongoing periodic and unannounced inspections by the FDA, the Drug Enforcement Administration if applicable, and corresponding state agencies to ensure strict compliance with cGMP and other state and federal regulations. Our contractorsContract manufacturers outside of the United States face similar challenges from the numerous local and regional agencies and authorized bodies. We do not have control over third-party manufacturers’ compliance with these regulations and standards, other than through contractual obligations. If they are deemed out of compliance with cGMPs, product recalls could result, inventory could be destroyed, production could be stopped and supplies could be delayed or otherwise disrupted.

If we need to change manufacturers after commercialization, the FDA and corresponding foreign regulatory agencies must approve these new manufacturers in advance, which will involve testing, regulatory submissions, and additional inspections to ensure compliance with FDA regulations and standards and may require significant lead times and delay. Furthermore, switching manufacturers may be difficult because the number of potential manufacturers is limited. It may be difficult or impossible for us to find a replacement manufacturer quickly or on terms acceptable to us, or at all.

GOVERNMENT AND INDUSTRY REGULATION

Numerous governmental authorities, principally the FDA and corresponding state and foreign regulatory agencies, impose substantial regulations upon the clinical development, manufacture and marketing of our drugproduct candidates, as well as our ongoing research and development activities.  We, along with our third-party contractors, will be required to navigate the various pre- and post-approval requirements of the governing regulatory agencies of the jurisdictions in which we wish to conduct clinical studies or market our product candidates.  None of our drugproduct candidates, except UKONIQ, have been approved for sale in any market in which we have marketing rights. Before marketing in the U.S., any drug that we develop must undergo rigorous pre-clinical testing and clinical trials and an extensive regulatory review and approval process implemented by the FDA under the FDCA.FDCA and, in the case of biologics, the Public Health Service Act (PHS Act). The FDA regulates, among other things, the pre-clinical and clinical testing, safety, efficacy, approval, manufacturing, quality control and assurance, record keeping, pharmacovigilance and adverse event reporting, packaging, labeling, storage, advertising, promotion, import and export, sale and distribution of biopharmaceutical products.

 The process of obtaining regulatory approvals and the subsequent compliance with applicable federal, state, local and foreign statutes and regulations require the expenditure of substantial time and financial resources.

Product Development and Applications for Marketing Authorization

The regulatory review and approval process is lengthy, expensive and uncertain. We are required to submit extensive pre-clinical and clinical data and supporting information to the FDA for each indication or use to establish a drug candidate’s safety and efficacy before

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we can secure FDA approval to market or sell a product in the U.S. The approval process takes many years, requires the expenditure of substantial resources and may involve ongoing requirements for post-marketing studies or surveillance. Before commencing clinical trials in humans, we must submit an IND to the FDA containing, among other things, pre-clinical data, chemistry, manufacturing and control information, and an investigative plan. Our submission of an IND may not result in FDA authorization to commence a clinical trial.

The FDA may permit expedited development, evaluation, and marketing of new therapies intended to treat persons with serious or life-threatening conditions for which there is an unmet medical need under its fast track drug development programs. A sponsor can apply for fast track designation at the time of submission of an IND, or at any time prior to receiving marketing approval of the new drug application, or NDA. To receive Fast Track designation, an applicant must demonstrate:
that the drug is intended to treat a serious or life-threatening condition;
that the drug is intended to treat a serious aspect of the condition; and

that the drug has the potential to address unmet medical needs, and this potential is being evaluated in the planned drug development program.

The FDA must respond to a request for fast track designation within 60 calendar days of receipt of the request. Over the course of drug development, a product in a fast track development program must continue to meet the criteria for fast track designation. Sponsors of products in fast track drug development programs must be in regular contact with the reviewing division of the FDA to ensure that the evidence necessary to support marketing approval will be developed and presented in a format conducive to an efficient review. Sponsors of products in fast track drug development programs ordinarily are eligible for priority review of a completed application in six months or less and also may be permitted to submit portions of a New Drug Application (“NDA”) to the FDA for review before the complete application is submitted.
Sponsors of drugs designated as fast track also may seek approval under the FDA’s accelerated approval regulations. Under this authority, the FDA may grant marketing approval for a new drug product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity.   Approval will be subject to the requirement that the applicant study the drug further to verify and describe its clinical benefit where there is uncertainty as to the relation of the surrogate endpoint to clinical benefit or uncertainty as to the relation of the observed clinical benefit to ultimate outcome.  Post-marketing studies are usually underway at the time an applicant files the NDA.  When required to be conducted, such post-marketing studies must also be adequate and well-controlled.  The applicant must carry out any such post-marketing studies with due diligence. Many companies who have been granted the right to utilize an accelerated approval approach have failed to obtain approval. Moreover, negative or inconclusive results from the clinical trials we hope to conduct or adverse medical events could cause us to have to repeat or terminate the clinical trials. Accordingly, we may not be able to complete the clinical trials within an acceptable time frame, if at all, and, therefore, could not submit the NDA to the FDA or foreign regulatory authorities for marketing approval.
In addition, sponsors may also apply to the FDA for Breakthrough Therapy Designation. The Breakthrough Therapy Designation is intended to expedite the development and review of a potential new drug for serious or life-threatening diseases where “preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development.” The designation of a drug as a Breakthrough Therapy was enacted as part of the 2012 Food and Drug Administration Safety and Innovation Act.

Clinical testing must meet requirements for institutional review board oversight, informed consent and good clinical practices, and must be conducted pursuant to an IND, unless exempted.

For purposes of NDA approval, clinical trials are typically conducted in the following sequential phases:
Phase 1 : The drug is administered to a small group of humans, either healthy volunteers or patients, to test for safety, dosage tolerance, absorption, metabolism, excretion, and clinical pharmacology.
Phase 2 : Studies are conducted on a larger number of patients to assess the efficacy of the product, to ascertain dose tolerance and the optimal dose range, and to gather additional data relating to safety and potential adverse events.
Phase 3 : Studies establish safety and efficacy in an expanded patient population.
Phase 4 : The FDA may require Phase 4 post-marketing studies to find out more about the drug’s long-term risks, benefits, and optimal use, or to test the drug in different populations.

The length of time necessary to complete clinical trials varies significantly and may be difficult to predict. Clinical results are frequently susceptible to varying interpretations that may delay, limit or prevent regulatory approvals. Additional factors that can cause delay or termination of our clinical trials, or that may increase the costs of these trials, include:
slow patient enrollment due to the nature of the clinical trial plan, the proximity of patients to clinical sites, the eligibility criteria for participation in the study or other factors;
inadequately trained or insufficient personnel at the study site to assist in overseeing and monitoring clinical trials or delays in approvals from a study site’s review board;
longer treatment time required to demonstrate efficacy or determine the appropriate product dose;
insufficient supply of the drug candidates;
adverse medical events or side effects in treated patients; and
ineffectiveness of the drug candidates.
In addition, the FDA, equivalent foreign regulatory authority, or a data safety monitoring committee for a trial may place a clinical trial on hold or terminate it if it concludes that subjects are being exposed to an unacceptable health risk, or for futility. Any drug is likely to produce some toxicity or undesirable side effects in animals and in humans when administered at sufficiently high doses and/or for a sufficiently long period of time. Unacceptable toxicity or side effects may occur at any dose level at any time in the course of studies in animals designed to identify unacceptable effects of a drug candidate, known as toxicological studies, or clinical trials of drug candidates. The appearance of any unacceptable toxicity or side effect could cause us or regulatory authorities to interrupt, limit, delay or abort the development of any of our drug candidates and could ultimately prevent approval by the FDA or foreign regulatory authorities for any or all targeted indications.

For purposes of clinical development and to pursue NDA or BLA approval, clinical trials are typically conducted in the following sequential phases:

Phase 1: The drug is administered to a small group of humans, either healthy volunteers or patients, to test for safety, dosage tolerance, absorption, metabolism, excretion, and clinical pharmacology.
Phase 2: Studies are conducted on a larger number of patients to assess the efficacy of the product, to ascertain dose tolerance and the optimal dose range, and to gather additional data relating to safety and potential adverse events.
Phase 3: Studies establish safety and efficacy in an expanded patient population.
Phase 4: The FDA may require Phase 4 post-marketing studies to find out more about the drug’s long-term risks, benefits, and optimal use, or to test the drug in different populations.
Sponsors

The length of time necessary to complete clinical trials varies significantly and may be difficult to predict. Clinical results are frequently susceptible to varying interpretations that may delay, limit or prevent regulatory approvals. Additional factors that can cause delay or termination of our clinical trials, or that may increase the costs of these trials, include:

slow patient enrollment due to the nature of the clinical trial plan, the proximity of patients to clinical sites, the eligibility criteria for participation in the study or other factors;
inadequately trained or insufficient personnel at the study site to assist in overseeing and monitoring clinical trials or delays in approvals from a study site’s review board;
longer treatment time required to demonstrate efficacy or determine the appropriate product dose;
insufficient supply of the drug candidates;
adverse medical events or side effects in treated patients; and
ineffectiveness of the drug candidates.

For clinical trials that are intended to form the basis of a new drug or biologics license application for approval, sponsors of drugs may apply for an SPA from the FDA. The SPA process is a procedureFDA, by which the FDA provides official evaluation and written guidance on the design and size of proposed protocols that are intended to formprotocols. While obtaining an SPA provides some assurance the basisdesign of a trial should be sufficient for a new drug application. However,approval, the final marketing approval depends on the results of efficacy, the adverse event profile and an evaluation of the benefit/risk of treatment demonstrated in the Phase 3 trial. The SPA agreement may only be changed through a written agreement between the sponsor and the FDA, or if the FDA becomes aware of a substantial scientific issue essential to product safety or efficacy.

In September 2015, we reached an agreement with the FDA regarding an SPA on the design, endpoints and statistical analysis approach of a Phase 3 clinical trial, referred to as the UNITY-CLL trial, for the proprietary combination of ublituximab and umbralisib, for the treatment of CLL. The SPA provides agreement that the Phase 3 trial design adequately addresses objectives that, if met, would support the regulatory submission for drug approval of both ublituximab and umbralisib in combination. Additionally, in August 2017, we reached

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Before

an agreement with the FDA regarding an SPA on the design of two Phase 3 clinical trials for ublituximab, referred to as the ULTIMATE I and ULTIMATE II Phase 3 clinical trials, for the treatment of relapsing forms of Multiple Sclerosis (RMS). The SPA provides agreement that the two Phase 3 trial designs adequately address objectives that, if met, would support the regulatory submission for approval of ublituximab. Despite obtaining an SPA the trials may not be positive and even if positive may not support FDA approval.

The FDA may permit expedited development, evaluation, and marketing of new therapies intended to treat persons with serious or life-threatening conditions for which there is an unmet medical need under its expedited drug development programs. A sponsor can apply for Fast Track designation at the time of submission of an IND, or at any time prior to receiving marketing approval of the new drug application, or NDA. To receive Fast Track designation, an applicant must demonstrate:

that the drug is intended to treat a serious or life-threatening condition; and
that nonclinical or clinical data demonstrate the potential to address an unmet medical need.

The FDA approvalmust respond to marketa request for Fast Track designation within 60 calendar days of receipt of the request. Over the course of drug development, a product wein a Fast Track development program must demonstratecontinue to meet the criteria for Fast Track designation. Sponsors of products in Fast Track drug development programs must be in regular contact with the reviewing division of the FDA to ensure that the product is safeevidence necessary to support marketing approval will be developed and effective for its intended use by submittingpresented in a format conducive to the FDAan efficient review. Sponsors of products in Fast Track drug development programs are also permitted to submit portions of an NDA or BLA containingto the pre-clinical and clinical data that have been accumulated, together with chemistry and manufacturing and controls specifications and information, and proposed labeling, among other things. The FDA may refuse to accept an NDA/BLA for filing if certain content criteria are not met and, even after accepting an NDA/BLA,on a rolling basis where the FDA may often require additional information, includingconsider reviewing portions of a marketing application before the sponsor submits the complete application.

In addition, sponsors may also apply to the FDA for Breakthrough Therapy Designation (“BTD”). The procedures and requirements for BTD are similar to those required for Fast Track such that the Breakthrough Therapy Designation is intended to expedite the development and review of a potential new drug for serious or life-threatening diseases, however, with BTD, there is a further requirement that the sponsor present “preliminary clinical data, beforeevidence” which “indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development.” The designation of a drug as a Breakthrough Therapy was enacted as part of the 2012 Food and Drug Administration Safety and Innovation Act.

In January 2019, we announced that the FDA granted Breakthrough Therapy Designation for umbralisib for the treatment of adult patients with marginal zone lymphoma (MZL) who have received at least one prior anti-CD20 regimen based on interim results from a subset of patients from the MZL cohort of the UNITY-NHL clinical trial.

Sponsors of drugs granted Fast Track or breakthrough therapy designation also may seek approval under the FDA’s accelerated approval regulations. Under this authority, the FDA may grant marketing approval for a new drug product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity. To obtain accelerated approval a sponsor must be able to demonstrate the drug candidate treats a serious condition, provides a meaningful advantage over other available therapies, and demonstrates an effect on a surrogate endpoint that is reasonably likely to predict clinical benefit.  Many companies have filed for accelerated approval and have subsequently failed to obtain such approval for a variety of reasons. To the extent a product does obtain an accelerated approval, such approval will be subject to the requirement that the applicant study the drug further in a post-marketing confirmatory clinical trial to verify and describe its clinical benefit where there is uncertainty as to the relation of the surrogate endpoint to clinical benefit or uncertainty as to the relation of the observed clinical benefit to ultimate outcome. Accelerated approval is sometimes referred to as conditional approval because if the results of these confirmatory clinical trials fail to verify clinical benefit, the FDA has the right to remove the drug from the market and has done so in the recent past.  Post-marketing confirmation studies are usually underway at the time an applicant files the NDA.  When required to be conducted, such post-marketing confirmation studies must also be adequate and well-controlled.  The applicant must carry out any such post-marketing confirmation studies with due diligence.

In February 2021, we obtained accelerated approval of marketingUKONIQ for relapsed or refractory MZL who have received at least one prior anti-CD20-based regimen and for relapsed or refractory FL who have received at least three prior lines of systemic therapy.  The FDA approved these indications based on overall response rate. Continued approval for these indications may be contingent upon verification and description of clinical benefit in a product.confirmatory trial.

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It is also becoming more common for the FDA to request a Risk Evaluation and Mitigation Strategy, or REMS, as part of aan NDA/BLA. The REMS plan contains post-market obligations of the sponsor to train prescribing physicians, monitor off-label drug use, and conduct sufficient Phase 4 follow-up studies and registries to ensure the continued safe use of the drug.


As part of

The NDA and BLA review process also generally includes a pre-approval inspection, or PAI, to assess the approval process, the FDA must inspectmanufacturing facilities and approve each manufacturing facility.relevant processes and data for compliance, and readiness for commercial manufacture in accordance with cGMPs. Among the conditions of approval is the requirement that a manufacturer’s quality controlsystems and manufacturing procedures conform to cGMP.  ManufacturersEven when product approval is received, manufacturers must expend significant time, money and effort to ensure continued compliance, and the FDA conducts periodic surveillance inspections to certifymonitor the manufacturing process and drug quality and evaluate whether the manufacturers are in compliance. It may be difficult for our manufacturers or us to comply with the applicable cGMP, as interpreted by the FDA, and other FDA regulatory requirements. If we, or our contract manufacturers, fail to comply, then the FDA may not allow us to market products that have been affected by the failure.

Many drug approvals have been delayed due to issues at contract manufacturing facilities. If the FDA grants approval, the approval will be limitedwe were to those disease states, conditionsexperience any such delay that would negatively impact our business and patient populationstimeline to commercialization of any of our drug candidates affected by such manufacturing issue.

Post-Approval Requirements

Any products for which the product is safe and effective, as demonstrated through clinical studies. Further, a product may be marketed only in those dosage forms and for those indications approved in the NDA/BLA. Certain changes to an approved NDA/BLA, including, with certain exceptions, any significant changes to labeling, requirewe receive FDA approval of a supplemental application before the drug may be marketed as changed. Any products that we manufacture or distribute pursuant to FDA approvals are subject to continuing monitoring and regulation by the FDA and other federal and state regulators on a wide range of matters, including, compliance with cGMPamong other things cGMPs and theproduct quality, pharmacovigilance and reporting of adverse experiencesevents, product distribution requirements, fulfilling post-marketing or confirmatory study or REMS commitments, and complying with the drugs. The nature of marketing claims that the FDA will permit us to make in the labelingpromotion and advertising of our products will generally be limited to those specified in FDA approved labeling, and the advertising of our products will be subject to comprehensive monitoring and regulation by the FDA. Drugs whose review was accelerated may carry additional restrictions on marketing activities, including the requirement that all promotional materials are pre-submitted to the FDA. Claims exceeding those contained in approved labeling will constitute a violation of the FDCA.requirements.  Violations of the FDCA or other post-approval regulatory requirements at any time during the product development process, approval process, or marketing and sale following approval may result in agency enforcement actions, including withdrawal of approval, recall, seizure of products, warning letters, injunctions, fines and/or civil or criminal penalties. Any agency enforcement action could have a material adverse effect on our business.

The FDA promotion and advertising requirements applicable to marketed products include, among other things, standards for direct-to-consumer advertising, restrictions against promoting products for uses or in patient populations that are not either described in the product’s approved indications and uses or otherwise consistent with the FDA-approved product labeling, limitations on industry-sponsored scientific and educational activities, rules regarding communication of health care economic information regarding biopharmaceutical products to payors and formularies, and requirements for promotional activities involving the internet. Drugs whose review was accelerated may carry additional requirements on marketing activities, including the requirement that all promotional materials are pre-submitted to the FDA. Although a healthcare provider may prescribe a product for a use that has not been approved by the FDA when the healthcare provider deems such use to be appropriate in his or her professional medical judgment, manufacturers may not market or promote unapproved uses. Although court decisions have to some degree impacted FDA’s enforcement activity regarding alleged off-label promotion in light of First Amendment considerations, there are still significant risks in this area, in part because there is the potential for False Claims Act exposure in addition to the potential for enforcement under the FDCA.

After product approval, quality control and manufacturing procedures must continue to conform to applicable manufacturing requirements. FDA regulations require among other things, quality control and quality assurance as well as the corresponding maintenance of records and documentation and the obligation to investigate and correct any deviations from cGMPs. Manufacturers and other entities involved in the manufacture and distribution of approved products are required to register their establishments and list their products with the FDA and certain state agencies.  Manufacturers and their third-party contractors may be subject to periodic unannounced inspections by the FDA and certain state agencies for assessment of compliance with cGMPs and other applicable laws. Accordingly, manufacturers must continue to expend time, money, and effort in the areas of production and quality control to maintain quality control and manufacturing compliance. Discovery of problems with a product after approval may result in restrictions on a product, including, among other things, withdrawal of approval, recall or withdrawal of the product from the market.  In addition, changes to the manufacturing process are strictly regulated, and depending on the significance of the change, may require prior FDA approval or notification before being implemented. Other types of changes to the approved product, such as adding new indications and claims to the product labeling, are also subject to further FDA review and approval.

Marketed products must meet the requirements of the Drug Supply Chain Security Act, or DSCSA, which regulates the commercial distribution of prescription drug products at the federal level.  The DSCSA sets certain standards for federal or state registration, requires tracing of products through the pharmaceutical distribution supply chain, and imposes other requirements on entities in the supply chain, including manufacturers and repackagers, wholesale distributors, third-party logistics providers, and dispensers. The DSCSA requirements, development of standards, and the system for product tracing have been and will continue to be phased in over a period of years, with FDA indicating enforcement discretion on certain aspects due to the COVID-19 pandemic.

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In addition, the postmarketing discovery of previously unknown problems with a product or the failure to comply with applicable FDA requirements can have negative consequences, including adverse publicity, judicial or administrative enforcement, warning letters from the FDA, mandated corrective advertising or communications with doctors, and civil or criminal penalties, among others. Newly discovered or developed safety or effectiveness data may require changes to a product’s approved labeling, including the addition of new warnings and contraindications, and may require the implementation of other risk management measures.

From time to time, legislation is drafted, introduced and passed in Congress that could significantly change the statutory provisions governing the approval, manufacturing and marketing of products regulated by the FDA.  In addition to new legislation, FDA regulations, guidance documents, and policies are often revised or reinterpreted by the agency in ways that may significantly affect our business.  It is impossible to predict whether further legislative or FDA regulation or policy changes will be enacted or implemented and what the impact of such changes, if any, may be.

Should we wish to market our products outside the U.S., we must receive marketing authorization from the appropriate foreign regulatory authorities. The requirements governing the conduct of clinical trials, marketing authorization, pricing and reimbursement vary widely from country to country. Importantly, the level of evidence of efficacy and safety necessary to apply for marketing authorization for a drug candidate differs from country to country. In particular, clinical trial endpoints, and the level of clinical evidence that may support an accelerated approval filing with the FDA, such as the ORR data from the single-arm cohorts of the UNITY-NHL study that we used as the basis for a filing and approval for UKONIQ in MZL and FL, may be insufficient to file for marketing applications outside of the U.S. At present, companies are typically required to apply for foreign marketing authorizations at a national level. However, within the European Union, centralized registration procedures are available to companies wishing to market a product in more than oneacross the European Union member state.states. Typically, if the regulatory authority is satisfied that a company has presented adequate evidence of safety, quality and efficacy, then the regulatory authority will grant a marketing authorization. This foreign regulatory approval process, however, involves risks similar or identical to the risks associated with FDA approval discussed above, and therefore we cannot guarantee that we will be able to obtain the appropriate marketing authorization for any product in any particular country.

Failure to comply with applicable federal, state and foreign laws and regulations would likely have a material adverse effect on our business. In addition, federal, state and foreign laws and regulations regarding the manufacture and sale of new drugs are subject to future changes. We cannot predict the likelihood, nature, effect or extent of adverse governmental regulation that might arise from future legislative or administrative action, either in the U.S. or abroad.

Coverage and Reimbursement

Sales of our drugs will depend, in part, on the extent to which our drugs will be covered by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. These third-party payors are increasingly reducing reimbursements for medical drugs and services. In addition, the containment of healthcare costs has become a priority of foreign and U.S. federal and state governments, and the prices of drugs have been a focus in this effort. The U.S. government, state legislatures and foreign governments have shown significant interest in implementing cost-containment programs, including price controls, restrictions on reimbursement, importation, and requirements for substitution of generic drugs. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could further limit our net revenue and results. Decreases in third-party reimbursement for our drug candidates, if approved, or a decision by a third-party payor to not cover our drug candidates could reduce physician usage of such drugs and have a material adverse effect on our sales, results of operations and financial condition.

In the U.S., the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively the Affordable Care Act, enacted in March 2010, has had a significant impact on the health care industry. The Affordable Care Act expanded coverage for the uninsured while at the same time containing overall healthcare costs. With regard to pharmaceutical products, the Affordable Care Act, among other things, created a new average manufacturer price definition under the Medicaid Drug Rebate Program for drugs that are inhaled, infused, instilled, implanted or injected and not generally dispensed through the retail channel, increased the minimum Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to individuals enrolled in Medicaid managed care organizations, established annual fees and taxes on manufacturers of certain branded prescription drugs, and 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 (subsequent legislation increased this to 70% effective as of January 1, 2019), as a condition for the manufacturer’s outpatient drugs to be covered under Medicare Part D.

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EMPLOYEES

Since the enactment of the Affordable Care Act, certain provisions of the Affordable Care Act have been subject to judicial challenges as well as efforts to repeal or replace them or to alter their interpretation or implementation.  For example, the Tax Cuts and Jobs Act enacted on December 22, 2017 (the Tax Act), eliminated the shared responsibility payment for individuals who fail to maintain minimum essential coverage under section 5000A of the Internal Revenue Code of 1986, commonly referred to as the individual mandate, effective January 1, 2019.  In December 2018, a United States District Court Judge for the Northern District of Texas ruled (i) that the “individual mandate” was unconstitutional as a result of the associated tax penalty being repealed by Congress as part of the Tax Act; and (ii) the individual mandate is not severable from the rest of the Affordable Care Act, and as a result the entire Affordable Care Act is invalid.  On December 18, 2019, the U.S. Court of Appeals for the Fifth Circuit affirmed the district court’s decision that the individual mandate is unconstitutional, but remanded the case to the district court to reconsider the severability question.  Thereafter, the U.S. Supreme Court agreed to hear this case. Oral argument in the case took place on November 10, 2020, and a ruling by the Court is expected sometime this year. Although litigation and legislation over the Affordable Care Act are likely to continue, with unpredictable and uncertain results, we expect that the Biden administration may seek to expand and strengthen the Affordable Care Act.

There has been increasing legislative and enforcement interest in the United States with respect to drug pricing practices.  Specifically, there have been several recent U.S. Congressional inquiries and proposed federal and state legislation designed to, among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs under Medicare, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs. The Trump administration issued five executive orders intended to lower the costs of prescription drug products but it is unclear whether, and to what extent, these orders will remain in force under the Biden administration, which, like the Trump administration, has indicated lowering prescription drug prices is a priority.  Although we do not know what steps the Biden administration will take with respect to drug pricing, we expect that additional U.S. federal healthcare reform measures could 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 additional pricing pressures and reduced demand for any of our products that receive marketing approval.

At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to control prescription drug pricing, including price and marketing cost disclosure and transparency measures, and, in some cases, authorizing importation of prescription drugs from other countries. In addition, regional health care 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 health care programs. These measures could reduce the ultimate demand for our products or put pressure on our product pricing. We expect that additional state healthcare reform measures will be adopted in the future, which could limit the amounts that state governments will pay for healthcare products and services and result in additional pricing pressures.

 In addition, in some foreign countries, the proposed pricing for a prescription drug must be approved before the drug may be lawfully marketed. The requirements governing drug pricing vary widely from country to country. For example, the United Kingdom and many European Union member states have robust health technology assessment processes to determine pricing and reimbursement for pharmaceuticals through their national health insurance system.   Many European Union members states also include either direct or indirect price referencing, or other price control mechanisms, in determining the price of a pharmaceutical in their market. There can be no assurance that any country that has price controls or reimbursement limitations for pharmaceutical drugs will allow favorable reimbursement and pricing arrangements for any of our products. Historically, drugs launched in the European Union do not follow price structures of the U.S. and generally tend to be significantly lower.

Other U.S. Healthcare Laws

We may also be subject to healthcare regulation and enforcement by the federal government and the states and foreign governments where we may market our product candidates, if approved. These laws include, without limitation: state and federal anti-kickback, fraud and abuse, false claims, privacy and security laws; laws governing interactions with healthcare professionals and related transparency requirements (such as the federal Sunshine Act and a range of state biopharmaceutical marketing and transparency laws); and requirements for manufacturers to report certain calculated product prices to the government or provide certain discounts or rebates to government authorities or private entities, often as a condition of reimbursement under government healthcare programs. The compliance and enforcement landscape is informed by government enforcement precedent and settlement history, Advisory Opinions, and Special Fraud Alerts. The risks we face and our approach to compliance may evolve over time in light of these types of developments. The potential safe harbors available for, example, relative to the Anti-Kickback Statute, are subject to change through legislative and regulatory action, and we may decide to adjust our business practices or be subject to heightened scrutiny as a result.  

The federal Anti-Kickback Statute prohibits, among other things, any person from knowingly and willfully offering, soliciting, receiving or paying remuneration, directly or indirectly, to induce either the referral of an individual, for an item or service or the purchasing or ordering of a good or service, for which payment may be made under federal healthcare programs such as the Medicare and Medicaid

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programs. The government has enforced the Anti-Kickback Statute to reach large settlements with healthcare companies based on research, consulting and other financial arrangements with physicians that the government alleged were not based on the provision of bona fide services and were intended as an inducement or reward. 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 government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal 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.

In addition, the civil False Claims Act prohibits, among other things, knowingly presenting or causing the presentation of a false, fictitious or fraudulent claim for payment to the U.S. government. Actions under the 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 False Claims Act can result in very significant monetary penalties and treble damages. The federal government is using the False Claims Act, and the accompanying threat of significant liability, in its investigation and prosecution of pharmaceutical and biotechnology companies throughout the U.S., for example, in connection with the promotion of products for unapproved uses and other sales and marketing practices. The government has obtained multi-million and multi-billion dollar settlements under the False Claims Act in addition to individual criminal convictions under applicable criminal statutes. Given the significant size of actual and potential settlements, it is expected that the government 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, also created new 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 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.

There has also been a recent trend of increased federal and state regulation of payments made to physicians and other healthcare providers. The Affordable Care Act, among other things, imposes new reporting requirements on drug manufacturers for payments made by them to physicians and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members. Failure to submit required information may result in civil monetary penalties of up to an aggregate of $150,000 per year (or up to an aggregate of $1 million per year for “knowing failures”), for all payments, transfers of value or ownership or investment interests that are not timely, accurately and completely reported in an annual submission. Drug manufacturers are required to submit annual reports to the Centers for Medicare & Medicaid Services, which publicly posts the data on its website. Effective January 1, 2022, these reporting obligations will extend to include transfers of value made to certain non-physician providers such as physician assistants and nurse practitioners. Certain states also mandate implementation of compliance programs, impose restrictions on drug manufacturer marketing practices and/or require the tracking and reporting of gifts, compensation and other remuneration to physicians.

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 and Clinical Health Act, or HITECH, and their respective implementing regulations, including the final omnibus rule published on January 25, 2013, imposes specified requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HITECH makes HIPAA’s privacy and 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, according to the U.S. Federal Trade Commission, or the FTC, failing to take appropriate steps to keep consumers' personal information secure constitutes unfair acts or practices in or affecting commerce in violation of Section 5(a) of the Federal Trade Commission Act. The FTC expects a company's data security measures to be reasonable and appropriate in light of the sensitivity and volume of consumer information it holds, the size and complexity of its business, and the cost of available tools to improve security and reduce vulnerabilities. Medical data is considered sensitive data that merits stronger safeguards. The FTC's guidance for appropriately securing consumers' personal information is similar to what is required under HIPAA.

In addition, we may be subject to state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers, and state laws governing

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the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways, thus complicating compliance efforts.  For example, the California Consumer Protection Act, or CCPA, which went into effect on January 1, 2020, establishes a new privacy framework for covered businesses by creating an expanded definition of personal information, establishing new data privacy rights for consumers in California, and creating a new and potentially severe statutory damages framework for violations of the CCPA and for businesses that fail to implement reasonable security procedures and practices to prevent data breaches.  The CCPA was recently amended by the California Privacy Rights Act (CPRA), expanding certain consumer rights such as the right to know. It remains unclear what, if any, additional modifications will be made to these laws by the California legislature or how these laws will be interpreted and enforced. The potential effects of the CCPA and CPRA are significant and may cause us to incur substantial costs and expenses to comply.

Rest of the World Healthcare Regulation

For other countries outside of the U.S. and the European Union, the requirements governing the conduct of clinical trials, drug licensing, sales and marketing, pricing and reimbursement vary from country to country. If we fail to comply with applicable foreign regulatory requirements, we may be subject to, among other things, fines, suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating restrictions and criminal prosecution.

European Union member states, the United Kingdom, Switzerland and other foreign jurisdictions have adopted data protection laws and regulations, which impose significant compliance obligations. In the European Union and the United Kingdom, the collection and use of personal data, including clinical trial data, is governed by the provisions of the General Data Protection Regulation, or GDPR. The GDPR, together with national legislation, regulations and guidelines of the European Union member states and the United Kingdom governing the processing of personal data, impose strict obligations and restrictions on the ability to collect, analyze and transfer personal data, including health data from clinical trials and adverse event reporting. In particular, these obligations and restrictions concern the consent of the individuals to whom the personal data relates, the information provided to the individuals, the transfer of personal data out of the European Union or the United Kingdom, security breach notifications, security and confidentiality of the personal data and imposition of substantial potential fines for breaches of the data protection obligations. Compliance with the GDPR is a rigorous and time-intensive process that may increase the cost of doing business to ensure full compliance.  Furthermore, European data protection authorities may interpret the GDPR and national laws differently and impose additional requirements, which add to the complexity of processing personal data in or from the European Union or United Kingdom.

Human Capital

As of March 1, 2018,February 18, 2021, we had 75 full and part-time272 full-time employees. None of our employees are represented by a collective bargaining agreement, and we have never experienced a work stoppage.

We considerbelieve that our relations withfuture success largely depends upon our continued ability to attract and retain a diverse workforce of highly skilled and dedicated employees. We provide our employees with competitive salaries and bonuses and opportunities for equity ownership.  In addition, we provide an inclusive and collaborative work environment with learning and development opportunities. We strive to be good.foster a culture of diversity in backgrounds and ideas as we believe that diversity, equity, and inclusion are paramount to our success. We understand that in order to perform at maximum capacity, our workforce needs to cultivate a welcoming and inclusive environment wherein employees feel they can represent themselves fully. We pride ourselves on being an equal opportunity employer and strictly prohibit unlawful discrimination based on color, religion, gender, sexual orientation, gender identity/expression, national origin/ancestry, age, disability, marital and veteran status.

We expect to continue to grow our organizational footprint in 2021 with a focus on expanding our commercialization team in preparation for the potential U.S. launches of U2 in CLL and ublituximab in MS. We will continue to evaluate the business needs and market opportunities, balancing in-house expertise and core competencies with outsourced capacity.  

Drug development and commercialization requires deep expertise across a broad array of disciplines. Pharmaceutical companies of all sizes compete for a limited number of qualified applicants to fill specialized positions. To attract qualified candidates, the Company offers an attractive total rewards package, consisting of base salary, cash bonus, a comprehensive benefit package, equity compensation, and 401(k) plan. Bonus opportunities and equity compensation increase as a percentage of total compensation based on level of responsibility, and actual bonus awards are based on performance.

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ITEM 1A. RISK FACTORS.

You should carefully consider the following risksrisk factors and uncertainties.the other information contained elsewhere in this Annual Report before making an investment in our securities. If any of the following occurs,risks occur, our business, financial condition or operating results could be materially harmed. An investment in our securities is speculative in nature, involves a high degree of risk, and should not be made by an investor who cannot bear the economic risk of its investment for an indefinite period of time and who cannot afford the loss of its entire investment. You should carefully considerThe risks described below are not the following risk factorsonly ones that our business faces. Additional risks not currently known to us or that we currently deem to be immaterial may adversely impact our business in the future. Additionally, many of these risks and uncertainties are currently elevated by and may or will continue to be elevated by the COVID-19 pandemic.

Risks Related to Commercialization

If UKONIQ, or any product candidate for which we in the future obtain regulatory approval, does not achieve broad market acceptance among physicians, patients, healthcare payors, and the medical community, the revenues that we generate from product sales will be limited.

We have one marketed product, UKONIQ (umbralisib), which received accelerated approval from the FDA on February 5, 2021 for the treatment of relapsed or refractory MZL in patients who have received at least one prior anti-CD20-based regimen and relapsed or refractory FL in patients who have received at least three prior lines of systemic therapy.  While we have initiated the commercial launch of UKONIQ in the U.S., we have limited experience as a commercial company and our ability to successfully overcome the risks associated with commercializing drugs in the biopharmaceutical industry, including the risk that our products do not achieve an adequate level of acceptance, remains uncertain.  UKONIQ as well as other drugs that we may bring to the market in the future may not gain market acceptance by physicians, patients, third-party payors and others in the healthcare community.  If our products do not achieve an adequate level of acceptance, we may not generate significant revenues, and we may not become profitable. The degree of market acceptance of UKONIQ, as well as any future product candidates for which we obtain approval, will depend on a number of factors, including:

the timing of our receipt of marketing approvals, the terms of such approvals, and the countries in which such approvals are obtained;
the efficacy, safety and tolerability as demonstrated in clinical trials and as compared to alternative treatments;
the timing of market introduction of any of our product candidates as well as competitive products;
the indications for which our products are approved, and other aspects of the approved labeling for such products;
acceptance by physicians, major operators of cancer or neurology clinics, and patients of our products as safe, tolerable and effective treatments;
the potential and perceived advantages or disadvantages of our products compared to alternative treatments;
our ability to offer our products for sale at competitive prices;
the availability of adequate reimbursement by third party payors and government authorities;
the extent of patient cost-sharing obligations, including copays and deductibles;
changes in regulatory requirements by government authorities for our products;
relative convenience and ease of administration;
the prevalence and severity of side effects and adverse events;
the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies;
the effectiveness of our sales and marketing efforts;
protecting our rights in our intellectual property portfolio;
our ability to maintain a reliable supply of our products that meets market demand; and
favorable or unfavorable publicity relating to our products or relating to the Company.

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Our ability to successfully launch and secure market acceptance of UKONIQ and our late-stage product candidate ublituximab, if approved, may be impacted by the evolving COVID-19 pandemic, although we are currently unable to predict or quantify any such potential impact with any degree of certainty.  As a result of the measures state and local governments have taken to date to control the spread of COVID-19, our office-based employees are working remotely and many of our commercialization efforts are happening virtually.  The success of our commercialization may be impacted by the increased reliance on work-from-home arrangements for our employees, consultants, vendors, and potential customers. If the spread of COVID-19 and the social distancing measures taken by various governments continue, any commercial launch we undertake, including the ongoing launch of UKONIQ, may be hindered by various factors, including challenges in hiring employees necessary to support expansion of our commercialization footprint; delays in demand due to impacts on the healthcare system and overall economy; delays in coverage decisions from Medicare and third-party payors; restrictions on our personal interactions with physicians, hospitals, payors, and other customers; interruptions or delays in our commercial supply chain; and increases in the number of uninsured or underinsured patients.  

If UKONIQ or any future products for which we receive regulatory approval do not achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, we may not generate sufficient revenue from these products and we may not become or remain profitable, which would have a material adverse effect on our business.

We may be subject to limitations on the indicated uses or requirements to fulfill certain post-marketing requirements to the satisfaction of regulatory authorities, or may be unable to maintain marketing approval for UKONIQ or future products that we may bring to market.

Regulatory approvals for any of our product candidates may be subject to limitations on the approved indicated uses for which the product may be marketed or contain requirements for potentially costly post-marketing testing, including Phase IV clinical trials, and surveillance to monitor the safety and efficacy of the approved product candidate. With respect to the FDA’s approval of UKONIQ for relapsed or refractory MZL and FL, we received accelerated approval and are subject to certain post-approval requirements.  For example, we will need to conduct a confirmatory clinical trial, which will involve a Phase 3 trial that may be expensive and time-consuming and may not confirm the benefit making the MZL and FL indications for UKONIQ subject to withdrawal of continued approval by the FDA, which could significantly harm our business. In addition, we will need to conduct additional clinical studies to address post-marketing commitments and post-marketing requirements related to further assessing the drug-drug interaction profile of UKONIQ and its safety, efficacy, and pharmacokinetic properties in certain at-risk populations.  These studies are highly specialized in their design and conduct and are associated with considerable expenses, and based on the outcome, could result in further labeling restrictions that could impair or restrict the way in which we are able to market UKONIQ, or negatively impact its overall clinical profile.  

In addition, with respect to UKONIQ, and any product candidate that the FDA or a comparable foreign regulatory authority approves, the manufacturing processes, labeling, packaging, distribution, import, export, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be subject to extensive and ongoing regulatory requirements. These requirements include submissions of safety and other post-marketing information contained elsewhereand reports, registration, as well as continued compliance with current Good Manufacturing Practices, or GMPs, with Good Clinical Practices, or GCPs, for any clinical trials that we conduct post-approval, and with Good Laboratory Practices, or GLPs, for any nonclinical studies. Later discovery of previously unknown problems with a product or with our third-party manufacturers or manufacturing processes, or failure to comply with regulatory requirements, may result in, this Annual Reportamong other things, restrictions on the marketing or manufacturing of the product, withdrawal of the product from the market, mandatory safety labeling changes or product recalls, suspension or revocation of product approvals, product seizure or detention, refusal to permit the import or export of products, and injunctions or the imposition of civil or criminal penalties, all of which would adversely affect our business, prospects and ability to achieve or sustain profitability.

UKONIQ, and any of product candidates for which we in the future obtain approval, may after approval be found to cause undesirable side effects that could result in significant negative consequences following commercialization.

As UKONIQ or any future approved products are used more widely or for a longer duration after being brought to market, data may emerge from clinical studies, including confirmatory or other post-marketing studies, or from adverse event reporting that may affect the commercial potential of our products.  For example, as additional patients are exposed for longer durations to UKONIQ in the commercial and clinical settings, it is unknown whether greater frequency and/or severity of adverse events are likely to occur or whether an acceptable safety and tolerability profile will continue to be demonstrated. If we or others identify unexpected side effects, caused by UKONIQ or our product candidates following introduction into the market, a number of potentially significant negative consequences could result, including:

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regulatory authorities may withdraw or limit the use (indication) of such products;
regulatory authorities may require the addition of labeling statements, including warnings or boxed warnings, precautions, or contraindications that could diminish the usage of the product or otherwise limit the commercial success of the affected product;
we may be required to change the way such drug candidates are distributed or administered, or to conduct additional clinical trials;
regulatory authorities may require a Risk Evaluation and Mitigation Strategy (REMS), a plan to mitigate risks, which could include a Medication Guide, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools;
we may be subject to regulatory investigations and government enforcement actions;
we may decide to remove such drug candidates from the marketplace;
we may not be able to enter into collaboration agreements on acceptable terms and execute on our business model;
we could be sued and held liable for injury caused to individuals exposed to or taking our products; and
our reputation may suffer.

Any one or a combination of these events could prevent us from maintaining regulatory approval and achieving or maintaining market acceptance of the affected product or could substantially increase the costs and expenses of commercializing the affected product, which in turn could significantly impact our ability to successfully commercialize our drug candidates and generate revenues.

The incidence and prevalence for target patient populations of UKONIQ and our product candidates have not been established with precision. If the market opportunities for UKONIQ and our product candidates are smaller than we estimate or if any approval that we obtain is based on a narrower definition of the patient population, our revenue and ability to achieve profitability will be adversely affected, possibly materially.

The precise incidence and/or prevalence of relapsed or refractory MZL after one prior anti-CD20-based regimen, relapsed or refractory FL after three prior lines of systemic therapy, CLL, and relapsing forms of MS are unknown. Our projections of both the number of patients within our FDA-approved indications for UKONIQ and target indications for ublituximab and UKONIQ (U2) in CLL and ublituximab in MS, as well as the subset of these patients who have the potential to benefit from treatment with our products, are based on estimates. These estimates are typically based on one on one and group interactions with target physicians and other sources available at the time we make the estimates, including the scientific literature, healthcare utilization databases and market research. Although we believe our estimates are reasonable, many factors may limit their accuracy.  For example, the sources we use to make the estimates may prove to be incorrect. Further, new studies may change the estimated incidence or prevalence of these diseases and the number of patients may turn out to be lower than expected.

The total addressable market opportunity for UKONIQ in MZL and FL, U2 in CLL, and ublituximab in MS will ultimately depend upon, among other things, the scope of the final approved indication and other elements of the approved prescribing information, acceptance by the medical community, patient access, and drug pricing and reimbursement. The number of patients in major markets, including the number of addressable patients in those markets, may turn out to be lower than expected, patients may not be otherwise amenable to treatment with our drugs, new patients may become increasingly difficult to identify or gain access to, or patients and physicians may choose to utilize competitive products, all of which would adversely affect our results of operations and our business.

We face substantial competition, which may result in others commercializing drugs before making anor more successfully than we do resulting in the reduction or elimination of our commercial opportunity.

We operate in a highly competitive segment of the biotechnology and biopharmaceutical market. We face competition from numerous sources, including commercial pharmaceutical and biotechnology enterprises, academic institutions, government agencies, and private and public research institutions. Many of our competitors have significantly greater financial, product development, manufacturing and commercialization resources. Large pharmaceutical companies have extensive experience in clinical testing and obtaining regulatory approval for drugs. Additionally, many universities and private and public research institutes are active in cancer research, some in direct competition with us. We may also compete with these organizations to recruit scientists and clinical development personnel. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies.

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Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize drugs that are more effective, have fewer or less severe side effects, are more convenient or are priced or contracted differently than any drugs that we or our collaborators may develop. Our competitors also may obtain FDA or other regulatory approval for their drugs more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we or our collaborators are able to enter the market. In a competitive environment, a company’s communications may also be subject to heightened scrutiny from regulators and competitors, under laws, regulations, and guidance about promotional communications (advertising and promotional labeling) and non-promotional communications (e.g., certain educational and scientific exchange); and with regard to potential competitor actions under federal law (the Lanham Act) and congruous state law, which protect businesses against the unfair competition of misleading advertising or labeling.

The key competitive factors affecting the success of all of our drug candidates, if approved, are likely to be their efficacy, safety, convenience, price, the level of generic competition and the availability of reimbursement from government and other third-party payors.

For the cancer indications for which we received FDA approval of UKONIQ or for which we are developing our product candidates there are a number of established therapies with which we will compete:

For the treatment of MZL, we expect UKONIQ to compete with ibrutinib (AbbVie and Janssen), and the combination of rituximab and lenalidomide (Bristol-Myers Squibb), as well as established treatments such as rituximab (Roche) and several generically available chemotherapies.   In addition, there are investigational PI3K inhibitors being developed in MZL.  
For the treatment of FL, we expect UKONIQ to compete with recently approved drugs such as obinutuzumab (Roche), idelalisib (Gilead), copanlisib (Bayer), duvelisib (Verastem), tazemetostat (Epizyme), and the combination of rituximab and lenalidomide (Bristol-Myers Squibb), and established treatments such as rituximab (Roche), and several generically available chemotherapies, many of which have FDA-approved indications for earlier lines of therapy (e.g., after two prior lines of systemic therapy) than UKONIQ. There are also several PI3K delta inhibitors in earlier stages of development for FL.
For the treatment of CLL, if U2 is approved, we expect the regimen to compete with recently approved drugs such as ibrutinib (AbbVie and Janssen), acalabrutinib (AstraZeneca), venetoclax (AbbVie and Roche), obinutuzumab (Roche), idelalisib (Gilead) and duvelisib (Verastem), and established treatments such as rituximab (Roche), and several generically available chemotherapies. Additionally, there are second generation BTK inhibitors similar to ibrutinib in late-stage clinical testing for CLL that could enter the market in the next 12-36 months. These agents can be used as monotherapy or in combination with one or more of the other agents.
In addition, a number of pharmaceutical companies are developing antibodies and bispecific antibodies targeting CD20, CD19, CD47 and other B-cell associated targets, chimeric antigen receptor T-cell (CAR-T) immunotherapy, and other B-cell ablative therapy which, if approved, would potentially compete with U2 and UKONIQ.

For Multiple Sclerosis for which we are developing ublituximab there are a number of established therapies with which we will compete:

If ublituximab is approved, we expect ublituximab will primarily compete against other CD20 targeted agents, while the group of CD20 targeted agents will also compete broadly against a number of already approved MS therapies. Currently, there are two anti-CD20 monoclonal antibodies approved, ocrelizumab (Roche) and ofatumumab (Novartis).

Cosibelimab, TG-1701 and TG-1801 if approved will also face competition from drugs on the market and under development in the same therapeutic class as each of those drugs.

New developments, including the development of other pharmaceutical technologies and methods of treating disease, occur in the pharmaceutical and life sciences industries at a rapid pace. These developments may render our product candidates obsolete or noncompetitive. Compared to us, many of our potential competitors have substantially greater:

research and development resources, including personnel and technology;
regulatory experience;
pharmaceutical development, clinical trial and pharmaceutical commercialization experience;
experience and expertise in exploitation of intellectual property rights; and
capital resources.

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We will also face competition from these third parties in recruiting and retaining qualified personnel, establishing clinical trial sites, patient registration for clinical trials, and in identifying and in-licensing new product candidates.

UKONIQ, as well as any products that we are able to commercialize in the future, may become subject to unfavorable pricing regulations or third-party coverage and reimbursement policies, which would harm our business.

The regulations that govern regulatory approvals, pricing and reimbursement for new drugs vary widely from country to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay our commercial launch of the drug candidate, possibly for lengthy time periods, and negatively impact the revenues we are able to generate from the sale of the drug candidate in that country. Adverse pricing limitations may hinder our ability to recoup our investment in one or more products, even if our securities.product candidates obtain marketing approval.  Eligibility for reimbursement does not imply that any drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. Interim reimbursement levels for new drugs, if applicable, may also not be sufficient to cover our costs and may not be made permanent. In addition, if we are successful in obtaining FDA approval for ublituximab for the treatment of CLL and MS, we will need to identify and execute a pricing strategy that takes into account the value of the product in each indication independently to realize the product’s full potential in both indications.  If we are unable to identify and execute such a strategy, the pricing of ublituximab across indications may not be optimal, which may have a material adverse impact on the sales in one or both of the indications and on our overall business.

Our ability to commercialize any product successfully also will depend in part on the extent to which coverage and reimbursement for our products and related treatments will be available from government authorities, private health insurers and other organizations. Government authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement and co-payment levels. A primary trend in the U.S. healthcare industry and elsewhere is cost containment. Government authorities and third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular drugs. Increasingly, third-party payors are requiring that drug companies provide them with predetermined discounts from list prices and are challenging the prices charged for drugs, examining the cost effectiveness of drugs in addition to their safety and efficacy.  Third-party commercial payors often rely upon Medicare coverage policy and payment limitations in setting their own reimbursement policies.  Payors may restrict coverage of some products by using formularies under which only selected drugs are covered, variable co-payments that make drugs that are not preferred by the payor more expensive for patients, and utilization management controls, such as requirements for prior authorization or failure first on another type of treatment.  Payors may target higher-priced drugs for imposition of these obstacles to coverage, and consequently our products may be subject to payer-driven restrictions. Additionally, in countries where patients have access to insurance, as in the U.S., insurance co-payment amounts or other benefit limits may represent a barrier to obtaining or continuing use of our products that receive regulatory approval. If we are unable to obtain or maintain coverage, or coverage is reduced in one or more countries, our product sales may be lower than anticipated and our financial condition could be harmed.

Net prices for drugs may be reduced by mandatory discounts or rebates required by government healthcare programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from countries where they may be sold at lower prices.  In the United States, for example, we must offer discounted pricing or rebates on purchases of pharmaceutical products under various federal and state healthcare programs, such as the Medicaid Drug Rebate Program, the 340B drug pricing program and the Medicare Part D Program. We must also report specific prices to government agencies under healthcare programs, such as the Medicaid Drug Rebate Program and Medicare Part B. The calculations necessary to determine the prices reported are complex and the failure to report prices accurately may expose us to penalties. 

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If, in the future, we are unable to establish a commercial operation, including sales and marketing capabilities or enter into agreements with third parties to sell and market our drug candidates, we may not be successful in commercializing our product candidates if and when they are approved, and we may not be able to generate any revenue.

In preparation for the FDA approval and commercial introduction of UKONIQ, we made and continue to make significant investments to build a commercial organization and infrastructure. We have hired and continue to hire marketing, sales, and medical support personnel and have built processes and systems to support a commercial launch of UKONIQ in the U.S. We are expanding the build out of our commercialization team and infrastructure in planning for the potential commercial launches of U2 in CLL and ublituximab in MS prior to knowing whether we can complete the necessary regulatory submissions and, if so, whether FDA will approve such submissions.  It is possible that the FDA approval is unexpectedly delayed or is not received at all. In either case we will incur delays that may impede or significantly delay our ability to generate revenue and at the same time will incur significant expenses. If this were to occur, it would have a material adverse effect on the Company.

There are risks involved with both establishing our own sales, marketing, and other commercialization capabilities. For example, recruiting and training a sales force are expensive and time-consuming and could delay any drug launch. If the commercial launch of a product candidate (e.g., U2 in CLL or ublituximab in MS) for which we recruit a sales force and establish marketing capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel.

Factors that may inhibit our efforts to commercialize UKONIQ and our product candidates on our own and generate product revenues include:

our inability to recruit and retain adequate numbers of effective sales and marketing personnel;
the costs and time associated with the initial and ongoing training of sales and marketing personnel on legal and regulatory compliance matters and with ongoing monitoring of their activities;
the inability of sales personnel to obtain access to physicians or to effectively promote any future drugs;
the lack of complementary drugs to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with more extensive product lines;
our ability to maintain a healthcare compliance program including effective mechanisms for compliance monitoring; and
unforeseen costs and expenses associated with creating a sales and marketing organization.

In the future, we may choose to participate in sales activities with collaborators for some of our product candidates if and when they are approved.  However, there are also risks with entering into these types of arrangements with third parties to perform sales, marketing and distribution services.  For example, we may not be able to enter into such arrangements on terms that are favorable to us.  Our drug revenues or the profitability of these drug revenues to us are likely to be lower than if we were to market and sell any product candidates that we develop ourselves. In addition, we likely will have little control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and market our product candidates effectively. If we do not establish sales and marketing capabilities successfully, either on our own or in collaboration with third parties, we will not be successful in commercializing our drug candidates. Further, our business, results of operations, financial condition and prospects will be materially adversely affected.

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Product liability lawsuits against us could cause us to incur substantial liabilities and could limit commercialization of any drug candidates that we may develop.

We face an inherent risk of product liability exposure related to the testing of our product candidates in human clinical trials and use of our product candidates through compassionate use programs in the event we establish such programs, and we will face an even greater risk as we commercially sell UKONIQ and any other product candidates that we may develop. If we cannot successfully defend ourselves against claims that UKONIQ or our product candidates caused injuries, we could incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

decreased demand for any products that we may commercialize;
injury to our reputation and significant negative media attention;
withdrawal of clinical trial participants;
significant costs to defend the related litigation;
substantial monetary awards to trial participants or patients;
loss of revenue; and
the inability to commercialize any product candidates that we may develop.

Although we maintain product liability insurance coverage, it may not be adequate to cover all liabilities that we may incur. Insurance coverage is increasingly expensive. We may not be able to maintain insurance coverage at a reasonable cost or in an amount adequate to satisfy any liability that may arise.

Risks Related to Our BusinessFinancial Position and IndustryNeed for Additional Capital

We have incurred significant operating losses since our inception and anticipate that we will incur continued losses for the foreseeable future.

Biopharmaceutical drug development is a highly speculative undertaking and involves a substantial degree of risk. We commenced operations in January 2012. Our operations to date have been limited primarily to organizing and staffing our company, business planning, raising capital, developing our technology, identifying potential drug candidates, undertaking pre-clinical studies and clinical trials, and preparing for commercialization of only marketed product UKONIQ, which received FDA approval in February 2021. We are transitioning from a company with a research and development focus to a company capable of supporting commercial activities. We may not be successful in such a transition.  

Since inception, we have focused our efforts and financial resources on clinical trials, manufacturing of our drug candidates, and preparing to support a commercial product. To date, we have financed our operations primarily through public offerings of our common stock and a debt financing. Through February 18, 2021, we have received an aggregate of approximately $1.3 billion from such transactions. Approximately $30 million is from our term loan facility with Hercules (as defined below) that we secured in February of 2019. The remaining amount constitutes the aggregate gross proceeds from the sale of common stock in one or more offerings and through the use of our at the market sales program, or ATM. 

