Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

Quarterly Report Pursuant to Sectionx QUARTERLY REPORT PURSUANT TO SECTION 13 orOR 15(d)

of the Securities Exchange Act of OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2017

March 31, 2023

or
o 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 000-23186

BIOCRYST PHARMACEUTICALS, INC.

(Exact name of registrant as specified in its charter)

DELAWARE62-1413174
Delaware62-1413174
(State ofor other jurisdiction of(I.R.S. Employer
incorporation or organization)Identification No.)
4505 Emperor Blvd., Suite 200
Durham, North Carolina27703
(Address of principal executive offices)(Zip Code)

(919) 859-1302

+1-919-859-1302
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common StockBCRXNasdaq Global Select Market

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 x No ¨

o

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 x No ¨

o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non- acceleratednon-accelerated filer, a 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 filerx
Accelerated filero
Non-accelerated filer¨  (Do not check if a smaller reporting company)oSmaller reporting company¨o

Emerging growth company¨o

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. ¨

o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨o No x

The number of shares of Common Stock, par value $0.01, of the Registrant outstanding as of October 31, 2017April 28, 2023 was 98,404,761.  

188,934,787.


Table of Contents
BIOCRYST PHARMACEUTICALS, INC.

INDEX

Page No.
Page No.
EX-32.2



When used in this report, unless otherwise indicated, we,our,us, the Company, and BioCryst refer to BioCryst Pharmaceuticals, Inc. and, where appropriate, its subsidiaries.
Cautionary Note Regarding Forward-Looking Statements
This Quarterly Report on Form 10-Q (this “report”) includes forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which are subject to the “safe harbor” created in Section 21E. In particular, statements about our expectations, beliefs, plans, objectives or assumptions of future events or performance are contained or incorporated by reference in this report. All statements other than statements of historical facts contained herein are forward-looking statements. These forward-looking statements can generally be identified by the use of words such as “may,” “will,” “intends,” “plans,” “believes,” “anticipates,” “expects,” “estimates,” “predicts,” “potential,” the negative of these words or similar expressions. Statements that describe our future plans, strategies, intentions, expectations, objectives, goals or prospects are also forward-looking statements. Discussions containing these forward-looking statements are principally contained in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of this report, as well as any amendments we make to those sections in filings with the Securities and Exchange Commission (“SEC”). These forward-looking statements include, but are not limited to, statements about:
the preclinical development, clinical development, commercialization, or post-marketing studies of our products and product candidates, including ORLADEYO® (berotralstat), BCX10013, peramivir, and early-stage discovery programs, and our plans regarding the same;
the timing and success of our commercialization of ORLADEYO in the United States and elsewhere and expectations regarding the commercial market for ORLADEYO;
the potential for government stockpiling orders of our products and product candidates, including the timing or likelihood of entering into any U.S. Government stockpile order and our ability to execute any such order;
the closing out or expiration of our contracts with the Biomedical Advanced Research and Development Authority within the U.S. Department of Health and Human Services (“BARDA/HHS”) and the National Institute of Allergy and Infectious Diseases within HHS (“NIAID/HHS”) for the development of galidesivir;
additional regulatory approvals, or milestones, royalties or profit from sales of our products by us or our partners;
the implementation of our business model, strategic plans for our business, products, product candidates and technology;
our ability to establish and maintain collaborations or out-license rights to our products and product candidates;
plans, programs, progress and potential success of our collaborations, including with Torii Pharmaceutical Co., Ltd. (“Torii”) for ORLADEYO in Japan and Shionogi & Co., Ltd. (“Shionogi”) and Green Cross Corporation (“Green Cross”) for peramivir in their territories;
our and our subsidiary guarantors’ ability to satisfy obligations under the Pharmakon Loan Agreement (as defined below) and to comply with the covenants as set forth in the agreements governing our debt obligations;
the scope of protection we are able to establish and maintain for intellectual property rights covering our products, product candidates, and technology;
our ability to operate our business without infringing the intellectual property rights of others;
estimates of our revenues, expenses, capital requirements, annual cash utilization, and our needs for additional financing;
the timing or likelihood of regulatory filings or regulatory agreements, deferrals, approvals, and other decisions;
our ability to manage our liquidity needs, including our ability to raise additional capital, to fund our operations or repay our recourse debt obligations;
our financial performance; and
i

competitive companies, technologies, and our industry.
We have based any forward-looking statements on our current expectations about future events or performance. While we believe these expectations are reasonable, forward-looking statements are inherently subject to known and unknown risks and uncertainties, many of which are beyond our control. Actual results may differ materially from those suggested or implied by these forward-looking statements for various reasons, including those discussed in this report under the heading “Risk Factors” in Part II, Item 1A, some of which are summarized in the “Risk Factor Summary” below. Any forward-looking statement is subject to these and other risks, uncertainties, and assumptions relating to our operations, results of operations, industry, and future growth. Given these risks and uncertainties, you are cautioned not to place undue reliance on our forward-looking statements. The forward-looking statements included in this report are made only as of the date hereof. We do not undertake, and specifically decline, any obligation to update any of these statements or to publicly announce the results of any revisions to any forward-looking statements to reflect future events or developments, except as may be required by U.S. federal securities laws.
Risk Factor Summary
An investment in the Company involves risks. You should carefully read this entire report and consider the uncertainties and risks discussed in the “Risk Factors” section in Part II, Item 1A of this report, which may adversely affect our business, financial condition, or results of operations, along with the other information included in our other filings with the SEC, before making an investment decision in the Company. A summary of the principal factors that make an investment in the Company speculative or risky is set forth below.
The ongoing novel coronavirus (“COVID-19”) pandemic could create challenges in all aspects of our business, including, without limitation, delays, stoppages, difficulties, and increased expenses with respect to our and our partners’ development, regulatory processes, and supply chains, negatively impact our ability to access the capital or credit markets to finance our operations, or have the effect of heightening many of the risks described below or in the “Risk Factors” section in Part II, Item 1A of this report.
We have incurred losses since our inception, expect to continue to incur losses, and may never be profitable.
We may need to raise additional capital in the future. If we are unable to raise capital as and when needed, we may need to adjust our operations.
Our success depends upon our ability to manage our product candidate pipeline, advance our product candidates through the various stages of development, especially through the clinical trial process, and to receive and maintain regulatory approvals for the commercial sale of our product candidates. The development process and related regulatory processes are complex and uncertain, may be lengthy and expensive, and require, among other things, an indication that our products and product candidates are safe and effective. For example, applicable regulatory agencies could refuse to approve, or impose restrictions or warnings on, our product candidates, require us to conduct additional studies or adopt study designs that differ from our planned development strategies, suspend or terminate our clinical trials, withdraw approval for our products, or take other actions that could materially impact the cost, timing, and success of our planned development and commercialization strategies.
We rely heavily upon third parties, including development partners, contractors, contract research organizations, and third-party suppliers, manufacturers, and distributors, for many important stages of our product candidate development and in the commercialization of certain of our products and product candidates. Our failure to establish and maintain these relationships, the failure of any such third party to perform its obligations under agreements with us, or the failure of such a relationship to meet our expectations could have a material adverse impact on our business, financial condition, and results of operations.
If we fail to obtain additional financing or acceptable partnership arrangements as and when needed, we may be unable to complete the development and commercialization of our products and product candidates or continue operations.
The commercial viability of any approved product could be compromised if the product is less effective than expected, causes undesirable side effects that either were not previously identified or were worse than expected, or fails to achieve market acceptance by physicians, patients, third-party payors, health authorities, and others.
ii

There can be no assurance that our or our partners’ commercialization efforts, methods, and strategies for our products or technologies will succeed, and our future revenue generation is uncertain.
We have expanded, and may continue expanding, our development and regulatory capabilities and are implementing sales, marketing, and distribution capabilities, and as a result, we may encounter difficulties managing our growth, which could disrupt our operations.
We face intense competition, and if we are unable to compete effectively, the demand for our products may be reduced. In addition, developments by others may render our products, product candidates, or technologies obsolete or noncompetitive.
We are subject to various laws and regulations related to our products and product candidates, and if we or our employees, consultants, or partners do not comply with these laws and regulations, we could face substantial penalties and our reputation could be harmed. In addition, we and our partners may be subject to new legislation, regulatory proposals, and healthcare payor initiatives that may increase our costs of compliance and adversely affect our or our partners’ ability to market our products, develop our product candidates, obtain collaborators, and raise capital.
If we fail to adequately protect or enforce our intellectual property rights, the value of those rights would diminish. Legal proceedings to protect or enforce our patents, the patents of our partners, or our other intellectual property rights could be expensive, time consuming, and unsuccessful. If we fail to secure the rights to patents of others, this could adversely affect our business.
We face an inherent risk of liability in the event that the use or misuse of our products or product candidates results in personal injury or death, and our product liability insurance coverage may be insufficient.
If we fail to reach milestones or to make annual minimum payments or otherwise breach our obligations under our license agreements, our licensors may terminate our agreements with them and/or seek additional remedies.
The Pharmakon Loan Agreement contains conditions and restrictions that limit our flexibility in operating our business. We may be required to make a prepayment or repay our outstanding indebtedness under the Pharmakon Loan Agreement earlier than we expect if a prepayment event or an event of default occurs, including a material adverse change with respect to us, which could have a material adverse effect on our business.
International expansion of our business exposes us to business, legal, regulatory, political, operational, financial, and economic risks. For example, our actual or perceived failure to comply with European governmental laws and regulations and other obligations related to privacy, data protection, and information security could harm our business. In addition, the United Kingdom’s withdrawal from the European Union could result in increased regulatory and legal complexity, which may make it more difficult for us to do business in Europe and impose additional challenges in securing regulatory approval of our product candidates in Europe.
If our facilities incur damage or power is lost for a significant length of time, our business will suffer.
A significant disruption in our or our third-party vendors’ information technology systems or a cybersecurity breach could adversely affect our business.
Our existing principal stockholders hold a substantial amount of our common stock and may be able to influence significant corporate decisions, which may conflict with the interests of other stockholders.
Our stock price has been, and is likely to continue to be, highly volatile, which could cause the value of an investment in our common stock to decline significantly.
Natural disasters, epidemic or pandemic disease outbreaks, trade wars, armed conflicts, political unrest, or other events could disrupt our business or operations or those of our development partners, manufacturers, regulators, or third parties with whom we conduct business now or in the future.
Our business, operations, clinical development or commercialization plans and timelines, and access to capital could be adversely affected by unpredictable and unstable market and economic conditions.
iii

We are subject to legal proceedings, which could harm our reputation or result in other losses or unexpected expenditure of time and resources.
If we fail to retain our existing key personnel or fail to attract and retain additional key personnel, the development of our product candidates, the commercialization of our products, and the related expansion of our business will be delayed or stopped.
iv

PART I. FINANCIAL INFORMATION

Item 1.    Financial Statements

BIOCRYST PHARMACEUTICALS, INC.

CONSOLIDATED BALANCE SHEETS

September 30, 2017 and December 31, 2016

(In thousands, except per share data)

thousands)
March 31, 2023December 31, 2022
 2017
(Unaudited)
 2016
(Note 1)
(Unaudited)(Note 1)
Assets        Assets
Cash and cash equivalents $117,776  $22,104 Cash and cash equivalents$155,136 $304,767 
Restricted cash  3,122   1,546 Restricted cash1,463 1,472 
Investments  43,848   32,546 Investments243,022 119,543 
Receivables from collaborations  8,985   8,768 
Inventory     500 
Trade receivablesTrade receivables48,639 50,599 
Inventory, netInventory, net27,466 27,533 
Prepaid expenses and other current assets  1,421   1,438 Prepaid expenses and other current assets15,157 12,586 
Deferred collaboration expense  218   85 
        
Total current assets  175,370   66,987 Total current assets490,883 516,500 
Investments  4,539   8,926 
Property and equipment, net  9,613   9,922 Property and equipment, net8,376 8,617 
Deferred collaboration expense  15   199 
Long-term investmentsLong-term investments3,432 18,077 
Other assets  1,955   3,813 Other assets7,046 6,806 
        
Total assets $191,492  $89,847 Total assets$509,737 $550,000 
        
Liabilities and Stockholders’ Equity        
Liabilities and Stockholders’ DeficitLiabilities and Stockholders’ Deficit
Accounts payable $4,603  $4,269 Accounts payable$6,254 $14,356 
Accrued expenses  11,871   10,836 Accrued expenses75,212 87,565 
Interest payable  10,705   8,990 
Deferred collaboration revenue  8,686   2,022 
Deferred revenueDeferred revenue1,200 1,224 
Lease financing obligation  73    Lease financing obligation2,491 2,369 
Senior credit facility  4,727    
Non-recourse notes payable  28,572   28,243 
        
Total current liabilities  69,237   54,360 Total current liabilities85,157 105,514 
Deferred collaboration revenue  296   8,184 
Deferred rent  178   244 
Lease financing obligation  2,770   2,704 Lease financing obligation5,934 5,804 
Senior credit facility  18,379   22,777 
Royalty financing obligationsRoyalty financing obligations514,411 501,655 
Secured term loanSecured term loan232,522 231,624 
Stockholders’ equity:        Stockholders’ equity:  
Preferred stock, $0.001 par value; shares authorized — 5,000; no shares issued and outstanding      
Common stock, $0.01 par value: shares authorized — 200,000; shares issued and outstanding — 98,389 in 2017 and 73,782 in 2016  984   738 
Preferred stock, $0.01 par value; shares authorized - 5,000; no shares issued and outstandingPreferred stock, $0.01 par value; shares authorized - 5,000; no shares issued and outstanding— — 
Common stock, $0.01 par value; shares authorized - 450,000; shares issued and outstanding – 188,883 as of March 31, 2023 and 187,906 as of December 31, 2022Common stock, $0.01 par value; shares authorized - 450,000; shares issued and outstanding – 188,883 as of March 31, 2023 and 187,906 as of December 31, 20221,889 1,879 
Additional paid-in capital  711,965   566,913 Additional paid-in capital1,177,192 1,158,118 
Accumulated other comprehensive loss  (17)  (12)
Accumulated other comprehensive incomeAccumulated other comprehensive income585 26 
Accumulated deficit  (612,300)  (566,061)Accumulated deficit(1,507,953)(1,454,620)
        
Total stockholders’ equity  100,632   1,578 
        
Total liabilities and stockholders’ equity $191,492  $89,847 
Total stockholders’ deficitTotal stockholders’ deficit(328,287)(294,597)
Total liabilities and stockholders’ deficitTotal liabilities and stockholders’ deficit$509,737 $550,000 

See accompanying notes to consolidated financial statements.

3
1


BIOCRYST PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

Three and Nine Months Ended September 30, 2017 and 2016

(In thousands, except per share data-Unaudited)

 Three Months Nine MonthsThree Months Ended March 31,
 2017 2016 2017 201620232022
Revenues                Revenues$68,778 $49,923 
Product sales $1,501  $  $1,501  $ 
Royalty revenue  442   3,501   7,252   6,020 
Collaborative and other research and development  6,817   4,262   12,543   11,350 
Total revenues  8,760   7,763   21,296   17,370 
Expenses                
Cost of products sold  1,142      1,142    
Expenses:Expenses:  
Cost of product salesCost of product sales931 236 
Research and development  17,509   14,105   50,038   48,850 Research and development48,388 65,360 
General and administrative  3,343   2,756   9,235   8,692 
Selling, general and administrativeSelling, general and administrative47,867 34,282 
Royalty  115   143   431   247 Royalty
Total operating expenses  22,109   17,004   60,846   57,789 Total operating expenses97,193 99,880 
Loss from operations  (13,349)  (9,241)  (39,550)  (40,419)Loss from operations(28,415)(49,957)
Interest and other income  225   109   537   695 Interest and other income3,378 54 
Interest expense  (2,140)  (1,465)  (6,334)  (4,356)Interest expense(27,396)(23,837)
Gain (loss) on foreign currency derivative  130   (931)  (892)  (6,561)
Foreign currency losses, netForeign currency losses, net(229)(177)
Loss before income taxesLoss before income taxes(52,662)(73,917)
Income tax expenseIncome tax expense671 279 
Net loss $(15,134) $(11,528) $(46,239) $(50,641)Net loss$(53,333)$(74,196)
Foreign currency translation adjustmentForeign currency translation adjustment59 78 
Unrealized gain (loss) on available for sale investmentsUnrealized gain (loss) on available for sale investments500 (69)
Comprehensive lossComprehensive loss$(52,774)$(74,187)
  
Basic and diluted net loss per common share $(0.18) $(0.16) $(0.58) $(0.69)Basic and diluted net loss per common share$(0.28)$(0.40)
Weighted average shares outstanding  83,570   73,734   79,749   73,677 Weighted average shares outstanding188,509 184,898 
Unrealized loss on available for sale investments  (2)  (24)  (5)  228 
Comprehensive loss $(15,136) $(11,552) $(46,244) $(50,413)

See accompanying notes to consolidated financial statements.

4
2


BIOCRYST PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

Nine Months Ended September 30, 2017 and 2016

(In thousands-Unaudited)

thousands, Unaudited)
  2017 2016
Operating activities        
Net loss $(46,239) $(50,641)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation and amortization  522   311 
Loss on disposal of property and equipment     21 
Stock-based compensation expense  10,307   6,478 
Amortization of debt issuance costs  658   335 
Amortization of premium/discount on investments  125   499 
Change in fair value of foreign currency derivative  1,858   7,372 
Changes in operating assets and liabilities:        
Receivables  (217)  275 
Inventory  500   (620)
Prepaid expenses and other assets  17   667 
Deferred collaboration expense  51   43 
Accounts payable and accrued expenses  1,303   (12,066)
Interest payable  1,715   817 
Deferred revenue  (1,224)  (1,075)
Net cash used in operating activities  (30,624)  (47,584)
         
Investing activities        
Acquisitions of property and equipment  (213)  (5,278)
Change in restricted cash  (1,576)  106 
Purchases of investments  (39,572)   
Sales and maturities of investments  32,527   38,272 
Net cash (used in) provided by investing activities  (8,834)  33,100 
         
Financing activities        
Sale of common stock, net  133,500    
Net proceeds from common stock issued under stock-based compensation plans  1,491   204 
Proceeds from senior credit facility     22,658 
Payment of foreign currency derivative collateral     (2,190)
Increase in lease financing obligation  139   300 
Net cash provided by financing activities  135,130   20,972 
         
Increase in cash and cash equivalents  95,672   6,488 
Cash and cash equivalents at beginning of period  22,104   28,899 
         
Cash and cash equivalents at end of period $117,776  $35,387 
Three Months Ended March 31,
20232022
Cash flows from operating activities:
Net loss$(53,333)$(74,196)
Adjustments to reconcile net loss to net cash used in operating activities:  
Depreciation and amortization405 317 
Inventory obsolescence236 — 
Stock-based compensation expense14,007 9,601 
Non-cash interest expense on royalty financing obligations and secured term loan and amortization of debt issuance costs20,216 19,003 
Amortization of premium/discount on investments(1,385)30 
Changes in operating assets and liabilities:  
Receivables2,019 (7,048)
Inventory131 (354)
Prepaid expenses and other assets(2,547)(2,320)
Accounts payable and accrued expenses(27,226)(22,908)
Deferred revenue(35)75 
Net cash used in operating activities(47,512)(77,800)
  
Cash flows from investing activities:  
Acquisitions of property and equipment(160)(406)
Purchase of investments(148,637)(38,066)
Sales and maturities of investments41,688 — 
Net cash used in investing activities(107,109)(38,472)
  
Cash flows from financing activities:  
Net proceeds from common stock issued under stock-based compensation plans5,077 7,356 
Net cash provided by financing activities5,077 7,356 
Effect of exchange rate on cash, cash equivalents, and restricted cash(96)40 
  
Decrease in cash, cash equivalents and restricted cash(149,640)(108,876)
Cash, cash equivalents and restricted cash at beginning of period306,239 507,734 
Cash, cash equivalents and restricted cash at end of period$156,599 $398,858 

See accompanying notes to consolidated financial statements.

5
3


BIOCRYST PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS DEFICIT
(In thousands, Unaudited)
Common
Stock
Additional
Paid-In
Capital
Accumulated
Other
Comprehensive
Income
Accumulated
Deficit
Total
Stockholders’
Deficit
Balance at December 31, 2022$1,879 $1,158,118 $26 $(1,454,620)$(294,597)
Net loss— — — (53,333)(53,333)
Other comprehensive income— — 559 — 559 
Employee stock purchase plan sales, 176 shares, net1,573 — — 1,575 
Exercise of stock options, 801 shares, net3,494 — — 3,502 
Stock-based compensation expense— 14,007 — — 14,007 
Balance at March 31, 2023$1,889 $1,177,192 $585 $(1,507,953)$(328,287)

Common
Stock
Additional
Paid-In
Capital
Accumulated
Other
Comprehensive
Income
Accumulated
Deficit
Total
Stockholders’
Deficit
Balance at December 31, 2021$1,843 $1,098,498 $177 $(1,207,504)$(106,986)
Net loss— — — (74,196)(74,196)
Other comprehensive income— — — 
Employee stock purchase plan sales, 115 shares, net1,503 — — 1,504 
Exercise of stock options, 1,108 shares, net12 5,841 — — 5,853 
Stock-based compensation expense— 9,601 — — 9,601 
Balance at March 31, 2022$1,856 $1,115,443 $186 $(1,281,700)$(164,215)
See accompanying notes to consolidated financial statements.
4


BIOCRYST PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

(In thousands, except per share amounts)

(Unaudited)

Note 1 Significant Accounting Policies

and Concentrations of Risk

The Company

BioCryst Pharmaceuticals, Inc. (the “Company”) is a commercial-stage biotechnology company that designs, optimizesdiscovers and developscommercializes novel, small molecule drugs that block key enzymes involved in the pathogenesis of diseases.oral, small-molecule medicines. The Company focuses on oral treatments for rare diseases in which significant unmet medical needs exist and that align with its capabilities and expertise.an enzyme plays the key role in the biological pathway of the disease. The Company was founded in 1986 and incorporated in Delaware in 19861991, and its headquarters is located in Durham, North Carolina. The Company integrates the disciplines of biology, crystallography, medicinal chemistry and computer modeling to discover and develop small molecule pharmaceuticals through the process known as structure-guided drug design. BioCryst
The Company’s marketed products include oral, once-daily ORLADEYO® for the prevention of hereditary angioedema (“HAE”) attacks and RAPIVAB® (peramivir injection) for the treatment of acute uncomplicated influenza in the United States. ORLADEYO received regulatory approval in the United States in December 2020. ORLADEYO has incurred lossesalso received regulatory approvals in multiple global markets. The Company is commercializing ORLADEYO in each of these territories directly or through distributors, except in Japan where Torii Pharmaceutical Co., Ltd. (“Torii”), the Company’s collaborative partner, has the exclusive right to commercialize ORLADEYO for the prevention of HAE attacks in exchange for certain milestone and negative cash flows from operations since inception. 

Withroyalty payments to the funds available at September 30, 2017,Company. In addition to its approval in the United States, peramivir injection has received regulatory approvals in Canada, Australia, Japan, Taiwan and Korea.

Based on the Company’s expectations for revenue and operating expenses, the Company believes theseits financial resources available at March 31, 2023 will be sufficient to fund its operations for at least through the third quarter of 2019.next 12 months. The Company has sustained operating losses for the majority of its corporate history and expects that its 20172023 expenses will exceed its 20172023 revenues. The Company expects to continue to incur operating losses and negative cash flows until revenues reach a level sufficient to support ongoing operations. The Company’s liquidity needs will largely be largely determined by the success of operations in regardsregard to the successful commercialization of its products and the progression of its product candidates in the future. The Company also may considerregularly evaluates other plansopportunities to fund future operations, beyond the third quarter of 2019 including: (1) securing or increasing U.S. Government funding of its programs, including obtaining procurement contracts; (2) out-licensing rights to certain of its products or product candidates, pursuant to which the Company would receive cash milestones; (3)milestone payments; (2) raising additional capital through equity or debt financings or from other sources; (4)sources, including royalty or other monetization transactions; (3) obtaining additional product candidate regulatory approvals, which would generate revenue, milestonesmilestone payments and cash flow; (5)(4) reducing spending on one or more research and development programs, including by discontinuing development; and/or (6)(5) restructuring operations to change its overhead structure.structure; and/or (6) securing U.S. Government funding of its programs, including obtaining procurement contracts. The Company may issue securities, including common stock, preferred stock, depositary shares, stock purchase contracts, warrants, debt securities and units, through private placement transactions or registered public offerings in the future. The Company’s future liquidity needs, and ability to address those needs, will largely be determined by the success of its products and product candidatescandidates; the timing, scope and magnitude of its research and development and commercial expenses; and key developmentdevelopments and regulatory events and its decisions in the future.

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, JPR Royalty Sub LLC (“Royalty Sub”) and MDCP, LLC (“MDCP”). Both subsidiaries were formed to facilitate financing transactions for the Company. Royalty Sub was formed in connection with a $30,000 financing transaction the Company completed on March 9, 2011. See Note 4, Royalty Monetization, for a further description of this transaction. MDCP was formed in connection with a $23,000 Senior Credit Facility that the Company closed on September 23, 2016. See Note 5, Senior Credit Facility, for a further description of this transaction.subsidiaries. All intercompany transactions and balances among the consolidated entities have been eliminated.

eliminated from the consolidated financial statements.

The Company’s consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial reporting and the instructions to Form 10-Q and do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. Such financial statements reflect all adjustments that are, in management’s opinion, necessary to present fairly, in all material respects, the Company’s consolidated financial position, results of operations, and cash flows. There were no adjustments other than normal recurring adjustments.


The Company has made certain presentation changes relative to its revenue, which management considers fundamental to understanding the Company’s current business and financial performance related to its primary product,
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ORLADEYO, including expanded international sales of ORLADEYO, relative to the Company’s other sources of revenue. Accordingly, certain disaggregated revenue information has been provided in this Note 1 and “Note 2—Revenue” to these consolidated financial statements. These presentation changes have been applied to prior year revenue amounts for consistency and comparability.
These financial statements should be read in conjunction with the financial statements for the year ended December 31, 20162022 and the notes thereto included in the Company’s 20162022 Annual Report on Form 10-K. Interim operating results are not necessarily indicative of operating results for the full year. The balance sheet as of December 31, 20162022 has been derived from the audited consolidated financial statements included in the Company’s most recent Annual Report on Form 10-K.

Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. Significant estimates in the Company’s consolidated financial statements have been made relative to the calculation of net product sales, the ORLADEYO and Factor D inhibitors royalty financing obligations, inventory reserves, certain accruals, primarily related to the Company’s research and development expenses, the valuation of stock options and the valuation allowance for deferred tax assets resulting from net operating losses. These estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
Revenue Recognition
The Company recorded the following revenues for the three months ended March 31, 2023 and 2022:
Three Months Ended March 31,
20232022
Product sales, net$68,166 $49,546 
Collaborative and other revenues612 377 
Total revenues$68,778 $49,923 
Pursuant to Accounting Standards Codification (“ASC”) Topic 606, the Company recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core principle, Topic 606 includes provisions within a five step model that includes (i) identifying the contract with a customer, (ii) identifying the performance obligations in the contract, (iii) determining the transaction price, (iv) allocating the transaction price to the performance obligations, and (v) recognizing revenue when, or as, an entity satisfies a performance obligation.
At contract inception, the Company identifies the goods or services promised within each contract, assesses whether each promised good or service is distinct, and determines those that are performance obligations. The Company recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when the performance obligation is satisfied.
Product Sales, Net
The Company’s principal sources of product sales are sales of ORLADEYO, which the Company began shipping to patients in December 2020, sales of peramivir to the Company’s licensing partners and sales of RAPIVAB to the U.S. Department of Health and Human Services (“HHS”) under the Company’s procurement contract. In the United States, the Company ships ORLADEYO directly to patients through a single specialty pharmacy, which is considered its customer. In the European Union, United Kingdom and elsewhere, the Company sells ORLADEYO to specialty distributors as well as hospitals and pharmacies, which collectively are considered its customers.
The Company recognizes revenue for sales when its customers obtain control of the product, which generally occurs upon delivery. For ORLADEYO, the Company classifies payments to its specialty pharmacy customer for certain services provided by its customer as selling, general and administrative expenses to the extent such services provided are determined to be distinct from the sale of its product.
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Net revenue from sales of ORLADEYO is recorded at net selling price (transaction price), which includes estimates of variable consideration for which reserves are established for (i) estimated government rebates, such as Medicaid and Medicare Part D reimbursements, and estimated managed care rebates, (ii) estimated chargebacks, (iii) estimated costs of co-payment assistance programs and (iv) product returns. These reserves are based on the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable or as a current liability. Overall, these reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the terms of the applicable contract. The amount of variable consideration included in the transaction price may be constrained and is included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results in the future vary from estimates, the Company adjusts these estimates, which would affect net product revenue and earnings in the period such variances become known.
Government and Managed Care Rebates. The Company contracts with government agencies and managed care organizations or, collectively, third-party payors, so that ORLADEYO will be eligible for purchase by, or partial or full reimbursement from, such third-party payors. The Company estimates the rebates it will provide to third-party payors and deducts these estimated amounts from total gross product revenues at the time the revenues are recognized. These reserves are recorded in the same period in which the revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. The Company estimates the rebates that it will provide to third-party payors based upon (i) the Company’s contracts with these third-party payors, (ii) the government mandated discounts applicable to government-funded programs, (iii) a range of possible outcomes that are probability-weighted for the estimated payor mix, and (iv) product distribution information obtained from the Company’s specialty pharmacy.
Chargebacks. Chargebacks are discounts that occur when certain contracted customers, pharmacy benefit managers, insurance companies, and government programs purchase directly from the Company’s specialty pharmacy. These customers purchase the Company’s products under contracts negotiated between them and the Company’s specialty pharmacy. The specialty pharmacy, in turn, charges back to the Company the difference between the price the specialty pharmacy paid and the negotiated price paid by the contracted customers, which may be higher or lower than the specialty pharmacy’s purchase price from the Company. The Company estimates chargebacks and adjusts gross product revenues and accounts receivable based on the estimates at the time revenues are recognized.
Co-payment assistance and patient assistance programs. Patients who have commercial insurance and meet certain eligibility requirements may receive co-payment assistance. Based upon the terms of the program and co-payment assistance utilization reports received from the specialty pharmacy, the Company is able to estimate the co-payment assistance amounts, which are recorded in the same period in which the related revenue is recognized, resulting in a reduction of product revenue. The Company also offers a patient assistance program that provides free drug product, for a limited period of time, to allow a patient’s insurance coverage to be established. Based on patient assistance program utilization reports provided by the specialty pharmacy, the Company records gross revenue of the product provided and a full reduction of the revenue amount for the free drug discount.
Product returns. The Company does not provide contractual return rights to its customers, except in instances where the product is damaged or defective. Non-acceptance by the patient of shipped drug product by the specialty pharmacy is reflected as a reversal of sales in the period in which the sales were originally recorded. Reserves for estimated non-acceptances by patients are recorded as a reduction of revenue in the period that the related revenue is recognized, as well as a reduction to accounts receivable. Estimates of non-acceptance are based on quantitative information provided by the specialty pharmacy.
Collaborative and Other Revenues
The Company has collaboration and license agreements with a number of third parties, as well as research and development agreements with certain government entities. The Company’s primary sources of revenue from these collaborative and other research and development arrangements are license, service and royalty revenues.
Revenue from license fees, royalty payments, milestone payments, and research and development fees are recognized as revenue when the earnings process is complete and the Company has no further continuing performance obligations or the Company has completed the performance obligations under the terms of the agreement.
Arrangements that involve the delivery of more than one performance obligation are initially evaluated as to whether the intellectual property licenses granted by the Company represent distinct performance obligations. If they are determined to be distinct, the value of the intellectual property licenses would be recognized up-front while the research and development service fees would be recognized as the performance obligations are satisfied. For performance obligations
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based on services performed, the Company measures progress using an input method based on the effort it expends or costs it incurs toward the satisfaction of the performance obligation in relation to the total estimated effort or costs. Variable consideration is assessed at each reporting period as to whether it is not subject to significant future reversal and, therefore, should be included in the transaction price at the inception of the contract. If a contract includes a fixed or minimum amount of research and development support, this also would be included in the transaction price. Changes to collaborations, such as the extensions of the research term or increasing the number of targets or technology covered under an existing agreement, are assessed for whether they represent a modification or should be accounted for as a new contract. For contracts with multiple performance obligations, revenue is allocated to each performance obligation based on its relative standalone selling price. Standalone selling prices are based on observable prices at which the Company separately sells the products or services. If a standalone selling price is not directly observable, then the Company estimates the standalone selling price using either an adjusted market assessment approach or an expected cost plus margin approach, representing the amount that the Company believes the market is willing to pay for the product or service. Analyzing the arrangement to identify performance obligations requires the use of judgment, and each may be an obligation to deliver services, a right or license to use an asset, or another performance obligation.
Milestone payments are recognized as licensing revenue upon the achievement of specified milestones if (i) the milestone is substantive in nature and the achievement of the milestone was not probable at the inception of the agreement and (ii) the Company has a right to payment. Any milestone payments received prior to satisfying these revenue recognition criteria are recorded as deferred revenue.
Reimbursements received for direct out-of-pocket expenses related to research and development costs are recorded as revenue in the Consolidated Statements of Comprehensive Loss rather than as a reduction in expenses. Under the Company’s contracts with the Biomedical Advanced Research and Development Authority within HHS (“BARDA/HHS”) and the National Institute of Allergy and Infectious Diseases (“NIAID/HHS”), revenue is recognized as reimbursable direct and indirect costs are incurred.
Under certain of the Company’s license agreements, the Company receives royalty payments based upon its licensees’ net sales of covered products. Royalties are recognized at the later of when (i) the subsequent sale or usage occurs, or (ii) the performance obligation to which some or all of the sales-based or usage-based royalty has been satisfied.
Cash and Cash Equivalents

The Company generally considers cash equivalents to be all cash held in commercial checking accounts, certificates of deposit, money market accounts or investments in debt instruments with maturities of three months or less at the time of purchase. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these items.

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Restricted Cash

Restricted cash of $12 and $23 as of September 30, 2017March 31, 2023 and December 31, 2022, respectively, reflects $1,713 in royalty revenue paid by Shionogi & Co., Ltd. (“Shionogi”) designated for interest on the PhaRMA Senior Secured 14.0% Notes (defined in Note 4)due on December 1, 2020 (the “PhaRMA Notes”) issued by JPR Royalty Sub LLC, a wholly-owned subsidiary of the Company. Additionally, restricted cash of $1,451 and $1,409$1,449 as of March 31, 2023 and December 31, 2022, respectively, reflects collateral for a letter of credit the Company is required to maintain as collateral for a letter of credit associated with the lease execution and build-out of its Birmingham research facilities.

Investments

The Company invests in high credit quality investments in accordance with its investment policy, which is designed to minimize the possibility of loss. The objective of the Company’s investment policy is to ensure the safety and preservation of invested funds, as well as maintaining liquidity sufficient to meet cash flow requirements. The Company places its excess cash with high credit quality financial institutions, commercial companies, and government agencies in order to limit the amount of its credit exposure. In accordance with its policy, the Company is able to invest in marketable debt securities that may consist of U.S. Government and government agency securities, money market and mutual fund investments, certificates of deposits, municipal and corporate notes and bonds, and commercial paper, and asset or mortgage-backed securities, among others. The Company’s investment policy requires it to purchase high-quality marketable securities with a maximum individual maturity of three years and requires an average portfolio maturity of no more than 1812 months. Some of the securities in which the Company invests in may have market risk. This means that a change in prevailing interest rates may cause the principal amount of the investment to fluctuate. To minimize this risk, the Company schedules its investments with maturities that coincide with expected cash flow needs, thus avoiding the need to redeem an investment prior to its maturity
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date. Accordingly, the Company does not believe it has a material exposure to interest rate risk arising from its investments. Generally, the Company’s investments are not collateralized. The Company has not realized any significant losses from its investments.

The Company classifies all of its investments as available-for-sale. Unrealized gains and losses on investments are recognized in comprehensive loss, unless an unrealized loss is considered to be other than temporary, in which case the unrealized loss is charged to operations. The Company periodically reviews its investments for other than temporary declines in fair value below cost basis and whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The Company believes the individual unrealized losses represent temporary declines primarily resulting from interest rate changes. Realized gains and losses are reflected in interest and other income in the Consolidated Statements of Comprehensive Loss and are determined using the specific identification method with transactions recorded on a settlement date basis. Investments with original maturities at date of purchase beyond three months and which mature at or less than 12 months from the balance sheet date are classified as current. Investments with a maturity beyond 12 months from the balance sheet date are classified as long-term. At September 30, 2017,March 31, 2023, the Company believes that the cost of its investments is recoverable in all material respects.

Trade Receivables
The following tables summarize the fair valuemajority of the Company’s investments by type. The estimated fair values of the Company’s fixed income investments are classified as Level 2trade receivables arise from product sales and primarily represent amounts due from its specialty pharmacy customer in the fair value hierarchy as definedUnited States and other third-party distributors, hospitals and pharmacies in U.S. GAAP. These valuations are based on observable directthe European Union, United Kingdom and indirect inputs, primarily quoted prices of similar, but not identical, instruments in active markets or quoted prices for identical or similar instruments in marketselsewhere and have standard payment terms that are not active. These fair values are obtained from independent pricing services which utilize Level 2 inputs.