Since inception, we have incurred significant operating losses. As of December 31, 2020, we had an accumulated deficit of $980.6 million. Substantially all of our operating losses have resulted from costs incurred in connection with our research and development programs and from general and administrative costs associated with our operations. We expect to continue to incur significant expenses and operating losses for the foreseeable future.  Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders’ deficit and working capital.  Other than the FDA approval of UKONIQ, we have not obtained marketing approval for any of our product candidates, which are in preclinical or clinical development stages.  We expect to continue to incur significant research and development expenses in connection with continuing our existing clinical trials and beginning additional clinical trials. In addition, we expect to continue to incur significant sales, marketing and outsourced-manufacturing expenses as we commercialize UKONIQ and plan for the possible commercialization of our other product candidates, if approved. As a result, we expect to continue to incur significant and increasing operating losses for the foreseeable future. Because of the numerous risks and uncertainties associated with developing pharmaceuticals, we are unable to predict the extent of any future losses or when we will become profitable, if at all. Even if we do become profitable, we may not be able to sustain or increase our profitability on a quarterly or annual basis. Our ability to become profitable depends upon our ability to generate revenue.

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To date, we have not generated any significant revenue from our product sales, and it is uncertain when and if we will generate any significant revenue from the sale of our products in the future. Our ability to become profitable depends upon our ability to generate significant and sustained revenues. To obtain significant and sustained revenues, we must succeed, either alone or with others, in (i) developing and obtaining regulatory approval for our product candidates, including ublituximab, and for additional indications of UKONIQ; and (ii) manufacturing and marketing our products and product candidates. Accordingly, we do not expect to generate significant and sustained revenue unless and until we obtain marketing approval of ublituximab and additional indications of UKONIQ and/or one of our other product candidates. Our ability to generate significant and sustained revenue depends on a number of factors, including, but not limited to, our ability to:

successfully complete clinical trials that meet their clinical endpoints;
initiate and successfully complete all safety, pharmacokinetic, biodistribution, and non-clinical studies required to obtain U.S. and foreign marketing approval for our product candidates;
obtain approval from the FDA and foreign equivalents to market and sell our product candidates and maintain FDA approval of UKONIQ for relapsed or refractory MZL and FL;
establish commercial manufacturing capabilities with third parties that are satisfactory to the regulatory authorities, cost effective, and that are capable of providing commercial supply of our product candidates, or, in the case of UKONIQ, maintain these capabilities;
expand on our commercial infrastructure to commercialize ublituximab, our other product candidates, and additional indications of UKONIQ, if approved, by increasing the size of our sales force and/or entering into collaborations with third parties; and
achieve market acceptance of UKONIQ and our product candidates, if approved, in the medical community and with third-party payors.

If we are unable to generate significant and sustained revenues, we will not become profitable and we will be unable to continue our operations without continued funding.

We will need to raise substantial additional funding. If we are unable to raise capital when needed, we would be forced to delay, reduce or eliminate some of our drug development programs or commercialization efforts.

The development of pharmaceuticals is capital-intensive. We are currently advancing our most advanced drug candidates, ublituximab, cosibelimab, TG-1701 and TG-1801, and UKONIQ for additional indications through clinical development. While we may experience short-term decreases in clinical trial expenses as our larger Phase 3 clinical trials complete and before our Phase 1 and 2 programs can advance into Phase 2 and 3, we do expect over time our overall expenses will increase in connection with our ongoing activities, particularly as we continue the research and development of, initiate or continue clinical trials of, seek marketing approval for, and expand our infrastructure to commercialize our product candidates and additional indications of UKONIQ. Moreover, in anticipation of submitting applications for regulatory approvals for UKONIQ and ublituximab in chronic lymphocytic leukemia (CLL) and for ublituximab in relapsing multiple sclerosis (MS), we will need to expend substantial resources on manufacturing and biologics license application (BLA) preparation over the next 12 to 18 months, which could exceed any cost savings associated with lower clinical trial expenses during the same period.

While this timing is our current estimate, the amount and timing of our future funding requirements will depend on many factors, including, but not limited to, the following:

the progress of our clinical trials, including expenses to support the trials and milestone payments that may become payable under our license agreements;
developments relating to the COVID-19 pandemic in the U.S. and around the world;
the costs and timing of regulatory approvals;
the costs and timing of clinical and commercial manufacturing supply arrangements for each product and product candidate;
the costs of expanding our sales or distribution capabilities;
the success of the commercialization of UKONIQ and any product candidates, if approved;
our ability to establish and maintain strategic collaborations, including licensing and other arrangements;
the costs involved in enforcing or defending patent claims or other intellectual property rights; and
the extent to which we in-license or invest in other indications or product candidates.

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As a result, significant additional funding will be required. Additional sources of financing to continue our operations in the future might not be available on favorable terms, if at all. If we do not succeed in raising additional funds on acceptable terms, we might be unable to complete planned preclinical studies and clinical trials or obtain approval of any of our product candidates from the FDA or any foreign regulatory authorities. In addition, we could be forced to discontinue product development, reduce or forego sales, marketing and medical educational efforts that are required for a successful launch of UKONIQ, ublituximab (if approved), or any of our other product candidates and otherwise forego attractive business opportunities. Any additional sources of financing will likely involve the issuance of our equity securities, which would have a dilutive effect to stockholders. Currently, other than UKONIQ, our products are investigational and have not been approved by the FDA or any foreign regulatory authority for sale. Therefore, for the foreseeable future, we will have to fund all of our operations and capital expenditures from sales of UKONIQ in the U.S., cash on hand and amounts raised in future offerings or financings. Accordingly, our prospects must be considered in light of the uncertainties, risks, expenses and difficulties frequently encountered by companies in the early stages of operations and the competitive environment in which we operate.

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or drug candidates and occupy valuable management time and resources.

Until such time, if ever, as we can generate substantial drug revenues, we expect to finance our cash needs through a combination of public and private equity offerings, debt financings, collaborations, strategic alliances and licensing arrangements. We do not have any committed external source of funds, other than funds already borrowed under the loan and security agreement that we entered into with Hercules in February 2019 (see Note 7 to our consolidated financial statements for more information). To the extent that we raise additional capital through the sale of common stock or securities convertible or exchangeable into common stock, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that materially adversely affect the rights of our common stockholders. We may also seek funds through collaborations, strategic alliances or licensing arrangements with third parties at a time that is not desirable to us and we may be required to relinquish valuable rights to some intellectual property, future revenue streams, research programs or drug candidates or to grant licenses on terms that may not be favorable to us, any of which may have a material adverse effect on our business, operating results and prospects. Debt 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. See our risk factors below under the heading “Risks Related to Our Indebtedness”.

Additionally, fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and commercialize our drug candidates. Dislocations in the financial markets have generally made equity and debt financing more difficult to obtain and may have a material adverse effect on our ability to meet our fundraising needs. We cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the issuance of additional securities, whether equity or debt, by us, or the possibility of such issuance, may cause the market price of our shares to decline.

All commercialization and product candidate development timelines and projections in this report are based on the assumption of further financing.

The timelines and projections in this report are predicated upon the assumption that we will raise additional financing in the future to continue our commercialization efforts and the development of our product candidates. In the event we do not successfully raise subsequent financing, our commercialization and product development activities will necessarily be curtailed commensurate with the magnitude of the shortfall. If our commercialization or product development activities are slowed or stopped, we would be unable to meet the timelines and projections outlined in this filing. Failure to progress our commercialization activities or the development of our product candidates as anticipated will have a negative effect on our business, future prospects, and ability to obtain further financing on acceptable terms, if at all, and the value of the enterprise.

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Due to limited resources we may fail to capitalize on programs or product candidates that may present a greater commercial opportunity or for which there is a greater likelihood of success.

Because we have limited resources, we may forego or delay pursuit of opportunities with certain programs or product candidates or for indications that later prove to have greater commercial potential. Our estimates regarding the potential market for a product candidate could be inaccurate, and our spending on current and future research and development programs may not yield any commercially viable products. If we do not accurately evaluate the commercial potential for a particular product candidate, we may relinquish valuable rights to that product candidate through strategic collaboration, licensing or other arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate. Alternatively, we may allocate internal resources to a product candidate in a therapeutic area in which it would have been more advantageous to enter into a partnering arrangement.

If any of these events occur, we may be forced to abandon or delay our development efforts with respect to a particular product candidate or fail to develop a potentially successful product candidate, which could have a material adverse effect on our business, financial condition, results of operations and prospects.

Our level of indebtedness and debt service obligations could adversely affect our financial condition and may make it more difficult for us to fund our operations.

In February 2019, we entered into a Loan and Security Agreement (the “Loan Agreement”), with Hercules Capital, Inc., a Maryland corporation (“Hercules”) (see Note 7 to our consolidated financial statements for more information). Under the Loan Agreement, Hercules will provide access to term loans with an aggregate principal amount of up to $60.0 million (the “Term Loan”). Concurrently with the closing of the Loan Agreement, we borrowed an initial tranche of $30.0 million. As of December 31, 2020, we had outstanding obligations of $30 million under the Loan Agreement. In addition, we have incurred short-term liabilities of approximately $19.4 million with a contract manufacturing organization (CMO) for the scale-up, tech-transfer, and long-term supply of one of our drug candidates. This is an expensive and lengthy process and we expect to incur additional obligations associated with these ongoing manufacturing activities over the course of the next 24 months, and potentially longer. To date, this CMO has provided payment terms which we believe are reasonable; however, no assurance can be given that such terms will continue to be available to us in the future. No assurances can be made that the obligations associated with the Loan Agreement and the CMO will not have a material adverse impact on our financial condition.

All obligations under the Loan Agreement are secured by substantially all of our existing property and assets, excluding intellectual property. This indebtedness may create additional financing risk for us, particularly if our business or prevailing financial market conditions are not conducive to paying off or refinancing its outstanding debt obligations at maturity. This indebtedness could also have important negative consequences, including:

we will need to repay the indebtedness by making payments of interest and principal, which will reduce the amount of money available to finance our operations, our research and development efforts and other general corporate activities; and
our failure to comply with the restrictive covenants in the Loan Agreement could result in an event of default that, if not cured or waived, would accelerate our obligation to repay this indebtedness, and Hercules could seek to enforce its security interest in the assets securing such indebtedness.

To the extent additional debt is added to our current debt levels, the risks described above could increase.

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We may not have cash available in an amount sufficient to enable us to make interest or principal payments on our indebtedness when due. 

Failure to satisfy our current and future debt obligations under the Loan Agreement, or the breach of any of its covenants, subject to specified cure periods with respect to certain breaches, could result in an event of default and, as a result, Hercules could accelerate all of the amounts due. In the event of an acceleration of amounts due under the Loan Agreement as a result of an event of default, we may not have enough available cash or be able to raise additional funds through equity or debt financings to repay such indebtedness at the time of such acceleration. In that case, we may be required to delay, limit, reduce or terminate our product candidate development or commercialization efforts or grant to others rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. Hercules could also exercise its rights as collateral agent to take possession and dispose of the collateral securing the Term Loan for its benefit, which collateral includes substantially all of our property other than intellectual property. Our business, financial condition and results of operations could be materially adversely affected as a result of any of these events.

The Loan Agreement imposes operating and other restrictions on the Company. Such restrictions will affect, and in many respects limit or prohibit, our ability and the ability of any future subsidiary to, among other things: 

dispose of certain assets;
change its lines of business;
engage in mergers, acquisitions or consolidations;
incur additional indebtedness;
create liens on assets;
pay dividends and make contributions or repurchase our capital stock; and
engage in certain transactions with affiliates.

The breach of any of these restrictive covenants could have a material adverse effect on our business and prospects.

Risks Related to Drug Development and Regulatory Approval

If we are unable to obtain regulatory approval for our product candidates and ultimately cannot commercialize one or more of them, or experience significant delays in doing so, our business will be materially harmed.

We have invested substantially all of our efforts and financial resources in the identification and pre-clinical and clinical development of UKONIQ and our product candidates, including ublituximab, cosibelimab, TG-1701 and TG-1801, and building a commercial infrastructure. Our ability to generate revenues from product sales will depend completely on the successful completion of our current and future Phase 3 and registration-directed clinical trials and commercialization of our product candidates and additional indications of UKONIQ, which may never occur.  Each of our product candidates will require additional non-clinical or clinical development, regulatory approval in multiple jurisdictions, and obtaining sufficient clinical and commercial supply.  The success of our development programs and achievement of regulatory approval of our product candidates will depend on several factors, including the following:

successful completion of our clinical programs with positive results that support a finding of effectiveness and an acceptable safety profile of our product candidates in the intended populations within the timeframes we have projected;
INDs or clinical trial applications, or CTAs, being cleared such that our product candidates can commence clinical trials;
successful initiation and completion of preclinical studies and successful initiation of, enrollment in and completion of clinical trials;
successful preparation of the Biologics License Application (BLA) and the complete data sets from the UNITY-CLL trial and ULTIMATE I and II trials for regulatory submission within the timeframes we have projected;
sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials;
receipt of regulatory approvals from applicable regulatory authorities for our product candidates;
establishing commercially viable arrangements with third-party manufacturers for clinical supply and commercial manufacturing; and
obtaining and maintaining patent and trade secret protection or regulatory exclusivity for our product candidates.

If we do not achieve one or more of these factors in a timely manner or at all, we could experience significant delays in our clinical programs and regulatory submission timelines and may not be able to obtain regulatory approval for our product candidates.

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Because results of preclinical studies and early clinical trials are not necessarily predictive of future results, any product candidate we advance may not have favorable results in later clinical trials or receive regulatory approval.  Moreover, interim, “top-line,” and preliminary data from our clinical trials that we announce or publish may change, or the perceived product profile may be negatively impacted, as more patient data or additional endpoints (including efficacy and safety) are analyzed.

Pharmaceutical development has inherent risks. The outcome of preclinical development testing and early clinical trials may not be predictive of the outcome of later clinical trials, and interim results of a clinical trial do not necessarily predict final results. Moreover, preclinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that have believed their product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their product candidates. Once a product candidate has displayed sufficient preclinical data to warrant clinical investigation, we will be required to demonstrate through adequate and well-controlled clinical trials that our product candidates are effective with a favorable benefit-risk profile for use in populations for their target indications before we can seek regulatory approvals for their commercial sale. Many drug candidates fail in the early stages of clinical development for safety and tolerability issues or for insufficient clinical activity, despite promising pre-clinical results. Accordingly, no assurance can be made that a safe and efficacious dose can be found for these compounds or that they will ever enter into advanced clinical trials alone or in combination with other product candidates.  Moreover, success in early clinical trials does not mean that later clinical trials will be successful because product candidates in later-stage clinical trials may fail to demonstrate sufficient safety or efficacy despite having progressed through initial clinical testing. Companies frequently experience significant setbacks in advanced clinical trials, even after earlier clinical trials have shown promising results. There is an extremely high rate of failure of pharmaceutical candidates proceeding through clinical trials.

Individually reported outcomes of patients treated in clinical trials may not be representative of the entire population of treated patients in such studies. In addition, larger scale Phase 3 studies, which are often conducted internationally, are inherently subject to increased operational risks compared to earlier stage studies, including the risk that the results could vary on a region to region or country to country basis, which could materially adversely affect the outcome of the study or the opinion of the validity of the study results by applicable regulatory agencies.

From time to time, we may publicly disclose top-line or preliminary data from our clinical 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 such data, and we may not have received or had the opportunity to fully and carefully evaluate all data from the particular study or trial, including all endpoints and safety data. As a result, 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 topline, interim, or preliminary data we previously published. When providing top-line results, we may disclose the primary endpoint of a study before all secondary endpoints have been fully analyzed.  A positive primary endpoint does not translate to all, or any, secondary endpoints being met. As a result, top-line and preliminary data should be viewed with caution until the final data are available, including data from the full safety analysis and the final analysis of all endpoints.  

Further, 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. For example, time-to-event based endpoints such as duration of response (DOR) and PFS have the potential to change, sometimes drastically, with longer follow-up. In addition, as patients continue on therapy, there can be no assurance given that the final safety data from studies, once fully analyzed, will be consistent with prior safety data presented, will be differentiated from other similar agents in the same class, will support continued development, or will be favorable enough to support regulatory approvals for the indications studied.  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.  The information we choose to publicly disclose regarding a particular study or clinical trial is based on what is typically extensive information, and regulators 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 final results, or if others, including regulatory authorities, disagree with the conclusions reached, our ability to obtain approval for, or successfully commercialize, our product candidates may be harmed, which could harm our business, operating results, prospects or financial condition.

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Many of the results reported in our early clinical trials rely on local investigator-assessed efficacy outcomes which may be subject to greater variability or subjectivity than results assessed in a blinded, independent, centrally reviewed manner, often required of later phase, adequate and well-controlled registration-directed clinical trials. If the results from our registration-directed trials are different from the results found in the earlier studies, we may need to terminate or revise our clinical development plan, which could extend the time for conducting our development program and could have a material adverse effect on our business.

Clinical drug development involves a lengthy and expensive process, with an uncertain outcome. We may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and commercialization of our product candidates.

Before obtaining marketing approval from regulatory authorities for the sale of any product candidate, we must complete pre-clinical studies and then conduct extensive clinical trials to demonstrate the safety and efficacy of our product candidates in humans. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is uncertain as to outcome. It is impossible to predict when or if our product candidates will prove effective and safe in humans or will receive regulatory approval or will have a differentiated safety and tolerability profile. A failure of one or more clinical trials can occur at any stage of testing.  Accordingly, our ongoing trials and future clinical trials may not be successful.  Even if our clinical trials produce positive results, there can be no guarantee that the positive outcomes will be replicated in future studies either within the same indication as previously evaluated or in alternate indications and settings.

Successful completion of our clinical trials is a prerequisite to submitting a New Drug Application (NDA) or a Biologics License Application (BLA) to the FDA and a Marketing Authorization Application (MAA) to the European Medicines Agency (EMA) for each product candidate and, consequently, the ultimate approval and commercial marketing of our product candidates. We do not know whether any of our ongoing or future clinical trials for our product candidates will be completed on schedule, if at all.

Whether or not and how quickly we complete clinical trials depends in part upon the rate at which we are able to engage clinical research/trial sites and, thereafter, the rate of enrollment of patients, and the rate at which we collect, clean, lock and analyze the clinical trial database. Patient enrollment is a function of many factors, including the size of the patient population, the proximity of patients to clinical sites, the eligibility criteria for the study, the existence of competitive clinical trials, and whether existing or new drugs are approved for the indication we are studying. We are aware that other companies are currently conducting or planning clinical trials that seek to enroll patients with the same diseases that we are studying. We may experience numerous unforeseen events, such as the COVID-19 pandemic, that could delay or prevent our ability to complete current clinical trials, initiate new trials, receive marketing approval or commercialize our product candidates, including:

the FDA or other regulatory authorities may require us to submit additional data or impose other requirements before permitting us to initiate a clinical trial;
the FDA or other regulatory authorities or institutional review boards (IRBs) or ethics committees (ECs) may not authorize us or our investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site or in a country; we may experience delays in reaching, or fail to reach, agreement on acceptable terms with prospective trial sites and prospective CROs, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
clinical trials of our drug candidates may produce negative or inconclusive results, and we may decide, or regulatory authorities may require us, to conduct additional pre-clinical studies or clinical trials or we may decide to abandon drug development programs;
the number of patients required for clinical trials of our drug candidates may be larger than we anticipate, and enrollment in these clinical trials may be slower than we anticipate or participants may drop out of these clinical trials or fail to return for post-treatment follow-up at a higher rate than we anticipate;
our third-party contractors, including our clinical trial sites, may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or at all, or may deviate from the clinical trial protocol or drop out of the trial, which may require that we add new clinical trial sites or investigators;
we may elect to or regulatory authorities or IRBs or ECs may require that we or our investigators suspend or terminate clinical research for various reasons, including noncompliance with regulatory requirements or a finding that the participants are being exposed to unacceptable health risks;
the cost of clinical trials of our product candidates may be greater than we anticipate;

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the supply or quality of our product candidates or other materials necessary to conduct clinical trials of our product candidates may be insufficient or inadequate, including, without limitation, as a result of disruptions to our supply chains caused by the COVID-19 pandemic and related work stoppages across the globe;
regulatory authorities may revise the requirements for approving our product candidates, or such requirements may not be as we anticipate; and
our product candidates may have undesirable side effects or other unexpected characteristics, causing us or our investigators, regulatory authorities, IRBs or ECs to suspend or terminate the trials, or reports may arise from pre-clinical or clinical testing of other therapies in the same or a similar class that raise safety or efficacy concerns about our product candidates.

We also 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 DSMB for such trial or by the FDA or other regulatory authorities. Such regulatory authorities may impose 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, changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial. The DSMB for our clinical trials may recommend modification to the study design or closure of the study entirely based on the DSMB’s interpretation of the benefit/risk of the study.  While we develop charters that guide the nature of the DSMB meetings, their analysis and interpretation of study data occurs independently from us and is wholly within their control.  Even if the DSMB finds no safety concerns and recommends no modifications to the ongoing study, this does not mean the safety profile reported in the study may support a marketing approval or commercial acceptance if marketing approval is granted. 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 our product candidates.

Further, the FDA or other regulatory authorities may disagree with or not accept our clinical trial design, may have questions about the potential impact of our study design on conclusions that can be drawn from the data, may interpret results differently than we do, and may change its view on the criteria that must be met for approval over time. This could happen even for a protocol that has received a SPA, as is the case for some of our studies. In September 2015, we announced a Phase 3 clinical trial for U2 for patients with CLL, which is being conducted pursuant to a SPA with the FDA (UNITY-CLL) and in August 2017 we announced SPAs for the ULTIMATE I and II studies evaluating ublituximab in RMS. Many companies that have been granted SPAs have ultimately failed to obtain final approval to market their drugs. Since we are seeking approvals under SPAs for some of our product registration strategies, based on protocol designs negotiated with the FDA, we may be subject to enhanced scrutiny. Further, while changes or amendments to protocols are common during conduct of a clinical trial, protocol changes or amendments to a study that is being conducted under a SPA will have to be reviewed and approved by the FDA to verify that the SPA agreement is still valid. The FDA’s willingness to agree to changes or amendments to a protocol or statistical analysis plan under a SPA agreement is wholly within the FDA’s discretion.  Such reviews also provide an opportunity for the FDA to scrutinize any aspect of the study design and conduct, even if previously agreed to under the existing SPA.  Failure to reach agreement with the FDA for protocol changes or modifications for any study we conduct under a SPA could have a material negative impact to our ability to execute these studies. Even if the primary endpoint in a Phase 3 clinical trial is achieved, a SPA does not guarantee approval.

Some of our clinical trials may be conducted as open-label studies, meaning that trial participants, investigators, site staff, some employees of our contract research organizations, and our field-level employees (e.g., clinical research associates and monitors), among others, have knowledge of treatment arm assignments on a patient-level, which has the potential to introduce bias into study conduct. Further, even when our clinical trials are double-blind, double-dummy studies, unblinding of treatment arm assignment may occur from time to time, for example, on the occurrence of unexpected safety events which may necessitate understanding of study treatment.  While we believe we have put in place adequate firewalls to prevent inappropriate unblinding of study data consistent with standard industry practice for these types of studies, no assurance can be given that issues related to study conduct will not be raised. The FDA may raise issues of safety, study conduct, bias, deviation from the protocol, statistical power, patient completion rates, changes in scientific or medical parameters or internal inconsistencies in the study design or data prior to making its final decision. The FDA may also seek the guidance of an outside advisory committee in evaluating (among other things) clinical data and safety and effectiveness considerations prior to making its final decision.

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Negative or inconclusive results from the clinical trials we conduct or unanticipated adverse medical events could cause us to have to repeat or terminate the clinical trials. If we are required to repeat or conduct additional clinical trials or other testing of our drug candidates beyond those that we currently contemplate, if we are unable to successfully complete clinical trials of our drug candidates or other testing, if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we may:

be delayed in obtaining marketing approval for our product candidates;
not obtain marketing approval at all;
obtain marketing approval in some countries and not others;
obtain approval for indications or patient populations that are not as broad as intended or desired;
be subject to post-marketing requirements or post-marketing commitments;
be subject to increased pricing pressure; or
have the drug removed from the market after obtaining marketing approval.

Our drug development costs will also increase if we experience delays in testing or regulatory approvals. Certain clinical trials are designed to continue until a pre-determined number of events have occurred in the patients enrolled. Trials such as this are subject to delays stemming from patient withdrawal and from lower than expected event rates. Significant clinical trial delays could also shorten any periods during which we may have the exclusive right to commercialize our product candidates or allow our competitors to bring products to market before we do and impair our ability to successfully commercialize our product candidates. Any delays in our pre-clinical or future clinical development programs may harm our business, financial condition and prospects significantly. We may also incur additional costs if enrollment is increased.   All of our current Phase 3 and registration-directed clinical trials, such as UNITY-CLL, UNITY-NHL and ULTIMATE I and II, enrolled a larger number of patients than our initial projections, adding significant costs to those studies over and above what had been projected.

In addition, 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. If these relationships and any related compensation result in perceived or actual conflicts of interest, the integrity of the data generated at the applicable clinical trial site, or the FDA’s willingness to accept such data, may be jeopardized.

Our product candidates may cause undesirable side effects that could delay or prevent their regulatory approval, or impact their availability and commercial potential after approval.

Unacceptable or undesirable adverse events caused by any of our product candidates that we take into clinical trials could cause either us, a DSMB, or regulatory authorities to interrupt, delay, modify or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other regulatory authorities. This, in turn, could prevent us from commercializing the affected product candidate and generating revenues from its sale.

As is the case with all drugs, it is likely that there will be side effects associated with the use of our drug candidates. Results of our trials could reveal a higher than expected and unacceptable severity and prevalence of side effects. In such an event, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us to cease further development of or deny approval of our drug candidates for any or all targeted indications. The drug-related side effects could also affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. In addition, data may emerge, from confirmatory or other post-marketing studies, or from pharmacovigilance reporting, as products are used more widely, or for a longer duration, after approval that may affect the commercial potential of our products.  Any of these occurrences may harm our business, financial condition and prospects significantly.

Many compounds that initially showed promise in early stage testing have later been found to cause side effects that prevented further development of the compound. Further, early clinical trials by their nature utilize a small sample of the potential patient population. With a limited number of patients and limited duration of exposure, rare and severe side effects of our drug candidates may only be uncovered when a significantly larger number of patients are exposed to the drug candidate in Phase 3 or registration-directed trials or when the drug candidate is on the market.  If any of our product candidates cause unacceptable adverse events in clinical trials, we may not be able to obtain marketing approval and generate revenues from its sale, or even if approved for sale may lack differentiation from competitive products, which could have a material adverse impact on our business and operations.

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Many of our ongoing and planned clinical studies involve combinations of two or more drugs. In drug-combination clinical development, there is an inherent risk of drug-drug interactions between combination agents that may affect each component’s individual pharmacologic properties and the overall efficacy and safety of the combination regimen. Both ublituximab and UKONIQ are being evaluated in combination with each other, as well as with a variety of other active anti-cancer agents, which may cause unforeseen toxicity, or impact the severity, duration, and incidence of adverse events observed compared to those seen in the single-agent studies of these agents. We also intend to explore multiple combination studies involving cosibelimab, TG-1701, and TG-1801. Further, with multi-drug combinations, it is often difficult to interpret or properly assign attribution of an adverse event to any one particular agent, introducing the risk that toxicity caused by a component of a combination regimen could have a material adverse impact on the development of our product candidates. There can be no assurances given that the combination regimens being studied will display tolerability or efficacy suitable to warrant further testing or produce data that is sufficient to obtain marketing approval.

Any product candidates we may advance through clinical development are subject to extensive regulation, which can be costly and time consuming, cause unanticipated delays or prevent the receipt of the required approvals.

The clinical development, manufacturing, labeling, packaging, storage, record-keeping, advertising, promotion, import, export, marketing and distribution, and pharmacovigilance and adverse event reporting of our product candidates or any future product candidates are subject to extensive regulation by the FDA in the United States and by comparable regulatory authorities worldwide. In the United States, we are not permitted to market a product candidate until we receive approval of a BLA or NDA from the FDA. The process of obtaining a BLA or NDA approval is expensive, often takes many years, and can vary substantially based upon the type, complexity and novelty of the products involved. Approval policies or regulations may change, and the FDA has substantial discretion in the pharmaceutical product approval process, including the ability to delay, limit or deny approval of a product candidate for many reasons. In addition, the FDA may require post-marketing studies, including drug interaction studies or clinical trials which also may be costly. For example, as part of the accelerated approval of UKONIQ for relapsed or refractory MZL and FL, continued approval for those indications is contingent upon verification and description of clinical benefit in a confirmatory trial.  The FDA approval for a limited indication with required warning language, such as a boxed warning, could significantly impact our ability to successfully market our product candidates. Finally, the FDA may require adoption of a Risk Evaluation and Mitigation Strategies (REMS) requiring prescriber training or a post-marketing registry or may restrict the marketing and dissemination of these products. Despite the time and expense invested in the clinical development of product candidates, regulatory approval is never guaranteed. Assuming successful clinical development, we intend to seek product approvals in countries outside of the United States. As a result, we would be subject to regulation by the EMA, as well as the other regulatory agencies in these countries.

Approval procedures vary among countries and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries might differ from that required to obtain FDA approval.  Interruptions or delays in the operations of the FDA and foreign regulatory authorities as a result of the COVID-19 pandemic may negatively impact review, inspection, and approval timelines.  Regulatory approval in one country does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country may negatively impact the regulatory process in others. As in the United States, the regulatory approval process in Europe and in other countries is lengthy and challenging. The FDA, and any other regulatory body around the world, can delay, limit or deny approval of a product candidate for many reasons, including:

the FDA or comparable foreign regulatory authorities may disagree with the study design or implementation of our clinical trials;
we may be unable to demonstrate to the satisfaction of the FDA or comparable foreign regulatory authorities that a product candidate is tolerable and effective for an indication;
the FDA may not accept clinical data from trials conducted by individual investigators or in countries where the standard of care is potentially different from that of the United States;
the results of clinical trials may not meet the level of statistical significance required by the FDA or comparable foreign regulatory authorities for approval;
we may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh its safety risks;
the FDA or comparable foreign regulatory authorities may disagree with our interpretation of data from preclinical studies and/or clinical trials;
the data collected from clinical trials of our product candidates may not be sufficient to support the submission of a BLA, NDA or other marketing authorization submission or to obtain regulatory approval in the United States or elsewhere;

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the FDA or comparable foreign regulatory authorities may not approve the manufacturing processes or facilities of third-party manufacturers with which we or our collaborators currently contract for clinical supplies and plan to contract for commercial supplies; or
the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval.

Regulatory approvals for our product candidates may not be obtained without lengthy delays, if at all. Any delay in obtaining, or inability to obtain, applicable regulatory approvals would prevent us from commercializing our product candidates.

A breakthrough therapy or Fast Track designation by the FDA may not actually lead to a faster development or regulatory review or approval process.

We may seek breakthrough therapy or Fast Track designation for some of our drug candidates.   For example, in January 2019, the FDA granted breakthrough therapy designation to UKONIQ for the treatment of adult patients with marginal zone lymphoma (MZL) who have received at least one prior anti-CD20 regimen, and in October 2020, the FDA granted Fast Track designation to the investigation of ublituximab in combination with UKONIQ for the treatment of adult patients with CLL. If a drug is intended for the treatment of a serious or life-threatening condition and the drug demonstrates the potential to address unmet medical needs for this condition, the sponsor may apply for breakthrough therapy or Fast Track designations. The FDA has broad discretion whether or not to grant these designations, so even if we believe a particular drug candidate is eligible for such a designation, we cannot be sure that the FDA would decide to grant it. Even if we receive breakthrough therapy or Fast Track designation for a drug candidate, we may not experience a faster development process, review or approval compared to conventional FDA procedures. Neither breakthrough therapy nor Fast Track designation guarantees priority review of an NDA or BLA application, and therefore despite receiving a Fast Track designation for U2 for the treatment of adult patients with CLL, there can be no guarantee that the FDA will not assign a standard review timeline to our BLA filing for this indication.  The FDA may withdraw a breakthrough therapy or Fast Track designation if it believes that the designation is no longer supported by data from our clinical development program.  

We have received orphan drug designation for some of our drug candidates for specified indications, and we may seek additional orphan drug designations for other indications and some of our other drug candidates. However, we may be unsuccessful in obtaining or may be unable to maintain the benefits associated with orphan drug designation, including the potential for market exclusivity.

Ublituximab (as monotherapy) received orphan drug designation from the FDA for the treatment of MZL (nodal and extranodal) in September 2013, for the treatment of CLL in August 2010, and received orphan drug designation by the EMA for the treatment of CLL in November 2009. We also obtained orphan drug designation for UKONIQ (as monotherapy) for the treatment of CLL in August 2016, all three types of MZL (nodal, extranodal and splenic) in April 2019, and FL in March 2020. In January 2017, we announced that the FDA granted orphan drug designation covering the combination of ublituximab and UKONIQ for the treatment of patients with CLL and DLBCL. As part of our business strategy, we may seek orphan drug designation for our other drug candidates; however, we may be unsuccessful. Regulatory authorities in some jurisdictions, including the United States and the European Union, may designate drugs for relatively small patient populations as orphan drugs. Under the U.S. Orphan Drug Act, the FDA may designate a drug as an orphan drug if it is a drug intended to treat a rare disease or condition, which is generally defined as a patient population of fewer than 200,000 individuals annually 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 United States, orphan drug designation entitles a party to financial incentives such as opportunities for grant funding towards clinical trial costs, tax advantages and user-fee waivers.

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Generally, if a product with an orphan drug designation subsequently receives the first marketing approval for the indication for which it has such designation, the product is entitled to a period of marketing exclusivity, which precludes FDA or EMA from approving another marketing application for the same drug or biologic for that time period.  Even if we obtain orphan drug exclusivity for a drug, that exclusivity may not effectively protect the designated drug from competition because different drugs can be approved for the same condition. Even after an orphan drug is approved, the FDA can subsequently approve another product that meets the definition of a “same drug” under 21 C.F.R. 316.3 for the same condition if the FDA concludes that the later product is clinically superior in that it is shown to be safer, more effective or makes a major contribution to patient care. In addition, a designated orphan drug may not receive orphan drug exclusivity if it is approved for a use that is broader than the indication for which it received orphan drug designation. Moreover, orphan drug exclusive marketing rights in the United States may be lost if the FDA exercises its authority to revoke orphan drug designation, which it may do on a variety of grounds, including that the request contained an untrue statement of material fact or omitted material information, or that the drug in fact was not eligible for orphan drug designation. 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. While we intend to seek additional orphan drug designation for our other drug candidates, we may never receive such designations. Even if we receive orphan drug designation for any of our drug candidates, there is no guarantee that we will enjoy the benefits of those designations or obtain orphan drug exclusivity.

We are conducting clinical trials, and anticipate additional clinical trials, for product candidates at sites outside the United States, and the FDA may not accept data from trials conducted in such locations.

Many of our Phase 3 and registration-directed clinical trials such as UNITY-CLL, UNITY-NHL and ULTIMATE I and II utilize international clinical research sites, including sites in eastern European countries. We work with what we believe are reputable CROs and clinical research sites in conducting our studies internationally. Nevertheless, there can be heightened challenges to monitoring and oversight of global clinical trials and sponsors are subject to the risk that fraud, misconduct, incompetence, unexpected patient variability and other issues affecting the reliability, quality, and outcome of studies. Such problems, if they were to occur, could negatively impact trial results, and depending on the circumstances and scope of concerns could potentially even prevent a trial from being useful or acceptable for regulatory approval. If such events were to occur with respect to any of our trials (and in particular with respect to registration-directed studies), they would have a substantial negative impact on our business. 

An approval of one of our product candidates in the United States would not assure approval of that candidate in foreign jurisdictions.

The approval procedures for pharmaceuticals vary among countries and obtaining approval in one jurisdiction does not guarantee approval in another jurisdiction.  For example, even if the FDA grants approval of a product candidate, comparable regulatory authorities in foreign jurisdictions may not approve the same product candidate or may require additional evidence for approval.  In many countries outside the United States, the product must be approved for reimbursement before it can be marketed.  As a general matter, however, the foreign regulatory approval process involves risks similar or identical to the risks associated with the FDA approval discussed above.  Therefore, we cannot guarantee that we, or future collaborators, will obtain approvals of our product candidates in any foreign jurisdiction on a timely basis, if at all.  Failure to receive approval in certain foreign markets could significantly impact the full market potential of our product candidates.  Furthermore, if we obtain regulatory approval for a product candidate in a foreign jurisdiction, we will be subject to the burden of complying with complex regulatory, legal, and other requirements that could be costly and could subject us to additional risks and uncertainties.

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We have product candidates still under development and are also preparing for commercial manufacturing activities, and as such clinical and commercial manufacturing site additions, scale-up and process improvements implemented in the production of those product candidates may affect their ultimate activity or function.

Generally, our product candidates are currently manufactured in relatively small batches for use in pre-clinical and clinical studies. Process improvements implemented to date have changed, and process improvements in the future may change, the activity and/or analytical profile of the product candidates, which may affect the safety and efficacy of the products. For instance, the manufacturing process for ublituximab has undergone several process improvements during the clinical trial process which have resulted in analytical differences between the materials. Such process improvements continued during the conduct of the Phase 3 study and materials from more than one manufacturing process were utilized in the Phase 3 UNITY-CLL trial. While analytical differences exist between those materials, we do not believe the differences will alter the safety or efficacy profile of ublituximab. However, it is possible that additional and/or different adverse events may appear among patients exposed to drug product manufactured under one process compared to the other, or that adverse events may arise with greater frequency, intensity and duration among patients exposed to drug product manufactured under one process compared to the other. Additionally, the efficacy of ublituximab may also be negatively impacted by such process changes. Given the uncertainty of the impact on product specifications, quality and performance, process improvements made during Phase 3 development carry a higher level of risk than those made prior to Phase 3 development. If there are significant differences in product attributes between the two materials, we may need to adjust our statistical analysis plans of the Phase 3 study to confirm that there is no difference in safety or efficacy between the product made by each process in order to allow us to utilize data from all enrolled patients, as well as be able to integrate clinical safety and/or efficacy results across studies to support any potential marketing application. There can be no assurance given that such analyses will be successful in demonstrating that there are no clinical differences between these drug products, which could substantially impact the approvability of the combination of UKONIQ and ublituximab based on the results of the UNITY-CLL study. In such circumstances, that would have a material adverse effect on the Company.

Further, no assurance can be given that the material manufactured from any future optimized processes, if any, for ublituximab or any of our product candidates will perform comparably to the product candidates as manufactured to date which could result in an unexpected safety or efficacy outcome as compared to the data published or presented to date. Similarly, following each round of process improvements, if any, for any of our drug candidates, future clinical trial results conducted with the new material will be subject to uncertainty related to the effects, if any, of those additional process improvements that were made.

In addition, we have engaged a secondary manufacturer for ublituximab to meet our current clinical and future commercial needs and anticipate engaging additional manufacturing sources for UKONIQ to meet expanded clinical trial and projected commercial needs. If a secondary manufacturer is not successful in replicating the product or experiences delays, or if regulatory authorities impose unforeseen requirements with respect to product comparability from multiple manufacturing sources, we may experience delays in clinical development. No assurance can be given that any additional manufacturers will be successful or that material manufactured by the additional manufacturers will perform comparably to ublituximab or UKONIQ as manufactured to date and used in currently available pre-clinical data and or in clinical trials presented publicly or reported in this or any previous filing, or that the relevant regulatory agencies will agree with our interpretation of comparability.

In addition, with the FDA approval of UKONIQ and as we move closer to commercialization of ublituximab, we are scaling-up production to ensure adequate commercial supply. This is an expensive process and there can be no assurance given that such scale-up will be successful in providing pharmaceutical product that is of sufficient quantity, or of a quality that is consistent with our previously established specifications, or that meets the requirements set by regulatory agencies under which we may seek approval of our product candidates. If scale-up were not to succeed, our ability to supply our anticipated market at a reasonable cost of goods would be negatively impacted. In such an event, that would have a material adverse effect on the Company. Scale up could also require additional process improvement that might be required to accommodate new and larger equipment utilized in the scaled-up process. If that were to occur and we could not demonstrate to the FDA that the materials were analytically substantially similar, we might be required to run additional clinical testing to demonstrate that they are substantially similar. That would entail a significant delay and significant increase in total cost, all of which would have a material adverse effect on the Company.

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Risks Related to Governmental Regulation of Pharmaceutical Industry and Legal Compliance Matters

We are subject to new legislation, regulatory proposals and managed care initiatives that may increase our costs of compliance and adversely affect our ability to market our products, obtain collaborators and raise capital.

In both the United States and certain foreign countries, there have been a number of legislative and regulatory changes or proposed changes to the healthcare system, many of which have focused on prescription drug pricing and lowering overall healthcare costs, that could impact our ability to sell our products profitably. We expect prescription drug pricing and other healthcare costs to continue to be subject to intense political and social pressures on a global basis.

In the United States, the President, federal and state legislatures, health agencies and third-party payors continue to focus on containing the cost of healthcare and addressing public concern over access and affordability of prescription drugs.  The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, the ACA) was enacted in 2010 and made significant changes to the U.S. healthcare system. ACA changes included expanding healthcare coverage through Medicaid expansion and implementation of the individual health insurance mandate; changing coverage and reimbursement of drug products under government healthcare programs; imposing an annual fee on manufacturers of branded drugs; and expanding government enforcement authority.   Although the ACA has been the subject of a number of legislative and litigation challenges since it passed, it is expected that the Biden Administration will seek to strengthen and expand the ACA.  We cannot product what affect further changes to the ACA (whether repeal, replacement, or further amendment) would have on our business.

Beyond the ACA, there has been increasing legislative, regulatory and enforcement interest with respect to prescription drug pricing practices.  With the election of President Biden and changes in make-up of the Senate following the 2020 election, we face uncertainties with respect to executive and legislative actions relating to drug pricing.  Proposals that may garner bipartisan legislative support include adding a cap on out-of-pocket spending under Medicare Part D and imposing limits on increases in drug prices.  In addition, President Biden may take executive action to introduce new drug pricing models and other drug pricing initiatives.  

Federal and state elections in 2020 have changed which persons and parties occupy the Office of the President of the United States and control both chambers of Congress and many states’ governors and legislatures.  These changes will likely result in new priorities, rulemakings and legislation.  We anticipate that the new Biden Administration will issue a number of Executive Orders, which may alter the policies of the previous administration.  Additionally, certain agency rules and policy statements of the prior four years may be rescinded.  Further, the Biden Administration may propose substantial changes to the U.S. healthcare system, including expanding government-funded health insurance options.  We are uncertain of the impact or outcome of these potential Executive Orders, rescission of rules and policy statements, or new legislation, especially any relative impact on the healthcare regulatory and policy landscape, or the impact they may have on our business. While drug pricing was a priority for the prior administration, we expect that it will continue to be a focus of the Biden Administration in 2021 and beyond. At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical 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.  

There continue to be efforts to lower drug prices through increased competition, with policy proposals seeking to facilitate generic and biosimilar approval and marketing authorization.  For example, in 2018, the FDA announced the Biosimilar Action Plan and sought input on how the agency can best facilitate greater availability of biosimilar products, including input on whether changes to an approved biologic (e.g., a new indication) would be protected by the remainder of the statutory 12-year exclusivity period (commonly referred to as “umbrella exclusivity”).  In the event there is a modification to the biologic exclusivity period or other steps taken to facilitate biosimilar or generic approvals, we could experience biosimilar/generic competition of any products for which we receive FDA approval at an earlier time than currently anticipated.

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There have been several recent U.S. Congressional inquiries and proposed and enacted legislation designed to bring more transparency to drug pricing, reduce the cost of prescription drugs under Medicare, limit price increases, evaluate the relationship between pricing and manufacturer patient programs, and reform government health care program reimbursement methodologies for prescription drugs.  For example, the Bipartisan Budget Act of 2018 (the BBA) increased manufacturer point-of-sale discounts off negotiated prices of applicable brand drugs in the Medicare Part D coverage gap from 50% to 70% effective as of January 1, 2019, ultimately increasing the liability for brand drug manufacturers.   We expect that health care reform measures that may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we may receive for any of our product candidates, if approved. Any reduction in reimbursement from Medicare or other government health care programs may result in a similar reduction in payments from private payors.

At the state level, individual states are experiencing significant economic pressure within their state Medicaid programs and responding to public concern over the cost of healthcare.  The economic impact of the COVID-19 pandemic has further exacerbated state budgetary pressures.  States, including California, Florida, Nevada and Maine, among others, have responded to these pressures with a range of legislative enactments and policy proposals designed to control prescription drug prices by, for example, allowing importation of pharmaceutical products from jurisdictions outside the U.S., imposing price controls on state drug purchases, consolidating state drug purchasing to a single purchaser, and imposing transparency measures around prescription drug prices and marketing costs.  These measures, which vary by state, could reduce the ultimate demand for our products, if approved, or put pressure on our product pricing.

In addition, other legislative changes have been adopted that could have an adverse effect upon, and could prevent, our products’ or product candidates’ commercial success. More broadly, the Budget Control Act of 2011, as amended, or the Budget Control Act, includes provisions intended to reduce the federal deficit, including reductions in Medicare payments to providers through 2030 (except May 1, 2020 to December 31, 2020). Any significant spending reductions affecting Medicare, Medicaid or other publicly funded or subsidized health programs, or any significant taxes or fees imposed as part of any broader deficit reduction effort or legislative replacement to the Budget Control Act, or otherwise, could have an adverse impact on our anticipated product revenues.

Furthermore, legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for drugs. We cannot be sure whether additional legislative changes will be enacted, or whether the FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals of our product candidates, if any, may be. In addition, increased scrutiny by Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us to more stringent product labeling and post-marketing testing and other requirements.

In many international markets, including the European Union, the government regulates prescription drug prices, patient access, and/or reimbursement levels to control the biopharmaceutical budget of their government-sponsored healthcare system.  The European Union and some individual countries have announced or implemented measures and may in the future implement new or additional measures, to reduce biopharmaceutical costs to contain the overall level of healthcare expenditures.  These measures vary by country and may include, among other things, non-coverage decisions, patient access restrictions, international price referencing, mandatory discounts or rebates, and cross-border sales of prescription drugs.  These measures may adversely affect our ability to generate revenues or commercialize our product candidates in certain international markets.

There likely will continue to be pressure on prescription drug prices globally and legislative and regulatory proposals, including at the federal and state levels in the U.S., directed at broadening the availability of health care and containing or lowering the cost of health care products and services. We cannot predict the initiatives that may be adopted in the future. The continuing efforts of the government, health insurance companies, managed care organizations and other payors of health care services to contain or reduce costs of health care may adversely affect, among other things:

our ability to generate revenues and achieve or maintain profitability;
the demand for any products for which we may obtain regulatory approval;
our ability to set a price that we believe is fair for our products;
the level of taxes that we are required to pay; and
the availability of capital.

In addition, governments may impose price controls, which may adversely affect our future profitability.

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Our relationships with customers and third-party payors will be subject to applicable fraud and abuse laws, false claims laws, transparency and disclosure laws, health information and security laws, and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, exclusion from government healthcare programs, contractual damages, reputational harm and diminished profits and future earnings.

With the FDA approval of UKONIQ in February 2021, we became subject to additional extensive healthcare statutory and regulatory requirements and oversight by the federal government and the states and foreign governments in which we conduct our business. Healthcare providers and third-party payors play a primary role in the recommendation and prescription of any drug candidates for which we obtain marketing approval. Our past, current and future relationships, arrangements and interactions with these professionals and entities, as well as with patients and patient advocacy organizations will expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we market, sell and distribute our drug candidates for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include the following:

the federal Anti-Kickback Statute prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made under 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 federal False Claims Act imposes civil penalties, including through civil whistleblower or qui tam actions, against individuals or entities for, among other things, knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government. In addition, the government may assert that a claim including items and services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act;
the federal Health Insurance Portability and Accountability Act of 1996 (or HIPAA) imposes criminal and civil liability for executing 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 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;
the so-called federal “Sunshine Act” under the Affordable Care Act requires manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children’s Health Insurance Program to monitor and report information related to payments and other transfers of value to and the ownership and investment interests of physicians and teaching hospitals (and additional categories of healthcare providers beginning with reports submitted in 2022) to the federal government for redisclosure to the public;
HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 and its implementing regulations, which also imposes obligations on certain covered entity healthcare providers, health plans, and healthcare clearinghouses as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health information, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;
a wide range of federal and state consumer protection and unfair competition laws, which broadly regulate marketplace activities and activities that potentially harm consumers including those related to privacy;
the Federal Food, Drug, and Cosmetic Act and its implementing regulations, which among other things, strictly regulate drug product marketing and prohibit manufacturers from promotion and marketing of products prior to approval or for uses inconsistent with the FDA-required labeling;
federal laws, including the Medicaid Drug Rebate Program, that require pharmaceutical manufacturers to report certain calculated product prices to the government or provide certain discounts or rebates to government authorities or private entities, often as a condition of reimbursement under government healthcare programs;
the Drug Supply Chain Security Act, or DSCSA,which imposes obligations on entities in the commercial product supply chain, including manufacturers, to identify and track prescription drugs as they are distributed in the U.S.; and
state law equivalents of some of the above federal laws, such as anti-kickback and false claims laws that may apply to items or services reimbursed by any third-party payor, including commercial insurers, state transparency laws, state laws limiting interactions between pharmaceutical manufacturers and members of the healthcare industry, and state laws governing the

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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 federal laws, thus complicating compliance efforts.

In the U.S., to help patients who have no or inadequate insurance access to UKONIQ, we have a patient support program that we administer in conjunction with a patient support program vendor and other third parties.  There has been heightened governmental scrutiny recently over the scope of patient support programs and the manner in which drug manufacturers and their vendors operate such programs.  We cannot ensure that our compliance controls, policies, and procedures will be sufficient to protect against acts of our employees, business partners or vendors that may violate the laws, regulations, or evolving government guidance on patient support programs. A government investigation, regardless of its outcome, could impact our business practices, harm our reputation, divert attention of management, increase our expenses and reduce availability of assistance to patients.  If we or our vendors are deemed to fail to comply with relevant laws, regulations or government guidance in the operation of these programs, we could be subject to damages, fines, penalties or other criminal, civil or administrative sanctions or enforcement actions.  

Ensuring that our future business arrangements with third parties comply with applicable healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations.  The compliance and enforcement landscape, and related risk, is informed by government enforcement precedent and settlement history, Advisory Opinions, and Special Fraud Alerts.  Our approach to compliance may evolve over time in light of these types of developments.  Additionally, the potential safe harbors available under the AKS are subject to change through legislative and regulatory action, and we may decide to adjust our business practices or be subject to heightened scrutiny as a result.  If our operations, including anticipated activities to be conducted by our sales team, were to be found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, exclusion from government-funded healthcare programs, such as Medicare and Medicaid, qui tam actions brought by individual whistleblowers in the name of the government, and the curtailment or restructuring of our operations.

If we violate applicable data privacy and security laws, we may be subject to penalties, including civil and criminal penalties, damages, fines and the curtailment or restructuring of our operations.

We may be subject to privacy and security laws in the various jurisdictions in which we operate, obtain or store personally identifiable information. The legislative and regulatory landscape for privacy and data protection continues to evolve, and there has been an increasing focus on privacy and data protection issues with the potential to affect our business.

Within the United States, various federal and state laws regulate the privacy and security of personal information and so may affect our business operations.  For example, at the federal level, our operations may be affected by the data privacy and security provisions of HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations. Although we are not currently directly subject to HIPAA, HIPAA affects the ability of healthcare providers and other entities with which we may interact, including clinical trial sites, to disclose patient health information to us.  Under Section 5(a) of the Federal Trade Commission Act, or the FTCA, the FTC expects a company’s data security measures to be reasonable and appropriate in light of the sensitivity and volume of consumer information it holds, the size and complexity of its business, and the cost of available tools to improve security and reduce vulnerabilities. Medical data is considered sensitive data that merits stronger safeguards. States may also impose requirements, for example the California Consumer Privacy Act, or the CCPA, went into effect in January 2020 creating data privacy obligations for covered companies and providing privacy rights to California residents, including the right to opt out of certain disclosures of their information.

Numerous other jurisdictions regulate the privacy and security of personally identifiable data. For example, the processing of personal data in the European Economic Area, or the EEA, is subject to the General Data Protection Regulation, or the GDPR, which took effect in May 2018. The GDPR increases obligations with respect to clinical trials conducted in the EEA, such as in relation to the provision of fair processing notices, exercising data subject rights and reporting certain data breaches to regulators and affected individuals, as well as how we document our relationships with third parties that process GDPR-covered personal data on our behalf. The GDPR also increases the scrutiny applied to transfers of personal data from the EEA (including from clinical trial sites in the EEA) to countries that are considered by the European Commission to lack an adequate level of data protection, such as the United States. In July 2020, the Court of Justice of the European Union invalidated the EU-U.S. Privacy Shield framework, one of the mechanisms used to legitimize the transfer of personal data from the EEA to the U.S., which decision may lead to increased scrutiny on data transfers from the EEA to the U.S. generally and increase our costs of compliance with data privacy legislation.  

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If our operations are found to be in violation of any data privacy and security laws, rules or regulations that apply to us, we may be subject to penalties, including civil and criminal penalties, damages, fines and the curtailment or restructuring of our operations, which could adversely affect our ability to operate our business and our financial results. Although compliance programs can mitigate the risk of investigation and prosecution for violations of these laws, rules or regulations, we cannot be certain that our program will address all areas of potential exposure and the risks in this area cannot be entirely eliminated, particularly because the requirements and government interpretations of the requirements in this space are constantly evolving. Any action against us for violation of these laws, rules or regulations, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention from the operation of our business, as well as damage our business or reputation. Moreover, achieving and sustaining compliance with applicable federal and state privacy, security, fraud and reporting laws may prove costly.

If we fail to adequately understand and comply with the local laws and customs as we expand into new international markets, these operations may incur losses or otherwise adversely affect our business and results of operations.

We expect to operate a portion of our business in certain countries through subsidiaries or through supply, marketing, and distributor arrangements. In those countries where we have limited experience in operating subsidiaries and in reviewing equity investees, we will be subject to additional risks related to complying with a wide variety of national and local laws, including restrictions on the import and export of certain intermediates, drugs, technologies and multiple and possibly overlapping tax laws. In addition, we may face competition in certain countries from companies that may have more experience with operations in such countries or with international operations generally. We may also face difficulties integrating new facilities in different countries into our existing operations, as well as integrating employees hired in different countries into our existing corporate culture. If we do not effectively manage our operations in these subsidiaries and review equity investees effectively, or if we fail to manage our alliances, we may lose money in these countries and it may adversely affect our business and results of our operations. In all interactions with foreign regulatory authorities and other government agencies, we are exposed to liability risks under the Foreign Corrupt Practices Act or similar anti-bribery laws.

Any product for which we obtain marketing approval could be subject to restrictions or withdrawal from the market and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with products.

Any regulatory approvals that we receive for our drug candidates may be subject to limitations on the indicated uses for which the drug may be marketed or to conditions of approval that may require potentially costly post-marketing clinical trials or surveillance to monitor safety and efficacy of the drug candidate.  In addition, any product for which we obtain marketing approval, along with the manufacturing processes and facilities, post-approval clinical data, labeling, advertising and promotional activities for such product, will be subject to continual requirements of, and review by, the FDA and comparable regulatory authorities. These requirements include submissions of safety and other post-marketing information and reports, registration requirements, current Good Manufacturing Practice (cGMP) requirements relating to quality control, quality assurance and corresponding maintenance of records and documents, and requirements regarding promotional interactions with healthcare professionals.

Failure to comply with these regulatory requirements or later discovery of previously unknown problems with products, manufacturers, or manufacturing processes, may result in actions such as:

restrictions on product manufacturing, distribution or use;
restrictions on the labeling or marketing of a product;
requirements to conduct post-marketing studies or clinical trials;
warning letters;
withdrawal of the products from the market;
refusal to approve pending applications or supplements to approved applications that we or our subsidiaries submit;
recalls;
suspension or termination of ongoing clinical trials;
fines, restitutions, or disgorgement of profits or revenues;
refusal to permit the import or export of products;
product seizure or detentions;
injunctions or the imposition of civil or criminal penalties; and
adverse publicity.

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Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity.  In addition, the FDA’s regulations, policies or guidance may change and new or additional statutes or government regulations may be enacted that could prevent or delay regulatory approval of our product candidates or further restrict or regulate post-approval activities.  We also cannot predict the likelihood, nature, or extent of adverse government regulation that may arise from pending or future legislation or administrative action, either in the United States or abroad.

If we, or our respective suppliers, third-party contractors, clinical investigators or collaborators are slow to adapt, or are unable to adapt, to changes in existing regulatory requirements or adoption of new regulatory requirements or policies, we, our subsidiaries, or our respective collaborators may be subject to the actions listed above, including losing marketing approval for products, resulting in decreased revenue from milestones, product sales or royalties.

Our third-party manufacturers may use hazardous materials in the production of UKONIQ and our product candidates and if so, they must comply with environmental laws and regulations, which can be expensive and restrict how we or they do business.

Manufacturing activities for the production of UKONIQ and our product candidates involve the controlled storage, use, and disposal of hazardous materials, including the components of our product candidates, and other hazardous compounds. Our third-party manufacturers and we are subject to federal, state, and local laws and regulations governing the use, manufacture, storage, handling, release, disposal of, and exposure to, these hazardous materials. Violation of these laws and regulations could lead to substantial fines and penalties. Although we believe that our safety procedures, and those of our third-party manufacturers, for handling and disposing of these materials comply with the standards prescribed by these laws and regulations, we cannot eliminate the risk of accidental contamination or injury from these materials. In the event of an accident, state or federal authorities may curtail our use of these materials and interrupt our business operations. In addition, we could become subject to potentially material liabilities relating to the investigation and cleanup of any contamination, whether currently unknown or caused by future releases.

Risks Related to Our Dependence on Third Parties

We rely on third parties to generate clinical, preclinical and other data necessary to support the regulatory applications needed to conduct clinical trials and file for marketing approval. We rely on third parties to help conduct our planned clinical trials. If these third parties do not perform their services as required, we may not be able to obtain regulatory approval for or commercialize our product candidates when expected or at all.

In order to submit an Investigational New Drug application (IND), BLA, or NDA to the FDA and maintain these applications, it is necessary to submit all information on the clinical, non-clinical, chemistry, manufacturing, controls and quality aspects of the product candidate. Clinical trial applications and marketing authorization applications for foreign regulatory bodies have substantially similar requirements.  We rely on our third-party contractors and our licensing partners to provide portions of this data. If we are unable to obtain this data, or the data is not sufficient to meet the regulatory requirements, we may experience significant delays in our development programs.

Additionally, we use CROs to assist in the conduct of our current clinical trials and expect to use such services for future clinical trials and we rely upon medical institutions, clinical investigators and contract laboratories to conduct our trials in accordance with our clinical protocols and appropriate regulations. Our current and future CROs, investigators and other third parties play a significant role in the conduct of our trials and the subsequent collection and analysis of data from the clinical trials. There is no guarantee that any CROs, investigators and other third parties will devote adequate time and resources to our clinical trials or perform as contractually required. If any third parties upon whom we rely for administration and conduct of our clinical trials fail to meet expected deadlines, fail to adhere to its clinical protocols or otherwise perform in a substandard manner, our clinical trials may be extended, delayed or terminated, and we may not be able to commercialize our product candidates. In addition to the third parties identified above, we are also heavily reliant on the conduct of our patients enrolled to our studies by our third-party investigators. We rely on our clinical trial sites and investigators to properly identify and screen eligible candidates for our clinical trials, and for them to ensure participants adhere to our clinical protocol requirements. The majority of our clinical trial conduct occurs in the outpatient setting, where patients are expected to continue to adhere to our study protocol specified requirements. The ability of our enrolled patients to properly identify, document, and report adverse events; take protocol specified study drugs at the correct quantity, time, and setting, as applicable; avoid contraindicated medications; and comply with other protocol specified procedures such as returning to the trial site for scheduled laboratory and disease assessments, is wholly out of our control. Deviations from protocol procedures, such as those identified previously, could materially affect the quality of our clinical trial data, and therefore ultimately affect our ability to develop and commercialize our drug candidates. If any of our clinical trial sites terminates for any reason, we may experience the loss of follow-up information on patients enrolled in our ongoing clinical trials unless we are able to transfer

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the care of those patients to another qualified clinical trial site. If any of our clinical trial sites are required by the FDA or IRB to close down due to data management or patient management or any other issues, we may lose patients. In our MS Phase 2 trial, during routine monitoring and site audits, significant Good Clinical Practice (GCP) violations and other noncompliance issues were identified at one of our US-based large academic sites. The investigator left the institution and shortly thereafter the site terminated their participation in our study before all data could be source document verified. While we do not believe this will have any effect on the overall results of the MS Phase 2 trial, sensitivity analyses excluding data from this site will be performed and no assurance can be given that the results were not affected.

Whether conducted through a CRO or through our internal staff, we are solely responsible for ensuring that each of our clinical trials is conducted in accordance with the applicable protocol, legal and regulatory requirements and scientific standards, and our reliance on CROs will not relieve us of our regulatory responsibilities. For any violations of laws and regulations during the conduct of our clinical trials, we could be subject to warning letters or other enforcement actions that may include civil penalties up to and including criminal prosecution. We and our CROs are required to comply with regulations, including GCP guidelines for conducting, monitoring, recording and reporting the results of clinical trials to ensure that the data and results are scientifically credible and accurate, and that the trial patients are adequately informed of the potential risks of participating in clinical trials and their rights are protected. These regulations are enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for any drug candidates in clinical development. The FDA enforces GCP regulations through periodic inspections of clinical trial sponsors, clinical investigators, CROs, institutional review boards, and non-clinical laboratories. If we, our CROs, our investigators or other third parties fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you that, upon inspection, the FDA will determine that our current or future clinical trials comply with GCPs. In addition, our clinical trials must be conducted with drug candidates produced under cGMP regulations. Our failure or the failure of our CROs or CMOs to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement action. We also are required to register most ongoing clinical trials and post the results of completed clinical trials on government-sponsored databases, e.g., ClinicalTrials.gov, within certain timeframes. Failure to do so can result in fines, adverse publicity and civil and criminal sanctions.

Although we intend to design the clinical trials for our drug candidates, CROs play an important role in the conduct of our clinical trials, especially outside of the United States. As a result, many important aspects of our development programs, including their conduct and timing, will be outside of our direct control. Our reliance on third parties to conduct current or future clinical trials will also result in less direct control over the management of data developed through clinical trials than would be the case if we were relying entirely upon our own staff. Communicating with outside parties can also be challenging, potentially leading to mistakes as well as difficulties in coordinating activities. Outside parties may:

have staffing difficulties;
fail to comply with contractual obligations;
experience regulatory compliance issues;
undergo changes in priorities or become financially distressed; or
form relationships with other entities, some of which may be our competitors.

These factors may materially adversely affect the willingness or ability of third parties to conduct our clinical trials and may subject us to unexpected cost increases that are beyond our control. If the CROs do not perform clinical trials in a satisfactory manner, breach their obligations to us or fail to comply with regulatory requirements, the development, regulatory approval and commercialization of our drug candidates may be delayed, we may not be able to obtain regulatory approval and commercialize our drug candidates, or our development program may be materially and irreversibly harmed. If we are unable to rely on clinical data collected by our CROs, we could be required to repeat, extend the duration of, or increase the size of any clinical trials we conduct and this could significantly delay commercialization and require significantly greater expenditures.

If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs. If 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, any clinical trials such CROs are associated with may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. As a result, we believe that our financial results and the commercial prospects for our product candidates in the subject indication would be harmed, our costs could increase and our ability to generate revenue could be delayed.

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We contract with third parties for the manufacture of UKONIQ for commercial supply and of our product candidates for pre-clinical development and clinical trials, and we expect to continue to do so. This reliance on third parties increases the risk that we will not have sufficient quantities of our products or product candidates or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

We do not currently own or operate, nor do we have any plans to establish in the future, any manufacturing facilities. We rely, and expect to continue to rely, on third parties for the manufacture, packaging and labeling of any products that we commercialize, including UKONIQ, and our product candidates for pre-clinical development and clinical testing.  In some circumstances, our licensor has entered into arrangements with contract manufacturers to supply product for our clinical and commercial demand. Our reliance on third parties increases the risk that we will not have sufficient quantities of our products or product candidates or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

The facilities used by contract manufacturers to manufacture our drug candidates typically undergo inspections by the FDA or a comparable foreign regulatory to verify compliance with applicable cGMP regulations.  Such inspections may be conducted after we submit our marketing applications to or receive marketing approval from the FDA or a comparable foreign regulatory authority. Although FDA and other regulators impose requirements regarding our selection, qualification, oversight, and monitoring of our contract manufacturers and hold us responsible for the ultimate compliance of our products, we do not directly control the manufacturing process of our third-party contract manufacturers and are subject to risks associated with their ability to comply with cGMPs in connection with the manufacture of our products and product candidates. If our contract manufacturers cannot successfully manufacture material that conforms to our specifications and the strict regulatory requirements of the FDA or others and the compliance concerns cannot be resolved, remediated, or otherwise addressed to FDA’s satisfaction in a timely manner during the review of our NDAs or BLAs, it may negatively impact our ability to obtain regulatory approval for our drug candidates or obtain approval within projected timelines. We cannot guarantee the ability of our third-party manufacturers to maintain compliance with cGMP regulations, including having adequate quality control, quality assurance and qualified personnel. Further, our failure, or the failure of our third-party manufacturers, to comply with applicable regulations could result in sanctions being imposed on us, including clinical holds, fines, injunctions, civil penalties, delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of products or product candidates, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect our business and supplies of our products or product candidates.

For certain of our product candidates, we do not have long-term supply agreements with contract manufacturers. For these product candidates, we purchase our required drug supply, including the drug product and drug substance on a purchase order basis. We may be unable to establish or maintain agreements with third-party manufacturers for these products or product candidates or do so on acceptable terms. No assurance can be given that long-term, scalable manufacturers can be identified or that they can make clinical and commercial supplies of our product candidates that meet the product specifications of previously manufactured batches, or are of a sufficient quality, or at an appropriate scale and cost to make it commercially feasible. If they are unable to do so, it could have a material adverse impact on our business.

Even if we are able to establish and maintain agreements with third-party manufacturers, reliance on third-party manufacturers entails additional risks, including:

reliance on the third party for regulatory compliance and quality assurance;
the possible breach of the manufacturing or supply agreement by the third party;
the possible misappropriation of our proprietary information, including our trade secrets and know-how; and
the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us.

Moreover, our current long-term supply agreement contains certain minimum purchases in what are commonly referred to as a “take or pay” provision, and it is possible that future supply agreements could contain such provisions. To the extent our demand does not meet the minimum supply required amounts, we would be forced to pay more than desired. This could create a situation where we are spending more than required and could impact our on-going operations and entail curtailing other important research and development or commercialization efforts, all of which could have a material adverse effect on the Company.

Our drug candidates and any drugs that we may develop may compete with other drug candidates and approved drugs for access to manufacturing facilities. There are a limited number of manufacturers that operate under cGMP regulations and that might be capable of manufacturing for us.

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Any performance failure on the part of our existing or future manufacturers could delay clinical development or marketing approval, or interrupt commercial distribution. If our current contract manufacturers cannot perform as agreed, we may be required to replace such manufacturers causing additional costs and delays in identifying and qualifying any such replacement.

Our current and anticipated future dependence upon others for the manufacture of our products or product candidates could result in significant delays or gaps in availability of such products or product candidates and may adversely affect our future profit margins and our ability to commercialize any drugs that receive marketing approval on a timely and competitive basis.

We also rely on other third parties to store and distribute drug supplies for our clinical trials and for commercial demand for UKONIQ and expect to continue to do so for any other product candidates that may receive approval. Any performance failure on the part of our distributors could delay clinical development or marketing approval of any future product candidates or commercialization of our products, producing additional losses and depriving us of potential product revenue.

The third parties upon whom we rely for the supply of starting materials, intermediates, active pharmaceutical ingredient (API)/drug substance, drug product, and other materials used in our drug candidates are our sole source of supply, and the loss or disruption of any of these suppliers, including as a result of the COVID-19 pandemic, could significantly harm our business.

The starting materials, intermediates, API/drug substance, and drug product used in many of our drug candidates are currently supplied to us from single-source suppliers. Our ability to successfully develop our drug candidates, supply our drug candidates for clinical trials and to ultimately supply our commercial drugs in quantities sufficient to meet the market demand, depends in part on our ability to obtain starting materials, intermediates, API/drug substance, and drug product for these drugs in accordance with regulatory requirements and in sufficient quantities for clinical testing and commercialization. It is expected that many of our manufacturing partners will be sole source suppliers from single site locations for the foreseeable future. Various raw materials, components, and testing services required for our products may also be single sourced.  We are not certain that our single-source suppliers will be able to supply sufficient quantities of their products or on the timelines necessary to meet our needs, either because of the nature of our agreements with those suppliers, our limited experience with those suppliers, our relative importance as a customer to those suppliers, public health emergencies such as the COVID-19 pandemic or natural disasters that may cause those suppliers to stop work for a period of time.  If any of our suppliers ceases its operations for any reason or is unable or unwilling to supply starting materials, intermediates, API/drug substance, and drug product in sufficient quantities or on the timelines necessary to meet our needs, it could significantly and adversely affect our business, the supply of our drug candidates and our financial condition.  In addition, if our current or future supply of any of our products or product candidates should fail to meet specifications during its stability program there could be a voluntary or mandatory product recall if the product is approved and, even in the absence of a recall, there could be significant interruption of our supply of drug, which would adversely affect the clinical development and commercialization of the product.  

Although COVID-19 has not had a material adverse effect on our supply chain to date, no assurance can be given that it will not in the future if the situation persists or worsens. UKONIQ is manufactured in India, ublituximab is manufactured in South Korea, and TG-1701 is manufactured in China.  Each of these countries continues to be, or has been, subject to government-imposed quarantines and travel restrictions due to the COVID-19 pandemic, which, in some cases, have resulted in reduced operations at manufacturing and research locations and time-limited shutdowns.  Our contract manufacturers for UKONIQ and ublituximab are continuing operations at varying levels of capacity. We have worked closely with our contract manufacturer for UKONIQ to plan for anticipated commercial supply needs.  We also are working closely with our contract manufacturer for ublituximab to plan for our anticipated commercial supply needs if we are successful in our continued clinical and regulatory development.  We will continue to monitor the situation very closely with our suppliers in impacted regions.  

We continually evaluate our supply chains to identify potential risks and needs for additional manufacturers and other suppliers for the production of our products and product candidates. Establishing additional or replacement suppliers for the API/drug substance and drug product, if required, may not be accomplished quickly or at all and may involve significant expense. If we are able to find a replacement supplier, we would need to evaluate and qualify such replacement supplier and its ability to meet quality and compliance standards. Any change in suppliers or the manufacturing process could require additional regulatory approval and result in operational delays. While we seek to maintain adequate inventory of materials necessary for the production of our products and product candidates, any supply interruption or delay, or our inability to identify alternate sources at acceptable prices in a timely manner could impede, delay, limit or prevent our commercialization and development efforts, which could harm our business, results of operations, financial condition and prospects.

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Because we have in-licensed UKONIQ and our product candidates from third parties, any dispute with or non-performance by our licensors will adversely affect our ability to develop and commercialize the applicable product candidates.

or product candidate.

Because we license UKONIQ and our foundational intellectual propertyproduct candidates from third parties and we expect to continue to in-license additional intellectual property rights,product candidates, if there is any dispute between us and our licensor regarding our rights under a license agreement, our ability to develop and commercialize ourthe applicable product candidatesor product candidate may be adversely affected. Disputes may arise with the third parties from whom we license our intellectual property rights fromproducts and product candidates for a variety of reasons, including:

the scope of rights granted under the license agreement and other interpretation-related issues;
the extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the license agreement;
the sublicensing of patent and other rights under our collaborative development relationships and obligations associated with sublicensing;
our diligence obligations under the license agreement and what activities satisfy those diligence obligations;
the ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
the priority of invention of patented technology.
the scope of rights granted under the license agreement and other interpretation-related issues;
the extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement;
the sublicensing of patent and other rights under our collaborative development relationships and obligations associated with sublicensing;
our diligence obligations under the license agreement and what activities satisfy those diligence obligations;
the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
the priority of invention of patented technology.

In addition, the agreements under which we currently license intellectual property or technologyumbralisib and our product candidates from third parties are complex,, and certain provisions in such agreements may be susceptible to multiple interpretations, or may conflict in such a way that puts us in breach of one or more agreements, which would make us susceptible to lengthy and expensive disputes with one or more of our licensing partners. The resolution of any contract interpretation disagreement that may arise could narrow what we believe to be the scope of our rights to the relevant intellectual property or technology, or increase what we believe to be our financial or other obligations under the relevant agreement, either of which could have a material adverse effect on our business, financial condition, results of operations, and prospects. Moreover, if disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be unable to successfully develop and commercialize the affected product candidates,or product candidate, which could have a material adverse effect on our business, financial conditions, results of operations, and prospects.


We do not have full internal development capabilities, and are thus reliant upon our partners and third parties to generate clinical, preclinical and quality data necessary to support the regulatory applications needed to conduct clinical trials and file for marketing approval.
In order to submit and maintain an IND, Biologics License Application (“BLA”), or New Drug Application (“NDA”) to the FDA, it is necessary to submit all information on the clinical, non-clinical, chemistry, manufacturing, controls and quality aspects of the product candidate. We rely on our third party contractors and our licensing partners to provide a significant portion of this data. If we are unable to obtain this data, or the data is not sufficient to meet the regulatory requirements, we may experience significant delays in our development programs. Additionally, an IND must be active in each division in which we intend to conduct clinical trials. Currently we do not have an active IND for any of the IRAK4, BTK, or BET inhibitors, nor for our anti-GITR antibody. Additionally, there can be no assurance given that any of the molecules under development in our IRAK4, BTK, or BET inhibitor program or in our anti-GITR antibody research program will demonstrate sufficient pharmacologic properties during pre-clinical evaluation to advance to IND enabling studies, or that such IND enabling studies, if any are conducted, will provide data sufficient to support the filing of an IND, or that such IND, if filed, would be accepted by any FDA division under which we would seek to develop any product candidate. While we maintain an active IND for TG-1101 and TGR-1202 enabling the conduct of studies in the FDA’s Division of Hematology and Oncology, and an active IND for TG-1101 under the FDA’s Division of Neurology, there can be no assurance that we will be successful in obtaining an active IND for these drugs in any other division under whose supervision we may seek to develop our product candidates, or that the FDA will allow us to continue the development of our product candidates in those divisions where we maintain an active IND.
We are highly dependent on the success of our product candidates and cannot give any assurance that these or any future product candidates will be successfully commercialized.
We are a development-stage biopharmaceutical company, and do not currently have any commercial products that generate revenues or any other sources of revenue. We may never be able to successfully develop marketable products. Our pharmaceutical development methods are unproven and may not lead to commercially viable products for any of several reasons.
If we are unable to develop, or receive regulatory approval for or successfully commercialize any of our product candidates, we will not be able to generate product revenues. Even if we are able to develop or receive regulatory approval for or successfully commercialize any of our product candidates, we may not be able to gain market acceptance for our product candidates and future products and may never become profitable.
Because the results of preclinical studies and early clinical trials are not necessarily predictive of future results, any product candidate we advance into clinical trials may not have favorable results in later clinical trials, if any, or receive regulatory approval.
Pharmaceutical development has inherent risk. We will be required to demonstrate through adequate and well-controlled clinical trials that our product candidates are effective with a favorable benefit-risk profile for use in diverse populations for their target indications before we can seek regulatory approvals for their commercial sale. Success in early clinical trials does not mean that later clinical trials will be successful because product candidates in later-stage clinical trials may fail to demonstrate sufficient safety or efficacy despite having progressed through initial clinical testing. Companies frequently suffer significant setbacks in advanced clinical trials, even after earlier clinical trials have shown promising results. In addition, there is typically an extremely high rate of failure of pharmaceutical candidates proceeding through clinical trials.

We plan on conducting additional Phase I, II and III clinical trials for TG-1101 and TGR-1202. Early clinical results seen with TG-1101 and TGR-1202 in a small number of patients may not be reproduced in expanded or larger clinical trials. Additionally, individually reported outcomes of patients treated in clinical trials may not be representative of the entire population of treated patients in such studies. Further, larger scale Phase III studies, which are often conducted internationally, are inherently subject to increased operational risks compared to earlier stage studies, including the risk that the results could vary on a region to region, or country to country basis which could materially adversely affect the study’s outcome or the opinion of the validity of the study results by applicable regulatory agencies. Early clinical trial results from interim analysis or from the review of a Data Safety Monitoring Board (DSMB) or similar safety committee may not be reflective of the results of the entire study, when completed. Additionally, many of the results reported in our early clinical trials rely on local investigator assessed safety and efficacy outcomes which may differ from results assessed in a blinded, independent, centrally reviewed manner, often required of adequate and well controlled registration directed clinical trials which may be undertaken at a later date. If the results from expansion cohorts or later trials are different from those found in the earlier studies of TG-1101 and TGR-1202, we may need to terminate or revise our clinical development plan, which could extend the time for conducting our development program and could have a material adverse effect on our business. Our IRAK4, BTK, BET, and anti-GITR programs are all in pre-clinical development and no assurance can be given that they will advance into clinical development. If the results from additional pre-clinical studies or early clinical trials differ from those found in earlier studies, our clinical development plans and timelines for this program could be adversely affected which could have a material adverse effect on our business. Many drugs fail in the early stages of clinical development for safety and tolerability issues, accordingly if our pre-clinical assets advance into clinical development, no assurance can be made that a safe and efficacious dose can be found.

If we are unable to successfully complete our clinical trial programs, or if such clinical trials take longer to complete than we project, our ability to execute our current business strategy will be adversely affected.
Whether or not and how quickly we complete clinical trials is dependent in part upon the rate at which we are able to engage clinical trial sites and, thereafter, the rate of enrollment of patients, and the rate we collect, clean, lock and analyze the clinical trial database. Patient enrollment is a function of many factors, including the size of the patient population, the proximity of patients to clinical sites, the eligibility criteria for the study, the existence of competitive clinical trials, and whether existing or new drugs are approved for the indication we are studying. We are aware that other companies are currently conducting or planning clinical trials that seek to enroll patients with the same diseases that we are studying. Certain clinical trials are designed to continue until a pre-determined number of events have occurred in the patients enrolled. Trials such as this are subject to delays stemming from patient withdrawal and from lower than expected event rates. They may also incur additional costs if enrollment is increased in order to achieve the desired number of events. If we experience delays in identifying and contracting with sites and/or in patient enrollment in our clinical trial programs, we may incur additional costs and delays in our development programs, and may not be able to complete our clinical trials in a cost-effective or timely manner. In addition, conducting multi-national studies adds another level of complexity and risk. We are subject to events affecting countries outside the U.S. Negative or inconclusive results from the clinical trials we conduct or unanticipated adverse medical events could cause us to have to repeat or terminate the clinical trials.
In September 2015 we announced a Phase 3 clinical trial for the combination of TG-1101 + TGR-1202 for patients with CLL, which is being conducted pursuant to an SPA with the FDA and in August 2017 we announced an SPA for our registration program for TG-1101 in relapsing forms of MS. Many companies which have been granted SPAs and/or the right to utilize the FDA’s Fast Track or accelerated approval process have ultimately failed to obtain final approval to market their drugs. Since we are seeking approvals under SPAs for some of our product registration strategies, based on protocol designs negotiated with the FDA, we may be subject to enhanced scrutiny. Further, any changes or amendments to a protocol that is being conducted under SPA will have to be reviewed and approved by the FDA to verify that the SPA agreement is still valid. Even if the primary endpoint in a Phase 3 clinical trial is achieved, a SPA does not guarantee approval. The FDA may raise issues of safety, study conduct, bias, deviation from the protocol, statistical power, patient completion rates, changes in scientific or medical parameters or internal inconsistencies in the data prior to making its final decision. The FDA may also seek the guidance of an outside advisory committee prior to making its final decision.

The sufficiency of our GENUINE trial results for approval are subject to FDA’s discretion.
Obtaining accelerated approval for an agent requires demonstration of meaningful benefit over available therapies. While we believe we have an understanding of what is considered available therapy today, ultimately the determination of what constitutes available therapy is wholly up to the FDA and is subject to change. In October 2017, we announced the outcome of a meeting with the U.S. Food and Drug Administration (FDA) regarding the use of the results from the GENUINE Phase 3 trial to support a Biologics License Application (BLA) filing for accelerated approval of TG-1101 in combination with ibrutinib. As part of the discussion, the FDA also guided that if one or more agents obtained full approval before we could obtain accelerated approval, those agents could be considered available therapy, and we would need to show meaningful benefit over those agents as well. No assurance can be given that other agents will not receive full approval prior to our potential receipt of accelerated approval. If that were to occur, no assurance can be given that we would be successful in proving meaningful benefit over those later approved drugs. If we were unable to prove meaningful benefit over any such agents, we would be effectively blocked from receiving accelerated approval.
While we wait to see if any drugs receive full approval and can evaluate the data associated with any such agents, we are continuing to make preparations for a BLA filing for accelerated approval. Whether or not we ultimately file such application will be subject to multiple factors and no assurance can be given that a filing will be made. If a filing is made, the FDA acceptance of such a filing will depend on the FDA’s views on the adequacy of the filing, and further even if the filing is accepted, approval of such a filing is a question wholly within the FDA’s discretion to determine.  In addition, if we were to receive accelerated approval, we would be required to conduct a post-market confirmatory study, which we may not complete, or if completed, may prove unsuccessful. In such instance, the FDA can remove the product from the market.
The GENUINE study in its final form was not powered for progression-free survival (PFS). There can be no assurance given that we will reach agreement with the FDA on an acceptable use of PFS data from GENUINE to support approval of TG-1101, or even if an agreement is reached, that the PFS results of TG-1101 will be positive and/or sufficient to support a regulatory approval of TG-1101.
Any product candidates we may advance through clinical development are subject to extensive regulation, which can be costly and time consuming, cause unanticipated delays or prevent the receipt of the required approvals or “fast track” or “priority review” status to commercialize our product candidates.
The clinical development, manufacturing, labeling, storage, record-keeping, advertising, promotion, import, export, marketing and distribution of our product candidates or any future product candidates are subject to extensive regulation by the FDA in the United States and by comparable health authorities worldwide or in foreign markets. In the United States, we are not permitted to market our product candidates until we receive approval of a BLA or NDA from the FDA. The process of obtaining BLA and NDA approval is expensive, often takes many years and can vary substantially based upon the type, complexity and novelty of the products involved. Approval policies or regulations may change and the FDA has substantial discretion in the pharmaceutical approval process, including the ability to delay, limit or deny approval of a product candidate for many reasons. Even with “fast track” or “priority review” status which we intend to seek for our product candidates, where possible, including with regard to TG-1101, such designations do not necessarily mean a faster development process or regulatory review process or necessarily confer any advantage with respect to approval compared to conventional FDA procedures. In addition, the FDA may require post-approval clinical trials or studies which also may be costly. The FDA approval for a limited indication or approval with required warning language, such as a boxed warning, could significantly impact our ability to successfully market our product candidates. Finally, the FDA may require adoption of a Risk Evaluation and Mitigation Strategy (“REMS”) requiring prescriber training, post-market registries, or otherwise restricting the marketing and dissemination of these products. Despite the time and expense invested in clinical development of product candidates, regulatory approval is never guaranteed. Assuming successful clinical development, we intend to seek product approvals in countries outside the United States. As a result, we would be subject to regulation by the European Medicines Agency (“EMA”), as well as the other regulatory agencies in many of these countries, and other regulatory agencies around the world.

                Approval procedures vary among countries and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries might differ from that required to obtain FDA approval. Regulatory approval in one country does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country may negatively impact the regulatory process in others. As in the United States, the regulatory approval process in Europe and in other countries is a lengthy and challenging process. The FDA, and any other regulatory body around the world can delay, limit or deny approval of a product candidate for many reasons, including:
the FDA 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 or comparable foreign regulatory authorities that a product candidate is safe and effective for any indication;
the FDA may not accept clinical data from trials which are conducted by individual investigators or in countries where the standard of care is potentially different from the United States;
the results of clinical trials may not meet the level of statistical significance required by the FDA or comparable foreign regulatory authorities for approval;
we may be unable to demonstrate that a product candidate's clinical and other benefits outweigh its safety risks;
the FDA or comparable foreign regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials;
the data collected from clinical trials of our product candidates may not be sufficient to support the submission of a BLA, NDA or other submission or to obtain regulatory approval in the United States or elsewhere;
the FDA or comparable foreign regulatory authorities may fail to approve the manufacturing processes or facilities of third-party manufacturers with which we or our collaborators contract for clinical and commercial supplies; or
the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval.
In addition, recent events raising questions about the safety of certain marketed pharmaceuticals may result in increased cautiousness by the FDA and other regulatory authorities in reviewing new pharmaceuticals based on safety, efficacy or other regulatory considerations and may result in significant delays in obtaining regulatory approvals. Regulatory approvals for our product candidates may not be obtained without lengthy delays, if at all. Any delay in obtaining, or inability to obtain, applicable regulatory approvals would prevent us from commercializing our product candidates.
Any product candidate we advance into clinical trials may cause unacceptable adverse events or have other properties that may delay or prevent their regulatory approval or commercialization or limit their commercial potential.
Unacceptable adverse events caused by any of our product candidates that we take into clinical trials could cause either us or regulatory authorities to interrupt, delay, modify or halt clinical trials and could result in the denial of regulatory approval by the FDA or other regulatory authorities for any or all targeted indications. This, in turn, could prevent us from commercializing the affected product candidate and generating revenues from its sale.

We have not completed testing of any of our product candidates for the treatment of the indications for which we intend to seek product approval in humans, and we currently do not know the extent that adverse events, if any, will be observed in patients who receive any of our product candidates. To date, clinical trials using TG-1101 and TGR-1202 have demonstrated a toxicity profile that was deemed acceptable by the investigators performing such studies. Such interpretation may not be shared by future investigators or by the FDA and in the case of TG-1101 and TGR-1202, even if deemed acceptable for oncology applications, it may not be acceptable for diseases outside the oncology setting, and likewise for any other product candidates we may develop. Additionally, the severity, duration and incidence of adverse events may increase in larger study populations. With respect to both TG-1101 and TGR-1202, the toxicity when manufactured under different conditions and in different formulations is not known, and it is possible that additional and/or different adverse events may appear upon the human use of those formulations and those adverse events may arise with greater frequency, intensity and duration than in the current formulation. Should the Company not be able to adequately demonstrate analytical comparability between drug product manufactured under different conditions, the introduction of such new drug product into ongoing trials also has the potential to confound the interpretation of the results or complicate the statistical analysis of such trial. Further, with respect to TGR-1202, although approximately one thousand patients have been dosed amongst all ongoing TGR-1202 studies, the full adverse effect profile of TGR-1202 is not known. It is also unknown as additional patients are exposed for longer durations to TGR-1202, whether greater frequency and/or severity of adverse events are likely to occur. Common toxicities of other drugs in the same class as TGR-1202 include high levels of liver toxicity, infections and colitis, the latter of which notably has presented with later onset, with incidence increasing with duration of exposure. To date, the incidence of these events has been limited for TGR-1202, however no assurance can be given that this safety and tolerability profile will continue to be demonstrated in the future as higher doses, longer durations of exposure, and multiple drug combinations are explored. If any of our product candidates cause unacceptable adverse events in clinical trials, we may not be able to obtain marketing approval and generate revenues from its sale, or even if approved for sale may lack differentiation from competitive products, which could have a material adverse impact on our business and operations.
               Additionally, in combination clinical development, there is an inherent risk of drug-drug interactions between combination agents which may affect each component’s individual pharmacologic properties and the overall efficacy and safety of the combination regimen. Both TG-1101 and TGR-1202 are being evaluated in combination together, as well as with a variety of other active anti-cancer agents, which may cause unforeseen toxicity, or impact the severity, duration, and incidence of adverse events observed compared to those seen in the single agent studies of these agents. Further, with multi-drug combinations, it is often difficult to interpret or properly assign attribution of an adverse event to any one particular agent, introducing the risk that toxicity caused by a component of a combination regimen could have a material adverse impact on the development of our product candidates. There can be no assurances given that the combination regimens being studied will display tolerability or efficacy suitable to warrant further testing or produce data that is sufficient to obtain marketing approval.
               If any of our product candidates receives marketing approval and we, or others, later identify unacceptable adverse events caused by the product, a number of significant negative consequences could result, including:
regulatory authorities may withdraw their approval of the affected product;
regulatory authorities may require a more significant clinical benefit for approval to offset the risk;
regulatory authorities may require the addition of labeling statements that could diminish the usage of the product or otherwise limit the commercial success of the affected product;
we may be required to change the way the product is administered, conduct additional clinical trials or change the labeling of the product;
we may choose to discontinue sale of the product;
we could be sued and held liable for harm caused to patients;
we may not be able to enter into collaboration agreements on acceptable terms and execute on our business model; and
our reputation may suffer.
Any one or a combination of these events could prevent us from obtaining or maintaining regulatory approval and achieving or maintaining market acceptance of the affected product or could substantially increase the costs and expenses of commercializing the affected product, which in turn could delay or prevent us from generating any revenues from the sale of the affected product.

We may experience delays in the commencement of our clinical trials or in the receipt of data from preclinical and clinical trials conducted by third parties, which could result in increased costs and delay our ability to pursue regulatory approval.
Delays in the commencement of clinical trials and delays in the receipt of data from preclinical or clinical trials conducted by third parties could significantly impact our product development costs. Before we can initiate clinical trials in the United States for our product candidates, we need to submit the results of preclinical testing, usually in animals, to the FDA as part of an IND, along with other information including information about product chemistry, manufacturing and controls and its proposed clinical trial protocol for our product candidates.
We plan to rely on preclinical and clinical trial data from third parties, if any, for the IND submissions for our product candidates. If receipt of that data is delayed for any reason, including reasons outside of our control, it will delay our plans for IND filings, and clinical trial plans. This, in turn, will delay our ability to make subsequent regulatory filings and ultimately, to commercialize our products if regulatory approval is obtained. If those third parties do not make this data available to us, we will likely, on our own, have to develop all the necessary preclinical and clinical data which will lead to additional delays and increase the costs of our development of our product candidates.
Before we can test any product candidate in human clinical trials the product candidate enters the preclinical testing stage. Preclinical tests include laboratory evaluations of product chemistry, toxicity and formulation, as well as in-vitro and animal studies to assess the potential safety and activity of the pharmaceutical product candidate. The conduct of the preclinical tests must comply with federal regulations and requirements including good laboratory practices (“GLP”).
We must submit the results of the preclinical tests, together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the FDA as part of the IND. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA places the IND on a clinical hold within that 30-day time period. In such a case, we must work with the FDA to resolve any outstanding concerns before the clinical trials can begin. The FDA may also impose clinical holds on a product candidate at any time before or during clinical trials due to safety concerns or non-compliance. Accordingly, we cannot be sure that submission of an IND will result in the FDA allowing clinical trials to begin, or that, once begun, issues will not arise that suspend or terminate such clinical trial.
The FDA may require that we conduct additional preclinical testing for any product candidate before it allows us to initiate the clinical testing under any IND, which may lead to additional delays and increase the costs of our preclinical development.
Even assuming an active IND for a product candidate, we do not know whether our planned clinical trials for any such product candidate will begin on time, or at all. The commencement of clinical trials can be delayed for a variety of reasons, including delays in:
obtaining regulatory clearance to commence a clinical trial;
identifying, recruiting and training suitable clinical investigators;
reaching agreement on acceptable terms with prospective contract research organizations (“CROs”) and trial sites, the terms of which can be subject to extensive negotiation, may be subject to modification from time to time and may vary significantly among different CROs and trial sites;
obtaining sufficient quantities of a product candidate for use in clinical trials;
obtaining institutional review board (“IRB”) or ethics committee approval to conduct a clinical trial at a prospective site;
identifying, recruiting and enrolling patients to participate in a clinical trial;
retaining patients who have initiated a clinical trial but may withdraw due to adverse events from the therapy, insufficient efficacy, fatigue with the clinical trial process or personal issues; and
unexpected safety findings.
Any delays in the commencement of our clinical trials will delay our ability to pursue regulatory approval for our product candidates. In addition, many of the factors that cause, or lead to, a delay in the commencement of clinical trials may also ultimately lead to the denial of regulatory approval of a product candidate.

Delays in the completion of clinical testing could result in increased costs and delay our ability to generate product revenues.
Once a clinical trial has begun, patient recruitment and enrollment may be slower than we anticipate. Clinical trials may also be delayed as a result of ambiguous or negative interim results. Further, a clinical trial may be suspended or terminated by us, an IRB, an ethics committee or a Data Safety and Monitoring Committee overseeing the clinical trial, any of our clinical trial sites with respect to that site or the FDA or other regulatory authorities 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 clinical trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold;
unforeseen safety issues or any determination that the clinical trial presents unacceptable health risks; and
lack of adequate funding to continue the clinical trial.
Changes in regulatory requirements and guidance also may occur and we may need to amend clinical trial protocols to reflect these changes. Amendments may require us to resubmit our clinical trial protocols to IRBs for re-examination, which may impact the costs, timing and successful completion of a clinical trial. If we experience delays in the completion of, or if we must terminate, any clinical trial of any product candidate that we advance into clinical trials, our ability to obtain regulatory approval for that product candidate will be delayed and the commercial prospects, if any, for the product candidate may be harmed. In addition, many of these factors may also ultimately lead to the denial of regulatory approval of a product candidate. Even if we ultimately commercialize any of our product candidates, other therapies for the same indications may have been introduced to the market during the period we have been delayed and such therapies may have established a competitive advantage over our product candidates.
We intend to rely on third parties to help conduct our planned clinical trials. If these third parties do not meet their deadlines or otherwise conduct the trials as required, we may not be able to obtain regulatory approval for or commercialize our product candidates when expected or at all.
We intend to use CROs to assist in the conduct of our planned clinical trials and will rely upon medical institutions, clinical investigators and contract laboratories to conduct our trials in accordance with our clinical protocols. Our future CROs, investigators and other third parties may play a significant role in the conduct of these trials and the subsequent collection and analysis of data from the clinical trials.
There is no guarantee that any CROs, investigators and other third parties will devote adequate time and resources to our clinical trials or perform as contractually required. If any third parties upon whom we rely for administration and conduct of our clinical trials fail to meet expected deadlines, fail to adhere to its clinical protocols or otherwise perform in a substandard manner, our clinical trials may be extended, delayed or terminated, and we may not be able to commercialize our product candidates.
If any of our clinical trial sites terminate for any reason, we may experience the loss of follow-up information on patients enrolled in our ongoing clinical trials unless we are able to transfer the care of those patients to another qualified clinical trial site. In addition, principal investigators for our clinical trials may serve as scientific advisors or consultants to us from time to time and receive cash or equity compensation in connection with such services. If these relationships and any related compensation result in perceived or actual conflicts of interest, the integrity of the data generated at the applicable clinical trial site may be jeopardized.
As all of our product candidates are still under development, manufacturing and process improvements implemented in the production of those product candidates may affect their ultimate activity or function.
Our product candidates are in the initial stages of development and are currently manufactured in small batches for use in pre-clinical and clinical studies. Process improvements implemented to date have changed, and process improvements in the future may change, the activity profile of the product candidates, which may affect the safety and efficacy of the products. No assurance can be given that the material manufactured from any of the optimized processes will perform comparably to the product candidates as manufactured to date and used in currently available pre-clinical data and or in early clinical trials reported in this or any previous filing. Additionally, future clinical trial results will be subject to the same level of uncertainty if, following such trials, additional process improvements are made. In addition, we have engaged a secondary manufacturer for TG-1101 to meet our current clinical and future commercial needs and anticipate engaging additional manufacturing sources for TGR-1202 to meet expanded clinical trial and commercial needs. While material produced from this secondary manufacturer for TG-1101 has to date demonstrated acceptable comparability to enable introduction into our clinical trials, no assurance can be given that any additional manufacturers will be successful or that material manufactured by the additional manufacturers will perform comparably to TG-1101 or TGR-1202 as manufactured to date and used in currently available pre-clinical data and or in early clinical trials reported in this or any previous filing, or that the relevant regulatory agencies will agree with our interpretation of comparability. If a secondary manufacturer is not successful in replicating the product or experiences delays, or if regulatory authorities impose unforeseen requirements with respect to product comparability from multiple manufacturing sources, we may experience delays in clinical development.

If we fail to adequately understand and comply with the local laws and customs as we expand into new international markets, these operations may incur losses or otherwise adversely affect our business and results of operations.
We expect to operate a portion of our business in certain countries through subsidiaries or through supply and marketing arrangements. In those countries, where we have limited experience in operating subsidiaries and in reviewing equity investees, we will be subject to additional risks related to complying with a wide variety of national and local laws, including restrictions on the import and export of certain intermediates, drugs, technologies and multiple and possibly overlapping tax structures. In addition, we may face competition in certain countries from companies that may have more experience with operations in such countries or with international operations generally. We may also face difficulties integrating new facilities in different countries into our existing operations, as well as integrating employees hired in different countries into our existing corporate culture. If we do not effectively manage our operations in these subsidiaries and review equity investees effectively, or if we fail to manage our alliances, we may lose money in these countries and it may adversely affect our business and results of our operations. In all interactions with foreign regulatory authorities, the Company is exposed to liability risks under the Foreign Corrupt Practices Act or similar anti-bribery laws.
If our competitors develop treatments for the target indications for which any of our product candidates may be approved, and they are approved more quickly, marketed more effectively or demonstrated to be more effective than our product candidates, our commercial opportunity will be reduced or eliminated.
We operate in a highly competitive segment of the biotechnology and biopharmaceutical market. We face competition from numerous sources, including commercial pharmaceutical and biotechnology enterprises, academic institutions, government agencies, and private and public research institutions. Many of our competitors have significantly greater financial, product development, manufacturing and marketing resources. Large pharmaceutical companies have extensive experience in clinical testing and obtaining regulatory approval for drugs. Additionally, many universities and private and public research institutes are active in cancer research, some in direct competition with us. We may also compete with these organizations to recruit scientists and clinical development personnel. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies.
The cancer indications for which we are developing our products have a number of established therapies with which we will compete. Most major pharmaceutical companies and many biotechnology companies are aggressively pursuing new cancer development programs for the treatment of NHL, CLL, and other B-cell proliferative malignancies, including both therapies with traditional, as well as novel, mechanisms of action. Additionally, numerous established therapies exist for the autoimmune disorders for which we are developing TG-1101, including and in particular, multiple sclerosis (MS).
If approved, we expect TG-1101 to compete directly with Roche Group’s Rituxan® (rituximab) and Gazyva® (obinutuzumab or GA-101), and Novartis’ Arzerra® (ofatumumab) among others, each of which is currently approved for the treatment of various diseases including NHL and CLL. In addition, a number of pharmaceutical companies are developing antibodies targeting CD20, CD19, and other B-cell associated targets, chimeric antigen receptor T-cell (CAR-T) immunotherapy, and other B-cell ablative therapy which, if approved, would potentially compete with TG-1101 both in oncology settings as well as in autoimmune disorders. In 2017, the Roche Group’s anti-CD20 antibody ocrelizumab was approved for the treatment of MS. Genmab and GSK’s (ofatumumab) is also under clinical development for patients with MS. New developments, including the development of other pharmaceutical technologies and methods of treating disease, occur in the pharmaceutical and life sciences industries at a rapid pace.
With respect to TGR-1202, there are several PI3K delta targeted compounds both approved, such as Gilead’s Zydelig® (idelalisib) and Bayer’s Aliqopa™ (copanlisib), and in development, including, but not limited to, Verastem’s duvelisib which if approved we would expect to compete directly with TGR-1202. In addition, there are numerous other novel therapies targeting similar pathways to TGR-1202 both approved and in development, which could also compete with TGR-1202 in similar indications, such as the BTK inhibitor, ibrutinib (FDA approved for MCL, CLL, Marginal Zone Lymphoma and WM and marketed by AbbVie and Janssen), the BTK inhibitor acalabrutinib (FDA approved for MCL and marketed by AstraZeneca), or the BCL-2 inhibitor venetoclax (FDA approved for CLL and marketed by AbbVie and Roche).

                These developments may render our product candidates obsolete or noncompetitive. Compared to us, many of our potential competitors have substantially greater:
research and development resources, including personnel and technology;
regulatory experience;
pharmaceutical development, clinical trial and pharmaceutical commercialization experience;
experience and expertise in exploitation of intellectual property rights; and
capital resources.

As a result of these factors, our competitors may obtain regulatory approval of their products more rapidly than us or may obtain patent protection or other intellectual property rights that limit our ability to develop or commercialize our product candidates. Our competitors may also develop products for the treatment of lymphoma, CLL, or other B-cell and autoimmune related disorders that are more effective, better tolerated, more useful and less costly than ours and may also be more successful in manufacturing and marketing their products. Our competitors may succeed in obtaining approvals from the FDA and foreign regulatory authorities for their product candidates sooner than we do for our products.
We will also face competition from these third parties in recruiting and retaining qualified personnel, establishing clinical trial sites and enrolling patients for clinical trials and in identifying and in-licensing new product candidates.
We rely completely on third parties to manufacture our preclinical and clinical pharmaceutical supplies and we intend to rely on third parties to produce commercial supplies of any approved product candidate, and our commercialization of any of our product candidates could be stopped, delayed or made less profitable if those third parties fail to obtain approval of the FDA, fail to provide us with sufficient quantities of pharmaceutical product or fail to do so at acceptable quality levels or prices.
The facilities used by our contract manufacturers to manufacture our product candidates must be approved by the FDA pursuant to inspections that will be conducted only after we submit a BLA or NDA to the FDA, if at all. We do not control the manufacturing process of our product candidates and are completely dependent on our contract manufacturing partners for compliance with the FDA’s requirements for manufacture of finished pharmaceutical products (good manufacturing practices, GMP). If our contract manufacturers cannot successfully manufacture material that conforms to our target product specifications, patent specifications, and/or the FDA’s strict regulatory requirements of safety, purity and potency, we will not be able to secure and/or maintain FDA approval for our product candidates. In addition, we have no control over the ability of our contract manufacturers to maintain adequate quality control, quality assurance and qualified personnel. If our contract manufacturers cannot meet FDA standards, we may need to find alternative manufacturing facilities, which would significantly impact our ability to develop, obtain regulatory approval for or market our product candidates. No assurance can be given that a long-term, scalable manufacturer can be identified or that they can make clinical and commercial supplies of our product candidates that meets the product specifications of previously manufactured batches, or is of a sufficient quality, or at an appropriate scale and cost to make it commercially feasible. If they are unable to do so, it could have a material adverse impact on our business.
In addition, we do not have the capability to package finished products for distribution to hospitals and other customers. Prior to commercial launch, we intend to enter into agreements with one or more alternate fill/finish pharmaceutical product suppliers so that we can ensure proper supply chain management once we are authorized to make commercial sales of our product candidates. If we receive marketing approval from the FDA, we intend to sell pharmaceutical product finished and packaged by such suppliers. We have not entered into long-term agreements with our current contract manufacturers or with any fill/finish suppliers, and though we intend to do so prior to commercial launch of our product candidates in order to ensure that we maintain adequate supplies of finished product, we may be unable to enter into such an agreement or do so on commercially reasonable terms, which could have a material adverse impact upon our business.

In most cases, our manufacturing partners are single source suppliers. It is expected that our manufacturing partners will be sole source suppliers from single site locations for the foreseeable future. Given this, any disruption of supply from these partners could have a material, long-term impact on our ability to supply products for clinical trials or commercial sale. If our suppliers do not deliver sufficient quantities of our product candidates on a timely basis, or at all, and in accordance with applicable specifications, there could be a significant interruption of our supply, which would adversely affect clinical development and commercialization of our products. In addition, if our current or future supply of any or our product candidates should fail to meet specifications during its stability program there could be a significant interruption of our supply of drug, which would adversely affect the clinical development and commercialization of the product.
Our product candidates may compete with other product candidates and products for access to manufacturing facilities. There are a limited number of manufacturers that operate under cGMP regulations and that might be capable of manufacturing for us. Any performance failure on the part of our existing or future manufacturers could delay clinical development or marketing approval. We do not currently have arrangements in place for redundant supply or a second source for bulk drug substance. If our current contract manufacturers cannot perform as agreed, we may be required to replace such manufacturers. We may incur added costs and delays in identifying and qualifying any replacement manufacturers.
Our current and anticipated future dependence upon others for the manufacture of our product candidates or products may adversely affect our future profit margins and our ability to commercialize any products that receive marketing approval on a timely and competitive basis.
We also expect to rely on other third parties to store and distribute drug supplies for our clinical trials. Any performance failure on the part of our distributors could delay clinical development or marketing approval of any future product candidates or commercialization of our products, producing additional losses and depriving us of potential product revenue.
We currently have no marketing and sales organization and no experience in marketing pharmaceutical products. If we are unable to establish sales and marketing capabilities or fail to enter into agreements with third parties to market and sell any products we may develop, we may not be able to effectively market and sell our products and generate product revenue.
We do not currently have the infrastructure for the sales, marketing and distribution of our biotechnology products, and we must build this infrastructure or make arrangements with third parties to perform these functions in order to commercialize our products. We plan to either develop internally or enter into collaborations or other commercial arrangements to develop further, promote and sell all or a portion of our product candidates.
The establishment and development of a sales force, either by us or jointly with a development partner, or the establishment of a contract sales force to market any products we may develop will be expensive and time-consuming and could delay any product launch, and we cannot be certain that we or our development partners would be able to successfully develop this capability. If we or our development partners are unable to establish sales and marketing capability or any other non-technical capabilities necessary to commercialize any products we may develop, we will need to contract with third parties to market and sell such products. We currently possess limited resources and may not be successful in establishing our own internal sales force or in establishing arrangements with third parties on acceptable terms, if at all.
We may seek to establish additional collaborations and, if we are not able to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans.
Any future product candidate development programs and the potential commercialization of our product candidates will require substantial additional cash to fund expenses. For any current or future product candidates, we may decide to collaborate with additional pharmaceutical and biotechnology companies for the development and potential commercialization of those product candidates.

We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for any additional collaborations will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by FDA or similar regulatory authorities outside the United States, the potential market for the subject product candidate, the costs and complexities of manufacturing and delivering such product candidate to patients, the potential of competing drugs, the existence of uncertainty with respect to our ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge and industry and market conditions generally. The collaborator may also consider alternative product candidates or technologies for similar indications that may be available to collaborate on and whether such a collaboration could be more attractive than the one with us for any future product candidate. The terms of any additional collaborations or other arrangements that we may establish may not be favorable to us.
We may not be able to negotiate additional collaborations on a timely basis, on acceptable terms, or at all. Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators. If we are unable to negotiate and enter into new collaborations, we may have to curtail the development of the product candidate for which we are seeking to collaborate, reduce or delay its development program or reduce or delay any other future development programs.

If conflicts arise between us and our future collaborators or strategic partners, these parties may act in a manner adverse to us and could limit our ability to implement our strategies.

If conflicts arise between our future corporate or academic collaborators or strategic partners and us, the other party may act in a manner adverse to us and could limit our ability to implement our strategies. Future collaborators or strategic partners, may develop, either alone or with others, products in related fields that are competitive with the products or potential products that are the subject of these collaborations. Competing products, either developed by the collaborators or strategic partners or to which the collaborators or strategic partners have rights, may result in the withdrawal of partner support for any future product candidates. Our current or future collaborators or strategic partners may preclude us from entering into collaborations with their competitors, fail to obtain timely regulatory approvals, terminate their agreements with us prematurely, or fail to devote sufficient resources to the development and commercialization of products. Any of these developments could harm any future product development efforts.

We may seek to establish additional collaborations, and, if we are not able to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans.

Our drug development programs and the potential commercialization of our drug candidates will require substantial additional cash to fund expenses. For some of our drug candidates, we may decide to collaborate with additional pharmaceutical and biotechnology companies for the development and potential commercialization of those drug candidates.

We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for a collaboration will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration, and the proposed collaborator’s evaluation of a number of factors. Those factors may include the design or results of our clinical trials, the likelihood of approval by the FDA or similar regulatory authorities outside the United States, the potential market for the subject product candidate, the costs and complexities of manufacturing and delivering such product candidate to patients, the potential of competing drugs, the existence of uncertainty with respect to our ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge, and industry and market conditions generally. The collaborator may also consider alternative product candidates or technologies for similar indications that may be available to collaborate on and whether such a collaboration could be more attractive than the one with us for our product candidate. The terms of any additional collaborations or other arrangements that we may establish may not be favorable to us.

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We willmay be restricted under our collaboration agreements from entering into future agreements on certain terms with potential collaborators. Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators.

We may not be able to negotiate additional collaborations on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of the product candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other development programs, delay its potential commercialization or reduce the scope of any 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 FDA approvaladditional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our product candidates or bring them to market and generate revenue from their sales.

Any future collaborations that we enter into may not be successful. The success of our collaboration arrangements will depend heavily on the efforts and activities of our collaborators. Collaborators generally have significant discretion in determining the efforts and resources that they will apply to these collaborations. Disagreements between parties to a collaboration arrangement regarding clinical development and commercialization matters can lead to delays in the development process or commercializing the applicable product candidate and, in some cases, termination of the collaboration arrangement. These disagreements can be difficult to resolve if neither of the parties has final decision-making authority. Collaborations with pharmaceutical or biotechnology companies and other third parties often are terminated or allowed to expire by the other party. Any termination or expiration of any proposed product brand names,future collaboration agreement could adversely affect us financially or harm our business reputation.

Risks Relating to Our Intellectual Property

Our success depends upon our ability to obtain and any failureprotect our intellectual property and proprietary technologies and if the scope of our patent protection obtained is not sufficiently broad, our competitors could develop and commercialize technology and drugs similar or delay associated with such approvalidentical to ours, and our ability to successfully commercialize our technology and drugs may adversely impact our business.

A pharmaceutical product candidate cannot be marketedimpaired.