  September 30, 2017
  Amortized
Cost
 Accrued
Interest
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Estimated
Fair Value
Obligations of the U.S. Government and its agencies $27,897  $96  $  $(7) $27,986 
Corporate debt securities  8,230   39      (8)  8,261 
Certificates of deposit  12,108   34   4   (6)  12,140 
                     
Total investments $48,235  $169  $4  $(21) $48,387 

  December 31, 2016
  Amortized
Cost
 Accrued
Interest
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Estimated
Fair Value
Obligations of the U.S. Government and its agencies $20,266  $34  $2  $(4) $20,298 
Corporate debt securities  6,179   26   2   (8)  6,199 
Certificates of deposit  14,962   17   7   (11)  14,975 
                     
Total investments $41,407  $77  $11  $(23) $41,472 

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generally require payment within 30 to 90 days.

The following table summarizes the scheduled maturity for the Company’s investments at September 30, 2017 and December 31, 2016.

  2017 2016
Maturing in one year or less $43,848  $32,546 
Maturing after one year through two years  4,539   8,926 
         
Total investments $48,387  $41,472 

Receivables from Collaborations

Receivables from collaborations are recorded for amounts due to the Company related to reimbursable research and development costs from the U.S. Department of HealthHHS, and Human Services, royalty receivables from the Company’s partners, including Shionogi, Green Cross, Corporation (“Green Cross”), Mundipharma International Holdings Limited (“Mundipharma”) and Seqirus UK Limited (“SUL”), and product sales to SUL. These receivables are evaluated to determine if any reserve or allowance should be established at each reporting date. At September 30, 2017 and December 31, 2016, the Company had the following receivables.

Torii.
  September 30, 2017
  Billed Unbilled Total
U.S. Department of Health and Human Services $63  $1,906  $1,969 
Shionogi & Co. Ltd.  653      653 
Green Cross Corporation  48      48 
Mundipharma International Holdings Limited  46      46 
Seqirus UK Limited  5,794   475   6,269 
             
Total receivables $6,604  $2,381  $8,985 

  December 31, 2016
  Billed Unbilled Total
U.S. Department of Health and Human Services $  $3,495  $3,495 
Shionogi & Co. Ltd.  3,451      3,451 
Green Cross Corporation  686      686 
Seqirus UK Limited  957   179   1,136 
             
Total receivables $5,094  $3,674  $8,768 

Monthly invoices are submitted to the U.S. Department of Health and Human ServicesHHS related to reimbursable research and development costs. The Company is also entitled to monthly reimbursement of indirect costs based on rates stipulated in the underlying contract. The Company’s calculations of its indirect cost rates are subject to audit by the U.S. Government.

Receivables

The Company does not adjust its receivables for the effects of a significant financing component at contract inception if it expects to collect the receivables in one year or less from Product Sales

Receivablesthe time of sale.

The Company provides reserves against trade receivables for estimated losses that may result from product sales are recorded for amounts duea customer's inability to the Company related to sales of RAPIVAB®. These receivablespay. Receivables are evaluated to determine if any reserve or allowance should be established at each reporting date.

recorded based on consideration of the current economic environment, expectations of future economic conditions, specific circumstances and the Company’s own historical collection experience. Amounts determined to be uncollectible are charged or written-off against the reserve.

Inventory

The Company’s inventory consistedinventories primarily of peramivir work in process and is being manufactured forrelate to ORLADEYO. Additionally, the Company’s partners. Inventory is statedinventories include RAPIVAB and peramivir.
The Company values its inventories at the lower of cost andor estimated net realizable value, determined undervalue. The Company determines the cost of its inventories, which includes amounts related to materials, labor, manufacturing overhead and shipping and handling costs on a first-in, first-out (“FIFO”) method,(FIFO) basis. Raw materials and work-in-process include all inventory costs prior to packaging and labeling, including raw material, active product ingredient, and the drug product. Finished goods include packaged and labeled products.
The Company’s inventories are subject to expiration dating. The Company regularly evaluates the carrying value of its inventories and provides valuation reserves for any estimated obsolete, short-dated or market. unmarketable inventories. In addition, the Company may experience spoilage of its raw materials and supplies. The Company’s determination that a valuation reserve might be required, in addition to the quantification of such reserve, requires it to utilize significant judgment. During the quarter ended March 31, 2023, the Company evaluated its inventory levels and associated expiration dating relative to the latest sales forecasts for ORLADEYO and RAPIVAB and estimated those inventories at risk of obsolescence. Accordingly, the Company recorded an increase to the inventory valuation reserve of $236 for a total reserve of $1,413 as of March 31, 2023.
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The Company expenses costs related to the production of inventories as research and development expenses in the period incurred until such time it is believed that future economic benefit is expected to be recognized, which generally is reliant upon receipt of regulatory approval. Upon regulatory approval, the Company will capitalizecapitalizes subsequent costs related to the production of inventories.

Property and Equipment

Property and equipment are recorded at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. Computer equipment is depreciated over a life of three years. Laboratory equipment, office equipment, and software are depreciated over a life of five years. Furniture and fixtures are depreciated over a life of seven years. Leasehold improvements are amortized over their estimated useful lives or the expected lease term, whichever is less. Property consists of a leased building which did not meet the sale-leaseback criteria and is recorded at its fair value, less depreciation. The building is being depreciated over a period equal to the expected term of the related lease.

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In accordance with U.S. GAAP, the Company periodically reviews its property and equipment for impairment when events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, the assets are written down to their estimated fair values. Property and equipment to be disposed of are reported at the lower of carrying amount or fair value less cost to sell.

Patents and Licenses

Accrued Expenses
The Company seeks patent protection on all internally developed processes and products. All patent related costs are expensed to general and administrative expenses when incurred as recoverability of such expenditures is uncertain.

Accrued Expenses

The Company generally enters into contractual agreements with third-party vendors who provide research and development, manufacturing, distribution, and other services in the ordinary course of business. Some of these contracts are subject to milestone-based invoicing, and services are completed over an extended period of time. The Company records liabilities under these contractual commitments when it determines an obligation has been incurred, regardless of the timing of the invoice. This process involves reviewing open contracts and purchase orders, communicating with applicable Company personnel to identify services that have been performed on its behalf and estimating the level of service performed and the associated cost incurred for the service when the Company has not yet been invoiced or otherwise notified of actual cost. The majority of service providers invoice the Company monthly in arrears for services performed. The Company makes estimates of accrued expenses as of each balance sheet date in its financial statements based on the facts and circumstances.circumstances, which can include assumptions such as expected patient enrollment, site activation and estimated project duration. The Company periodically confirms the accuracy of its estimates with itsthe service providers and makes adjustments if necessary. Examples of estimated accrued expenses include:

fees paid to Contract Research Organizations (“CROs”) in connection with preclinical and toxicology studies and clinical trials;
fees paid to investigative sites in connection with clinical trials;
fees paid to contract manufacturers in connection with the production of the Company’s raw materials, drug substance and drug products; and
professional fees.

include (i) fees paid to clinical research organizations (“CROs”) in connection with preclinical and toxicology studies and clinical trials; (ii) fees paid to investigative sites in connection with clinical trials; (iii) fees paid to contract manufacturers in connection with the production of the Company’s raw materials, drug substance, drug products, and product candidates; and (iv) professional fees.

The Company bases its expenses related to clinical trials on its estimates of the services received and efforts expended pursuant to contracts with multiple research institutions and CROs that conduct and manage clinical trials on the Company’s behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. Payments under some of these contracts depend on factors such as the successful enrollment of patients and the completion of clinical trial milestones. In accruing service fees, the Company estimates the time period over which services will be performed and the level of effort expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, the Company will adjust the accrual accordingly. If the Company does not identify costs that it has begun to incur or if it underestimates or overestimates the level of these costs, actual expenses could differ from such estimates. As of September 30, 2017March 31, 2023 and December 31, 2016,2022, the carrying value of accrued expenses approximates their fair value due to their short-term settlement.

Income Taxes

The liability method is used in

Cost of Product Sales
Cost of product sales includes the Company’s accounting for income taxes. Under this method, deferred tax assetscost of producing and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse.

Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss is comprised of unrealized gains and losses on available-for-sale investments and is disclosed as a separate component of stockholders’ equity. Amounts reclassified from accumulated other comprehensive loss are recorded as interest and other income on the Consolidated Statements of Comprehensive Loss. No reclassifications out of accumulated other comprehensive loss were recorded during the nine months ended September 30, 2017. Realized gains of $11 were reclassified out of accumulated other comprehensive loss during the nine months ended September 30, 2016.

Revenue Recognition

The Company recognizes revenues from collaborative and other research and development arrangements and royalties when realized or realizable and earned. Revenue is realized or realizable and earned when all of the following criteria are met: (i) persuasive evidence of an arrangement exists; (ii) delivery has occurred or services have been rendered; (iii) the seller’s price to the buyer is fixed or determinable; and (iv) collectability is reasonably assured.

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Collaborative and Other Research and Development Arrangements and Royalties

Revenue from license fees, royalty payments, event payments, and research and development fees are recognized as revenue when the earnings process is complete and the Company has no further continuing performance obligations or the Company has completed the performance obligations under the terms of the agreement. Fees received under licensing agreementsdistributing inventories that are related to future performance are deferredproduct revenue during the respective period, including freight. In addition, shipping and recognized over an estimated period determined by management based on the terms of the agreement and the products licensed. Revisions to revenue or profit estimates as a result of changes in the estimated revenue period are recognized prospectively. 

Under certain of the Company’s license agreements, the Company receives royalty payments based upon its licensees’ net sales of covered products. The Company recognizes royalty revenues when it can reliably estimate such amounts and collectability is reasonably assured. 

For arrangements that involve the delivery of more than one element, eachhandling costs for product service and/or right to use assets is evaluated to determine whether it qualifies as a separate unit of accounting. This determination is based on whether the deliverable has “stand-alone value” to the customer. The consideration that is fixed or determinable is then allocated to each separate unit of accounting based on the relative selling price of each deliverable. The estimated selling price of each deliverable is determined using the following hierarchy of values: (i) vendor-specific objective evidence of fair value, (ii) third-party evidence of selling price (“TPE”) and (iii) best estimate of selling price (“BESP”). The BESP reflects the Company’s best estimate of what the selling price would be if the deliverable was regularly sold by the Company on a stand-alone basis. In most cases the Company expects to use TPE or BESP for allocating consideration to each deliverable. The consideration allocated to each unit of accounting is recognized as the related goods or services are delivered, limited to the consideration that is not contingent upon future deliverables. Analyzing the arrangement to identify deliverables requires the use of judgment, and each deliverable may be an obligation to deliver services, a right or license to use an asset, or another performance obligation.

In June 2015, the Company entered into a License Agreement (the “SUL Agreement”) granting SUL and its affiliates worldwide rights, excluding Israel, Japan, Korea and Taiwan, to develop, manufacture and commercialize RAPIVAB. The SUL Agreement provides for various types of payments, including a non-refundable upfront fee, milestone payments, and future royalties. Analysis of the SUL Agreement identified three deliverables: (i) license rights, (ii) inventory and (iii) regulatory support to obtain Canadian and European Union (“EU”) marketing approvals. The Company received an upfront payment of $33,740 from SUL, of which $7,000 was determined to be contingent upon EU marketing approval and will be deferred until that time. Approximately $21,777 of the upfront payment was allocated to the license rights and recognized as revenue in 2015. Approximately $3,740 of the upfront payment was allocated to the pending sale of inventory and was recognized in 2015, when the inventory transfer was completed. Approximately $1,223 of the revenue from the SUL Agreement will be recognized over the expected period of involvement in these regulatory support activities.

Milestone payments are recognized as licensing revenue upon the achievement of specified milestones if (i) the milestone is substantive in nature and the achievement of the milestone was not reasonably assured at the inception of the agreement; and (ii) the fees are non-refundable. Any milestone payments received prior to satisfying these revenue recognition criteriashipments are recorded as deferred revenue. 

During the first nine monthsincurred. Finally, cost of 2017, the Company received a $2,000 milestone paymentproduct sales may also include costs related to the approval of RAPIVAB by Health Canada and a $5,000 milestone payment associated with the U.S. Food and Drug Administration (“FDA”) approval of a supplemental new drug application (“sNDA”) for RAPIVAB extending its availability for the treatment of acute uncomplicated influenza to pediatric patients two years and older. The Company evaluated each event based payment under the provisions of ASU 2010-17, Milestone Method of Revenue Recognition, and determined that each event based payment met the criteria to be considered substantive and represents a milestone under the milestone method of accounting. Under the terms of the SUL Agreement, the Company may receive an additional $5,000 payment related to the successful marketing approval by the European Medicines Agency (“EMA”) for an adult indication in the EU. No event-based payments were achieved during the first nine months of 2016. 

Reimbursements received for direct out-of-pocket expenses related to research and development costs are recorded as revenue in the Consolidated Statements of Comprehensive Loss rather than as a reduction in expenses. Under the Company’s contracts with the Biomedical Advanced Research and Development Authority within the United States Department of Health and Human Services (”BARDA/HHS”) and the National Institute of Allergy and Infectious Diseases (“NIAID/HHS”), revenue is recognized as reimbursable direct and indirect costs are incurred. 

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excess or obsolete inventory adjustment charges.

The Company recorded the following revenues for the three and nine months ended September 30, 2017 and 2016:

  Three Months Nine Months
  2017 2016 2017 2016
Product sales $1,501  $  $1,501  $ 
Royalty revenue  442   3,501   7,252   6,020 
Collaborative and other research and development revenues:                
U.S. Department of Health and Human Services  1,490   3,813   4,305   9,846 
Shionogi & Co. Ltd.  296   296   888   888 
Seqirus UK Limited  5,031   153   7,350   616 
Total collaborative and other research and development revenues  6,817   4,262   12,543   11,350 
                 
Total revenues $8,760  $7,763  $21,296  $17,370 

Research and Development Expenses

The Company’s research and development costs are charged to expense when incurred. Research and development expenses include all direct and indirect development costs related to the development of the Company’s portfolio of product candidates. Advance payments for goods or services that will be used or rendered for future research and
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development activities are deferred and capitalized. Such amounts are recognized as expense when the related goods are delivered or the related services are performed. Research and development expenses include, among other items, personnel costs, including salaries and benefits, manufacturing costs, clinical, regulatory, and toxicology services performed by CROs, materials and supplies, and overhead allocations consisting of various administrative and facilities related costs.costs, as well as termination fees and other commitments associated with discontinued programs. Most of the Company’s manufacturing and clinical and preclinical studies are performed by third-party CROs. Costs for studies performed by CROs are accrued by the Company over the service periods specified in the contracts, and estimates are adjusted, if required, based upon the Company’s on-goingongoing review of the level of services actually performed.

Additionally, the Company has license agreements with third parties such as Albert Einstein College of Medicine of Yeshiva University (“AECOM”), Industrial Research, Ltd. (“IRL”), and the University of Alabama at Birmingham (��UAB”), which require fees related to sublicense agreements or maintenance fees. The Company expenses sublicense payments as incurred unless they are related to revenues that have been deferred, in which case the expenses are deferred and recognized over the related revenue recognition period. The Company expenses maintenance payments as incurred.

Deferred collaboration expenses represent sub-licensesublicense payments paid to the Company’s academic partners upon receipt of consideration from various commercial partners, and other consideration paid to the Company’s academic partners for modification to existing license agreements. These deferred expenses would not have been incurred without receipt of such payments or modifications from the Company’s commercial partners and are being expensed in proportion to the related revenue being recognized. The Company believes that this accounting treatment appropriately matches expenses with the associated revenue.

The Company groups its research and development expenses into two major categories: direct expenses and indirect expenses. Direct expenses consist of compensation for research and development personnel and costs of outside parties to conduct laboratory studies, develop manufacturing processes and manufacture the product candidate, conduct and manage clinical trials, as well as other costs related to the Company’s clinical and preclinical studies. Additionally, direct expenses consist of those costs necessary to discontinue and close out a development program, including termination fees and other commitments. These costs are accumulated and tracked by active program. Indirect expenses consist of lab supplies and services, facility expenses, depreciation of development equipment and other overhead of the Company’s research and development efforts. These costs apply to work on non-active product candidates and the Company’s discovery research efforts.
Selling, General and Administrative Expenses
Selling, general and administrative expense is primarily comprised of compensation and benefits associated with sales and marketing, finance, human resources, legal, information technology and other administrative personnel. Additionally, selling, general and administrative expenses are comprised of market research, marketing, advertising and legal expenses, including patent costs, licenses and other general and administrative costs.
Advertising expenses related to ORLADEYO were $4,047 and $3,984 for the three months ended March 31, 2023, and 2022, respectively.
All patent related costs are expensed to selling, general and administrative expenses when incurred as recoverability of such expenditures is uncertain.
Leases
The Company leases certain assets under operating leases, which primarily consisted of real estate leases, laboratory equipment leases and office equipment leases as of March 31, 2023. The Company accounts for lease obligations in accordance with ASU 2016-02: Leases (Topic 842), which requires a lessee to recognize a right-of-use asset and a lease liability on its balance sheet for most operating leases.
Certain of the Company’s operating leases provide for renewal options, which can vary by lease. The right-of-use asset and lease liabilities on the Company’s Consolidated Balance Sheets represent payments over the lease term, which includes renewal options for certain real estate leases that the Company is likely to exercise. As part of the Company’s assessment of the lease term, the Company elected the hindsight practical expedient, which allows companies to use current knowledge and expectations when determining the likelihood to extend lease options. Certain operating leases include rent escalation provisions, which the Company recognizes as expense on a straight-line basis. Lease expense for leases with an initial term of twelve months or less was not material.
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The discount rate used in the calculation of the Company’s right-of-use asset and lease liability was determined based on the stated rate within each contract when available, or the Company’s collateralized borrowing rate from lending institutions.
The Company has not made any residual value guarantees related to its operating leases; therefore, the Company has no corresponding liability recorded on its Consolidated Balance Sheets.
Stock-Based Compensation

All share-based payments, including grants of stock option awards and restricted stock unit awards, are recognized in the Company’s Consolidated Statements of Comprehensive Loss based on their fair values. TheStock-based compensation cost is estimated at the grant date based on the fair value of stock option awards is estimated using the Black-Scholes option pricing model. The fair value of restricted stock unit awards is based on the grant date closing price of the common stock. Stock-based compensation costaward and is recognized as expense on a straight-line basis over the requisite service period of the award. Determining the appropriate fair value model and the related assumptions for the model requires judgment, including estimating the life of an award, the stock price volatility, and the expected term. The Company utilizes the Black-Scholes option-pricing model to value its stock option awards and recognize compensation expense on a straight-line basis over the vesting periods. The estimation of share-based payment awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from the Company’s current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. In addition, we havethe Company has outstanding performance-based stock options and restricted stock units for which no compensation expense is recognized until “performance” is deemed to have occurred.

Significant management judgment is also required in determining estimates of future stock price volatility and forfeitures to be used in the valuation of the options. Actual results, and future changes in estimates, may differ substantially from the Company’s current estimates.

Interest Expense and Deferred Financing Costs

Interest expense for the three months ended September 30, 2017March 31, 2023 and 20162022, was $2,140$27,396 and $1,465, respectively, and for the nine months ended September 30, 2017 and 2016 was $6,334 and $4,356,$23,837, respectively, and primarily relates to the issuance of the PhaRMA Notes (defined in Note 4)royalty financing obligations (Note 6) and the Seniorsecured term loan borrowing from the Athyrium Credit Facility (defined in Note 5)Agreement (Note 7). Costs directly associated with the issuance of the PhaRMA Notes and the Senior Credit Facilityborrowings have been capitalized and are netted against the PhaRMA Notes and Senior Credit Facilitycorresponding debt liabilities on the Consolidated Balance Sheets. These costs are being amortized to interest expense over the terms of the PhaRMA Notes and the Senior Credit Facilitycorresponding borrowings using the effective interest rate method. Amortization of deferred financing costs and original issue discount included in interest expense was $219$898 and $116 for each of the three months ended September 30, 2017 and 2016, respectively, and $658 and $335 for each of the nine months ended September 30, 2017 and 2016, respectively.

Lease Financing Obligation

Based on the terms of the lease agreement for the research facility in Birmingham, Alabama, the Company had construction period risks during the construction period and the Company was deemed the owner of the building (for accounting purposes only) during the construction period. Accordingly, the Company recorded an asset of $1,589 at December 31, 2015, representing the Company’s leased portion of the building and recorded a corresponding liability. Upon completion of leasehold improvement construction, which ended in 2016, the Company did not meet the sale-leaseback criteria for de-recognition of the building asset and liability. Therefore, the lease is accounted for as a financing obligation. The asset will be depreciated over the expected duration of the lease of 20.5 years, and rental payments will be treated as principal and interest payments on the lease financing obligation liability. The underlying accounting for this transaction has no impact on cash flows associated with the underlying lease or construction in process. Interest expense$(167) for the three months ended September 30, 2017March 31, 2023 and 2016 includes $822022, respectively. When utilizing the effective interest method, in periods in which PIK interest was designated and $86, respectively,was added to the outstanding principal balance of the borrowing, the amortization of the deferred debt fees and issuance costs was accretive. The quarter ended December 31, 2022 was the last period eligible for the nine months ended September 30, 2017PIK Interest Payment designation under the Athyrium Credit Agreement.

Interest Expense and 2016 includes $217Royalty Financing Obligations
The royalty financing obligations are eligible to be repaid based on royalties from net sales of ORLADEYO and $300, respectively,BCX10013. Interest expense is accrued using the effective interest rate method over the estimated period each of the related liabilities will be paid. This requires the Company to estimate the total amount of future royalty payments to be generated from product sales over the life of the agreement. The Company imputes interest on the carrying value of each of the royalty financing obligations and records interest expense using an imputed effective interest rate. The Company reassesses the expected royalty payments each reporting period and accounts for any changes through an adjustment to the lease financing obligation.

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Ateffective interest rate on a prospective basis. The assumptions used in determining the expected repayment term of the debt and amortization period of the issuance costs require that the Company make estimates that could impact the carrying value of each of September 30, 2017 and December 31, 2016, the lease financing obligation balance was $2,704 and was recordedliabilities, as a long term liability onwell as the consolidated balance sheets. At September 30, 2017 the remaining future minimum payments under the lease financing obligation are $4,444.

Currency Hedge Agreement

In connection with theperiods over which associated issuance by Royalty Subcosts will be amortized. A significant increase or decrease in forecasted net sales could materially impact each of the PhaRMA Notes,liability balances, interest expense and the Company entered into a Currency Hedge Agreement to hedge certain risks associated with changes in the value of the Japanese yen relative to the U.S. dollar. time periods for repayment.

Income Taxes
The Currency Hedge Agreement does not qualify for hedge accounting treatment; therefore mark to market adjustments are recognizedliability method is used in the Company’s Consolidated Statements of Comprehensive Loss. Cumulative mark to market adjustmentsaccounting for the nine months ended September 30, 2017income taxes. Under this method, deferred tax assets and 2016 resulted in losses of $1,858 and $7,372, respectively. Mark to market adjustmentsliabilities are determined by a third party pricing model that uses quoted prices in marketsbased on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that are not actively tradedexpected to be in effect when the differences are expected to reverse.
The Company accounts for uncertain tax positions in accordance with U.S. GAAP. Significant management judgment is required in determining the Company’s provision for income taxes, deferred tax assets and liabilities and any valuation allowance recorded against net deferred tax assets. The Company has recorded a valuation allowance against substantially all potential tax assets, due to uncertainties in its ability to utilize deferred tax assets, primarily consisting of
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certain net operating losses carried forward, before they expire. The valuation allowance is based on estimates of taxable income in each of the jurisdictions in which the Company operates and the period over which its deferred tax assets will be recoverable.
Beginning in fiscal year 2021, the Company began accruing for which significant inputs are observable directly or indirectly, representing Level 2U.S. state taxes and foreign income taxes as a result of increased nexus in both U.S. state and foreign jurisdictions where historically the Company had no presence.
In addition, starting in 2022, amendments to Section 174 of the Internal Revenue Code of 1986, as amended (“IRC”), no longer permit an immediate deduction for research and development expenditures in the fair value hierarchy as defined by U.S. GAAP. In addition,tax year that such costs are incurred. Instead, these IRC Section 174 development costs must now be capitalized and amortized over either a five- or 15-year period, depending on the Company realized currency exchange gainslocation of $966 and $811 during the first nine months of 2017 and 2016, respectively, associatedactivities performed. The new amortization period begins with the exercisemidpoint of a U.S. dollar/Japanese yen currency option underany taxable year that IRC Section 174 costs are first incurred, regardless of whether the Currency Hedge Agreement. The Company is also requiredexpenditures were made prior to post collateral in connection withor after July 1, and runs until the mark to market adjustments based on thresholds definedmidpoint of year five for activities conducted in the Currency Hedge Agreement. AsUnited States or year 15 in the case of September 30, 2017 and December 31, 2016, no hedge collateral was posted under the agreement.

development conducted on foreign soil.

Net Loss Per Share

Net loss per share is based upon the weighted average number of common shares outstanding during the period. Diluted loss per share is equivalent to basic net loss per share for all periods presented herein because common equivalent shares from unexercised stock options, warrants and common shares expected to be issued under the Company’s employee stock purchase planequity compensation plans were anti-dilutive. The calculation of diluted earnings per share does not include 21,641 and 28,699 shares of potential common stock for the three months ended September 30, 2017March 31, 2023 and 2016 does not include 1,9962022, respectively.
Accumulated Other Comprehensive Income
Accumulated other comprehensive income is comprised of cumulative foreign currency translation adjustments and 1,291, respectively,unrealized gains and losses on available-for-sale investments and is disclosed as a separate component of such potential common shares,stockholders’ equity. Realized gain and loss amounts on available-for-sale investments are reclassified from accumulated other comprehensive income and recorded as their impact would be anti-dilutive. The calculationinterest and other income on the Consolidated Statements of diluted earnings per shareComprehensive Loss. There were no realized gains or losses reclassified out of accumulated other comprehensive income for the ninethree months ended September 30, 2017March 31, 2023 and 2016 does not include 2,519 and 1,190, respectively, of such potential common shares, as their impact would be anti-dilutive.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results could differ from those estimates.

2022.

Significant Customers and Other Risks

Significant Customers

All peramivir

The Company’s primary sources of revenue and cash flow are the sales (i.e.,of ORLADEYO in the United States and other global markets and, for 2022, sales of RAPIVAB RAPIACTA, and PERAMIFLU) are made by(peramivir injection) under the Company’s partnersprocurement contract with the Assistant Secretary for Preparedness and Response within HHS.
ORLADEYO is distributed through an arrangement with a single specialty pharmacy in the Company will be reliant onUnited States, which represents the substantial majority of the ORLADEYO net product sales. The specialty pharmacy subsequently sells ORLADEYO to its customers (pharmacy benefit managers, insurance companies, government programs and group purchasing organizations) and dispenses product to patients. The specialty pharmacy’s inability or unwillingness to continue these partners to generate sales and remit cash to satisfy receivables.

Other than royalty revenues,distribution activities could adversely impact the Company’s primary sourcebusiness, results of revenue that has an underlying cash flow stream is the reimbursement of galidesivir (formerly BCX4430) development expenses earned under cost-plus-fixed-fee contracts with BARDA/HHSoperations and NIAID/HHS. financial condition.

The Company relies on BARDA/HHS and NIAID/HHS to reimburse predominantly all of the development costs for its galidesivir program. Accordingly, reimbursement of these expenses represents a significant portion ofis distributing ORLADEYO in other global markets directly or through distributors, except in Japan where Torii, the Company’s collaborative and other research and development revenues. The completion (as withpartner, has the June 30, 2014 BARDA/HHS peramivir development contract) or termination of the NIAID/HHS and BARDA/HHS galidesivir contracts could negatively impact the Company’s future Consolidated Statements of Comprehensive Loss and Cash Flows. The Company recognizes royalty revenue from the net sales of RAPIACTA by Shionogi; however, the underlying cash flow from these royalty payments, except for Japanese government stockpiling sales, goes directlyexclusive right to pay the interest, and then the principal, on the Company’s non-recourse notes payable. Payment of the interest and the ultimate repayment of principal of these notes will be entirely funded by future royalty payments derived from net sales of RAPIACTA. commercialize ORLADEYO.
Further, the Company’s drug development activities are performed by a limited group of third partythird-party vendors. If any of these vendors were unable to perform theirits services, this could significantly impact the Company’s ability to complete its drug development activities.

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Risks from Third-Party Manufacturing and Distribution Concentration

The Company relies on a single source manufacturer for active pharmaceutical ingredient and finished drug product manufacturing of product candidates in development and on a single specialty pharmacy for distribution of approved drug product in the United States. Delays or disruption in the manufacture or distribution of any product could adversely impact the future procurement stockpiling of the Company’s commercial product, commercial revenue and product candidates.
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Credit Risk

Cash equivalents and investments are financial instruments whichthat potentially subject the Company to concentration of risk to the extent recorded on the Consolidated Balance Sheets. The Company deposits excess cash with major financial institutions in the United States. Balances may exceed the amount of insurance provided on such deposits. The Company believes it has established guidelines for investment of its excess cash relative to diversification and maturities that maintain safety and liquidity. To minimize the exposure due to adverse shifts in interest rates, the Company maintains a portfolio of investments with an average maturity of approximately 1812 months or less. Other than
The Company’s receivables from sales of ORLADEYO are primarily due from one customer, resulting in a concentration of credit risk. Sales of ORLADEYO from the Company to the specialty pharmacy only occur once an order of product salehas been received by the specialty pharmacy from one of its customers, which include pharmacy benefit managers, insurance companies, government programs and collaborative partner receivables discussed above, thegroup purchasing organizations.
The majority of the Company’s receivables from collaborations are due from the U.S. Government, for which there is no assumed credit risk.

Recent

Recently Adopted Accounting Pronouncements

In November 2016,

There have been no new accounting pronouncements adopted by the Company or new accounting pronouncements issued by the Financial Accounting Standards Board during the three months ended March 31, 2023, as compared to the recent accounting pronouncements described in Note 1 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, that the Company believes are of significance or potential significance to the Company.
Note 2 Revenue
The Company recorded the following revenues (in thousands):
Three Months Ended March 31,
20232022
ORLADEYO:
U.S.$60,849 $43,935 
Outside of U.S.7,565 5,769 
Total ORLADEYO68,414 49,704 
Other revenues364 219 
Total revenues$68,778 $49,923 
ORLADEYO revenues represent total revenues from product sales, collaborative revenues and royalties. Other revenues primarily relate to the Company’s galidesivir development contracts with BARDA/HHS and NIAID/HHS and product sales and royalties for peramivir injection (RAPIVAB/RAPIACTA/PERAMIFLU).

Note 3 Investments
The following tables summarize the fair value of the Company’s investments by type. The estimated fair values of the Company’s fixed income investments are classified as Level 2 in the fair value hierarchy as defined in U.S. GAAP. These valuations are based on observable direct and indirect inputs, primarily quoted prices of similar, but not identical,
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instruments in active markets or quoted prices for identical or similar instruments in markets that are not active. These fair values are obtained from independent pricing services which utilize Level 2 inputs.
March 31, 2023
Amortized
Cost
Accrued
Interest
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Obligations of U.S. Government and its agencies$242,246 $160 $69 $(585)$241,890 
Corporate debt securities3,362 13 — (21)3,354 
Certificates of deposit1,224 — (21)1,210 
Total investments$246,832 $180 $69 $(627)$246,454 
December 31, 2022
Amortized
Cost
Accrued
Interest
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Obligations of U.S. Government and its agencies$129,940 $427 $— $(996)$129,371 
Corporate debt securities6,093 37 — (38)6,092 
Certificates of deposit2,163 23 — (29)2,157 
Total investments$138,196 $487 $— $(1,063)$137,620 
The following table summarizes the scheduled maturity for the Company’s investments at March 31, 2023 and December 31, 2022:
March 31, 2023December 31, 2022
Maturing in one year or less$243,022 $119,543 
Maturing after one year through two years3,432 18,077 
Total investments$246,454 $137,620 