Our commercial success in part depends on obtaining and maintaining patent protection and trade secret protection in the United States orand other countries until we have completed a rigorous and extensive regulatory review processes, including approval of a brand name. Any brand names we intend to use for TG-1101, TGR-1202 or any future product candidates will require approval from the FDA regardless of whether we have secured a formal trademark registration from the U.S. Patent and Trademark Office, or USPTO. The FDA typically conducts a review of proposed product brand names, including an evaluation of potential for confusion with other product names. The FDA may also object to a product brand name if it believes the name inappropriately implies medical claims. If the FDA objectsrespect to any of our proposed product brand names, we may be required to adopt an alternative brand name for TG-1101, TGR-1202 or any future product candidates. If we adopt an alternative brand name, we would lose the benefit of our existing trademark applications for such product candidate and may be required to expend significant additional resources in an effort to identify a suitable product brand name that would qualify under applicable trademark laws, not infringe the existing rights of third parties and be acceptable to the FDA. We may be unable to build a successful brand identity for a new trademark in a timely manner or at all, which would limit our ability to commercialize, TG-1101, TGR-1202, or any future product candidates.


If any product candidate that we successfully develop does not achieve broad market acceptance among physicians, patients, healthcare payors, and the medical community, the revenues that we generate from its sales will be limited.
Even if including UKONIQ, our product candidates, receive regulatory approval, they may not gain market acceptance among physicians, patients, healthcare payors,their formulations and uses and the medical community. Coveragemethods we use to manufacture them, as well as successfully defending these patents against third-party challenges. We seek to protect our proprietary and reimbursementintellectual property position by filing patent applications in the United States and abroad related to our novel technologies and product candidates, and by maintenance of our trade secrets through proper procedures.  Because we in-license our products and product candidates, by third-party payors, including government payors, generally iswe also rely on our licensors to protect the patent and other intellectual property rights necessary for commercial success.commercialization.  

We will only be able to protect our technologies from unauthorized use by third parties to the extent that valid and enforceable patents or trade secrets cover them in the market they are being used or developed. The degree of market acceptance of any ofpatent protection we require to successfully commercialize our approved products will depend on a number of factors, including:

the efficacy and safety as demonstrated in clinical trials;
the clinical indications for which the product is approved;
acceptance by physicians, major operators of cancer clinics and patients of the product as a safe and effective treatment;
the potential and perceived advantages of product candidates over alternative treatments;
the safety of product candidates seen in a broader patient group, including its use outside the approved indications;
the cost of treatment in relation to alternative treatments;
the availability of adequate reimbursement and pricing by third parties and government authorities;
relative convenience and ease of administration;
the prevalence and severity of adverse events; and
the effectiveness of our sales and marketing efforts.
If any product candidate is approved but does not achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, we may not generate sufficient revenue from these products and we may not become or remain profitable.
If the market opportunities for our product candidates are smaller than we believe they are, even assuming approval of a drug candidate, our business may suffer.
Our projections of both the number of people who are affected by disease within our target indications, as well as the subset of these people who have the potential to benefit from treatment with our product candidates, are based on our beliefs and estimates. These estimates have been derived from a variety of sources, including the scientific literature, healthcare utilization databases and market research, and may prove to be incorrect. Further, new studies may change the estimated incidence or prevalence of these diseases. The number of patients may turn out to be lower than expected. Likewise, the potentially addressable patient population for each of our product candidates may be unavailable or severely limited orin some cases and may not be amenableadequately protect our rights or permit us to treatmentgain or keep any competitive advantage. We cannot provide any assurances that any of our patents have, or that any of our pending patent applications that mature into issued patents will include, claims with a scope sufficient to protect any of our product candidates, and new patientsproducts. In addition, the laws of foreign countries may become increasingly difficultnot protect our rights to identify or gain access to, which would adversely affect our resultsthe same extent as the laws of operations and our business.
If product liability lawsuits are brought against us, we may incur substantial liabilities andthe United States.

Furthermore, patents have a limited lifespan. In the United States, the natural expiration of a patent is generally twenty years after it is filed. Various extensions may be available; however, the life of a patent, and the protection it affords, is limited. Given the amount of time required for the development, testing and regulatory review of new drug candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our owned patent portfolio may not provide us with adequate and continuing patent protection sufficient to limit commercialization of our product candidates.

We face an inherent risk of product liability exposure relatedexclude others from commercializing drugs similar or identical to the testing of our product candidates, in human clinical trials,including generic versions of such drugs.

Currently, the composition of matter patent for ublituximab and will face an even greater risk if we sell our product candidates commercially. Although weUKONIQ are not aware of any historical or anticipated product liability claims against us, if we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to cease clinical trials of our drug candidates or limit commercialization of any approved products. An individual may bring a liability claim against us if one of our product candidates causes, or merely appears to have caused, an injury. If we cannot successfully defend our self against product liability claims, we will incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

decreased demand for our product candidates;
impairment to our business reputation;
withdrawal of clinical trial participants;
costs of related litigation;
distraction of management’s attention from our primary business;
substantial monetary awards to patients or other claimants;
the inability to commercialize our product candidates; and
loss of revenues.

We believe that we have obtained sufficient product liability insurance coverage for our clinical trials. We intend to expand our insurance coverage to include the sale of commercial products if marketing approval is obtained for any of our product candidates. However, we may be unable to obtain this product liability insurance on commercially reasonable terms and with insurance coverage that will be adequate to satisfy any liability that may arise. On occasion, large judgments have been awarded in class action or individual lawsuits relating to marketed pharmaceuticals. A successful product liability claim or series of claims brought against us could cause our stock price to decline and, if judgments exceed our insurance coverage, could decrease our cash and adversely affect our business.
Reimbursement may be limited or unavailable in certain market segments for our product candidates, which could make it difficult for us to sell our products profitably.
We intend to seek approval to market our future productsgranted in both the United States and in countriesEU, among other countries. A method of use patent covering the combination of ublituximab and territories outsideUKONIQ has also been granted in the United States. If we obtain approval in one or more foreign countries, we will be subject to rules and regulations in those countries relating to our product. In some foreign countries, particularly in theStates, European Union, the pricingJapan, and several other territories. Additionally, several method of prescription pharmaceuticalsuse patents for ublituximab and biologics is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approvalUKONIQ in various indications and settings have also been applied for a product candidate. In addition, market acceptance and sales of our product candidates will depend significantly on the availability of adequate coverage and reimbursement from third-party payors for any of our product candidates and may be affected by existing and future healthcare reform measures.
Government authorities and third-party payors,but have not yet been issued or have been issued in certain territories but not under all jurisdictions in which such as private health insurers and health maintenance organizations, decide which pharmaceuticals they will pay for and establish reimbursement levels. Reimbursement by a third-party payor may depend upon a number of factors, including the third-party payor’s determination that use of a product is:
a covered benefit under its health plan;
safe, effective and medically necessary;
appropriate for the specific patient;
cost-effective; and
neither experimental nor investigational.
Obtaining coverage and reimbursement approval for a product from a government or other third-party payor is a time consuming and costly process that could require that we provide supporting scientific, clinical and cost-effectiveness data for the use of our products to the payor. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. If reimbursement of our future products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability. Additionally, while we may seek approval of our products in combination with each other, thereapplications have been filed. There can be no guarantee that any patents for which an application has already been filed, nor any patents filed in the future, for cosibelimab, TG-1701 and TG-1801 or for our pre-clinical product candidates will be

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granted in any or all jurisdictions in which they were filed, or that all claims initially included in such patent applications will be allowed in the final patent that is issued. The patent application process is subject to numerous risks and uncertainties, and there can be no assurance that we or our partners will obtain coveragebe successful in protecting our product candidates by obtaining and reimbursement for anydefending patents, or what the scope of an issued patent may ultimately be.

These risks and uncertainties include the following:

the patent applications that we or our licensors file may not result in any patents being issued;
patents that may be issued or in-licensed may be challenged, invalidated, modified, revoked or circumvented, or otherwise may not provide any competitive advantage;
as of March 16, 2013, the United States converted from a first to invent to a first to file system. If we do not win the filing race, we will not be entitled to inventive priority;
our competitors, many of which have substantially greater resources than we do, and many of which have made significant investments in competing technologies, may seek, or may already have obtained, patents that will limit, interfere with, or eliminate its ability to file new patent applications or make, use, and sell our potential products either in the United States or in international markets;
there may be significant pressure on the United States government and other international governmental bodies to limit the scope of patent protection both inside and outside the United States for disease treatments that prove successful as a matter of public policy regarding worldwide health concerns; and
countries other than the United States may have less restrictive patent laws than those upheld by United States courts, allowing foreign competitors the ability to exploit these laws to create, develop, and market competing products.

If patents are not issued that protect our products together, or that such reimbursement will incentivize the use of our products in combination with each other as opposed to in combination with other agents which may be priced more favorably to the medical community.

In both the United States and certain foreign countries, there have been a number of legislative and regulatory changes to the healthcare system that could impact our ability to sell our products profitably. In particular, the Medicare Modernization Act of 2003 revised the payment methodology for many products reimbursed by Medicare, resulting in lower rates of reimbursement for many types of drugs, and added a prescription drug benefit to the Medicare program that involves commercial plans negotiating drug prices for their members. Since 2003, there have been a number of other legislative and regulatory changes to the coverage and reimbursement landscape for pharmaceuticals.

Most recently, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, collectively, the “ACA,” was enacted. The ACA and any revisions or replacements of that Act, any substitute legislation, and other changes in the law or regulatory frameworkproduct candidates, it could have a material adverse effect on our business.
Amongfinancial condition and results of operations.

In addition, the provisionspatent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. Further, with respect to some of the ACApending patent applications covering our drug candidates, prosecution has yet to commence. Patent prosecution is a lengthy process, during which the scope of importancethe claims initially submitted for examination by the USPTO have been significantly narrowed by the time they issue, if at all. It is also possible that we will fail to identify any patentable aspects of our potentialresearch and development output and methodology, and, even if we do, an opportunity to obtain patent protection may have passed. Given the uncertain and time-consuming process of filing patent applications and prosecuting them, it is possible that our product(s) or process(es) originally covered by the scope of the patent application may have changed or been modified, leaving our product(s) or process(es) without patent protection. Moreover, in some circumstances, we do not have the right to control the preparation, filing and prosecution of patent applications, or to maintain the patents, covering technology that we license 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. If our licensors or we fail to appropriately prosecute and maintain patent protection or trade secret protection for one or more products or product candidates, are:

an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic agents, apportioned among these entities according to their market share in certain government healthcare programs;
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;
expansion of healthcare fraud and abuse laws, including the federal False Claims Act and the federal Anti-Kickback Statute, new government investigative powers and enhanced penalties for non-compliance;
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 a manufacturer’s outpatient drugs to be covered under Medicare Part D;
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 additional individuals and by adding new mandatory eligibility categories for certain individuals with income at or below 138% of the federal poverty level, thereby potentially increasing a manufacturer’s Medicaid rebate liability;
expansion of the entities eligible for discounts under the 340B Drug Pricing Program;
the new requirements under the federal Open Payments program and its implementing regulations;
a new requirement to annually report drug samples that manufacturers and distributors provide to physicians;
a new regulatory pathway for the approval of biosimilar biological products, all of which will impact existing government healthcare programs and will result in the development of new programs; and
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research.
The Supreme Court upheld the ACA in the main challenge to the constitutionality of the law in 2012. The Supreme Court also upheld federal subsidies for purchasers of insurance through federally facilitated exchanges in a decision released in June 2015. Any remaining legal challenges to the ACA are viewed generally as not significantly impacting the implementation of the law if the plaintiffs prevail.
President Trump ran for office on a platform that supported the repeal of the ACA, and one of his first actions after his inauguration was to sign an Executive Order instructing federal agencies to waive or delay requirements of the ACA that impose economic or regulatory burdens on states, families, the health-care industry and others. Modifications to or repeal of all or certain provisions of the ACA have been attempted in Congress as a result of the outcome of the recent presidential and congressional elections, consistent with statements made by the incoming administration and members of Congress during the presidential and congressional campaigns and following the election. In January 2017, Congress voted to adopt a budget resolution for fiscal year 2017, or the Budget Resolution, that authorizes the implementation of legislation that would repeal portions of the ACA. The Budget Resolution is not a law. However, it is widely viewed as the first step toward the passage of legislation that would repeal certain aspects of the ACA. In March 2017, following the passage of the budget resolution for fiscal year 2017, the U.S. House of Representatives passed legislation known as the American Health Care Act of 2017, which, if enacted, would amend or repeal significant portions of the ACA. Attempts in the Senate in 2017 to pass ACA repeal legislation, including the Better Care Reconciliation Act of 2017, so far have been unsuccessful.

There have been, and likely will continue to be, legislative and regulatory proposals at the federal and state levels directed at broadening the availability of healthcare and containing or lowering the cost of healthcare products and services. We cannot predict the initiatives that may be adopted in the future. The continuing efforts of the government, insurance companies, managed care organizations and other payors of healthcare services to contain or reduce costs of healthcare may adversely affect:
the demand for any products for which we may obtain regulatory approval;
our ability to set a price thatdevelop and commercialize such drugs may be adversely affected and we believe is fair formay not be able to prevent competitors from making, using and selling competing products. This failure to properly protect the intellectual property rights relating to these product candidates could impair our products;
ability to compete in the market and adversely affect our ability to generate revenues and achieve profitability, which would have a material adverse effect on our financial condition and results of operations. Furthermore, should we enter into other collaborations, including out-licensing or partnerships, we may be required to consult with or cede control to collaborators regarding the prosecution, maintenance and enforcement of licensed patents. Therefore, these patents and applications may not be prosecuted and enforced in a manner consistent with the best interests of our business.

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The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions, and has in recent years been the subject of much litigation. In addition, no consistent policy regarding the breadth of claims allowed in pharmaceutical or biotechnology patents has emerged to date in the United States. The patent situation outside the United States is even more uncertain. The laws of foreign countries may not protect our rights to the same extent as the laws of the United States, and we may fail to seek or obtain patent protection in all major markets. For example, European patent law restricts the patentability of methods of treatment of the human body more than United States law does. Our 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. Changes in either the patent laws or interpretation of the patent laws in the U.S. and other countries may diminish the value of our patents or narrow the scope of our patent protection. For example, the federal courts of the United States have taken an increasingly dim view of the patent eligibility of certain subject matter, such as naturally occurring nucleic acid sequences, amino acid sequences and certain methods of utilizing same, which include their detection in a biological sample and diagnostic conclusions arising from their detection. Such subject matter, which had long been a staple of the biotechnology and biopharmaceutical industry to protect their discoveries, is now considered, with few exceptions, ineligible in the first instance for protection under the patent laws of the United States. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents or in those licensed from a third-party.

In addition, U.S. patent laws may change, which could prevent or limit us, our subsidiaries, or our licensors from filing patent applications or patent claims to protect products and/or technologies or limit the exclusivity periods that are available to patent holders, as well as affect the validity, enforceability, or scope of issued patents. For example, on September 16, 2011, the Leahy-Smith America Invents Act was signed into law. The Leahy-Smith Act includes a number of significant changes to United States patent law. These include changes to transition from a first-to-invent system to a first-to-file system and to the way issued patents are challenged. The formation of the Patent Trial and Appeal Board now provides a quicker and less expensive process for challenging issued patents.  

We may be subject to a third-party pre-issuance submission of prior art to the USPTO, or become involved in opposition, derivation, reexamination, inter parties review, post-grant review or interference proceedings challenging our patent rights or the patent rights of others. The costs of these proceedings could be substantial, and it is possible that our efforts to establish priority of invention would be unsuccessful, resulting in a material adverse effect on our U.S. patent position. An adverse determination in any such submission, patent office trial, proceeding or litigation could reduce the scope of, render unenforceable, or invalidate, our patent rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights. In addition, if the breadth or strength of protection provided by patents and patent applications for our drug candidates is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future product candidates.

The issuance of a patent does not foreclose challenges to its inventorship, scope, validity or enforceability. Therefore, our owned and licensed patents may be challenged in the courts or patent offices in the U.S. and abroad. Such challenges may result in loss of exclusivity or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and products. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such product candidates might expire before or shortly after such product candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with enough rights to exclude others from commercializing products similar or identical to ours.

Even if our patent applications issue as patents, and they are unchallenged, our issued patents and our pending patents, if issued, may not provide us with any meaningful protection or prevent competitors from designing around our patent claims to circumvent our owned or licensed patents by developing similar or alternative technologies or drugs in a non-infringing manner. For example, a third party may develop a competitive drug that provides benefits similar to one or more of our products or product candidates but that has a different composition that falls outside the scope of our patent protection. If the patent protection provided by the patents and patent applications we hold or pursue with respect to our products or product candidates is not sufficiently broad to impede such competition, our ability to successfully commercialize our products or product candidates could be negatively affected, which would harm our business.

In addition, we may in the future be subject to claims by our former employees or consultants asserting an ownership right in our patents or patent applications, as a result of the work they performed on our behalf. Although we have entered into agreements with many of our employees, consultants and advisors and any other third parties who have access to our proprietary know-how, information or technology to assign or grant similar rights to their inventions to us, we cannot be certain that we have executed such agreements with all parties who may have contributed to our intellectual property, nor can we be certain that our agreements with such parties will be upheld in the face of a potential challenge, or that they will not be breached, for which we may not have an adequate remedy. An adverse determination

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in any such submission or proceeding may result in loss of exclusivity or freedom to operate or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and drugs, without payment to us, or could limit the duration of the patent protection covering our technology and drug candidates. Such challenges may also result in our inability to manufacture or commercialize our products and product candidates without infringing third-party patent rights. In addition, if the breadth or strength of protection provided by our patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future drug candidates.

Patent protection and other intellectual property protection are crucial to the success of our business and prospects, and there is a substantial risk that such protections will prove inadequate.

Obtaining and maintaining 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.

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. In addition, periodic maintenance fees on issued patents often must be paid to the USPTO and foreign patent agencies over the lifetime of the patent. While an unintentional 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, but are not limited to, 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 fail to maintain the patents and patent applications covering our drugs or procedures, we may not be able to stop a competitor from marketing drugs that are the same as or similar to our products or product candidates, which would have a material adverse effect on our business.

If we do not obtain patent term extensions under the Hatch-Waxman Amendments and similar foreign legislation extending the terms of our licensed patents and any future patents we may own, our business may be materially harmed.

Depending on the timing, duration, and specifics of any FDA regulatory approval for our drug candidates, one or more of our licensed U.S. patents or future U.S. patents that we may license or own may be eligible for limited patent term restoration under the Hatch-Waxman Amendments.  The Hatch-Waxman Amendments permit a patent term extension of up to five years as compensation for patent term lost during the FDA regulatory review process.  A patent term extension cannot extend the remaining term of a patent beyond 14 years from the date of product approval by the FDA, and only one patent covering the approved product may be extended.  

The application for a patent term extension is subject to approval by the USPTO, in conjunction with the FDA.  We may not be granted an extension because of, for example, failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements.  Moreover, the applicable time period or the scope of the patent protection afforded could be less than we request.  If we are unable to obtain patent term extension or any term of such extension is less than we request, the period during which we will have the right to exclusively market our product will be shortened and our competitors may obtain earlier approval of competing products, and our ability to generate revenues could be materially adversely affected.

We may not be able to enforce our intellectual property rights throughout the world.

Filing, prosecuting and defending patents on drug candidates throughout the world would be prohibitively expensive. Competitors may use our licensed and owned technologies in jurisdictions where we have not licensed or obtained patent protection to develop their own products and, further, may export otherwise infringing products to territories where we may obtain or license patent protection, but where patent enforcement is not as strong as that in the United States. These products may compete with our products in jurisdictions where we do not have any issued or licensed patents and any future patent claims or other intellectual property rights may not be effective or sufficient to prevent them from so competing.

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Moreover, our ability to protect and enforce our intellectual property rights may be adversely affected by unforeseen changes in foreign intellectual property laws. Additionally, laws of some countries outside of the United States and Europe do not afford intellectual property protection to the same extent as the laws of the United States and Europe. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The legal systems of some countries, including India, China and other developing countries, do not favor the enforcement of patents and other intellectual property rights. This could make it difficult for us to stop the infringement of our patents or the misappropriation of our other intellectual property rights. For example, many foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third parties. Consequently, we may not be able to prevent third parties from practicing our inventions in certain countries outside the United States and Europe.

Proceedings to enforce our future patent rights, if any, in foreign jurisdictions could result in substantial cost and divert our resources and attention from other aspects of our business.  Moreover, such proceedings 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 meaningful. Furthermore, while we intend to protect our intellectual property rights in major markets for our products, we cannot ensure that we will be able to initiate or maintain profitability;

similar efforts in all jurisdictions in which we may wish to market our products. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate.

We may be involved in lawsuits to protect or enforce our patents or the levelpatents of taxesour licensors, which could be expensive, time consuming and unsuccessful.

Competitors may infringe our patents or the patents of our licensors. To counter infringement or unauthorized use, we may be required to file infringement claims, which typically are very expensive, time-consuming and disruptive of day-to-day business operations. Any claims we assert against accused infringers could provoke these parties to assert counterclaims against us alleging invalidity of our or certain of our subsidiaries patents or that we infringe their patents; or provoke those parties to petition the USPTO to institute inter parties review against the asserted patents, which may lead to a finding that all or some of the claims of the patent are invalid. In addition, in an infringement proceeding, a court may decide that a patent of ours or our licensors is not valid or is unenforceable, or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one or more of our pending patents at risk of being invalidated, held unenforceable, or interpreted narrowly.

In patent litigation in the United States, defendant counterclaims challenging the validity, enforceability or scope of asserted patents are commonplace. In addition, third parties may initiate legal proceedings against us to assert such challenges to our intellectual property rights. The outcome of any such proceeding is generally unpredictable. Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Patents may be unenforceable if someone connected with prosecution of the patent withheld relevant information from the USPTO or made a misleading statement during prosecution. It is possible that prior art of which we and the patent examiner were unaware during prosecution exists, which could render our patents invalid. Moreover, it is also possible that prior art may exist that we are aware of but do not believe is relevant to our current or future patents, but that could nevertheless be determined to render our patents invalid.

Competing drugs may also be sold in other countries in which our patent coverage might not exist or be as strong. If we lose a foreign patent lawsuit, alleging our infringement of a competitor’s patents, we could be prevented from marketing our drugs in one or more foreign countries. Any of these outcomes would have a materially adverse effect on our business.

In addition, 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. Furthermore, adverse results on United States patents may affect related patents in our global portfolio. The adverse result could also put related pending patent applications at risk of not issuing. Additionally, there could be public announcements of the results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock.

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Interference proceedings provoked by third parties or brought by the USPTO may be necessary to determine the priority of inventions with respect to our patents or pending patent applications or those of our collaborators or licensors. An unfavorable outcome could require us to cease using the related technology or to attempt to license rights to it from the prevailing party. The costs of these proceedings could be substantial. As a result, the issuance, scope, validity, enforceability and commercial value of our or any of our respective licensors patent rights are highly uncertain. Our business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Litigation or interference proceedings may fail and, even if successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our licensors, misappropriation of our trade secrets or confidential information, particularly in countries where the laws may not protect those rights as fully as in the United States.

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 greater financial resources and more mature and developed intellectual property portfolios. Accordingly, despite our efforts, we may not be able to prevent third parties from infringing upon or misappropriating or from successfully challenging our intellectual property rights. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace.

If we or our partners are sued for infringing intellectual property rights of third parties, it will be costly and time consuming, and an unfavorable outcome in that litigation would have a material adverse effect on our business.

Our commercial success depends upon our ability and the ability of our collaborators to develop, manufacture, market and sell our drug candidates and use our proprietary technologies without infringing the proprietary rights and intellectual property of third parties. The biotechnology and pharmaceutical industries are characterized by extensive and frequent litigation regarding patents and other intellectual property rights. We may in the future become party to, or threatened with, adversarial proceedings or litigation regarding intellectual property rights with respect to our drug candidates and technology, including interference proceedings before the USPTO.

Our competitors or other third parties may assert infringement claims against us, alleging that our drugs are covered by their patents. Given the vast number of patents in our field of technology, we cannot be certain that we do not infringe existing patents or that we will not infringe patents that may be granted in the future. Numerous United States and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing products, some of which may be directed at claims that overlap with the subject matter of our intellectual property. In addition, because patent applications can take many years to issue, there may be currently pending applications, unknown to us, which may later result in issued patents that our product candidates or proprietary technologies may infringe. Similarly, there may be issued patents relevant to our product candidates of which we are not aware. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after a first filing, or in some cases not at all. Therefore, we cannot know with certainty whether we or our licensors were the first to make the inventions claimed in patents or pending patent applications that we own or licensed, or that we or our licensors were the first to file for patent protection of such inventions.

We are aware of certain patents that may pose issues for our commercialization of our drug candidates. If we decide to initiate proceedings to challenge the validity of these patents in the future, we may be unsuccessful, as courts or patent offices in the United States and abroad could uphold the validity of any such patents. If we were to challenge the validity of any issued United States patent in court, we would need to overcome a statutory presumption of validity that attaches to every United States patent. This means that in order to prevail, we would have to present clear and convincing evidence as to the invalidity of the patent’s claims. If we are unable to do so, we may be forced to delay the launch of ublituximab or launch at the risk of litigation for patent infringement, which may have a material adverse effect on our business and results of operations.

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If a third-party claims that we or any collaborators of ours infringe their intellectual property rights, we may have to defend litigation or administrative proceedings which may be costly whether we win or lose, and which could result in a substantial diversion of our financial and management resources. If we are found to infringe a third party’s intellectual property rights, we could be required to pay;obtain a license from such third party to continue developing and

marketing our drug candidates and technology. However, we may not be able to obtain any required license on commercially reasonable terms or at all. Even if we were able to obtain such a license, it could be granted on non-exclusive terms, thereby providing our competitors and other third parties access to the availability of capital.
same technologies licensed to us. Without such a license, we could be forced, including by court order, to cease developing and commercializing the infringing technology or drug candidates. In addition, governmentswe could be found liable for monetary damages, including treble damages and attorney’s fees if we are found to have willfully infringed such third-party patent rights. A finding of infringement could prevent us from commercializing our drug candidates or force us to cease some of our business operations, which could materially harm our business.

No assurance can be given that patents issued to third parties do not exist, have not been filed, or could not be filed or issued, which contain claims covering its products, technology or methods that may impose price controls,encompass all or a portion of our products and methods. Given the number of patents issued and patent applications filed in our technical areas or fields, we believe there is a risk that third parties may allege they have patent rights encompassing our products or methods.

Other product candidates that we may in-license or acquire could be subject to similar risks and uncertainties.

We may need to license certain intellectual property from third parties, and such licenses may not be available or may not be available on commercially reasonable terms.

A third party may hold intellectual property, including patent rights that are important or necessary to the development and commercialization of our products. It may be necessary for us to use the patented or proprietary technology of third parties to commercialize our products, in which case we would be required to obtain a license from these third parties, whom may or may not be interested in granting such a license, on commercially reasonable terms, or our business could be harmed, possibly materially. For example, we engage extensively with third parties, including academic institutions, to conduct non-clinical and clinical research on our product candidates. While we seek to ensure all material transfer and service agreements governing this research provide us with favorable terms covering newly generated intellectual property, a general principle under which much of this research with academic institutions is conducted provides third-party ownership of newly generated intellectual property, with an exclusive option available for us to obtain a license to such intellectual property. Through the conduct of this research, it is possible that valuable intellectual property could be developed by a third party, which we will then need to license in order to better develop or commercialize our products. No assurance can be given that we will be able to successfully negotiate such a license on commercially reasonable terms, or at all. Further, should we fail to successfully negotiate a license to such intellectual property, most institutions are then free to license such intellectual property to any other third party, including potentially direct competitors of ours. Should we fail to adequately secure a license to any newly generated intellectual property, our ability to successfully develop or commercialize our products may be hindered, possibly materially.

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position may be harmed.

In addition to the protection afforded by patents, we rely upon unpatented trade secret protection, unpatented know-how and continuing technological innovation to develop and maintain our competitive position. With respect to the building of our proprietary compound library, we consider trade secrets and know-how to be our primary intellectual property. We seek to protect our proprietary technology and processes, in part, by entering into confidentiality agreements with our collaborators, scientific advisors, employees and consultants, and invention assignment agreements with our consultants and employees. We may not be able to prevent the unauthorized disclosure or use of our technical know-how or other trade secrets by the parties to these agreements, however, despite the existence generally of confidentiality agreements and other contractual restrictions. 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. If any of the collaborators, scientific advisors, employees and consultants who are parties to these agreements breaches or violates the terms of any of these agreements, we may not have adequate remedies for any such breach or violation, and we could lose our trade secrets as a result. Enforcing a claim that a third party illegally obtained and is using our trade secrets, like patent litigation, is expensive and time-consuming, and the outcome is unpredictable. In addition, courts outside the United States are sometimes less willing to protect trade secrets.

Our trade secrets could otherwise become known or be independently discovered by our competitors. Competitors could purchase our drug candidates and attempt to replicate some or all of the competitive advantages we derive from our development efforts, willfully infringe our intellectual property rights, design around our protected technology or develop their own competitive technologies that fall

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outside of our intellectual property rights. If any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent them, or those to whom they communicate it, from using that technology or information to compete with us. If our trade secrets are not adequately protected so as to protect our market against competitors’ drugs, our competitive position could be adversely affected, as could our business.

We may be subject to damages resulting from claims that we or our employees have wrongfully used or disclosed alleged trade secrets of our competitors or are in breach of non-competition or non-solicitation agreements with our competitors.

We could in the future be subject to claims that we or our employees have inadvertently or otherwise used or disclosed alleged trade secrets or other proprietary information of former employers or competitors. Although we try to ensure that our employees and consultants do not use the intellectual property, proprietary information, know-how or trade secrets of others in their work for us, we may in the future be subject to claims that we caused an employee to breach the terms of his or her non-competition or non-solicitation agreement, or that we or these individuals have, inadvertently or otherwise, used or disclosed the alleged trade secrets or other proprietary information of a former employer or competitor. Litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and could be a distraction to management. If our defenses to these claims fail, in addition to requiring us to pay monetary damages, a court could prohibit us from using technologies or features that are essential to our drug candidates, if such technologies or features are found to incorporate or be derived from the trade secrets or other proprietary information of the former employers. An inability to incorporate such technologies or features would have a material adverse effect on our business and may prevent us from successfully commercializing our drug candidates. In addition, we may lose valuable intellectual property rights or personnel as a result of such claims. Moreover, any such litigation or the threat thereof may adversely affect our future profitability.ability to hire employees or contract with independent sales representatives. A loss of key personnel or their work product could hamper or prevent our ability to commercialize our drug candidates, which would have an adverse effect on our business, results of operations and financial condition.

Risks Related to Our Business Organization and Governance, Strategy, Employees and Growth Management

If we fail to attract and keep key management, commercial, and clinical development personnel, we may be unable to successfully develop or commercialize our product candidates.

We are highly dependent on the research and development, commercialization, manufacturing, quality, financial and legal expertise of our senior management team as well as the other principal members of our management. Although we have entered into an employment agreement with our chief executive officer and employment letters with our senior managers, each of our executive officers may terminate their employment with us at any time. We do not maintain key person insurance for any of our executives or other employees. In addition, we rely on consultants and advisors, including scientific and clinical advisors, to assist us in formulating our research and development and commercialization strategy. Our consultants and advisors may be employed by employers other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to us. If we are unable to continue to attract and retain high quality personnel, our ability to pursue our growth strategy will be limited.

We expect to continue hiring qualified development and commercialization personnel. Recruiting and retaining qualified scientific, clinical, manufacturing and sales and marketing personnel will be critical to our success. The loss of the services of our chief executive officer or other key employees could impede the achievement of our research, development and commercialization objectives and seriously harm our ability to successfully implement our business strategy. Furthermore, replacing key employees may be difficult and may take an extended period of time because of the limited number of individuals in our industry with the breadth of skills and experience required to successfully develop, gain regulatory approval of and commercialize products. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or motivate these key personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. Failure to succeed in clinical trials may make it more challenging to recruit and retain qualified medical and scientific personnel. If we are not able to attract and retain the necessary personnel to accomplish our business objectives, we may experience constraints that will significantly impede the achievement of our development objectives, our ability to raise additional capital, and our ability to implement our business strategy.

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We will need to develop and expand our business, and we may encounter difficulties in managing this development and expansion, which could disrupt our operations.

We may attempt to expand our business by acquiring additional businesses or drugs, forming strategic alliances or creating joint ventures with third parties. We may encounter numerous difficulties in developing, manufacturing and marketing any new products resulting from any such arrangement or transaction that may delay or prevent us from realizing their expected benefits. If we are unable to successfully integrate such acquired businesses with our existing operations and company culture, we may never realize the benefits of such acquisitions or strategic alliances. We cannot assure you that, following any such transaction, we will achieve the expected synergies to justify the transaction.

Expanding our business will increase the sizeour operating needs. As of February 18, 2021, we had 272 full -time employees, and we expect to continue to increase our organizationnumber of employees and expand the scope of our outside vendor relationships,operations. Our management and we may experience difficulties in managing this growth.

As of March 1, 2018, we had 75 full and part time employees. Over time, we will need to expand our managerial, operational, financial and other resources in order to manage and fund our operations and clinical trials, continue research and development activities, and commercialize our product candidates. Our managementmedical, commercial, and scientific personnel, systems and facilities currently in place may not be adequate to support our anticipated future growth. OurTo 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. Also, our management may need to divert a disproportionate amount of its attention away from its day-to-day activities and devote a substantial amount of time to managing these development activities. Due to our limited resources, we may not be able to effectively manage the expansion of our operations or recruit and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to operational mistakes, loss of business opportunities, loss of employees and reduced productivity among remaining employees. To accommodate growth, additional physical expansion of our operations in the future may lead to significant costs, including capital expenditures, and may divert financial resources from other projects, such as the development of our drug candidates. If our management is unable to effectively manage our operations, growth,expected development and various projects requires that we:
expansion, our expenses may increase more than expected, our ability to generate or increase our revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability to commercialize our drug candidates, if approved, and compete effectively will depend, in part, on our ability to effectively manage the future development and expansion of our clinical trials effectively;
business.

Additionally, to help manage our internal development efforts effectively while carrying out our contractual obligations to licensors, contractors and other third parties;

continue to improve our operational, financial and management controls and reporting systems and procedures; and
attract and retain sufficient numbers of talented employees.
Wethe expanding needs, we may utilize the services of outside vendors or consultants to perform tasks including clinical trial management, statistics and analysis, regulatory affairs, formulation development, chemistry, manufacturing, controls, and other pharmaceutical development functions. Our growth strategy may also entail expanding our group of contractors or consultants to implement these tasks going forward. Because we rely on a substantial number of consultants, effectively outsourcing many key functions of our business, we will need to be able to effectively manage these consultants to ensure that they successfully carry out their contractual obligations and meet expected deadlines. However, if we are unable to effectively manage our outsourced activities or if the quality or accuracy of the services provided by consultants is compromised for any reason, our clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for our product candidates or otherwise advance itsour business. There can be no assurance that we will be able to manage our existing consultants or find other competent outside contractors and consultants on economically reasonable terms, or at all. If we are not able to effectively expand our organization by hiring new employees and expanding our groups of consultants and contractors, we may be unable to successfully implement the tasks necessary to advance the commercialization of UKONIQ and further develop and commercialize our product candidates and, accordingly, may not achieve our research, development and commercialization goals.

Certain anti-takeover provisions in our governing documents and Delaware law could make a third-party acquisition of us difficult. This could limit the price investors might be willing to pay in the future for our common stock.

Certain provisions in our amended and restated certificate of incorporation and restated bylaws may make it more difficult for a third party to acquire us, or discourage a third party from attempting to acquire or control us and may limit the price that certain investors might be willing to pay in the future for shares of our common stock. For example, our amended and restated certificate of incorporation allows us to issue preferred stock without the approval of our stockholders, the issuance of which could decrease the amount of earnings and assets available for distribution to, or affect the rights and powers (including voting rights) of, of our common stockholders. In certain circumstances, such issuance could have the effect of decreasing the market price of our common stock. In addition, our restated bylaws eliminate the right of stockholders to call a special meeting of stockholders, which could make it more difficult for stockholders to effect certain corporate actions. Any of these provisions could also have the effect of delaying or preventing a change in control.

On July 18, 2014, the Board of Directors declared a distribution of one right for each outstanding share of common stock. The rights may have certain anti-takeover effects. The rights will cause substantial dilution to a person or group that attempts to acquire us on terms not approved by the Board of Directors unless the offer is conditioned on a substantial number of rights being acquired. However, the rights should not interfere with any merger, statutory share exchange or other business combination approved by the Board of Directors

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since the rights may be terminated by us upon resolution of the Board of Directors. Thus, the rights are intended to encourage persons who may seek to acquire control of the Company to initiate such an acquisition through negotiations with the Board of Directors. However, the effect of the rights may be to discourage a third party from making a partial tender offer or otherwise attempting to obtain a substantial equity position in the equity securities of, or seeking to obtain control of, the Company. To the extent any potential acquirers are deterred by the rights, the rights may have the effect of preserving incumbent management in office.

Our ability to utilize our net operating loss carryforwards and certain other tax attributes may be limited.

Under Section 382 of the Internal Revenue Code of 1986, as amended, if a corporation undergoes an ownership change (generally defined as a greater than 50% change (by value) in the ownership of its equity over a three year period), the corporation’s ability to use its pre-change net operating loss carryforwards and certain other pre-change tax attributes to offset its post-change income may be limited. We may not be successfulhave experienced such ownership changes in the past, and we may experience ownership changes in the future as a result of shifts in our efforts to identify or discover additional product candidatesstock ownership, some of which are outside our control. As of December 31, 2020, we had federal net operating loss carryforwards of approximately 956.3 million, and may fail to capitalize on programs or product candidates that may present a greater commercial opportunity or for which there is a greater likelihood of success.

The success of our business depends upon our ability to identify, developutilize those net operating loss carryforwards could be limited by an ownership change as described above, which could result in increased tax liability to us. In addition, pursuant to the Tax Act, we may not use net operating loss carry-forwards to reduce our taxable income in any year by more than 80%, and commercialize product candidates basedwe may not carry back any net operating losses to prior years. On March 27, 2020, the “CARES Act” was signed by the U.S. President. Certain provisions of the CARES Act alter the rules regarding net-operating losses for such losses arising in 2018, 2019 and 2020. Such losses may be carried back for five years. We cannot assure you, however, of our ability to utilize these favorable offset rules within the applicable time period. These rules apply regardless of the occurrence of an ownership change.

Certain of our executive officers, directors, principal stockholders and their affiliates maintain the ability to exercise significant influence over our company and all matters submitted to stockholders for approval.

Certain of our executive officers, directors and stockholders own more than 10% of our outstanding common stock and, together with their affiliates and related persons, beneficially own a significant percentage of our capital stock. If these stockholders were to choose to act together, they would be able to influence our management and affairs and the outcome of matters submitted to our stockholders for approval, including the election of directors and any sale, merger, consolidation, or sale of all or substantially all of our assets. This concentration of voting power could delay or prevent an acquisition of our company on terms that other stockholders may desire. In addition, this concentration of ownership might adversely affect the market price of our common stock by:

delaying, deferring or preventing a change of control of us;
impeding a merger, consolidation, takeover or other business combination involving us; or
discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of us.

Our internal computer systems, or those of our third-party CROs, CMOs, or other contractors or consultants, may fail or suffer security breaches, which could result in a material disruption of our drug candidates’ development programs and our commercialization of any products for which we receive regulatory approval.

Despite the implementation of security measures, our internal computer systems and those of our third-party CROs, CMOs, and other contractors and consultants are vulnerable to damage from computer viruses, unauthorized access, cyber-attacks or cyber-intrusions over the Internet, natural disasters, terrorism, war and telecommunication and electrical failures.  Although we have been the targets of cyber-attacks and cyber-intrusions, the impact on our programs. Ifoperations and financial condition has not been material.  We expect such cybersecurity threats to continue and become more sophisticated.  A significant cyber-attack or cyber-intrusion could cause our systems to fail, leakage of confidential information, or business interruption, which could result in a material disruption of our operations, financial loss, or reputational harm. For example, the loss of clinical trial data for our drug candidates could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data.  We have invested in protections and monitoring practices of our data and information technology systems to reduce these risks and expect to continue do so as our computer systems increase in magnitude and complexity.  However, there can be no assurance that our efforts and investments will prevent breakdowns or breaches in our systems that could adversely affect our business.

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Unfavorable global economic conditions could adversely affect our business, financial condition or results of operations.

Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. For example, the COVID-19 pandemic has caused extreme volatility and disruptions in the capital and credit markets. A severe or prolonged economic downturn could result in a variety of risks to our business, including, weakened demand for our drug candidates and our ability to raise additional capital when needed on acceptable terms, if at all. A weak or declining economy could also strain our suppliers, possibly resulting in supply disruption, or cause our customers to delay making payments for our services.

On January 31, 2019 (Brexit Day), the United Kingdom formally left the European Union. Although Brexit has already and may continue to adversely affect European and/or worldwide economic or market, political or regulatory conditions and may contribute to instability in the global financial markets, political institutions and regulatory agencies, the resulting immediate changes in foreign currency exchange rates have had a limited overall impact due to natural hedging. Although the United Kingdom and the European Union reached a trade agreement in late 2020, the long-term impact of Brexit, including on our business and our industry, remains uncertain.  Despite the Brexit developments, we do not successfully develop and eventually commercialize products, we will face difficulty in obtaining product revenue in future periods, resulting in significant harm to our financial position and adversely affecting our share price. Research programs to identify new product candidates require substantial technical, financial and human resources.


Additionally, because we have limited resources, we may forego or delay pursuit of opportunities with certain programs or product candidates or for indications that later proveexpect macroeconomic conditions to have greater commercial potential. a significant impact on our liquidity needs, financial condition or results of operations. 

Our estimates regarding the potential market for a product candidate could be inaccurate,employees, principal investigators, CROs, CMOs and our spending on current and future research and development programsconsultants may not yield any commercially viable products. If we do not accurately evaluate the commercial potential for a particular product candidate, we may relinquish valuable rights to that product candidate through strategic collaboration, licensingengage in misconduct or other arrangements in cases in which it would have been more advantageous for us to retain sole developmentimproper activities, including non-compliance with regulatory standards and commercialization rights to such product candidate. Alternatively, we may allocate internal resources to a product candidate in a therapeutic area in which it would have been more advantageous to enter into a partnering arrangement.

If any of these events occur, we may be forced to abandon or delay our development efforts with respect to a particular product candidate or fail to develop a potentially successful product candidate,requirements and insider trading, which could have a material adverse effect on our business, financial condition, results of operations and prospects.
If we fail to attract and keep key management and clinical development personnel, we may be unable to successfully develop or commercialize our product candidates.
We will need to expand and effectively manage our managerial, operational, financial and other resources in order to successfully pursue our clinical development and commercialization efforts for our product candidates and future product candidates. We are highly dependent on the development, regulatory, commercial and financial expertise of the members of our senior management. The loss of the services of any of our senior management could delay or prevent the further development and potential commercialization of our product candidates and, if we are not successful in finding suitable replacements, could harm our business. We do not maintain “key man” insurance policies on the lives of these individuals. We will need to hire additional personnel as we continue to expand our manufacturing, research and development activities.
Our success depends on our continued ability to attract, retain and motivate highly qualified management and scientific personnel and we may not be able to do so in the future due to the intense competition for qualified personnel among biotechnology, pharmaceutical and other businesses. Our industry has experienced a high rate of turnover of management personnel in recent years. If we are not able to attract and retain the necessary personnel to accomplish our business objectives, we may experience constraints that will impede significantly the achievement of our development objectives, our ability to raise additional capital, and our ability to implement our business strategy.
If we fail to comply with healthcare regulations, we could face substantial penalties and our business, operations and financial condition could be adversely affected.
In addition to FDA restrictions on the marketing of pharmaceutical and biotechnology products, several other types of state and federal laws have been applied to restrict certain marketing practices in the pharmaceutical and medical device industries, as well as consulting or other service agreements with physicians or other potential referral sources and regulate the use and disclosure of identifiable patient information. These laws include anti-kickback statutes and false claims statutes that prohibit, among other things, knowingly and willfully offering, paying, soliciting or receiving remuneration to induce, or, in return for, purchasing, leasing, ordering, recommending or arranging for the purchase, lease or order of any healthcare item or service reimbursable under Medicare, Medicaid or other federally-financed healthcare programs, and knowingly presenting, or causing to be presented, a false claim for payment to the federal government, or knowingly making, or causing to be made, a false statement to get a false claim paid. The majority of states also have statutes or regulations similar to the federal anti-kickback law and false claims laws, which apply to items and services reimbursed under Medicaid and other state programs, or, in several states, apply regardless of the payor. Although there are a number of statutory exemptions and regulatory safe harbors protecting certain common activities from prosecution, the exemptions and safe harbors are drawn narrowly, and any practices we adopt may not, in all cases, meet all of the criteria for safe harbor protection from anti-kickback liability. Sanctions under these federal and state laws may include civil monetary penalties, exclusion of a manufacturer’s products from reimbursement under government programs, criminal fines and imprisonment. Any challenge to its business practices under these laws could have a material adverse effect on our business, financial condition, and results of operations. Finally, the Health Insurance Portability and Accountability Act (HIPAA), as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, their respective implementing regulations and similar state laws and regulations, impose obligations on covered healthcare providers, health plans, and healthcare clearinghouses, as well as their business associates that create, receive, maintain or transmit individually identifiable health information for or on behalf of a covered entity, with respect to safeguarding the privacy, security and transmission of individually identifiable health information. In the event our operations result in our receiving such information, we could become subject to the requirements of these laws and regulations, including potential civil and criminal penalties.

Our employees, consultants, or third party partners may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material adverse effect on our business.

We are exposed to the risk of employee fraudthat our employees, principal investigators, CROs, CMOs, and consultants may engage in fraudulent conduct or other misconduct.illegal activity. Misconduct by employees, consultants, or third party partnersthese parties could include intentional failures to comply with FDA regulations, provide accurate information to the FDA, comply with manufacturing standards we have established, comply with federal and state healthcare fraud and abuse laws and regulations, report financial information or data accurately or disclose unauthorized activities to us.  In particular,, 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. Employee, consultant, or third party misconduct couldActivities subject to these laws also involve the improper use of information obtained in the course of clinical trials or creating fraudulent data in our pre-clinical studies or clinical trials, which could result in regulatory sanctions and cause serious harm to our reputation. TheWe have adopted a code of ethics applicable to all of our employees and have implemented a compliance program, but 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 be in compliancecomply with suchthese laws or regulations. In addition, we are subject to the risk that a person could allege such fraud or other misconduct, even if none occurred. If any such actions are instituted against us, regardless of the outcome, our reputation and our business may suffer.  If we are not successful in defending ourselves or asserting our rights, those actions could lead to imposition of civil, criminal and administrative penalties, damages, monetary fines, possible exclusion from participation in Medicare, Medicaid and other federal healthcare programs, contractual damages, reputational harm, diminished profits and future earnings, and curtailment of our operations, any of which could adversely affect our ability to operate our business.

We may acquire businesses or drugs, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions.

We may acquire additional businesses or drugs, form strategic alliances or create joint ventures with third parties that we believe will complement or augment our existing business. If we acquire businesses with promising markets or technologies, we may not be able to realize the benefit of acquiring such businesses if we are unable to successfully integrate them with our existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing and marketing any new products resulting from a strategic alliance or acquisition that delay or prevent us from realizing their expected benefits or enhancing our business. We cannot assure you that, following any such acquisition, we will achieve the expected synergies to justify the transaction.

We may be subject to adverse legislative or regulatory tax changes that could negatively impact our financial condition.

The rules dealing with U.S. federal, state and local income taxation are constantly under review by persons involved in the legislative process and by the IRS and the U.S. Treasury Department. Changes to tax laws (which changes may have retroactive application) could adversely affect our stockholders or us. In recent years, many such changes have been made and changes are likely to continue to occur in the future. We cannot predict whether, when, in what form, or with what effective dates, tax laws, regulations and rulings may be enacted, promulgated or decided, which could result in an increase in our, or our stockholders, tax liability or require changes in the manner in which we operate in order to minimize increases in our tax liability.

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On December 22, 2017, legislation commonly referred to as the Tax Act was signed into law and is generally effective after December 31, 2017. The Tax Act makes significant changes to the United States federal income tax rules for taxation of individuals and business entities. Most of the changes applicable to individuals are temporary and apply only to taxable years beginning after December 31, 2017 and before January 1, 2026. For corporations, the Tax Act reduces the top corporate income tax rate to 21% and repeals the corporate alternative minimum tax, limits the deduction for net interest expense, limits the deduction for net operating losses and eliminates net operating loss carrybacks, modifies or repeals many business deductions and credits, shifts the United States toward a significantmore territorial tax system, and imposes new taxes to combat erosion of the U.S. federal income tax base. The Tax Act makes numerous other large and small changes to the federal income tax rules that may affect potential investors and may directly or indirectly affect us. We continue to examine the impact this tax reform legislation may have on our business. However, the effect of the Tax Act on us, whether adverse or favorable, is uncertain, and may not become evident for some period of time. This document does not discuss such legislation or the manner in which it might affect us or purchasers of our common stock. Prospective investors are urged to consult with their legal and tax advisors with respect to the Tax Act and any other regulatory or administrative developments and proposals, and their potential effects on them based on their unique circumstances.

Risks Related to the COVID-19 Pandemic

Major public health issues, and specifically the pandemic caused by COVID-19, could have an adverse impact on our businessfinancial condition and results of operations and other aspects of our business.

In December 2019, a novel strain of coronavirus which causes a disease referred to as COVID-19, was first detected in Wuhan, China, and has since spread around the world. On March 11, 2020, the World Health Organization declared that the rapidly spreading COVID-19 outbreak had evolved into a pandemic. In response to the pandemic, many governments around the world have implemented a variety of control measures to reduce the spread of COVID-19, including travel restrictions and bans, instructions to residents to practice social distancing, quarantine advisories, shelter-in-place orders and required closures of non-essential businesses.

The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains, and created significant volatility and disruption of financial markets. Although COVID-19 has not had a material adverse effect on our business to date, no assurance can be given that it will not in the future if the situation persists or worsens. The extent to which the COVID-19 pandemic impacts our business and operating results will depend on future developments that are highly uncertain and cannot be accurately predicted, including new information that may emerge concerning the virus, the duration, spread and severity of the COVID-19 pandemic, the rate of vaccination and efficacy of approved vaccines against the virus and any variant strains of the virus, other actions to contain the virus or treat its impact, and how quickly and to what extent normal economic and operating conditions can resume if and when the pandemic subsides, among others.

Should the COVID-19 pandemic persist or worsen and government restrictions continue, our business operations could be materially delayed or interrupted. For instance, our ongoing clinical trials may be delayed or compromised; our ability to conduct new clinical trials may be adversely impacted; our supply chain may be disrupted; health authority inspections of clinical sites or manufacturing facilities, or review of our regulatory submissions may be delayed, and our commercialization efforts may be impacted.  It is unknown how long these disruptions could continue, were they to occur. Any delay in our clinical trials, preapproval inspections or in regulatory review resulting from such disruptions could materially affect the development and commercialization of our product candidates.  

We currently rely on third parties for certain functions or services in support of our clinical trials and key areas of our operations. These third parties include contract research organizations (CROs), medical institutions and clinical investigators, contract manufacturing organizations, suppliers, and external business partners supporting commercialization of UKONIQ. If these third parties themselves are adversely impacted by restrictions resulting from the COVID-19 outbreak, we will likely experience delays and/or realize additional costs. As a result, our efforts to commercialize UKONIQ and obtain regulatory approvals for, and to commercialize, our product candidates may be delayed or disrupted.

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In addition, as a result of government directives on social distancing and to protect the health of our workforce, we have asked our office-based employees to work remotely and have restricted domestic and international travel indefinitely. Third parties on which we rely may also increase their use of remote working arrangements in response to COVID-19. Our increased reliance on personnel working remotely may negatively impact productivity, including our ability to monitor clinical trials, prepare regulatory applications, and conduct data analysis, or disrupt, delay, or otherwise adversely impact our business. In addition, remote working could increase our cybersecurity risk and make us more susceptible to communication disruptions, any of which could adversely impact our business operations or delay necessary interactions with local and federal regulators, manufacturing sites, research or clinical trial sites and contractors.

Our ability to successfully commercialize UKONIQ, and any of our product candidates for which we in the future obtain regulatory approval, also may be adversely impacted by restrictions and safety measures instituted due to COVID-19.  For example, reduced access to healthcare providers and institutions as a result of social distancing protocols has impacted our commercialization activities, including, the impositionmanner in which our field teams engage with healthcare providers and facilities.  Our compliance monitoring and oversight of interactions and communications with HCPs, payors, and other stakeholders may also be impacted by the remote work environment.  

The potential economic impact brought by and the duration of the pandemic may be difficult to assess or predict. However, it has already caused, and is likely to result in further, significant finesdisruption of global financial markets. It is likely that the pandemic will cause an economic slowdown of potentially extended duration, and it is possible that it could cause a global recession. This disruption may reduce our ability to access capital either at all or on favorable terms. In addition, a recession, depression or other sanctions.


sustained adverse market event resulting from the spread of COVID-19 could materially and adversely affect our business and the value of our common stock.

The ultimate impact of the current pandemic, or any other health epidemic, is highly uncertain and subject to change. We use biological and hazardous materials, and any claims relating to improper handling, storagedo not yet know the full extent of potential delays or disposal of these materials could be time consuming or costly.

We use hazardous materials, including chemicals and biological agents and compounds, which could be dangerous to human health and safetyimpacts on our business, our clinical trials, our research programs, healthcare systems or the environment. Our operationsglobal economy as a whole. However, these effects could have a material adverse effect on our business, financial condition and results of operations.

To the extent the COVID-19 pandemic materially adversely affects our business and financial results, it may also produce hazardous waste products. Federal, statehave the effect of significantly heightening many of the other risks described in this Risk Factors section.

The COVID-19 pandemic could have a material adverse effect on our clinical development program if the pandemic and local lawsassociated government control measures continue.

The ongoing COVID-19 pandemic has presented substantial public health challenges and regulations governis impacting the use, generation, manufacture, storage, handlingglobal healthcare system, including the conduct of clinical trials in the U.S. and disposalother parts of these materials and wastes. Compliancethe world. As a result of the COVID-19 pandemic, we may encounter delays in our clinical development program.  The majority of our clinical trials involve patients with applicable environmental laws and regulationscancer or those receiving ongoing immunosuppressive therapy who may be expensive, and current or future environmental laws and regulations may impair our pharmaceutical development efforts.

In addition, we cannot entirely eliminate theat higher risk of accidental injury or contaminationinfection. These patients are thus more likely to be subject to travel restrictions and self-quarantining and may be more likely to withdraw from these materials or wastes. If one of our employees was accidentally injured from the use, storage, handling or disposal of these materials or wastes, the medical costs related to his or her treatment would be covered by our workers’ compensation insurance policy. However, we do not carry specific biological or hazardous waste insurance coverage and our property and casualty and general liability insurance policies specifically exclude coverage for damages and fines arising from biological or hazardous waste exposure or contamination. Accordingly, in the event of contamination or injury, we could be held liable for damages or penalized with fines in an amount exceeding our resources, and our clinical trials or regulatory approvals couldunable to complete study assessments. We have made efforts to allow patients currently enrolled in our ongoing clinical trials to continue unimpeded and have continued to allow new patients to enroll in our trials. While we have allowed continued enrollment to our trials, many trial sites have limited enrollment or suspended enrollment entirely in response to the COVID-19 pandemic, which may affect our ability to enroll to our trials and meet our projected timelines.  

The UNITY-NHL FL and MZL monotherapy cohorts, the UNITY-CLL and the ULTIMATE I and II trials are fully enrolled. However, follow-up is ongoing and data continue to be suspended,collected from these or operations otherwise affected.

All product candidate development timelinesrelated follow-up studies.  These data collection efforts rely on study participants’ ability to contribute such data, often through study specific visits and projections in this report are basedprocedures that can only be conducted in-person.  While we anticipate minimal impact from COVID-19 on the assumptionpreviously estimated timelines for these trials, no guarantee can be made that our estimated timelines, or the ultimate outcome from these trials, will not be materially negatively impacted by the COVID-19 pandemic.  

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The timelines and projections in this report are predicated upon the assumption

Further, we may not be able to complete our clinical trials that we will raise additional financinginitiated more recently and for which we have not yet completed enrollment in the time frame that we had previously planned.  In addition, the pandemic may adversely affect our ability to conduct new trials. Some factors from the COVID-19 outbreak that may delay or otherwise adversely affect our clinical trial programs, as well as adversely impact our business generally, include:

delays or difficulties in clinical site initiation, including difficulties in recruiting and retaining clinical sites, impacts on compliance with clinical study protocols, delays enrolling patients in our clinical trials, decreased enrollment in our clinical trials or increased rates of patients withdrawing from our clinical trials following enrollment, in each case, as a result of patients contracting COVID-19, being forced to quarantine, experiencing reluctance to seek medical attention in a healthcare facility setting, or otherwise not being able or willing to complete study assessments, particularly for older patients or others with a higher risk of contracting COVID-19;
impacts to clinical results, including an increased number of observed adverse events, as a result of participants enrolled in our clinical trials contracting COVID-19;
prioritization by healthcare providers, facilities, lawmakers, and regulators of COVID-19-related healthcare needs or, when the pandemic subsides, to address the potential backlog of patients who have deferred medical procedures during the pendency of the pandemic, which may reduce availability of professionals and resources for clinical trials in other disease areas;
limitations on travel, including limitations on domestic and international travel, and government-imposed quarantines or restrictions imposed by key third parties that could interrupt key trial activities, such as clinical trial site initiations and monitoring, which could impact the reliability or integrity of subject data and clinical study endpoints;
interruption of, or delays in receiving, supplies of our product candidates from our contract manufacturing organizations due to staffing shortages, production slowdowns or stoppages or interruption in global shipping that may affect the transport of clinical trial materials;
disruptions and delays caused by potential workplace, laboratory and office closures and an increased reliance on employees working from home across the healthcare system;
disruptions in or delays to regulatory reviews, responses, inspections, or other regulatory activities, including review of marketing applications and approvals of protocol changes or amendments to Special Protocol Assessments (SPA), as a result of the spread of COVID-19 affecting the operations of the U.S. Food and Drug Administration (FDA) or other regulatory authorities;
changes in local regulations as part of a response to the COVID-19 pandemic which may require us to change the ways in which clinical trials are conducted, which may result in unexpected costs, or to discontinue the clinical trials altogether;
refusal of the FDA to accept data from clinical trials in affected geographies outside the United States; and
negative effects on the quality, completeness, integrity, interpretability and cost of our clinical study data.

The potential disruptions discussed above and other consequences of the COVID-19 pandemic couldresult in missed study visits or study procedures in our clinical trials, which could lead to an abundance of protocol deviations thatimpact the interpretability of the trial results.  A significant number of deviations may call into question whether the execution of a clinical trial was consistent with the protocol, which is of particular importance where study designs were agreed to as part of a SPA as in the case of our Phase 3 clinical trial for the combination of ublituximab plus UKONIQ for patients with chronic lymphocytic leukemia (UNITY-CLL) and our registration program for ublituximab in relapsing multiple sclerosis (ULTIMATE I and II).  In extreme cases, significant deviations from the protocol may be considered a violation of the SPA and result in potential rescindment of the SPA agreement, which could adversely affect our ability to use the results of the impacted study to support a future regulatory application.

We will continue to monitor the potential impact of COVID-19 on our clinical trial program, however, the full extent to which the COVID-19 pandemic may directly or indirectly impact the progress of our current and planned trials will depend on future developments that are highly uncertain and cannot be accurately predicted.

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General Risks

Risks Related to Our Common Stock and Being a Publicly-Traded Company

Our stock price is, and we expect it to remain, volatile, which could limit investors ability to sell stock at a profit.

The trading price of our common stock has been and is likely to continue to be highly volatile and subject to wide fluctuations in price in response to various factors, many of which are beyond our control. These factors include:

publicity regarding actual or potential clinical results relating to products under development by our competitors or us;
delay or failure in initiating, completing or analyzing nonclinical or clinical trials or the unsatisfactory design or results of these trials;
achievement or rejection of regulatory approvals by our competitors or us;
announcements of technological innovations or new commercial products by our competitors or us;
developments concerning proprietary rights, including patents;
developments concerning our collaborations;
regulatory developments in the United States and foreign countries;
economic or other crises and other external factors such as the disruptions in the global economy caused by the COVID-19 pandemic;
period-to-period fluctuations in our revenues and other results of operations;
changes in financial estimates by securities analysts; and
sales of our common stock by us.

We will not be able to control many of these factors, and we believe that period-to-period comparisons of our financial results will not necessarily be indicative of our future performance.

In addition, the stock market in general, and the market for biotechnology companies in particular, has experienced extreme price and volume fluctuations that may have been unrelated or disproportionate to the operating performance of individual companies. These broad market and industry factors may seriously harm the market price of our common stock, regardless of our operating performance.

Because we do not anticipate paying any cash dividends on our capital stock in the foreseeable future, capital appreciation, if any, will be the sole source of gain for our stockholders.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the growth and development of our product candidates.business. In addition, under the Loan Agreement, we are currently restricted from paying cash dividends, and we expect these restrictions to continue in the future. In addition, the terms of any future debt agreements may continue to preclude us from paying dividends. As a result, capital appreciation, if any, of our common stock will be the sole source of gain for our stockholders for the foreseeable future.

An active trading market for our common stock may not be sustained, and investors may not be able to resell their shares at or above the price they paid.

Although we have listed our common stock on the Nasdaq Capital Market, an active trading market for our shares may not be sustained. In the eventabsence of an active trading market for our common stock, investors may not be able to sell their common stock at or above the price at which they acquired their shares or at the time that they would like to sell. An inactive trading market may also impair our ability to raise capital to continue to fund operations by selling shares and may impair our ability to acquire other companies or technologies by using our shares as consideration.

If equity research analysts do not publish research or reports about our business or if they publish negative evaluations of or downgrade our common stock, the price of our common stock could decline.

The trading market for our common stock relies in part on the research and reports that equity research analysts publish about us or our business. We do not control these analysts. We may never obtain research coverage by industry or financial analysts. If no or few analysts

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commence coverage of us, the trading price of our stock would likely decrease. Even if we do not successfully raise subsequent financing, our product development activities will necessarily be curtailed commensurate with the magnitudeobtain analyst coverage, if one or more of the shortfall. If our product development activities are slowed or stopped, we would be unable to meet the timelines and projections outlined in this filing. Failure to progress our product candidates as anticipated will have a negative effect onanalysts covering our business future prospects, and abilitydowngrade their evaluations of our common stock, the price of our common stock could decline. If one or more of these analysts cease to obtain further financing on acceptable terms (if at all), andcover our common stock, we could lose visibility in the value of the enterprise.


market for our common stock, which in turn could cause our common stock price to decline.

We incur significant increased costs as a result of operating as a public company, and our management is required to devote substantial time to compliance initiatives.

As a public company, we incur significant legal, accounting and other expenses under the Sarbanes-Oxley Act of 2002, as well as rules subsequently implemented by the Securities and Exchange Commission, or SEC, and the rules of any stock exchange on which we may becomeare listed. These rules impose various requirements on public companies, including requiring establishment and maintenance of effective disclosure and financial controls and appropriate corporate governance practices. Our team has devoted and will continue to devote a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations increase our legal and financial compliance costs and make some activities more time-consuming and costly. For example, these rules and regulations make it more difficult and more expensive for us to obtain director and officer liability insurance, and we may be required to accept reduced policy limits and coverage or incur substantially higher costs to obtain the same or similar coverage. As a result, it may be more difficult for us to attract and retain qualified persons to serve on our Board of Directors, our Board committees or as executive officers.

The Sarbanes-Oxley Act of 2002 requires, among other things, that we maintain effective internal control over financial reporting and disclosure controls and procedures. As a result, we are required to periodically perform an evaluation of our internal control over financial reporting to allow management to report on the effectiveness of those controls, as required by Section 404 of the Sarbanes-Oxley Act. Additionally, our independent auditors are required to perform a similar evaluation and report on the effectiveness of our internal control over financial reporting. These efforts to comply with Section 404 will require the commitment of significant financial and managerial resources. While we anticipate maintaining the integrity of our internal control over financial reporting and all other aspects of Section 404, we cannot be certain that a material weakness will not be identified when we test the effectiveness of our control systems in the future. If a material weakness is identified, we could be subject to sanctions or investigations by the SEC or other regulatory authorities, which would require additional financial and management resources, costly litigation or a loss of public confidence in our internal controls,control, which could have an adverse effect on the market price of our stock.

Risks Relating to Acquisitions
Acquisitions, investments and strategic alliances that we may make

Volatility in the future may use significant resources, result in disruptions to our business or distractions of our management, may not proceed as planned, and could expose us to unforeseen liabilities.

We may seek to expand our business through the acquisition of, investments in and strategic alliances with companies, technologies, products, and services. Acquisitions, investments and strategic alliances involve a number of special problems and risks, including, but not limited to:
difficulty integrating acquired technologies, products, services, operations and personnel with the existing businesses;
diversion of management’s attention in connection with both negotiating the acquisitions and integrating the businesses;
strain on managerial and operational resources as management tries to oversee larger operations;
difficulty implementing and maintaining effective internal control over financial reporting at businesses that we acquire, particularly if they are not located near our existing operations;
exposure to unforeseen liabilities of acquired companies;
potential costly and time-consuming litigation, including stockholder lawsuits;
potential issuance of securities to equity holders of the company being acquired with rights that are superior to the rights of holders of our common stock or which may have a dilutive effect on our stockholders;
risk of loss of invested capital;
the need to incur additional debt or use cash; and
the requirement to record potentially significant additional future operating costs for the amortization of intangible assets.

As a result of these or other problems and risks, businesses we acquire may not produce the revenues, earnings, or business synergies that we anticipated, and acquired products, services, or technologies might not perform as we expected. As a result, we may incur higher costs and realize lower revenues than we had anticipated. We may not be able to successfully address these problems and we cannot assure you that the acquisitions will be successfully identified and completed or that, if acquisitions are completed, the acquired businesses, products, services, or technologies will generate sufficient revenue to offset the associated costs or other negative effects on our business.
Any of these risks can be greater if an acquisition is large relative to our size. Failure to effectively manage our growth through acquisitions could adversely affect our growth prospects, business, results of operations, financial condition and cash flows.
Risks Relating to Our Intellectual Property
Our success depends upon our ability to protect our intellectual property and proprietary technologies, and the intellectual property protection for our product candidates depends significantly on third parties.
Our commercial success depends on obtaining and maintaining patent protection and trade secret protection in the US and other countries with respect to our product candidates or any future product candidate that we may license or acquire, their formulations and uses and the methods we use to manufacture them, as well as successfully defending these patents against third-party challenges. We seek to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and product candidates, and by maintenance of our trade secrets through proper procedures. We will only be able to protect our technologies from unauthorized use by third parties to the extent that valid and enforceable patents or trade secrets cover them in the market they are being used or developed. If any of our licensors or partners fails to appropriately prosecute and maintain patent protection for these product candidates, our ability to develop and commercialize these product candidates may be adversely affected and we may not be able to prevent competitors from making, using and selling competing products. This failure to properly protect the intellectual property rights relating to these product candidates could have a material adverse effect on our financial condition and results of operations.
Currently, the composition of matter patent and several method of use patents for TG-1101 and TGR-1202 in various indications and settings have been applied for but have not yet been issued, or have been issued in certain territories but not under all jurisdictions in which such applications have been filed. While composition of matter patents have been granted in the US for TG-1101 and TGR-1202, no patents to date have been issued for our IRAK4 inhibitor, BET inhibitor, BTK inhibitor and anti-PD-L1 and anti-GITR programs. There can be no guarantee that any of these patents for which an application has already been filed, nor any patents filed in the future for our product candidates will be granted in any or all jurisdictions in which there were filed, or that all claims initially included in such patent applications will be allowed in the final patent that is issued. The patent application process is subject to numerous risks and uncertainties, and there can be no assurance that we or our partners will be successful in protecting our product candidates by obtaining and defending patents.
These risks and uncertainties include the following:
the patent applications that we or our partners file may not result in any patents being issued;
patents that may be issued or in-licensed may be challenged, invalidated, modified, revoked or circumvented, or otherwise may not provide any competitive advantage;
as of March 16, 2013, the U.S. converted from a “first to invent” to a “first to file” system. If we do not win the filing race, we will not be entitled to inventive priority;
our competitors, many of which have substantially greater resources than we do, and many of which have made significant investments in competing technologies, may seek, or may already have obtained, patents that will limit, interfere with, or eliminate its ability to make, use, and sell our potential products either in the United States or in international markets;
there may be significant pressure on the U.S. government and other international governmental bodies to limit the scope of patent protection both inside and outside the United States for disease treatments that prove successful as a matter of public policy regarding worldwide health concerns; and
countries other than the United States may have less restrictive patent laws than those upheld by United States courts, allowing foreign competitors the ability to exploit these laws to create, develop, and market competing products.

If patents are not issued that protect our product candidates, it could have a material adverse effect on our financial condition and results of operations. The patent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. It is also possible that we will fail to identify any patentable aspects of our research and development output and methodology, and, even if we do, an opportunity to obtain patent protection may have passed. Given the uncertain and time-consuming process of filing patent applications and prosecuting them, it is possible that our product(s) or process(es) originally covered by the scope of the patent application may have changed or been modified, leaving our product(s) or process(es) without patent protection. If our licensors or we fail to obtain or maintain patent protection or trade secret protection for one or more product candidates or any future product candidate we may license or acquire, third parties may be able to leverage our proprietary information and products without risk of infringement, which could impair our ability to compete in the market and adversely affect our ability to generate revenues and achieve profitability. Moreover, should we enter into other collaborations we may be required to consult with or cede control to collaborators regarding the prosecution, maintenance and enforcement of licensed patents. Therefore, these patents and applications may not be prosecuted and enforced in a manner consistent with the best interests of our business.
The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions, and has in recent years been the subject of much litigation. In addition, no consistent policy regarding the breadth of claims allowed in pharmaceutical or biotechnology patents has emerged to date in the US. The patent situation outside the US is even more uncertain. The laws of foreign countries may not protect our rights to the same extent as the laws of the US, and we may fail to seek or obtain patent protection in all major markets. For example, European patent law restricts the patentability of methods of treatment of the human body more than US law does. Our 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. Changes in either the patent laws or interpretation of the patent laws in the US and other countries may diminish the value of our patents or narrow the scope of our patent protection. For example, the federal courts of the US have taken an increasingly dim view of the patent eligibility of certain subject matter, such as naturally occurring nucleic acid sequences, amino acid sequences and certain methods of utilizing same, which include their detection in a biological sample and diagnostic conclusions arising from their detection. Such subject matter, which had long been a staple of the biotechnology and biopharmaceutical industry to protect their discoveries, is now considered, with few exceptions, ineligible in the first instance for protection under the patent laws of the US. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents or in those licensed from a third-party.
Recent patent reform legislation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents. On September 16, 2011, the Leahy-Smith America Invents Act, or the Leahy-Smith Act, was signed into law. The Leahy-Smith Act includes a number of significant changes to United States patent law. These include changes to transition from a “first-to-invent” system to a “first-to-file” system and to the way issued patents are challenged. The formation of the Patent Trial and Appeal Board now provides a quicker and less expensive process for challenging issued patents. The PTO recently developed new regulations and procedures to govern administration of the Leahy-Smith Act, and many of the substantive changes to patent law associated with the Leahy-Smith Act, and in particular, the first inventor-to-file provisions, only became effective on March 16, 2013. Accordingly, it is not clear what, if any, impact the Leahy-Smith Act will have on the operation of our business. However, the Leahy-Smith Act and its implementation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all of which could have a material adverse effect on our business and financial condition.
Moreover, we may be subject to a third-party pre-issuance submission of prior art to the PTO, or become involved in opposition, derivation, reexamination, inter partes review, post-grant review or interference proceedings challenging our patent rights or the patent rights of others. The costs of these proceedings could be substantial and it is possible that our efforts to establish priority of invention would be unsuccessful, resulting in a material adverse effect on our US patent position. An adverse determination in any such submission, patent office trial, proceeding or litigation could reduce the scope of, render unenforceable, or invalidate, our patent rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights. In addition, if the breadth or strength of protection provided by our patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future product candidates.

Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to circumvent our owned or licensed patents by developing similar or alternative technologies or products in a non-infringing manner.
The issuance of a patent does not foreclose challenges to its inventorship, scope, validity or enforceability. Therefore, our owned and licensed patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in loss of exclusivity or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and products. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such product candidates might expire before or shortly after such product 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.
In addition to patents, we and our partners also rely on trade secrets and proprietary know-how, technology and other proprietary information, to maintain our competitive position, particularly where we do not believe patent protection is appropriate or obtainable. However, trade secrets are difficult to protect. Although we have taken steps to protect our trade secrets and unpatented know-how, including entering into confidentiality agreements with third parties, and confidential information and inventions agreements with employees, consultants and advisors, third parties may still obtain this information or we may be unable to protect its rights. If any of these events occurs, or we otherwise lose protection for our trade secrets or proprietary know-how, the value of this information may be greatly reduced and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts inside and outside the United States are less willing or unwilling to protect trade secrets. Moreover, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent them, or those to whom they communicate it, from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our competitive position would be harmed.
Patent protection and other intellectual property protection are crucial to the success of our business and prospects, and there is a substantial risk that such protections will prove inadequate.
If we or our partners are sued for infringing intellectual property rights of third parties, it will be costly and time consuming, and an unfavorable outcome in that litigation would have a material adverse effect on our business.
Our commercial success also depends upon our ability and the ability of any of our future collaborators to develop, manufacture, market and sell our product candidates without infringing the proprietary rights of third parties. Numerous United States and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing products, some of which may be directed at claims that overlap with the subject matter of our intellectual property. For example, Roche has the Cabilly patents in the U.S. that block the commercialization of antibody products derived from a single cell line, like TG-1101. Also, Roche, Biogen Idec, and Genentech hold patents for the use of anti-CD20 antibodies utilized in the treatment of CLL in the U.S. While these patents have been challenged, to the best of our knowledge, those matters were settled in a way that permitted additional anti-CD20 antibodies to be marketed for CLL. If those patents are still enforced at the time we are intending to launch TG-1101, then we will need to either prevail in a litigation to challenge those patents or negotiate a settlement agreement with the patent holders. If we are unable to do so we may be forced to delay the launch of TG-1101 or launch at the risk of litigation for patent infringement, which may have a material adverse effect on our business and results of operations.

In addition, because patent applications can take many years to issue, there may be currently pending applications, unknown to us, which may later result in issued patents that our product candidates or proprietary technologies may infringe. Similarly, there may be issued patents relevant to our product candidates of which we are not aware. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the US and other jurisdictions are typically not published until 18 months after a first filing, or in some cases not at all. Therefore, we cannot know with certainty whether we or our licensors were the first to make the inventions claimed in patents or pending patent applications that we own or licensed, or that we or our licensors were the first to file for patent protection of such inventions.
There is a substantial amount of litigation involving patent and other intellectual property rights in the biotechnology and biopharmaceutical industries generally. If a third party claims that we or any collaborators of ours infringe their intellectual property rights, we may have to:
obtain licenses, which may not be available on commercially reasonable terms, if at all;
abandon an infringing product candidate or redesign its products or processes to avoid infringement;
pay substantial damages, including treble damages and attorneys’ fees, which we may have to pay if a court decides that the product or proprietary technology at issue infringes on or violates the third party’s rights;
pay substantial royalties, fees and/or grant cross licenses to our technology; and/or
defend litigation or administrative proceedings which may be costly whether we win or lose, and which could result in a substantial diversion of our financial and management resources.
No assurance can be given that patents issued to third parties do not exist, have not been filed, or could not be filed or issued, which contain claims covering its products, technology or methods that may encompass all or a portion of our products and methods. Given the number of patents issued and patent applications filed in our technical areas or fields, we believe there is a risk that third parties may allege they have patent rights encompassing our products or methods.
Other product candidates that we may in-license or acquire could be subject to similar risks and uncertainties.
We may need to license certain intellectual property from third parties, and such licenses may not be available or may not be available on commercially reasonable terms.
A third party may hold intellectual property, including patent rights that are important or necessary to the development and commercialization of our products. It may be necessary for us to use the patented or proprietary technology of third parties to commercialize our products, in which case we would be required to obtain a license from these third parties, whom may or may not be interested in granting such a license, on commercially reasonable terms, or our business could be harmed, possibly materially.
We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time consuming and unsuccessful.
Competitors may infringe our patents or the patents of our licensors. To counter infringement or unauthorized use, we may be required to file infringement claims, which typically are very expensive, time-consuming and disruptive of day-to-day business operations. Any claims we assert against accused infringers could provoke these parties to assert counterclaims against us alleging that we infringe their patents; or provoke those parties to petition the PTO to institute inter parties review against the asserted patents, which may lead to a finding that all or some of the claims of the patent are invalid. In addition, in an infringement proceeding, a court may decide that a patent of ours or our licensors is not valid or is unenforceable, or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one or more of our patents at risk of being invalidated, held unenforceable, or interpreted narrowly. Furthermore, adverse results on US patents may affect related patents in our global portfolio. The adverse result could also put related patent applications at risk of not issuing.

Interference proceedings provoked by third parties or brought by the U.S. Patent and Trademark Office (“PTO”) may be necessary to determine the priority of inventions with respect to our patents or patent applications or those of our collaborators or licensors. An unfavorable outcome could require us to cease using the related technology or to attempt to license rights to it from the prevailing party. The costs of these proceedings could be substantial. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain. Our business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Litigation or interference proceedings may fail and, even if successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our licensors, misappropriation of our trade secrets or confidential information, particularly in countries where the laws may not protect those rights as fully as in the United States.
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. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock.
Westock may be subject us to claims that our consultants or independent contractors have wrongfully used or disclosed alleged trade secrets of their other clients or former employerssecurities litigation, which could cause us to it.
As is common in the biotechnology and pharmaceutical industry, we engage the services of consultants to assist us in the development of our product candidates. Many of these consultants were previously employed at, may have previously been, or are currently providing consulting services to, other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject to claims that these consultants or we have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers or their former or current customers. Even if frivolous or unsubstantiated in nature, litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result inincur substantial costs and be a distraction to management, day-to-day business operations, and the implicated employee(s).
Risks Relating to Our Finances and Capital Requirements
We will need to raise additional capital to continue to operate our business.
As of December 31, 2017, we had approximately $84.8 million in cash and cash equivalents, which in addition to the capital raised during the first quarter of 2018, we believe will be sufficient to fund the Company’s planned operations into the second quarter of 2019. As a result, we will need additional capital to continue our operations beyond that time. Required additional sources of financing to continue our operations in the future might not be available on favorable terms, if at all. If we do not succeed in raising additional funds on acceptable terms, we might be unable to complete planned preclinical and clinical trials or obtain approval of any of our product candidates from the FDA or any foreign regulatory authorities. In addition, we could be forced to discontinue product development, reduce or forego sales and marketing efforts and forego attractive business opportunities. Any additional sources of financing will likely involve the issuance of our equity securities, which would have a dilutive effect to stockholders.
Currently, none of our product candidates have been approved by the FDA or any foreign regulatory authority for sale. Therefore, for the foreseeable future, we will have to fund all of our operations and capital expenditures from cash on hand and amounts raised in future offerings or financings.

We have a history of operating losses, expect to continue to incur losses, and are unable to predict the extent of future losses or when we will become profitable, if ever.
We have not yet applied for or demonstrated an ability to obtain regulatory approval for or commercialize a product candidate. Our short operating history makes it difficult to evaluate our business prospects and consequently, any predictions about our future performance may not be as accurate as they could be if we had a history of successfully developing and commercializing pharmaceutical or biotechnology products. Our prospects must be considered in light of the uncertainties, risks, expenses and difficulties frequently encountered by companies in the early stages of operations and the competitive environment in which we operate.
We have never been profitable and, as of December 31, 2017, we had an accumulated deficit of $354.9 million. We have generated operating losses in all periods since we were incorporated. We expect to make substantial expenditures resulting in increased operating costs in the future and our accumulated deficit will increase significantly as we expand development and clinical trial efforts for our product candidates. Our losses have had, and are expected to continue to have, an adverse impact on our working capital, total assets and stockholders’ equity. Because of the risks and uncertainties associated with product development, we are unable to predict the extent of any future losses or when we will become profitable, if ever. Even if we achieve profitability, we may not be able to sustain or increase profitability on an ongoing basis.
We have not generated any revenue from our product candidates and may never become profitable.
Our ability to become profitable depends upon our ability to generate significant continuing revenues. To obtain significant continuing revenues, we must succeed, either alone or with others, in developing, obtaining regulatory approval for and manufacturing and marketing our product candidates (or utilize early access programs to generate such revenue). To date, our product candidates have not generated any revenues, and we do not know when, or if, we will generate any revenue. Our ability to generate revenue depends on a number of factors, including, but not limited to:
successful completion of preclinical studies of our product candidates;
successful commencement and completion of clinical trials of our product candidates and any future product candidates we advance into clinical trials;
achievement of regulatory approval for our product candidates and any future product candidates we advance into clinical trials (unless we successfully utilize early access programs which allow for revenue generation prior to approval);
manufacturing commercial quantities of our products at acceptable cost levels if regulatory approvals are obtained;
successful sales, distribution and marketing of our future products, if any; and
our entry into collaborative arrangements or co-promotion agreements to market and sell our products.
If we are unable to generate significant continuing revenues, we will not become profitable and we may be unable to continue our operations without continued funding.
We will need substantial additional funding and may be unable to raise capital when needed, which would force us to delay, reduce or eliminate our development programs or commercialization efforts.
We expect to spend substantial amounts on development, including significant amounts on conducting clinical trials for our product candidates, manufacturing clinical supplies and expanding our pharmaceutical development programs. We expect that our monthly cash used by operations will continue to increase for the next several years. We anticipate that we will continue to incur operating losses for the foreseeable future.

We will require substantial additional funds to support our continued research and development activities, as well as the anticipated costs of preclinical studies and clinical trials, regulatory approvals, and eventual commercialization. We anticipate that we will incur operating losses for the foreseeable future. We have based these estimates, however, on assumptions that may prove to be wrong, and we could expend our available financial resources much faster than we currently expect. Further, we will need to raise additional capital to fund our operations and continue to conduct clinical trials to support potential regulatory approval of marketing applications. Future capital requirements will also depend on the extent to which we acquire or in-license additional product candidates. We currently have no commitments or agreements relating to any of these types of transactions.
The amount and timing of our future funding requirements will depend on many factors, including, but not limited to, the following:
the progress of our clinical trials, including expenses to support the trials and milestone payments that may become payable under our license agreements;
the costs and timing of regulatory approvals;
the costs and timing of clinical and commercial manufacturing supply arrangements for each product candidate;
the costs of establishing sales or distribution capabilities;
the success of the commercialization of our products;
our ability to establish and maintain strategic collaborations, including licensing and other arrangements;
the costs involved in enforcing or defending patent claims or other intellectual property rights; and
the extent to which we in-license or invest in other indications or product candidates.
Until we can generate a sufficient amount of product revenue and achieve profitability, we expect to finance future cash needs through public or private equity offerings, debt financings or corporate collaboration and licensing arrangements, as well as through interest income earned on cash balances. If we were to be unable to raise additional capital, we would have to significantly delay, scale back or discontinue one or more of our pharmaceutical development programs. We also may be required to relinquish, license or otherwise dispose of rights to product candidates or products that it would otherwise seek to develop or commercialize itself on terms that are less favorable than might otherwise be available.

Raising additional funds by issuing securities or through licensing or lending arrangements may cause dilution to our existing stockholders, restrict our operations or require us to relinquish proprietary rights.
We may raise additional funds through public or private equity offerings, debt financings or licensing arrangements. To the extent that we raise additional capital by issuing equity securities, the share ownership of existing stockholders will be diluted. Any future debt financing we enter into may involve covenants that restrict our operations, including limitations on our ability to incur liens or additional debt, pay dividends, redeem our stock, make certain investments and engage in certain merger, consolidation or asset sale transactions, among other restrictions.
In addition, if we raise additional funds through licensing arrangements, it may be necessary to relinquish potentially valuable rights to our product candidates, or grant licenses on terms that are not favorable to us. If adequate funds are not available, our ability to achieve profitability or to respond to competitive pressures would be significantly limited and we may be required to delay, significantly curtail or eliminate the development of one or more of our product candidates.
Our tax position could be affected by recent changes in U.S. federal income tax laws.
On December 22, 2017, legislation commonly referred to as the “Tax Cuts and Jobs Act” was signed into law and is generally effective after December 31, 2017. The Tax Cuts and Jobs Act makes significant changes to the U.S. federal income tax rules for taxation of individuals and business entities. Most of the changes applicable to individuals are temporary and apply only to taxable years beginning after December 31, 2017 and before January 1, 2026. For corporations, the Tax Cuts and Jobs Act reduces the top corporate income tax rate to 21% and repeals the corporate alternative minimum tax, limits the deduction for net interest expense, limits the deduction for net operating losses and eliminates net operating loss carrybacks, modifies or repeals many business deductions and credits, shifts the United States toward a more territorial tax system, and imposes new taxes to combat erosion of the U.S. federal income tax base. The Tax Cuts and Jobs Act makes numerous other large and small changes to the federal income tax rules that may affect potential investors and may directly or indirectly affect us. We continue to examine the impact this tax reform legislation may have on our business. However, the effect of the Tax Cuts and Jobs Act on us and our affiliates, whether adverse or favorable, is uncertain, and may not become evident for some period of time. This document does not discuss such legislation or the manner in which it might affect us or purchasers of our common stock. Prospective investors are urged to consult with their legal and tax advisors with respect to the Tax Cuts and Jobs Act and any other regulatory or administrative developments and proposals, and their potential effects on them based on their unique circumstances.

Risks Related to Our Common Stock
We are controlled by current officers, directors and principal stockholders.
Our directors, executive officers, their affiliates, and our principal stockholders beneficially own approximately 39% of our outstanding voting stock, including shares underlying outstanding options and warrants. Our directors, officers and principal stockholders, taken as a whole, have the ability to exert substantial influence over the election of our Board of Directors and the outcome of issues submitted to our stockholders.
Our stock price is, and we expect it to remain, volatile, which could limit investors’ ability to sell stock at a profit.
The trading price of our common stock is likely to be highly volatile and subject to wide fluctuations in price in response to various factors, many of which are beyond our control. These factors include:
publicity regarding actual or potential clinical results relating to products under development by our competitors or us;
delay or failure in initiating, completing or analyzing nonclinical or clinical trials or the unsatisfactory design or results of these trials;
achievement or rejection of regulatory approvals by our competitors or us;
announcements of technological innovations or new commercial products by our competitors or us;
developments concerning proprietary rights, including patents;
developments concerning our collaborations;
regulatory developments in the United States and foreign countries;
economic or other crises and other external factors;
period-to-period fluctuations in our revenues and other results of operations;
changes in financial estimates by securities analysts; and
sales of our common stock.
We will not be able to control many of these factors, and we believe that period-to-period comparisons of our financial results will not necessarily be indicative of our future performance.
In addition, the stock market in general, and the market for biotechnology companies in particular, has experienced extreme price and volume fluctuations that may have been unrelated or disproportionate to the operating performance of individual companies. These broad market and industry factors may seriously harm the market price of our common stock, regardless of our operating performance.
We have not paid dividends in the past and do not expect to pay dividends in the future, and any return on investment may be limited to the value of your stock.
We have never paid dividends on our common stock and do not anticipate paying any dividends for the foreseeable future. You should not rely on an investment in our stock if you require dividend income. Further, you will only realize income on an investment in our stock in the event you sell or otherwise dispose of your shares at a price higher than the price you paid for your shares. Such a gain would result only from an increase in the market price of our common stock, which is uncertain and unpredictable.

Certain anti-takeover provisions in our charter documents and Delaware law could make a third-party acquisition of us difficult. This could limit the price investors might be willing to pay in the future for our common stock.
Provisions in our amended and restated certificate of incorporation and restated bylaws could have the effect of making it more difficult for a third party to acquire, or of discouraging a third party from attempting to acquire, or control us. These factors could limit the price that certain investors might be willing to pay in the future for shares of our common stock. Our amended and restated certificate of incorporation allows us to issue preferred stock without the approval of our stockholders. The issuance of preferred stock could decrease the amount of earnings and assets available for distribution to the holders of our common stock or could adversely affect the rights and powers, including voting rights, of such holders. In certain circumstances, such issuance could have the effect of decreasing the market price of our common stock. Our restated bylaws eliminate the right of stockholders to call a special meeting of stockholders, which could make it more difficult for stockholders to effect certain corporate actions. Any of these provisions could also have the effect of delaying or preventing a change in control.
On July 18, 2014, the Board of Directors declared a distribution of one right for each outstanding share of common stock. The rights may have certain anti-takeover effects. The rights will cause substantial dilution to a person or group that attempts to acquire us on terms not approved by the Board of Directors unless the offer is conditioned on a substantial number of rights being acquired. However, the rights should not interfere with any merger, statutory share exchange or other business combination approved by the Board of Directors since the rights may be terminated by us upon resolution of the Board of Directors. Thus, the rights are intended to encourage persons who may seek to acquire control of the Company to initiate such an acquisition through negotiations with the Board of Directors. However, the effect of the rights may be to discourage a third party from making a partial tender offer or otherwise attempting to obtain a substantial equity position in the equity securities of, or seeking to obtain control of, the Company. To the extent any potential acquirers are deterred by the rights, the rights may have the effect of preserving incumbent management in office.
We may become involved in securities class action litigation that could divert management’s attention, financial resources and harm our business.
The stock markets have from time to time experienced significant price and volume fluctuations that have affected the market prices for the common stock of biotechnology and pharmaceutical companies. These broad market fluctuations may cause the market price of our stock to decline. other company assets.

In the past, securities class action litigation has often been brought against a company following a declineperiods of volatility in the market price of its securities. This risk is especially relevant for us because biotechnology and biopharmaceuticalpharmaceutical companies have experienced significant stock price volatility in recent years. WePast lawsuits and any future lawsuits to which we may become involved in this type of litigation in the future. Litigation often isa party are subject to inherent uncertainties and will likely be expensive and divertstime-consuming to investigate, defend and resolve, and will divert our management’s attention and financial and other resources. The outcome of litigation is necessarily uncertain, and we could be forced to expend significant resources in the defense of these and other suits, and we may not prevail. Any litigation to which we are a party may result in an onerous or unfavorable judgment that may not be reversed upon appeal or in payments of substantial monetary damages or fines, or we may decide to settle this or other lawsuits on similarly unfavorable terms, which could adversely affect our business.business, financial condition, results of operations or stock price.

Future sales of our common stock, including by us or our directors and executive officers or shares issued upon the exercise of currently outstanding options, could cause our stock price to decline.

A substantial portion of our outstanding common stock can be traded without restriction at any time. In addition, a portion of our outstanding common stock is currently restricted as a result of federal securities laws, but can be sold at any time subject to applicable volume limitations. As such, sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares intend to sell shares, by us or others, could reduce the market price of our common stock or impair our ability to raise adequate capital through the sale of additional equity securities. In addition, we have a significant number of shares that are subject to outstanding options. The exercise of these options and the subsequent sale of the underlying common stock could cause a further decline in our stock price. These sales also might make it difficult for us to sell equity securities in the future at a time and at a price that we deem appropriate. We cannot predict the number, timing or size of future issuances or the effect, if any, that any future issuances may have on the market price for our common stock.

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ITEM 2. PROPERTIES.

Our

We maintain corporate and executive office is locatedspace in New York, New York. OurYork, and Edison, New York facility consists of leased office space at 2 Gansevoort Street, 9th Floor, New York, New York 10014.Jersey. We are also currently leasing small office spaces in Cary,Raleigh, North Carolina and Kingsport, Tennessee to accommodate our clinical operations groups.Tennessee. We believe that our existing facilities are adequate to meet our current requirements. We do not own any real property.

ITEM 3. LEGAL PROCEEDINGS.

On January 6, 2017,

We, and our subsidiaries, are not a purported securities class action complaint was filed in New York federal court againstparty to, and our property is not the Company and certainsubject of, its directors, officers or consultants on behalf of all shareholders who purchased or otherwise acquired TG Therapeutics common stock between September 15, 2014 and October 12, 2016 (the “Class Period”). The case was captioned John Lyon v. TG Therapeutics, Michael S. Weiss, Sean A. Power and Robert Niecestro, Case No. 1:17-cv-00112-VM (S.D.N.Y.). The complaint alleged that, throughout the Class Period various statements made by the Company regarding its GENUINE Phase 3 trial were materially false or misleading when made in violation of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder. On January 24, 2017, a second purported class action complaint was filed in New York federal court against the Company and certain of its directors, officers or consultants on behalf of all shareholders who purchased or otherwise acquired TG Therapeutics common stock between September 15, 2014 and October 12, 2016. The case was captioned Kenneth C. Wyzgoski v. TG Therapeutics, Michael S. Weiss, Sean A. Power and Robert Niecestro, Case No. 1:17-cv-00508-VM (S.D.N.Y.). The claims and allegations in the Wyzgoski complaint were substantially identical to those in the Lyon case. By order dated March 23, 2017, the court consolidated the Lyon and Wyzgoski cases into one action, captioned In re TG Therapeutics Securities Litigation, Case No. 1:17-cv-00112-VM (S.D.N.Y.), appointed lead plaintiffs in the case, and approved lead plaintiffs’ selection of lead counsel. On April 5, 2017 the Court so ordered a stipulation pursuant to which lead plaintiffs voluntarily dismissed the consolidated action in its entirety without prejudice. The Company denies the allegations and claims made in the above-referenced actions and no consideration was given by the Company in connection with lead plaintiffs’ voluntary dismissal of the consolidated action.

any material pending legal proceedings.

ITEM 4. MINE SAFETY DISCLOSURES

DISCLOSURES.

None.


PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.

Market Information

Our common stock is listed on the Nasdaq Capital Market and trades under the symbol “TGTX”.

The following table sets forth the high and low closing sale prices of our common stock for the periods indicated.
Fiscal Year Ended December 31, 2017
 
  High
 
 
  Low
 
Fourth Quarter                                                                                   
 $12.30 
 $7.35 
Third Quarter                                                                                   
 $12.70 
 $10.00 
Second Quarter                                                                                   
 $13.85 
 $9.90 
First Quarter                                                                                   
 $14.45 
 $4.20 
Fiscal Year Ended December 31, 2016
 
  High
 
 
  Low
 
Fourth Quarter                                                                                   
 $9.33 
 $4.65 
Third Quarter                                                                                   
 $7.98 
 $5.49 
Second Quarter                                                                                   
 $10.23 
 $5.97 
First Quarter                                                                                   
 $11.41 
 $7.83 

Holders

The number of record holders of our common stock as of March 1, 2018February 24, 2021 was 271.

235.

Dividends

We have never declared or paid any cash dividends on our common stock and do not anticipate paying any cash dividends in the foreseeable future. Any future determination to pay dividends will be at the discretion of our board of directors.

Securities Authorized for Issuance Under Equity Compensation Plans

The following table provides information as of December 31, 2017,2020, regarding the securities authorized for issuance under our equity compensation plan, the TG Therapeutics, Inc. Amended and Restated 2012 Incentive Plan.


 Equity Compensation Plan Information   
Plan Category
Number of securities to be issued upon exercise of outstanding options
Weighted-average exercise price of outstanding options
Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column 1)
Equity compensation plans approved by security holders
--
$--
504,128
Equity compensation plans not approved by security holders
--
--
--
Total
--
$--
504,128

Equity Compensation Plan Information

    

   

    

    

Number of

securities

remaining

available for

Number of

future issuance

securities to be

under equity

issued upon

Weighted-average

compensation

exercise of

exercise price of

plans (excluding

outstanding

outstanding

securities reflected

Plan Category

options

options

in column 1)

Equity compensation plans approved by security holders

2,526,166

$

6.99

4,054,913

Equity compensation plans not approved by security holders

Total

2,526,166

$

6.99

4,054,913

For information about all of our equity compensation plans see Note 5 to our Consolidated Financial Statements included in this report.

77


COMMON STOCK PERFORMANCE GRAPH

The following graph compares the cumulative total stockholder return on our common stock for the period from December 31, 2011(1)2015 through December 31, 2017,2020, with the cumulative total return over such period on (i) the U.S. Index of The Nasdaq Stock Market and (ii) the Biotechnology Index of The Nasdaq Stock Market. The graph assumes an investment of $100 on December 31, 2011,2015, in our common stock (at the adjusted closing market price) and in each of the indices listed above, and assumes the reinvestment of all dividends. Measurement points are December 31 of each year.

Diagram

Description automatically generated

                 (1) In connection with the Company having entered into and consummated an exchange transaction agreement (the “Exchange Transaction”) with Opus Point Partners, LLC (“Opus”) and TG Biologics, Inc. (formerly known as TG Therapeutics, Inc.) (“TG Bio”), we used the start date of December 31, 2011 to be in agreement with this transaction.

*     $100 invested on 12/31/11December 31, 2015 in stock or index, including reinvestment of dividends. Fiscal Years ending December 31.

78


ITEM 6. SELECTED FINANCIAL DATA

DATA.

The following Statement of Operations Data for the years ended December 31, 2020, 2019, 2018, 2017 2016, 2015, 2014 and 2013,2016, and Balance Sheet Data as of December 31, 2020, 2019, 2018, 2017 2016, 2015, 2014 and 2013,2016, as set forth below are derived from our audited consolidated financial statements. Audited financial statements prior to 2018 are not contained herein. This financial data should be read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 8. Financial Statements and Supplementary Data.”

 
 
 
 
Years ended December 31,
 
 
 
  2017  
 
 
  2016  
 
 
  2015  
 
 
  2014  
 
 
  2013  
 
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
License revenue
 $152,381 
 $152,381 
 $152,381 
 $152,381 
 $152,381 
 
    
    
    
    
    
Costs and expenses:
    
    
    
    
    
Research and development:
    
    
    
    
    
Noncash stock expense associated with in-licensing agreements
  -- 
  -- 
  -- 
  5,350,094 
  -- 
Noncash compensation
  5,646,716 
  2,742,354 
  4,261,406 
  8,731,566 
  1,041,519 
Other research and development
  96,886,134 
  66,489,820 
  43,445,817 
  26,004,687 
  12,621,161 
Total research and development
  102,532,850 
  69,232,174 
  47,707,223 
  40,086,347 
  13,662,680 
 
    
    
    
    
    
General and administrative:
    
    
    
    
    
Noncash compensation
  10,298,568 
  4,767,645 
  11,435,686 
  12,373,726 
  4,161,629 
Other general and administrative
  6,032,714 
  5,121,690 
  4,189,488 
  3,413,400 
  2,496,461 
Total general and administrative
  16,331,282 
  9,889,335 
  15,625,174 
  15,787,126 
  6,658,090 
 
    
    
    
    
    
Impairment of in-process research and development
  -- 
  -- 
  -- 
  -- 
  2,797,600 
 
    
    
    
    
    
Total costs and expenses
  118,864,132 
  79,121,509 
  63,332,397 
  55,873,473 
  23,118,370 
 
    
    
    
    
    
Operating loss
  (118,711,751)
  (78,969,128)
  (63,180,016)
  (55,721,092)
  (22,965,989)
 
    
    
    
    
    
Other (income) expense:
    
    
    
    
    
Interest income
  (294,478)
  (323,032)
  (174,653)
  (55,049)
  (30,822)
Other (income) expense
  58,739 
  (393,202)
  (56,717)
  115,234 
  (2,456,957)
Total other (income) expense, net
  (235,739)
  (716,234)
  (231,370)
  60,185 
  (2,487,779)
 
    
    
    
    
    
Net loss
 $(118,476,012)
 $(78,252,894)
 $(62,948,646)
 $(55,781,277)
 $(20,478,210)
 
    
    
    
    
    
Basic and diluted net loss per common share
 $(1.91)
 $(1.60)
 $(1.38)
 $(1.64)
 $(0.81)

(in thousands, except per share information)

Years ended December 31, 

    

2020

    

2019

    

2018

    

2017

    

2016

License revenue

$

152

$

152

$

152

$

152

$

152

 

  

 

  

 

  

 

  

 

  

Costs and expenses:

 

  

 

  

 

  

 

  

 

  

Research and development:

 

  

 

  

 

  

 

  

 

  

Noncash stock expense associated with in-licensing agreements

 

 

100

 

4,000

 

 

Noncash compensation

 

13,962

 

5,811

 

5,598

 

5,647

 

2,742

Other research and development

 

151,934

 

148,269

 

149,793

 

96,886

 

66,490

Total research and development

 

165,896

 

154,180

 

159,391

 

102,533

 

69,232

 

  

 

  

 

  

 

  

 

  

General and administrative:

 

  

 

  

 

  

 

  

 

  

Noncash compensation

 

66,327

 

5,523

 

7,288

 

10,298

 

4,767

Other general and administrative

 

41,523

 

9,504

 

7,873

 

6,033

 

5,122

Total general and administrative

 

107,850

 

15,027

 

15,161

 

16,331

 

9,889

 

  

 

  

 

  

 

  

 

  

Total costs and expenses

 

273,746

 

169,207

 

174,552

 

118,864

 

79,121

 

  

 

  

 

  

 

  

 

  

Operating loss

 

(273,594)

 

(169,055)

 

(174,400)

 

(118,712)

 

(78,969)

 

  

 

  

 

  

 

  

 

  

Other (income) expense:

 

  

 

  

 

  

 

  

 

  

Interest expense

 

6,329

 

5,287

 

877

 

845

 

886

Other income

 

(542)

 

(1,471)

 

(1,795)

 

(1,081)

 

(1,602)

Total other (income) expense, net

 

5,787

 

3,816

 

(918)

 

(236)

 

(716)

 

  

 

  

 

  

 

  

 

  

Net loss

$

(279,381)

$

(172,871)

$

(173,482)

$

(118,476)

$

(78,253)

 

  

 

  

 

  

 

  

 

  

Basic and diluted net loss per common share

$

(2.42)

$

(1.96)

$

(2.30)

$

(1.91)

$

(1.60)

Balance Sheet Information:

December 31, 

(in thousands)

    

2020

    

2019

    

2018

    

2017

    

2016

Cash, cash equivalents, investment securities and interest receivable

$

605,426

$

140,435

$

68,901

$

84,825

$

44,969

Total assets

 

625,642

 

163,014

 

83,616

 

97,381

 

54,782

Accumulated deficit

 

(980,597)

 

(701,216)

 

(528,345)

 

(354,863)

 

(236,387)

Total equity

 

519,350

 

38,615

 

24,036

 

66,993

 

35,868

79

 
 
December 31,
 
 
 
  2017  
 
 
  2016  
 
 
  2015  
 
 
  2014  
 
 
  2013  
 
Cash, cash equivalents, investment securities and interest receivable
 $84,825,125 
 $44,968,992 
 $102,416,894 
 $78,861,334 
 $45,431,532 
Total assets
  97,381,535 
  54,781,547 
  113,473,201 
  86,746,890 
  48,112,390 
Accumulated deficit
  (354,862,832)
  (236,386,820)
  (158,133,926)
  (95,185,280)
  (39,404,003)
Total equity
  66,993,055
  35,867,802 
  101,573,302 
  80,101,884 
  40,054,492 

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The following discussion and analysis contains forward-looking statements about our plans and expectations of what may happen in the future. Forward-looking statements are based on a number of assumptions and estimates that are inherently subject to significant risks and uncertainties, and our results could differ materially from the results anticipated by our forward-looking statements as a result of many known or unknown factors, including, but not limited to, those factors discussed in “Item 1A. Risk“Risk Factors.” See also the “Special Cautionary Notice Regarding Forward-Looking Statements” set forth at the beginning of this report.

You should read the following discussion and analysis in conjunction with “Item 8. Financial Statements and Supplementary Data,” and our consolidated financial statements beginning on page F-1 of this report.

Overview

We are

TG Therapeutics is a fully-integrated, commercial stage biopharmaceutical company focused on the acquisition, development and commercialization of novel treatments for B-cell malignancies and autoimmune diseases. In addition to an active research pipeline including five investigational medicines across these therapeutic areas, we have received accelerated approval from the U.S. Food and Drug Administration (FDA) for UKONIQ(umbralisib), for the treatment of adult patients with relapsed or refractory marginal zone lymphoma who have received at least one prior anti-CD20-based regimen and relapsed or refractory follicular lymphoma who have received at least three prior lines of systemic therapies. Currently, the Company is developingwe have two therapies targeting hematological malignancies. TG-1101 (ublituximab) is a novel, glycoengineered monoclonal antibody that targets a unique epitope on the CD20 antigen found on mature B-lymphocytes. We are also developing TGR-1202, an orally available PI3K delta inhibitor. The delta isoform of PI3K is strongly expressedprograms in cells of hematopoietic origin and is believed to be important in the proliferation and survival of B-lymphocytes. Both TG-1101 and TGR-1202 are in clinicalPhase 3 development for the treatment of patients with hematologic malignancies. We also have pre-clinical programs seeking to develop IRAK4 (interleukin-1 receptor-associated kinase 4) inhibitors, BET (Bromodomainrelapsing forms of multiple sclerosis (RMS) and Extra Terminal) inhibitors,patients with chronic lymphocytic leukemia (CLL) and anti-PD-L1 and anti-GITR antibodies.

.
several investigational medicines in Phase 1 clinical development. We also actively evaluate complementary products, technologies and companies for in-licensing, partnership, acquisition and/or investment opportunities. To date, we have not received approval for the sale of any of our drug candidates in any market and, therefore, have not generated any product sales from our drug candidates.
Our license revenues currently consist of license fees arising from our agreement with Ildong. We recognize upfront license fee revenues ratably over the estimated period in which we will have certain significant ongoing responsibilities under the sublicense agreement, with unamortized amounts recorded as deferred revenue.
We have not earned any revenues from the commercial sale of any of our drug candidates.

Our research and development expenses consist primarily of expenses related to in-licensing of new product candidates, fees paid to consultants and outside service providers for clinical and laboratory development, facilities-related and other expenses relating to the design, development, manufacture, testing and enhancement of our drug candidates and technologies. We expense our research and development costs as they are incurred. Research and development expenses for the years ended December 31, 2017, 20162020, 2019 and 20152018 were approximately $96.9$151.9 million, $66.5$148.4 million and $43.4$153.8 million, respectively, excluding non-cashnoncash compensation expenses related to research and development.

The following table sets forth the research and development expenses per project, exclusive of non-cashnoncash compensation expenses, for the periods presented.


 
 
 2017
 
 
 2016 
 
 
 2015  
 
TG-1101                                                   
 $62,441,133 
 $40,839,899 
 $29,816,042 
TGR-1202
  31,963,775 
  21,394,427 
  11,671,889 
Pre-clinical assets / Other                                                       
  2,481,226 
  4,255,494 
  1,957,886 
    Total                                                       
 $96,886,134 
 $66,489,820 
 $43,445,817 

(in thousands)

    

2020

    

2019

    

2018

Ublituximab

$

72,400

$

93,302

$

105,429

Umbralisib

 

66,495

 

46,074

 

42,852

Early Clinical Pipeline & Pre-Clinical

 

13,039

 

8,993

 

5,512

Total

$

151,934

$

148,369

$

153,793

Our general and administrative expenses consist primarily of expenses related to the US launch of UKONIQ, including salaries and related expenses for our commercialization team and commercial development activities. Other general and administrative expenses consist of executive, finance and other administrative personnel, recruitment expenses, professional fees and other corporate expenses, including investor relations, legal activities and facilities-related expenses such as rent expense and amortization of leasehold interest.

expenses.

Our results of operations include non-cashnoncash compensation expenses as a result of the grants of restricted stock options and restricted stock.stock options. Compensation expense for awards of optionsrestricted stock and restricted stock options granted to employees and directors represents the fair value of the award recorded over the respective vesting periods of the individual awards. The expense is included in the respective categories of expense in the consolidated statements of operations. We expect to continue to incur significant non-cashnoncash compensation expenses.

For awards of options

We recognize all share-based payments to employees and restricted stock to consultants and other third-parties,non-employee directors (as compensation for service) as noncash compensation expense is determined atin the “measurement date.” The expense is recognized over the vesting period of the award. Until the measurement date is reached, the total amount of compensation expense remains uncertain. We record compensation expenseconsolidated financial statements based on the fair values of such payments. Stock-based compensation expense recognized each period is based on the value of the awardportion of share-based payment awards that is ultimately expected to vest during the period. Forfeitures are estimated at the reporting date. The awardstime of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

80

In addition, some of the restricted stock and stock options issued to employees, consultants and other third-parties are then revalued, or the total compensation is recalculated based on the then current fair value, at each subsequent reporting date. This results in a change to the amount previously recorded in respect of the equity award grant, and additional expense or a reversal of expense may be recorded in subsequent periods based on changes in the assumptions used to calculate fair value, such as changes in market price, until the measurement date is reached and the compensation expense is finalized.

In addition, certain restricted stock issued to employees veststhird parties vest upon the achievement of certain milestones; therefore,milestones, and accordingly, the total expense is uncertain untiluncertain. Compensation expense for such awards is recognized when the milestone isachievement of such milestones becomes probable.

Our clinical trials will be lengthy and expensive. Even if these trials show that our drug candidates are effective in treating certain indications, there is no guarantee that we will be able to record commercial sales of any of our drug candidates in the near future. In addition, we expect losses to continue as we continue to fund in-licensing and development of new drug candidates. As we continuefurther our development efforts, we may enter into additional third-party collaborative agreements and may incur additional expenses, such as licensing fees and milestone payments. In addition, we maywill need to establish themaintain and expand our commercial infrastructure required to manufacture, marketfor the manufacturing, marketing and sellselling of UKONIQ and our drug candidates following approval, if any, by the FDA or a foreign health authority, which would result in us incurring significant additional expenses. As a result, our quarterlyannual results may fluctuate and a quarter-by-quarteryear-by-year comparison of our operating results may not be a meaningful indication of our future performance.