Note 4 Trade Receivables
Product Sales
Receivables from product sales are recorded for amounts due to the Company related to sales of ORLADEYO and RAPIVAB. At March 31, 2023 and December 31, 2022, receivables related to sales of ORLADEYO were $47,403 and $41,508, respectively. At March 31, 2023 and December 31, 2022, receivables related to sales of RAPIVAB were $145 and $823, respectively. No reserve or allowance amounts were recorded as of March 31, 2023 and December 31, 2022.
Collaborations
Receivables from collaborations were as follows (in thousands):
March 31, 2023
BilledUnbilledTotal
U.S. Department of Health and Human Services, net$286 $284 $570 
Royalty receivables from partners521 — 521 
Total receivables$807 $284 $1,091 
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December 31, 2022
BilledUnbilledTotal
U.S. Department of Health and Human Services, net$7,218 $284 $7,502 
Royalty receivables from partners741 — 741 
Other collaborations— 25 25 
Total receivables$7,959 $309 $8,268 
As of both March 31, 2023 and December 31, 2022, the Company maintained a reserve of $437 related to royalties associated with Green Cross.
Note 5 Inventory
At March 31, 2023 and December 31, 2022, the Company’s inventory primarily related to ORLADEYO. Additionally, inventory included RAPIVAB and peramivir, which is manufactured for the Company’s partners.
The Company’s inventories consisted of the following (in thousands):
March 31, 2023December 31, 2022
Raw materials$8,869 $8,906 
Work-in-process15,613 14,990 
Finished goods4,397 4,814 
Total inventory$28,879 $28,710 
Reserves(1,413)(1,177)
Total inventory, net$27,466 $27,533 
Note 6 Royalty Monetizations
ORLADEYO and Factor D Inhibitors
On December 7, 2020, the Company and RPI 2019 Intermediate Finance Trust (“FASB”RPI”) issued Accounting Standards Update 2016-18: Statemententered into a Purchase and Sale Agreement (the “2020 RPI Royalty Purchase Agreement”), pursuant to which the Company sold to RPI the right to receive certain royalty payments from the Company for a purchase price of Cash Flows (Topic 230): Restricted Cash$125,000 in cash (the “2020 RPI Royalty Sale”). Under the 2020 RPI Royalty Purchase Agreement, RPI is entitled to receive tiered, sales-based royalties on net product sales of ORLADEYO in the United States and certain key European markets (collectively, the “Key Territories”), and other markets where the Company sells ORLADEYO directly or through distributors (collectively, the “Direct Sales”) in an amount equal to: (i) 8.75% of aggregate annual net sales of ORLADEYO for annual net sales up to $350,000 and (ii) 2.75% of annual net sales for annual net sales between $350,000 and $550,000. No royalty payments are payable on annual Direct Sales over $550,000.
Under the 2020 RPI Royalty Purchase Agreement, RPI is also entitled to receive a tiered revenue share on ORLADEYO sublicense revenue or net sales by licensees outside of the Key Territories (the “Other Markets”) equal to: (i) 20% of the proceeds received by the Company for upfront license fees and development milestones for ORLADEYO in the Other Markets; (ii) 20% of proceeds received on annual net sales of up to $150,000 in the Other Markets; and (iii) 10% of proceeds received by the Company on annual net sales between $150,000 and $230,000 in the Other Markets. No royalty payments are payable on annual net sales above $230,000 in the Other Markets.
On November 19, 2021, the Company and RPI entered into (i) a Purchase and Sale Agreement (the “2021 RPI Royalty Purchase Agreement” and together with the 2020 RPI Royalty Purchase Agreement, the “RPI Royalty Purchase Agreements”), pursuant to which the Company sold to RPI the right to receive certain royalty payments from the Company for a purchase price of $150,000 in cash, and (ii) a Purchase and Sale Agreement with OCM IP Healthcare Holdings Limited, an affiliate of OMERS Capital Markets (“ASU 2016-18”OMERS”) (the “OMERS Royalty Purchase Agreement” and collectively with the RPI Royalty Purchase Agreements, the “Royalty Purchase Agreements”), pursuant to which the Company sold to OMERS the right to receive certain royalty payments from the Company for a purchase price of an additional $150,000 in cash.
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Under the 2021 RPI Royalty Purchase Agreement, RPI is entitled to receive tiered, sales-based royalties on Direct Sales in an amount equal to: (i) 0.75% of aggregate annual net sales of ORLADEYO for annual net sales up to $350,000 and (ii) 1.75% of annual net sales of ORLADEYO for annual net sales between $350,000 and $550,000. No royalty payments are payable on Direct Sales over $550,000. RPI is also entitled to receive a tiered revenue share on ORLADEYO sublicense revenue or net sales by licensees in the Other Markets in an amount equal to 3.0% of proceeds received by the Company on annual net sales of up to $150,000 in the Other Markets, and (iii) 2.0% of proceeds received by the Company on annual net sales between $150,000 and $230,000 in the Other Markets. No royalty payments are payable on annual net sales above $230,000 in the Other Markets.
Under the 2021 RPI Royalty Purchase Agreement, RPI is also entitled to receive tiered, sales-based royalties on net product sales of BCX10013 in an amount equal to: (i) 3.0% of worldwide aggregate annual net sales up to $1,500,000 and (ii) 2.0% of worldwide aggregate annual net sales between $1,500,000 and $3,000,000. No royalty payments are payable on annual net sales above $3,000,000. RPI is also entitled to receive tiered profit share amounts of up to 3.0% from certain other permitted sales in certain other markets.
The royalties payable under the 2021 RPI Royalty Purchase Agreement are in addition to the royalties payable to RPI under the 2020 RPI Royalty Purchase Agreement.
Under the OMERS Royalty Purchase Agreement, commencing with the calendar quarter beginning October 1, 2023, OMERS will be entitled to receive tiered, sales-based royalties on Direct Sales in an amount equal to: (i) 7.5% of aggregate annual net sales of ORLADEYO for annual net sales up to $350,000 and (ii) 6.0% of annual net sales of ORLADEYO for annual net sales between $350,000 and $550,000 (with no royalty payments payable on annual Direct Sales over $550,000) (the “Regime A Royalty Rate”). If annual Direct Sales for calendar year 2023 reach a specified amount set forth in the OMERS Royalty Purchase Agreement, then for each calendar quarter beginning on or after January 1, 2024, OMERS will be entitled to receive the Regime A Royalty Rate. If annual Direct Sales for calendar year 2023 are less than the specified amount, OMERS will be entitled to receive tiered, sales-based royalties on Direct Sales in an amount equal to: (i) 10.0% of aggregate annual net sales of ORLADEYO for annual net sales up to $350,000 and (ii) 3.0% of annual net sales of ORLADEYO for annual net sales between $350,000 and $550,000 (with no royalty payments payable on annual Direct Sales over $550,000) (the “Regime B Royalty Rate”).
Under the OMERS Royalty Purchase Agreement, OMERS is also entitled to receive a tiered revenue share on ORLADEYO sublicense revenue or net sales by licensees in the Other Markets in an amount equal to: (i) 20.0% of the proceeds received by the Company for upfront license fees and development milestones for ORLADEYO in the Other Markets, (ii) 20.0% of proceeds received by the Company on annual net sales of up to $150,000 in the Other Markets, and (iii) 10.0% of proceeds received by the Company on annual net sales between $150,000 and $230,000 in the Other Markets. No royalty payments are payable on annual net sales above $230,000 in the Other Markets. OMERS is also entitled to receive profit share amounts of up to 10% from certain other permitted sales in certain other markets.
Under the 2020 RPI Royalty Purchase Agreement, the Company is required to make royalty payments of amounts owed to RPI each calendar quarter following the first commercial sale of ORLADEYO in any country. Under the 2021 RPI Royalty Purchase Agreement, the Company is required to make payments to RPI in respect of net sales or sublicense revenue in each calendar quarter from and after October 1, 2021. Under the OMERS Royalty Purchase Agreement, the Company will be required to make payments to OMERS is respect of net sales or sublicense revenue in each calendar quarter from and after October 1, 2023. OMERS will no longer be entitled to receive any payments on the date in which aggregate payments actually received by OMERS equals either 142.5% or 155.0% of the $150,000 purchase price, depending on sales levels in calendar year 2023.
The transactions contemplated by each of the Royalty Purchase Agreements are referred to herein as the “Royalty Sales”.
Under the Royalty Purchase Agreements, the Company has agreed to specified affirmative and negative covenants, including covenants regarding periodic reporting of information by the Company to RPI and OMERS, third-party audits of royalties paid under the Royalty Purchase Agreements, and restrictions on the ability of the Company or any of its subsidiaries to incur indebtedness other than certain royalty sales and as was permitted to be incurred under the terms of the Athyrium Credit Agreement (as defined in Note 7 herein) through its payoff and termination on April 17, 2023 or, subsequent to that date, the Company’s Loan Agreement (the “Pharmakon Loan Agreement”) with BioPharma Credit Investments V (Master) LP and BPCR Limited Partnership, as lenders, and BioPharma Credit PLC, as collateral agent for the lenders, as applicable. Refer to Note 7 and Note 12, respectively, for further details on the Athyrium Credit Agreement and the Pharmakon Loan Agreement. The restrictions under the Royalty Purchase Agreements on the ability of the
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Company or any of its subsidiaries to incur indebtedness are eliminated after the achievement of certain specified milestones in the Royalty Purchase Agreements.
The cash consideration obtained pursuant to the Royalty Purchase Agreements is recorded in “Royalty financing obligations” on the Company’s Consolidated Balance Sheets. The fair value for the royalty financing obligations at the time of the transactions was based on the Company’s estimates of future royalties expected to be paid to the counterparty over the life of the arrangement. The Company subsequently records the obligations at its carrying value using the effective interest method. In order to amortize the royalty financing obligations, the Company utilizes the prospective method to estimate the future royalties to be paid by the Company to the counterparty over the life of the arrangement. Under the prospective method, a new effective interest rate is determined based on the revised estimate of remaining cash flows. The new rate is the discount rate that equates the present value of the revised estimate of remaining cash flows with the carrying amount of the debt, and it will be used to recognize interest expense for the remaining periods. The Company periodically assesses the amount and timing of expected royalty payments using a combination of internal projections and forecasts from external sources. The estimates of future net product sales (and resulting royalty payments) are based on key assumptions including population, penetration, probability of success, and sales price, among others. To the extent such payments are greater or less than the Company’s initial estimates or the timing of such payments is materially different than its original estimates, the Company will prospectively adjust the amortization of the royalty financing obligations and the effective interest rate.
During the three months ended March 31, 2023, there was no significant impact on the amount and timing of expected royalties to be made under the RPI Royalty Purchase Agreements based on the Company’s latest forecasts related to its R&D programs and ORLADEYO sales.
The following table shows the activity within the Royalty financing obligations account (in thousands) as well as the effective interest rate as of March 31, 2023:
2020 RPI
Royalty
Agreement
2021 RPI
Royalty
Agreement
OMERS
Royalty
Agreement
Total
Balance as of December 31, 2022$164,981 $173,651 $163,023 $501,655 
Deferred financing costs— — — — 
Non-cash Interest expense on Royalty financing obligations9,309 5,680 4,329 19,318 
Royalty revenues paid and payable(6,038)(524)— (6,562)
Balance as of March 31, 2023$168,252 $178,807 $167,352 $514,411 
Effective interest rate22.4 %13.1 %10.6 %
The Royalty financing obligations liabilities and the associated deferred issuance costs are amortized using the effective interest method over the term of the arrangement, in accordance with the respective guidance.
Concurrent with entering into the 2021 RPI Royalty Purchase Agreement, the Company and RPI entered into a Common Stock Purchase Agreement (the “Common Stock Purchase Agreement”), pursuant to which the Company sold common stock to RPI for a premium of $4,269. This premium has been deferred and is being amortized through interest expense using the effective interest method over the term of the applicable arrangement. Refer to Note 9 for further details on the common stock sale premium.
Note 7 Debt
Credit Agreement
On December 7, 2020, the Company entered into a $200,000 Credit Agreement (the “Athyrium Credit Agreement”) with Athyrium Opportunities III Co-Invest 1 LP (“Athyrium”), as lender and as administrative agent for the lenders. Certain of the Company’s direct and indirect subsidiaries were guarantors to the Athyrium Credit Agreement. The Athyrium Credit Agreement provided for an initial term loan in the principal amount of $125,000 (the “Term A Loan”), which was received by the Company on December 7, 2020 and is recorded in “Secured term loan” on the Company’s balance sheet as of March 31, 2023. The Company used a portion of the proceeds from the Term A Loan to repay $43,298 of outstanding indebtedness, including accrued interest, under its prior credit facility with MidCap Financial Trust.
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The Athyrium Credit Agreement also provided for two additional term loans, at the Company’s option, in the respective principal amounts of $25,000 (the “Term B Loan”) and $50,000 (the “Term C Loan” and, collectively with the Term A Loan and the Term B Loan, the “Athyrium Term Loans”). Having achieved all required revenue-based milestones, the Company exercised its option to draw upon the additional funding available under the Athyrium Credit Agreement, borrowing the principal amounts of $25,000 under the Term B Loan and $50,000 under the Term C Loan. Both the Term B Loan and the Term C Loan were funded on July 29, 2022 in the aggregate principal amount of $75,000. The Term B Loan and the Term C Loan were subject to all the provisions under the Athyrium Credit Agreement.
On November 19, 2021, the Company entered into an amendment to the Athyrium Credit Agreement to, among other things, (i) permit the Company to enter into the 2021 RPI Royalty Purchase Agreement, the OMERS Royalty Purchase Agreement, and the other definitive documentation related thereto and to perform its obligations thereunder; (ii) require the Company to pay to Athyrium, for the account of the lenders, a make-whole premium plus certain fees set forth in the Athyrium Credit Agreement in the event that the Company prepaid or repaid, or was required to prepay or repay, voluntarily or pursuant to mandatory prepayment obligations under the Athyrium Credit Agreement (e.g., with the proceeds of certain asset sales, certain ORLADEYO out-licensing or royalty monetization transactions (excluding the Royalty Sales), extraordinary receipts, debt issuances, or upon a change of control of the Company and specified other events, subject to certain exceptions), all of the then-outstanding Athyrium Term Loans, in each case, subject to certain exceptions set forth in the Athyrium Credit Agreement.
The Athyrium Credit Agreement provided for quarterly interest-only payments until the maturity date, with the unpaid principal amount of the outstanding Athyrium Term Loans due and payable on the maturity date. For each of the first eight full fiscal quarters following December 7, 2020, the Company had the option to make the applicable interest payment in-kind (a “PIK Interest Payment”) by capitalizing the entire amount of interest accrued during the applicable interest period with the unpaid original principal amount outstanding on the last day of such period. The Athyrium Term Loans accrued interest at a rate equal to the three-month LIBOR rate, which was no less than 1.75% and no more than 3.50% (“LIBOR”), plus 8.25%, or for each interest period in which a PIK Interest Payment was made, LIBOR plus 10.25%. The new standard requiresquarter ended December 31, 2022 was the last period eligible for the PIK Interest Payment designation.
The Athyrium Term Loans accrued interest at an effective interest rate of 11.88% for the three months ended March 31, 2023 compared to 12.17% for the three months ended March 31, 2022.
The three-month LIBOR was 4.73% as of December 28, 2022, the LIBOR measurement date for the three-month interest period beginning January 1, 2023. As the LIBOR rate exceeded the LIBOR cap of 3.50%, the 3.50% cap plus 8.25%, or 11.75%, was used to record interest expense for the three-month interest period ended March 31, 2023.
Subject to certain exceptions, the Athyrium Credit Agreement would have required the Company to make mandatory prepayments of the Athyrium Term Loans with the proceeds of certain asset sales, certain ORLADEYO out-licensing or royalty monetization transactions (excluding the Royalty Sales), extraordinary receipts, debt issuances, or upon a change of control of the Company and specified other events. The Company could have made voluntary prepayments in whole or in part. Prepayments were subject to a premium equal to, (i) with respect to any voluntary prepayment and certain mandatory prepayments paid on or prior to the second anniversary of the applicable Term Loan borrowing date, the amount, if any, by which (a) the sum of (1) 102.00% of the principal amount of the Term Loan being prepaid plus (2) the present value of all interest that would have accrued on the principal amount of the Term Loan being prepaid through and including the second anniversary of the date of the borrowing of such Term Loan, plus 0.50%, exceeds (b) the principal amount of the Term Loan being prepaid; (ii) with respect to any prepayment made between the second and third anniversaries of the applicable Term Loan borrowing date, 2.00% of the principal amount of the Term Loan being prepaid; (iii) with respect to any prepayment made between the third and fourth anniversaries of the applicable Term Loan borrowing date, 1.00% of the principal amount of the Term Loan being prepaid; and (iv) with respect to any prepayment made after the fourth anniversary of the applicable Term Loan borrowing date, 0.00% of the principal amount of the Term Loan being prepaid. Upon the prepayment or repayment, including at maturity, of all or any of the Athyrium Term Loans, the Company was obligated to pay an exit fee in an amount equal to 2.00% of the principal amount of the Athyrium Term Loans prepaid or repaid. In addition, each Term Loan was subject to a statement1.00% commitment fee at its respective borrowing date.
The Athyrium Credit Agreement also contained representations and warranties and affirmative and negative covenants customary for financings of cash flows explainthis type, as well as customary events of default. Certain of the customary negative covenants limited the ability of the Company and certain of its subsidiaries to, among other things, grant liens, make investments, incur additional indebtedness, engage in mergers, acquisitions, and similar transactions, dispose of assets, license certain property, distribute dividends, make certain restricted payments, change during the periodnature of the Company’s
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business, engage in transactions with affiliates and insiders, prepay other indebtedness, or engage in sale and leaseback transactions, subject to certain exceptions. Additionally, as of the last day of each fiscal quarter (a “Test Date”), beginning with the first Test Date occurring immediately after the Term C Loan was drawn, the Company could not permit consolidated net revenues from ORLADEYO sales in the totalUnited States for the four-fiscal quarter period ending on such Test Date to be less than the specified amounts set forth in the Athyrium Credit Agreement (collectively, the “Revenue Tests”). If the Company failed to satisfy the Revenue Tests as of cash, cash equivalentsany Test Date, it would have had a one-time right (the “Cure Right”) to repay in full the entire amount of the Term C Loan outstanding at such time together with all accrued and unpaid interest thereon plus the prepayment premium, exit fee, and any other fees or amounts generally describedpayable under the Athyrium Credit Agreement at such time. In addition, the Athyrium Credit Agreement contained a minimum liquidity covenant requiring the Company to maintain at all times, as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included withapplicable, at least $15,000 of unrestricted cash and cash equivalents when reconcilingif only the beginning-of-period and end-of-period total amounts shown on the statementTerm A Loan had been drawn; at least $20,000 of unrestricted cash flows. The standard is effective for annual periods beginning after December 15, 2017, and interim periods within those annual reporting periods. Early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements.

In August 2016, the FASB issued Accounting Standards Update No. 2016-15: Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). The amendments in this update clarify how entities should classify certain cash receipts and cash payments onequivalents if the Consolidated StatementsTerm B Loan had been drawn but the Term C Loan had not been drawn; and at least $15,000 (or, if the Cure Right has been exercised, $20,000) of Cash Flows. The new guidance also clarifies how the predominance principle should be applied whenunrestricted cash receipts and cash paymentsequivalents if the Term C Loan had been drawn, subject to certain exceptions.

A failure to comply with the covenants in the Athyrium Credit Agreement could have aspects of more than one class of cash flows. ASU 2016-15 will be effective for annual periods beginning after December 15, 2017, including interim periods within those annual reporting periods, but early adoption is permitted. The Company is currently evaluatingpermitted the impact of this update on its consolidated financial statements.

In March 2016,lenders under the FASB issued Accounting Standards Update No. 2016-09: Compensation - Stock Compensation (Topic 718): ImprovementsAthyrium Credit Agreement to Employee Share-Based Payment Accounting (“ASU 2016-09”). The amendments in this update simplify several aspects ofdeclare the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements,outstanding principal as well as classificationaccrued interest and fees, to be immediately due and payable.

The Company’s obligations under the Athyrium Credit Agreement were secured by a security interest in, subject to certain exceptions, substantially all of the Company’s assets.
As of March 31, 2023, the Company had total borrowings of $200,000 under the Athyrium Credit Agreement. Quarterly interest payments under the Athyrium Credit Agreement for the three months ended March 31, 2023 and 2022 totaled $7,142 and $4,321, respectively. From Term Loan inception through December 31, 2022, the quarterly interest payments were designated and accounted for as PIK Interest Payments and added to the outstanding principal balance of the borrowing. The quarter ended December 31, 2022 was the last period eligible for the PIK Interest Payment designation. As of March 31, 2023, borrowings, including the PIK Interest Payments, totaled $240,452. The principal balance of the borrowings, including PIK amounts, accrued interest at an effective rate of 11.88% for the three months ended March 31, 2023. The fair value of the debt approximates its carrying value based on prevailing interest rates as of the balance sheet date and is considered as Level 2 in the statementfair value hierarchy.
As of cash flows. ASU 2016-09 eliminatesMarch 31, 2023, deferred debt fees and issuance costs associated with all Athyrium Term Loans under the requirement that excess tax benefits be realizedAthyrium Credit Agreement totaled $11,930 and are being amortized as a reduction in current taxes payable beforeinterest expense on an effective interest rate method over the associated tax benefit can be recognized as an increase in paid in capital. Under ASU 2016-09, these previously unrecognized deferred tax assets were recognized on a modified retrospective basis as of January 1, 2017, the startremaining term of the yearAthyrium Term Loans. Deferred financing amortization of $898 and $(167), was recognized for the three months ended March 31, 2023 and 2022, respectively. When utilizing the effective interest method, in periods in which PIK interest was designated and added to the outstanding principal balance of the borrowing, the amortization of the deferred debt fees and issuance costs was accretive.
On April 17, 2023, the Company adopted ASU 2016-09. The U.S. federalentered into the Pharmakon Loan Agreement and state net operating losses and credits recognized asused the proceeds of January 1, 2017 have been offset by a full valuation allowance. As a result, there is no cumulative-effect adjustmentan initial loan thereunder to, retained earnings as of September 30, 2017. The Company elected not to change its policy on accounting for forfeitures and continues to estimate the total number of awards for which the requisite service period will not be rendered. The Company adopted ASU 2016-09 as of January 1, 2017. Adoption of ASU 2016-09 did not have a material impact on the Company’s consolidated financial statements.

In February 2016, the FASB issued Accounting Standards Update No. 2016-02: Leases (Topic 842) (“ASU 2016-02”). The amendments in this update require lessees, among other things, to recognizerepay the outstanding indebtedness under the Athyrium Credit Agreement. See “Note 12—Subsequent Events” for additional information about the Pharmakon Loan Agreement.

Note 8 Lease Obligations
The Company leases certain assets under operating leases, which primarily consisted of real estate leases, laboratory equipment leases and office equipment leases as of March 31, 2023. Renewal options for the Company's leases range from 1 to 5 years in length and begin from 2024 through 2027.
Aggregate lease expense under operating leases was as follows (in thousands):
Three Months Ended March 31,
20232022
Aggregate lease expense$727 $594 
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Other supplemental information related to leases was as follows:
As of March 31, 2023As of December 31, 2022
Weighted average remaining lease term7.8 years8.1 years
Weighted average discount rate10.8%11.0%
All of the Company’s leases qualify as operating leases. The following table summarizes the presentation in the Consolidated Balance Sheets of the Company’s operating leases:
Balance Sheet LocationAs of March 31, 2023As of December 31, 2022
Assets:
Operating lease assets, netOther Assets$7,046 $6,806 
Liabilities:
Current operating lease liabilitiesLease financing obligation – current liabilities$2,491 $2,369 
Non-current operating lease liabilitiesLease financing obligation – long-term liabilities5,934 5,804 
Total operating lease liabilities$8,425 $8,173 
Operating lease assets are recorded net of accumulated amortization of $4,878 and $4,349 as of March 31, 2023 and December 31, 2022, respectively.
Cash paid for amounts included in the measurement of lease liabilities on the balance sheet for all leases with terms greater than 12 months. This update also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 will be effectivewas $705 and $574 for the three months ended March 31, 2023, and 2022, respectively.
Maturities of operating lease liabilities as of March 31, 2023, are as follows (in thousands):
2023 (remaining)$2,137 
20242,175 
20251,711 
2026824 
2027613 
Thereafter6,161 
Total lease payments13,621 
Less imputed interest(5,196)
Total$8,425 
Note 9 Stockholders Equity
Sales of Common Stock
On March 1, 2021, the Company in fiscal year 2019, but early adoption is permitted. Thefiled an automatic shelf registration statement on Form S-3 with the SEC. This shelf registration statement became effective automatically upon filing and allows the Company is currently evaluating the impactto sell an indeterminate number of this updatesecurities, including common stock, preferred stock, depositary shares, purchase contracts, warrants, debt securities, and units, from time to time at prices and on its consolidated financial statements.

In January 2016, the FASB issued Accounting Standards Update No. 2016-01: Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). The amendments in this update address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. In particular, the amendments in this update supersede, for public business entities, the requirement to disclose the methods and significant assumptions used in calculating the fair value of financial instruments requiredterms to be disclosed for financial instruments measureddetermined at amortized cost on the balance sheet. ASU 2016-01 will be effective fortime of sale.

On November 19, 2021, concurrent with the Company in fiscal year 2018, but early adoption is permitted. The Company does not expect this standard to have a material impact on its consolidated financial statements.

In July 2015,entering into the FASB issued Accounting Standards Update No. 2015-11: Inventory (Topic 330): Simplifying the Measurement of Inventory (“ASU 2015-11”), which changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. ASU 2015-11 defines net realizable value as the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The update does not apply to inventory that is measured using last-in, first-out or the retail inventory method. The update applies to all other inventory, which includes inventory that is measured using first-in, first-out or average cost methods. The amendments in ASU 2015-11 are effective for2021 RPI Royalty Purchase Agreement, the Company for fiscal years, and RPI entered into the interim periods within those years, beginning after December 15, 2016. The Company adopted ASU 2015-11 as of January 1, 2017. Adoption did not have a material impact on its consolidated financial statements.

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In May 2014, the FASB issued Standards Update No. 2014-09: Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”), which provides a single, comprehensive revenue recognition model for all contracts with customers. The core principal of this ASU is that an entity should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the considerationCommon Stock Purchase Agreement, pursuant to which the entity expectsCompany issued 3,846 shares of the Company’s common stock to be entitled in exchangeRPI for those goods or services. ASU 2014-09 also requires additional disclosure aboutan aggregate purchase price of $50,000, at a price of $13.00 per share, calculated based on the nature, amount, timing and uncertainty20-day volume weighted average price. The $13.00 per share price represented a premium of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In July 2015,$1.11 over the FASB finalized a one year delay inclosing price of $11.89 of the effective date of this standard, which will now be effective January 1, 2018; however, early adoption is permitted any time afterCompany’s common stock on November 17, 2021, the original effective date, January 1, 2017. Companies can transitionlast trading day prior to the new standard underexecution of the full retrospective method orCommon Stock Purchase Agreement. The premium of $4,269 paid by RPI on the modified retrospective method. The Company will adoptpurchase of the standard effective January 1, 2018Company’s common stock has been deferred and expects to utilizeis being amortized as a component of interest expense of the modified retrospective methodology. The Company is continuing to evaluate the effect that the standard will have on its consolidated financial statements and related disclosures.

2021 RPI royalty financing obligation.

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Note 2 10 Stock-Based Compensation

As of September 30, 2017,March 31, 2023, the Company had twothree stock-based employee compensation plans,plans: the Amended and Restated Stock Incentive Plan (“Incentive Plan”), the Amended and Restated Inducement Equity Incentive Plan (“Inducement Plan”) and the Amended and Restated Employee Stock Purchase Plan (“ESPP”). The Incentive Plan was most recently amended and restated inon April 201724, 2023, subject to stockholder approval at the Company’s annual meeting of stockholders to be held on June 13, 2023. The Inducement Plan was most recently amended and restated by the Company’s Board of Directors on August 26, 2022. The ESPP was most recently amended and restated on April 1, 2021 and approved by the Company’s stockholders inon May 2017. 25, 2021.
The ESPP was amended and restated in March 2014 and approved byCompany recorded the Company’s stockholders in May 2014. Stock-basedfollowing stock-based compensation expense of $10,307 ($10,107 of expense related to the Incentive Plan and $200 of expense related to the ESPP) was recognized during the first nine months of 2017, while $6,478 ($6,331 of expense related to the Incentive Plan and $147 of expense related to the ESPP) was recognized during the first nine months of 2016.

(in thousands):

Three Months Ended March 31,
20232022
Incentive Plan$11,061 $8,078 
Inducement Plan2,475 1,225 
ESPP471 298 
Stock-based compensation expense$14,007 $9,601 
There was approximately $16,282$139,166 of total unrecognized compensation costexpense related to non-vested stock option awards and restricted stock unit awards granted by the Company as of September 30, 2017. That cost isMarch 31, 2023. As of March 31, 2023, the Company expected to be recognizedrecognize that expense as follows: $2,264$38,098 during the remainder of 2017, $6,7452023, $46,800 in 2018, $4,5272024, $35,358 in 2019, $2,3952025, $18,689 in 20202026 and $351$221 in 2021.2027. In addition, the Company has outstanding performance-based stock options and restricted stock unit awards for which no compensation expense is recognized until “performance” has occurred and the award vests. At the time of vesting, compensation expense will be recognized. During the third quarter of 2017, the Company achieved a performance metric under a performance-based option award resulting in 404 options vesting and $3,193 compensation expense recorded as a result of this achievement.

Stock Incentive Plan

The Company grants stock option awards, restricted stock and restricted stock unit awardsunits to its employees, directors, and consultants under the Incentive Plan. Under the Incentive Plan, stock option awards are granted with an exercise price equal to the market price of the Company’s common stock at the date of grant. Stock option awards and restricted stock units granted to employees generally vest 25% each year until fully vested after four years.
In August 2013 and December 2014, the Company issued 1,032 and 1,250 performance-based stock options, respectively.options. These awards vest upon successful completion of specific development milestones. As of September 30, 2017, 75%March 31, 2023, 85% of these grants have vested.
In January 2022, the Company issued 221 performance-based restricted stock unit awards. 21 of the August 2013 grants have vested based upon achievement of three milestones: (1) successful completionawards met the performance objectives in 2022 and became eligible for vesting at 50% on the first anniversary of the OPuS-1 clinical trial, for which vesting occurred ingrant date and 25% on each of the second quarter of 2014, (2) FDA approval of RAPIVAB, for which vesting occurred in the fourth quarter of 2014, and (3) initiation of a Phase 1 clinical trial to evaluate the safety, pharmacokinetics and pharmacodynamics of orally-administered BCX7353 in healthy volunteers, for which vesting occurred in the second quarter of 2015. As of September 30, 2017, 30%third anniversaries of the December 2014 grants havegrant date, until fully vested based upon achievement of successful completion of an HAE patient trial with a 2nd generation compound, for which vesting occurred in August 2017. Thus, as of September 30, 2017, 25% of the August 2013 performance-based grantsafter three years. The remaining awards were cancelled.
Stock option awards and 70% of the December 2014 performance-based grants remain unvested and no compensation expense has been recognized for these portions of the previously issued performance-based grants. Stock optionrestricted stock unit awards granted to non-employee directors of the Company generally vest monthly over one year. Stock option awards granted to new non-employee directors when they first join the Company’s Board of Directors generally vest, subject to the terms of the Incentive Plan, in 36 equal monthly installments over a three-year period measured from the grant date. All stock option awards have contractual terms of 5 to 10 years. Restricted stock unit awards granted to new non-employee directors when they first join the Company’s Board of Directors generally vest, subject to the terms of the Incentive Plan, in three equal annual installments beginning on the first anniversary of the grant date. The vesting and exercise provisions of all awards granted under the Incentive Plan are subject to acceleration in the event of certain stockholder-approved transactions, or upon the occurrence of a change in control as defined in the Incentive Plan.

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22


Related activity under the Incentive Plan is as follows:

 Awards
Available
 Options
Outstanding
 Weighted
Average
Exercise
Price
Balance December 31, 2016  2,273   12,095  $6.55 
Plan amendment  1,000       
Awards
Available
Options
Outstanding
Weighted
Average
Exercise
Price
Balance December 31, 2022Balance December 31, 20224,206 31,179 $8.56 
Restricted stock unit awards granted  (16)      Restricted stock unit awards granted(146)— — 
Restricted stock unit awards cancelled  3       Restricted stock unit awards cancelled313 — — 
Stock option awards granted  (2,591)  2,591   5.49 Stock option awards granted(215)215 10.55 
Stock option awards exercised     (422)  3.49 Stock option awards exercised— (529)5.52 
Stock option awards cancelled  912   (912)  10.22 Stock option awards cancelled437 (437)10.32 
            
Balance September 30, 2017  1,581   13,352  $6.19 
Balance March 31, 2023Balance March 31, 20234,595 30,428 $8.60 

For stock option awards granted under the Incentive Plan during the first ninethree months of 20172023 and 2016,2022, the fair value was estimated on the date of grant using a Black-Scholes option pricing model and the assumptions noted in the table following the next subsection. The weighted average grant date fair value of these awards granted during the first three months of 2023 and 2022 was $7.47 and $11.48, respectively. The fair value of the stock option awards is amortized to expense over the vesting periods using a straight-line expense attribution method. For restricted stock unit awards granted under the Incentive Plan, the fair value of the awards was determined based on the market value of the Company’s shares on the grant date. The weighted average grant date fair value of these awards granted during the first three months of 2023 and 2022 was $10.32 and $15.49, respectively. The fair value of the restricted stock unit awards is amortized to expense over the vesting periods using a straight-line expense attribution method.
Inducement Equity Incentive Plan
The Company has the ability to grant stock option and restricted stock unit awards to newly-hired employees as inducements material to each employee entering employment with the Company. Awards granted to newly hired employees generally vest 25% each year until fully vested after four years and are subject to the terms and conditions of the Inducement Plan. Each stock option has a term of 10 years. The vesting and exercise provisions of all awards granted under the Inducement Plan are subject to acceleration in the event of certain stockholder-approved transactions, or upon the occurrence of a change in control as defined in the Inducement Plan.
Related activity under the Inducement Plan is as follows:
Awards
Available
Options
Outstanding
Weighted
Average
Exercise
Price
Balance December 31, 2022947 5,341 $8.80 
Restricted stock unit awards granted(193)— — 
Restricted stock unit awards cancelled21 — — 
Stock option awards granted(522)522 9.66 
Stock option awards exercised— (173)3.36 
Stock option awards cancelled260 (260)8.62 
Balance March 31, 2023513 5,430 $9.06 
For stock option awards granted under the Inducement Plan during the first three months of 2023 and 2022, the fair value was estimated on the date of grant using a Black-Scholes option pricing model and the assumptions noted in the table below. The weighted average grant date fair value per share of thethese awards granted during the first ninethree months of 20172023 and 20162022 was $3.74$6.85 and $2.17,$11.14, respectively. The fair value of the stock option awards is amortized to expense over the vesting periods using a straight-line expense attribution method. For restricted stock unit awards granted under the Inducement Plan, the fair value of the awards was determined based on the market value of the Company’s shares on the grant date. The weighted average grant date fair value of these awards granted during the first three months of 2023 and 2022 was
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$9.64 and $16.27, respectively. The fair value of the restricted stock unit awards is amortized to expense over the vesting periods using a straight-line expense attribution method.
The following table summarizes the key assumptions used by the Company to value the stock option awards granted under all plans during the first ninethree months of 20172023 and 2016.2022, respectively. The expected life is based on the average of the assumption that all outstanding stock option awards will be exercised at full vesting and the assumption that all outstanding stock option awards will be exercised at the midpoint of the current date (if already vested) or at full vesting (if not yet vested) and the full contractual term. The expected volatility represents the historical volatility on the Company’s publicly tradedpublicly-traded common stock. The Company has assumed no expected dividend yield, as dividends have never been paid to stock or option holders and will not be paid for the foreseeable future. The weighted average risk-free interest rate is the implied yield currently available on zero-coupon government issues with a remaining term equal to the expected term.

Weighted Average Assumptions for Stock Option Awards Granted to

Employees and Directors under the Incentive Plan

and Inducement Plans
 2017 201620232022
Expected Life in Years  5.5   5.5 Expected Life in Years5.55.5
Expected Volatility  82.0%  82.0%Expected Volatility84.2 %84.1 %
Expected Dividend Yield  0.0%  0.0%Expected Dividend Yield0.0 %0.0 %
Risk-Free Interest Rate  1.9%  1.4%Risk-Free Interest Rate3.7 %1.9 %

Employee Stock Purchase Plan (“ESPP”)

The Company has reserved a total of 1,4757,975 shares of common stock to be purchased under the ESPP, of which 3305,617 shares remain available for purchase at September 30, 2017.as of March 31, 2023. Eligible employees may authorize up to 15% of their salary to purchase common stock at the lower of 85% of the beginning or 85% of the ending price during six-month purchase intervals. No more than 3three thousand shares may be purchased by any one employee at the six-month purchase dates, and no employee may purchase stock having a fair market value at the commencement date of $25 or more in any one calendar year. TheDuring the three months ended March 31, 2023, and 2022, the Company issued 91176 and 115 shares during the first nine months of 2017 under the ESPP.ESPP, respectively. Compensation expense for shares purchased under the ESPP related to the purchase discount and the “look-back” option were determined using a Black-Scholes option pricing model.

Note 3 11 Collaborative and Other Research and Development Contracts

U.S. Department of Health and Human Services (“BARDA/HHS”)Relationships

ORLADEYO
Torii Pharmaceutical Co., Ltd.
On March 31, 2015,November 5, 2019, the Company announced that BARDA/HHS had awardedentered into a Commercialization and License Agreement with Torii (the “Torii Agreement”), granting Torii the exclusive right to commercialize ORLADEYO for the prevention of HAE attacks in Japan.
Under the Torii Agreement, the Company a contract for the continued developmentreceived an upfront, non-refundable payment of galidesivir as a potential treatment for diseases caused by RNA pathogens, including filoviruses. This BARDA/HHS contract includes a base contract of $16,265 to support galidesivir drug manufacturing, as well as $22,855 in additional development options that can be exercised by the government, bringing the potential value$22,000. The Japanese National Health Insurance System’s (“NHI”) approval of the contractaddition of ORLADEYO to $39,120. As of September 30, 2017,the NHI drug price list in April 2021 triggered a total of $20,574 has been awarded under exercised options within this contract.

National Institute of Allergy and Infectious Diseases (“NIAID/HHS”). In September 2013, NIAID/HHS contracted with$15,000 milestone payment from Torii to the Company, forwhich was received in May 2021.

In addition, under the development of galidesivir as a treatment for Marburg virus disease. NIAID/HHS, part of the National Institutes of Health, made an initial award of $5,000 to the Company. The goals of this contract, including the amendments thereto, are to file IND applications for intravenous (“i.v.”) and intramuscular (“i.m.”) galidesivir for the treatment of Marburg virus disease and other hemorrhagic fever virus diseases, including Ebola virus disease, and to conduct an initial Phase 1 human clinical trial. As of September 30, 2017, the total NIAID/HHS contract amount to advance the program through the completion of the Phase 1 clinical program is $39,477. As of September 30, 2017, all options have been exercised under this contract.

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The contracts with BARDA/HHS and NIAID/HHS are cost-plus-fixed-fee contracts. That is,Torii Agreement, the Company is entitled to receive reimbursement for all costs incurredtiered royalty payments, ranging from 20% to 40% of annual net sales of ORLADEYO in accordance withJapan during each calendar year. Torii’s royalty payment obligations are subject to customary reductions in certain circumstances, but may not be reduced by more than 50% of the contract provisionsamount that are relatedotherwise would have been payable to the developmentCompany in the applicable calendar quarter. Torii’s royalty payment obligations commenced upon the first commercial sale of galidesivir plus a fixed fee, or profit. BARDA/HHSORLADEYO in Japan and NIAID/HHS will make periodic assessmentsexpire upon the later of progress and(i) the continuationtenth anniversary of the contract is based ondate of first commercial sale of ORLADEYO in Japan, (ii) the expiration of the Company’s performance,patents covering ORLADEYO, and (iii) the timeliness and qualityexpiration of deliverables, and other factors.regulatory exclusivity for ORLADEYO in Japan. The government has rights under certain contract clauses to terminate these contracts. These contracts are terminable by the government at any time for breach or without cause.

Seqirus UK Limited (“SUL”). On June 16, 2015, the Company and Seqirus UK Limited (“SUL”), a limited company organized under the laws of the United Kingdom and a subsidiary of CSL Limited, a company organized under the laws of Australia, entered into a License Agreement (the “SUL Agreement”) granting SUL and its affiliates worldwide rights to develop, manufacture and commercialize RAPIVAB (peramivir injection) for the treatment of influenza except for the rights to conduct such activities in Israel, Japan, Korea and Taiwan (the permitted geographies together constituting the “Territory”). Peramivir is an intravenous treatment for acute uncomplicated influenza and is currently approved for use in the United States, Canada, Japan, Taiwan and Korea. Peramivir is the first and only intravenous influenza treatment in the world and was approved by the FDA in December 2014 for the treatment of acute uncomplicated influenza in patients 18 years and older who have been symptomatic for no more than two days. The Company retains all rights and associated economics to procure pandemic stockpiling orders for RAPIVAB from the U.S. Government, while SUL has the right to pursue government stockpiling outside the U.S.

Pursuant to the SUL Agreement, RAPIVAB is commercialized by CSL's subsidiary, SUL, which specializes in influenza prevention through the supply of seasonal and pandemic vaccine to global markets. SUL manufactures, commercializes and exercises decision-making authority with respect to the commercialization of RAPIVAB within the Territory and is responsible for all related costs, including sales and promotion.