RESULTS OF OPERATIONS

Years Ended December 31, 2017, 20162020, 2019 and 2015

 Years Ended December 31,
 
 
  2017  
 
 
  2016  
 
 
 2015  
 
 
 
   
 
 
   
 
 
   
 
License revenue
 $152,381 
 $152,381 
 $152,381 
 
    
    
    
Costs and expenses:
    
    
    
Research and development:
    
    
    
   Noncash compensation
  5,646,716 
  2,742,354 
  4,261,406 
   Other research and development
  96,886,134 
  66,489,820 
  43,445,817 
Total research and development
  102,532,850 
  69,232,174 
  47,707,223 
 
    
    
    
General and administrative:
    
    
    
Noncash compensation
  10,298,568 
  4,767,645 
  11,435,686 
Other general and administrative
  6,032,714 
  5,121,690 
  4,189,488 
Total general and administrative
  16,331,282 
  9,889,335 
  15,625,174 
 
    
    
    
Total costs and expenses
  118,864,132 
  79,121,509 
  63,332,397 
 
    
    
    
Operating loss
  (118,711,751)
  (78,969,128)
  (63,180,016)
 
    
    
    
Other income, net
  (235,739)
  (716,234)
  (231,370)
 
    
    
    
Net loss
 $(118,476,012)
 $(78,252,894)
 $(62,948,646)
 
    
    
    
2018

Years Ended December 31, 

(in thousands)

    

2020

    

2019

    

2018

 

  

 

  

 

  

License revenue

$

152

$

152

$

152

 

  

 

  

 

  

Costs and expenses:

 

  

 

  

 

  

Research and development:

 

  

 

  

 

  

Noncash stock expense associated with in-licensing agreements

 

 

100

 

4,000

Noncash compensation

 

13,962

 

5,811

 

5,598

Other research and development

 

151,934

 

148,269

 

149,793

Total research and development

 

165,896

 

154,180

 

159,391

 

  

 

  

 

  

General and administrative:

 

  

 

  

 

  

Noncash compensation

 

66,327

 

5,523

 

7,288

Other general and administrative

 

41,523

 

9,504

 

7,873

Total general and administrative

 

107,850

 

15,027

 

15,161

 

  

 

  

 

  

Total costs and expenses

 

273,746

 

169,207

 

174,552

 

  

 

  

 

  

Operating loss

 

(273,594)

 

(169,055)

 

(174,400)

 

  

 

  

 

  

Other (income) expense, net

 

5,787

 

3,816

 

(918)

 

  

 

  

 

  

Net loss

$

(279,381)

$

(172,871)

$

(173,482)

Years Ended December 31, 20172020 and 2016

2019

License Revenue. License revenue was approximately $152,000 for each of the years ended December 31, 20172020 and 2016.2019. License revenue is related to the amortization of an upfront payment of $2.0 million associated with our license agreement with Ildong. The upfront payment from Ildong will be recognized as license revenue on a straight-line basis through December 2025, which represents the estimated period over which the Companywe will have certain ongoing responsibilities under the sublicense agreement.

Noncash Stock Expense Associated with In-Licensing Agreement (Research and Development). Noncash stock expense associated with in-licensing agreement (research and development) amounted to zero for the year ended December 31, 2020, as compared to $0.1 million during the comparable period in 2019.

81


Noncash Compensation Expense (Research and Development). Noncash compensation expense (research and development) related to equity incentive grants totaled $5.6$14.0 million for the year ended December 31, 2017,2020, as compared to $2.7$5.8 million during the comparable period in 2016.2019. The increase in noncash compensation expense was primarily relateddue to milestone-based vesting of restricted stock grants to personnel and an increase in the measurement date fair value of certain consultant restrictedresearch and development personnel and a higher stock price during the year ended December 31, 2017.

2020.

Other Research and Development Expenses. Other research and development expenses increased by $30.4$3.6 million from $66.5$148.3 million for the year ended December 31, 20162019 to $96.9$151.9 million for the year ended December 31, 2017.2020. The increase in other research and development expenses was dueR&D expense is primarily attributable to new and ongoing clinical development programs and relatedthe achievement of various milestones, offset by a decrease in manufacturing costs for TG-1101 and TGR-1202expense during the year ended December 31, 2017.2020. We expect our other research and development costs to remain relativelyat consistent during 2018 as our UNITY-CLL program winds down and our MS Phase 3 program ramps up.

levels throughout 2021.

Noncash Compensation Expense (General and Administrative). Noncash compensation expense (general and administrative) related to equity incentive grants increased by $5.5$60.8 million from $4.8$5.5 million for the year ended December 31, 20162019 to $10.3$66.3 million during the year ended December 31, 2017.2020. The increase in noncash compensation expense was primarily related to greater compensation expensemore milestone-based vesting of restricted stock granted to executive personnel during the year ended December 31, 2017 related to restricted stock granted to executive personnel.

2020.

Other General and Administrative Expenses. Other general and administrative expenses increased by $0.9$32.0 million from $5.1$9.5 million for the year ended December 31, 20162019 to $6.0$41.5 million for the year ended December 31, 2017. 2020. The increase was due primarily to rent related expensescommercial costs, including personnel, incurred in preparation for the launch of our office space, as well as increased personnel and other general and administrative costs.UKONIQ. We expect our other general and administrative expenses to increase modestly during 2018.

Other2021.

Interest Expense (Income), Net. Other income decreasedInterest expense increased by $0.5$1.0 million from $0.7to $6.3 million for the year ended December 31, 20162020, as compared to $0.2expense of $5.3 million for year ended December 31, 2019. The increase is mainly due to interest expense related to administrative fees in connection with contract manufacturing costs during the year ended December 31, 2020.

Other Income. Other income decreased by $1.0 million to $0.5 million for the year ended December 31, 2017. The decrease is mainly due a decrease in interest income during 2017,2020, as well ascompared to the receipt of a New York City biotechnology tax credit of approximately $0.3$1.5 million for the year ended December 31, 2016.

2019. The decrease in other income is mainly due to a decrease in interest income during the year ended December 31, 2020. We expect our other income to remain at a comparable level during 2021.

Years Ended December 31, 20162019 and 2015

2018

License Revenue.License revenue was approximately $152,000 for each of the years ended December 31, 20162019 and 2015.2018. License revenue is related to the amortization of an upfront payment of $2.0 million associated with our license agreement with Ildong. The upfront payment from Ildong will be recognized as license revenue on a straight-line basis through December 2025, which represents the estimated period over which the Companywe will have certain ongoing responsibilities under the sublicense agreement.

Noncash Stock Expense Associated with In-Licensing Agreement (Research and Development). Noncash stock expense associated with in-licensing agreement (research and development) amounted to $0.1 million for the year ended December 31, 2019, as compared to $4.0 million during the comparable period in 2018. The expense during the year ended December 31, 2018 was recorded in conjunction with the 333,868 total shares of common stock issued to Novimmune and Jiangsu Hengrui as upfront payments for the licenses to the CD47/CD19 and BTK programs.

Noncash Compensation Expense (Research and Development).Noncash compensation expense (research and development) related to equity incentive grants totaled $2.7remained consistent between the two periods totaling $5.8 million for the year ended December 31, 2016,2019, as compared to $4.3$5.6 million during the comparable period in 2015. The decrease in noncash compensation expense was primarily related to milestone-based vesting of restricted stock grants to non-executive personnel during the year ended December 31, 2015, and a decrease in the measurement date fair value of certain consultant restricted stock during the year ended December 31, 2016.

2018.

Other Research and Development Expenses. Expenses. Other research and development expenses increaseddecreased by $23.1$1.5 million from $43.4$149.8 million for the year ended December 31, 20152018 to $66.5$148.3 million for the year ended December 31, 2016.2019. The increasedecrease in other research and development expenses was dueR&D expense is primarily attributable to a $1.0 million licensing fee for the Jubilant sub-license agreement, as well as the ongoingwinding down of our late-stage clinical development programs and related manufacturing costs for TG-1101 and TGR-1202 during the year ended December 31, 2016. We expect our other research and development costs to increase modestly during 2017 as enrollment of additional patients in our Phase 3 clinical trials increases and we prepare for a commercial launch.


2019.

Noncash Compensation Expense (General and Administrative).Noncash compensation expense (general and administrative) related to equity incentive grants decreased by $6.6$1.8 million from $11.4$7.3 million for the year ended December 31, 20152018 to $4.8$5.5 million during the year ended December 31, 2016.2019. The decrease in noncash compensation expense was primarily related to greater measurement date fair valuesmore vesting of certain consultant restricted stock granted to executive personnel during the year ended December 31, 2015.2018.

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Other General and Administrative Expenses. Expenses. Other general and administrative expenses increased by $0.9$1.6 million from $4.2$7.9 million for the year ended December 31, 20152018 to $5.1$9.5 million for the year ended December 31, 2016. 2019. The increase was due primarily to the straight-line rent expense of our new office space, as well as increased personnel and other general and administrative costs. We expect our other general and administrative expenses to increase modestly during 2017.

Other Expense (Income), Net. Other income

Interest Expense. Interest expense increased by $0.5$4.4 million from $0.2to $5.3 million for the year ended December 31, 20152019, as compared to $0.7expense of $0.9 million for year ended December 31, 2018. The increase is mainly due to the interest expense related to the Hercules financing agreement.

Other Income. Other income decreased by $0.3 million to $1.5 million for the year ended December 31, 2016. The increase is mainly due2019, as compared to the receipt of a New York City biotechnology tax credit of approximately $0.3$1.8 million and an increase in interest income for the year ended December 31, 2016.

2018. The decrease in other income is mainly due to a greater change in the fair value of notes payable during the year ended December 31, 2018.

LIQUIDITY AND CAPITAL RESOURCES

Our primarymajor sources of cash have been proceeds from the saleprivate placement and public offering of equity securities, the upfront paymentand in 2019 from our Sublicense Agreementloan and security agreement executed with Ildong, and warrant and option exercises. We haveHercules Capital, Inc. (“Hercules”) (see Note 7 for more information). As of December 31, 2020 we had not yet commercialized anygenerated revenue from drug sales of UKONIQ. UKONIQ first became commercially available in the United States in February of 2021. Even with the commercialization of UKONIQ and the future commercialization of our drug candidates and cannot be sure if we will ever be able to do so. Even if we commercialize one or more of ourother drug candidates, we may not become profitable. Our ability to achieve profitability depends on a number ofour ability to generate revenue and many other factors, including our ability to obtain regulatory approval for our drug candidates,candidates; successfully complete any post-approval regulatory obligationsobligations; and successfully commercialize our drug candidates alone or in partnership. We may continue to incur substantial operating losses even if we begin to generate revenues from our drug candidates.

As of December 31, 2017,2020, we had $84.8$605.4 million in cash and cash equivalents, and investment securities, and interest receivable. Subsequent to the year ended December 31, 2017, we sold a total of approximately 2.9 million shares of common stock under the 2017 At-the-Market Issuance Sales Agreement (the “2017 ATM”) for aggregate net proceeds of approximately $35.3 million.

securities. We anticipate that our cash and cash equivalents, and investment securities as of December 31, 2017 combined with2020 will provide sufficient liquidity for more than a twelve-month period from the additional capital raised in the first quarterdate of 2018 will be sufficient to fund the Company’s planned operations into the second quarter of 2019.filing this Annual Report on Form 10-K. The actual amount of cash that we will need to operate is subject to many factors, including, but not limited to, the timing, design and conduct of clinical trials for our drug candidates. We are dependent upon significant future financing to provide the cash necessary to execute our current operations, including the commercialization of any of our drug candidates.

Cash used in operating activities for the year ended December 31, 20172020 was $93.8$214.5 million as compared to $61.6$132.8 million for the year ended December 31, 2016.2019. The increase in cash used in operating activities was due primarily to increased expenditures associated with our clinical development programs for TG-1101ublituximab and TGR-1202.

umbralisib.

For the year ended December 31, 2017,2020, net cash used in investing activities was $8.2$24.5 million as compared to cash provided byused in investing activities of $26.5$0.7 million for the year ended December 31, 2016.2019. The decreaseincrease in net cash provided byused in investing activities was primarily due to investmentsgreater investment in short-term securities during the year ended December 31, 2017.

2020.

For the year ended December 31, 2017,2020, net cash provided by financing activities of $133.7$679.8 million related to proceeds from our March 2017 offering and our program under an At-the-Market Issuance Sales Agreement (the “ATM Program”), as well asthe net proceeds from the exercise of warrants. For the year ended December 31, 2016, net cash provided by financing activities of $5.0 million related to our program under the ATM Program”), as well as proceeds from the exercise of warrants.


ATM Program
On June 21, 2013, we entered into an At-the-Market Issuance Sales Agreement (the ”2013 ATM”) with MLV & Co. LLC (“MLV”) under which we could issue and sell shares of our common stock, having aggregate offering proceeds of up to $50.0 million, from time to time through MLV, acting as the sales agent. Under the agreement we would pay MLV a commission rate of up to 3.0% of the gross proceeds from the sale of any sharesissuance of common stock sold through MLV.
During the year endedas part of our ATM program and public offerings in May 2020 and December 31, 2014, we sold a total of 4,850,055 shares of common stock under this arrangement for aggregate total gross proceeds of approximately $50.0 million at an average selling price of $10.31 per share. Net proceeds were approximately $48.8 million after deducting commissions and other transaction costs. We have fully utilized the capacity under the 2013 2020.

ATM and, accordingly, no further sales can be made under the 2013 ATM.

Program

In December 2014, we filed a shelf registration statement on Form S-3 (the "2015 S-3"), which was declared effective in January 2015. Under the 2015 S-3, the Company may sell up to a total of $250 million of its securities. In connection with the 2015 S-3, we amended our 2013 At-the-Market Issuance Sales Agreement with MLV (the "2015 ATM") with MLV & Co. LLC (“MLV”) such that we maywere able to issue and sell additional shares of our common stock, having an aggregate offering price of up to $175.0 million, from time to time through MLV and FBR Capital Markets & Co. ("FBR", each of MLV and FBR individually an "Agent" and collectively the "Agents"), acting as the sales agents. Under the 2015 ATM, we paypaid the Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock sold through the Agents.

During the year ended December 31, 2015, we sold a total of 4,094,498 shares of common stock under the 2015 ATM for aggregate total gross proceeds of approximately $68.2 million at an average selling price of $16.66 per share, resulting in net proceeds of approximately $67.0 million after deducting commissions and other transaction costs.
During the year ended December 31, 2016, we sold a total of 570,366 shares of common stock under the 2015 ATM for aggregate total gross proceeds of approximately $4.5 million at an average selling price of $7.88 per share, resulting in net proceeds of approximately $4.4 million after deducting commissions and other transaction costs.

During the year ended December 31, 2017, we sold a total of3,104,253shares of common stock under the 2015 ATM for aggregate total gross proceeds of approximately $31.6 million at an average selling price of $10.18 per share, resulting in net proceeds of approximately $31.0 million after deducting commissions and other transaction costs.

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In May 2017, we filed a shelf registration statement on Form S-3 (the "2017 S-3"), which was declared effective in June 2017, replacing the 2015 S-3.2017. Under the 2017 S-3, the Companywe may sell up to a total of $300 million of its securities. In connection with the 2017 S-3, we entered into an At-the-Market Issuance Sales Agreement (the "2017 ATM") with Jefferies LLC, Cantor Fitzgerald & Co., FBR Capital Markets & Co., SunTrust Robinson Humphrey, Inc., Raymond James & Associates, Inc., Ladenburg Thalmann & Co. Inc. and H.C. Wainwright & Co., LLC (each a "2017 Agent" and collectively, the "2017 Agents"), relating to the sale of shares of our common stock. Under the 2017 ATM we paypaid the 2017 Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock.

During the year ended December 31, 2017,2019, we sold a total of 4,689,41813,620,165 shares of common stock under the 2017 ATM for aggregate total gross proceeds of approximately $47.7$99.3 million at an average selling price of $10.18$7.29 per share, resulting in net proceeds of approximately $46.9$97.5 million after deducting commissions and other transactions costs.


Subsequent

On September 5, 2019, we filed an automatic “shelf registration” statement on Form S-3 (the “2019 WKSI Shelf”) as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act, which registered an unlimited and indeterminate amount of debt or equity securities for future issuance and sale. The 2019 WKSI Shelf was declared effective in September 2019. In connection with the 2019 WKSI Shelf, we entered into an At-the-Market Issuance Sales Agreement (the “2020 ATM”) with Jefferies LLC, Cantor Fitzgerald & Co. and B. Riley Securities, Inc. (each a “2020 Agent” and collectively, the “2020 Agents”), relating to the sale of shares of our common stock. Under the 2020 ATM, we paid the 2020 Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock. In November 2020, we entered into an At-the-Market Issuance Sales Agreement (the “2021 ATM”) with the same terms and agents (each a “2021 Agent” and collectively, the “2021 Agents”) as the 2020 ATM.

During the year ended December 31, 2017,2020, we sold an aggregatea total of 2,889,3448,528,286 shares of common stock pursuant tounder the 20172020 ATM for aggregate total gross proceeds of approximately $35.9$187.5 million at an average selling price of $12.42$21.99 per share, resulting in net proceeds of approximately $35.3$184.2 million after deducting commissions and other transactions costs.

During the year ended December 31, 2020, we sold a total of 804,100 shares of common stock under the 2021 ATM for aggregate total gross proceeds of approximately $33.9 million at an average selling price of $42.18 per share, resulting in net proceeds of approximately $33.3 million after deducting commissions and other transactions costs.

The 2019 WKSI Shelf is currently our only active shelf-registration statement. We may offer any combination of the securities registered under the 2019 WKSI Shelf from time to time in response to market conditions or other circumstances if we believe such a plan of financing is in the best interests of our stockholders. We believe that the 2019 WKSI Shelf provides us with the flexibility to raise additional capital to finance our operations as needed.

Equity Financings

In

On March 2017,1, 2019, we completed an underwrittena public offering of 5,128,2064,100,000 shares of our common stock (plus a 30-day underwriter overallotment option to purchase up to an additional 769,230615,000 shares of common stock, which was exercised) at a price of $9.75$5.87 per share. Proceeds from this offering, including the overallotment, after underwriting discounts and offering expenses were approximately $27.5 million.

On December 22, 2019, we completed a securities purchase agreement with an institutional investor in which we agreed to sell 5,434,783 shares of our common stock at a price of $9.20 per share. Net proceeds from this offering were approximately $50.0 million.

In May 2020, we completed an underwritten public offering of 8,500,000 shares of our common stock (plus an underwriter option to purchase up to an additional 1,275,000 shares of common stock, which was exercised) at a price of $18 per share. Net proceeds from this offering, including the overallotment, option, were approximately $54$165.1 million, net of underwriting discounts and offering expenses of approximately $3.6$10.8 million.

On December 17, 2020, we completed a public offering of 6,320,000 shares of our common stock (plus a 30-day underwriter overallotment option to purchase up to an additional 948,000 shares of common stock, which was exercised) at a price of $43.50 per share. Net proceeds from this offering, including the overallotment, were approximately $297.2 million after underwriting discounts and offering expenses of approximately $19.0 million.


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Debt Financings

On February 28, 2019 (the “Closing Date”), we entered into a term loan facility of up to $60.0 million (“Term Loan”) with Hercules Capital, Inc. (“Hercules”), the proceeds of which will be used research and development programs and for general corporate purposes. The Term Loan is governed by a loan and security agreement, dated February 28, 2019 (the “Loan Agreement”), which provides for up to four separate advances. The first advance of $30.0 million was drawn on the Closing Date. Two additional advances of $10.0 million may be drawn at our option but subject to certain clinical trial milestones, and the fourth advance of $10.0 million, available in minimum increments of $5.0 million, was available through December 15, 2020 subject to the approval of Hercules’ investment committee.

The Term Loan will mature on March 1, 2022 (the “Loan Maturity Date”). Each advance accrues interest at a per annum rate of interest equal to the greater of either (i) the “prime rate” as reported in The Wall Street Journal plus 4.75%, or (ii) 10.25%. The Term Loan provides for interest-only payments until October 1, 2020. The interest-only period may be extended to April 1, 2021 if on or before September 30, 2020, we achieve either the third milestone or we have raised at least $150.0 million in unrestricted net cash proceeds from one or more equity financings, subordinated indebtedness and/or upfront proceeds from business development transactions permitted under the Loan Agreement, in each case after February 7, 2019, and prior to September 30, 2020 (“Milestone IV”). Thereafter, amortization payments will be payable monthly in eighteen installments (or, if the period requiring interest-only payments has been extended to April 1, 2021, in twelve installments) of principal and interest (subject to recalculation upon a change in prime rates). As a result of the Company having raised in excess of $150 million before the required timeline in the Loan Agreement, the interest-only period has been extended to April 1, 2021. At our option upon seven business days’ prior written notice to Hercules, we may prepay all or any portion greater than or equal to $5.0 million of the outstanding advances by paying the entire principal balance (or portion thereof), all accrued and unpaid interest, subject to a prepayment charge of 3.0%, if such advance is prepaid in any of the first twelve months following the Closing Date; 1.5%, if such advance is prepaid after twelve months following the Closing Date but on or prior to twenty-four months following the Closing Date; and 0% thereafter. In addition, a final payment equal to 3.5% of the aggregate principal amount of the loan extended by Hercules is due on the maturity date. Amounts outstanding during an event of default shall be payable on demand and accrue interest at an additional rate of 4.0% per annum of the past due amount outstanding.

The Term Loan is secured by a lien on substantially all of our assets, other than intellectual property, and contains customary covenants and representations, including a liquidity covenant, financial reporting covenant and limitations on dividends, indebtedness, collateral, investments, distributions, transfers, mergers or acquisitions, taxes, corporate changes, deposit accounts, and subsidiaries.

The events of default under the Loan Agreement include, without limitation, and subject to customary grace periods, (1) our failure to make any payments of principal or interest under the Loan Agreement, promissory notes or other loan documents, (2) our breach or default in the performance of any covenant under the Loan Agreement, (3) the occurrence of a material adverse effect, (4) a false or misleading representation or warranty in any material respect, (5) our insolvency or bankruptcy, (6) certain attachments or judgments on the Borrower’s assets, or (7) the occurrence of any material default under certain agreements or obligations involving indebtedness in excess of $750,000. If an event of default occurs, Hercules is entitled to take enforcement action, including acceleration of amounts due under the Loan Agreement.

The Loan Agreement also contains warrant coverage of 2% of the total amount funded. A warrant (the “Hercules Warrant”) was issued to Hercules to purchase 147,058 shares of common stock with an exercise price of $4.08. The Hercules Warrant is exercisable for seven years from the date of issuance. Hercules may exercise the Hercules Warrant either by (a) cash or check or (b) through a net issuance conversion. The shares will be registered and freely tradeable within six months of issuance. We accounted for the Hercules Warrant as an equity instrument since it was indexed to our common shares and met the criteria for classification in shareholders’ equity. The relative fair value of the Hercules Warrant on the date of issuance was approximately $1.0 million and was recorded as debt issuance costs and as an offset to the Term Loan. This amount will be amortized to interest expense using the straight-line method, which approximates the effective interest method, over the life of the Term Loan.

Contract Manufacturer

In 2018, we entered into an agreement with a contract manufacturer for the clinical and potential commercial supply of one of our product candidates. As part of this agreement, the contract manufacturer has agreed to defer payment of certain costs and expenses under the agreement in exchange for the payment of an administrative fee. To date we have incurred expenses related to this agreement of approximately $53.7 million as of December 31, 2020, which include service fees, raw material costs and administrative fees. We have made payments of $37.4 million to the contract manufacturer as of December 31, 2020. Accordingly, as of December 31, 2020, $15.7 million is

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included in current liabilities in the Company’s consolidated balance sheet, of which $4.2 million is due in the first quarter of 2021.  We will incur an administrative fee of six percent (6%) per year starting from the date of invoice issuance. For the years ended December 31, 2020, 2019 and 2018, we have accrued $1.2 million, $1.2 million and zero, respectively, in administrative fees in connection with these costs, which has been included in interest expense in the Company’s consolidated statements of operations.

Leases

In October 2014, we entered into an agreement (the “Office Agreement”) with Fortress Biotech, Inc. (“FBIO”) to occupy approximately 45% of the 24,000 square feet of New York City office space leased by FBIO. The Office Agreement requires us to pay our respective share of the average annual rent and other costs of the 15-year lease. We approximate an average annual rental obligation of $1.4 million under the Office Agreement. We began to occupy this new space in April 2016, with rental payments beginning in the third quarter of 2016. At January 1, 2020, we recognized a lease liability and corresponding right of use (“ROU”) asset based on the present value of the remaining lease payments for all of our leased office spaces, the majority of which is comprised of our New York City office space. The present values of our lease liability and corresponding ROU asset are $12.1 million and $9.3 million, respectively, as of December 31, 2020. Our leases have remaining lease terms of 4 months to 11 years. One lease has a renewal option to extend the lease for an additional term of two years.

Under the Office Agreement, we agreed to pay FBIO our portion of the build-out costs, which have been allocated to us at the 45% rate mentioned above. The allocated build-out costs have been recorded in Leasehold Interest, net on the Company’s consolidated balance sheets and will be amortized over the 15-year term of the Office Agreement. The initial commitment period of the 45% rate was for a period of three (3) years. We and FBIO currently determine actual office space utilization annually and if our utilization differs from the amount we have been billed, we will either receive credits or be assessed incremental utilization charges. As of December 31, 2020, the allocation rate is 65% and will be evaluated again in August 2021 for the following rent year. Also, in connection with this lease, in October 2014 we pledged $0.6 million to secure a line of credit as a security deposit for the Office Agreement, which has been recorded as restricted cash in the accompanying consolidated balance sheets. Additional collateral of $0.6 million was pledged in April 2018 to increase the letter of credit for the office space.

In October 2019, we finalized a five-year lease for office space in New Jersey (the “NJ Lease”). We approximate an average annual rental obligation of $0.3 million under the NJ Lease. We took possession of this space in October 2019, with rental payments beginning in November 2019.

Total rental expense was approximately $2.7 million, $2.7 million and $1.4 million for the years ended December 31, 2020, 2019 and 2018, respectively.

Future minimum lease commitments as of December 31, 2020 total, in the aggregate, approximately $19.5 million through December 31, 2031. Our future minimum lease commitments include our office leases in New York, New Jersey, North Carolina and Tennessee as of December 31, 2020.

OFF-BALANCE SHEET ARRANGEMENTS

We have not entered into any transactions with unconsolidated entities whereby we have financial guarantees, subordinated retained interests, derivative instruments or other contingent arrangements that expose us to material continuing risks, contingent liabilities, or any other obligations under a variable interest in an unconsolidated entity that provides us with financing, liquidity, market risk or credit risk support.

OBLIGATIONS AND COMMITMENTS
As of December 31, 2017, we have known contractual obligations, commitments and contingencies of $15.6 million related to our operating lease obligations.
 
   Payment due by period
 
 
  Total  
 
 
  Less than 1 year  
 
 
  1-3 years  
 
 
  3-5 years  
 
 
  More than 5 years  
 
Contractual obligations
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
Operating leases
 $15,592,733 
 $1,081,927 
 $2,084,258 
 $2,154,566 
 $10,271,981 
    Total
 $15,592,733 
 $1,081,927 
 $2,084,258 
 $2,154,566 
 $10,271,981 
Leases
In October 2014, we entered into an agreement (the “Office Agreement”) with FBIO, to occupy approximately 45% of the 24,000 square feet of New York City office space leased by FBIO, which is now our corporate headquarters. The Office Agreement requires us to pay our respective share of the average annual rent and other costs of the 15-year lease. We approximate an average annual rental obligation of $1.1 million under the Office Agreement. We began to occupy this new space in April 2016, with rental payments beginning in the third quarter of 2016. During the years ended December 31, 2017 and 2016, we recorded rent expense of approximately $1.2 million and $1.4 million, respectively, and at December 31, 2017, have deferred rent of approximately $1.4 million. Mr. Weiss, our Executive Chairman and CEO, is also Executive Vice Chairman of FBIO.

During the year ended December 31, 2017, we agreed to pay FBIO $2.8 million for our portion of the build out costs, which have been allocated to us at the 45% rate mentioned above. The allocated build-out costs have been recorded in leasehold interest and will be amortized over the 15-year term of the Office Agreement. After an initial commitment period of the 45% rate for a period of three (3) years, we and FBIO will determine actual office space utilization annually and if our utilization differs from the amount we have been billed, we will either receive credits or be assessed incremental utilization charges. Also in connection with this lease, in October 2014 we pledged $0.6 million to secure a line of credit as a security deposit for the Office Agreement, which has been recorded as restricted cash in the accompanying consolidated balance sheets.
Total rental expense was approximately $1.4 million, $1.6 million and $0.3 million for the years ended December 31, 2017, 2016 and 2015, respectively.
Future minimum lease commitments as of December 31, 2017 total, in the aggregate, approximately $15.6 million through December 31, 2031. The preceding table shows future minimum lease commitments, which include our office leases in New York, North Carolina and Tennessee, by period as of December 31, 2017.

CRITICAL ACCOUNTING POLICIES

AND SIGNIFICANT JUDGMENTS AND ESTIMATES

The discussion and analysis of our financial condition and results of operations isare based upon our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amount of assets and liabilities and related disclosure of contingent assets and liabilities at the date of our financial statements and the reported amounts of revenues and expenses during the applicable period. Actual results may differ from these estimates under different assumptions or conditions.

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We define critical accounting policies as those that are reflective of significant judgments and uncertainties and which may potentially result in materially different results under different assumptions and conditions. In applying these critical accounting policies, our management uses its judgment to determine the appropriate assumptions to be used in making certain estimates. These estimates are subject to an inherent degree of uncertainty. Our critical accounting policies include the following:


Revenue Recognition. We recognize license revenue in accordance with the revenue recognition guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), or Codification. We analyze each element of our licensing agreement to determine the appropriate revenue recognition. The terms of the license agreement may include payments to us of non-refundable up-front license fees, milestone payments if specified objectives are achieved, and/or royalties on product sales. We recognize revenue from upfront payments over the period of significant involvement under the related agreements unless the fee is in exchange for products delivered or services rendered that represent the culmination of a separate earnings process and no further performance obligation exists under the contract. We recognize milestone payments as revenue upon the achievement of specified milestones only if (1) the milestone payment is non-refundable, (2) substantive effort is involved in achieving the milestone, (3) the amount of the milestone is reasonable in relation to the effort expended or the risk associated with achievement of the milestone, and (4) the milestone is at risk for both parties. If any of these conditions are not met, we defer the milestone payment and recognize it as revenue over the estimated period of performance under the contract.

Stock Compensation. We have granted stock options and restricted stock to employees, directors and consultants, as well as warrants to other third parties. For employee, director and directorconsultant grants the value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Black-Scholes model takes into account volatility in the price of our stock, the risk-free interest rate, the estimated life of the option, the closing market price of our stock and the exercise price. We base our estimates of our stock price volatility on the historical volatility of our common stock and our assessment of future volatility; however, these estimates are neither predictive nor indicative of the future performance of our stock. For purposes of the calculation, we assumed that no dividends would be paid during the life of the options and warrants. The estimates utilized in the Black-Scholes calculation involve inherent uncertainties and the application of management judgment. In addition, we are required to estimate the expected forfeiture rate and only recognize expense for those equity awards expected to vest. As a result, if other assumptions had been used, our recorded stock-based compensation expense could have been materially different from that reported. In addition, because some of the options, restricted stock and warrants issued to employees, consultants and other third-partiesthird parties vest upon the achievement of certain milestones, the total expense is uncertain. Compensation expense for such awards that vest upon the achievement of milestones is recognized when the achievement of such milestone becomes probable.

Total compensation expense for options

Accrued Research and restricted stock issuedDevelopment Expenses. As part of the process of preparing our financial statements, we are required to consultants is determined atestimate our accrued expenses. This process involves reviewing open contracts, communicating with our personnel to identify services that have been performed on our behalf and estimating the “measurement date.” The expense is recognized overlevel of service performed and the vesting periodassociated cost incurred for the options and restricted stock. Until the measurement date is reached, the total amount of compensation expense remains uncertain. We record stock-based compensation expense based on the fair valueservice when we have not yet been invoiced or otherwise notified of the equity awards at the reporting date. These equity awardsactual cost. The majority of our service providers invoice us monthly for services performed or when contractual milestones are then revalued, or the total compensation is recalculated based on the then current fair value, at each subsequent reporting date. This results in a change to the amount previously recorded in respect of the equity award grant, and additional expense or a reversal of expense may be recorded in subsequent periods based on changes in the assumptions used to calculate fair value, such as changes in market price, until the measurement date is reached and the compensation expense is finalized.

In-process Research and Development. All acquired research and development projects are recorded at their fair value as of the date acquisition. The fair values are assessed as of the balance sheet date to ascertain if there has been any impairment of the recorded value. If there is an impairment the asset is written down to its current fair value by the recording of an expense.
Accruals for Clinical Research Organization and Clinical Site Costs.met. We make estimates of costs incurredour accrued expenses as of each balance sheet date in relationour financial statements based on facts and circumstances known to externalus at that time. We periodically confirm the accuracy of our estimates with the service providers and make adjustments, if necessary. Examples of estimated accrued research and development expenses include:

fees paid to contract research organizations (CROs) in connection with clinical studies;
fees paid to contract manufacturing organizations (CMOs);
fees paid to trial sites in connection with clinical studies; and
fees paid to vendors associated with licenses/milestones.

We base our expenses related to clinical research organizations, or CROs, and clinical site costs. We analyzestudies on our estimates of the progress of clinical trials, including levels of patient enrollment, invoicesservices received and contracted costs when evaluating the adequacy of the amount expensedefforts expended pursuant to contracts with multiple CROs that conduct and the related prepaid asset and accrued liability. Significant judgments and estimates must be made and used in determining the accrued balance and expense in any accounting period. We review and accrue CRO expenses andmanage clinical trial study expenses basedstudies on work performed and rely upon estimates of those costs applicable to the stage of completion of a study.  Accrued CRO costs are subject to revisions as such trials progress to completion. Revisions are charged to expense in the period in which the facts that give rise to the revision become known. With respect to clinical site costs, theour behalf. The financial terms of these agreements are subject to an initial negotiation, and vary from contract to contract.contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the clinical expense. Payments under some of these contracts may be uneven, and depend on factors such as the achievementsuccessful enrollment of certain events, the successful recruitment of patients and the completion of portionsclinical trial milestones. In accruing certain service fees, we estimate the time period over which services will be performed, enrollment of patients, number of sites activated and the level of effort to be expended in each period. If the actual timing of the clinical trialperformance of services or similar conditions. The objectivethe level of effort varies from our policy isestimate, we adjust the accrual or prepaid accordingly. Although we do not expect our estimates to matchbe materially different from amounts actually incurred, our understanding of the recordingstatus and timing of expenses in our financial statementsservices performed relative to the actual status and timing of services receivedperformed may vary and efforts expended. As such, expense accruals related to clinical site costs are recognized based on our estimate of the degree of completion of the event or events specified in the specific clinical study or trial contract.


Accounting Related to Goodwill. As of December 31, 2017 and 2016, there was $799,391 of goodwill on our consolidated balance sheets. Goodwill is reviewed for impairment annually, or when events arise that could indicate that an impairment exists. We test for goodwill impairment using a two-step process. The first step compares the fair value of the reporting unit with the unit's carrying value, including goodwill. When the carrying value of the reporting unit is greater than fair value, the unit’s goodwill may be impaired, and the second step must be completed to measure the amount of the goodwill impairment charge, if any. In the second step, the implied fair value of the reporting unit’s goodwill is compared with the carrying amount of the unit’s goodwill. If the carrying amount is greater than the implied fair value, the carrying value of the goodwill must be written down to its implied fair value.

We are required to perform impairment tests annually, at December 31, and whenever events or changes in circumstances suggest that the carrying value of an asset may not be recoverable. For all of our acquisitions, various analyses, assumptions and estimates were made at the time of each acquisition that were used to determine the valuation of goodwill and intangibles. In future years, the possibility exists that changes in forecasts and estimates from those used at the acquisition date could result in impairment indicators.
Accounting For Income Taxes. In preparing our consolidated financial statements, weus reporting amounts that are required to estimate our income taxestoo high or too low in each of the jurisdictions in which we operate. This process involves management estimation of our actual current tax exposure and assessment of temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not likely, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense within the tax provision in the consolidated statements of operations. Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We have fully offset our deferred tax assets with a valuation allowance. Our lack of earnings history and the uncertainty surrounding our ability to generate taxable income prior to the reversal or expiration of such deferred tax assets were the primary factors considered by management in maintaining the valuation allowance.
Fair Value of 5% Notes Payable. We measure certain financial assets and liabilities at fair value on a recurring basis in the financial statements. The hierarchy ranks the quality and reliability of inputs, or assumptions, used in the determination of fair value and requires financial assets and liabilities carried at fair value to be classified and disclosed in one of three categories.
We elected the fair value option for valuing the 5% Notes. We elected the fair value option in order to reflect in our financial statements the assumptions that market participants use in evaluating these financial instruments.
particular period.

RECENTLY ISSUED ACCOUNTING STANDARDS

In May 2017,July 2018, the Financial Accounting Standards Board ("FASB")FASB issued Accounting Standards Update (“ASU”) No. 2017-09, “Scope of Modification Accounting”2018-11, “Leases - Targeted Improvements” (“ASU 2017-09”2018-11”). ASU 2017-09 provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. An entity should account for the effects of a modification unless all the following are met:

The fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified. If the modification does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification.
The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified.
The classification of the modified award as an equity instrumentupdate to ASU 2016-02, Leases (“ASU 2016-02” or a liability instrument“Topic 842”) issued on February 25, 2016. ASU 2016-02 is the same as the classification of the original award immediately before the original award is modified.

              ASU 2017-09 is effective for annual and interim periods beginning on or after December 15, 2017. Early adoption is permitted for public business entities for reporting periods for whichfiscal years beginning January 1, 2019. ASU 2016-02 required companies to adopt the new leases standard at the beginning of the earliest period presented in the financial statements, which is January 1, 2017, using a modified retrospective transition method where lessees must recognize lease assets and liabilities for all leases even though those leases may have expired before the effective date of January 1, 2017. Lessees must also provide the new and enhanced disclosures for each period presented, including the comparative periods.

87

ASU 2018-11 provides an entity with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new lease standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which it adopts the new lease standard will continue to be in accordance with ASC 840, Leases (“ASC 840”). An entity that elects this additional (and optional) transition method must provide the required ASC 840 disclosures for all periods that continue to be in accordance with ASC 840. The amendments do not yet been issued, and all otherchange the existing disclosure requirements in ASC 840.

ASU 2018-11 is effective for public business entities for reportingfiscal years beginning after December 15, 2018, and interim periods for which financial statements have not yet been made available for issuance.within those fiscal years, with earlier adoption permitted. The amendments should be applied prospectively to an award modified on or after the adoption date.Company adopted ASU 2017-092018-11 on January 1, 2018.2019 using a modified retrospective method and will not restate comparative periods. We elected the package of practical expedients permitted under the transition guidance, which allows us to carryforward our historical lease classification and our assessment on whether a contract is or contains a lease. The adoption of this guidance resulted in the addition of material balances of ROU assets and lease liabilities to our consolidated balance sheets at January 1, 2019, primarily relating to our lease of office space (see Note 8). The impact to our consolidated statements of operations was not material as a result of this standard.

In June 2018, the FASB issued ASU No. 2018-07, “Improvements to Nonemployee Share-Based Payment Accounting” (“ASU 2018-07”). ASU 2018-07 expands the scope of FASB Topic 718, Compensation – Stock Compensation (“Topic 718”) to include share-based payment transactions for acquiring goods and services from nonemployees. An entity should only remeasure equity-classified awards for which a measurement date has not been established through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Upon transition, the entity is required to measure these nonemployee awards at fair value as of the adoption date. The entity must not remeasure assets that are completed. Disclosures required at transition include the nature of and reason for the change in accounting principle and, if applicable, quantitative information about the cumulative effect of the change on retained earnings or other components of equity.

ASU 2018-07 is effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606. The Company adopted ASU 2018-07 on January 1, 2019. The adoption of ASU 2017-092018-07 did not have a material effect on our consolidated financial statements as of December 31, 2017.


In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). ASU 2017-04 removes the requirement to compare the implied fair value of goodwill with its carrying amount as part of step 2 of the goodwill impairment test. As a result, under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, ASU 2017-04:
Clarifies the requirements for excluding and allocating foreign currency translation adjustments to reporting units in connection with an entity’s testing of reporting units for goodwill impairment.
Clarifies that an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable.
Makes minor changes to the overview and background sections of certain Accounting Standards Codification (“ASC” or “Codification”) subtopics and topics as part of the Board’s initiative to unify and improve those sections throughout the Codification.

              ASU 2017-04 is effective prospectively for annual and interim periods beginning on or after December 15, 2019, and early adoption is permitted on testing dates after January 1, 2017. The Company does not expect the adoption of ASU 2017-04 to have a material impact on the Company’s condensed consolidated financial statements.
In January 2017, the FASB issued ASU No. 2017-01, “FASB Clarifies the Definition of a Business” (“ASU 2017-01”). ASU 2017-01 clarifies the definition of a business in ASC 805. The amendments in ASU 2017-01 are intended to make application of the guidance more consistent and cost-efficient. The amendments in ASU 2017-01:
Provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated.
Provide that if the screen is not met, (1) to be considered a business, a set must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output and (2) remove the evaluation of whether a market participant could replace missing elements. The amendments provide a framework to assist entities in evaluating whether both an input and a substantive process are present. The framework includes two sets of criteria to consider that depend on whether a set has outputs. Although outputs are not required for a set to be a business, outputs generally are a key element of a business; therefore, the Board has developed more stringent criteria for sets without outputs.
Narrow the definition of the term output so that the term is consistent with how outputs are described in Topic 606.
ASU 2017-01 is effective for annual and interim periods beginning after December 15, 2017, with early adoption permitted for transactions that occurred before the issuance date or effective date of the standard if the transactions were not reported in financial statements that have been issued or made available for issuance.  The Company adopted ASU 2017-01 on January 1, 2018.2019. The adoption of ASU 2017-01 did not have a material effect2018-07 had no impact on our consolidated financial statementsnonemployee performance awards as of December 31, 2017.

In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers" (Topic 606) (“ASU 2014-09”), which supersedes all existing revenue recognition requirements, including most industry-specific guidance. ASU 2014-09 provides a single set of criteria for revenue recognition among all industries. The new standard requires a company to recognize revenue when it transfers goods or services to customers in an amount that reflects the consideration that the Company expects to receive for those goods or services.
ASU 2014-09 includes guidance for determining whether a license transfers to a customer at a point in time or over timethey are measured based on the nature of the entity’s promise to the customer. To determine whether the entity’s promiseoutcome that is to provide a right to access its intellectual property or a right to use its intellectual property, the entity should consider the nature of the intellectual property to which the customer will have rights.
ASU 2014-09 is effective for interim and annual periods beginning after December 15, 2017. The standard allows for two transition methods - full retrospective, in which the standard is applied to each prior reporting period presented, or modified retrospective, in which the cumulative effect of initially applying the standard is recognized at the date of initial adoption.  The Company adopted ASU 2014-09 on January 1, 2018, using the modified retrospective approach. The adoption of ASU 2014-09 did not have a material effect on our consolidated financial statements as of December 31, 2017.
probable.

Other pronouncements issued by the FASB or other authoritative accounting standards group with future effective dates are either not applicable or not significant to our consolidated financial statements.


ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK.

The primary objective of our investment activities is to preserve principal while maximizing our income from investments and minimizing our market risk. We currently invest in government and investment-grade corporate debt in accordance with our investment policy, which we may change from time to time. The securities in which we invest have market risk. This means that a change in prevailing interest rates, and/or credit risk, may cause the fair value of the investment to fluctuate. For example, if we hold a security that was issued with a fixed interest rate at the then-prevailing rate and the prevailing interest rate later rises, the fair value of our investment will probably decline. As of December 31, 2017,2020, our portfolio of financial instruments consists of cash equivalents and short-term interest bearinginterest-bearing securities, including government debt and money market funds. The average duration of all of our held-to-maturity investments held as of December 31, 2017,2020, was less than 12 months. Due to the relativerelatively short-term nature of these financial instruments, we believe there is no material exposure to interest rate risk, and/or credit risk, arising from our portfolio of financial instruments.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

Our consolidated financial statements and the notes thereto, included in Part IV, Item 15(a), part 1, are incorporated by reference into this Item 8.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND

FINANCIAL DISCLOSURES.

Not applicable.

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ITEM 9A. CONTROLS AND PROCEDURES.

Evaluation of Disclosure Controls and Procedures. As of December 31, 2017,2020, management carried out an evaluation, under the supervision and with the participation of our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)). Our disclosure controls and procedures are designed to provide reasonable assurance that information we are required to disclose in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in applicable rules and forms. Based upon that evaluation, our Chief Executive and Chief Financial Officers concluded that, as of December 31, 2017,2020, our disclosure controls and procedures were effective.

Management's

Management’s Annual Report on Internal Control over Financial Reporting. Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f) or Rule 15d-15(f) under the Exchange Act). Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2017.2020. In making this assessment, our management used the criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, or COSO Framework. Our management has concluded that, as of December 31, 2017,2020, our internal control over financial reporting was effective based on these criteria.

The effectiveness of our internal control over financial reporting as of December 31, 20172020 was audited by CohnReznick LLP, our independent registered public accounting firm, as stated in their report appearing below, which expressed an unqualified opinion on the effectiveness of our internal control over financial reporting as of December 31, 2017.


2020.

Changes in Internal Control Over Financial Reporting. There were no changes in our internal control over financial reporting during the quarter ended December 31, 20172020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on the Effectiveness of Controls. Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within our Company have been detected.

89


Report of Independent Registered Public Accounting Firm

To the Board of Directors and

Stockholders of

TG Therapeutics, Inc.

Opinion on Internal Control over Financial Reporting

We have audited TG Therapeutics, Inc. and subsidiaries (the Company’s)“Company’s”) internal control over financial reporting as of December 31, 2017,2020, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2020, based on criteria established in Internal Control—Integrated Framework (2013) issued by COSO.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United Stated)States) (PCAOB), the consolidated balance sheets and the related consolidated statements of operations, stockholders’ equity and cash flows of the Company as of December 31, 2020 and 2019 and for each of the three years in the period ended December 31, 2020 and our report dated March 15, 2018,1, 2021, expressed an unqualified opinion.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ CohnReznick LLP

We have served as the Company’s auditor since 2003.

New York, New York

March 1, 2021

March 15, 2018

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ITEM 9B. OTHER INFORMATION.

None.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 20182021 Annual Meeting of Stockholders.

ITEM 11. EXECUTIVE COMPENSATION.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 20182021 Annual Meeting of Stockholders.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 20182021 Annual Meeting of Stockholders.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 20182021 Annual Meeting of Stockholders.

ITEM 14. PRINCIPAL ACCOUNTANTACCOUNTING FEES AND SERVICES.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 20182021 Annual Meeting of Stockholders.

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PART IV

ITEM 15. EXHIBITS and FINANCIAL STATEMENT SCHEDULES.

1.      Consolidated Financial Statements


The following consolidated financial statements of TG Therapeutics, Inc. are filed as part of this report.

2.      Consolidated Financial Statement Schedules

All schedules are omitted as the information required is inapplicable or the information is presented in the consolidated financial statements or the related notes.

3.     Exhibits


Exhibit

Number

Exhibit

Exhibit Description

Number

Exhibit Description

3.1

Amended and Restated Certificate of Incorporation of TG Therapeutics, Inc. dated April 26, 2012 (incorporated by reference to Exhibit 3.23.1 to the Registrant’s Form 10-Q for the quarter ended June 30, 2012).

Certificate of Amendment to Amended and Restated Certificate of Incorporation of TG Therapeutics, Inc. dated June 9, 2014 (incorporated by reference to Exhibit 3.2 to the Registrant’s Form 10-Q for the quarter ended June 30, 2014).

Amended and Restated Bylaws of TG Therapeutics, Inc. dated July 18, 2014 (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on July 21, 2014).

Specimen common stock certificate (incorporated by reference to Exhibit 4.1 to the Registrant’s Form 10-K for the year ended December 31, 2011).

Form of warrant to purchase common stock of TG Therapeutics, Inc. (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on November 13, 2012).

Form of Warrant issued to stockholders (incorporated by reference to Exhibit 10.34 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011).

Stockholder Protection Rights Agreement, dated July 18, 2014 between TG Therapeutics, Inc. and American Stock Transfer & Trust Company, LLC, as Rights Agent (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on July 21, 2014).

Amended and Restated Convertible Promissory Note, dated March 1, 2011 (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on March 7, 2011).

Description of Securities of TG Therapeutics, Inc. #

10.1


Employment Agreement, effective December 29, 2011, between the Registrant and Michael Weiss (incorporated by reference to Exhibit 10.30 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011). †

Restricted Stock Subscription Agreement, effective December 29, 2011, between the Registrant and Michael Weiss (incorporated by reference to Exhibit 10.31 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011). †

92

10.3

Amendment to Restricted Stock Agreement, dated July 12, 2013, by and between TG Therapeutics, Inc. and Michael S. Weiss (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on July 16, 2013). †

Amendment to Restricted Stock Agreements, dated December 31, 2014, by and between TG Therapeutics, Inc. and Michael S. Weiss (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on January 7, 2015). †

Employment Agreement, effective December 29, 2011, between the Registrant and Sean Power (incorporated by reference to Exhibit 10.32 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011). †

Restricted Stock Subscription Agreement, effective December 29, 2011 between the Registrant and Sean Power (incorporated by reference to Exhibit 10.33 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011). †

Amendment to Restricted Stock Agreement, dated July 12, 2013, by and between TG Therapeutics, Inc. and Sean A. Power (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on July 16, 2013). †

Amendment to Restricted Stock Agreements, dated December 31, 2014, by and between TG Therapeutics, Inc. and Sean A. Power (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on January 7, 2015). †

License Agreement, dated January 30, 2012, by and among the Registrant, GTC Biotherapeutics, Inc., LFB Biotechnologies S.A.S. and LFB/GTC LLC (incorporated by reference to Exhibit 10.35 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2011). *

TG Therapeutics, Inc. Amended and Restated 2012 Incentive Plan, dated May 14, 2012 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q/A for the quarter ended March 31, 2012).

First Amendment to TG Therapeutics, Inc. Amended and Restated 2012 Incentive Plan, filed with the Registrant’s Definitive Proxy Statement for the Annual Meeting of Stockholders on June 4, 2015, filed on April 24, 2015, and incorporated herein by reference.

Second Amendment to TG Therapeutics, Inc. Amended and Restated 2012 Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on June 24, 2020). †

10.13

Sublicense Agreement between TG Therapeutics, Inc. and Ildong Pharmaceutical Co. Ltd., dated November 13, 2012 (incorporated by reference to Exhibit 10.37 to the Registrant’s Form 10-K for the fiscal year ended December 31, 2012). *

License Agreement between TG Therapeutics, Inc. and Ligand Pharmaceuticals Incorporated, dated June 23, 2014 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q for the quarter ended June 30, 2014).*

Licensing

License Agreement between TG Therapeutics, Inc. and Rhizen Pharmaceuticals SA, dated September 22, 2014 (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on January 20, 2015). *


Collaboration Agreement between TG Therapeutics, Inc. and Checkpoint Therapeutics, Inc., dated March 3, 2015 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q for the quarter ended March 31, 2015). *

Sublicense Agreement between TG Therapeutics, Inc. and Checkpoint Therapeutics, Inc., dated May 27, 2016, (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q for the quarter ended June 30, 2016). *

93

Amendment to Employment Agreement, effective January 1, 2017, between TG Therapeutics, Inc. and Michael S. Weiss (incorporated by reference to Exhibit 10.18 to the Registrant’s Form 10-K/A for the year ended December 31, 2016). †

Advisory Agreement, effective January 1, 2017, between TG Therapeutics, Inc. and Caribe BioAdvisors, LLC (incorporated by reference to Exhibit 10.19 to the Registrant’s Form 10-K/A for the year ended December 31, 2016).

License Agreement between TG Therapeutics, Inc. and Jiangsu Hengrui Medicine Co., dated January 8, 2018.2018 (incorporated by reference to Exhibit 10.20 to the Registrant’s Form 10-K for the year ended December 31, 2017). * #

Joint Venture and License Option Agreement by and between TG Therapeutics, Inc. and Novimmune S.A., dated June 18, 2018 (incorporated by reference to Exhibit 10.20 to the Registrant’s Form 10-Q for the quarter ended June 30, 2018). *

10.22

Master Services Agreement between Samsung Biologics Co., Ltd. and TG Therapeutics, Inc., effective February 21, 2018 (incorporated by reference to the Exhibit 10.2 to the Registrant’s Form 10-Q for the quarter ended June 30, 2019). *

10.23

Loan and Security Agreement, dated February 28, 2019, by and among TG Therapeutics, Inc., TG Biologics, Inc. and Hercules Capital, Inc. (incorporated by reference to the Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on March 5, 2019).

10.24

Warrant Agreement, dated February 28, 2019, by and between TG Therapeutics, Inc. and Hercules Capital, Inc. (incorporated by reference to the Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed on March 5, 2019).

10.25

Warrant Agreement, dated February 28, 2019, by and between TG Therapeutics, Inc. and Hercules Technology III, L.P. (incorporated by reference to the Exhibit 10.4 to the Registrant’s Current Report on Form 8-K filed on March 5, 2019).

10.26

Amended and Restated Collaboration Agreement by and between TG Therapeutics, Inc. and Checkpoint Therapeutics, Inc., dated June 19, 2019 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q for the quarter ended June 30, 2019). *

21.1

Subsidiaries of TG Therapeutics, Inc. #

Consent of Independent Registered Public Accounting Firm #

Certification of Principal Executive Officer #

Certification of Principal Financial Officer #

Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 #

Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 #

101

The following financial information from TG Therapeutics, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2017,2020, formatted in XBRL (eXtensibleiXBRL (Inline eXtensible Business Reporting Language): (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statements of Stockholders’ Equity, (iv) Consolidated Statements of Cash Flows, (v) the Notes to Consolidated Financial Statements.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

#

Filed Herewith.

Indicates management contract or compensatory plan or arrangement.

*

Certain portions of this exhibit have been omitted pursuant to Item 601(b)(10) of Regulation S-K.

94

#             

Table of Contents

Filed Herewith.

†            
Indicates management contract or compensatory plan or arrangement.
*            
Confidential treatment has been requested with respect to omitted portions of this exhibit.

TG Therapeutics, Inc.

Consolidated Financial Statements

95


Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders

TG Therapeutics, Inc.

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of TG Therapeutics, Inc. and subsidiaries (the “Company”) as of December 31, 20172020 and 2016,2019, and the related consolidated statements of operations, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2017,2020, and 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, 2017,2020 and 2016,2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017,2020, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2017,2020, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 15, 2018,1, 2021, expressed an unqualified opinion.

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 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 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. 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.

Critical Audit Matter

Critical audit matters are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. We determined that there are no critical audit matters.

/s/ CohnReznick LLP

We have served as the Company’s auditor since 2003.