Under the terms of the SUL Agreement, the Company is responsible for fulfilling all post-marketing commitments in connectionsupplying Torii with the FDA's approvalits required amounts of ORLADEYO. The activities of the NDA, and upon fulfillment will transfer ownership of and financial responsibility forparties pursuant to the NDA to SUL. Pursuant to potential rights to sell RAPIVAB in the EU, the Company is also responsible for regulatory filings and interactions with the European Medicines Agency ("EMA") until marketing approval for RAPIVAB is obtained and assigned to SUL. In accordance with the SULTorii Agreement the Company and SUL formedare overseen by a joint steering committee, composed of an equal number of representatives from each party to oversee, review and coordinate the conductdevelopment and progress of the commercialization of RAPIVABORLADEYO in Japan. Torii launched ORLADEYO in Japan on April 23, 2021.

The Company identified performance obligations related to (i) the Territorylicense to develop and any additional development.

Undercommercialize ORLADEYO, (ii) regulatory approval support and (iii) reimbursement pricing approval support. These were each

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determined to be distinct from the terms ofother performance obligations. The Company allocated the SUL Agreement,$22,000 upfront consideration to the Company received an upfront payment of $33,740, has received $7,000 of milestone payments and may receive an additional $5,000 milestone paymentidentified performance obligations using estimation approaches to determine the standalone selling prices under ASC Topic 606. Specifically, in determining the value related to the successful marketing approval bylicense, a valuation approach utilizing risk adjusted discounted cash flow projections was used, and an expected cost plus margin approach was utilized for the EMA for an adult indication in the EU. The Company is also entitled under the SUL Agreement to receive tiered royalties at a percentage rate beginning in the mid-teens contingent upon meeting minimum thresholds of net sales, as well as a low-thirties percentage of the gross profit from government stockpiling purchases made outside the U.S. Specifically, the Company receives tiered royalties at a percentage rate in the mid-teens to low-forties on net sales in the U.S. during a Contract Year (defined as July 1 - June 30) and tiered royalties at a percentage rate in the mid-teens to mid-twenties on net sales in the Territory, other than in the U.S., during a Calendar Year, each subject to certain downward adjustments for circumstance or events impacting the overall market opportunity. SUL's royalty payment obligations commence on the date of the SUL Agreement and expire, on a country-by-country basis, upon the later of (i) the expiration of legal exclusivity in such country and (ii) ten years from the date of the SUL Agreement. The Company developed peramivir under a license from UAB and will owe sublicense payments to them on any future milestone payments and/or royalties received by the Company from SUL.

performance obligations.

Peramivir Injection (RAPIVAB, RAPIACTA, PERAMIFLU)
Shionogi & Co., Ltd. (“Shionogi”)Ltd.
In February 2007, the Company entered into an exclusive license agreement with Shionogi to develop and commercialize peramivir in Japan for the treatment of seasonal and potentially life-threatening human influenza. Under the terms of the agreement, Shionogi obtained rights to injectable formulations of peramivir in Japan. The Company developed peramivir under a license from UABthe University of Alabama at Birmingham (“UAB”) and will owe sublicense payments to themUAB on any future milestone payments and/or royalties received by the Company from Shionogi. In October 2008, the Company and Shionogi amended the license agreement to expand the territory covered by the agreement to include Taiwan. Shionogi has commercially launched peramivir under the commercial name RAPIACTA in Japan and Taiwan.

Green Cross Corporation (“Green Cross”).
In June 2006, the Company entered into an agreement with Green Cross to develop and commercialize peramivir in Korea. Under the terms of the agreement, Green Cross is responsible for all development, regulatory, and commercialization costs in Korea. The Company received a one-time license fee of $250. The license also provides thatKorea and the Company willis entitled to share in profits resulting from the sale of peramivir in Korea, including the sale of peramivir to the Korean government for stockpiling purposes. Furthermore, Green Cross will pay the Company a premium over its cost to supply peramivir for development and any future marketing of peramivir products in Korea.

Mundipharma International Holdings Limited (“Mundipharma”). In February 2006, the

Government Collaborations
The Company has previously entered into an exclusive, royalty bearing rightcontracts with the U.S. Government, including the procurement contract with HHS for up to 50,000 doses of RAPIVAB over a five-year period to supply the Strategic National Stockpile for use in a public health emergency and license agreementcontracts with MundipharmaNIAID/HHS and BARDA/HHS for the development and commercialization of forodesine,galidesivir. As of March 31, 2023, the Company has delivered a Purine Nucleoside Phosphorylase (“PNP”) inhibitor, for use in oncology. Under the termstotal of 49,980 RAPIVAB doses of the license agreement, as amended, Mundipharma obtained rights to forodesine in markets across Europe, Asia,50,000 RAPIVAB doses available under the procurement contract, effectively completing the contract with HHS, and Australasia in exchangeall of the Company’s government funding for a $10,000 up-front payment. Ingalidesivir has expired.
Note 12 Subsequent Events
On April 2017, Mundipharma obtained regulatory approval of Mundesine® (forodesine hydrochloride) for the treatment of relapsed/refractory PTCL (Peripheral T-Cell Lymphoma) by the Ministry of Health, Labor and Welfare in Japan and is responsible for all commercialization costs in Japan.

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Albert Einstein College of Medicine of Yeshiva University and Industrial Research, Ltd. (“AECOM” and “IRL” respectively). In June 2000,17, 2023, the Company licensed a series of potent inhibitors of PNPsecured $450,000 in committed financing from AECOM and IRL, (collectively, the “Licensors”). The lead product candidates from this collaboration are forodesine and ulodesine.funds managed by Pharmakon Advisors, LP. The Company has obtained worldwide exclusive rightselected to developdraw $300,000 of the $450,000 available under the Pharmakon Loan Agreement on the closing date of the Pharmakon Loan Agreement. The remaining $150,000 of committed capital may be drawn at the Company’s option, subject to certain borrowing conditions, if requested on or prior to September 30, 2024.

Net proceeds to the Company at closing were approximately $26,000 following the repayment of the Athyrium Credit Agreement and ultimately distribute these, or any other, product candidates that might arise from research on these inhibitors.payment of fees and expenses associated with the transaction.
The new five-year Pharmakon Loan Agreement bears interest at the 3-month Secured Overnight Financing Rate (“SOFR”) + 7.00% (subject to a 1.75% floor). The Company has the option to expand the Agreementpay up to include other inventions in the field made by the investigators or employees of the Licensors. The Company agreed to use commercially reasonable efforts to develop these drugs. In addition, the Company has agreed to pay certain milestone payments for each licensed product (which range in the aggregate from $1,400 to almost $4,000 per indication) for future development of these inhibitors, single digit royalties on net sales of any resulting product made by the Company, and to share approximately one quarter of future payments received from other third-party partners, if any. In addition, the Company has agreed to pay annual license fees, which can range from $150 to $500, that are creditable against actual royalties and other payments due to the Licensors. This agreement may be terminated by the Company at any time by giving 60 days advance notice or in the event of material uncured breach by the Licensors. 

In May 2010, the Company amended the licensee agreement through which the Company obtained worldwide exclusive rights to develop and ultimately distribute any product candidates that might arise from research on a series of PNP inhibitors, including forodesine and ulodesine. Under the terms of the amendment, the Licensors agreed to accept a reduction of one-half in the percentage of future payments received from third-party sub licensees of the licensed PNP inhibitors that must be paid to the Licensors. This reduction does not apply to (i) any milestone payments the Company may receive in the future under its license agreement dated February 1, 2006 with Mundipharma and (ii) royalties received from its sub licensees in connection with the sale of licensed products, for which the original payment rate will remain in effect. The rate of royalty payments to the Licensors based on net sales of any resulting product made by the Company remains unchanged. 

On June 19, 2012, the Company further amended its agreements with AECOM/IRL whereby the parties clarified the definition of the field with respect to PNP inhibition and AECOM/IRL agreed to exclusive worldwide license of galidesivir to BioCryst for any antiviral use.

The University of Alabama at Birmingham (“UAB”). The Company currently has agreements with UAB for influenza neuraminidase and complement inhibitors. Under the terms of these agreements, UAB performed specific research for the Company in return for research payments and license fees. UAB has granted the Company certain rights to any discoveries in these areas resulting from research developed by UAB or jointly developed with the Company. The Company has agreed to pay single digit royalties on sales of any resulting product and to share in future payments received from other third-party partners. The Company has completed the research under the UAB agreements. These two agreements have initial 25-year terms, are automatically renewable for five-year terms throughout the life of the last patent and are terminable by the Company upon three months’ notice and by UAB under certain circumstances. Upon termination both parties shall cease using the other parties’ proprietary and confidential information and materials, the parties shall jointly own joint inventions and UAB shall resume full ownership of all UAB licensed products. There is currently no activity between the Company and UAB on these agreements, but when the Company licenses this technology, such as in the case of the Shionogi, Green Cross and SUL agreements, or commercializes products related to these programs, the Company will owe sublicense fees or royalties on amounts it receives.

Note 4 — Royalty Monetization

Overview

On March 9, 2011, the Company completed a $30,000 financing transaction to monetize certain future royalty and milestone payments under the Shionogi Agreement, pursuant to which Shionogi licensed from the Company the rights to market RAPIACTA in Japan and Taiwan. The Company received net proceeds of $22,691 from the transaction after transaction costs of $4,309 and the establishment of a $3,000 interest reserve account by Royalty Sub, available to help cover interest shortfalls in the future. All50% of the interest reserve account has been fully utilized withon the September 2012 interest payment.

As partloans advanced on the closing date in-kind for the first eighteen months of the transaction, the Company entered into a purchase and sale agreement dated as of March 9, 2011 with Royalty Sub, whereby the Company transferredterm (subject to Royalty Sub, among other things, (i) its rightsan increase in margin from 7.00% to receive all non-governmental royalty and milestone payments from Shionogi arising under the Shionogi Agreement, and (ii) the right to receive payments under a Japanese yen/US dollar foreign currency hedge agreement (as further described below, the “Currency Hedge Agreement”) put into place by the Company in connection with the transaction. Royalty payments will be paid by Shionogi in Japanese yen and milestone payments will paid in U.S. dollars. The Company’s collaboration with Shionogi was not impacted as a result of this transaction.

Non-Recourse Notes Payable

On March 9, 2011, Royalty Sub completed a private placement to institutional investors of $30,000 in aggregate principal amount of its PhaRMA Senior Secured 14.0% Notes due 2020 (the “PhaRMA Notes”). The PhaRMA Notes were issued by Royalty Sub under an Indenture, dated as of March 9, 2011 (the “Indenture”7.25%), by and between Royalty Sub and U.S. Bank National Association, as Trustee. Principal and interest on the PhaRMA Notes issued are payable from, and are secured by, the rights to royalty and milestone payments under the Shionogi Agreement transferred byallowing the Company to Royalty Sub anddefer a portion of cash interest payments if any, made to Royalty Sub underuntil after this period. The Pharmakon Loan Agreement contains no scheduled amortization payments, with all outstanding principal due at the Currency Hedge Agreement. The PhaRMA Notes bear interest at 14% per annum, payable annuallymaturity date in arrears on September 1st of each year. The Company remains entitled to receive any royalties and milestone payments related to sales of peramivir by Shionogi following repayment of the PhaRMA Notes.   

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Royalty Sub’s obligations to pay principal and interest on the PhaRMA Notes2028. There are obligations solely of Royalty Sub and are without recourse to any other person, including the Company, except to the extent of the Company’s pledge of its equity interests in Royalty Sub in support of the PhaRMA Notes. The Company may, but is not obligated to, make capital contributions to a capital account that may be used to redeem, or on up to one occasion pay any interest shortfall on, the PhaRMA Notes.

On September 1, 2014, Royalty Sub was unable to pay the full amount of interest payable to avoid an event of default. Accordingly, the PhaRMA Notes and related accrued interest have been classified as current liabilities on the balance sheet. As a result of the event of default under the PhaRMA Notes, the holders of the PhaRMA Notes may pursue acceleration of the PhaRMA Notes, may foreclose on the collateral securing the PhaRMA Notes and the equity interest in Royalty Sub and exercise other remedies available to them under the Indenture in respect of the PhaRMA Notes. In such event, the Company may not realize the benefit of future royalty payments that might otherwise accrue to it following repayment of the PhaRMA Notes and it might otherwise be adversely affected. Due to the non-recourse nature of the PhaRMA Notes, in the event of any potential acceleration or foreclosure, the primary impact to the Company would be the loss of future royalty payments from Shionogi and legal costsno financial covenants associated with retiring the PhaRMA Notes. In addition, the Company may incur costs associated with liquidating the related Currency Hedge Agreement, which would no longer be required in the eventfinancing.


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Table of foreclosure, or if the PhaRMA Notes cease to be outstanding. As the PhaRMA Notes are the obligation of Royalty Sub and non-recourse to the Company, the default of the PhaRMA Notes is not expected to have a significant impact on the Company’s future results of operations or cash flows. As of September 30, 2017, the PhaRMA Notes remain in default.

The Indenture does not contain any financial covenants. The Indenture includes customary representations and warranties of Royalty Sub, affirmative and negative covenants of Royalty Sub, Events of Default and related remedies, and provisions regarding the duties of the Trustee, indemnification of the Trustee, and other matters typical for indentures used in structured financings of this type.

As of September 30, 2017, the aggregate fair value of the PhaRMA Notes was estimated to be approximately 50% of its carrying value of $30,000. The estimated fair value of the PhaRMA Notes is classified as Level 2 in the fair value hierarchy as defined in U.S. GAAP. 

The PhaRMA Notes are redeemable at the option of Royalty Sub at any time at a redemption price equal to the outstanding principal balance of the PhaRMA Notes being redeemed plus accrued and unpaid interest through the redemption date on the PhaRMA Notes being redeemed.

Currency Hedge Agreement

In connection with the issuance by Royalty Sub of the PhaRMA Notes, the Company entered into a Currency Hedge Agreement to hedge certain risks associated with changes in the value of the Japanese yen relative to the U.S. dollar. Under the Currency Hedge Agreement, the Company has the right to purchase dollars and sell yen at a rate of 100 yen per dollar for which the Company may be required to pay a premium in each year from 2018 through 2020, provided the Currency Hedge Agreement remains in effect. A payment of $1,950 will be required if, on May 18 of the relevant year, the U.S. dollar is worth 100 yen or less as determined in accordance with the Currency Hedge Agreement.

The Currency Hedge Agreement does not qualify for hedge accounting treatment; therefore, mark to market adjustments are recognized in the Company’s Consolidated Statement of Comprehensive Loss. Cumulative mark to market adjustments for the nine months ended September 30, 2017 and 2016 resulted in losses of $1,858 and $7,372, respectively. The Company is also required to post collateral in connection with the mark to market adjustments based on defined thresholds. As of September 30, 2017 and December 31, 2016, no collateral was posted under the Currency Hedge Agreement. The Company will not be required to post collateral exceeding the maximum premium payments remaining payable under the Currency Hedge Agreement. As of September 30, 2017, the maximum amount of hedge collateral the Company may be required to post is $5,850.

Contents

Note 5 — Senior Credit Facility

On September 23, 2016, the Company closed a $23,000 Senior Credit Facility with an affiliate of MidCap Financial Services, LLC (“MidCap”), as administrative agent (the “Senior Credit Facility”). The Senior Credit Facility was fully funded at closing and bears a variable interest rate of LIBOR (which shall not be less than 0.5%) plus 8%. The Senior Credit Facility includes an interest-only payment period through fiscal 2017 and scheduled monthly principal and interest payments for the subsequent 40 months. The Company has the option to repay the Senior Credit Facility at any time prior to the scheduled principal repayment date subject to prepayment fees. Final payment of the Senior Credit Facility is subject to a final payment fee equal to 5% of the principal funded under the Senior Credit Facility.

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As of September 30, 2017, the Company had borrowings of $23,000 under the Senior Credit Facility bearing an interest rate of 9.2%. The carrying amount of the debt approximates its fair value based on prevailing interest rates as of the balance sheet date. Scheduled principal repayments of the Senior Credit Facility are as follows:

Principal Payments
2017 $ 
2018  6,900 
2019  6,900 
2020  6,900 
2021  2,300 
     
Total $23,000 

The debt agreement contains two provisions that if deemed probable would create the recognition of an embedded feature; however, we do not believe either provision is probable.

Note 6 — Stockholders’ Equity

On March 3, 2015, the Company filed a $150,000 shelf registration statement on Form S-3 with the Securities and Exchange Commission (the “SEC”). This shelf registration statement became effective upon filing and allows the Company to sell securities, including common stock, preferred stock, depository shares, stock purchase contracts, warrants and units, from time to time at prices and on terms to be determined at the time of sale. On February 26, 2016, the Company filed a post-effective amendment to this registration statement, which allowed for its use by the Company when declared effective by the SEC’s staff on April 18, 2016.

In March 2017, the Company completed a public offering of 6,061 shares of its common stock at a price of $8.50 per share, which included the underwriters’ overallotment option to purchase additional shares. Net proceeds were approximately $47,750 after deducting underwriting discounts and offering expenses.

In September 2017, the Company completed a public offering of 17,864 shares of its common stock at a price of $5.15 per share, which included the underwriters’ overallotment option to purchase additional shares. Net proceeds were approximately $85,750 after deducting underwriting discounts and offering expenses.

Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Quarterly Report on Form 10-Q contains statements of a forward-looking nature relating

The following Managements Discussion and Analysis (MD&A) is intended to future events orhelp the future financial performance of BioCryst. Such statements are only predictions and the actual events or results may differ materially from the results discussed in the forward-looking statements. Factors that could cause or contribute to such differences include those discussed below and elsewhere in this report, as well as those discussed in other filings made by the Company with the Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. See “Information Regarding Forward-Looking Statements.”

Cautionary Statement

The discussion herein contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, which are subject to the “safe harbor” created in Section 21E. Forward looking statements regarding our financial condition andreader understand our results of operations that are based uponand financial condition. MD&A is provided as a supplement to, and should be read in conjunction with, our unaudited consolidated financial statements and the accompanying notes to the financial statements and other disclosures included in this report (including the Cautionary Note Regarding Forward-Looking Statements at the beginning of this report and the Risk Factors section in Part II, Item 1A of this report).

Overview
We are a commercial-stage biotechnology company that discovers and commercializes novel, oral, small-molecule medicines. We focus on oral treatments for rare diseases in which have been preparedsignificant unmet medical needs exist and an enzyme plays the key role in accordance with accounting principles generally accepted withinthe biological pathway of the disease. We integrate the disciplines of biology, crystallography, medicinal chemistry, and computer modeling to discover and develop small molecule pharmaceuticals through the process known as structure-guided drug design. In addition to these discovery and development efforts, our business strategy includes the efficient commercialization of these drugs in the United States (“U.S. GAAP”), as well as projectionsand certain other regions upon regulatory approval. By focusing on rare disease markets, we believe that we can more effectively control the costs of, and our strategic allocation of financial resources toward, post-approval commercialization.
Products and Product Candidates
ORLADEYO® (berotralstat). ORLADEYO is an oral, once-daily therapy discovered and developed by us for the future. The preparationprevention of these financial statements requireshereditary angioedema (“HAE”) attacks. ORLADEYO is approved in the United States and multiple global markets for the prevention of HAE attacks in adults and pediatric patients 12 years and older.
We have built out our managementU.S. commercial infrastructure to make estimatessupport the launch and judgments that affectcontinued commercialization of ORLADEYO in the reported amountsUnited States and are continuing to build our commercial infrastructure to support launches in other markets. Based on proprietary analyses of assets, liabilities, revenuesHAE prevalence and expenses,market research studies with HAE patients, physicians, and related disclosurepayors in the United States and Europe, and two full years of contingent assetscommercialization experience with ORLADEYO in 2021 and liabilities.2022, we anticipate the global commercial market for ORLADEYO has the potential to reach a global peak of $1 billion in annual net ORLADEYO revenues. We evaluate our estimates on an ongoing basis. Our estimates are based on historical experience and on various other assumptions that are believedexpect at least 70 to be reasonable under the circumstances. The results80 percent of our estimates formrevenue at peak to come from the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources.

We operate in a highly competitive environment that involves a number of risks, some of which are beyond our control. WeUnited States. These expectations are subject to numerous risks common to biotechnology and biopharmaceutical companies, including risks inherent in our drug discovery, drug development and commercialization efforts, clinical trials, uncertainty of regulatory actions and marketing approvals, reliance on collaborative partners, enforcement of patent and proprietary rights, the need for future capital, competition associated with products, potential competition associated with our product candidates and retention of key employees. In order for any of our product candidates to be commercialized, it will be necessary for us, or our collaborative partners, to conduct clinical trials, demonstrate efficacy and safety of the product candidate to the satisfaction of regulatory authorities, obtain marketing approval, enter into manufacturing, distribution and marketing arrangements, and obtain market acceptance and adequate reimbursement from government and private insurers. We cannot provide assuranceuncertainties that we will generate significant revenues or achieve and sustain profitability in the future. In addition, we can provide no assurance that we will have sufficient funding to meet our future capital requirements. Statements contained in Management’s Discussion and Analysis of Financial Condition and Results of Operations and elsewhere in this report which are not historical facts are, or may constitute, forward-looking statements. Forward-looking statements involve known and unknown risks that could cause our actual results, performance, or achievements to differbe materially different. There can be no assurance that our commercialization methods and strategies will succeed, or that the market for ORLADEYO will develop in line with our current expectations. See “Risk Factors—Risks Relating to Our Business—Risks Relating to Drug Development and Commercialization—There can be no assurance that our or our partners’ commercialization efforts, methods, and strategies for our products or technologies will succeed, and our future revenue generation is uncertain” in Part II, Item 1A of this report for further discussion of these risks.

Revenue from expected results. The most significant known risks aresales of ORLADEYO for the three months ended March 31, 2023 is discussed under “Results of Operations” in this MD&A. Revenue from sales of ORLADEYO in future periods is subject to uncertainties and will depend on several factors, including the success of our and our partners’ commercialization efforts in the section entitled “Risk Factors.” AlthoughUnited States and elsewhere, the number of new patients switching to ORLADEYO, patient retention and demand, the number of physicians prescribing ORLADEYO, the rate of monthly prescriptions, reimbursement from third-party and government payors, the conversion of patients from our clinical trials and early access programs to commercial customers, our pricing strategy, and market trends. We are continuing to monitor and analyze this data as we believe the expectations reflectedcontinue to commercialize ORLADEYO. In addition, primarily because of typical first quarter requirements from payors for prescription reauthorization of specialty products, like ORLADEYO, that can temporarily move patients from paid drug to free product, copayment assistance and Medicare D cost sharing dynamics, ORLADEYO net revenue in the forward-looking statementsfirst quarter of 2023 was slightly less than the fourth quarter of 2022.
Complement Program. The goal of our overall complement program is to advance several compounds across multiple pathways in the complement system to treat many complement-mediated diseases. These compounds include BCX10013, which targets the alternative pathway of complement. In addition, we are reasonable, we cannot guarantee future results, levelspursuing oral medicines directed at other targets across the classical, lectin, and terminal pathways of activity, performance or achievements.the complement system, including C2, a critical upstream serine protease enzyme for activation of the classical and lectin pathways. We caution you not to place undue reliance on any forward-looking statements.

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have developed potent, selective molecules targeting C2, which are currently in lead optimization.
RAPIVAB®/RAPIACTA®/PERAMIFLU® (peramivir injection). RAPIVAB (peramivir injection) is approved in the United States for the treatment of acute uncomplicated influenza for patients six months and older. Peramivir injection is

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also approved in Canada (RAPIVAB), Australia (RAPIVAB), Japan (RAPIACTA), Taiwan (RAPIACTA), and Korea (PERAMIFLU).
Revenues and Expenses
Our revenues are difficult to predict and depend on numerousseveral factors, including those discussed in the prevalence and severity“Risk Factors” section in Part II, Item 1A of influenzathis report. For example, our revenues depend, in regions for which peramivir has receivedpart, on regulatory approval seasonalitydecisions for our products and product candidates, the effectiveness of influenza, effortour and our collaborative partners’ commercialization efforts, market acceptance of our products, particularly ORLADEYO, and the resources dedicated to peramivir’s commercialization, ongoing discussions with government agencies regarding future peramivir and/or galidesivir developmentour products and stockpiling procurement,product candidates by us and our collaborative partners, as well as entering into or modifying licensing agreements for our product candidates. Furthermore, revenues related to our collaborative development activities are dependent upon the progress toward, and the achievement of, developmental milestones by us or our collaborative partners.

Our operating expenses are also difficult to predict and depend on several factors, including research and development expenses, (and whether these expenses are reimbursable under government contracts), drug manufacturing, and clinical research activities, the ongoing requirements of our development programs, andthe costs of commercialization, the availability of capital and direction from regulatory agencies, which are difficult to predict.predict, and the factors discussed in the “Risk Factors” section in Part II, Item 1A of this report. Management may be able to control the timing and level of research and development and selling, general and administrative expenses, but many of these expenditures will occur irrespective of our actions due to contractually committed activities and/or payments.

As a result of these factors, we believe that period to periodperiod-to-period comparisons are not necessarily meaningful, and you should not rely on them as an indication of future performance. Due to all of the foregoing factors, it is possible that our operating results will be below the expectations of market analysts and investors. In such event, the prevailing market price of our common stock could be materially adversely affected.

Overview

We are a biotechnology company that designs, optimizes and develops novel small molecule drugs that block key enzymes involved in the pathogenesis of diseases. We focus on oral treatments for rare diseases in which significant unmet medical needs exist and that align with our capabilities and expertise. We integrate the disciplines of biology, crystallography, medicinal chemistry and computer modeling to discover and develop small molecule pharmaceuticals through the process known as structure-guided drug design.

Critical Accounting Policies and Estimates

The accompanying discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements and the related disclosures, which have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP.GAAP”). The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosure of contingent assets and liabilities. We evaluate our estimates, judgments and the policies underlying these estimates on a periodic basis, as situations change, and regularly discuss financial events, policies, and issues with members of our audit committee and our independent registered public accounting firm. WeIn particular, we routinely evaluate our estimates and policies regarding revenue recognition, administration, inventory and manufacturing, taxes, stock-based compensation, research and development, consulting and other expenses and any associated liabilities.

Recent Corporate Highlights

RAPIVAB/RAPIACTA/PERAMIFLU (peramivir injection)

Peramivir (i.e., product sold or marketed Our estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the RAPIVAB, RAPIACTA,circumstances. The results of our estimates form the basis for making judgments about the carrying values of assets and PERAMIFLU trade names) is approvedliabilities that are not readily apparent from other sources. See “Critical Accounting Estimates” at the end of this MD&A for commercial salea description of accounting policies that we believe are the most critical to aid you in fully understanding and evaluating our reported financial results and that affect the more significant judgments and estimates that we use in the United States, Canada, Japan, Taiwan and Korea and has a pending Marketing Authorization Application (MAA) under review for treatmentpreparation of symptoms typical of influenza in adults 18 years and older in all 28 states of the European Union, Norway and Iceland. In September 2017, the FDA approved a sNDA for RAPIVAB extending its availability for the treatment of acute uncomplicated influenza to pediatric patients two years and older.

In 2016, our Japanese partner, Shionogi, fulfilled a relatively large stockpiling order to the Japanese Government in advance of the 2016/2017 influenza season for which we recorded $5.7 million of net royalties. In the first quarter of 2017, we received $4.1 million of net royalties from the continued stockpiling of RAPIACTA by the Japanese Government. Unlike the royalties for commercial sales by Shionogi, the proceeds from these stockpiling sales to the Japanese Government are available to us for general corporate use and are not dedicated to satisfying non-recourse obligations under the PhaRMA Notes.

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financial statements.
Recent Developments

BCX7353

In August 2016,

ORLADEYO® (berotralstat)
On January 23, 2023, we announced that the Company entered into a collaboration with Swixx BioPharma AG (“Swixx”) to commercialize ORLADEYO in Central and Eastern Europe (“CEE”). Under the terms of the agreement, Swixx will be responsible for commercializing ORLADEYO in 15 markets within CEE.
On January 26, 2023, we had dosedannounced the enrollment of the first subjectpatient in the APeX-1 clinicalpivotal APeX-P trial evaluating ORLADEYO in pediatric HAE patients who are 2 to <12 years of BCX7353age.
On February 21, 2023, we announced that the Canadian Agency for Drugs and Technologies in Health Canadian Drug Expert Committee recently issued a final draft positive recommendation for ORLADEYO to be reimbursed for the routine prevention of HAE attacks in adults and pediatric patients with HAE. APeX-1 was a 3-part dose ranging trial designed to evaluate the efficacy, safety, tolerability, pharmacokinetics (“PK”)12 years of age and pharmacodynamicsolder.
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On September 5, 2017,February 24, 2023, we reported final results from our APeX-1 clinical trial in HAE patients. This final interim analysis evaluatedannounced that new data from all patients in Parts 1, 2the APeX-S and 3 andAPeX-2 clinical trials, which evaluated doses of BCX7353 62.5 mg (n=7), 125 mg (n=14), 250 mg (n=14) and 350 mg (n=18) QD versus placebo (n=22)ORLADEYO for 28 days. The pre-specified per-protocol interim analysis included data on a total of 67 subjects with confirmed Type 1 or Type 2 HAE completing 28 days of treatment. The percentage reductions by treatment group in the mean rate of independently-adjudicated angioedema attacks for the pre-defined effective dosing period (weeks 2 through 4) in BCX7353 treated subjects were: 62.5mg QD, 7% (p=.715); 125 mg QD, 73% (p<0.001); 250 mg QD, 46% (p=0.006) and 350 mg QD, 58% (p<0.001) compared to placebo. In the intent-to-treat (ITT) population, corresponding reductions by treatment group were: 62.5mg QD, 9% (p=0.687); 125 mg QD, 73% (p<0.001); 250 mg QD, 44% (p=0.014) and 350 mg QD, 45% (p=0.007) compared to placebo.

Oral BCX7353 once-daily for 28 days was generally safe and well tolerated in subjects with HAE. No new clinically significant safety findings were seen in Part 3 of the trial. Overall, there was one serious adverse event (“AE”) of moderate gastrointestinal infection that was determined by the investigator not to be drug-related. As previously reported, study drug was discontinued before day 28 in three subjects in the BCX7353 350 mg treatment arm (due to an unrelated pre-existing liver disorder; drug-related gastroenteritis with liver disorder; and drug-related vomiting/abdominal cramps). The most common treatment-emergent AEs in descending order of frequency were the common cold, headache, diarrhea, nausea and abdominal pain. Gastrointestinal AEs were infrequent at the 125 mg and 62.5 mg dose levels, and there were no clinically significant laboratory abnormalities at these dose levels. The observed efficacy, dose response, PK, safety and tolerability profile of BCX7353 strongly support its advancement into Phase 3 development. Going forward, we have changed our nomenclature to a standardized “base” content reference rather than the total “salt” weight of the compound. This change in referencing nomenclature results in the previously described dose of 125 mg (“salt” reference) to be referred to as a 110 mg dose (“base” reference) in the future. This change reflects only the referencing terminology rather than a change in the dose of the compound.

In the fourth quarter of 2017, we completed regulatory interactions with the FDA and EMA and reached agreement on the Phase 3 program requirements to support NDA and MAA submissions for prophylactic treatment of HAE, demonstrated sustained reductions in attack rates and improvement in quality of life among patients living with BCX7353. Based upon this agreement,HAE, highlighting its profile as a well-tolerated, effective and convenient prophylactic HAE therapeutic option. We also announced additional analyses from new real-world data that further demonstrate a meaningful reduction in attack rates experienced by patients on ORLADEYO, in addition to findings from a survey that underscore a significant disease and treatment burden among pediatric HAE patients, as reported by their caregivers.

On April 27, 2023, we expectannounced that new data from the APeX-S clinical trial, which evaluated ORLADEYO for the prophylactic treatment of HAE, showed sustained reduction in disease burden for patients across multiple subgroups through 96 weeks of treatment.
Complement-Mediated Diseases
BCX10013
On January 9, 2023, we announced that initial data from ongoing phase 1 single ascending dose and multiple ascending dose trials in healthy volunteers showed rapid, sustained and >97 percent suppression of the alternative pathway of the complement system 24 hours following a single 110 mg dose, and that BCX10013 has been safe and generally well-tolerated at all doses studied to begindate. On February 21, 2023, we announced that recent dose-related observations in an ongoing BCX10013 nonclinical study will delay the clinical program.

Refinancing Transaction

On April 17, 2023, we entered into a $450 million Loan Agreement (the “Pharmakon Loan Agreement”) with BioPharma Credit Investments V (Master) LP and BPCR Limited Partnership, as lenders, and BioPharma Credit PLC, as collateral agent for the lenders. Certain of our wholly-owned subsidiaries are guarantors to the Pharmakon Loan Agreement. The Pharmakon Loan Agreement provides for an initial term loan in the principal amount of $300 million (the “Tranche A Loan”) which was funded on April 17, 2023 (the “Tranche A Closing Date”). We utilized the proceeds from the Tranche A Loan to repay the approximate $241.8 million of outstanding indebtedness under our then-existing credit facility with Athyrium Opportunities III Co-Invest 1 LP (the “Athyrium Credit Agreement”) and to pay transaction costs and fees, and we intend to use the remaining significant aspectsnet proceeds of approximately $26 million for other general corporate purposes. The Pharmakon Loan Agreement also provides for three additional term loan tranches in principal amounts of $50 million each, which we may request, at our option, on or prior to September 30, 2024. The maturity date of the programPharmakon Loan Agreement is April 17, 2028, the fifth anniversary of the Tranche A Closing Date. See “Note 12—Subsequent Events” in the first quarterNotes to Consolidated Financial Statements in Part I, Item 1 of 2018. Accordingly, we will initiate a 24-week randomized, double-blind, placebo-controlled Phase 3 clinical trial studying two doses of BCX7353 (“APeX-2”). Patients will roll-over into a 24 week safety extension. Separately, we will initiate a long-term safety trial (“APeX-S”), which will enroll at least 160 patients who will be randomized tothis report for additional information about our obligations under the two doses of BCX7353 included in APeX-2. Subjects will remain on study-drug for 48 weeks. In the fourth quarter of 2017, we received orphan drug status for BCX7353.

On August 2, 2017, we announced the dosing of the first subject into ZENITH-1, a clinical trial studying up to three dosage strengths of a liquid formulation of BCX7353 given as a single oral dose for the acute treatment of angioedema attacks in patients with HAE. ZENITH-1 is a randomized, double-blind, placebo-controlled, adaptive dose-ranging trial of the efficacy, safety and tolerability of BCX7353 for treatment of acute angioedema attacks, and will enroll up to 60 subjects with HAE. Blinded study drug will be dosed as an oral liquid after onset of symptoms, for up to 3 attacks in each subject, with each subject receiving both BCX7353 (for 2 attacks) and placebo (for one attack) in a randomized sequence. The trial is structured with up to 3 consecutive cohorts testing single doses of 750 mg (from 12 to 36 subjects), 500 mg (up to 12 subjects) and 250 mg (up to 12 subjects), starting with 750 mg. Efficacy assessments include patient-reported composite visual analogue scale (“VAS”) scores, patient global assessment, change in symptoms, and use of rescue medication. Treatment effect will be assessed on accumulating results, beginning after 12 subjects have completed study in the first cohort (750 mg), by comparing the proportion of BCX7353-treated and placebo-treated attacks which have a stable or improved composite VAS at 4 hours post dose. Once a treatment effect is demonstrated, enrollment at the 500 mg dose level will commence. If treatment effect at the 500 mg dose level is similar to 750 mg dose level, the 250 mg dose cohort will be enrolled.

Forodesine

In April 2017, Mundipharma obtained regulatory approval of Mundesine (forodesine hydrochloride) for the treatment of relapsed/refractory PTCL (Peripheral T-Cell Lymphoma) by the Ministry of Health, Labor and Welfare in Japan. Forodesine is a Purine Nucleoside Phosphorylase (“PNP”) inhibitor in development by Mundipharma, licensed from us under a world-wide license agreement, as a treatment for cancer. PNP is a purine salvage pathway enzyme. High doses of PNP inhibitors could be useful in the treatment of hematological malignancies. Mundipharma has received orphan drug status for forodesine.

Galidesivir

After discussions with the FDA, NIAID and BARDA, we have delayed the initiation of the galidesivir i.v. Phase 1 clinical trial. Based upon ongoing conversations, we expect the next step in galidesivir’s development will be to obtain agreement from the FDA on the nonclinical efficacy program before finalizing the Phase 1 clinical trial protocol design. Until these additional non-clinical studies are initiated or until additional funding is authorized, development activity under our existing U.S. Government contracts will continue to be restrained.

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Pharmakon Loan Agreement.

Results of Operations (three months ended September 30, 2017March 31, 2023 compared to the three months ended September 30, 2016)

March 31, 2022)

For the three months ended September 30, 2017,March 31, 2023, total revenues were $8.8$68.8 million as compared to $7.8$49.9 million for the three months ended September 30, 2016.March 31, 2022. The increase was primarily due to ORLADEYO net revenue, including royalties, of $68.4 million, an increase of $18.7 million.
Cost of product sales for the three months ended March 31, 2023 and 2022 was $0.9 million and $0.2 million, respectively. The increase in revenuecost of product sales was due to an increase in the third quarter of 2017,ORLADEYO sales as compared to 2016, resulted primarily from a $5.0 million milestone payment associated with the FDA approvalprior year period as well as the utilization of a sNDA for RAPIVAB extending its availabilityvalidation materials and product in the prior year period, the cost of which was expensed prior to product launch. Additionally, for the treatmentthree months ended March 31, 2023, an inventory valuation reserve of acute uncomplicated influenza$0.2 million was recorded for inventory, primarily ORLADEYO, that was at risk of expiration prior to pediatric patients two years and older and the recognition of $1.5 million of peramivir product sales to Green Cross. These increases were partially offset by a $3.1 million decrease in RAPIACTA royalties primarily due to lower government stockpiling sales by Shionogi.

Revenues in the third quarter of 2017 included $1.5 million of peramivir product sales to Green Cross, $0.4 million of royalty revenue from SUL, Shionogi and Green Cross associated with sales of peramivir in the United States, Japan and Korea, $1.5 million of reimbursement of collaborative expenses from NIAID/HHS and BARDA/HHS under U.S. Government development contracts and $5.3 million associated with milestone revenue and collaborative revenue amortization from other corporate partnerships. Revenues in the third quarter of 2016 included $3.5 million of royalty revenue from Shionogi and Green Cross associated with sales of peramivir in the Japan, Korea and Taiwan, $3.8 million of reimbursement of collaborative expenses from NIAID/HHS and BARDA/HHS related to the development of galidesivir, and $0.4 million associated with collaborative revenue amortization from other corporate partnerships.

usage.

Research and development (“R&D”) expenses increaseddecreased to $17.5$48.4 million for the third quarter of 2017three months ended March 31, 2023 from $14.1$65.4 million in 2016. The increase in 2017 R&D expenses, as compared to 2016, was due primarily to increased spending on the Company’s HAE portfolio, including the achievement of a performance-based stock option grant related to the successful completion of the APeX-1 clinical trial. These increases were partially offset by a decrease in the Company’s galidesivir expense under U.S. Government development contracts. 

General and administrative (“G&A”) expenses for the third quarter of 2017 increased to $3.3 million compared to $2.8 million in the third quarter of 2016. The increase wasthree months ended March 31, 2022, primarily due to reduced R&D investment following the achievement of a performance-based stock option grant related to the successful completiondiscontinuation of the APeX-1 clinical trial.

Interest expense increased to $2.1 millionBCX9930 and BCX9250 programs announced in the third quarterDecember and November 2022, respectively.

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Table of 2017 as compared to $1.5 million in 2016 primarily due to our execution of a $23.0 million Senior Credit Facility in September 2016.

A mark-to-market gain of $0.1 million was also recognized in the third quarter of 2017 related to our foreign currency hedge, compared to a mark-to-market loss of $0.9 million in the same quarter in the prior year, both resulting from changes in the U.S. dollar/Japanese yen exchange rate in the related time periods.

Results of Operations (nine months ended September 30, 2017 compared to the nine months ended September 30, 2016)

For the nine months ended September 30, 2017, total revenues were $21.3 million as compared to $17.4 million for the nine months ended September 30, 2016. The increase in 2017 revenue was primarily due to $7.0 million of milestone payments from Seqirus associated with the Canadian regulatory approval and the pediatric sNDA approval of RAPIVAB®, and a $1.2 million increase in royalty revenue from Shionogi & Co. Ltd., Green Cross Corporation and Seqirus. The increase in royalty revenue was largely the result of continued Japanese Government stockpiling of RAPIACTA®. Future government stockpiling orders are difficult to predict, as they are subject to the relevant appropriation and stockpiling processes. These revenue increases were partially offset by a decrease in collaboration revenue under U.S. Government development contracts.

Revenues in the first nine months of 2017 included $1.5 million of peramivir product sales to Green Cross, $7.3 million of royalty revenue from SUL, Shionogi and Green Cross associated with sales of peramivir in the United States, Japan and Korea, $4.3 million of reimbursement of collaborative expenses from NIAID/HHS and BARDA/HHS under U.S. Government development contracts and $8.2 million associated with milestone revenue and collaborative revenue amortization from other corporate partnerships. Revenues in the first nine months of 2016 included $6.0 million of royalty revenue from SUL, Shionogi and Green Cross associated with sales of peramivir in the United States, Japan, Korea and Taiwan, $6.9 million of reimbursement of collaborative expenses from NIAID/HHS and BARDA/HHS related to the development of galidesivir, $2.9 million of reimbursement of collaborative expenses from BARDA/HHS related to the development of RAPIVAB and $1.5 million associated with collaborative revenue amortization from other corporate partnerships.

R&D expenses increased to $50.0 million for the first nine months of 2017 from $48.9 million in 2016. The increase in 2017 R&D expenses, as compared to 2016, was primarily due increased spending on the Company’s HAE portfolio, including the achievement of a performance-based stock option grant related to the successful completion of the APeX-1 clinical trial, as well as increased spending on the Company’s discovery programs. These increases were partially offset by a decrease in galidesivir expenses under U.S. Government development contracts. 

The following table summarizes our R&D expenses for the periods indicated (amounts are in thousands).

  Three Months Ended
September 30,
 Nine Months Ended
September 30,
  2017 2016 2017 2016
R&D expenses by program:                
Avoralstat $  $1,377  $320  $13,011 
BCX7353  10,173   5,671   29,913   15,168 
2nd generation kallikrein inhibitors  121   141   996   1,139 
Galidesivir  1,173   3,462   3,466   7,213 
Peramivir  1,005   1,017   3,911   4,679 
Other research, preclinical and development costs  5,037   2,437   11,432   7,640 
                 
Total R&D expenses $17,509  $14,105  $50,038  $48,850 

G&A Certain prior period amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on total R&D expenses.

Three Months Ended March 31,
20232022
R&D expenses by program:
Factor D program$26,185 $47,907 
Berotralstat9,501 8,217 
FOP704 2,875 
Peramivir407 408 
Galidesivir161 586 
Other research, preclinical and development costs11,430 5,367 
Total R&D expenses$48,388 $65,360 
Selling, general and administrative (“SG&A”) expenses for the first ninethree months of 2017 increased to $9.2ended March 31, 2023 were $47.9 million compared to $8.7$34.3 million of in the first ninethree months of 2016.ended March 31, 2022. The increase was primarily due to increased investment to expand and enhance the achievementU.S. commercial team and expanded international operations.
Interest expense for the three months ended March 31, 2023 was $27.4 million compared to $23.8 million for the three months ended March 31, 2022. The increase in interest expense was primarily associated with the additional aggregate borrowing of a performance-based stock option grant related$75.0 million of the Term B Loan and the Term C Loan under the Athyrium Credit Agreement, which were funded on July 29, 2022.
Interest expense for the three months ended March 31, 2023 included $19.3 million of non-cash interest expense due to the successful completionamortization of interest associated with the royalty financing obligations and $8.0 million of interest expense, including the amortization of the APeX-1 clinical trial.

deferred financing associated with the borrowings under the Athyrium Credit Agreement. Interest expense which isfor the three months ended March 31, 2022 included $19.6 million of non-cash interest expense due to the amortization of interest associated with the royalty financing obligations under the 2020 RPI Royalty Purchase Agreement (as defined in Note 6—Royalty Monetizations—ORLADEYO and Factor D Inhibitors” in the Notes to Consolidated Financial Statements in Part I, Item 1 of this report) and $4.2 million of interest expense, net of deferred financing amortization, associated with the Term A Loan under the Athyrium Credit Agreement.

For the three months ended March 31, 2023, other income, net of $3.1 million was comprised primarily of interest income of $3.4 million and net foreign currency losses of $0.2 million. Other expense for the three months ended March 31, 2022 was primarily related to the non-recourse notes issued in conjunction with the non-dilutive RAPIACTA royalty monetization transaction in March 2011 and borrowings under the Senior Credit Facility, was $6.3 million in the first nine months of 2017, compared to $4.4 million in the first nine months of 2016.

A mark-to-market loss of $1.9 million was recognized in the first nine months of 2017 related to ournet foreign currency hedge, compared to a mark-to-market losslosses of $7.4 million in the same period in the prior year, both resulting from changes in the U.S. dollar/Japanese yen exchange rate in the related time periods. In addition, we realized a currency exchange gain of $1.0 million and $0.8 million, respectively, in the first nine months of 2017 and 2016 related to the exercise of a U.S. dollar/Japanese yen currency option under our foreign currency hedge.

$0.2 million.

Liquidity and Capital Resources

Cash expenditures have exceeded revenues since our inception and we expect our 2017 operating expenses to exceed our 2017 revenues.

Our operations have principally been funded through public offerings and private placements of equity securities; our credit facilities; revenues from ORLADEYO; royalty monetization transactions; and cash from collaborative and other research and development agreements, including U.S. Government contracts for RAPIVAB and galidesivir; and to a lesser extent, the PhaRMA Notes and the Senior Credit Facility financings. To date, we have been awarded a BARDA/HHS RAPIVAB development contract totaling $234.8 million, which expired on June 30, 2014, a NIAID/HHS galidesivir development contract totaling $39.5 million, which is ongoing, and a BARDA/HHS galidesivir development contract totaling $39.1 million, which is also ongoing. The total amount of NIAID/HHS and BARDA/HHS galidesivir funding obligated under awarded options is $39.5 million and $20.6 million, respectively. We may issue securities through private placement transactions or registered public offerings pursuant to a registration statement filed with the SEC.contracts. In addition to the above, we have previously received funding from other sources, including other collaborative and other research and development agreements;agreements, government grants;grants, equipment lease financing;financing, facility leases;leases, research grants;grants, and interest income on our investments.

In 2020 and 2021, we entered into the Royalty Purchase Agreements (as defined in “Note 6—Royalty Monetizations—ORLADEYO and Factor D Inhibitors” in the Notes to Consolidated Financial Statements in Part I, Item 1 of this report) with RPI 2019 Intermediate Finance Trust (“RPI”) and OCM IP Healthcare Holdings Limited, an affiliate of OMERS Capital Markets (“OMERS”). Under the Royalty Purchase Agreements, RPI and OMERS are entitled to receive tiered, sales-based royalties on net product sales of ORLADEYO in the United States and certain key European markets (collectively, the “Key Territories”), and other markets where we sell ORLADEYO directly or through distributors. In addition, RPI and OMERS are entitled to receive a tiered revenue share on amounts generally received by us on account of ORLADEYO sublicense revenue or net sales by licensees outside of the Key Territories. We will be required to make payments to OMERS commencing with the calendar quarter beginning October 1, 2023. See “Note 6—Royalty Monetizations—ORLADEYO and Factor D Inhibitors” in the Notes to Consolidated Financial Statements in Part I, Item 1 of this report for additional information about these financing transactions.
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As of September 30, 2017,March 31, 2023, we had net working capital of $106.1$405.7 million, an increasea decrease of approximately $93.5$5.3 million from $12.6$411.0 million at December 31, 2016.2022. The increasedecrease in working capital was principallyprimarily due to $133.5 million of proceeds from our March 2017 and September 2017 public offerings of common stock, partially offset by our normal operating expenses associated with the development of our product candidates.candidates and commercialization of ORLADEYO. Our principal sources of liquidity at September 30, 2017March 31, 2023 were approximately $117.8$155.1 million in cash and cash equivalents and approximately $48.4$243.0 million in investments considered available-for-sale,available-for-sale.
On April 17, 2023, we entered into the Pharmakon Loan Agreement. The Pharmakon Loan Agreement provides for an initial $300 million Tranche A Loan, which was funded on April 17, 2023. We utilized the proceeds from the Tranche A Loan to repay the approximate $241.8 million of outstanding indebtedness under the Athyrium Credit Agreement and to pay transaction costs and fees, and we intend to use the remaining net proceeds of approximately $2.0$26 million for other general corporate purposes. The Pharmakon Loan Agreement also provides for three additional term loan tranches in U.S. Government receivables. We anticipateprincipal amounts of $50 million each, which we may request, at our cash and investments will fundoption, on or prior to September 30, 2024. The maturity date of the Pharmakon Loan Agreement is April 17, 2028. See “Note 12—Subsequent Events” in the Notes to Consolidated Financial Statements in Part I, Item 1 of this report for additional information about our operations at least throughobligations under the third quarter of 2019.

Pharmakon Loan Agreement.

We intend to contain costs and cash flow requirements by closely managing our third partythird-party costs and headcount, leasing scientific equipment and facilities, contracting with other parties to conduct certain research and development projects, and using consultants. We expect to incur additional expenses, potentially resulting in significant losses, as we continue to pursue our research and development activities, commercialize ORLADEYO, and begin to build a commercial infrastructure.hire additional personnel. We may incur additional expenses related to the filing, prosecution, maintenance, defense, and enforcement of patent and other intellectual property claims and additional regulatory costs as our clinical programs advance through later stages of development. The objective of our investment policy is to ensure the safety and preservation of invested funds, as well as maintainingto maintain liquidity sufficient to meet cash flow requirements. We place our excess cash with high credit quality financial institutions, commercial companies, and government agencies in order to limit the amount of our credit exposure. We have not realized any significant losses on our investments.

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We plan to finance our needs principally from the following:

lease, royalty, or loan financing and future financing;
public or private equity and/or debt financing;

our existing capital resources and interest earned on that capital;

revenues from product sales; and
payments under existing and executing new contracts with the U.S. Government; and

payments undercurrent or future collaborative and licensing agreements with corporate partners.

As our commercialization activities and research and development programs continue to advance, our costs will increase. Our current and planned clinical trials, plus the related development, manufacturing, regulatory approval process requirements, and additional personnel resources and testing required for the continuing development of our product candidates and the commercialization of our products will consume significant capital resources and will increase our expenses. Our expenses, revenues and cash utilization rate could vary significantly depending on many factors, including our ability to raise additional capital, the development progress of our collaborative agreements for our product candidates, the amount and timing of funding we receive from existing U.S. Government contracts for galidesivir, the amount of funding or assistance, if any, we receive from new U.S. Government contracts or other new partnerships with third parties for the development and and/or commercialization of our products and product candidates, the progress and results of our current and proposed clinical trials for our most advanced product candidates, the progress made in the manufacturing of our lead product candidates, the success of our commercialization efforts for, and market acceptance of, our products, and the overall progression of our other programs.

With The impact of the funds available at September 30, 2017,ongoing COVID-19 pandemic on one or more of the foregoing factors could negatively affect our revenues, expenses, and cash utilization rate.

Based on our expectations for revenue and operating expenses, we believe theseour financial resources will be sufficient to fund our operations for at least through the third quarter of 2019. Wenext 12 months. However, we have sustained operating losses for the majority of our corporate history and expect that our 20172023 expenses will exceed our 20172023 revenues. We expect to continue to incur operating losses and negative cash flows until revenues reach a level sufficient to support ongoing operations. Our liquidity needs will largely be largely determined by the success of operations in regardsregard to the successful commercialization of our products and the future progression of our product candidates in the future.candidates. We also may considerregularly evaluate other plansopportunities to fund future operations, beyond the third quarter of 2019 including: (1) securing or increasing U.S. Government funding of our programs, including obtaining procurement contracts; (2) out-licensing rights to certain of our products or product candidates, pursuant to which the we would receive cash milestones; (3)milestone payments; (2) raising additional capital through equity or debt financings or from other sources; (4)sources, including royalty or other monetization transactions; (3) obtaining additional product candidate regulatory approvals, which would generate revenue, milestonesmilestone payments and cash flow; (5)(4) reducing spending on one or more research and development programs, including by discontinuing development; and/or (6)(5) restructuring operations to change our overhead structure.structure; and/or
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(6) securing U.S. Government funding of our programs, including obtaining procurement contracts. We may issue securities, including common stock, preferred stock, depositary shares, stock purchase contracts, warrants, debt securities, and units, through private placement transactions or registered public offerings. Our future liquidity needs, and our ability to address those needs, will largely be determined by the success of our products and product candidatescandidates; the timing, scope, and magnitude of our research and development and commercial expenses; and key developmentdevelopments and regulatory events and our decisions in the future.

Our long-term capital requirements and the adequacy of our available funds will depend upon many factors, including:

our ability to perform under our government contracts and receive reimbursement, and receive stockpiling procurement contracts;
the magnitude of work under our government contracts;
the progress and magnitude of our research, drug discovery and development programs;
changes in existing or securing additional collaborative relationships or government contracts;
our ability to establish additional collaborative relationships with academic institutions, biotechnology or pharmaceutical companies and governmental agencies or other third parties;
the extent to which our partners, including governmental agencies, will share in the costs associated with the development of our programs or run the development programs themselves;
our ability to negotiate favorable development and marketing strategic alliances for certain product candidates or a decision to build or expand internal development and commercial capabilities;
successful commercialization of marketed products by either us or a partner;

the scope and results of preclinical studies and clinical trials to identify and develop product candidates;
our ability to engage sites and enroll subjects in our clinical trials;
the scope of manufacturing of our product candidates to support our preclinical research and clinical trials;
increases in personnel and related costs to support the development and commercialization of our product candidates;
market acceptance of approved products and successful commercialization of such products by either us or our partners;
our ability to receive reimbursement and stockpiling procurement contracts;
the progress and magnitude of our research, drug discovery and development programs;
changes in existing collaborative relationships;
our ability to establish additional collaborative relationships with academic institutions, biotechnology or pharmaceutical companies, governmental agencies, distributors or other third parties;
the extent to which our partners will share in the costs associated with the development of our programs or run the development programs themselves;
our ability to negotiate favorable development and marketing strategic alliances for certain products and product candidates;
any decision to build or expand internal development and commercial capabilities;
the scope and results of preclinical studies and clinical trials to identify and develop product candidates;
our ability to engage sites and enroll subjects in our clinical trials;
the scope of manufacturing of our products to support our commercial operations and of our product candidates to support our preclinical research and clinical trials;
increases in personnel and related costs to support the development and commercialization of our products and product candidates;
the scope of manufacturing of our drug substance and product candidates required for future new drug application (“NDA”) filings;
competitive and technological advances;
the time and costs involved in obtaining regulatory approvals;
post-approval commitments for ORLADEYO, RAPIVAB, and other products that receive regulatory approval; and
the costs involved in all aspects of intellectual property strategy and protection, including the costs involved in preparing, filing, prosecuting, maintaining, defending, and enforcing patent claims.
We may in the future NDA filings;

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competitive and technological advances;
the time and costs involved in obtaining regulatory approvals; 
post-approval commitments for RAPIVAB and other products that receive regulatory approval; and
the costs involved in all aspects of intellectual property strategy and protection including the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing patent claims.

We expect that we will be required to raise additional capital to complete the development and commercialization of our currentproducts and product candidates, and we may seek to raise capital in the future.future, including to take advantage of favorable opportunities in the capital markets. Additional funding whether through additional sales of equity or debt securities, collaborative or other arrangements with corporate partners or from other sources, including governmental agencies in general and existing government contracts specifically, may not be available when needed or in the form or on terms acceptable to us. The issuance of preferred or common stock or convertible securities, with terms and prices significantly more favorable than those of the currently outstanding common stock, could have the effect of diluting or adversely affecting the holdings or rights of our existing stockholders. In addition, collaborative arrangements may require us to transfer certain material rights to such corporate partners. Insufficient funds may require us to delay, scale back or eliminate certain of our research and development programs. Our future working capital requirements, including the need for additional working capital, will largely be largely determined by the advancement of our portfolio of product candidates as well as rateand the commercialization of reimbursement by U.S. Government agencies of our galidesivir expenses and any future decisions regarding the future of the RAPIVAB and galidesivir programs, including those relating to stockpiling procurement.ORLADEYO. More specifically, our working capital requirements will be dependent on the number, magnitude, scope and timing of our development programs; regulatory approval of our product candidates; obtaining funding from collaborative partners; the cost, timing and outcome of regulatory reviews, regulatory investigations, and changes in regulatory requirements; the costs of obtaining patent protection for our product candidates; the timing and terms of business development activities; the rate of technological advances relevant to our operations; the efficiency of manufacturing processes developed on our behalf by third parties; the timing, scope and magnitude of commercial spending; and the level of required administrative support for our daily operations.

See “Risk Factors—Risks Relating to Our Business—Financial and Liquidity Risks” and “Risk Factors—Risks Relating to Our Business—Risks Relating to Drug Development and Commercialization—If we fail to obtain additional financing or acceptable partnership arrangements as and when needed, we may be unable to complete the development and commercialization of our products and product candidates or continue operations” in Part II, Item 1A of this report for further discussion of the risks related to obtaining additional capital.

The restrictive covenants contained in the Senior Credit FacilityPharmakon Loan Agreement could cause us to be unable to pursue business opportunities that we or our stockholders may consider beneficial without the lender’slenders’ permission or without repaying all Senior Credit Facility obligations.obligations outstanding under the Pharmakon Loan Agreement. These covenants limit our ability to, among other things, convey, sell, lease, license, transfer or otherwise dispose of certain parts of our business or property; change the nature of our business; liquidate or dissolve; enter into certain changeassets; engage in control or acquisitionmergers, acquisitions, and similar transactions; incur or assume certain debt;additional indebtedness; grant certain types of liens on our assets; modify, liquidate or transfer assets in certain collateral accounts;liens; make investments; pay dividends or make distributions or certain distributions to our stockholders; make certain investments;other restricted payments in respect of equity;
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prepay other indebtedness; enter into restrictive agreements; undertake fundamental changes; or amend certain material transactions with affiliates; and modify existing debt or collaboration arrangements.contracts. A breach of any of these covenants could result in an event of default under the Senior Credit Facility.

Financial Outlook for 2017

Based upon our development plans, expected operations and our awarded government contracts,Pharmakon Loan Agreement. As of March 31, 2023, we expect 2017 operating cash usagewere in compliance with the covenants to be in the upper half of our previously disclosed range of $30 to $50 million, and expect our total 2017 operating expenses to be in the upper half of our previously disclosed range of $53 to $73 million. Our operating expense range excludes equity-based compensation expense due to the difficulty in accurately projecting this expense as it is significantly impacted by the volatility and price of the Company’s stock, as well as vesting of the Company’s outstanding performance-based stock options. Our operating cash forecast excludes any impact of our royalty monetization, hedge collateral posted or returned, and any other non-routine cash outflows or inflows. Our ability to remain within our operating expense and operating cash target ranges iswhich we were then subject to multiple factors, including unanticipated or additional general development and administrative costs and other factors described under the Risk Factors located elsewhere in this report.

Off-Balance Sheet Arrangements

As of September 30, 2017, we do not have any unconsolidated entities or off–balance sheet arrangements.

Athyrium Credit Agreement.

Critical Accounting Policies

Estimates

We have established various accounting policies that govern the application of U.S. GAAP, which were utilized in the preparation of our consolidated financial statements. Certain accounting policies involve significant judgments and assumptions by management that have a material impact on the carrying value of certain assets and liabilities. Management considers such accounting policies to be critical accounting policies. The judgments and assumptions used by management are based on historical experience and other factors, which are believed to be reasonable under the circumstances. Because of the nature of the judgments and assumptions made by management, actual results could differ from these judgments and estimates, which could have a material impact on the carrying values of assets and liabilities and the results of operations.

While our significant accounting policies are more fully described in Note“Note 1—Significant Accounting Policies and Concentrations of Risk” in the Notes to Consolidated Financial Statements in Part I, Item 1 to our consolidated financial statements included in our 2016 Annual Report on Form 10-K for the year ended December 31, 2016,of this report, we believe that the following accounting policies are the most critical to aid you in fully understanding and evaluating our reported financial results and affect the more significant judgments and estimates that we use in the preparation of our financial statements.

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Revenue Recognition

Pursuant to Accounting Standards Codification (“ASC”) Topic 606, we recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core principle, Topic 606 includes provisions within a five step model that includes (i) identifying the contract with a customer, (ii) identifying the performance obligations in the contract, (iii) determining the transaction price, (iv) allocating the transaction price to the performance obligations, and (v) recognizing revenue when, or as, an entity satisfies a performance obligation.
At contract inception, we identify the goods or services promised within each contract, assess whether each promised good or service is distinct, and determine those that are performance obligations. We recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when the performance obligation is satisfied.
Product Sales, Net
Our principal sources of product sales are sales of ORLADEYO, which we began shipping to patients in December 2020, sales of peramivir to our licensing partners and sales of RAPIVAB to HHS under our procurement contract. In the United States, we ship ORLADEYO directly to patients through a single specialty pharmacy, which is considered our customer. In the European Union, United Kingdom and elsewhere, we sell ORLADEYO to specialty distributors as well as hospitals and pharmacies, which collectively are considered our customers.
We recognize revenue for sales when our customers obtain control of the product, which generally occurs upon delivery. For ORLADEYO, we classify payments to our specialty pharmacy customer for certain services provided by our customer as selling, general and administrative expenses to the extent such services provided are determined to be distinct from the sale of our product.
Net revenue from sales of ORLADEYO is recorded at net selling price (transaction price), which includes estimates of variable consideration for which reserves are established for (i) estimated government rebates, such as Medicaid and Medicare Part D reimbursements, and estimated managed care rebates, (ii) estimated chargebacks, (iii) estimated costs of co-payment assistance programs and (iv) product returns. These reserves are based on the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable or as a current liability. Overall, these reserves reflect our best estimates of the amount of consideration to which we are entitled based on the terms of the applicable contract. The amount of variable consideration included in the transaction price may be constrained and is included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts of consideration ultimately received may differ from our estimates. If actual results in the future vary from estimates, we adjust these estimates, which would affect net product revenue and earnings in the period such variances become known.
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Government and Managed Care Rebates. We contract with government agencies and managed care organizations or, collectively, third-party payors, so that ORLADEYO will be eligible for purchase by, or partial or full reimbursement from, such third-party payors. We estimate the rebates we will provide to third-party payors and deduct these estimated amounts from total gross product revenues at the time the revenues are recognized. These reserves are recorded in the same period in which the revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. We estimate the rebates that we will provide to third-party payors based upon (i) our contracts with these third-party payors, (ii) the government mandated discounts applicable to government-funded programs, (iii) a range of possible outcomes that are probability-weighted for the estimated payor mix, and (iv) product distribution information obtained from our specialty pharmacy.
Chargebacks. Chargebacks are discounts that occur when certain contracted customers, pharmacy benefit managers, insurance companies, and government programs purchase directly from our specialty pharmacy. These customers purchase our products under contracts negotiated between them and our specialty pharmacy. The specialty pharmacy, in turn, charges back to us the difference between the price the specialty pharmacy paid and the negotiated price paid by the contracted customers, which may be higher or lower than the specialty pharmacy’s purchase price from us. We estimate chargebacks and adjust gross product revenues and accounts receivable based on the estimates at the time revenues are recognized.
Co-payment assistance and patient assistance programs. Patients who have commercial insurance and meet certain eligibility requirements may receive co-payment assistance. Based upon the terms of the program and co-payment assistance utilization reports received from the specialty pharmacy, we are able to estimate the co-payment assistance amounts, which are recorded in the same period in which the related revenue is recognized, resulting in a reduction of product revenue. We also offer a patient assistance program that provides free drug product, for a limited period of time, to allow a patient’s insurance coverage to be established. Based on patient assistance program utilization reports provided by the specialty pharmacy, we record gross revenue of the product provided and a full reduction of the revenue amount for the free drug discount.
Product returns. We do not provide contractual return rights to our customers, except in instances where the product is damaged or defective. Non-acceptance by the patient of shipped drug product by the specialty pharmacy is reflected as a reversal of sales in the period in which the sales were originally recorded. Reserves for estimated non-acceptances by patients are recorded as a reduction of revenue in the period that the related revenue is recognized, as well as a reduction to accounts receivable. Estimates of non-acceptance are based on quantitative information provided by the specialty pharmacy.
Collaborative and Other Revenues
We have collaboration and license agreements with a number of third parties, as well as research and development agreements with certain government entities. Our primary sources of revenue from these collaborative and other research and development arrangements are license, service and royalty revenues.
Revenue from license fees, royalty payments, milestone payments, and research and development fees are recognized as revenue when the earnings process is complete and we have no further continuing performance obligations or we have completed the performance obligations under the terms of the agreement.
Arrangements that involve the delivery of more than one performance obligation are initially evaluated as to whether the intellectual property licenses granted by us represent distinct performance obligations. If they are determined to be distinct, the value of the intellectual property licenses would be recognized up-front while the research and development service fees would be recognized as the performance obligations are satisfied. For performance obligations based on services performed, we measure progress using an input method based on the effort we expend or costs we incur toward the satisfaction of the performance obligation in relation to the total estimated effort or costs. Variable consideration is assessed at each reporting period as to whether it is not subject to significant future reversal and, therefore, should be included in the transaction price at the inception of the contract. If a contract includes a fixed or minimum amount of research and development support, this also would be included in the transaction price. Changes to collaborations, such as the extensions of the research term or increasing the number of targets or technology covered under an existing agreement, are assessed for whether they represent a modification or should be accounted for as a new contract. For contracts with multiple performance obligations, revenue is allocated to each performance obligation based on its relative standalone selling price. Standalone selling prices are based on observable prices at which we separately sell the products or services. If a standalone selling price is not directly observable, then we estimate the standalone selling price using either an adjusted market assessment approach or an expected cost plus margin approach, representing the amount that we believe the market
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is willing to pay for the product or service. Analyzing the arrangement to identify performance obligations requires the use of judgment, and each may be an obligation to deliver services, a right or license to use an asset, or another performance obligation.
Milestone payments are recognized as licensing revenue upon the achievement of specified milestones if (i) the milestone is substantive in nature and the achievement of the milestone was not probable at the inception of the agreement and (ii) we have a right to payment. Any milestone payments received prior to satisfying these revenue recognition criteria are recorded as deferred revenue.
Reimbursements received for direct out-of-pocket expenses related to research and development costs are recorded as revenue in the Consolidated Statements of Comprehensive Loss rather than as a reduction in expenses. Under our contracts with BARDA/HHS and NIAID/HHS, revenue is recognized as reimbursable direct and indirect costs are incurred.
Under certain of our license agreements, we receive royalty payments based upon our licensees’ net sales of covered products. Royalties are recognized at the later of when (i) the subsequent sale or usage occurs, or (ii) the performance obligation to which some or all of the sales-based or usage-based royalty has been satisfied.
Inventory

Our inventories consist of peramivir work in process, which is valuedprimarily relate to ORLADEYO. Additionally, our inventory includes RAPIVAB and peramivir.
We value our inventories at the lower of cost andor estimated net realizable value usingvalue. We determine the first-in, first-out (i.e., FIFO) method. Costcost of our inventories, which includes amounts related to materials, labor, manufacturing overhead and shipping and handling costs. costs on a first-in, first-out (FIFO) basis. Raw materials and work-in-process include all inventory costs prior to packaging and labeling, including raw material, active product ingredient, and the drug product. Finished goods include packaged and labeled products.
Our inventories are subject to expiration dating. We regularly evaluate the carrying value of our inventories and provide valuation reserves for any estimated obsolete, short-dated or unmarketable inventories. In addition, we may experience spoilage of our raw materials and supplies. Our determination that a valuation reserve might be required, in addition to the quantification of such reserve, requires us to utilize significant judgment.

During the quarter ended March 31, 2023, we evaluated our inventory levels and associated expiration dating relative to the latest sales forecasts for ORLADEYO and RAPIVAB and estimated those inventories at risk of obsolescence. Accordingly, we recorded an increase to the inventory valuation reserve of $0.2 million for a total reserve of $1.4 million as of March 31, 2023.

We expense costs related to the production of inventories as research and development expenses in the period incurred until such time it is believed that future economic benefit is expected to be recognized, which generally is upon receipt of regulatory approval. Upon regulatory approval, we capitalize subsequent costs related to the production of inventories.
Accrued Expenses

We enter into contractual agreements with third-party vendors who provide research and development, manufacturing, distribution, and other services in the ordinary course of business. Some of these contracts are subject to milestone-based invoicing, and services are completed over an extended period of time. We record liabilities under these contractual commitments when we determine an obligation has been incurred.incurred, regardless of the timing of the invoice. This accrual process involves reviewing open contracts and purchase orders, communicating with our applicable Company personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual cost. The majority of our service providers invoice us monthly in arrears for services performed. We make estimates of our accrued expenses as of each balance sheet date in our financial statements based on the facts and circumstances, known to us.which can include assumptions such as expected patient enrollment, site activation and estimated project duration. We periodically confirm the accuracy of our estimates with the service providers and make adjustments if necessary. Examples of estimated accrued expenses include:

fees paid to Contract Research Organizations (“CROs”) in connection with preclinical and toxicology studies and clinical trials;
fees paid to investigative sites in connection with clinical trials;
fees paid to contract manufacturers in connection with the production of our raw materials, drug substance and product candidates; and
professional fees.

include (i) fees paid to clinical research organizations (“CROs”) in connection with preclinical and toxicology studies and clinical trials; (ii) fees paid to investigative sites in connection with clinical trials; (iii) fees paid to contract manufacturers in connection with the production of our raw materials, drug substance, drug products, and product candidates; and (iv) professional fees.

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We base our expenses related to clinical trials on our estimates of the services received and efforts expended pursuant to contracts with multiple research institutions and CROs that conduct and manage clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. Payments under some of these contracts depend on factors such as the successful enrollment of patients and the completion of clinical trial milestones. In accruing service fees, we estimate the time period over which services will be performed and the level of effort expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we will adjust the accrual accordingly. If we do not identify costs that we have begun to incur or if we underestimate or overestimate the level of these costs, our actual expenses could differ from our estimates.

Revenue Recognition

We recognize revenues from collaborative As of March 31, 2023 and other research and development arrangements and product sales. Revenue is realized or realizable and earned when allDecember 31, 2022, the carrying value of the following criteria are met: (i) persuasive evidence of an arrangement exists; (ii) delivery has occurred or services have been rendered; (iii) the seller’s price to the buyer is fixed or determinable; and (iv) collectability is reasonably assured.

Collaborative and Other Research and Development Arrangements and Royalties

Revenue from license fees, royalty payments, event payments, and research and development fees are recognized as revenue when the earnings process is complete and we have no further continuing performance obligations or we have completed the performance obligations under the terms of the agreement. Fees received under licensing agreements that are related to future performance are deferred and recognized over an estimated period determined by management based on the terms of the agreement and the products licensed. In the event a license agreement contains multiple deliverables, we evaluate whether the deliverables are separate or combined units of accounting. Revisions to revenue or profit estimates as a result of changes in the estimated revenue period are recognized prospectively. 

Under certain of our license agreements, we receive royalty payments based upon our licensees’ net sales of covered products. We recognize royalty revenues when we can reliably estimate such amounts and collectability is reasonably assured. Royalty revenue paid by Shionogi onaccrued expenses approximates their product sales is subject to returns.

For arrangements that involve the delivery of more than one element, each product, service and/or right to use assets is evaluated to determine whether it qualifies as a separate unit of accounting. This determination is based on whether the deliverable has “stand-alone value” to the customer. The consideration that is fixed or determinable is then allocated to each separate unit of accounting based on the relative selling price of each deliverable. The estimated selling price of each deliverable is determined using the following hierarchy of values: (i) vendor-specific objective evidence of fair value (ii) third-party evidence of selling price (“TPE”) and (iii) best estimate of selling price (“BESP”). The BESP reflects our best estimate of what the selling price would be if the deliverable was regularly sold by us on a stand-alone basis. In most cases we expectdue to use TPE or BESP for allocating consideration to each deliverable. The consideration allocated to each unit of accounting is recognized as the related goods or services are delivered, limited to the consideration that is not contingent upon future deliverables. Analyzing the arrangement to identify deliverables requires the use of judgment, and each deliverable may be an obligation to deliver services, a right or license to use an asset, or another performance obligation. 

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their short-term settlement.

In June 2015, we entered into a License Agreement (the "SUL Agreement") granting SUL and its affiliates worldwide rights, excluding Israel, Japan, Korea and Taiwan, to develop, manufacture and commercialize RAPIVAB. The SUL Agreement provides for various types of payments, including a non-refundable upfront fee, milestone payments, and future royalties. Analysis of the SUL Agreement identified three deliverables: (i) license rights, (ii) inventory and (iii) regulatory support to obtain Canadian and EU marketing approvals. We received an upfront payment of $33.7 million from SUL of which $7.0 million was determined to be contingent upon EU marketing approval and will be deferred until that time. Approximately $21.8 million of the upfront payment was allocated to the license rights and recognized as revenue in the second quarter. Approximately $3.7 million of the upfront payment was allocated to the sale of inventory and was recognized in the third quarter when the inventory transfer was completed. Approximately $1.2 million of the revenue from the SUL Agreement will be recognized ratably over the expected period of involvement in these regulatory support activities. 

Milestone payments are recognized as licensing revenue upon the achievement of specified milestones if (i) the milestone is substantive in nature and the achievement of the milestone was not reasonably assured at the inception of the SUL Agreement; and (ii) the fees are non-refundable. Any milestone payments received prior to satisfying these revenue recognition criteria are recorded as deferred revenue. 