New York, New York

March 1, 2021

March 15, 2018

F-1


TG Therapeutics, Inc. and Subsidiaries

Consolidated Balance Sheets as of December 31

 
 
   2017
 
 
 2016
 
Assets
 
   
 
 
   
 
Current assets:
 
   
 
 
   
 
Cash and cash equivalents
 $56,717,847 
 $25,031,280 
Short-term investment securities
  27,998,810 
  19,853,860 
Interest receivable
  108,468 
  83,852 
Prepaid research and development
  8,055,486 
  5,678,755 
Other current assets
  436,789 
  216,397 
Total current assets
  93,317,400 
  50,864,144 
Restricted cash
  587,291 
  583,208 
Leasehold interest, net
  2,429,434 
  2,042,281 
Equipment, net
  248,020 
  328,148 
Goodwill
  799,391 
  799,391 
Other assets
  -- 
  164,375 
Total assets
 $97,381,536 
 $54,781,547 
 
    
    
Liabilities and stockholders’ equity
    
    
Current liabilities:
    
    
Accounts payable and accrued expenses
 $25,877,218 
 $15,267,668 
Accrued compensation
  1,800,000 
  1,389,516 
Current portion of deferred revenue
  152,381 
  152,381 
Notes payable
  127,614 
  68,875 
Total current liabilities
  27,957,213 
  16,878,440 
Deferred rent
  1,364,601 
  816,257 
Deferred revenue, net of current portion
  1,066,667 
  1,219,048 
Total liabilities
  30,388,481 
  18,913,745 
Commitments and contingencies
    
    
Stockholders’ equity:
    
    
Preferred stock, $0.001 par value per share (10,000,000 shares authorized, none issued and outstanding as of December 31, 2017 and 2016)
  -- 
  -- 
Common stock, $0.001 par value per share (150,000,000 shares authorized, 73,181,750 and 56,820,422 shares issued, 73,140,441 and 56,779,113 shares outstanding at December 31, 2017 and 2016, respectively)
  73,182 
  56,820 
Additional paid-in capital
  422,017,042 
  272,432,139 
Treasury stock, at cost, 41,309 shares at December 31, 2017 and 2016
  (234,337)
  (234,337)
Accumulated deficit
  (354,862,832)
  (236,386,820)
Total stockholders’ equity
  66,993,055 
  35,867,802 
Total liabilities and stockholders’ equity
 $97,381,536 
 $54,781,547 

(in thousands, except share and per share amounts)

    

2020

    

2019

 

Assets

Current assets:

  

 

  

Cash and cash equivalents

$

553,439

$

112,637

Short-term investment securities

 

51,987

 

27,798

Prepaid research and development

 

5,231

 

8,105

Other current assets

 

1,083

 

611

Total current assets

 

611,740

 

149,151

Restricted cash

 

1,259

 

1,251

Leasehold interest, net

 

2,051

 

2,129

Equipment, net

 

481

 

282

Right of use assets

9,312

9,402

Goodwill

 

799

 

799

Total assets

$

625,642

$

163,014

 

  

 

  

Liabilities and stockholders’ equity

 

  

 

  

Current liabilities:

 

  

 

  

Accounts payable and accrued expenses

$

37,014

$

30,041

Other current liabilities

18,236

48,994

Loan payable – current portion

22,179

Lease liability – current portion

1,669

1,616

Accrued compensation

 

8,456

 

3,798

Total current liabilities

 

87,554

 

84,449

Deferred revenue, net of current portion

 

610

 

762

Long-term debt

7,716

28,970

Lease liability – non-current

10,412

10,218

Total liabilities

 

106,292

 

124,399

Commitments and contingencies

 

  

 

  

Stockholders’ equity:

 

  

 

  

Preferred stock, $0.001 par value per share (10,000,000 shares authorized, NaN issued and outstanding as of December 31, 2020 and December 31, 2019)

 

0

 

0

Common stock, $0.001 par value per share (150,000,000 shares authorized, 140,617,606 and 109,425,243 shares issued, 140,576,297 and 109,383,934 shares outstanding at December 31, 2020 and December 31, 2019, respectively)

 

141

 

109

Additional paid-in capital

 

1,500,040

 

739,956

Treasury stock, at cost, 41,309 shares at December 31, 2020 and December 31, 2019

 

(234)

 

(234)

Accumulated deficit

 

(980,597)

 

(701,216)

Total stockholders’ equity

 

519,350

 

38,615

Total liabilities and stockholders’ equity

$

625,642

$

163,014

The accompanying notes are an integral part of the consolidated financial statements.


F-2

TG Therapeutics, Inc. and Subsidiaries

Consolidated Statements of Operations for the Years Ended December 31

 
 
  2017  
 
 
  2016  
 
 
  2015  
 
 
 
   
 
 
   
 
 
   
 
License revenue
 $152,381 
 $152,381 
 $152,381 
 
    
    
    
Costs and expenses:
    
    
    
Research and development:
    
    
    
   Noncash compensation
  5,646,716 
  2,742,354 
  4,261,406 
   Other research and development
  96,886,134 
  66,489,820 
  43,445,817 
Total research and development
  102,532,850 
  69,232,174 
  47,707,223 
 
    
    
    
General and administrative:
    
    
    
  Noncash compensation
  10,298,568 
  4,767,645 
  11,435,686 
Other general and administrative
  6,032,714 
  5,121,690 
  4,189,488 
Total general and administrative
  16,331,282 
  9,889,335 
  15,625,174 
 
    
    
    
Total costs and expenses
  118,864,132 
  79,121,509 
  63,332,397 
 
    
    
    
Operating loss
  (118,711,751)
  (78,969,128)
  (63,180,016)
 
    
    
    
Other (income) expense:
    
    
    
Interest income
  (294,478)
  (323,032)
  (174,653)
Other (income) expense
  58,739 
  (393,202)
  (56,717)
Total other income, net
  (235,739)
  (716,234)
  (231,370)
 
    
    
    
Net loss
 $(118,476,012)
 $(78,252,894)
 $(62,948,646)
 
    
    
    
Basic and diluted net loss per common share
 $(1.91)
 $(1.60)
 $(1.38)
 
    
    
    
Weighted average shares used in computing basic and diluted net loss per common share
  62,069,570 
  49,041,354 
  45,646,414 

(in thousands, except share and per share amounts)

2020

    

2019

    

2018

  

 

  

 

  

License revenue

$

152

$

152

$

152

 

  

 

  

 

  

Costs and expenses:

 

  

 

  

 

  

Research and development:

 

  

 

  

 

  

Noncash stock expense associated with in-licensing agreements

 

0

 

100

 

4,000

Noncash compensation

 

13,962

 

5,811

 

5,598

Other research and development

 

151,934

 

148,269

 

149,793

Total research and development

 

165,896

 

154,180

 

159,391

 

 

 

  

General and administrative:

 

 

 

  

Noncash compensation

 

66,327

 

5,523

 

7,288

Other general and administrative

 

41,523

 

9,504

 

7,873

Total general and administrative

 

107,850

 

15,027

 

15,161

 

 

 

  

Total costs and expenses

 

273,746

 

169,207

 

174,552

 

  

 

  

 

  

Operating loss

 

(273,594)

 

(169,055)

 

(174,400)

 

  

 

  

 

  

Other expense (income):

 

  

 

  

 

  

Interest expense

 

6,329

 

5,287

 

877

Other income

 

(542)

 

(1,471)

 

(1,795)

Total other expense (income), net

 

5,787

 

3,816

 

(918)

 

  

 

  

 

  

Net loss

$

(279,381)

$

(172,871)

$

(173,482)

 

  

 

  

 

  

Basic and diluted net loss per common share

$

(2.42)

$

(1.96)

$

(2.30)

 

  

 

  

 

  

Weighted-average shares used in computing basic and diluted net loss per common share

 

115,333,693

 

88,368,844

 

75,466,813

The accompanying notes are an integral part of the consolidated financial statements.


F-3

TG Therapeutics, Inc. and Subsidiaries

Consolidated Statements of Stockholders’ Equity for the Years Ended December 31 2017, 2016 and 2015

(in thousands, except share amounts)

    

    

    

Additional

    

    

    

Common Stock

paid-in

Treasury Stock  

Accumulated

Shares

Amount

 capital

Shares

Amount 

Deficit

Total

Balance at January 1, 2018

 

73,181,750

$

73

$

422,017

41,309

$

(234)

$

(354,863)

$

66,993

Issuance of restricted stock

 

1,562,211

 

2

 

(2)

 

 

 

Forfeiture of restricted stock

 

(191,196)

 

*

 

*

 

 

 

Issuance of common stock in At-the-Market offerings (net of offering costs of $2.0 million)

 

9,025,222

 

9

 

113,630

 

 

 

113,639

Compensation in respect of restricted stock granted to employees, directors and consultants

 

 

 

12,886

 

 

 

12,886

Shares issued in connection with in-licensing agreements

333,868

*

4,000

4,000

Net loss

 

 

 

 

 

(173,482)

 

(173,482)

Balance at December 31, 2018

 

83,911,855

84

552,531

41,309

(234)

(528,345)

24,036

Issuance of restricted stock

 

1,851,520

 

1

 

(1)

 

 

 

Warrants issued with debt financing

993

993

Forfeiture of restricted stock

 

(116,463)

 

*

 

*

 

 

 

Issuance of common stock in offerings (net of offering costs of $0.2 million)

10,149,783

10

77,465

77,475

Issuance of common stock in At-the-Market offerings (net of offering costs of $2.0 million)

 

13,620,165

 

14

 

97,533

 

 

 

97,547

Compensation in respect of restricted stock granted to employees, directors and consultants

 

 

 

11,335

 

 

 

11,335

Shares issued in connection with in-licensing agreements

 

8,383

 

*

 

100

 

 

 

100

Net loss

 

 

 

 

 

(172,871)

 

(172,871)

Balance at December 31, 2019

 

109,425,243

109

739,956

41,309

(234)

(701,216)

38,615

Issuance of common stock in connection with exercise of options

35,814

*

146

146

Issuance of restricted stock

 

4,909,829

 

5

 

(5)

 

 

 

Forfeiture of restricted stock

 

(128,666)

 

*

 

 

 

 

Issuance of common stock in offerings (net of offering costs of $29.9 million)

17,043,000

17

462,212

462,229

Issuance of common stock in At-the-Market offerings (net of offering costs of $4.0 million)

 

9,332,386

 

10

 

217,442

 

 

 

217,452

Compensation in respect of restricted stock granted to employees, directors and consultants

 

 

 

80,289

 

 

 

80,289

Net loss

 

 

 

 

 

(279,381)

 

(279,381)

Balance at December 31, 2020

 

140,617,606

$

141

$

1,500,040

41,309

$

(234)

$

(980,597)

$

519,350

 
 
 Common Stock  
 
 
Contingently issuable
 
 
 Additional Paid-in  
 
 
 Treasury Stock
 
 
 Accumulated
 
 
  
 
 
 
 Shares  
 
 
 Amount
 
 
 Shares
 
 
 Capital  
 
 
Shares
 
 
Amount
 
 
 Deficit
 
 
 Total  
 
Balance at January 1, 2015
  44,974,248 
 $44,974 
 $6 
 $175,476,521 
  41,309 
 $(234,337)
 $(95,185,280)
 $80,101,884 
Issuance of common stock in connection with exercise of warrants
  2,946,703 
  2,946 
    
  1,064,393 
    
    
    
  1,067,339 
Issuance of common stock in connection with cashless exercise of warrants
  2,915 
  3 
    
  (3)
    
    
    
  -- 
Issuance of common stock in connection with conversion of notes payable
  522 
  1 
    
  6,924 
    
    
    
  6,925 
Issuance of restricted stock
  1,992,535 
  1,993 
    
  (1,993)
    
    
    
  -- 
Forfeiture of restricted stock
  (31,166)
  (31)
    
  31 
    
    
    
  -- 
Issuance of common stock to related party for cash (See Note 9)
  114,855 
  115 
    
  749,890 
    
    
    
  750,005 
Issuance of common stock in At-the-Market offering (net of offering costs of $1,310,591)
  4,094,498 
  4,094 
    
  66,894,609 
    
    
    
  66,898,703 
Compensation in respect of restricted stock granted to employees, directors and consultants
    
    
    
  15,697,092 
    
    
    
  15,697,092 
Net loss
    
    
    
    
    
    
  (62,948,646)
  (62,948,646)
Balance at December 31, 2015
  54,095,110 
  54,095 
  6 
  259,887,464 
  41,309 
  (234,337)
  (158,133,926)
  101,573,302 
Issuance of common stock in connection with exercise of warrants
  273,370 
  273 
    
  617,969 
    
    
    
  618,242 
Issuance of common stock in connection with conversion of notes payable
  3,710 
  4 
    
  33,013 
    
    
    
  33,017 
Issuance of restricted stock
  1,924,639 
  1,925 
    
  (1,925)
    
    
    
  -- 
Forfeiture of restricted stock
  (46,773)
  (47)
    
  47 
    
    
    
  -- 
Issuance of common stock in At-the-Market offering (net of offering costs of $108,185)
  570,366 
  570 
    
  4,385,566 
    
    
    
  4,386,136 
Compensation in respect of restricted stock granted to employees, directors and consultants
    
    
    
  7,509,999 
    
    
    
  7,509,999 
Adjustment to contingently issuable shares
    
    
  (6)
  6 
    
    
    
  -- 
Net loss
    
    
    
    
    
    
  (78,252,894)
  (78,252,894)
Balance at December 31, 2016
  56,820,422 
  56,820 
  -- 
  272,432,139 
  41,309 
  (234,337)
  (236,386,820)
  35,867,802 
Issuance of common stock in connection with exercise of warrants 
  887,585
 
  888
 
    
  2,142,197
 
    
    
    
  2,143,085
 
Issuance of restricted stock 
  1,836,511
 
  1,837
 
    
  (1,837)
    
    
    
  --
 
Forfeiture of restricted stock 
  (53,875)
  (54)
    
  54
 
    
    
    
  --
 
Issuance of common stock in public offering (net of offering costs of $3.6 million) 
  5,897,436
 
  5,897
 
    
  53,634,115
 
    
    
    
  53,640,012
 
Issuance of common stock in At-the-Market offering (net of offering costs of $1.1 million) 
  7,793,671
 
  7,794
 
    
  77,865,090
 
    
    
    
  77,872,884
 
Compensation in respect of restricted stock granted to employees, directors and consultants 
    
    
    
  15,945,284
 
    
    
    
  15,945,284
 
Net loss 
    
    
    
    
    
    
  (118,476,012)
  (118,476,012)
Balance at December 31, 2017    
  73,181,750
 
 $73,182
 
 $--
 
 $422,017,042
 
  41,309
 
 $(234,337)
 $(354,862,832)
 $66,993,055
 

* Amount less than one thousand dollars.

The accompanying notes are an integral part of the consolidated financial statements.


F-4

TG Therapeutics, Inc. and Subsidiaries

Consolidated Statements of Cash Flows for the Years Ended December 31

 
 
  2017  
 
 
  2016  
 
 
  2015  
 
CASH FLOWS FROM OPERATING ACTIVITIES
 
   
 
 
   
 
 
   
 
 
 
   
 
 
   
 
 
   
 
Consolidated net loss
 $(118,476,012)
 $(78,252,894)
 $(62,948,646)
Adjustments to reconcile consolidated net loss to net cash used in operating activities:
    
    
    
Gain on sale of long-term securities
  -- 
  (33,042)
  -- 
Noncash stock compensation expense
  15,945,284 
  7,509,999 
  15,697,092 
Depreciation and amortization
  82,355 
  62,960 
  15,452 
Amortization of premium on investment securities
  61,320 
  459,429 
  536,142 
Change in fair value of notes payable and accrued interest
  58,739 
  (109,657)
  (56,717)
Changes in assets and liabilities:
    
    
    
Increase in restricted cash
  (4,083)
  (4,065)
  (4,131)
(Increase) decrease in other current assets
  (2,665,222)
  3,564,316 
  (3,105,771)
Decrease (increase) in leasehold interest
  124,947 
  (2,042,281)
  -- 
(Increase) decrease in accrued interest receivable
  (24,616)
  102,169 
  (100,505)
Decrease (increase) in other assets
  161,730 
  (4,784)
  (41,722)
Increase in accounts payable and accrued expenses
  11,020,034 
  6,492,644 
  5,470,915 
Increase in deferred rent
  104,343 
  816,257 
  -- 
Decrease in deferred revenue
  (152,381)
  (152,381)
  (152,381)
Net cash used in operating activities
  (93,763,562)
  (61,591,330)
  (44,690,272)
 
    
    
    
CASH FLOWS FROM INVESTING ACTIVITIES
    
    
    
 
    
    
    
Purchases of equipment
  (2,227)
  (343,985)
  (42,217)
Investment in held-to-maturity securities
  (28,006,270)
  (15,199,922)
  (48,993,652)
Proceeds from maturity of short-term securities
  19,800,000 
  29,500,000 
  24,350,000 
Proceeds from the sale of long-term securities
  -- 
  12,589,219 
  -- 
Net cash (used in) provided by investing activities
  (8,208,497)
  26,545,312 
  (24,685,869)
 
    
    
    
CASH FLOWS FROM FINANCING ACTIVITIES
    
    
    
 
    
    
    
Proceeds from the exercise of warrants
  2,143,085 
  618,242 
  1,067,339 
Proceeds from sale of common stock, net
  131,515,541 
  4,411,233 
  67,760,517 
Deferred financing costs paid
  - 
  (13,506)
  (104,170)
Net cash provided by financing activities
  133,658,626 
  5,015,969 
  68,723,686 
 
    
    
    
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
  31,686,567 
  (30,030,049)
  (652,455)
 
    
    
    
Cash and cash equivalents at beginning of year
  25,031,280 
  55,061,329 
  55,713,784 
 
    
    
    
CASH AND CASH EQUIVALENTS AT END OF YEAR
 $56,717,847 
 $25,031,280 
 $55,061,329 
 NONCASH TRANSACTIONS
    
    
    
 Reclassification of deferred financing costs to additional paid-in capital
 $(2,645)
 $(25,097)
 $(111,810)
Conversion of convertible notes payable to common stock
  -- 
 $33,017 
 $6,924 

(in thousands)

    

2020

    

2019

    

2018

CASH FLOWS FROM OPERATING ACTIVITIES

 

  

 

  

 

  

 

  

 

  

 

  

Net loss

$

(279,381)

$

(172,871)

$

(173,482)

Adjustments to reconcile net loss to net cash used in operating activities:

 

  

 

  

 

  

Noncash stock compensation expense

 

80,289

 

11,335

 

12,886

Shares issued in connection with in-licensing agreement

 

0

 

100

 

4,000

Depreciation and amortization

 

158

 

100

 

88

Amortization of premium on investment securities

 

(30)

 

(257)

 

(119)

Amortization of debt issuance costs

925

772

0

Amortization of leasehold interest

216

182

135

Noncash change in lease liability and right of use asset

2,325

2,519

0

Change in fair value of notes payable

 

748

 

124

 

(61)

Changes in assets and liabilities:

 

 

 

  

Decrease (increase) in other current assets

2,263

1,395

(1,638)

(Increase) decrease in accrued interest receivable

 

(6)

 

(11)

 

14

Increase (decrease) in accounts payable and accrued expenses

 

11,631

 

(4,795)

 

10,957

(Decrease) increase in lease liabilities

(1,988)

(1,548)

0

(Decrease) increase in interest payable

(43)

1,491

0

(Decrease) increase in other liabilities

 

(31,462)

 

28,810

 

18,350

Decrease in deferred revenue

 

(152)

 

(152)

 

(152)

Net cash used in operating activities

 

(214,507)

 

(132,806)

 

(128,925)

 

  

 

  

 

  

CASH FLOWS FROM INVESTING ACTIVITIES

 

  

 

  

 

  

Proceeds from maturity of short-term securities

 

43,250

 

29,250

 

32,500

Investment in held-to-maturity securities

 

(67,403)

 

(29,837)

 

(31,230)

Purchases of equipment

 

(357)

 

(131)

 

(90)

Net cash (used in) provided by investing activities

 

(24,510)

 

(718)

 

1,180

 

  

 

  

 

  

CASH FLOWS FROM FINANCING ACTIVITIES

 

  

 

  

 

  

Proceeds from sale of common stock, net

679,680

175,021

113,639

Proceeds from exercise of options

147

0

0

Proceeds from debt financings

0

29,987

0

Financing costs paid

 

0

 

(795)

 

0

Net cash provided by financing activities

 

679,827

 

204,213

 

113,639

 

  

 

  

 

  

NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH

 

440,810

 

70,689

 

(14,106)

 

  

 

  

 

  

CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF YEAR

 

113,888

 

43,199

 

57,305

 

  

 

  

 

  

CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF YEAR

$

554,698

$

113,888

$

43,199

 

  

 

  

 

  

 

  

 

  

 

  

Reconciliation to amounts on consolidated balance sheets:

 

  

 

  

 

  

Cash and cash equivalents

$

553,439

$

112,637

$

41,958

Restricted cash

 

1,259

 

1,251

 

1,241

Total cash, cash equivalents and restricted cash 

$

554,698

$

113,888

$

43,199

 

  

 

  

 

  

Cash paid for:

 

  

 

  

 

  

Interest

$

4,501

$

2,622

$

0

NONCASH TRANSACTIONS

 

  

 

  

 

  

Deferred financing costs

$

0

$

988

$

0

Warrants issued with debt financing

$

0

$

993

$

0

Shares issued in connection with in-licensing

$

0

$

100

$

4,000

The accompanying notes are an integral part of the consolidated financial statements.


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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

Unless the context requires otherwise, references in this report to “TG,” “Company,” “we,” “us” and “our” refer to TG Therapeutics, Inc. and our subsidiaries.

NOTE 1 - ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

DESCRIPTION OF BUSINESS

We are

TG Therapeutics is a fully-integrated, commercial stage biopharmaceutical company focused on the acquisition, development and commercialization of novel treatments for B-cell malignancies and autoimmune diseases. In addition to an active research pipeline including five investigational medicines across these therapeutic areas, we have received accelerated approval from the U.S. Food and Drug Administration (FDA) for UKONIQ(umbralisib), for the treatment of adult patients with relapsed or refractory marginal zone lymphoma who have received at least one prior anti-CD20-based regimen and relapsed or refractory follicular lymphoma who have received at least three prior lines of systemic therapies. Currently, we are developinghave two therapies targeting hematologic malignancies. TG-1101 (ublituximab) is a novel, glycoengineered monoclonal antibody that targets a unique epitope on the CD20 antigen found on mature B-lymphocytes. We are also developing TGR-1202 (umbralisib), an orally available PI3K delta inhibitor. The delta isoform of PI3K is strongly expressed in cells of hematopoietic origin and is believed to be important in the proliferation and survival of B-lymphocytes. Both TG-1101 and TGR-1202, or the combination of which is referred to as "U2," areprograms in Phase 3 clinical development for the treatment of patients with hematologic malignancies,relapsing forms of multiple sclerosis (RMS) and patients with TG-1101 alsochronic lymphocytic leukemia (CLL) and several investigational medicines in Phase 31 clinical development for Multiple Sclerosis. Additionally, the Company has recently brought its anti-PD-L1 monoclonal antibody into Phase 1 development and aims to bring additional pipeline assets into the clinic in the future.

development. We also actively evaluate complementary products, technologies and companies for in-licensing, partnership, acquisition and/or investment opportunities. To date, we have not received approval for the sale of any of our drug candidates in any market and, therefore, have not generated any product sales from our drug candidates.

LIQUIDITY AND CAPITAL RESOURCES

We have incurred operating losses since our inception, and expect to continue to incur operating losses for the foreseeable future and may never become profitable. As of December 31, 2017,2020, we have an accumulated deficit of $354.9$980.6 million.

Our major sources of cash have been proceeds from the private placement and public offering of equity securities. We havesecurities, and in 2019 from our loan and security agreement executed with Hercules Capital, Inc. (“Hercules”) (see Note 7 for more information). As of December 31, 2020 we had not yet commercialized anygenerated revenue from drug sales of UKONIQ. UKONIQ first became commercially available in the United States in February of 2021. Even with the commercialization of UKONIQ and the future commercialization of our drug candidates and cannot be sure if we will ever be able to do so. Even if we commercialize one or more of ourother drug candidates, we may not become profitable. Our ability to achieve profitability depends on our ability to generate revenue and  many other factors, including our ability to obtain regulatory approval for our drug candidates; successfully complete any post-approval regulatory obligations; and successfully commercialize our drug candidates alone or in partnership. We may continue to incur substantial operating losses even if we begin to generate revenues from our drug candidates.

As of December 31, 2017,2020, we had $84.8$605.4 million in cash and cash equivalents, and investment securities,securities. We anticipate that our cash and interest receivable. The Company believes its cash, cash equivalents, and investment securities and interest receivable on hand as of December 31, 2017 combined with2020 will provide sufficient liquidity for more than a twelve-month period from the additional capital raiseddate of filing this Annual Report on Form 10-K , during which time the Company plans to continue to commercialize UKONIQ in the first quarter of 2018 (see Note 13) will be sufficient to fund the Company’s planned operations into the second quarter of 2019.United States, which commenced in February 2021. The actual amount of cash that we will need to operate is subject to many factors, including, but not limited to, the timing, design and conduct of clinical trials for our drug candidates. We are dependent upon significant future financing to provide the cash necessary to execute our current operations, including the commercialization of any of our drug candidates.

Our common stock is quoted on the Nasdaq Capital Market and trades under the symbol “TGTX.”

F-6


Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

RECENTLY ISSUED ACCOUNTING STANDARDS

In May 2017,July 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2017-09, “Scope of Modification Accounting”2018-11, Leases - Targeted Improvements (“ASU 2017-09”2018-11”). ASU 2017-09 provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. An entity should account for the effects of a modification unless all the following are met:

The fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified. If the modification does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification.
The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified.
The classification of the modified award as an equity instrumentupdate to ASU 2016-02, Leases (“ASU 2016-02” or a liability instrument“Topic 842”) issued on February 25, 2016. ASU 2016-02 is the same as the classification of the original award immediately before the original award is modified.
             ASU 2017-09 is effective for annual and interim periods beginning on or after December 15, 2017. Early adoption is permitted for public business entities for fiscal years beginning January 1, 2019. ASU 2016-02 required companies to adopt the new leases standard at the beginning of the earliest period presented in the financial statements, which is January 1, 2017, using a modified retrospective transition method where lessees must recognize lease assets and liabilities for all leases even though those leases may have expired before the effective date of January 1, 2017. Lessees must also provide the new and enhanced disclosures for each period presented, including the comparative periods.

ASU 2018-11 provides an entity with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new lease standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity’s reporting for the comparative periods presented in the financial statements in which it adopts the new lease standard will continue to be in accordance with Accounting Standards Codification (“ASC”) ASC 840, Leases (“ASC 840”). An entity that elects this additional (and optional) transition method must provide the required ASC 840 disclosures for all periods that continue to be in accordance with ASC 840. The amendments do not change the existing disclosure requirements in ASC 840.

ASU 2018-11 is effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with earlier adoption permitted. The Company adopted ASU 2018-11 on January 1, 2019 using a modified retrospective method and will not restate comparative periods. We elected the package of practical expedients permitted under the transition guidance, which allows us to carry forward our historical lease classification and our assessment on whether a contract is or contains a lease. The adoption of this guidance resulted in the addition of material balances of ROU assets and lease liabilities to our consolidated balance sheets at January 1, 2019, primarily relating to our lease of office space (see Note 8). The impact to our consolidated statements of operations was not material as a result of this standard.

In June 2018, the FASB issued ASU No. 2018-07, Improvements to Nonemployee Share-Based Payment Accounting (“ASU 2018-07”). ASU 2018-07 expands the scope of FASB Topic 718, Compensation – Stock Compensation (“Topic 718”) to include share-based payment transactions for acquiring goods and services from nonemployees. An entity should only remeasure equity-classified awards for which financial statements havea measurement date has not yet been issued, and all other entities for reporting periods for which financial statements have not yet been made available for issuance. The amendments should be applied prospectivelyestablished through a cumulative-effect adjustment to an award modified on or afterretained earnings as of the beginning of the fiscal year of adoption. Upon transition, the entity is required to measure these nonemployee awards at fair value as of the adoption date. The entity must not remeasure assets that are completed. Disclosures required at transition include the nature of and reason for the change in accounting principle and, if applicable, quantitative information about the cumulative effect of the change on retained earnings or other components of equity.

ASU 2018-07 is effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606. The Company adopted ASU 2017-092018-07 on January 1, 2018.2019. The adoption of ASU 2017-092018-07 did not have a material effect on our consolidated financial statements as of December 31, 2017.

In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). ASU 2017-04 removes the requirement to compare the implied fair value of goodwill with its carrying amount as part of step 2 of the goodwill impairment test. As a result, under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, ASU 2017-04:
Clarifies the requirements for excluding and allocating foreign currency translation adjustments to reporting units in connection with an entity’s testing of reporting units for goodwill impairment.
Clarifies that an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable.
Makes minor changes to the overview and background sections of certain Accounting Standards Codification (“ASC” or “Codification”) subtopics and topics as part of the Board’s initiative to unify and improve those sections throughout the Codification.
              ASU 2017-04 is effective prospectively for annual and interim periods beginning on or after December 15, 2019, and early adoption is permitted on testing dates after January 1, 2017. The Company does not expect the adoption of ASU 2017-04 to have a material impact on the Company’s condensed consolidated financial statements.
In January 2017, the FASB issued ASU No. 2017-01, “FASB Clarifies the Definition of a Business” (“ASU 2017-01”). ASU 2017-01 clarifies the definition of a business in ASC 805. The amendments in ASU 2017-01 are intended to make application of the guidance more consistent and cost-efficient. The amendments in ASU 2017-01:
Provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated.
Provide that if the screen is not met, (1) to be considered a business, a set must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output and (2) remove the evaluation of whether a market participant could replace missing elements. The amendments provide a framework to assist entities in evaluating whether both an input and a substantive process are present. The framework includes two sets of criteria to consider that depend on whether a set has outputs. Although outputs are not required for a set to be a business, outputs generally are a key element of a business; therefore, the Board has developed more stringent criteria for sets without outputs.
Narrow the definition of the term output so that the term is consistent with how outputs are described in Topic 606.
ASU 2017-01 is effective for annual and interim periods beginning after December 15, 2017, with early adoption permitted for transactions that occurred before the issuance date or effective date of the standard if the transactions were not reported in financial statements that have been issued or made available for issuance.  The Company adopted ASU 2017-01 on January 1, 2018.2019. The adoption of ASU 2017-01 did not have a material effect2018-07 had no impact on our consolidated financial statementsnonemployee performance awards as of December 31, 2017.


TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
In May 2014, the FASB issued ASU No.��2014-09, "Revenue from Contracts with Customers" (Topic 606) (“ASU 2014-09”), which supersedes all existing revenue recognition requirements, including most industry-specific guidance. ASU 2014-09 provides a single set of criteria for revenue recognition among all industries. The new standard requires a company to recognize revenue when it transfers goods or services to customers in an amount that reflects the consideration that the Company expects to receive for those goods or services.
ASU 2014-09 includes guidance for determining whether a license transfers to a customer at a point in time or over timethey are measured based on the nature of the entity’s promise to the customer. To determine whether the entity’s promiseoutcome that is to provide a right to access its intellectual property or a right to use its intellectual property, the entity should consider the nature of the intellectual property to which the customer will have rights.
ASU 2014-09 is effective for interim and annual periods beginning after December 15, 2017. The standard allows for two transition methods - full retrospective, in which the standard is applied to each prior reporting period presented, or modified retrospective, in which the cumulative effect of initially applying the standard is recognized at the date of initial adoption.  The Company adopted ASU 2014-09 on January 1, 2018, using the modified retrospective approach. The adoption of ASU 2014-09 did not have a material effect on our consolidated financial statements as of December 31, 2017.
probable.

Other pronouncements issued by the FASB or other authoritative accounting standards with future effective dates are either not applicable or not significant to our condensed consolidated financial statements.


USE OF ESTIMATES

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the applicable reporting period. On an ongoing basis, we evaluate our estimates and judgments, including those related to accrued clinical trial expenses and stock-based compensation. Actual results could differ from those estimates. Such differences could be material to the financial statements.

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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

CASH AND CASH EQUIVALENTS

We treat liquid investments with original maturities of less than three months when purchased as cash and cash equivalents.

RESTRICTED CASH

We record cash pledged or held in trust as restricted cash. As of December 31, 2017,2020 and 2019, we have approximately $0.6$1.3 million of restricted cash pledged to secure a line of credit as a security deposit for an Office Agreement (see Note 9)8).

INVESTMENT SECURITIES

Investment securities at both December 31, 20172020 and 20162019 consist of short-term government securities. We classify these securities as held-to-maturity. Held-to-maturity securities are those securities in which we have the ability and intent to hold the security until maturity. Held-to-maturity securities are recorded at amortized cost, adjusted for the amortization or accretion of premiums or discounts. Premiums and discounts are amortized or accreted over the life of the related held-to-maturity security as an adjustment to yield using the effective interest method.

A decline in the market value of any investment security below cost that is deemed to be other than temporary, results in a reduction in the carrying amount to fair value. The impairment is charged to operations and a new cost basis for the security is established. Other-than-temporary impairment charges are included in interest and other income (expense), net. Unrealized gains, if determined to be temporary, are included in accumulated other comprehensive income in equity. Dividend and interest income are recognized when earned.

CREDIT RISK

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and short-term investments. The Company maintains its cash and cash equivalents and short-term investments with high-credit quality financial institutions. At times, such amounts may exceed federally-insured limits.

REVENUE RECOGNITION

We recognize license

Effective January 1, 2018, the Company began recognizing revenue in accordanceunder ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), using the modified retrospective transition method. The impact of adopting the new revenue recognition guidancestandard was not material to our consolidated financial statements and there was no adjustment to beginning retained earnings on January 1, 2018. The core principle of the FASB Accounting Standards Codification, or Codification. We analyze each element of our licensing agreement to determine the appropriatethis new revenue recognition. The terms of the license agreement may include payments to us of non-refundable up-front license fees, milestone payments if specified objectives are achieved, and/or royalties on product sales. Westandard is that a company should recognize revenue from upfront payments overto depict the periodtransfer of significant involvement underpromised goods or services to customers in an amount that reflects the related agreements unlessconsideration to which the fee iscompany expects to be entitled in exchange for products deliveredthose goods or services renderedservices. The following five steps are applied to achieve that represent the culminationcore principle:

Step 1: Identify the contract with the customer
Step 2: Identify the performance obligations in the contract
Step 3: Determine the transaction price
Step 4: Allocate the transaction price to the performance obligations in the contract
Step 5: Recognize revenue when the company satisfies a performance obligation

F-8


Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of goods or services) if both of the following criteria are met:

The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct).
The entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract).

If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct.

The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate.

RESEARCH AND DEVELOPMENT COSTS

Generally, research and development costs are expensed as incurred. Nonrefundable advance payments for goods or services that will be used or rendered for future research and development activities are deferred and amortized over the period that the goods are delivered or the related services are performed, subject to an assessment of recoverability. We make estimates of  certain costs incurred in relation to external clinical research organizations, or CROs, and clinical site costs. We analyze the progress of clinical trials, including levels of patient enrollment, invoices received and contracted costs when evaluating the adequacy of the amount expensed and the related prepaid asset and accrued liability. Significant judgmentsJudgments and estimates must be made and used in determining the accrued balance and expense in any accounting period.period for expenses that are not explicitly defined by contractual rates and terms. We review and accrue CRO expenses and clinical trial study expenses based on work performed and rely upon estimates of those costs applicable to the stage of completion of a study. Accrued CRO costs are subject to revisions as such trials progress to completion. Revisions are charged to expense in the period in which the facts that give rise to the revision become known. With respect to clinical site costs, the financial terms of these agreements are subject to an initial negotiation and vary from contract to contract. Payments under these contracts may be uneven, and depend on factors such as the achievement of certain events, the successful recruitment of patients, the completion of portions of the clinical trial or similar conditions. The objective of our policy is to match the recording of expenses in our financial statements to the actual services received and efforts expended. As such, certain expense accruals related to clinical site costs are recognized based on our estimate of the degree of completionperformance of the event or events specified in the specific clinical study or trial contract.

Prepaid research and development in our consolidated balance sheets includes, among other things, costs related to agreements with CROs, certain feescosts to third-party service providers related to development and manufacturing services.services as well as clinical development. These development and manufacturing agreements often require payments in advance of services performed or goods received. Accordingly, as of December 31, 20172020 and 2016,December 31, 2019, we recorded approximately $8.1$5.2 million and $5.7$8.1 million, respectively, in prepaid research and development related to such advance agreements.

F-9

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

INCOME TAXES

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in operations in the period that includes the enactment date. If the likelihood of realizing the deferred tax assets or liability is less than “more likely than not,” a valuation allowance is then created.

We, and our subsidiaries, file income tax returns in the U.S. Federalfederal jurisdiction and in various states. We have tax net operating loss carryforwards that are subject to examination for a number of years beyond the year in which they were generated for tax purposes. Since a portion of these net operating loss carryforwards may be utilized in the future, many of these net operating loss carryforwards will remain subject to examination. We recognize interest and penalties related to uncertain income tax positions in income tax expense. Refer to Note 79 for further information foron impact of tax reform.

The Coronavirus Aid, Relief, and Economic Security Act of 2020 (“CARES Act”) was enacted on March 27, 2020 in response to the economic fallout of the COVID-19 pandemic in the United States.  There are several provisions of the CARES Act that were considered in the December 31, 2020 year-end tax provision. However, the Company chose not to utilize any provisions or participate in certain programs due to lack of a benefit to the Company.

STOCK-BASED COMPENSATION

We recognize all share-basedstock-based payments to employees and non-employee directors (as compensation for service) as noncash compensation expense in the consolidated financial statements based on the fair values of such payments. Stock-based compensation expense recognized each period is based on the value of the portion of share-basedstock-based payment awards that is ultimately expected to vest during the period. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.


TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
For share-based payments to consultants and other third-parties (including related parties), noncash compensation expense is determined at the “measurement date.” The expense is recognized over the vesting period of the award. Until the measurement date is reached, the total amount of compensation expense remains uncertain. We record compensation expense based on the fair value of the award at the reporting date. The awards to consultants and other third-parties (including related parties) are then revalued, or the total compensation is recalculated based on the then current fair value, at each subsequent reporting date.
as they occur.

In addition, because some of the options, restricted stock and warrants issued to employees, consultants and other third-partiesthird parties vest upon achievement of certain milestones, the total expense is uncertain. Compensation expense for such awards that vest upon the achievement of milestones is recognized when the achievement of such milestonemilestones becomes probable.

BASIC AND DILUTED NET LOSS PER COMMON SHARE

Basic net loss per share of our common sharestock is calculated by dividing net loss applicable to the common sharesstock by the weighted-average number of our common sharesstock outstanding for the period. Diluted net loss per share of common sharestock is the same as basic net loss per share of common share,stock since potentially dilutive securities from stock options, stock warrants and convertible notespreferred stock would have an antidilutive effect either because the Companywe incurred a net loss during the period presented or because such potentially dilutive securities were out of the money and the Company realized net income during the period presented. The amounts of potentially dilutive securities excluded from the calculation were 4,835,706, 8,033,77911,976,276, 8,361,739 and 7,064,3966,528,932 at December 31, 2017, 20162020, 2019 and 2015,2018, respectively. During the years ended December 31, 2017, 20162020, 2019 and 20152018, the Company incurred a net loss,loss; therefore, all of the securities are antidilutive and excluded from the computation of diluted loss per share.

December 31, 

 

2020

    

2019

    

2018

 Unvested restricted stock

 

9,285,020

 

5,591,786

 

4,595,689

 Options

 

2,526,166

 

2,605,730

 

1,916,900

Warrants

147,058

147,058

0

 Shares issuable upon note conversion

 

18,032

 

17,165

 

16,343

 Total

 

11,976,276

 

8,361,739

 

6,528,932

F-10

 
     December 31,
 2017 2016
 2015
 Unvested restricted stock
4,820,143
  7,142,055 5,859,914
 Shares issuable upon note conversion
 15,563  14,812 17,733
 Warrants --  876,912 1,186,749
 Total 4,835,706  8,033,779 7,064,396

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

LONG-LIVED ASSETS AND GOODWILL

Long-lived assets are reviewed for anpotential impairment loss when circumstances indicate that the carrying value of long-lived tangible and intangible assets with finite lives may not be recoverable. Management’s policy in determining whether an impairment indicator exists, a triggering event, exists comprises measurable operating performance criteria as well as qualitative measures. If an analysis is necessitated by the occurrence of a triggering event, we make certain assumptions in determining the impairment amount. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized.

Goodwill is reviewed for impairment annually, or earlier when events arise that could indicate that an impairment exists. We test for goodwill impairment using a two-step process. The first step compares the fair value of the reporting unit with the unit'sunit’s carrying value, including goodwill. When the carrying value of the reporting unit is greater than fair value, the unit’s goodwill may be impaired, and the second step must be completed to measure the amount of the goodwill impairment charge, if any. In the second step, the implied fair value of the reporting unit’s goodwill is compared with the carrying amount of the unit’s goodwill. If the carrying amount is greater than the implied fair value, the carrying value of the goodwill must be written down to its implied fair value. We will continue to perform impairment tests annually, at December 31, and whenever events or changes in circumstances suggest that the carrying value of an asset may not be recoverable.


TG Therapeutics, Inc. and Subsidiaries
Notes There was 0 impairment to Consolidated Financial Statements
goodwill as of December 31, 2020.

NOTE 2 – CASH AND CASH EQUIVALENTS

The following tables summarize our cash and cash equivalents at December 31, 20172020 and 2016:2019:

 

December 31, 

    

December��31, 

 (in thousands)

2020

2019

 

  

 

  

Checking and bank deposits

$

399,879

$

110,135

Money market funds

 

153,560

 

2,502

    Total

$

553,439

$

112,637

F-11

 
 
  December 31, 2017  
 
 
  December 31, 2016  
 
 
 
   
 
 
   
 
Checking and bank deposits
 $55,681,820 
 $4,052,333 
Money market funds
  1,036,027 
  20,978,947 
    Total
 $56,717,847 
 $25,031,280 

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

NOTE 3 – INVESTMENT SECURITIES

Our investments as of December 31, 20172020 and 20162019 are classified as held-to-maturity. Held-to-maturity investments are recorded at amortized cost. During the year ended December 31, 2016, we liquidated our long-term investment securities with a net carrying amount of approximately $12.6 million, realizing a gain of approximately $33,000 on the sale. The decision to sell our long-term securities was made due to market rate conditions on long-term securities coupled with the recognized gain we were able to yield on the sale of the securities.

The following tables summarize our investment securities at December 31, 20172020 and 2016:

 
 
  December 31, 2017  
 
 
 
  Amortized cost, as adjusted  
 
 
  Gross unrealized holding gains  
 
 
  Gross unrealized holding losses  
 
 
  Estimated fair value  
 
Short-term investments:
 
   
 
 
   
 
 
   
 
 
   
 
Obligations of domestic governmental agencies (maturing between January 2018 and November 2018) (held-to-maturity)
 $27,998,810 
 $--
 $35,235 
 $27,963,575 
    Total short-term investment securities
 $27,998,810 
 $--
 $35,235 
 $27,963,575 

 
 
December 31, 2016
 
 
 
Amortized cost, as adjusted
 
 
Gross unrealized holding gains
 
 
Gross unrealized holding losses
 
 
Estimated fair value
 
Short-term investments:
 
 
 
 
 
 
 
 
 
 
 
 
Obligations of domestic governmental agencies (maturing between February 2017 and September 2017) (held-to-maturity)
 $19,853,860 
 $3,270 
 $2,492 
 $19,854,638 
    Total short-term investment securities
 $19,853,860 
 $3,270 
 $2,492 
 $19,854,638 

2019:

December 31, 2020

    

Amortized

    

Gross

    

Gross

    

cost, as

unrealized

unrealized

Estimated fair

adjusted

holding gains

holding losses

value

Short-term investments:

 

  

 

  

 

  

 

  

Obligations of domestic governmental agencies (maturing between January 2021 and December 2021) (held-to-maturity)

$

51,987

$

1

$

4

$

51,984

Total short-term investment securities

$

51,987

$

1

$

4

$

51,984

December 31, 2019

    

Amortized

    

Gross

    

Gross

    

cost, as

unrealized

unrealized

Estimated fair

adjusted

holding gains

holding losses

value

Short-term investments:

 

  

 

  

 

  

 

  

Obligations of domestic governmental agencies (maturing between January 2020 and September 2020) (held-to-maturity)

$

27,798

$

28

$

$

27,826

Total short-term investment securities

$

27,798

$

28

$

$

27,826

NOTE 4 – FAIR VALUE MEASUREMENTS

We measure certain financial assets and liabilities at fair value on a recurring basis in the financial statements. The fair value hierarchy ranks the quality and reliability of inputs, or assumptions, used in the determination of fair value and requires financial assets and liabilities carried at fair value to be classified and disclosed in one of the following three categories:

Level 1 – quoted prices in active markets for identical assets and liabilities;
Level 2 – inputs other than Level 1 quoted prices that are directly or indirectly observable; and
Level 3 – unobservable inputs that are not corroborated by market data.
Level 1 – quoted prices in active markets for identical assets and liabilities;
Level 2 – inputs other than Level 1 quoted prices that are directly or indirectly observable; and
Level 3 – unobservable inputs that are not corroborated by market data.

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

As of December 31, 20172020 and 2016,2019, the fair values of cash and cash equivalents, restricted cash, and notes and interest payable approximate their carrying value.

At the time of our merger (we were then known as Manhattan Pharmaceuticals, Inc. (“Manhattan”)) with Ariston Pharmaceuticals, Inc. (“Ariston”) in March 2010, Ariston issued $15.5 million of five-year 5% notes payable (the “5% Notes”) in satisfaction of several note payable issuances. The 5% Notes and accrued and unpaid interest thereon are convertible at the option of the holder into common stock at the conversion price of $1,125 per share. Ariston agreed to make quarterly payments on the 5% Notes equal to 50% of the net product cash flow received from the exploitation or commercialization of Ariston’s product candidates, AST-726 and AST-915. We have no obligations under the 5% Notes aside from a) 50% of the net product cash flows from Ariston’s product candidates, if any, payable to noteholders; and b) the conversion feature, discussed above.

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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

The cumulative liability including accrued and unpaid interest of the 5% Notes was approximately $17.5$20.3 million at December 31, 20172020 and $16.7$19.3 million at December 31, 2016. No2019. NaN payments have been made on the 5% Notes as ofthrough December 31, 2017.

2020.

In December 2011, we elected the fair value option for valuing the 5% Notes. The fair value option was elected in order to reflect in our financial statements the assumptions that market participants use in evaluating these financial instruments.

As of December 31, 2013, as a result of expiring intellectual property rights and other factors, it was determined that net product cash flows from AST-726 were unlikely. As we have no0 other obligations under the 5% Notes aside from the net product cash flows and the conversion feature, the conversion feature was used to estimate the 5% Notes’ fair value as of December 31, 20172020 and 2016.2019. The assumptions, assessments and projections of future revenues are subject to uncertainties, difficult to predict, and require significant judgment. The use of different assumptions, applying different judgment to inherently subjective matters and changes in future market conditions could result in significantly different estimates of fair value and the differences could be material to our consolidated financial statements.

The following tables provide the fair value measurements of applicable financial liabilities as of December 31, 20172020 and 2016:

 
                   
Financial liabilities at fair value as of December 31, 2017
 
 
Level 1
 
 
Level 2 
 
 
  Level 3  
 
 
  Total  
 
 
 
   
 
 
   
 
 
   
 
 
   
 
5% Notes
 $-- 
 $-- 
 $127,614 
 $127,614 
    Totals
 $-- 
 $-- 
 $127,614 
 $127,614 
 
          
Financial liabilities at fair value as of December 31, 2016
 
 
  Level 1  
 
 
  Level 2  
 
 
  Level 3  
 
 
  Total  
 
 
 
   
 
 
   
 
 
   
 
 
   
 
5% Notes
 $-- 
 $-- 
 $68,875 
 $68,875 
    Totals
 $-- 
 $-- 
 $68,875 
 $68,875 
2019:

    

Financial liabilities at fair value as of December 31, 2020

(in thousands)

    

Level 1

    

Level 2

    

Level 3

    

Total

  

  

  

  

5% Notes

$

0

$

0

$

938

$

938

Total

$

0

$

0

$

938

$

938

    

Financial liabilities at fair value as of December 31, 2019

    

Level 1

    

Level 2

    

Level 3

    

Total

 

  

 

  

 

  

 

  

5% Notes

$

0

$

0

$

190

$

190

Total

$

0

$

0

$

190

$

190

The Level 3 amounts above represent the fair value of the 5% Notes and related accrued interest.


TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

The following table summarizes the changes in Level 3 instruments for the years ended December 31, 20162019 and 2017:

Balance at January 1, 2016
$211,549
     Interest accrued on face value of 5% Notes
886,084
     Conversion of 5% Notes
(33,017)
     Change in fair value of Level 3 liabilities
(995,741)
Balance at December 31, 2016
68,875
     Interest accrued on face value of 5% Notes
844,797
     Conversion of 5% Notes
--
     Change in fair value of Level 3 liabilities
(786,058)
Balance at December 31, 2017
$127,614
2020:

(in thousands)

Balance at January 1, 2019

    

$

67

Interest accrued on face value of 5% Notes

 

924

Conversion of 5% Notes

 

0

Change in fair value of Level 3 liabilities

 

(801)

Balance at December 31, 2019

190

Interest accrued on face value of 5% Notes

 

976

Conversion of 5% Notes

 

0

Change in fair value of Level 3 liabilities

 

(228)

Balance at December 31, 2020

$

938

The change in the fair value of the Level 3 liabilities is reported in other (income) expense in the accompanying consolidated statements of operations.

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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

NOTE 5 – STOCKHOLDERS’ EQUITY

Preferred Stock

Our amended and restated certificate of incorporation authorizes the issuance of up to 10,000,000 shares of preferred stock, $0.001 par value, with rights senior to those of our common stock, issuable in one or more series. Upon issuance, the Company can determine the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting any series or the designation of such series, any or all of which may be greater than the rights of common stock.

Stockholder Rights Plan

On July 18, 2014, we adopted a stockholder rights plan. The stockholder rights plan is embodied in the Stockholder Protection Rights Agreement dated as of July 18, 2014 (the "Rights Agreement"), between us and American Stock Transfer & Trust Company, LLC, as rights agent (the "Rights Agent").

Accordingly, the Board of Directors declared a distribution of one1 right (a “Right”) for each outstanding share of common stock, to stockholders of record at the close of business on July 28, 2014, for each share of common stock issued (including shares distributed from treasury)Treasury) by us thereafter and prior to the Separation Time (as defined in the Rights Agreement), and for certain shares of common stock issued after the Separation Time. Following the Separation Time, each Right entitles the registered holder to purchase from us one one-thousandth (1/1,000) of a share of Series A Junior Participating Preferred Stock, par value $0.001 per share (the "Preferred Stock"), at a purchase price of $100.00 (the "Exercise Price"), subject to adjustment. The description and terms of the Rights are set forth in the Rights Agreement. Each one one-thousandth of a share of Preferred Stock has substantially the same rights as one1 share of common stock. Subject to the terms and conditions of the Rights Agreement, Rights become exercisable ten days after the public announcement that a “Person” has become an “Acquiring Person” (as each such term is defined in the Rights Agreement). Any Rights held by an Acquiring Person are void and may not be exercised.

If a Person becomes an Acquiring Person, all holders of Rights, except the Acquiring Person, may purchase at the Right’s then-current exercise price, common stock having a market value equal to twice the exercise price. Moreover, at any time after a Person becomes an Acquiring Person (unless such Person acquires 50 percent or more of our common stock then outstanding, as more fully described in the Rights Agreement), the Board of Directors may exchange all (but not less than all) of the then outstanding Rights (other than rights owned by such Person, which would have become void) for shares of common stock at an exchange ratio of one share of common stock per Right, appropriately adjusted in order to protect the interests of holders of Rights.

The Rights Agreement was approved by our Board of Directors on July 18, 2014. The Rights will expire at the close of business on its ten yearten-year anniversary, unless earlier exchanged or terminated by us.

Common Stock

Our amended and restated certificate of incorporation authorizes the issuance of up to 150,000,000 shares of $0.001 par value common stock.

On June 21, 2013, we entered into an At-the-Market Issuance Sales Agreement (the "2013 ATM") with MLV & Co. LLC ("MLV") under which we could issue and sell shares of our common stock, having an aggregate offering price of up to $50.0 million, from time to time through MLV, acting as the sales agent. Under the agreement we would pay MLV a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock sold through MLV.


TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
During the year ended December 31, 2014, we sold a total of 4,850,055 shares of common stock under the 2013 ATM for aggregate total gross proceeds of approximately $50.0 million at an average selling price of $10.31 per share. Net proceeds were approximately $48.9 million after deducting commissions and other transactions costs.
In December 2014, we filed a shelf registration statement on Form S-3 (the "2015 S-3"), which was declared effective in January 2015. Under the 2015 S-3, the Company may sell up to a total of $250 million of its securities. In connection with the 2015 S-3, we amended our 2013 At-the-Market Issuance Sales Agreement with MLV (the "2015 ATM") such that we may issue and sell additional shares of our common stock, having an aggregate offering price of up to $175.0 million, from time to time through MLV and FBR Capital Markets & Co. ("FBR", each of MLV and FBR individually an "Agent" and collectively the "Agents"), acting as the sales agents. Under the 2015 ATM we pay the Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock sold through the Agents.
During the year ended December 31, 2017, we sold a total of3,104,253shares of common stock under the 2015 ATM for aggregate total gross proceeds of approximately $31.6 million at an average selling price of $10.18 per share, resulting in net proceeds of approximately $31.0 million after deducting commissions and other transaction costs. During the year ended December 31, 2016, we sold a total of 570,366 shares of common stock under the 2015 ATM for aggregate total gross proceeds of approximately $4.5 million at an average selling price of $7.88 per share, resulting in net proceeds of approximately $4.4 million after deducting commissions and other transaction costs.
In March 2017, we completed an underwritten public offering of 5,128,206 shares of our common stock (plus a 30-day underwriter overallotment option to purchase up to an additional 769,230 shares of common stock, which was exercised) at a price of $9.75 per share. Net proceeds from this offering, including the overallotment option, were approximately $54 million, net of underwriting discounts and offering expenses of approximately $3.6 million.

In May 2017, we filed a shelf registration statement on Form S-3 (the "2017 S-3"), which was declared effective in June 2017, replacing the 2015 S-3. Under the 2017 S-3, the Companywe may sell up to a total of $300 million of its securities. In connection with the 2017 S-3, we entered into an At-the-Market Issuance Sales Agreement (the "2017 ATM") with Jefferies LLC, Cantor Fitzgerald & Co., FBR Capital Markets & Co., SunTrust Robinson Humphrey, Inc., Raymond James & Associates, Inc., Ladenburg Thalmann & Co. Inc. and H.C. Wainwright & Co., LLC (each a "2017 Agent" and collectively, the "2017 Agents"), relating to the sale of shares of our common stock. Under the 2017 ATM we pay the 2017 Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock.

During the year ended December 31, 2017,2018, we sold a total of 4,689,4189,025,222 shares of common stock under the 2017 ATM for aggregate total gross proceeds of approximately $47.7$115.8 million at an average selling price of $10.18$12.83 per share, resulting in net proceeds of approximately $46.9$113.7 million after deducting commissions and other transactions costs.

Subsequent to

During the year ended December 31, 2017,2019, we sold an aggregatea total of 2,889,34413,620,165 shares of common stock pursuant tounder the 2017 ATM for aggregate total gross proceeds of approximately $35.9$99.3 million at an average selling price of $12.42$7.29 per share, resulting in net proceeds of approximately $35.3$97.5 million after deducting commissions and other transactions costs.

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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

On March 1, 2019, we completed a public offering of 4,100,000 shares of our common stock (plus a 30-day underwriter overallotment option to purchase up to an additional 615,000 shares of common stock, which was exercised) at a price of $5.87 per share. Net proceeds from this offering, including the overallotment, were approximately $27.5 million after underwriting discounts and offering expenses of approximately $0.2 million.

On September 5, 2019, we filed an automatic “shelf registration” statement on Form S-3 (the “2019 WKSI Shelf”) as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act, which registered an unlimited and indeterminate amount of debt or equity securities for future issuance and sale. The 2017 S-32019 WKSI Shelf was declared effective in September 2019. In connection with the 2019 WKSI Shelf, we entered into an At-the-Market Issuance Sales Agreement (the “2020 ATM”) with Jefferies LLC, Cantor Fitzgerald & Co. and B. Riley Securities, Inc. (each a “2020 Agent” and collectively, the “2020 Agents”), relating to the sale of shares of our common stock. Under the 2020 ATM, we pay the 2020 Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock. In November 2020, we entered into an At-the-Market Issuance Sales Agreement (the “2021 ATM”) with the same terms and agents (each a “2021 Agent” and collectively, the “2021 Agents”) as the 2020 ATM.

During the year ended December 31, 2020, we sold a total of 8,528,286 shares of common stock under the 2020 ATM for aggregate total gross proceeds of approximately $187.5 million at an average selling price of $21.99 per share, resulting in net proceeds of approximately $184.2 million after deducting commissions and other transactions costs.

During the year ended December 31, 2020, we sold a total of 804,100 shares of common stock under the 2021 ATM for aggregate total gross proceeds of approximately $33.9 million at an average selling price of $42.18 per share, resulting in net proceeds of approximately $33.3 million after deducting commissions and other transactions costs.

On December 22, 2019, we completed a securities purchase agreement with an institutional investor in which we agreed to sell 5,434,783 shares of our common stock at a price of $9.20 per share. Net proceeds from this offering were approximately $50.0 million.

In May 2020, we completed an underwritten public offering of 8,500,000 shares of our common stock (plus an underwriter option to purchase up to an additional 1,275,000 shares of common stock, which was exercised) at a price of $18 per share. Net proceeds from this offering, including the overallotment, were approximately $165.1 million, net of underwriting discounts and offering expenses of approximately $10.8 million.

On December 17, 2020, we completed a public offering of 6,320,000 shares of our common stock (plus a 30-day underwriter overallotment option to purchase up to an additional 948,000 shares of common stock, which was exercised) at a price of $43.50 per share. Net proceeds from this offering, including the overallotment, were approximately $297.2 million after underwriting discounts and offering expenses of approximately $19.0 million.

The 2019 WKSI Shelf is currently our only active shelf registrationshelf-registration statement. After deducting shares already sold, there is approximately $252.3 million and $216.4 million of common stock that remains available for sale under the 2017 S-3 at December 31, 2017 and post year-end December 31, 2017, respectively. We may offer any combination of the securities registered under the 2017 S-32019 WKSI Shelf from time to time in response to market conditions or other circumstances if we believe such a plan of financing is in the best interests of our stockholders. We believe that the 2017 S-32019 WKSI Shelf provides us with the flexibility to raise additional capital to finance our operations as needed.

Treasury Stock

As of December 31, 20172020 and 2016,2019, 41,309 shares of common stock are being held in Treasury, at a cost of approximately $234,000, representing the fair market value on the date the shares were surrendered to the Company to satisfy employee tax obligations.

Equity Incentive Plans

The TG Therapeutics, Inc. Amended and Restated 2012 Incentive Plan (“2012 Incentive Plan”) was approved by stockholders in June 2015.2020. Pursuant to this amendment, 8,000,000 shares were added to the 2012 Incentive Plan. As of December 31, 20172020 and 2016, no2019, 2,526,166 and 2,605,730 options, respectively, were outstanding and up to an additional 504,1284,054,913 shares may be issued under the 2012 Incentive Plan.Plan.

F-15

Effective as

Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

Stock Options

The estimated fair value of the options granted in the year ended December 31, 2020 was determined utilizing the Black-Scholes option-pricing model at the date of grant. The following table summarizes stock option activity for the years ended December 31, 2017, 20162020 and 2015:

     Number of shares    Weighted- average exercise price  
Weighted- average contractual term 
    Aggregate intrinsic value  
 
 
   
 
 
   
 
 
  (in years)  
 
 
   
 
Outstanding at January 1, 2015
  194 
  971.70 
  3.50 
 $-- 
Granted
  -- 
  -- 
    
    
Exercised
  -- 
  -- 
    
    
Forfeited
  (152)
  463.32 
    
    
Expired
  (42)
  2,811.53 
    
    
Outstanding at December 31, 2015
  -- 
  -- 
  -- 
 $-- 
Granted
  -- 
  -- 
    
    
Exercised
  -- 
  -- 
    
    
Forfeited
  -- 
  -- 
  -- 
    
Expired
  -- 
  -- 
    
    
Outstanding at December 31, 2016
  -- 
  -- 
  -- 
 $-- 
Granted
  -- 
  -- 
    
    
Exercised
  -- 
  -- 
    
    
Forfeited
  -- 
  -- 
    
    
Expired
  -- 
  -- 
    
    
Outstanding at December 31, 2017
  -- 
 $-- 
  -- 
 $-- 
 
    
    
    
    
Exercisable at December 31, 2017
  -- 
 $-- 
  -- 
 $-- 
2019:

    

    

    

Weighted-

    

average

Weighted-

contractual 

Number of 

 average 

term

Aggregate 

shares

exercise price

(in years)

intrinsic value

Outstanding at December 31, 2018

 

1,916,900

0

$

Granted

 

815,000

$

6.50

 

 

Exercised

 

0

 

0

 

 

Forfeited

 

(126,170)

 

0

 

 

Expired

 

0

0

 

 

Outstanding at December 31, 2019

2,605,730

$

6.73

8.92

$

11,706,110

Granted

75,000

8.21

Exercised

(35,814)

4.10

Forfeited

(118,750)

10.16

Expired

0

0

Outstanding at December 31, 2020

2,526,166

$

6.99

8.10

$

115,472,832

Vested and expected to vest at December 31, 2020

 

2,526,166

$

6.99

 

8.10

$

115,472,832

Outstanding at December 31, 2020

 

2,526,166

$

6.99

 

8.10

$

115,472,832

Expected to vest at December 31, 2020

2,526,166

$

6.99

8.10

$

115,472,832

Exercisable at December 31, 2020

 

910,625

$

6.23

 

8.13

$

41,701,656

Total expense associated with the stock options was approximately $6.0 million, $3.5 million and 0 during the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2017,2020, there are no unvested option awards and nowas approximately $1.7 million of total unrecognized compensation cost related to unvested time-based stock options, which is expected to be recognized over a weighted-average period of 1.0 year. As of December 31, 2020, the stock options outstanding include options granted to both employees and non-employees which are both time-based and milestone-based. Stock-based compensation for milestone-based options will be recorded if and when a milestone occurs. We recognized stock-based compensation expense of $3.8 million during the year ended December 31, 2020 for these stock options.

The fair value of the Company’s option awards.awards were estimated using the assumptions below:

Year ended

December 31, 2020

December 31, 2019

Volatility

186.91-191.05

%

172.99-291.61

%

Expected term (in years)

5.0-6.25

5.0-6.25

Risk-free rate

0.34-0.54

%

1.82-2.49

%

Expected dividend yield

%

%

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Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

Restricted Stock

Certain employees, directors and consultants have been awarded restricted stock. The restricted stock vesting consists of milestone and time-based vesting. The following table summarizes restricted share activity for the years ended December 31, 2017, 20162020, 2019 and 2015:

 
 
Number of Shares
 
 
Weighted Average Grant Date Fair Value
 
Outstanding at January 1, 2015
  6,400,001 
  5.86 
Granted
  1,992,535 
  12.89 
Vested
  (1,001,455)
  5.04 
Forfeited
  (31,166)
  16.76 
Outstanding at December 31, 2015
  7,359,915 
  7.83 
Granted
  1,924,639 
  4.99 
Vested
  (595,726)
  7.38 
Forfeited
  (46,773)
  10.34 
Outstanding at December 31, 2016
  8,642,055 
 $7.20 
Granted
  1,836,511 
  6.40 
Vested
  (4,103,048)
  5.24 
Forfeited
  (53,875)
  8.47 
Outstanding at December 31, 2017
  6,321,643 
 $7.17 
 
    
    

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
2018:

    

    

Weighted-average 

grant date fair 

Number of shares

value

Outstanding at January 1, 2018

 

6,321,643

 

$

7.17

Granted

 

1,562,211

 

13.07

Vested

 

(1,596,966)

 

9.38

Forfeited

 

(191,196)

 

8.13

Outstanding at December 31, 2018

 

6,095,692

 

8.07

Granted

 

1,851,520

 

12.95

Vested

 

(738,960)

 

9.08

Forfeited

 

(116,463)

 

7.96

Outstanding at December 31, 2019

 

7,091,789

7.78

Granted

 

4,909,829

 

20.34

Vested

 

(1,087,918)

 

8.40

Forfeited

 

(128,666)

 

8.70

Outstanding at December 31, 2020

 

10,785,034

$

13.38

Total compensation expense associated with restricted stock grants was $15,945,284, $7,509,999$74.2 million, $7.8 million and $15,697,092$12.9 million during the years ended December 31, 2017, 20162020, 2019 and 2015,2018, respectively. As of December 31, 2017,2020, there was approximately $14.8$47.4 million of total unrecognized compensation expense related to unvested time-based restricted stock, which is expected to be recognized over a weghted-averageweighted-average period of 1.01 year. This amount does not include, as of December 31, 2017, 242,0002020, 2,961,174 shares of restricted stock outstanding which are milestone-based and vest upon certain corporate milestones; and 2,413,9171,866,250 shares of restricted stock outstanding issued to non-employees. Milestone-based non-cashnoncash compensation expense will be measured and recorded if and when a milestone becomes probable.

Warrants

The Company’s only outstanding warrant is the warrant issued to Hercules as part of our debt agreement to purchase 147,058 shares of common stock with an exercise price of $4.08. See Note 7 for further details. There was 0 expense for non-employee shares is determined at the “measurement date.” The expense is recognized over the vesting period of the award. Until the measurement date is reached, the total amount of compensation expense remains uncertain. We record compensation expense based on the fair value of the award at the reporting date.

Warrants
The following table summarizes warrant activity forrelated to warrants during the years ended December 31, 2017, 20162020, 2019 and 2015:
 
 
    Warrants  
 
 
  Weighted- average exercise price  
 
 
  Aggregate intrinsic value  
 
Outstanding at January 1, 2015
  4,148,228 
  0.94 
 $61,792,184 
Issued
  -- 
  -- 
    
Exercised
  (2,950,115)
  0.36 
    
Expired
  (11,364)
  2.25 
    
Outstanding at December 31, 2015
  1,186,749 
  2.37 
 $11,341,452 
Issued
  -- 
  -- 
    
Exercised
  (273,370)
  2.26 
    
Expired
  -- 
  2.25 
    
Outstanding at December 31, 2016
  913,379 
 $2.41 
 $1,961,403 
Issued
  -- 
  -- 
    
Exercised
  (887,585)
  2.41 
    
Expired
  (25,794)
  -- 
    
Outstanding at December 31, 2017
  -- 
 $-- 
 $-- 
 
    
    
    

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
2018.

��

NOTE 6 – NOTES PAYABLE

OTHER LIABILITIES

The following is a summary of notes payable:payable included in other current liabilities on the Company's consolidated balance sheets:

(in thousands)

December 31, 2020

December 31, 2019

Non-

Non-

Current 

current 

Current 

current 

portion, 

portion, 

portion, 

portion, 

    

net

    

net

    

Total

    

net

    

net

    

Total

Convertible 5% Notes Payable

$

938

$

0

$

938

$

190

$

0

$

190

  Totals

$

938

$

0

$

938

$

190

$

0

$

190

F-17

 
 
December 31, 2017
 
 
December 31, 2016
 
 
 
  Current portion, net  
 
 
  Non-current portion, net  
 
 
  Total  
 
 
  Current portion, net  
 
 
  Non-current portion, net  
 
 
  Total  
 
Convertible 5% Notes Payable
 $127,614 
 $-- 
 $127,614 
 $68,875 
 $-- 
 $68,875 
  Totals
 $127,614 
 $-- 
 $127,614 
 $68,875 
 $-- 
 $68,875 

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

Convertible 5% Notes Payable

The 5% Notes and accrued and unpaid interest thereon are convertible at the option of the holder into common stock at the conversion price of $1,125 per share. We have no obligation under the 5% Notes aside from (a) 50% of the net product cash flows from Ariston’s product candidates, if any, payable to noteholders; and (b) the conversion feature, discussed above. Interest accrues monthly, is added to principal on an annual basis, every March 8, and is payable at maturity, which was March 8, 2015 (see Note 4 for further details).

The cumulative liability including accrued and unpaid interest of these notes was approximately $17.5$20.3 million at December 31, 20172020 and $16.7$19.3 million at December 31, 2016. No2019. NaN payments have been made on the 5% Notes as of through December 31,, 2017.

2020.

In December 2011, we elected the fair value option for valuing the 5% Notes. The fair value option was elected in order to reflect in our financial statements the assumptions that market participants use in evaluating these financial instruments (see Note 4 for further details).

Current Liabilities

In 2018, we entered into an agreement with a contract manufacturer for the clinical and potential commercial supply of one of our product candidates. As part of this agreement, the contract manufacturer has agreed to defer payment of certain costs and expenses under the agreement in exchange for the payment of an administrative fee. To date we have incurred expenses related to this agreement of approximately $53.7 million as of December 31, 2020, which include service fees, raw material costs and administrative fees. We have made payments of $37.4 million to the contract manufacturer as of December 31, 2020. Accordingly, as of December 31, 2020 and 2019, $15.7 million and $47.2 million is included in current liabilities in the Company’s consolidated balance sheets. Of the remaining $15.7 million, $4.2 million is due in the first quarter of 2021.  We will incur an administrative fee of six percent (6%) per year starting from the date of invoice issuance. For the years ended December 31, 2020, 2019 and 2018, we have accrued $1.2 million, $1.2 million and 0, respectively, in administrative fees in connection with these costs, which has been included in interest expense in the Company’s consolidated statements of operations.

NOTE 7 LONG-TERM DEBT

On February 28, 2019 (the “Closing Date”), we entered into a term loan facility of up to $60.0 million (“Term Loan”) with Hercules, the proceeds of which were used for research and development programs and for general corporate purposes. The Term Loan is governed by a loan and security agreement, dated February 28, 2019 (the “Loan Agreement”), which provides for up to 4 separate advances. The first advance of $30.0 million was drawn on the Closing Date. NaN additional advances of $10.0 million may be drawn at our option but subject to certain clinical trial milestones, and the fourth advance of $10.0 million, available in minimum increments of $5.0 million, is available through December 15, 2020 subject to the approval of Hercules’ investment committee.

The Term Loan will mature on March 1, 2022 (the “Loan Maturity Date”). Each advance accrues interest at a per annum rate of interest equal to the greater of either (i) the “prime rate” as reported in The Wall Street Journal plus 4.75%, or (ii) 10.25%. The Term Loan provides for interest-only payments until October 1, 2020. The interest-only period may be extended to April 1, 2021 if, on or before September 30, 2020, we achieve either the third milestone or we have raised at least $150.0 million in unrestricted net cash proceeds from one or more equity financings, subordinated indebtedness and/or upfront proceeds from business development transactions permitted under the Loan Agreement, in each case after February 7, 2019, and prior to September 30, 2020 (“Milestone IV”). Thereafter, amortization payments will be payable monthly in 18 installments (or, if the period requiring interest-only payments has been extended to April 1, 2021, in 12 installments) of principal and interest (subject to recalculation upon a change in prime rates). As a result of the Company having raised in excess of $150 million before the required timeline in the Loan Agreement, the interest-only period has been extended to April 1, 2021. At our option upon 7 business days’ prior written notice to Hercules, we may prepay all or any portion greater than or equal to $5.0 million of the outstanding advances by paying the entire principal balance (or portion thereof), all accrued and unpaid interest, subject to a prepayment charge of 3.0%, if such advance is prepaid in any of the first twelve months following the Closing Date; 1.5%, if such advance is prepaid after twelve months following the Closing Date but on or prior to twenty-four months following the Closing Date; and 0% thereafter. In addition, a final payment equal to 3.5% of the aggregate principal amount of the loan extended by Hercules is due on the maturity date. Amounts outstanding during an event of default shall be payable on demand and accrue interest at an additional rate of 4.0% per annum of the past due amount outstanding.

F-18

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

The Term Loan is secured by a lien on substantially all of our assets, other than intellectual property, and contains customary covenants and representations, including a liquidity covenant, financial reporting covenant and limitations on dividends, indebtedness, collateral, investments, distributions, transfers, mergers or acquisitions, taxes, corporate changes, deposit accounts, and subsidiaries. As of and through December 31, 2020, the Company has been in compliance with all covenants.

The events of default under the Loan Agreement include, without limitation, and subject to customary grace periods, (1) our failure to make any payments of principal or interest under the Loan Agreement, promissory notes or other loan documents, (2) our breach or default in the performance of any covenant under the Loan Agreement, (3) the occurrence of a material adverse effect, (4) a false or misleading representation or warranty in any material respect, (5) our insolvency or bankruptcy, (6) certain attachments or judgments on the Borrower’s assets, or (7) the occurrence of any material default under certain agreements or obligations involving indebtedness in excess of $750,000. If an event of default occurs, Hercules is entitled to take enforcement action, including acceleration of amounts due under the Loan Agreement.

The Loan Agreement also contains warrant coverage of 2% of the total amount funded. A warrant (the “Hercules Warrant”) was issued to Hercules to purchase 147,058 shares of common stock with an exercise price of $4.08. The Hercules Warrant is exercisable for seven years from the date of issuance. Hercules may exercise the Hercules Warrant either by (a) cash or check or (b) through a net issuance conversion. The shares will be registered and freely tradeable within six months of issuance. We accounted for the Hercules Warrant as an equity instrument since it was indexed to our common shares and met the criteria for classification in shareholders’ equity. The relative fair value of the Hercules Warrant on the date of issuance was approximately $1.0 million and was treated as debt issuance costs and as an offset to the Term Loan. This amount will be amortized to interest expense using the straight-line method, which approximates the effective interest method, over the life of the Term Loan.

The Company estimated the fair value of the Hercules Warrant using the Black-Scholes model based on the following key assumptions:

Exercise price

    

$

4.08

 

Common share price on date of issuance

$

6.80

Volatility

 

195.9

%

Risk-free interest rate

 

2.63

%

Expected dividend yield

 

--

%

Contractual term (in years)

 

7.00 years

The Company incurred financing expenses of $2.8 million (including the fair value of the Hercules Warrant) related to the Hercules Loan Agreement which are recorded as debt issuance costs and as an offset to long-term debt on the Company’s consolidated balance sheet. The debt issuance costs are being amortized over the term of the debt using the straight-line method, which approximates the effective interest method, and are included in interest expense in the Company’s consolidated statements of operations. Amortization of debt issuance costs was $0.9 million and $0.8 million for the years ended December 31, 2020 and 2019. At December 31, 2020 and 2019, the remaining unamortized balance of debt issuance costs was approximately $1.1 million and $2.0 million, respectively.

Long-term debt as of December 31, 2020 and 2019, is as follows (in thousands):

December 31,

    

December 31,

(in thousands)

2020

 

2019

Long-term debt

$

30,000

$

30,000

End of term fee

 

975

 

975

 

30,975

 

30,975

Less: unamortized debt issuance costs

 

(1,080)

 

(2,005)

 

29,895

 

28,970

Less: current portion

 

(22,179)

 

0

Long-term debt non-current

$

7,716

$

28,970

F-19

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

NOTE 8 LEASES

In October 2014, we entered into an agreement (the “Office Agreement”) with Fortress Biotech, Inc. (“FBIO”) to occupy approximately 45% of the 24,000 square feet of New York City office space leased by FBIO. The Office Agreement requires us to pay our respective share of the average annual rent and other costs of the 15-year lease. We approximate an average annual rental obligation of $1.4 million under the Office Agreement. We began to occupy this new space in April 2016, with rental payments beginning in the third quarter of 2016. At January 1, 2019, we recognized a lease liability and corresponding ROU asset of $9.5 million and $8.1 million, respectively, based on the present value of the remaining lease payments for all of our leased office spaces, the majority of which is comprised of our New York City office space. The present values of our lease liability and corresponding ROU asset are $12.1 million and $9.3 million, respectively, as of December 31, 2020. Our leases have remaining lease terms of 4 months to 11 years. NaN lease has a renewal option to extend the lease for an additional term of two years.

The initial commitment period of the 45% rate was for a period of three (3) years. We and FBIO currently determine actual office space utilization annually and if our utilization differs from the amount we have been billed, we will either receive credits or be assessed incremental utilization charges. As of December 31, 2020, the allocation rate is 65% and will be evaluated again in August 2021 for the following rent year. Also in connection with this lease, in October 2014 we pledged $0.6 million to secure a line of credit as a security deposit for the Office Agreement, which has been recorded as restricted cash in the accompanying consolidated balance sheets. Additional collateral of $0.6 million was pledged in April 2018 to increase the letter of credit for the office space.

In October 2019, we finalized a five-year lease for office space in New Jersey (the “NJ Lease”). We approximate an average annual rental obligation of $0.3 million under the NJ Lease. We took possession of this space in October 2019, with rental payments beginning in November 2019.

The following components of lease expense are included in the Company’s consolidated statements of operations for the years ended December 31, 2020, 2019 and 2018:

    

 

 

December 31, 

 

December 31, 

December 31, 

(in thousands)

 

2020

 

2019

2018

Operating lease cost

$

2,656

$

2,651

$

1,440

Net lease cost

$

2,656

$

2,651

$

1,440

As of December 31, 2020, the weighted-average remaining operating lease term was 7.7 years and the weighted-average discount rate for operating leases was 10.25%. Cash paid for amounts included in the measurement of operating lease liabilities during the year ended December 31, 2020 was $2.0 million.

The balance sheet classification of lease liabilities was as follows:

    

December 31, 

    

December 31, 

(in thousands)

 

2020

 

2019

Liabilities

 

  

 

  

Lease liability current portion

$

1,669

$

1,616

Lease liability non-current

 

10,412

 

10,218

Total lease liability

$

12,081

$

11,834

F-20

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

As of December 31, 2020, the maturities of lease liabilities were as follows:

F”

    

Operating

(in thousands)

 

leases

2021

$

2,012

2022

 

2,035

2023

 

2,040

2024

 

1,923

2025

1,653

After 2025

 

9,884

Total lease payments

 

19,547

Less: interest

 

(7,466)

Present value of lease liabilities(*)

$

12,081

(*) As our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date and considering the term of the lease to determine the present value of lease payments. We used the incremental borrowing rate of 10.25% on February 28, 2019, for operating leases that commenced prior to that date.

NOTE 9 – INCOME TAXES

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basisbases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. A valuation allowance is established when necessary to reduce deferred tax assets to the amount expected to be realized. In determining the need for a valuation allowance, management reviews both positive and negative evidence, including current and historical results of operations, future income projections and the overall prospects of our business. Based upon management's assessment of all available evidence, we believe that it is more-likely-than-not that the deferred tax assets will not be realizable, and therefore, a valuation allowance has been established. The valuation allowance for deferred tax assets was approximately $99,713,000$276.7 million and $116,172,000$186.7 million as of December 31, 2020 and 2019, respectively.  

The CARES Act was enacted on March 27, 2020 in response to the economic fallout of the COVID-19 pandemic in the United States.  There are several provisions of the CARES Act that were considered in the December 31, 2020 year-end tax provision as follows.  Under the CARES Act, a net operating loss carryforward (“NOL”) arising in tax years beginning after December 31, 2017 and 2016, respectively.

On December 22, 2017, H.R.1, commonly known asbefore January 1, 2021 may be carried back to each of the five tax years preceding the tax year of such loss.  The Company has incurred taxable losses in prior years; therefore, there is no carry-back opportunity to the Company.  Under the Tax Cuts and Jobs Act (the “Act”of 2017 (“TCJA”), deductible interest expense was signed into law. Among other things,limited to 30% of adjusted taxable income.  The CARES Act increased the limit to 50% of adjusted taxable income for 2019 and 2020 and allowed companies to elect to use 2019 adjusted taxable income for the 2020 limitation, if it resulted in more interest expense allowed.  Due to the significant amount of taxable losses, this provision did not provide any benefit to the Company as all interest expense is disallowed (except as offset by interest income), even under the 50% limitation and using 2019 adjusted taxable income.  The CARES Act reduces our corporate federalallows employers to defer the deposit and payment of the employer’s share of Social Security taxes during the payroll tax rate from 34% to 21% effective January 1, 2018. As a result, we are required to re-measure,deferral period of March 27, 2020 through income tax expense, ourDecember 31, 2020.  The CARES Act provides for half of the deferred tax assets and liabilities using the enacted rate at which we expect thempayroll taxes to be recovered or settled.paid by December 31, 2021 and the second half to be paid by December 31, 2022.  The re-measurementCompany did not participate in this deferral program.

F-21

Table of our net deferred tax asset would have resulted in additional income tax expense of $51,767,584; however, with full valuation allowance in place, the expense is reversed through a corresponding adjustmentContents

TG Therapeutics, Inc. and Subsidiaries

Notes to the valuation allowance, resulting in no impact on income tax expense.Consolidated Financial Statements

As of December 31, 2017,2020, we have U.S. net operating loss carryforwards (“NOLs”)NOLs of approximately $375,475,000 and$956.3 million, research and development credit carryforwards (“R&D credits”) of approximately $10,491,000.$27.6 million and business interest expense carryforwards of $7.5 million.  For income tax purposes, these NOLs and R&D credits will expire in various amounts through 2037. NOLs generated after 2017 and the business interest expense carryforwards do not expire. The Tax Reform Act of 1986 contains provisions which limit the ability to utilize net operating lossNOL carryforwards and R&D credit carryforwards in the case of certain events including significant changes in ownership interests.  The Exchange Transaction with TG Bio may have resulted in a “change in ownership” as defined by IRC Section 382 of the Internal Revenue Code of 1986, as amended. Additionally, stock issuance activities may have resulted in a “change in ownership” as defined by IRC Section 382 of the Internal Revenue Code of 1986, as amended.  Accordingly, a substantial portion of the Company’s NOLs above may be subject to annual limitations in reducing any future year’s taxable income, and a substantial portion of the R&D Creditcredit carryforwards may be subject to annual limitations in reducing any future year’s tax.


TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 20172020 and 20162019 are presented below.

 
 
2017
 
 
2016
 
Deferred tax assets (liabilities):
 
 
 
 
 
 
Net operating loss carryforwards
 $83,655,879 
 $95,329,928 
Research and development credit
  10,490,793
  7,326,715 
Noncash compensation
  4,933,807 
  12,915,672 
Other
  632,274 
  599,514 
Deferred tax asset, excluding valuation allowance
 99,712,753
  116,171,829 
 
    
    
Less valuation allowance
  (99,712,753)
  (116,171,829)
Net deferred tax assets
 $-- 
 $-- 

(in thousands)

    

2020

    

2019

Deferred tax assets:

 

  

 

  

Net operating loss carryforwards

$

223,685

$

158,177

Research and development credit

 

27,558

 

22,483

Noncash compensation

 

22,381

 

4,680

Disallowed interest

1,855

710

Other

 

1,224

 

661

Deferred tax asset, excluding valuation allowance

 

276,703

 

186,711

Less valuation allowance

 

(276,703)

 

(186,711)

Net deferred tax assets

$

0

$

0

There was no0 current or deferred income tax expense for the year ended December 31, 2017.2020. Income tax expense differed from amounts computed by applying the US FederalU.S. federal income tax rate of 34%21% for the years ended December 31, 2020, 2019 and 2018, to pretax loss as follows:

 
For the year ended December 31,
 
 
2017
 
 
2016
 
 
2015
 
 
 
 
 
 
 
 
 
 
 
Loss before income taxes, as reported in the consolidated statements of operations
 $(118,476,012)
 $(78,252,894)
 $(62,948,646)
 
    
    
    
Computed “expected” tax benefit
 $(40,281,844)
 $(26,605,984)
 $(21,402,540)
 
    
    
    
Increase (decrease) in income taxes resulting from:
    
    
    
  Expected benefit from state and local taxes
  (1,105,708)
  (835,072)
  (672,306)
  Research and development credits
  (3,697,258)
  (2,364,417)
  (1,603,364)
  Other
  1,563,114
  (7,506)
  566,310 
  Impact of change in state tax rates on deferred taxes
  -- 
  -- 
  5,836,819 
  Stock awards
  8,213,188
    
    
  Effects of federal tax reform rate changes
  51,767,584
    
    
  Change in the balance of the valuation allowance for deferred tax assets
  (16,459,076)
 29,812,979
 17,275,081
 
 $-- 
 $-- 
 $-- 

For the year ended December 31, 

(in thousands)

    

2020

    

2019

    

2018

Loss before income taxes, as reported in the consolidated statements of operations

$

(279,381)

$

(172,871)

$

(173,482)

 

 

 

  

Computed “expected” tax benefit

$

(58,670)

$

(36,303)

$

(36,431)

 

 

 

  

Increase (decrease) in income taxes resulting from:

 

 

 

  

Expected benefit from state and local taxes

 

(10,801)

 

(2,128)

 

(2,243)

Research and development credits

 

(5,265)

 

(7,266)

 

(4,726)

Other

 

1,065

 

641

 

639

Stock options

 

(1,558)

 

1,292

 

(473)

Enactment of federal tax reform

 

(14,763)

 

0

 

0

Change in the balance of the valuation allowance for deferred tax assets

 

89,992

 

43,764

 

43,234

$

0

$

0

$

0

We file income tax returns in the U.S FederalU.S. federal and various state and local jurisdictions. With certain exceptions, the Company is no longer subject to U.S. Federalfederal and state income tax examinations by tax authorities for years prior to 2014.2016. However, NOLs and tax credits generated from those prior years could still be adjusted upon audit.

F-22

Table of Contents

TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

The Company would recognize interest and penalties, if any, to uncertain tax positionpositions in income tax expense in the statement of operations. There was no0 accrual for interest and penalties related to uncertain tax positions for 2017.2020. We do not believe that there will be a material change in our unrecognized tax positions over the next twelve months. All of the unrecognized tax benefits, if recognized, would be offset by the valuation allowance.

NOTE 810 – LICENSE AGREEMENTS

BET
In May 2016, as part of a broader agreement with Jubilant Biosys (“Jubilant”), an India-based biotechnology company, we entered into a sub-license agreement (“JBET Agreement”) with Checkpoint Therapeutics, Inc. (“Checkpoint”) (see Note 9), for the development and commercialization of Jubilant’s novel BET inhibitor program in the field of hematological malignancies.

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
Under the terms of the agreement, we paid Checkpoint an up-front licensing fee of $1.0 million and will make additional payments contingent on certain preclinical, clinical, and regulatory milestones, including commercial milestones totaling up to approximately $177 million and a single-digit royalty on net sales. TG will also provide funding to support certain targeted research efforts at Jubilant.
Anti-PD-L1 and anti-GITR
On March 3, 2015, we entered into a Global Collaboration Agreement (the “Collaboration”) with Checkpoint, a subsidiary of Fortress Biotech, Inc. (“FBIO”), a related party, for the development and commercialization of Checkpoint’s anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies. Checkpoint retains the rights to develop and commercialize these antibodies in solid tumors.
Under the terms of the Collaboration, we made an up-front payment of $0.5 million, will make development and sales-based milestone payments up to an aggregate of $164 million, and will pay a tiered single digit royalty on net sales. The royalty term will terminate on a country by country basis upon the later of (i) ten years after the first commercial sale of any applicable licensed product in such country, or (ii) the expiration of the last-to-expire patent held by the Dana Farber Cancer Institute containing a valid claim to any licensed product in such country.
 Michael Weiss, our Executive Chairman, CEO and President is also the Executive Vice Chairman of FBIO and the Executive Chairman of Checkpoint (see Note 9).
TGR-1202
On September 22, 2014, we exercised our option to license the global rights to TGR-1202, thereby entering into an exclusive licensing agreement (the “TGR-1202 License”) with Rhizen Pharmaceuticals, SA (“Rhizen”) for the development and commercialization of TGR-1202. Prior to this, we had been jointly developing TGR-1202 in a 50:50 joint venture with Rhizen.
Under the terms of the TGR-1202 License, Rhizen received a $4.0 million cash payment and 371,530 shares of our common stock as an upfront license fee. With respect to TGR-1202, Rhizen will be eligible to receive regulatory filing, approval and sales-based milestone payments in the aggregate of approximately $175 million, a small portion of which will be payable on the first New Drug Application (NDA) filing and the remainder on approval in multiple jurisdictions for up to two oncology indications and one non-oncology indication and attaining certain sales milestones. In addition, if TGR-1202 is co-formulated with another drug to create a new product (a "New Product"), Rhizen will be eligible to receive similar regulatory approval and sales-based milestone payments for such New Product. Additionally, Rhizen will be entitled to tiered royalties on our future net sales of TGR-1202 and any New Product. In lieu of sales milestones and royalties on net sales, Rhizen shall also be eligible to participate in sublicensing revenue, if any, based on a percentage that decreases as a function of the number of patients treated in clinical trials following the exercise of the license option. Rhizen will retain global manufacturing rights to TGR-1202, provided that they are price competitive with alternative manufacturers.
IRAK4
On June 23, 2014, we entered into an exclusive licensing agreement with Ligand Pharmaceuticals Incorporated ("Ligand") for the development and commercialization of Ligand's interleukin-1 receptor associated kinase-4 ("IRAK4") inhibitor technology, which currently is in preclinical development for potential use against certain cancers and autoimmune diseases. IRAK4 is a serine/threonine protein kinase that is a key downstream signaling component of the interleukin-1 receptor and multiple toll-like receptors.

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
Under the terms of the license agreement, Ligand received 125,000 shares of our common stock as an upfront license fee. Ligand will also be eligible to receive maximum potential milestone payments of approximately $207 million upon the achievement of specific clinical, regulatory and commercial milestone events. Additionally, Ligand will be entitled to royalties on our future net sales of licensed products containing IRAK4 inhibitors. The basic royalty rate for licensed products covered by Ligand's issued patents will be 6% for annual sales of up to $1 billion and 9.5% for annual sales in excess of that threshold. 
Additionally, Opus Point Partners, LLC, who identified the opportunity and advised us on the transaction, will also be entitled to receive a 1% royalty for annual sales of up to $1 billion. Michael S. Weiss, our Executive Chairman and Chief Executive Officer, is a Managing Member of Opus Point Partners, LLC.

TG-1101

(Ublituximab)

In November 2012, we entered into an exclusive (within the territory) sublicense agreement with Ildong Pharmaceutical Co. Ltd. (“Ildong”) relating to the development and commercialization of TG-1101ublituximab in South Korea and Southeast Asia. Under the terms of the sublicense agreement, Ildong has been granted a royalty bearing, exclusive right, including the right to grant sublicenses, to develop and commercialize TG-1101ublituximab in South Korea, Taiwan, Singapore, Indonesia, Malaysia, Thailand, Philippines, Vietnam, and Myanmar.

An upfront payment of $2.0 million, which was received in December 2012, net of $0.3 million of income tax withholdings,, is being recognized as license revenue on a straight-line basis over the life of the agreement, which is through the expiration of the last licensed patent right or 15 years after the first commercial sale of a product in such country, unless the agreement is earlier terminated, and represents the estimated period over which we will have certain ongoing responsibilities under the sublicense agreement. We recorded license revenue of approximately $152,000 for each of the years ended December 31,, 2017, 2016 2020, 2019 and 2015,2018, and, at December 31,, 2017, 2016 2020 and 2015,2019, have deferred revenue of approximately $1,219,000, $1,371,000$0.8 million and $1,524,000,$0.9 million, respectively, associated with this $2,000,000$2 million payment (approximately $152,000 of which has been classified in current liabilities at December 31, 2017)2020 and 2019).

We may receive up to an additional $5.0 million in payments upon the achievement of pre-specified milestones. In addition, upon commercialization, Ildong will make royalty payments to us on net sales of TG-1101ublituximab in the sublicense territory.

TGR-1202 (Umbralisib)

On September 22, 2014, we exercised our option to license the global rights to umbralisib, thereby entering into an exclusive licensing agreement (the “TGR-1202 License”) with Rhizen Pharmaceuticals, SA (“Rhizen”) for the development and commercialization of umbralisib. Prior to this, we had been jointly developing umbralisib in a 50:50 joint venture with Rhizen.

Under the terms of the TGR-1202 License, Rhizen received a $4.0 million cash payment and 371,530 shares of our common stock as an upfront license fee. With respect to umbralisib, Rhizen is eligible to receive an aggregate of approximately $175 million in milestone payments, a small portion of which is attributable to the milestone paid upon the NDA filing for umbralisib and that will be payable based on the February 2021 FDA approval of umbralisib.  The remainder of the milestone payments are payable on approval in multiple jurisdictions for up to two oncology indications and one non-oncology indication and attaining certain sales milestones. In addition, if umbralisib is co-formulated with another drug to create a new product (a "New Product"), Rhizen will be eligible to receive similar regulatory approval and sales-based milestone payments for such New Product. Additionally, Rhizen will be entitled to tiered royalties on our future net sales of umbralisib and any New Product. In lieu of sales milestones and royalties on net sales, Rhizen shall also be eligible to participate in sublicensing revenue, if any, based on a percentage that decreases as a function of the number of patients treated in clinical trials following the exercise of the license option. Rhizen will retain global manufacturing rights to umbralisib, provided that they are price competitive with alternative manufacturers.

TG-1501: PDL1 (Cosibelimab)

In March 2015, we entered into a Global Collaboration Agreement (“Collaboration Agreement”) with Checkpoint for the development and commercialization of anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies. The Collaboration Agreement was amended in June 2019 and upon execution of the amendment we incurred an upfront fee of $1.0 million. We incurred expenses of approximately $1.1 million, $4.1 million and $0.6 million for the years ended December 31, 2020, 2019 and 2018, respectively, the majority of which relates to manufacturing expenses and milestone payments of PD-L1. The relevant expenses are recorded in other research and development in the accompanying consolidated statements of operations.

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TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

TG-1601: BET

In May 2016, as part of a broader agreement with Jubilant Biosys (“Jubilant”), we entered into a sub-license agreement (“JBET Agreement”) with Checkpoint Therapeutics, Inc. (“Checkpoint”) (see Note 11), for the development and commercialization of Jubilant’s novel BET inhibitor program in the field of hematological malignancies.

Under the terms of the agreement, we paid Checkpoint an up-front licensing fee of $1.0 million and will make additional payments contingent on certain preclinical, clinical, and regulatory milestones, including commercial milestones totaling up to approximately $177 million and a single-digit royalty on net sales. TG will also provide funding to support certain targeted research efforts at Jubilant.

TG-1701: BTK

In January 2018, we entered into a global exclusive license agreement with Jiangsu Hengrui Medicine Co. (“Hengrui”), to acquire worldwide intellectual property rights, excluding Asia but including Japan, and for the research, development, manufacturing, and commercialization of products containing or comprising of any of Hengrui’s Bruton’s Tyrosine Kinase inhibitors containing the compounds of either TG-1701 (SHR1459 or EBI1459) or TG1702 (SHR1266 or EBI1266). Pursuant to the agreement, in April 2018, we paid Hengrui an upfront fee of $1.0 million in our common stock recorded to noncash stock expense associated with in-licensing agreements in our consolidated statement of operations. In addition, in July 2019, we paid Hengrui the first milestone of $0.1 million in our common stock recorded to noncash stock expense associated with in-licensing agreements in our consolidated statement of operations. Hengrui is eligible to receive milestone payments totaling approximately $350 million upon and subject to the achievement of certain milestones. Various provisions allow for payments in conjunction with the agreement to be made in cash or our common stock, while others limit the form of payment. Royalty payments in the low double digits are due on net sales of licensed products and revenue from sublicenses.

TG-1801: anti-CD47/anti-CD19

In June 2018, we entered into a Joint Venture and License Option Agreement with Novimmune SA (“Novimmune”) to collaborate on the development and commercialization of Novimmune’s novel first-in-class anti-CD47/anti-CD19 bispecific antibody known as TG-1801 (previously NI-1701). The companies will jointly develop the product on a worldwide basis, focusing on indications in the area of hematologic B-cell malignancies. We serve as the primary responsible party for the development, manufacturing and commercialization of the product. Pursuant to the agreement, in June 2018 we paid Novimmune an upfront payment of $3.0 million in our common stock recorded to noncash stock expense associated with in-licensing agreements in our consolidated statement of operations. Further milestone payments will be paid based on early clinical development, and the Company will be responsible for the costs of clinical development of the product through the end of the Phase 2 clinical trials, after which the Company and Novimmune will be jointly responsible for all development and commercialization costs. The Company and Novimmune will each maintain an exclusive option, exercisable at specific times during development, for the Company to license the rights to TG-1801, in which case Novimmune is eligible to receive additional milestone payments totaling approximately $185 million as well as tiered royalties on net sales in the high single to low double digits upon and subject to the achievement of certain milestones.

NOTE 911 – RELATED PARTY TRANSACTIONS

LFB Biotechnologies

On January 30, 2012, we entered into an exclusive license agreement with LFB Biotechnologies, GTC Biotherapeutics and LFB/GTC LLC, all wholly-owned subsidiaries of LFB Group, relating to the development of ublituximab (the “LFB License Agreement”). In connection with the LFB License Agreement, LFB Group was issued 5,000,000 shares of common stock, and a warrant to purchase 2,500,000 shares of common stock at a purchase price of $0.001 per share. In addition, on November 9, 2012, we nominated Dr. Yann Echelard to our Board of Directors as LFB Group’s nominee. LFB Group maintains the right to nominate a board member until such time as LFB Group owns less than 10% of the outstanding common stock.

In connection with the LFB License Agreement, LFB Group maintained the right to purchase at least $750,000 in additional shares of common stock at a purchase price per share as defined in a November 2012 securities exchange agreement. Accordingly, in February 2015, LFB Group purchased 114,855 shares of our common stock at a price of $6.53 per share for net proceeds of $750,000. In May 2015, LFB Group exercised its warrant to purchase 2,500,000 shares of common stock at a purchase price of $0.001 per share.

TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

Under the terms of the LFB License Agreement, we utilize LFB Group for certain development and manufacturing services. We incurredAs of December 31, 2020 we accrued approximately $2.3 million, $8.1 million and $9.3$6.0 million in expense related to the achievement of certain milestones of the LFB License Agreement. These expenses for such services during the years ended December 31, 2017, 2016 and 2015, respectively, which have beenare included in other research and development expenses in the accompanying consolidated statements of operations. As of December 31,, 2017, and 2016, 2020, we had zero and approximately $0.4 million, respectively,0 recorded in accounts payable related to the LFB License Agreement. In conjunction with the development

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Table of Contents

TG Therapeutics, Inc. and manufacturing services discussed above, certain agreements between us and LFB Group require payments in advance of services performed or goods delivered. Accordingly, as of December 31, 2017 and 2016, we recorded zero and approximately $1.3 million, respectively, in prepaid research and development for such advance payments.Subsidiaries

Notes to Consolidated Financial Statements

Other Parties

In March 2014, we entered into a shared services agreement (the “Opus Shared Services Agreement”) with Opus Point Partners Management, LLC (“Opus”) in which the parties agreed to share a rented facility and costs for certain other services.  Michael S. Weiss, our Executive Chairman and CEO, is a Managing Member of Opus. During the years ended December 31, 2017 and 2016, we incurred expenses of zero and approximately $0.3 million, respectively, principally for rent, related to this Opus Shared Services Agreement. As of December 31, 2017 and 2016, we had zero accounts payable related to this Opus Shared Services Agreement. The Opus Shared Services Agreement is no longer in effect as we began occupying new space in April 2016.

In October 2014, we entered into an agreement (the “Office Agreement”)the Office Agreement with FBIO, to occupy approximately 45% of the 24,000 square feet of New York City office space leased by FBIO, which is now our corporate headquarters.FBIO. The Office Agreement requires us to pay our respective share of the average annual rent and other costs of the 15-year lease. We approximate an average annual rental obligation of $1.1 million under the Office Agreement. We began to occupy this new space in April 2016, with rental payments beginning in the third quarter of 2016. DuringAt January 1, 2019, we recognized a lease liability of $9.3 million, with a corresponding ROU asset of $7.7 million based on the years ended December 31, 2017 and 2016, we recorded rent expensepresent value of approximately $1.2 million and $1.4 million, and at December 31, 2017, have deferred rentthe remaining lease payments for all of approximately $1.4 million.our leased office spaces, the majority of which is comprised of our New York City office space. Mr. Weiss, our Executive Chairman and CEO, is also Executive Vice Chairman of FBIO.

During

Under the year ended December 31, 2017, Office Agreement, we agreed to pay FBIO $2.8 million for our portion of the build-out costs, which have been allocated to us at the 45% rate mentioned above. The allocated build-out costs have been recorded in Leasehold Interest, net on the Company’sCompany's consolidated balance sheetsheets and will be amortized over the 15-year term of the Office Agreement. After anThe initial commitment period of the 45% rate was for a period of three (3) years, we(3) years. We and FBIO willcurrently determine actual office space utilization annually and if our utilization differs from the amount we have been billed, we will either receive credits or be assessed incremental utilization charges. As of December 31, 2020, the allocation rate is 65% and will be evaluated again in August 2021 for the following rent year. Also, in connection with this lease, in October 2014 we pledged $0.6 million to secure a line of credit as a security deposit for the Office Agreement, which has been recorded as restricted cash in the accompanying consolidated balance sheets.

sheets. Additional collateral of $0.6 million was pledged in April 2018 to increase the letter of credit for the office space.

In July 2015, we entered into a Shared Services Agreement (the “Shared Services Agreement”) with FBIO to share the cost of certain services such as facilities use, personnel costs and other overhead and administrative costs. This Shared Services Agreement requires us to pay our respective share of services utilized. In connection with the Shared Services Agreement, we incurred expenses of approximately $1.2$0.8 million, $0.9 million and $0.8$1.6 million for shared services for the years ended December 31, 20172020, 2019 and 2016,2018, respectively, primarily related to shared personnel.

In May 2016, as part of a broader agreement with Jubilant, an India-based biotechnology company, we entered into the JBET Agreementa sublicense agreement with Checkpoint, a subsidiary of FBIO, for the development and commercialization of Jubilant’s novel BET inhibitor program in the field of hematological malignancies. We paid Checkpoint an up-front licensing fee of $1.0 million in July 2016 and incurred expenses of $0.2 million in March 2017 for the first milestone achievement as part of the JBET Agreement which is recorded in other research and development in the accompanying consolidated statement of operations. As

In March 2015, we entered into the Collaboration Agreement with Checkpoint for the development and commercialization of anti-PD-L1 and anti-GITR antibody research programs in the field of hematological malignancies. The Collaboration Agreement was amended in June 2019 and upon execution of the amendment we incurred an upfront fee of $1.0 million. We incurred expenses of approximately $1.1 million, $4.1 million and $0.6 million for the years ended December 31, 20172020, 2019 and 2016, we had approximately $0.3 million2018, respectively, the majority of which relates to manufacturing expenses and $0.8 million, respectively,milestone expenses PD-L1. The relevant expenses are recorded in accounts payable, related mostly toother research and development in the JBET Agreement. Mr. Weiss is also the Executive Chairmanaccompanying consolidated statements of Checkpoint.operations.

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TG Therapeutics, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

NOTE 1012 – COMMITMENTS AND CONTINGENCIES

As of December 31, 2017,2020, we have known contractual obligations,obligations; commitments and contingencies of approximately $15.6$65.2 million related to our short- and long-term liabilities and operating lease obligations.

 
              Payment due by period
 
 
  Total  
 
 
  Less than 1 year  
 
 
  1-3 years  
 
 
  3-5 years  
 
 
  More than 5 years  
 
Contractual obligations
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
Operating leases
 $15,592,733 
 $1,081,927 
 $2,084,258 
 $2,154,566 
 $10,271,981 
    Total
 $15,592,733 
 $1,081,927 
 $2,084,258 
 $2,154,566 
 $10,271,981 
Leases

Less than 

More than 

Payment due by period (in thousands)

    

Total

    

1 year

    

1-3 years

    

3-5 years

    

5 years

Contractual obligations

 

  

 

  

 

  

 

  

 

  

Operating leases

$

19,548

$

2,012

$

4,075

$

3,577

$

9,884

Long-term debt

30,000

22,179

7,821

0

0

Contract manufacturer

 

15,669

 

15,669

 

0

 

0

 

0

    Total

$

65,217

$

39,860

$

11,896

$

3,577

$

9,884

Contract Manufacturer

See Note 96 for a detailed description of our current liabilities. Future minimum contractual commitments as of December 31, 2020 total approximately $15.7 million and are due in 2021.

Leases

See Note 8 for a detailed description of our lease arrangementarrangements in New York.York and New Jersey. Total rental expense was approximately $1.4$2.7 million, $1.6$2.7 million and $0.3$1.4 million for the years ended December 31, 2017, 20162020, 2019, and 2015,2018, respectively.

Future minimum lease commitments as of December 31, 2017,2020, in the aggregate total approximately $15.6$19.5 million through December 31, 2031. The preceding table shows future minimum lease commitments, which include our office leases in New York, New Jersey, North Carolina and Tennessee by year as of December 31, 2017.2020.

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TG Therapeutics, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
NOTE 11 – QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
 
 
3 Months Ended
 
 
 
  March 31, 2017  
 
 
  June 30, 2017  
 
 
  September 30, 2017  
 
 
  December 31, 2017  
 
 
 
   
 
 
   
 
 
   
 
 
   
 
License revenue
 $38,095 
 $38,095 
 $38,096 
 $38,095 
 
    
    
    
    
Total costs and expenses
  27,704,517 
  28,463,466 
  31,623,323 
  31,072,826 
 
    
    
    
    
Net loss
 $(27,727,509)
 $(28,353,084)
 $(31,535,652)
 $(30,859,767)
 
    
    
    
    
Basic and diluted net loss per common share
 $(0.52)
 $(0.45)
 $(0.48)
 $(0.46)
 
 
3 Months Ended
 
 
 
  March 31, 2016  
 
 
  June 30, 2016 ��
 
 
  September 30, 2016  
 
 
  December 31, 2016  
 
 
 
   
 
 
   
 
 
   
 
 
   
 
License revenue
 $38,095 
 $38,095 
 $38,096 
 $38,095 
 
    
    
    
    
Total costs and expenses
  14,030,251 
  16,061,538 
  24,963,567 
  24,066,153 
 
    
    
    
    
Net loss
 $(13,848,662)
 $(15,899,062)
 $(24,831,027)
 $(23,674,143)
 
    
    
    
    
Basic and diluted net loss per common share
 $(0.28)
 $(0.33)
 $(0.50)
 $(0.48)
NOTE 12 – LITIGATION
On January 6, 2017, a purported securities class action complaint was filed in New York federal court against the Company and certain of its directors, officers or consultants on behalf of all shareholders who purchased or otherwise acquired TG Therapeutics common stock between September 15, 2014 and October 12, 2016 (the “Class Period”). The case was captioned John Lyon v. TG Therapeutics, Michael S. Weiss, Sean A. Power and Robert Niecestro, Case No. 1:17-cv-00112-VM (S.D.N.Y.). The complaint alleged that, throughout the Class Period various statements made by the Company regarding its GENUINE Phase 3 trial were materially false or misleading when made in violation of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder. On January 24, 2017, a second purported class action complaint was filed in New York federal court against the Company and certain of its directors, officers or consultants on behalf of all shareholders who purchased or otherwise acquired TG Therapeutics common stock between September 15, 2014 and October 12, 2016. The case was captioned Kenneth C. Wyzgoski v. TG Therapeutics, Michael S. Weiss, Sean A. Power and Robert Niecestro, Case No. 1:17-cv-00508-VM (S.D.N.Y.). The claims and allegations in the Wyzgoski complaint were substantially identical to those in the Lyon case. By order dated March 23, 2017, the court consolidated the Lyon and Wyzgoski cases into one action, captioned In re TG Therapeutics Securities Litigation, Case No. 1:17-cv-00112-VM (S.D.N.Y.), appointed lead plaintiffs in the case, and approved lead plaintiffs’ selection of lead counsel. On April 5, 2017 the Court so ordered a stipulation pursuant to which lead plaintiffs voluntarily dismissed the consolidated action in its entirety without prejudice. The Company denies the allegations and claims made in the above-referenced actions and no consideration was given by the Company in connection with lead plaintiffs’ voluntary dismissal of the consolidated action.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

TG THERAPEUTICS, INC.

Date: March 15, 20181, 2021

By:  

/s/ Michael S. Weiss

Michael S. Weiss 

Executive Chairman,

Chief Executive Officer and President 

98

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints each of Michael S. Weiss and Sean A. Power, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and his name, place and stead, in any and all capacities, to sign any or all amendments to this annual report on Form 10-K, and to file the same, with all exhibits thereto and other documents in connection therewith, with the SEC, granting unto said attorney-in-fact and agent, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent or any of his substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Form 10-K has been signed by the following persons on behalf of the Registrant on March 15, 2018,1, 2021, and in the capacities indicated:

Signatures

Title

Signatures

Title

/s/ Michael S. Weiss


Michael S. Weiss

Executive Chairman, Chief Executive Officer and President

(principal (principal executive officer)

/s/ Sean A. Power


Sean A. Power

Chief Financial Officer

(principal (principal financial and accounting officer)

/s/ Laurence N. Charney


Laurence N. Charney

Director

/s/ Yann Echelard


Yann Echelard

Director

/s/ Kenneth Hoberman


Kenneth Hoberman

Director

/s/ Daniel Hume


Daniel Hume

Director

/s/ William J. Kennedy


William J. Kennedy

Director

/s/ Mark Schoenebaum, M.D.

Mark Schoenebaum, M.D.
Sagar Lonial

Sagar Lonial

Director

98

EXHIBIT INDEX
Exhibit
NumberExhibit Description
Subsidiaries of TG Therapeutics, Inc.
Consent of Independent Registered Public Accounting Firm
Certification of Principal Executive Officer
Certification of Principal Financial Officer
Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002