During the first nine months of 2017, we received a $2.0 million milestone payment related to the approval of RAPIVAB by Health Canada and a $5.0 million milestone payment associated with the FDA approval of a sNDA for RAPIVAB extending its availability for the treatment of acute uncomplicated influenza to pediatric patients two years and older. We evaluated each event based payment under the provisions of ASU 2010-17, Milestone Method of Revenue Recognition, and determined that each event based payment met the criteria to be considered substantive and represents a milestone under the milestone method of accounting. Under the terms of the SUL Agreement, we may receive an additional $5.0 million payment related to the successful marketing approval by the EMA for an adult indication in the EU. No event-based payments were achieved during the first nine months of 2016. 

Reimbursements received for direct out-of-pocket expenses related to research and development costs are recorded as revenue in the income statement rather than as a reduction in expenses. Under our contracts with BARDA/HHS and NIAID/HHS, revenue is recognized as reimbursable direct and indirect costs are incurred.

Research and Development Expenses

Our research and development costs are charged to expense when incurred. Research and development expenses include all direct and indirect development costs related to the development of our portfolio of product candidates. Advance payments for goods or services that will be used or rendered for future research and development activities are deferred and capitalized. Such amounts are recognized as expense when the related goods are delivered or the related services are performed. Research and development expenses include, among other items, personnel costs, including salaries and benefits, manufacturing costs, clinical, regulatory, and toxicology services performed by CROs, materials and supplies, and overhead allocations consisting of various administrative and facilities related costs.costs, as well as termination fees and other commitments associated with discontinued programs. Most of our manufacturing and clinical and preclinical studies are performed by third-party CROs. Costs for studies performed by CROs are accrued by us over the service periods specified in the contracts, and estimates are adjusted, if required, based upon our on-goingongoing review of the level of services actually performed.

Additionally, we have license agreements with third parties such as AECOM, IRL, and UAB, which require fees related to sublicense agreements or maintenance fees. We expense sublicense payments as incurred unless they are related to revenues that have been deferred, in which case the expenses are deferred and recognized over the related revenue recognition period. We expense maintenance payments as incurred.

Deferred collaboration expenses represent sub-licensesublicense payments paid to our academic partners upon receipt of consideration from various commercial partners, and other consideration paid to our academic partners for modification to existing license agreements. These deferred expenses would not have been incurred without receipt of such payments or modifications from our commercial partners and are being expensed in proportion to the related revenue being recognized. We believe that this accounting treatment appropriately matches expenses with the associated revenue.

We group our R&D expenses into two major categories: direct external expenses and indirect expenses. Direct expenses consist of compensation for R&D personnel and costs of outside parties to conduct laboratory studies, develop manufacturing processes and manufacture the product candidate, conduct and manage clinical trials, as well as other costs related to our clinical and preclinical studies. Additionally, direct expenses consist of those costs necessary to discontinue and close out a development program, including termination fees and other commitments. These costs are accumulated and tracked by active program. Indirect expenses consist of lab supplies and services, facility expenses, depreciation of development equipment and other overhead of our research and development efforts. These costs apply to work on non-active product candidates and our discovery research efforts.

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Stock-Based Compensation

All share-based payments, including grants of stock option awards and restricted stock unit awards, are recognized in our Consolidated Statements of Comprehensive Loss based on their fair values. Stock-based compensation cost is estimated at the grant date based on the fair value of the award and is recognized as expense on a straight-line basis over the requisite service period of the award. Determining the appropriate fair value model and the related assumptions for the model requires judgment, including estimating the life of an award, the stock price volatility, and the expected term. We utilize the Black-Scholes option-pricing model to value our stock option awards and recognize compensation expense on a straight-line basis over the vesting periods. The estimation of share-based payment awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from our current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. In addition, we have outstanding performance-based stock options and restricted stock units for which no compensation expense is recognized until “performance” hasis deemed to have occurred. Significant management judgment is also required in determining estimates of future stock price
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volatility and forfeitures to be used in the valuation of the options. Actual results, and future changes in estimates, may differ substantially from our current estimates.

Currency Hedge Agreement

In connection with our issuance

Interest Expense and Royalty Financing Obligations
The royalty financing obligations are eligible to be repaid based on royalties from net sales of ORLADEYO and BCX10013. Interest expense is accrued using the effective interest rate method over the estimated period each of the PhaRMA Notes, we entered into a foreign Currency Hedge Agreementrelated liabilities will be paid. This requires us to hedge certain risks associated with changes inestimate the total amount of future royalty payments to be generated from product sales over the life of the agreement. We impute interest on the carrying value of each of the Japanese yen relativeroyalty financing obligations and record interest expense using an imputed effective interest rate. We reassess the expected royalty payments each reporting period and account for any changes through an adjustment to the U.S. dollar. Undereffective interest rate on a prospective basis. The assumptions used in determining the Currency Hedge Agreement,expected repayment term of the debt and amortization period of the issuance costs requires that we havemake estimates that could impact the right to purchase dollars and sell yen at a ratecarrying value of 100 yen per dollar foreach of the liabilities, as well as the periods over which we may be required to pay a premium in each year from 2018 through 2020, provided the Currency Hedge Agreement remains in effect. A payment of $2.0 millionassociated issuance costs will be required if, on May 18amortized. A significant increase or decrease in forecasted net sales could materially impact each of the relevant year,liability balances, interest expense and the U.S. dollartime periods for repayment.
Income Taxes
The liability method is worth 100 yen or less as determined in accordance with the Currency Hedge Agreement. In conjunction with establishing the Currency Hedge Agreement, we will be required to post collateral to the counterparty, which may cause us to experience additional quarterly volatilityused in our financial results. We will not be required at any time to post collateral exceeding the maximum premium payments remaining payable under the Currency Hedge Agreement. As of September 30, 2017, the maximum amount of hedge collateral we may be required to post is $5.9 million.

The Currency Hedge Agreement does not qualifyaccounting for hedge accounting treatmentincome taxes. Under this method, deferred tax assets and therefore mark to market adjustments will be recognized in our Consolidated Statements of Comprehensive Loss. Mark to market adjustmentsliabilities are determined by quoted prices in marketsbased on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that are not actively traded and for which significant inputsexpected to be in effect when the differences are observable directly or indirectly, representing the Level 2 in the fair value hierarchy as defined by generally accepted accounting principles (“U.S. GAAP”). We are also requiredexpected to post collateral in connection with the mark to market adjustments based on defined thresholds. As of September 30, 2017, no collateral was posted under the agreement.

Tax

reverse.

We account for uncertain tax positions in accordance with U.S. GAAP. Significant management judgment is required in determining our provision for income taxes, deferred tax assets and liabilities and any valuation allowance recorded against net deferred tax assets. We have recorded a valuation allowance against substantially all potential tax assets, due to uncertainties in our ability to utilize deferred tax assets, primarily consisting of certain net operating losses carried forward, before they expire. The valuation allowance is based on estimates of taxable income in each of the jurisdictions in which we operate and the period over which our deferred tax assets will be recoverable.

Information Regarding Forward-Looking Statements

This filing contains forward-looking statements within the meaning

Beginning in fiscal year 2021, we began accruing for U.S. state taxes and foreign income taxes as a result of increased nexus in both U.S. state and foreign jurisdictions where historically we had no presence.
In addition, starting in 2022, amendments to Section 21E174 of the Securities Exchange ActInternal Revenue Code of 1934,1986, as amended which(“IRC”), no longer permit an immediate deduction for research and development expenditures in the tax year that such costs are subject toincurred. Instead, these IRC Section 174 development costs must now be capitalized and amortized over either a five- or 15-year period, depending on the “safe harbor” created in Section 21E. All statements other than statementslocation of historical facts contained in this filing are forward-looking statements. These forward-looking statements can generally be identified by the use of words such as “may,” “will,” “intends,” “plans,” “believes,” “anticipates,” “expects,” “estimates,” “predicts,” “potential,” the negative of these words or similar expressions. Statements that describe our future plans, strategies, intentions, expectations, objectives, goals or prospects are also forward-looking statements. Discussions containing these forward-looking statements are principally contained in “Business,” “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” as well as any amendments we make to those sections in filingsactivities performed. The new amortization period begins with the SEC. These forward-looking statements include,midpoint of any taxable year that IRC Section 174 costs are first incurred, regardless of whether the expenditures were made prior to or after July 1, and runs until the midpoint of year five for activities conducted in the United States or year 15 in the case of development conducted on foreign soil.
Recent Accounting Pronouncements
“Note 1—Significant Accounting Policies and Concentrations of Risk” in the Notes to Consolidated Financial Statements included in Part I, Item 1 of this report discusses accounting pronouncements recently issued or proposed but are not limited to, statements about:

the preclinical development, clinical development, commercialization, or post-marketing studies of our product candidates and products, including our HAE program, peramivir, galidesivir, and early stage discovery programs;
the potential funding from our contracts with NIAID/HHS and BARDA/HHS for the development of galidesivir;
the potential for government stockpiling orders of peramivir, additional regulatory approvals of peramivir or milestones, royalties or profit from sales of peramivir by us or our partners;
the potential use of peramivir as a treatment for H1N1, H5N1, and H7N9 or other strains of influenza;
the implementation of our business model, strategic plans for our business, products, product candidates and technology;

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our ability to establish and maintain collaborations or out-license rights to our product candidates;
plans, programs, progress and potential success of our collaborations, including SUL for peramivir, Mundipharma for forodesine and Shionogi and Green Cross for peramivir in their territories;

Royalty Sub’s ability to service its payment obligations in respect of the PhaRMA Notes;

the Currency Hedge Agreement entered into by us in connection with the issuance by Royalty Sub of the PhaRMA Notes;
the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology;
our ability to operate our business without infringing the intellectual property rights of others;
estimates of our expenses, revenues, capital requirements, annual cash utilization, and our needs for additional financing;
our ability to continue as a going concern;
the timing or likelihood of regulatory filings or regulatory agreements, deferrals, and approvals;
our ability to raise additional capital to fund our operations or repay our recourse debt obligations;
our ability to comply with the covenants as set forth in the agreements governing our debt obligations;
our financial performance; and
competitive companies, technologies and our industry.

These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievementsyet required to be materially different from any future results, performance or achievements expressed or implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed under “Risk Factors.” Any forward-looking statement reflects our current views with respect to future events and is subject to these and other risks, uncertainties and assumptions relating to our operations, results of operations, industry and future growth. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomes available in the future.

adopted.

Item 3.    Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Risk

We arewere subject to interest rate risk on our investment portfolio and borrowings under our fixed-interest rate PhaRMA NotesAthyrium Credit Agreement through its payoff and our variable-interest rate Senior Credit Facility.termination on April 17, 2023 and, subsequent to that date, the Pharmakon Loan Agreement. The interest rate applicable to our borrowingsAthyrium Term Loans under the PhaRMA NotesAthyrium Credit Agreement accrued interest each quarter at a rate equal to the three-month LIBOR rate, which was capped to be no less than 1.75% and no more than 3.50% (“LIBOR”), plus 8.25% or, for each quarterly interest period in which a PIK Interest Payment is fixed at 14% and the Senior Credit Facility bears a floating interest rate based on LIBOR. Increasesmade, LIBOR plus 10.25%. Accordingly, increases in interest rates could therefore increasehave increased the associated interest payments that we arewere required to make on the Senior Credit Facility.Athyrium Term Loans. As of September 30, 2017, our Senior Credit Facility hadMarch 31, 2023, interest was accrued at an interesteffective rate of 9.2%.

11.88% on the $200.0 million borrowings under the Athyrium Credit Agreement. The Pharmakon Loan Agreement uses the 3-month Secured Overnight Financing Rate (“SOFR”) as the initial benchmark rate.

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We invest in marketable securities in accordance with our investment policy. The primary objectives of our investment policy are to preserve capital, maintain proper liquidity to meet operating needs and maximize yields. Our investment policy specifies credit quality standards for our investments and limits the amount of credit exposure to any single issue, issuer or type of investment. We place our excess cash with high credit quality financial institutions, commercial companies, and government agencies in order to limit the amount of credit exposure. Some of the securities we invest in may have market risk. This means that a change in prevailing interest rates may cause the principal amount of the investment to fluctuate.

Our investment exposure to market risk for changes in interest rates relates to the increase or decrease in the amount of interest income we can earn on our portfolio, changes in the market value due to changes in interest rates and other market factors as well as the increase or decrease in any realized gains and losses. Our investment portfolio includes only marketable securities and instruments with active secondary or resale markets to help ensure portfolio liquidity. A hypothetical 100 basis point increase or decrease in interest rates along the entire interest rate yield curve would not significantly affect the fair value of our interest sensitive financial instruments, including our borrowings, but may affect our future earnings and cash flows. We generally have the ability to hold our fixed-income investments to maturity and, therefore, do not expect that our operating results, financial position or cash flows will be materially impacted due to a sudden change in interest rates. However, our future investment income may fall short of expectations due to changes in interest rates, or we may suffer losses in principal if forced to sell securities which have declined in market value due to changes in interest rates or other factors, such as changes in credit risk related to the securities’ issuers. To minimize this risk, we schedule our investments to have maturities that coincide with our expected cash flow needs, thus avoiding the need to redeem an investment prior to its maturity date. Accordingly, we do not believe that we have material exposure to interest rate risk arising from our investments. Generally, our investments are not collateralized. We have not realized any significant losses from our investments.

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We do not use interest rate derivative instruments to manage exposure to interest rate changes. We ensure the safety and preservation of invested principal funds by limiting default risk, market risk and reinvestment risk. We reduce default risk by investing in investment grade securities.

Foreign Currency Risk

The majority

Most of our transactions occurrevenues and expenses are denominated in U.S. dollarsdollars. Our commercial sales in Europe are primarily denominated in Euros and the British Pound. We also had other transactions denominated in foreign currencies during the three months ended March 31, 2023, primarily related to operations in Europe, contract manufacturing and ex-U.S. clinical trial activities, and we expect to continue to do so. Our royalties from Torii are derived from Torii’s sales of ORLADEYO in Japan. Those sales are denominated in Japanese yen and converted into U.S. dollars for purposes of determining the royalty owed to us. Our limited foreign currency exposure relative to our European operations is to fluctuations in the Euro, British Pound, Swiss Franc, Danish Krone, and Swedish Krona. Additionally, we have initiated operations in Canada and have foreign currency exposure to the Canadian Dollar.
We do not anticipate that foreign currency transaction gains or losses will be significant at our current level of operations. However, transaction gains or losses may become significant in the future as we continue to expand our operations internationally. We have significant operating subsidiaries or significant investmentsnot engaged in foreign countries. Therefore,currency hedging during the three months ended March 31, 2023; however, we may do so in the future.
Inflation Risk
Inflation generally impacts us by potentially increasing our operating expenses, including clinical trial costs and selling activities. We do not believe that inflation has had a material impact on our business or results of operations during the periods for which the condensed consolidated financial statements are not subject to significant foreign currency exchange riskpresented in our normal operations.

In connection with the issuance by Royalty Sub of the PhaRMA Notes, we entered into a Currency Hedge Agreement to hedge certain risks associated withthis report. Significant adverse changes in the valueinflation could negatively impact our future results of the Japanese yen relative to the U.S. dollar. Under the Currency Hedge Agreement, we are required to post collateral based on our potential obligations under the Currency Hedge Agreement as determined by periodic mark to market adjustments. Provided the Currency Hedge Agreement remains in effect, we may be required to pay an annual premium in the amount of $2.0 million from May 2018 through May 2020. Such payment will be required if, in May of the relevant year, the spot rate of exchange for Japanese yen-U.S. dollars (determined in accordance with the Currency Hedge Agreement) is such that the U.S. dollar is worth 100 yen or less.

operations.

Item 4.    Controls and Procedures

We maintain a set of disclosure controls and procedures that are designed to ensure that information relating to BioCryst Pharmaceuticals, Inc.the Company required to be disclosed in our periodic filings under the Exchange Act is recorded, processed, summarized and reported in a timely manner under the Exchange Act. We carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of September 30, 2017,March 31, 2023, the Company’s disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in the reports filed or submitted by it under
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the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and include controls and procedures designed to ensure that information required to be disclosed by the Company in such reports is accumulated and communicated to the Company’s management, including the Chief Executive Officer and Chief Financial Officer of the Company, as appropriate to allow timely decisions regarding required disclosure.

There have been no changes in our internal control over financial reporting that occurred during the quarter ended September 30, 2017March 31, 2023 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1A.    RISK FACTORS

An investment in our stock involves risks. You should carefully read this entire report and consider the following uncertainties and risks, which may adversely affect our business, financial condition liquidity, prospects or results of operations, along with all of the other information included in our other filings with the Securities and Exchange Commission,SEC, before deciding to buymaking an investment decision regarding our common stock.

Risks Relating to Our Business

Risks Relating to COVID-19
Our business, operations, clinical development or commercialization plans and timelines, and access to capital could be adversely affected by the effects of the ongoing COVID-19 pandemic on us or on third parties with whom we conduct business, including without limitation our development partners, manufacturers, CROs, and others, as well as on the regulatory and government agencies with whom we work.
The global COVID-19 pandemic continues to affect the United States and global economies, and could cause disruptions to our business, operations, and clinical development or commercialization plans and timelines, as well as the business and operations of third parties with whom we conduct business. For example, government orders and evolving business policies and procedures have impacted and may continue to impact, among other things: (1) our personnel and those of third parties on whom we rely, including our development partners (such as Torii), manufacturers, CROs, and others; (2) the conduct of our current and future clinical trials and commercial interactions; and (3) the operations of the FDA, European Medicines Agency (“EMA”), Japanese Pharmaceuticals and Medical Devices Agency (“PMDA”), and other health and governmental authorities, which could result in delays of reviews and approvals, including as we continue to expand internationally and bring ORLADEYO to additional global markets.
If our operations or those of third parties with whom we conduct business are impaired or curtailed as a result of these events, the development and commercialization of our products and product candidates could be stopped or delayed, or the costs of such development and commercialization activities could increase, any of which could have a material adverse impact on our business. For example, our suppliers or other vendors may be unable to meet their obligations to us or perform their services as expected as a result of the COVID-19 pandemic or other health epidemics. In such circumstances, we may not be able to enter into arrangements with alternative suppliers or vendors or do so on commercially reasonable terms or in a timely manner. Such delays could adversely impact our ability to meet our desired clinical development and any commercialization timelines. Although we carefully manage our relationships with our suppliers and vendors, there can be no assurance that we will not encounter challenges or delays in the future or that these challenges or delays will not have an adverse impact on our business, financial condition and prospects.
In addition, our clinical trials have been and may continue to be affected by the COVID-19 pandemic. For example, the acceleration of COVID-19 slowed the startup of the inadequate C5 responder cohorts in our complement oral Factor D program and, as a result, delayed the reporting of related data in 2020. Clinical site initiation and patient enrollment may be delayed due to prioritization of hospital resources toward the COVID-19 pandemic or concerns among patients about participating in clinical trials during a pandemic. Some patients may have difficulty following certain aspects of clinical trial protocols if quarantines impede patient movement or interrupt healthcare services. Similarly, our inability to successfully recruit and retain patients and principal investigators and site staff who, as healthcare providers, may have heightened exposure to COVID-19 or experience additional restrictions by their institutions, city, or state could adversely impact our clinical trial operations.
If global health concerns prevent the FDA, EMA, PMDA or other regulatory authorities from conducting their inspections, reviews, or other regulatory activities, it could significantly impact the ability of such authorities to timely review and process our regulatory submissions, which could have a material adverse effect on our business and clinical development and commercialization plans and timelines.
Where possible and practical, we continue to provide work-from-home flexibility for our employees, which could negatively impact productivity, disrupt our business and delay our clinical programs and timelines. We cannot accurately predict the impact on operations of any return-to-the-office plan on our business or on third parties with whom we conduct business. Our business may be negatively impacted in the event that large numbers of employees or key employees do not comply with any applicable protocols. These and similar, and perhaps more severe, disruptions to our operations could negatively impact our business, operating results and financial condition.
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The spread of COVID-19, which has caused a broad impact globally, could also materially affect our access to capital. While the future economic impact brought by, and the duration of, COVID-19 may be difficult to assess or predict, the pandemic could result in further significant disruption of global financial markets, reducing our ability to access the equity or debt capital markets or obtain other sources of capital, which could negatively affect our liquidity. In addition, a recession or market correction could materially affect our business and the value of our common stock.
The global pandemic continues to evolve, with the ultimate impact of the COVID-19 pandemic or a similar health epidemic being uncertain and subject to change. These effects could be material, and we will continue to monitor the COVID-19 situation closely. We do not yet know the full extent and magnitude of the impacts that COVID-19 has had or will have on our business, the healthcare system, the pharmaceutical industry, or the global economy. In addition, the COVID-19 pandemic could have the effect of heightening many of the other risks described below.
Financial and Liquidity Risks
We have incurred losses since our inception, expect to continue to incur such losses, and may never be profitable.

Since our inception, we have not achieved sustained profitability. We expect to incur additional losses for the foreseeable future, and our losses could increase as our research and development efforts and commercial activities progress. We expect that such losses will fluctuate from quarter to quarter and that losses and fluctuations may be substantial.

To become profitable, we, or our collaborative partners, must successfully manufacture and develop products and product candidates, receive regulatory approval,approvals, and successfully commercialize our products and/or enter into profitable agreementscommercialization arrangements with other parties. It could be several years, if ever,take longer than expected before we receive, or we may never receive, significant revenue from any current or future license agreements or significant revenues directly from product sales.

Even if we are able to successfully commercialize our existing products, or to develop or otherwise acquire new commercially viable products, certain obligations we have to third parties, including, without limitation, our obligation to pay RPI and OMERS, as applicable, royalties on certain revenues from ORLADEYO and BCX10013 under the Royalty Purchase Agreements, may reduce the profitability of such products.

Because of the numerous risks and uncertainties associated with developing our product candidates, launching new products, and their potential for commercialization, we are unable to predict the extent of any future losses. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. If we are unable to achieve and sustain profitability, the market value of our common stock will likely decline.

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We may need to raise additional capital in the future. If we are unable to raise capital as and when needed, we may need to adjust our operations.

We have sustained operating losses for the majority of our corporate history and expect that our 2023 expenses will exceed our 2023 revenues. We expect to continue to incur operating losses and negative cash flows unless and until revenues reach a level sufficient to support ongoing operations.
In order to continue future operations, progress our drug discovery and development programs, and commercialize our current products and product candidates, we may be required to raise additional capital in the future. In addition to seeking strategic partnerships and transactions, we may access the equity or debt markets, incur additional borrowings, pursue royalty or other monetization transactions, or seek other sources of funding to meet liquidity needs at any time, including to take advantage of attractive opportunities in the capital markets. Additional funding, whether through additional sales of securities, additional borrowings, royalty or other monetization transactions, collaborative arrangements with partners, including corporate partners such as Torii, or from other sources, may not be available when needed or in a form or on terms acceptable to us. The issuance of preferred or common stock or convertible securities, with terms and prices significantly more favorable than those of our currently outstanding common stock, could have the effect of diluting or adversely affecting the holdings or rights of our existing stockholders. Additional borrowings may subject us to more restrictive covenants than are currently applicable to us under the Pharmakon Loan Agreement. In addition, collaborative arrangements may require us to transfer certain material rights to our corporate partners. Insufficient funds or lack of an acceptable partnership may require us to delay, scale-back or eliminate certain of our research and development programs. See “Risks Relating to Our Business—Risks Relating to Drug Development and Commercialization—If we fail to obtain additional financing or acceptable partnership arrangements as and when needed, we may be unable to complete the development and commercialization of our products and product candidates or continue operations” in this section for further discussion of the capital requirements for our development and commercialization efforts.
Our liquidity needs will largely be determined by the success of operations in regard to the commercialization of our products, particularly ORLADEYO, and the progression of our product candidates in the future. Our plans for managing
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our liquidity needs primarily include controlling the timing and spending on our research and development programs, raising additional funds as discussed herein, and commercializing our approved products. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources” in Part I, Item 2 of this report for additional information about our liquidity needs, capital requirements, potential funding alternatives, and adequacy of available funds.
There can be no assurance that any of our plans will be successful or that additional capital will be available to us on reasonable terms, or at all, when needed. If we are unable to obtain sufficient additional capital as and when needed, we may be forced to adjust or curtail our operations; delay, reduce, or stop ongoing clinical trials or commercialization efforts; cease operations altogether; or file for bankruptcy.
Risks Relating to Drug Development and Commercialization
Our success depends upon our ability to manage our product candidate pipeline, advance our productsproduct candidates through the various stages of development, especially through the clinical trial process.

process, and to receive regulatory approvals for the commercial sale of our product candidates.

The success of our business depends upon our ability to manage our product candidate pipeline, including through expanding the pipeline, as appropriate, through our internal identification and discovery of product candidates or otherwise in-licensing or acquiring products or product candidates and integrating them into our business effectively and efficiently; advancing our product candidates through the various stages of development; and receiving regulatory approvals for the commercial sale of our product candidates. Identifying, selecting, and in-licensing or acquiring products or product candidates requires substantial expense and technical and financial expertise, and if we are unable to effectively manage our pipeline and integrate viable products or product candidates into our business on acceptable terms, or at all, our business and drug development efforts would suffer.
To receive the regulatory approvals necessary for the commercial sale of our product candidates, we or our partners must demonstrate through preclinical studies and clinical trials that each product candidate is safe and effective. The development process and related regulatory process are complex and uncertain. The preclinical and clinical development of our product candidates is susceptible to the risk of failure inherent at any stage of drug development, including failure to demonstrate efficacy and safety, failure to demonstrate adequate benefit-risk balance, failure to achieve a commercially attractive and competitive product label, failure to achieve approval in commercially attractive indications, the occurrence of adverse events that are severe or medically or commercially unacceptable, our or our partners’ failure to comply with trial protocols, applicable regulatory requirements, or industry standards, or a determination by the FDA or any comparable foreign regulatory authority that a product candidate may not continue development or be approved in accordance with our development plans or at all. We cannot guarantee that any preclinical studies and clinical trials will be conducted as planned or completed on schedule, if at all, or that the results of such trials will be sufficient to support regulatory approval for our product candidates.
Progression of our product candidates through the clinical development process is dependent upon our trials indicating that our product candidates have adequate safety and efficacy in the patients being treated by achieving pre-determined safety and efficacy endpoints according to the clinical trial protocols, as well as an adequate benefit-risk profile. Failure to achieve any of these endpoints or to show adequate benefit-risk profile in any of our programs, including our complement program (inclusive of BCX10013) and our other rare disease product candidates, could result in delays in or modifications to our trials or require the performance of additional unplanned trials. For example, recent dose-related observations in an ongoing BCX10013 nonclinical study will delay the clinical program. If any of our product candidates is associated with adverse events or undesirable side effects or has properties that are unexpected, we may need to abandon development or limit development of that product candidate to certain uses or subpopulations in which the undesirable side effects or other characteristics are less prevalent, less severe or more acceptable from a benefit-risk perspective. Product candidates that initially show promise in clinical or preclinical testing could later be found to be associated with or to cause undesirable or unexpected side effects that could result in substantial modifications or delays in the development plans for our product candidates, significant unexpected costs, or the termination of programs, such as we experienced with BCX9930 in 2022 prior to discontinuing its development later that year.
In addition, the development plans for our product candidates, including our clinical trials (inclusive of BCX10013), may not be adequately designed or executed, which could negatively affect the outcome and analysis of study results. Because of the cost and duration of clinical trials, we have decided in the past, and may in the future decide, to discontinue development of product candidates for various reasons, including, but not limited to, that they are unlikely to show good
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favorable results in the clinical trials, unlikely to help advance a product to the point of a meaningful collaboration, or unlikely to have reasonable commercial potential. We may suffer significant setbacks
Undesirable or inconclusive data in pivotal pre-clinicalour preclinical studies and clinical trials (e.g. galidesivir, BCX7353, other kallikrein inhibitors and our other rare disease product candidates), even after earlier clinical trials show promising results. The development of our product candidates, including our clinical trials, may not be adequately designed or executed, which could affect the potential outcome and analysis of study results. Any of our product candidates may produce undesirable side effects in humans. The pre-clinical and clinical data from our product candidates could cause us or regulatory authorities to interrupt, delay, modify or halt preclinical or clinical trials of a product candidate. Undesirable or inconclusive data or side effects in humans could also result in the FDA or foreign regulatory authorities (including, e.g., the EMA, the Ministry of Health, Labor and Welfare (“MHLW”) in Japan or the United Kingdom’s Medicines and Healthcare Regulatory Agency (“MHRA”)) refusing to approve thea product candidate for any targeted indications.indications or imposing restrictions or warnings that could impact development or the ultimate commercial viability of a product candidate. In addition, the FDA or otherforeign regulatory agenciesauthorities may determine that study data from our product candidates necessitates additional studies or study designs which differ from our planned development strategy, and such regulatory agenciesauthorities may also require patient monitoring and testing or may implement restrictions or other conditions on our development activities, any of which could materially impact the cost and timing of our planned development strategy. We, our partners, the FDA, or foreign regulatory authorities have previously, and may again in the future, pause enrollment in, suspend, or terminate clinical trials at any time if we or they believe the trial participants face unacceptable health risks. Clinical trials may fail to demonstrate that our product candidates are safe or effective and have acceptable commercial viability. Regulatory authorities may interrupt, delay or halt clinical trials for a product candidate for any number of reasons.

Our ability to successfully complete the clinical trialsdevelopment process successfully is dependent upon many factors, including, but not limited to:

our ability to find suitable clinical sites and investigators to enroll patients;
the ability to maintain contact with patients to provide complete data after treatment;
our product candidates may not prove to be either safe or effective;
clinical protocols or study procedures may not be adequately designed or followed by the investigators;
formulation improvements may not work as expected, which could negatively impact commercial demand for our product candidates;
manufacturing or quality control problems could affect the supply of product candidates for our trials; and
delays or changes in our planned development strategy, the regulations or guidelines, or other unexpected conditions or requirements of government agencies.

our or our partners’ ability to secure suitable clinical sites and investigators and to enroll and maintain an adequate number of patients on a timely basis or at all;
patients that enroll in a clinical trial may not comply with the clinical trial protocols or maintain contact with investigators to provide complete data during and after treatment;
our product candidates may not prove to be either safe or effective or may produce unfavorable or inconclusive results;
we or our partners may decide, or be required by regulatory authorities, to pause enrollment in, suspend, or terminate clinical research for various reasons, including a finding that the participants are being exposed to unacceptable health risks, undesirable side effects or other unexpected characteristics of the product candidate, noncompliance with regulatory requirements or their standards of conduct, or findings of undesirable effects caused by a chemically or mechanistically similar product or product candidate;
regulatory authorities may disagree with our or our partners’ clinical trial protocols or our or their interpretation of data from preclinical studies and clinical trials;
clinical protocols or study procedures may not be adequately designed or followed by the investigators;
formulation improvements may not work as expected, which could negatively impact commercial demand for our product candidates;
regulatory authorities may fail to approve or subsequently find fault with the manufacturing processes or facilities of third-party manufacturers with which we or our partners enter into agreements for clinical and commercial supplies;
the supply or quantity of raw materials or manufactured product candidates or other materials necessary to conduct development activities may be insufficient, inadequate, or unavailable at an acceptable cost, and we or our partners may experience interruptions in supply;
our or our partners’ development plans may be delayed or changed as a result of changes in development strategy, the impact of new or different regulations, requirements, and guidelines, or other unexpected events or conditions;
the cost of preclinical studies and clinical trials may be greater than we anticipate;
we or our third-party contractors, including those manufacturing our product candidates or components or ingredients thereof, or conducting clinical trials or laboratory testing on our or our partners’ behalf, may fail to comply with regulatory requirements and industry standards or meet contractual obligations in a timely manner or at all; and
the impact of the ongoing COVID-19 pandemic on one or more of the foregoing factors.
Clinical trials are lengthy and expensive. Many of the factors listed above could result in increased clinical development costs or longer clinical development times for any of our programs. We orand our partners incur substantial expense for, and devote significant time to, preclinical testing and clinical trials, yet we cannot be certain that the tests and trials will ever result in the commercial sale of a product. For example, clinical trials require adequate supplies of drug and sufficient patient enrollment. Lack of adequate drug supply or delays in patient enrollment, including for APeX-2, APeX-S and ZENITH-1, can result in increased costs and longer development times. Even if we or our partners successfully complete clinical trials for our product candidates, we or our partners might not file the required regulatory submissions in a timely manner andor may not receive regulatory approval for the product candidates.

We focus on rare diseases, which may create additional risks and challenges.

Because we focus on developing drugs as treatments for rare diseases, we may seek orphan drug, breakthrough therapy or fast track designations for our product candidates in the United States or the equivalent designations elsewhere in the world. Often, regulatory agencies have broad discretion in determining whether or not to grant such designations. We cannot guarantee that we will be able to receive orphan drug status from the FDA or equivalent regulatory designations elsewhere. We also cannot guarantee that we will obtain breakthrough therapy or fast track designation, which may provide certain potential benefits such as more frequent meetings with the FDA to discuss the development plan, intensive guidance on an efficient drug development program, and potential eligibility for rolling review or priority review. Even if we are successful in obtaining any such designation by the FDA or other regulatory agency for our product candidates, such designations may not lead to faster development or regulatory review or approval, and it does not increase the likelihood that our product candidates will receive marketing approval. We may not be able to obtain or maintain such designations for our product candidates, and our competitors may obtain these designations for their product candidates, which couldin either case would adversely impact or preclude our ability to developgenerate any revenues from product sales or licensing arrangements. In addition, any product candidate, if approved, may be subject to restrictions on labeling, marketing, distribution, prescribing, and commercialize our product candidates or compete with such competitors,use, which maycould adversely impact our business, financial condition or resultsthe sales of operations.

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such product.
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Although we have received Sakigake designation for BCX7353 in Japan, we may not experience a faster development, review or approval process compared to the conventional process.

Our clinical trials may not adequately show that our product candidates are safe or effective.

Progression


If our development collaborations with third parties, such as our development partners, contractors and contract research organizations, fail, the development of our product candidates will be delayed or stopped.

We rely heavily upon third parties for many important stages of our product candidate development, including, but not limited to:

discovery of compounds that cause or enable biological reactions necessary for the progression of the disease or disorder, called enzyme targets;
licensing or designing of enzyme inhibitors for development as product candidates;
execution of certain preclinical studies and late-stage development for our compounds and product candidates;
management of our clinical trials, including medical monitoring and data management;
execution of additional toxicology studies that may be required to obtain approval for our product candidates;
formulation improvement strategies and methods; and
manufacturing the starting materials and drug substance required to formulate our products and the product candidates to be used in our clinical trials, toxicology studies and any potential commercial product.

discovery of natural proteins that cause or enable biological reactions necessary for the progression of the disease or disorder, called enzyme targets;
execution of certain pharmacology preclinical studies and late-stage development for our compounds and product candidates;
management of our phase 1, 2 and 3 clinical trials, including medical monitoring, laboratory testing, and data management;
execution of toxicology studies that may be required to obtain approval for our product candidates;
formulation improvement strategies and methods;
manufacturing the starting materials and drug substance required to formulate our products and the product candidates to be used in our clinical trials, toxicology studies and any potential commercial product; and
management of certain regulatory interactions outside of the United States.
Our failure to engage in successful collaborations at any one of these stages would greatly impact our business. If we do not license enzyme targets or inhibitors from academic institutions or from other biotechnology companies on acceptable terms, or at all, our drug development efforts would suffer. Similarly, if the contract research organizations or third-party contractors that conduct our initial or late-stage clinical trials, conduct our toxicology or other studies, manufacture our starting materials, drug substance and product candidates, provide laboratory testing or manageother services (including clinical operation services) in connection with our clinical trials, provide medical writing services, or assist with our regulatory function breachedbreach their obligations to us, or perform their services inconsistent with industry standards, and not in accordanceor fail to comply with the required regulations,regulatory requirements, this would delay or prevent both the development of our product candidates and the availability of any potential commercial product.

If we lose our relationship with any one or more of these parties, we could experience a significant delay in both identifying another comparable provider and then contracting for its services. We may be unable to retain an alternative provider on reasonable terms, if at all. Even if we locate an alternative provider, it is likely that this provider may need additional time to respond to our needs and may not provide the same type or level of service as the original provider. In addition, any provider that we retain will be subject to applicable FDA current Good Laboratory Practices, (“cGLP”), current Good Manufacturing Practices (“cGMP”) and current Good Clinical Practices, (“cGCP”), and comparable foreign standards. We do not have control over compliance with these regulations by these providers. Consequently, if these practices and standards are not adhered to by these providers, the development and commercialization of our product candidates could be delayed. If any of the foregoing risks areis realized, our business, financial condition and results of operations could be materially adversely affected.

If we fail to obtain additional financing or acceptable partnership arrangements as and when needed, we may be unable to complete the development and commercialization of our products and product candidates or continue operations.
As our programs advance, our costs are likely to increase. Our current and planned discovery, development, approval, and commercialization efforts will require significant capital. Our expenses, revenues and cash utilization rate could vary significantly depending on many factors, including: our ability to effectively manage our product candidate pipeline; our ability to obtain regulatory approvals for our product candidates, including BCX10013; our ability to maintain regulatory approvals for, successfully commercialize, and achieve market acceptance of our products, including ORLADEYO; our ability to raise additional capital as and when needed; the amount of funding we receive from partnerships with third parties for the development and commercialization of our products and product candidates (including our collaboration with Torii); the commercial success of our products achieved by our partners; the progress and results of our current and proposed clinical trials for our product candidates; and the progress made in the manufacture of our lead products and the progression of our other programs.
In order to continue future operations, progress our drug discovery and development programs, and commercialize our current products and product candidates, we may be required to raise additional capital. Our ability to raise additional capital as and when needed, or at all, may be limited and may greatly depend upon our success in commercializing and achieving market acceptance of ORLADEYO and the success of our current drug development programs, including the progress, timeline and ultimate outcome of the development programs (including, but not limited to, formulation progress, long-term human safety studies, clinical trial investigations, and carcinogenicity, drug-drug interaction, toxicity, or other
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required studies) for our complement program (including BCX10013) for diseases of the complement system and other rare disease product candidates, as well as any post-approval studies for our products. In addition, constriction and volatility in the equity and debt markets, including as a result of the impacts of COVID-19, rising inflation, increased interest rates, or disruption or instability in the banking industry, may restrict our future flexibility to raise capital as and when such needs arise. See “Risks Relating to Our Business—Financial and Liquidity Risks—We may need to raise additional capital in the future. If we are unable to raise capital as and when needed, we may need to adjust our operations” in this section and “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources” in Part I, Item 2 of this report for additional information about our liquidity risks and capital requirements.
Furthermore, we have exposure to many different industries, financing partners and counterparties, including commercial banks, investment banks and partners (which include investors, licensing partners, distribution partners, and others), which may be unstable or may become unstable in the current economic and political environment, including as a result of the impacts of COVID-19, rising inflation, increased interest rates, disruption or instability in the banking industry, or the conflict in Ukraine. Any such instability may impact these parties’ ability to fulfill contractual obligations to us, or it might limit or place burdensome conditions upon future transactions with us. Also, it is possible that suppliers may be negatively impacted. Any such unfavorable outcomes in our current programs or unfavorable economic conditions have in the past and could again place severe downward pressure on the price of our common stock and may decrease opportunities to raise capital in the capital or credit markets, and further could reduce the return available on invested corporate cash, which, if severe and sustained, could have a material and adverse impact on our results of operations and cash flows and limit our ability to continue development and commercialization of our products and product candidates.
If we or our partners do not obtain regulatory approvals for our product candidates or maintain regulatory approvals for our products, we or our partners will not be able to commercialize and sell these products and potential products, which would significantly harm our business because we will receive no revenue.
We or our partners must obtain regulatory approvals before marketing or selling our products. If the FDA or a comparable foreign regulatory authority delays or denies regulatory approval of one of our product candidates, or revokes approval of a previously approved product, we would be unable to market or sell the product in the applicable jurisdiction and would not receive revenue from sales or licensing arrangements related thereto, which could have a material and adverse impact on our business.
The process of preparing for and obtaining regulatory approval in any jurisdiction may be lengthy and expensive, and approval is never certain. Because of the risks and uncertainties inherent to the development process, including risks and uncertainties related to the impact of COVID-19, our product candidates could take a significantly longer time to gain regulatory approval than we expect or may never gain approval. As discussed under “Risk Factors—Risks Relating to Our Business—Risks Relating to Drug Development and Commercialization—Our success depends upon our ability to manage our product candidate pipeline, advance our product candidates through the various stages of development, especially through the clinical trial process, and to receive regulatory approvals for the commercial sale of our product candidates,” we and our partners have experienced, and may again in the futureexperience, any number of unfavorable outcomes during or as a result of preclinical studies and clinical trials that could delay or prevent regulatory approval of our product candidates, or negatively impact our management’s credibility, our value and our operating results.
Even if the FDA or foreign regulatory authorities approve a product candidate, the approval may limit the indicated uses for a product candidate, impose other restrictions on the product candidate, and/or may require post-approval studies that could impair the commercial viability of a product candidate. Even upon any approval to market our potential products, whether in the United States or internationally, we will continue to be subject to extensive regulatory requirements.
Our failure to comply with existing or future regulatory requirements for regulatory approval, or our loss of, or changes to, previously obtained approvals, could impair our ability to generate any revenues from product sales or licensing arrangements, which could have a material adverse effect on our business, financial condition, and results of operations.
We focus on rare diseases, which may create additional risks and challenges.
Because we focus on developing drugs as treatments for rare diseases, we may seek orphan drug, breakthrough therapy or fast track designations for our product candidates in the United States or the equivalent designations elsewhere in the world. Often, regulatory authorities have broad discretion in determining whether or not to grant such designations. We cannot guarantee that our product candidates will receive orphan drug status from the FDA or equivalent designations
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from other regulatory authorities. We also cannot guarantee that we will receive breakthrough therapy, fast track, or equivalent designations, which provide certain potential benefits such as more frequent meetings with the applicable regulatory authorities to discuss development plans, intensive guidance on efficient drug development programs, and potential eligibility for rolling review or priority review. Even if we are successful in obtaining any such designations for our product candidates, such designations may not lead to faster development or regulatory review or approval and do not increase the likelihood that our product candidates will receive marketing approval. We may not be able to obtain or maintain these designations for our product candidates that receive them, and our competitors may obtain these designations for their product candidates, which could impact our ability to develop and commercialize our products and product candidates or compete with such competitors, which may adversely impact our business, financial condition or results of operations.
The commercial viability of any approved product could be compromised if the product is less effective than expected, causes undesirable side effects that either were not previously identified or were worse than expected, or fails to achieve market acceptance within the medical community.
If, after obtaining regulatory approval of a product, we or others discover that the product is less effective than previously believed or causes undesirable side effects that either were not previously identified or were worse than expected, any of the following adverse events could occur:
regulatory authorities may withdraw their approval of, or impose marketing or manufacturing restrictions on, the product, or require us or our partners to create a medication guide outlining the risks of unidentified side effects for distribution to patients;
we or our partners may be required to recall the product, change the way the product is administered, conduct additional clinical trials, or be subject to civil or criminal penalties; and
the product may become less competitive and our reputation may suffer.
Even after receiving regulatory approval, any product could fail to gain sufficient, or any, market acceptance by physicians, patients, third-party payors, health authorities and others in the medical community. For example, physicians are often reluctant to switch their patients from existing therapies even when new and potentially more effective or convenient treatments enter the market. Further, patients often acclimate to the therapy that they are currently taking and do not want to switch unless their physicians recommend switching products or they are required to switch therapies due to lack of reimbursement for existing therapies. If an approved product does not achieve an adequate level of market acceptance, it may not generate significant revenues. The occurrence of any of the foregoing could have a material and adverse impact on our business.
If we fail to successfully commercialize or establish collaborative relationships to commercialize certain of our products and product candidates, or if any partner terminates or fails to perform its obligations under agreements with us, potential revenues from commercialization of our products and product candidates could be reduced, delayed or eliminated.
Our business strategy includes increasing the asset value of our product and product candidate portfolio. We believe this is best achieved by retaining full product rights or through collaborative arrangements with third parties as appropriate. As needed, potential third-party relationships could relate to preclinical development, clinical development, regulatory approval, marketing, sales, and distribution of our products and product candidates.
Currently, we have established collaborative relationships, including with Torii for the commercialization of ORLADEYO in Japan, with third-party distributors for ORLADEYO in certain other markets, and with each of Shionogi and Green Cross for the development and commercialization of peramivir. The process of establishing and implementing collaborative relationships is difficult, time-consuming and involves significant uncertainty, including:
we or our partners may seek to renegotiate or terminate our relationships due to unsatisfactory commercial, regulatory or clinical results, including post-approval clinical commitments, a change in business strategy, a change of control or other reasons;
our contracts for collaborative arrangements may expire;
the possibility that expiration or termination of collaborative relationships, such as those with certain of our distribution partners, may trigger repurchase obligations of the Company for unsold product held by our partners;
our partners may choose to pursue alternative technologies, including those of our competitors;
we have had in the past, and in the future may have, disputes with a partner that could lead to litigation or arbitration, which could result in substantial costs and divert the attention of our management;
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we do not have day-to-day control over the activities of our partners and have limited manufacturingcontrol over their decisions;
our ability to generate future event payments and royalties from our partners depends upon their abilities to establish the safety and efficacy of our product candidates, obtain regulatory approvals and achieve market acceptance of products developed from our product candidates;
we or our partners may fail to properly initiate, maintain or defend our intellectual property rights, where applicable, or a party may utilize our proprietary information in such a way as to invite litigation that could jeopardize or potentially invalidate our proprietary information or expose us to potential liability;
we or our partners may not devote sufficient capital or resources toward our products and product candidates; and
we or our partners may not comply with applicable government regulatory requirements.
If we or our partners fail to fulfill our responsibilities in a timely manner, or at all, our development and commercialization efforts related to that collaboration could be reduced, delayed or terminated, or it may be necessary for us to assume responsibility for activities that would otherwise have been the responsibility of our partner. If we are unable to establish and maintain collaborative relationships on acceptable terms, we may have to delay or discontinue further development or commercialization of one or more of our products or product candidates, undertake commercialization activities at our own expense or find alternative sources of funding. Any delay in the development or commercialization of our products and product candidates would severely affect our business, because if our product candidates do not progress through the development process or reach the market in a timely manner, or at all, or if our products do not achieve market success, we may not receive any revenues from product sales or licensing arrangements.
The results of our partnership with Torii may not meet our current expectations.
We have an agreement with Torii for the development and commercialization of ORLADEYO in Japan. Our ability to realize the expected benefits of this collaboration, including with respect to the receipt or amounts of royalty payments, is subject to a number of risks, including that the commercial potential of ORLADEYO may not meet our current expectations, we or Torii may fail to comply with our respective obligations under the Torii Agreement, and third parties may fail to perform their obligations to us on a timely basis or at all.
The Torii Agreement provides that we are entitled to receive tiered royalty payments, the amounts of which will depend upon the amount of annual net sales of ORLADEYO in Japan during each calendar year and other factors. We currently remain responsible for regulatory activities with respect to ORLADEYO in Japan, and we continue to use third parties to satisfy many of our obligations under the Torii Agreement, including, but not limited to, our regulatory and other responsibilities in Japan. If our interactions, or those of our third-party agents, are unsuccessful, we could fail to meet our obligations under the Torii Agreement, which could negatively impact the commercial success and the partnership, impact the economic benefit expected, or require additional development of ORLADEYO.
Torii may terminate the Torii Agreement under certain limited circumstances, including upon one year’s written notice after the sixth anniversary of the first commercial sale of ORLADEYO in Japan. If the Torii Agreement is terminated in connection with these provisions, or at all, we will no longer be entitled to receive any milestone or royalty payments thereunder, which could have a material adverse impact on our business and results of operations.
Torii has sole control over, and decision-making authority with respect to, commercialization activities for ORLADEYO for the prevention of HAE attacks in Japan, subject to oversight from a joint steering committee. Therefore, our receipt, and the amounts, of any royalty payments under the Torii Agreement are dependent upon Torii’s successful performance of such commercialization activities. In addition, competitive products and variations in patient demand, prescription levels, reimbursement determinations or other factors may limit the commercial potential of ORLADEYO in Japan, which could materially reduce the amount of any royalties we are entitled to receive under the Torii Agreement.
Under the Torii Agreement, we are responsible for supplying Torii with its required amounts of ORLADEYO for commercial sale. If, due to the failure of our third-party contract manufacturers to produce sufficient drug product, we fail to supply to Torii the required amounts of ORLADEYO, then Torii’s ability to successfully commercialize ORLADEYO in Japan could be materially impaired, and we may receive less royalty income under the Torii Agreement, or none at all.
Any of the foregoing risks could materially adversely impact our ability to perform our obligations under the Torii Agreement, which could materially reduce the economic benefits of the Torii Agreement to us and impair or result in the termination of our collaboration with Torii.
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There can be no assurance that our or our partners’ commercialization efforts, methods, and strategies for our products or technologies will succeed, and our future revenue generation is uncertain.
There can be no assurance that our or our partners’ commercialization efforts, methods and strategies will succeed. We may be unable to establish or sufficiently increase our sales, marketing and distribution capabilities for products we currently, or plan to, commercialize. Our ability to receive revenue from products we or our partners commercialize is subject to several risks, including:
we or our partners may fail to complete clinical trials successfully, or satisfy post-marketing commitments, sufficient to obtain and maintain regulatory agency marketing approval;
many competitors are more experienced and have significantly more resources, and their products could reach the market faster, be more cost effective or have a better efficacy or tolerability profile than our products and product candidates;
we may fail to employ a comprehensive and effective intellectual property strategy, which could result in decreased commercial value of our Company, our products and product candidates, or royalties associated with such products (e.g., the loss of the peramivir patent in Korea, which may result in a reduced royalty from Green Cross);
we may fail to employ a comprehensive and effective regulatory strategy, which could result in a delay or failure in commercialization of our products;
our and our partners’ ability to successfully commercialize our products is affected by the competitive landscape, which cannot be fully known at this time;
revenue from product sales depends on our ability to obtain and maintain favorable pricing;
reimbursement is constantly changing, which could greatly affect usage of our products;
future revenue from product sales will depend on our ability to successfully complete clinical studies, obtain regulatory approvals, and manufacture, market, distribute and commercialize our approved drugs; and
the impact of the COVID-19 pandemic on us or our partners.
In addition, future revenue from sales of ORLADEYO is subject to uncertainties and will depend on several factors, including the success of our and our partners’ commercialization efforts in the United States and elsewhere, the number of new patients switching to ORLADEYO, patient retention and demand, the number of physicians prescribing ORLADEYO, the rate of monthly prescriptions, reimbursement from third-party and government payors, the conversion of patients from our clinical trials and early access programs to commercial customers, our pricing strategy, and market trends.
Even if we are able to successfully commercialize our existing products, or to develop new commercially viable products, certain obligations we have to third parties, including, without limitation, our obligations to pay royalties on certain revenues from ORLADEYO and BCX10013 under the Royalty Purchase Agreements, may reduce the profitability of such products.
We have expanded, and may continue expanding, our development and regulatory capabilities and are implementing sales, marketing and distribution capabilities, and as a result, we may encounter difficulties in managing our growth, which could disrupt our operations.
We have experienced, and may continue to experience, significant growth in the number of our employees and the scope of our operations in the United States and internationally, particularly in the areas of drug development, regulatory affairs, sales, marketing, and distribution. To manage our growth, we must continue to implement and improve our managerial, operational and financial systems and processes, expand our facilities and continue to recruit and train qualified personnel. Due to our limited financial resources and the limited experience of our management team in managing a company with such growth, we may not be able to effectively manage the expansion of our operations, implement appropriate systems and processes in a timely manner or at all, or recruit, train, and retain qualified personnel. The expansion of our operations may lead to significant costs and may divert our management and business development resources. In addition, if a commercial launch for any product or product candidate for which we recruit a commercial team and establish marketing capabilities in any region is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. Any inability to manage growth could delay the execution of our business plans or disrupt our operations.
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We depend on third-party manufacturers tovendors in the manufacture and distribution of our product,products, product candidates and the materials for our products and product candidates. Often, especially early in the development and commercialization process, we have only one source for manufacturing. If we cannot rely on existing third-party manufacturers,vendors, we will be required to incur significant costs and potential delays in finding new third-party manufacturers.

vendors, which could adversely impact the development and commercialization timeframes for our products and product candidates.

We have limited manufacturing experience and only a small scale manufacturing facility. We currently rely upon a very limited number ofdepend on third-party vendors, including third-party manufacturers, todistributors, and specialty pharmacies, in the manufacture the materials required forand distribution of our product,products, product candidates, and most of the preclinicalmaterials for our products and clinical quantities of our product candidates. Often, especially in the early development and commercialization process, we have only one or limited sources for a particular product or service, such as manufacturing and/or distribution. We depend on these third-party manufacturersvendors to perform their obligations in a timely manner and in accordance with applicable governmental regulations. Our third-party vendors, particularly our third-party manufacturers and distributors, each of which may be the only manufacturervendor we have engaged for a particular product, product candidate, or service or in a particular region, may encounter difficulties with meeting our requirements, including, but not limited to, problems involving:

involving, as applicable:
insufficient resources being devoted in the manner necessary to satisfy our requirements within expected timeframes;
inconsistent production yields;

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product liability claims or recalls of commercial product;

product liability claims or recalls of commercial product;
difficulties in scaling production to commercial and validation sizes;
interruption of the delivery of materials required for the manufacturing process;
scheduling of plant time with other vendors or unexpected equipment failure;
potential catastrophes that could strike their facilities or have an effect on infrastructure;
difficulties in scaling production to commercial and validation sizes;
interruption of the delivery of materials required for the manufacturing process;
failure to distribute commercial supplies of our products to commercial vendors or end users in a timely manner;
scheduling of plant time with other vendors or unexpected equipment failure;
potential catastrophes that could strike their facilities or have an effect on infrastructure;
potential impurities in our drug substance or products that could affect availability of product for our clinical trials or future commercialization;
poor quality control and assurance or inadequate process controls;
failure to provide us with accurate or timely information regarding inventories, the number of patients who are using our products, or serious adverse events and/or product complaints regarding our products;
inability of third parties to satisfy their financial obligations to us or to others;
potential breach of the manufacturing or distribution agreement by the third party;
possible termination or nonrenewal of a critical agreement by the third party at a time that is costly or inconvenient to us; and
lack of compliance or cooperation with regulations and specifications or requests set forth by the FDA or other foreign regulatory agencies or local customs, particularly associated with ORLADEYO, BCX10013, peramivir and our early-stage compounds.
Many additional factors could cause production or distribution interruptions with the manufacture and distribution of any of our products and product candidates, including human error, natural disasters, pandemics, labor disputes or shortages, acts of terrorism or war, equipment malfunctions, raw material shortages or supply chain issues. If our commercial distribution partners are not able to satisfy our requirements within the expected timeframe, or are unable to provide us with accurate or timely information and data, including with respect to inventories and sales, serious adverse events, and/or product complaints, our business, including our commercialization efforts for and sales of ORLADEYO, may be at risk. In addition, if specialty pharmacy services, including our third-party call center services, which provide patient support and financial services, prescription intake and distribution, reimbursement adjudication, and ongoing compliance support, are not effectively managed, the continuance of our commercialization efforts for and sales of ORLADEYO may be delayed or compromised.
In addition, our drug substance or products that could affect availability of product for our clinical trials or future commercialization;
poor quality control and assurance or inadequate process controls; and
lack of compliance or cooperation with regulations and specifications or requests set forth by the FDA or other foreign regulatory agencies, particularly associated with peramivir, BCX7353, galidesivir and our early stage compounds.

These contract manufacturers may not be able to manufacture the materials required for our products or product candidates at a cost or in quantities necessary to make them commercially viable. We also have no control over whetherOur raw materials, drug substances, products, and product candidates are manufactured by a limited group of suppliers, including some at a single facility. If any of these suppliers were unable to produce these items, this could significantly impact our supply of products and product candidate material for further preclinical testing and clinical trials. Our third-party manufacturers breach their agreements with us or whether theyalso may terminate or decline to renew agreements with us. To date, our third-party manufacturers have metnot meet our manufacturing requirements, but they may not continue to do so.requirements. Furthermore, changes in the manufacturing process or procedure, including a change in the location where the drug is manufactured or a change of a third-party manufacturer, may require prior review and approval in accordance with the FDA’s cGMP and comparable foreign requirements. This review may be costly and time-consuming and could delay or prevent the launch of a product. The FDA or similar foreign regulatory agenciesauthorities may at any time implement new standards, or change their interpretation and enforcement of existing standards, for manufacture, packaging

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or testing of products. If we or our contract manufacturers are unable to comply, we or they may be subject to regulatory action, civil actions or penalties, any of which could be costly to the Companyus and could result in a delay or shortage of product.

If we are unable to maintain current manufacturing or other contractthird-party relationships, or enter into new agreements with additional manufacturersthird parties on commercially reasonable terms, or at all, or if there is poor manufacturing or distribution performance or failure to comply with any regulatory agency on the part of any of our third-party manufacturers,vendors, we may not be able to complete development of, seekobtain timely approval of, or market,commercialize our products and product candidates.

Our raw materials,

Commercialization of our products by us and our partners is subject to the potential commercialization risks described herein and numerous additional risks.Any potential revenue benefits to us, including in the form of milestone payments, royalties or other consideration are highly speculative.
Commercial success of our products is uncertain and is subject to all the risks and uncertainties disclosed in our other risk factors relating to drug substances,development and product candidates are manufacturedcommercialization. In addition, commercialization of our products is subject to further risks and may be negatively impacted by a number of factors, including, but not limited groupto, the following:
our products may not prove to be adequately safe and effective for market approval in markets other than the markets in which they are currently approved;
necessary funding for post-marketing commitments and further development of suppliers, including someour products may not be available timely, at a single facility. If anyall, or in sufficient amounts;
advances in competing products could substantially replace potential demand for our products;
government and third-party payors may not provide sufficient coverage or reimbursement, which would negatively impact the demand for our products;
we may not be able to supply commercial material to our partners and our partners may not be able to maintain or establish sufficient and acceptable commercial manufacturing, either directly or through third-party manufacturers;
the commercial demand and acceptance for our products by healthcare providers and by patients may not be sufficient to result in substantial product revenues to us or to our partners and may result in little to no revenue, milestone payments, or royalties to us;
effectiveness of these suppliers were unablemarketing and commercialization efforts for our products by us or our partners;
market satisfaction with existing alternative therapies;
perceived efficacy relative to produce these items, this could significantly impact other available therapies;
disease prevalence;
cost of treatment;
our supplypricing and reimbursement strategy may not be effective;
pricing and availability of product candidate material for further preclinical testingimports or alternative products;
marketing and clinical trials.

sales activities of competitors;

shifts in the medical community to new treatment paradigms or standards of care; and
relative convenience and ease of administration.
Risks Relating to Competing in Our Industry
We face intense competition, and if we are unable to compete effectively, the demand for our products if any, may be reduced.

The biotechnology and pharmaceutical industries are highly competitive and subject to rapid and substantial technological change. There are many companies seeking to develop products for the same indications that we currently target. Our competitors in the United States and elsewhere are numerous and include, among others, major multinational pharmaceutical and chemical companies and specialized biotechnology firms. Most of these competitors have greater resources than we do, including greater financial resources, larger research and development staffs and more experienced manufacturing, marketing, and manufacturingsales organizations. In addition, most of our competitors have greater experience than we do in conducting clinical trials and obtaining FDA and other regulatory approvals. Accordingly, our competitors may succeed in obtaining FDA or other regulatory approvals of product candidates more rapidly than we do.do for products that compete with our products. Companies that complete clinical trials, obtain required regulatory approvals, and commence commercial sale of their drugs before we do may achieve a significant competitive advantage, including patent and FDA exclusivity rights that would delay our ability to market products. We face, and will continue to face, competition in the commercialization of our products, licensing of potential product candidates for desirable disease targets, licensing of desirable product candidates, and development and marketing of our product candidates from academic institutions,
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government agencies, research institutions and biotechnology and pharmaceutical companies. Competition may also arise from, among other things:

other drug development technologies;
methods of preventing or reducing the incidence of disease, including vaccines; and
new small molecule or other classes of therapeutic agents.

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other drug development technologies;

methods of preventing or reducing the incidence of disease, including vaccines; and
new small molecule or other classes of therapeutic agents.
Developments by others may render our products, product candidates, or technologies obsolete or noncompetitive.

We received FDA approval of ORLADEYO, an oral, once-daily therapy for the prevention of HAE attacks in adults and pediatric patients aged 12 years and older, in December 2020. We subsequently received regulatory approvals for ORLADEYO in multiple markets. In addition, we are performing research on or developing products for the treatment of several other rare disorders,diseases, including HAE, as well as developing broad spectrum antivirals for use as medical countermeasures.diseases of the complement system. We expect to encounter significant competition for any of theour pharmaceutical products we are developing and plan to develop.product candidates. Companies that complete clinical trials, obtain required funding or government support, obtain required regulatory approvals and commence commercial sales or stockpiling orders of their products before their competitors may achieve a significant competitive advantage. Such isIn addition, various government entities throughout the case withworld may offer incentives, grants and contracts to encourage additional investment into certain preventative and therapeutic agents, which may have the current neuraminidase inhibitors marketed by GSKeffect of further increasing the number of our competitors and/or providing advantages to certain competitors. See “Business—Competition” in Part I, Item 1 of our most recent Annual Report on Form 10-K for further discussion of our competitors, competitive products or programs, and Roche for influenza; CINRYZE® , KALBITOR®the competitive conditions in these and FIRAZYR®, marketed by Shire Pharmaceuticals, Inc. (“Shire”) for HAE; BERINERT® and HAEGARDA® marketed by CSL for HAE; and RUCONEST® marketed by Pharming Healthcare, Inc. (“Pharming”) for HAE.

Further, several pharmaceutical and biotechnology firms have announced efforts in HAE and in other therapeutic areas where we have discovery and development efforts ongoing. Notably, prophylactic treatment for HAE is becoming increasingly competitive with the recent approval of CSL’s HAEGARDA, Shire’s positive Phase 3 data for the monoclonal antibody, lanadelumab, and Pharming’s completion of a Phase 2 HAE prophylaxis trial for RUCONEST. Additionally, Kalvista Pharmaceuticals, Inc. (KVD818) and Attune Pharmaceuticals, Inc. (ATN-249) have oral candidates for HAE prophylaxis in Phase 1 development. Therapeutic products with potentially promising data to treat Ebola include Mapp Biopharmaceutical, Inc.’s ZMapp (antibody-based) and Gilead Sciences, Inc.’s product currently under development (small molecule), both of which have been used in Ebola infected patients. Shionogi also recently announced positive Phase 3 data for S033188, an oral treatment for influenza. areas.

If one or more of our competitors’ products or programs, including potential competitors not currently identified, are successful, the market for our products may be reduced or eliminated.

Compared to us, many of our competitors and potential competitors have substantially greater:

capital resources;
research and development resources, including personnel and technology;
regulatory experience;
preclinical study and clinical testing experience;
manufacturing and marketing experience; and
production facilities.

capital resources;
research and development resources, including personnel and technology;
regulatory experience;
preclinical study and clinical testing experience;
manufacturing, marketing, and sales experience; and
production facilities.
Any of these competitive factors could impede our funding efforts, render technology andour products, product candidates, or technologies noncompetitive or eliminate or reduce demand for our product candidates.

We face risks related to our government-funded programs; if BARDA/HHS or NIAID/HHS were to eliminate, reduce or delay funding from our contracts, this would have a significant negative impact on the programs associated with such funding and could have a significant negative impact on our revenues and cash flows.

Our projections of revenues and incoming cash flows are substantially dependent upon BARDA/HHS and NIAID/HHS reimbursement for the costs related to our galidesivir program. If BARDA/HHS or NIAID/HHS were to eliminate, reduce or delay the funding for these programs or disallow some of our incurred costs, we would have to obtain additional funding for continued development or regulatory registration for these product candidates or significantly reduce or stop the development effort. 

In contracting with BARDA/HHS and NIAID/HHS, we are subject to various U.S. Government contract requirements, including general clauses for a cost-reimbursement research and development contract, which may limit our reimbursement or if we are found to be in violation could result in contract termination. If the U.S. Government terminates any of its contracts with us for its convenience, or if we default by failing to perform in accordance with the contract schedule and terms, significant negative impact on our cash flows and operations could result. 

Our government contracts with BARDA/HHS and NIAID/HHS have special contracting requirements, which create additional risks of reduction or loss of funding.

We have completed work under a contract with BARDA/HHS for the development of our neuraminidase inhibitor, RAPIVAB. We also have entered into contracts with BARDA/HHS and NIAID/HHS for the development of galidesivir as a treatment for diseases caused by RNA pathogens, including Marburg virus disease and Ebola virus disease. In contracting with these government agencies, we are subject to various U.S. Government contract requirements, including general clauses for a cost-reimbursement research and development contract, which may limit our reimbursement or, if we are found to be in violation, could result in contract termination.

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U.S. Government contracts typically contain a number of extraordinary provisions that would not typically be found in commercial contracts and which may create a disadvantage and additional risks to us as compared to competitors that do not rely on U.S. Government contracts. These risks include the ability of the U.S. Government to unilaterally:

terminate or reduce the scope of our contract with or without cause;
interpret relevant regulations (federal acquisition regulation clauses);
require performance under circumstances which may not be favorable to us;
require an in process review where the U.S. Government will review the project and its options under the contract;
control the timing and amount of funding, which impacts the development progress of our programs; and
audit and object to our contract-related costs and fees, including allocated indirect costs.

Our government contracts with BARDA/HHS and NIAID/HHS have termination and audit provisions which create additional risks to us.

The U.S. Government may terminate its contracts with us either for its convenience or if we default by failing to perform in accordance with the contract schedule and terms. Termination for convenience provisions generally enable us to recover only our costs incurred or committed, and settlement expenses and profit on the work completed prior to termination. Termination does not permit these recoveries under default provisions. In the event of termination or upon expiration of a contract, the U.S. Government may dispute wind-down and termination costs and may question prior expenses under the contract and deny payment of those expenses. Should we choose to challenge the U.S. Government for denying certain payments under a contract, such a challenge could subject us to substantial additional expenses which we may or may not recover. Further, if the U.S. Government terminates its contracts with us for its convenience, or if we default by failing to perform in accordance with the contract schedule and terms, significant negative impact on our cash flows and operations could result.

As a U.S. Government contractor, we are required to comply with applicable laws, regulations and standards relating to our accounting practices and are subject to periodic audits and reviews. As part of any such audit or review, the U.S. Government may review the adequacy of, and our compliance with, our internal control systems and policies, including those relating to our purchasing, property, estimating, compensation and management information systems. Audits conducted by the U.S. Government for the completed BARDA/HHS peramivir contract have been performed and concluded through fiscal 2009; all subsequent fiscal years are still open and auditable. Audits under the active BARDA/HHS and NIAID/HHS galidesivir contracts may occur at the election of the U.S. Government and have been concluded through fiscal 2013. Based on the results of its audits, the U.S. Government may adjust our contract-related costs and fees, including allocated indirect costs. This adjustment could impact the amount of revenues reported on a historic basis and could impact our cash flows under the contracts prospectively. In addition, in the event BARDA/HHS or NIAID/HHS determines that certain costs and fees were unallowable or determines that the allocated indirect cost rate was higher than the actual indirect cost rate, BARDA/HHS or NIAID/HHS would be entitled to recoup any overpayment from us as a result. In addition, if an audit or review uncovers any improper or illegal activity, we may be subject to civil and criminal penalties and administrative sanctions, including termination of our contracts, forfeiture of profits, suspension of payments, fines and suspension or prohibition from doing business with the U.S. Government. We could also suffer serious harm to our reputation if allegations of impropriety were made against us. In addition, under U.S. Government purchasing regulations, some of our costs may not be reimbursable or allowed under our contracts. Further, as a U.S. Government contractor, we are subject to an increased risk of investigations, criminal prosecution, civil fraud, whistleblower lawsuits and other legal actions and liabilities as compared to private sector commercial companies.

If we fail to reach milestones or to make annual minimum payments or otherwise breach our obligations under our license agreements, our licensors may terminate our agreements with them and seek additional remedies.

If we are unable or fail to meet payment obligations, performance milestones relating to the timing of regulatory filings, product supply obligations, post approval commitments for RAPIVAB, or development and commercial diligence obligations; are unable or fail to make milestone payments or material data use payments in accordance with applicable provisions; or fail to pay the minimum annual payments under our respective licenses, our licensors may terminate the applicable license or seek other available remedies. As a result, our development of the respective product candidate or commercialization of the product would cease.   

If we fail to obtain additional financing or acceptable partnership arrangements, we may be unable to complete the development and commercialization of our product candidates or continue operations.

As our programs advance, our costs are likely to increase. Our current and planned discovery activities, pre-clinical and clinical trials, the related development, manufacturing, regulatory approval process requirements, and the additional personnel resources and testing required for supporting the development of our product candidates will consume significant capital resources. Our expenses, revenues and cash utilization rate could vary significantly depending on many factors, including: our ability to raise additional capital; the development progress of our collaborative agreements for our product candidates; the amount of funding we receive from NIAID/HHS and BARDA/HHS for galidesivir or from other new partnerships with third parties for the development of our product candidates, including BCX7353 and our other rare disease product candidates; the commercial success of peramivir achieved by our partners; the amount or profitability of any orders for peramivir or galidesivir by any government agency or other party; the progress and results of our current and proposed clinical trials for our most advanced product candidates, including BCX7353 and our other rare disease product candidates; the progress made in the manufacture of our lead products and the progression of our other programs.

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We expect that we will be required to raise additional capital to complete the development and commercialization of our current product candidates and we may seek to raise capital at any time. Additional funding, whether through additional sales of securities, additional borrowings, or collaborative arrangements with partners, including governmental agencies in general and from any BARDA/HHS or NIAID/HHS contract specifically, may not be available when needed or on terms acceptable to us. The issuance of preferred or common stock or convertible securities, with terms and prices significantly more favorable than those of the currently outstanding common stock, could have the effect of diluting or adversely affecting the holdings or rights of our existing stockholders. Additional borrowings may subject us to more restrictive covenants than are currently applicable to us under our September 23, 2016 Senior Credit Facility with an affiliate of MidCap Financial Services, LLC, as administrative agent (the “Senior Credit Facility”). In addition, collaborative arrangements may require us to transfer certain material rights to such corporate partners. Insufficient funds or lack of an acceptable partnership may require us to delay, scale-back or eliminate certain of our research and development programs.

In order to continue future operations and continue our drug development programs, we will be required to raise additional capital. In addition to seeking strategic partnerships, transactions and government funding, we may decide to access the equity or debt markets, incur additional borrowings, or seek other sources to meet liquidity needs. Our ability to raise additional capital may be limited and may greatly depend upon the success of ongoing development related to our current drug development programs, including post approval studies for RAPIVAB, the progress, timeline and ultimate outcome of our kallikrein inhibitors, including the BCX7353 program (including, but not limited to, formulation progress, Phase 3 trials, long-term human safety studies, and the timing of carcinogenicity or other required studies), the progress of our other rare disease product candidates, funding for and continued successful development of galidesivir, and the progress of our early discovery programs. In addition, constriction and volatility in the equity and debt markets may restrict our future flexibility to raise capital when such needs arise. Furthermore, we have exposure to many different industries, financing partners and counterparties, including commercial banks, investment banks and partners (which include investors, licensing partners, and the U.S. Government) which may be unstable or may become unstable in the current economic and political environment. Any such instability may impact these parties’ ability to fulfill contractual obligations to us or they might limit or place burdensome conditions upon future transactions with us. Also, it is possible that suppliers may be negatively impacted. Any such unfavorable outcomes in our current programs or unfavorable economic conditions could place severe downward pressure on the price of our common stock and may decrease opportunities to raise capital in the capital or credit markets, and further could reduce the return available on invested corporate cash, which, if severe and sustained, could have a material and adverse impact on our results of operations and cash flows and limit our ability to continue development of our product candidates.

We may not be able to continue as a going concern if we do not obtain additional capital.

We have sustained operating losses for the majority of our corporate history

Legal and expect that our 2017 expenses will exceed our 2017 revenues. We expect to continue to incur operating losses and negative cash flows until revenues reach a level sufficient to support ongoing operations.

Our liquidity needs will be largely determined by the success of operations in regards to the progression of our product candidates in the future. Our plans to alleviate the doubt regarding our ability to continue as a going concern primarily include our ability to control the timing and spending on our research and development programs and raising additional funds through equity financings.  We also may consider other plans to fund operations including: (1) securing or increasing U.S. Government funding of our programs, including obtaining procurement contracts; (2) out-licensing rights to certain of our products or product candidates, pursuant to which the we would receive cash milestones; (3) raising additional capital through equity or debt financings or from other sources; (4) obtaining additional product candidate regulatory approvals, which would generate revenue, milestones and cash flow; (5) reducing spending on one or more research and development programs, including by discontinuing development; and/or (6) restructuring operations to change our overhead structure.

There can be no assurance that any of our plans will be successful or that additional capital will be available to us on reasonable terms, or at all, when needed. If we are unable to obtain sufficient additional capital, we may be forced to curtail operations, delay or stop ongoing clinical trials, cease operations altogether or file for bankruptcy.

If we fail to successfully commercialize or establish collaborative relationships to commercialize certain of our product candidates, or if any partner terminates or fails to perform its obligations under agreements with us, potential revenues from commercialization of our product candidates could be reduced, delayed or eliminated.

Our business strategy is to increase the asset value of our product candidate portfolio. We believe this is best achieved by retaining full product rights or through collaborative arrangements with third parties as appropriate. As needed, potential third-party relationships could include preclinical development, clinical development, regulatory approval, marketing, sales and distribution of our product candidates. 

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Regulatory Risks

Currently, we have established collaborative relationships with Mundipharma for the development and commercialization of forodesine and with each of Shionogi and Green Cross for the development and commercialization of peramivir in Japan, Taiwan and South Korea. Most recently we have established a collaborative relationship with Seqirus UK Limited for RAPIVAB on a worldwide basis other than Israel, Japan, Korea and Taiwan. The process of establishing and implementing collaborative relationships is difficult, time-consuming and involves significant uncertainty, including:

our partners may seek to renegotiate or terminate their relationships with us due to unsatisfactory commercial, regulatory or clinical results, including post approval clinical commitments, a change in business strategy, a change of control or other reasons;
our contracts for collaborative arrangements may expire;
our partners may choose to pursue alternative technologies, including those of our competitors;
we may have disputes with a partner that could lead to litigation or arbitration;
we do not have day to day control over the activities of our partners and have limited control over their decisions;
our ability to generate future event payments and royalties from our partners depends upon their abilities to establish the safety and efficacy of our product candidates, obtain regulatory approvals and achieve market acceptance of products developed from our product candidates;
we or our partners may fail to properly initiate, maintain or defend our intellectual property rights, where applicable, or a party may utilize our proprietary information in such a way as to invite litigation that could jeopardize or potentially invalidate our proprietary information or expose us to potential liability;
we or our partners may not devote sufficient capital or resources towards our product candidates; and
we or our partners may not comply with applicable government regulatory requirements.

If we or our partners fail to fulfill our responsibilities in a timely manner, or at all, our commercialization efforts related to that collaboration could be reduced, delayed or terminated, or it may be necessary for us to assume responsibility for activities that would otherwise have been the responsibility of our partner. If we are unable to establish and maintain collaborative relationships on acceptable terms, we may have to delay or discontinue further development of one or more of our product candidates, undertake commercialization activities at our own expense or find alternative sources of funding. Any delay in the development or commercialization of our product candidates would severely affect our business, because if our product candidates do not progress through the development process or reach the market in a timely manner, or at all, we may not receive additional future event payments and may never receive milestone, product sales or royalty payments. 

We do not have a great deal of experience in commercializing our products or technologies, and our future revenue generation is uncertain.

We do not have a great deal of experience in commercializing our product candidates or technologies. We currently have limited marketing and commercial capability, no direct or third-party sales force and limited distribution capabilities. We may be unable to establish or sufficiently increase these capabilities for products we currently, or plan to, commercialize. In addition, our revenue from collaborative agreements may be dependent upon the status of our preclinical and clinical programs. 

Our ability to receive revenue from products we commercialize presents several risks, including:

we or our collaborators may fail to successfully complete clinical trials, or satisfy post-marketing commitments, sufficient to obtain and keep FDA marketing approval;
many competitors are more experienced and have significantly more resources, and their products could reach the market faster, be more cost effective or have a better efficacy or tolerability profile than our product candidates;
we may fail to employ a comprehensive and effective intellectual property strategy, which could result in decreased commercial value of our Company and our products;
we may fail to employ a comprehensive and effective regulatory strategy, which could result in a delay or failure in commercialization of our products;
our ability to successfully commercialize our products is affected by the competitive landscape, which cannot be fully known at this time;
reimbursement is constantly changing, which could greatly affect usage of our products; and
future revenue from product sales would depend on our ability to successfully complete clinical studies, obtain regulatory approvals, and manufacture, market and commercialize our approved drugs.

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Commercialization of peramivir by our partners is subject to the potential commercialization risks described herein and numerous additional risks. Any potential revenue benefits to us in the form of milestone payments, royalties or other consideration are highly speculative.

Commercialization success of peramivir is uncertain and is subject to all the risks and uncertainties disclosed in our other risk factors relating to drug development and commercialization. In addition, commercialization of peramivir products is subject to further risks and may be negatively impacted by a number of factors, including, but not limited to, the following:

peramivir may not prove to be adequately safe and effective for market approval in markets other than the United States, Canada, Japan, Korea and Taiwan;
necessary funding for post-marketing commitments and further development of peramivir may not be available timely, at all, or in sufficient amounts;
flu prevention or pandemic treatment concerns may not materialize at all, or in the near future;
advances in flu vaccines or other antivirals, including competitive i.v. antivirals, could substantially replace potential demand for peramivir;
a limited number of governmental entities are expected to be the primary potential stockpiling customers for peramivir and if we are not successful at marketing peramivir to these entities for any reason, we will not receive substantial revenues from stockpiling orders;
government and third party payors may not provide sufficient coverage or reimbursement which would negatively impact the demand for peramivir;
we may not be able to supply commercial material to our partners and our partners may not be able to maintain or establish sufficient and acceptable commercial manufacturing, either directly or through third-party manufacturers;
the commercial demand and acceptance for peramivir by healthcare providers and by patients may not be sufficient to result in substantial revenues of peramivir to our partners and may result in little to no milestones or royalties to us;
effectiveness of marketing and commercialization efforts for peramivir by our partners;
market satisfaction with existing alternative therapies;

perceived efficacy relative to other available therapies;
disease prevalence;
cost of treatment;
pricing and availability of alternative products;
marketing and sales activities of competitors;

shifts in the medical community to new treatment paradigms or standards of care; and
relative convenience and ease of administration.

We are subject to various federallaws and state lawsregulations related to RAPIVABour products and other products under developmentproduct candidates, and if we or our partners do not comply with these laws and regulations, we could face substantial penalties.

Our orand our partners’ activities related to RAPIVAB,approved products or, following their regulatory approval (if applicable), any of our other productsproduct candidates under development, and following their regulatory approval,such as BCX10013, are subject to regulatory and law enforcement authorities in addition tothe United States (including the FDA, including the Federal Trade Commission, the Department of Justice (“DOJ”), and state and local governments. Ingovernments) and their foreign equivalents (including the case of our collaboration with SUL, although SUL is responsible for RAPIVAB marketingEMA, MHLW, MHRA, and commercialization efforts, we continue to carry certain risks associated with RAPIVAB because we hold the RAPIVAB NDA. For example, weothers).
We are responsible for reporting adverse drug experiences, we have responsibility for certain post-approval studies, weand may have responsibilities and costs related to a recall or withdrawal of RAPIVABour products from sale wein the jurisdictions in which they are approved. We may also incur liability associated with RAPIVABproduct manufacturing contracted by us or in support of any of our partners, wepartners. We are required to maintain records and provide data and reports to regulatory agencies related to RAPIVABour products (e.g. risk evaluation and mitigation strategies, track and trace requirements, and adverse events), and we may incur certain promotional regulatory and government pricing risks, all of which could have a material adverse impact on our operations and financial condition.

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Similar responsibilities would apply upon regulatory approval of any of our other product candidates currently under development.

In addition, we are subject to the federal physician sunshine act and certain similar physician payment and drug pricing transparency legislation in various states. We are also subject to various federal and state laws pertaining to health carehealthcare “fraud and abuse,” including both federal and state anti-kickback and false claims laws. TheseOutside of the United States, we may be subject to analogous foreign laws regulateand regulations in the various jurisdictions in which we operate. These

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laws and regulations apply to our orand our partners’ operations, sales and marketing practices, price reporting, and relationships with physicians and other customers and third-party payors. Anti-kickback laws generally prohibit a manufacturer from soliciting, offering, receiving, or paying any remuneration to generate business, including the purchase or prescription of a particular drug. Although the specific provisions of these laws vary, their scope is generally broad and there may be no regulations, guidance or court decisions that clarify how the laws apply to particular industry practices. False claims laws prohibit anyone from knowingly and willingly presenting, or causing to be presented for payment to third party payors (including Medicare and Medicaid) claims for reimbursement or services that are false or fraudulent, claims for items or services not provided as claimed, or claims for medically unnecessary items or services. The sunshine provisions apply to manufacturers with products reimbursed under certain government programs and require those manufacturers to disclose annually to the federal government certain payments made to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors) and teaching hospitals, as well as, ownership and investment interests held by physicians (as defined above) and their immediate family members. State laws may also require disclosure of pharmaceutical pricing information and marketing expenditures. Although we seek to comply with these statutes, it is possible that our practices, or those of our partners, might be challenged under health carehealthcare fraud and abuse, anti-kickback, false claims or similar laws. Violations of the physician sunshine act and similar state legislation or the fraud and abuse laws may be punishable by civil or criminal sanctions, including fines and civil monetary penalties, and future exclusion from participation in government healthcare programs.

We have

The principal investigators for our clinical trials may serve as scientific advisors or consultants to us from time to time and receive compensation in connection with such services. Under certain circumstances, we may be required to report some of these relationships to certain regulatory authorities, including the FDA and comparable foreign regulatory authorities. Consequently, the FDA or other regulatory authority may conclude that a numberfinancial relationship between us and a principal investigator creates a conflict of outstanding post-marketing commitmentsinterest or otherwise affects interpretation of the study. In the event of a conflict of interest with respect to a study, the integrity of the data generated at the applicable clinical trial site may be questioned or the utility of the clinical trial itself may be jeopardized. This could result in a delay in approval, or rejection, of our marketing applications by the FDA or other regulatory authority, as the case may be, and may ultimately lead to the denial of marketing approval of one or more of our product candidates.
The FDA that we retain, despite our partnership with SUL,and foreign regulatory authorities may also impose post-approval commitments on us for approved products, which we may not complete successfully or on time for any number of reasons, including, but not limited to, lack of funds to complete the studies and insufficient interest by appropriate sites, investigators or study subjects. For example, as a condition of the approval of RAPIVAB, weWe are required to complete a pediatric patient study of RAPIVAB and to submit the final results of this clinical trial to the FDA. Depending on the FDA’s evaluation of the data from this clinical trial, we may be unable to expand the indication for RAPIVAB or we may be required to include specific warnings or limitations on dosing this product, which could negatively impact sales of RAPIVAB and negatively impact our relationship with our partner. We may becurrently subject to penalties ifcertain post-approval commitments. If we fail to comply with post-approval legal and regulatory requirements, we could be subject to penalties, and our products could be subject to continual recordkeeping and reporting requirements, review and periodic inspections by the FDA and other regulatory bodies. Regulatory approval of a product may be subject to limitations on the indicated uses for which the product may be marketed or to the other restrictive conditions of approval that limit our ability to promote, sell or distribute a product. Furthermore, the approval of RAPIVABour products and any other future product candidates may be subject to requirements for costly post-marketingpost-approval testing and surveillance to monitor itstheir safety or efficacy.

Advertising and promotion are subject to stringent FDA rules and oversight, and as thean NDA holder, of the NDA we may be held responsible for any advertising and promotion conducted by our partner that is not in compliance with the rules and regulations. Applicable regulatory authorities, competitors, and other third parties may take the position that we are not in compliance with such regulations. In particular, the claims in all promotional materials and activities must be consistentaddition to medical education efforts, we may offer patient support services to assist patients receiving treatment with the FDA approvals forour commercially approved products and must be appropriately substantiated and fairly balanced with information onwhich have increasingly become the safety risks and limitationsfocus of the products. government investigation.
Adverse event information concerning approved products must be reviewed, and as thean NDA holder, of RAPIVAB we are required to make expedited and periodic adverse event reports to the FDA and other regulatory authorities.

In addition, the research, manufacturing, distribution, sale and promotion of products are potentially subject to regulation by various federal, state and local authorities in addition to the FDA, including the Centers for Medicare and Medicaid Services (“CMS”), other divisions of HHS, the U.S. Department of Health and Human Services, the U.S. Department of JusticeDOJ and individual U.S. Attorney offices within the Department of Justice, andDOJ, state and local governments. Until we can successfully transfer the pricing responsibilities to our partner, we remain responsible for pricinggovernments, and rebate programs. Pricing and rebate programs must comply with the Medicaid rebate requirementsforeign equivalents of the Omnibus Budget Reconciliation Act of 1990, as amended, and the Veterans Health Care Act of 1992, as amended. If products are made available to authorized users of the Federal Supply Schedule of the General Services Administration, additional laws and requirements apply.foregoing. All of these activities are also potentially subject to federal and state healthcare false claims and fraud and abuse laws, as well as consumer protection and unfair competition laws.

If our operations with respect to RAPIVAB or our other products that are subject to healthcare laws and regulations are found to be in violation of any of the healthcare fraud and abuse laws described above or in “Business—Government Regulation” in Part I, Item 1 of our most recent Annual Report on Form 10-K or any other governmental 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. Any penalties, damages, fines, curtailment or restructuring of our operations 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, the risks cannot be entirely eliminated. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management'smanagement’s attention from the operation of our business. Moreover, achieving and sustaining compliance with all applicable federal and state fraud and abuse laws may be costly.

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Our employees, consultants and partners may engage in misconduct or other improper activities, including non-compliance with regulatory standards and requirements, which could cause significant liability for us and harm our reputation.
We are subject to the risk of fraud or other misconduct by our employees, consultants and partners, including intentional or unintentional failures to comply with FDA regulations or similar regulations of comparable other regulatory authorities, provide accurate information to the FDA or comparable other regulatory authorities, comply with manufacturing standards we have established, comply with federal and state healthcare fraud and abuse laws and regulations and similar laws and regulations established and enforced by comparable other regulatory authorities, report financial information or data accurately or disclose unauthorized activities to us. Employee and consultant misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter employee and consultant misconduct, whether intentional, reckless, negligent, or unintentional, 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 compliance with such laws, standards or regulations. If any such actions are instituted against us and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines or other sanctions.
We and our partners may be subject to new legislation, regulatory proposals and healthcare payor initiatives that may increase our costs of compliance and adversely affect our or our partners’ partnersability to market our products, including RAPIVAB,develop our product candidates, obtain collaborators and raise capital.

The

We are subject to new legislation, regulatory, and healthcare payor initiatives, including the Patient Protection and Affordable Care Act or PPACA,(“PPACA”), which made extensive changes to the delivery of health carehealthcare in the U.S. The PPACA included numerous provisions that affect pharmaceutical companies, someUnited States, as discussed in “Business—Government Regulation” in Part I, Item 1 of which became effective immediately and others of which have taken effect over the past several years. For example, the PPACA expanded health care coverage to the uninsured through private health insurance reforms and an expansion of Medicaid. The PPACA also imposed substantial costsour most recent Annual Report on pharmaceutical manufacturers, such as an increase in liability for rebates paid to Medicaid, new drug discounts that must be offered to certain enrollees in the Medicare prescription drug benefit, an annual fee imposed on all manufacturers of brand prescription drugs in the U.S., and an expansion of an existing program requiring pharmaceutical discounts to certain types of hospitals and federally subsidized clinics. The PPACA also contains cost containment measures that could reduce reimbursement levels for health care items and services generally, including pharmaceuticals. It also required reporting and public disclosure of payments and other transfers of value provided by pharmaceutical companies to physicians and teaching hospitals.

We expect that the current presidential administration and U.S. Congress will likely continue to seek to modify, repeal, or otherwise invalidate all, or certain provisions of, the PPACA. There is still significant uncertainty with respect to the impact that the current presidential administration and the U.S. Congress may have on the PPACA, if any, and any changes will likely take time to unfold. As such, we cannot predict what effect the PPACA or other healthcare reform initiatives that may be adopted in the future will have on our business.

We cannot predict what effect the PPACA or other healthcare reform initiatives that may be adopted in the future will have on our business.Form 10-K. The continuing efforts of the government, insurance companies, managed care organizations and other payors of health carehealthcare services to contain or reduce costs of health carehealthcare could result in decreased net revenues from our pharmaceutical products and decrease potential returns from our development efforts. In addition, pharmaceutical and device manufacturers are also required to report and disclose certain payments and transfers of value to, and investment interests held by, physicians and their immediate family members during the preceding calendar year. Failure to submit required information may result in civil monetary penalties for payments, transfers of value, or ownership or investment interests not reported in an annual submission. Compliance with the PPACA and state laws with similar provisions is difficult and time consuming, and companies that do not comply with these state laws face civil penalties. Because of the breadth of these laws and the narrowness of the applicable safe harbors, it is possible that some of our business activities could be subject to challenge under one or more of such laws. Such a challenge could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

In addition, there have been a number of other legislative and regulatory proposals aimed at changing the pharmaceutical industry. In particular,For example, legislation has been enacted in certain states and at a federal level that requires development of an electronic pedigree to track and trace each prescription drug at the saleable unit level through the distribution system. Compliance with these electronic pedigree requirements may increase our operational expenses and impose significant administrative burdens. In addition, our compliance may be deemed insufficient and we could face a material adverse effect on our business, financial condition, results of operations and growth prospects. As a result of these and other new proposals, we may determine to change our current manner of operation, provide additional benefits or change our contract arrangements, any of which could have a material adverse effect on our business, financial condition and results of operations.

Adequate coverage and reimbursement in the U.S.United States and other markets is critical to the commercial success of RAPIVAB or any other product that we might bring to market.our approved products. Recently in the U.S.United States, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. For example, the Inflation Reduction Act of 2022 (“IRA”) implements a number of drug pricing measures intended to lower the cost of prescription drugs and related healthcare reforms, including limits on price increases and subjecting an escalating number of drugs to annual price negotiations with CMS. We cannot be sure whether additional legislation or rulemaking related to the IRA will be issued or enacted, or what impact, if any, such changes will have on the profitability of our products or any of our product candidates, if approved for commercial use, in the future. The effect of the IRA on our business and the healthcare industry in general is not yet known. In addition, regional healthcare authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which has resultedsuppliers will be included in several Congressional inquiriestheir prescription drug and proposed bills designed to, among other things, reform government program reimbursement methodologies.healthcare programs. Third-party payors are increasingly challenging the prices charged for medical products and services
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and, in some cases, imposing restrictions on the coverage of particular drugs. Many third-party payors negotiate the price of medical services and products and develop formularies which establish pricing and reimbursement levels. Exclusion of a product from a formulary can lead to its sharply reduced usage in the third-party payor’s patient population. The process for obtaining coverage can be lengthy and costly, and we expect that it could take several months before a particular payor initially reviews oura product and makes a decision with respect to coverage. For example, third-party payors may require cost-benefit analysis data from us in order to demonstrate the cost-effectiveness of RAPIVABour products or any other product we might bring to market. For any individual third-party payor, we may not be able to provide data sufficient to gain reimbursement on a similar or preferred basis to competitive products, or at all, which may have a material adverse effect on our business, financial condition and results of operations.

There

We are risks relatedsubject to the potential government use or sale of peramivir (RAPIVAB).

United States Government use or sale of RAPIVAB in emergency situations, or otherwise, may result in the use of RAPIVAB outside of its approved use. To the extent that RAPIVAB is used as a treatment for influenza by the U.S. Government or peramivir by any other government entity, there can be no assurance that it will prove to be generally safe, well-tolerateddata security and effective. Such government use of RAPIVAB/peramivir may create certain liabilities for us or our partners in the case of government use outside of the U.S. There is no assurance that we or our manufacturers will be able to fully meet the demand for peramivir in the event of additional orders. Further, we may not achieve a favorable price for additional orders of RAPIVAB in the U.S. or peramivir in any other country. Our competitors may develop products that could compete with or replace peramivir. We may face competition in markets where we have no existing intellectual property protection or are unable to successfully enforce our intellectual property rights.

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There is no assurance that the non-U.S. partnerships that we have entered into for peramivir will result in any order for peramivir in those countries. There is no assurance that peramivir will be approved for any use or will achieve market approval in additional countries. In the event that any emergency use or market approval is granted, there is no assurance that any government order or commercialization of peramivir in any countries will be substantial or will be profitable to us. In addition, the sale of peramivir, emergency use or other use of peramivir in any country may create certain liabilities for usprivacy risks, and our partners.

If weactual or our partners do not obtain and maintain governmental approvals for our product candidates under development, we or our partners will not be able to sell these potential products, which would significantly harm our business because we will receive no revenue.

We or our partners must obtain regulatory approval before marketing or selling our future product candidates. If we or our partners are unable to receive regulatory approval and do not market or sell our future product candidates, we will never receive any revenue from such product sales. In the United States, we or our partners must obtain FDA approval for product candidates that we intend to commercialize. The process of preparing for and obtaining FDA approval may be lengthy and expensive, and approval is never certain. Products distributed abroad are also subject to foreign government regulation and export laws of the United States. Because of the risks and uncertainties in biopharmaceutical development, our product candidates could take a significantly longer time to gain regulatory approval than we expect or may never gain approval. If the FDA delays regulatory approval of our product candidates, our management’s credibility, our value and our operating results may suffer. Even if the FDA or foreign regulatory agencies approve a product candidate, the approval may limit the indicated uses for a product candidate and/or may require post-approval studies. 

The FDA regulates, among other things, the record keeping and storage of data pertaining to potential pharmaceutical products. We currently store most of our preclinical research data, our clinical data and our manufacturing data at our facility. While we do store duplicate copies of most of our clinical data offsite and a significant portion of our data is included in regular backups of our systems, we could lose important data if our facility incurs damage, or if our vendor data systems fail, suffer damage or are destroyed. If we receive approval to market our potential products, whether in the United States or internationally, we will continue to be subject to extensive regulatory requirements. These requirements are wide ranging and govern, among other things:

adverse drug experience reporting regulations;
product promotion;
product manufacturing, including good manufacturing practice requirements; and
product changes or modifications.

Ourperceived failure to comply with existingregulations and other legal obligations related to privacy and data protection could harm our business.

We are subject to legal obligations related to privacy and data protection. Compliance with U.S. and international data protection laws and regulations could require us to take on more onerous obligations in our contracts, restrict our ability to collect, use, and disclose data, or future regulatory requirements, orin some cases, impact our lossability to operate in certain jurisdictions. For example, we may be subject to the California Consumer Privacy Act, which gives California residents expanded rights to access and require deletion of or changestheir personal information, opt out of certain personal information sharing, and receive detailed information about how their personal information is used. We also may be subject to previously obtained approvals, could have a material adverse effect on our business because we will not receive product or royalty revenues if we or our partners do not receive approvalthe General Data Protection Regulation (“GDPR”) in the European Economic Area (“EEA”) and similar legislation in the United Kingdom and Switzerland. See “Business—Government Regulation—Data Privacy and Security Laws” in Part I, Item 1 of our productsmost recent Annual Report on Form 10-K and “Risks Relating to Our Business—Risks Relating to International Operations—Our actual or perceived failure to comply with European governmental laws and regulations and other legal obligations related to privacy, data protection and information security could harm our business” in this section for marketing.  

Royaltiesadditional discussion of privacy laws and milestone payments from Shionogi underregulations. Failure to comply with these laws and regulations could result in government enforcement actions, private litigation, or harm to our license agreement with Shionogi (the “Shionogi Agreement”) will be required to be used by Royalty Sub to service its obligations under its PhaRMA Notes,reputation and generally will not be available to us for other purposes until Royalty Sub has repaid in full its obligations under the PhaRMA Notes.

In March 2011, our wholly-owned subsidiary Royalty Sub issued $30.0 million in aggregate principal amount of PhaRMA Notes. The PhaRMA Notes are secured principally by (i) certain royalty and milestone payments under the Shionogi Agreement, pursuant to which Shionogi licensed from us the rights to market peramivir in Japan and Taiwan, (ii) rights to certain payments under a Japanese yen/U.S. dollar Currency Hedge Agreement put into place by us in connection with the issuance of the PhaRMA Notes and (iii) the pledge by usbusiness.

If, because of our equity interest in Royalty Sub. Payments from Shionogiuse of hazardous materials, we violate any environmental controls or regulations that apply to us on non-governmental sales under the Shionogi Agreement will generally not be available to us for other purposes until Royalty Sub has repaid in full its obligations under the PhaRMA Notes. Accordingly, these funds will be required to be dedicated to Royalty Sub’s debt service and not available to us for product development or other purposes. As of September 1, 2014, the payments from Shionogi were insufficient for Royalty Sub to service its obligations under the PhaRMA Notes, resulting in an event of default with respect to the PhaRMA Notes. As a result of this event of default, the holders of the PhaRMA Notes may be able to pursue acceleration of the PhaRMA Notes and foreclose on the collateral securing the PhaRMA Notes and our equity interest in Royalty Sub and may exercise other remedies available to them under the indenture or other documents related to the PhaRMA Notes. In such event, we may not realize the benefit of future royalty payments that might otherwise accrue to us following repayment of the PhaRMA Notes,materials, we may incur legalsubstantial costs and we might otherwise be adversely affected.

Because anexpenses in our remediation efforts.

Our research and development involves the controlled use of hazardous materials, chemicals and various radioactive compounds. We are subject to federal, state and local laws and regulations governing the use, storage, handling and disposal of these materials and some waste products. Accidental contamination or injury from these materials could occur. In the event of default has occurred under the PhaRMA Notes, the holders of the PhaRMA Notes may be able to pursue acceleration of the PhaRMA Notes and foreclose on the collateral securing the PhaRMA Notes and our equity interest in Royalty Sub, in which case we may not realize the benefit of future royalty payments that might otherwise accrue to us following repayment of the PhaRMA Notes andan accident, we could otherwise be adversely affected.

Royalty Sub’s ability to service its payment obligations in respectliable for any damages that result, and any liabilities could exceed our resources. Compliance with environmental laws and regulations or a violation of the PhaRMA Notes,such environmental laws and our ability to benefit from our equity interest in Royalty Sub, is subject to numerous risks. Royalty Sub’s ability to service the PhaRMA Notes may be adversely affected by, among other things, changes in or any termination of our relationship with Shionogi, reimbursement, regulatory, manufacturing and/or intellectual property issues, product returns, product recalls, product liability claims and allegations of safety issues, as well as other factors. As Royalty Sub has been unable to service its obligations under the PhaRMA Notes and an event of default has occurred under the PhaRMA Notes, the holders of the PhaRMA Notes may be able to pursue acceleration of the PhaRMA Notes and foreclose on the collateral securing the PhaRMA Notes and our equity interest in Royalty Sub and may exercise other remedies available to them under the indenture or other documents related to the PhaRMA Notes. In such event, we may not realize the benefit of future royalty payments that might otherwise accrue to us following repayment of the PhaRMA Notes, we may incur legal costs and we might otherwise be adversely affected.

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We may be required to pay significant premiums under the Currency Hedge Agreement entered into by us in connection with the issuance of the PhaRMA Notes. In addition, because our potential obligations under the foreign currency hedge are marked to market, we may experience additional quarterly volatility in our operating results and cash flows attributable to the Currency Hedge Agreement. 

In connection with the issuance by Royalty Sub of the PhaRMA Notes, we entered into a Currency Hedge Agreement to hedge certain risks associated with changes in the value of the Japanese yen relative to the U.S. dollar. Under the foreign currency hedge agreement, we may be required to pay an annual premium in the amount of $2.0 million in each May continuing through May 2020. Such payment will be required if, in May of the relevant year, the spot rate of exchange for Japanese yen-U.S. dollars (determined in accordance with the Currency Hedge Agreement) is such that the U.S. dollar is worth 100 yen or less. We will be required to mark to market our potential obligations under the currency hedge and post cash collateral, which may causeregulations could require us to experience additional quarterly volatility inincur substantial unexpected costs, which would materially and adversely affect our operating results and cash flows as a result. Additionally, we may be required to pay significant premiums or a termination fee under the foreign currency hedge agreement entered into by us in connection with the issuance of the PhaRMA Notes. We are required to maintain a foreign currency hedge at 100 yen per dollar under the agreements governing the PhaRMA Notes.

Our Senior Credit Facility contains restrictions that limit our flexibility in operating our business. We may be required to make a prepayment or repay the outstanding indebtedness earlier than we expect if a prepayment event or an event of default occurs, including a material adverse change with respect to us, which could have a material adverse effect on our business.

The Senior Credit Facility contains various covenants that limit our ability to engage in specified types of transactions. These covenants limit our ability to, among other things:

convey, sell, lease, license, transfer or otherwise dispose of certain parts of our business or property;
change the nature of our business;

liquidate or dissolve;
enter into certain change in control or acquisition transactions;
incur or assume certain debt;
grant certain types of liens on our assets;
modify, liquidate or transfer assets in certain collateral accounts;
pay dividends or make certain distributions to our stockholders;
make certain investments;
enter into material transactions with affiliates; and
modify existing debt or collaboration arrangements.

The restrictive covenants contained in the Senior Credit Facility could cause us to be unable to pursue business opportunities that we or our stockholders may consider beneficial without the lender’s permission or without repaying all Senior Credit Facility obligations.

A breach of any of these covenants could result in an event of default under the Senior Credit Facility. An event of default will also occur if, among other things, a material adverse change in our business, operations or condition occurs, which could potentially include negative results in clinical trials, or a material impairment of the prospect of our repayment of any portion of the amounts we owe under the Senior Credit Facility occurs. In the case of a continuing event of default under the agreement, the lender could elect to declare all amounts outstanding to be immediately due and payable, proceed against the collateral in which we granted to the lender a security interest under the Senior Credit Facility, or otherwise exercise the rights of a secured creditor. Amounts outstanding under the Senior Credit Facility are secured by substantially all of our assets and those of our subsidiaries, excluding certain specified assets but including proceeds from those assets.

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operations.
Intellectual Property Risks

If we fail to adequately protect or enforce our intellectual property rights, or secure rights to patents of others, the value of those rights would diminish.

diminish, and if we fail to secure the rights to patents of others, it could adversely affect our business.

Our success will depend in part on our ability and the abilities of our partners to obtain, protect and enforce viable intellectual property rights including, but not limited to, trade name, trademark and patent protection for our Company and its products, methods, processes and other technologies we may license or develop, to preserve our trade secrets, and to operate without infringing the proprietary rights of third parties both domestically and abroad. The patent position of biotechnology and pharmaceutical companies is generally highly uncertain, involves complex legal and factual questions and has recently been the subject of much litigation. Neither the United States Patent and Trademark Office (“USPTO”), the Patent Cooperation Treaty offices, nor the courts of the United States and other jurisdictions have consistent policies nor predictable rulings regarding the breadth of claims allowed or the degree of protection afforded under many biotechnology and pharmaceutical patents. Further, we may not have worldwide patent protection for all of our product candidates and our intellectual property rights may not be legally protected or enforceable in all countries throughout the world. In some jurisdictions, some of our product candidates in certain programs, including our HAE program, may have short or no composition of matter patent life and we may therefore rely on orphan drug exclusivity or data exclusivity. There can be no assurance that we will obtain orphan drug exclusivity or data exclusivity in every jurisdiction. Further, in some jurisdictions, we may rely on formulation patents or method of use patents. Both the ability to achieve issuance and the enforcement of formulation and method of use patents can be highly uncertain and can vary from jurisdiction to jurisdiction, and such patents may therefore not adequately prevent competitors and potential infringers in some
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jurisdictions. The validity, scope, enforceability and commercial value of the rights protected by such patents, therefore, is highly uncertain.

We also rely on trade secrets to protect technology in cases when we believe patent protection is not appropriate or obtainable. However, trade secrets are difficult to protect. If we cannot maintain the confidentiality of our technology and other confidential information in connection with our collaborators and advisors, our ability to receive patent protection or protect our proprietary information may be imperiled.

We may be involved in lawsuitslegal proceedings to protect or enforce our patents, the patents of our partners or our other intellectual property rights, which could be expensive, time consuming and unsuccessful ..

unsuccessful.

Competitors may infringe or otherwise violate our patents, the patents of our licensors or our other intellectual property rights. To counter infringement or unauthorized use, we may be required to file legal claims, which can be expensive, and time-consuming, and unsuccessful. An adverse result in any litigation or defenselegal proceeding could put one or more of our patents at risk. Our success depends in part on avoiding the infringement of other parties’ patents and other intellectual property rights as well as avoiding the breach of any licenses relating to our technologies and products. In the United States, patent applications filed in recent years are confidential for 18 months, while older applications are not published until the patent issues. As a result, avoiding patent infringement may be difficult and we may inadvertently infringe third-party patents or proprietary rights. These third parties could bring claims against us, our partners or our licensors that even if resolved in our favor, could cause us to incur substantial expenses and, if resolved against us, could additionally cause us to pay substantial damages. Further, if a patent infringement suit were brought against us, our partners or our licensors, we or they could be forced to stop or delay research, development, manufacturing or sales of any infringing product in the country or countries covered by the patent we infringe, unless we can obtain a license from the patent holder. Such a license may not be available on acceptable terms, or at all, particularly if the third party is developing or marketing a product competitive with the infringing product. Even if we, our partners or our licensors were able to obtain a license, the rights may be nonexclusive, which would give our competitors access to the same intellectual property.

If we or our partners are unable or fail to adequately initiate, protect, defend or enforce our intellectual property rights in any area of commercial interest or in any part of the world where we wish to seek regulatory approval for our products, methods, processes and other technologies, the value of theour products and product candidates to produce revenue would diminish. Additionally, if our products, methods, processes, and other technologies or our commercial use of such products, processes, and other technologies, including, but not limited to, any trade name, trademark or commercial strategy infringe the proprietary rights of other parties, we could incur substantial costs. The USPTO and the patent offices of other jurisdictions have issued to us a number of patents for our various inventions, and we have in-licensed several patents from various institutions. We have filed additional patent applications and provisional patent applications with the USPTO. We have filed a number of corresponding foreign patent applications and intend to file additional foreign and U.S. patent applications, as appropriate. We have also filed certain trademark and trade name applications worldwide. We cannot assure you as to:

the degree and range of protection any patents will afford against competitors with similar products;
if and when patents will issue;
if patents do issue we cannot be sure that we will be able to adequately defend such patents and whether or not we will be able to adequately enforce such patents; or
whether or not others will obtain patents claiming aspects similar to those covered by our patent applications.

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the degree and range of protection any patents will afford against competitors with similar products;

if and when patents will issue;
if patents do issue, we cannot be sure that we will be able to adequately defend such patents and whether or not we will be able to adequately enforce such patents; or
whether or not others will obtain patents claiming aspects similar to those covered by our patent applications.
If the USPTO or other foreign patent office upholds patents issued to others or if the USPTO grants patent applications filed by others, we may have to:

obtain licenses or redesign our products or processes to avoid infringement;
stop using the subject matter claimed in those patents; or
pay damages.

obtain licenses or redesign our products or processes to avoid infringement;
stop using the subject matter claimed in those patents; or
pay damages.
We may initiate, or others may bring against us, litigation or administrative proceedings related to intellectual property rights, including proceedings before the USPTO or other foreign patent office. Any judgment adverse to us in any litigation or other proceeding arising in connection with a patent or patent application could materially and adversely affect our business, financial condition and results of operations. In addition, the costs of any suchlitigation or administrative proceeding may be substantial whether or not we are successful.

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Our success is also dependent upon the skills, knowledge and experience, none of which is patentable, of our scientific and technical personnel. To help protect our rights, we require all employees, consultants, advisors and partners to enter into confidentiality agreements that prohibit the disclosure of confidential information to anyone outside of our companyCompany and require disclosure and assignment to us of their ideas, developments, discoveries and inventions. These agreements may not provide adequate protection for our trade secrets, know-how or other proprietary information in the event of any unauthorized use or disclosure or the lawful development by others of such information, and if any of our proprietary information is disclosed, our business will suffer because our revenues depend upon our ability to license or commercialize our products and product candidates and any such events would significantly impair the value of such products and product candidates.

Our failure to comply with data protection laws and regulations could lead to government enforcement actions and significant penalties against us and adversely impact our operating results.

European Union (“EU”) Member States, Switzerland and other countries have adopted data protection laws and regulation, which impose significant compliance obligations. For example, the EU Data Protection Directive, as implemented into national laws by the EU Member States, imposes strict obligations and restrictions on the ability to collect, analyze and transfer personal data, including health data from clinical trials and adverse event reporting. Data protection authorities from the different EU Member States may interpret the EU Data Protection Directive and national laws differently, which adds to the complexity of processing personal data in the European Union, and guidance on implementation and compliance practices is often updated or otherwise revised. Our failure to comply with these laws and regulations could lead to government enforcement actions and significant penalties against us and adversely impact our operating results. 

We are subject to litigation, which could result in losses or unexpected expenditure of time and resources. 

From time to time, we may be called upon to defend ourselves against lawsuits relating to our business. Due to the inherent uncertainties in litigation, we cannot accurately predict the ultimate outcome of any such proceedings. An unfavorable outcome in any such proceedings could have an adverse impact on our business, financial condition and results of operations. If our stock price is volatile, we may become involved in securities class action lawsuits in the future. Any litigation in the future, regardless of its merits, could result in substantial costs and a diversion of management’s attention and resources that are needed to successfully run our business.

Product Liability Risks
We face an inherent risk of liability in the event that the use or misuse of our products or product candidates results in personal injury or death, and our product liability insurance coverage may be insufficient.

If the use or misuse of peramivir, forodesine or any other regulatory body-approved products we sell, or a partner may sell in the futuresells, harms people, we may be subject to costly and damaging product liability claims brought against us by consumers, healthcare providers, pharmaceutical companies, third-party payors or others. The use of our product candidates in clinical trials, including post marketingpost-marketing clinical studies, could also expose us to product liability claims. We cannot predict all of the possible harms or side effects that may result from the use of our products or the testing of product candidates, and therefore, the amount of insurance coverage we currently have may not be adequate to cover all liabilities or defense costs we might incur. A product liability claim or series of claims brought against us could give rise to a substantial liability that could exceed our resources. Even if claims are not successful, the costs of defending such claims and potential adverse publicity could be harmful to our business.

We face an inherent risk of product liability exposure related to the testing of our product candidates in human clinical trials and will face even greater risks upon any commercialization by us of our products or product candidates. We have product liability insurance covering our clinical trials. Clinical trial and product liability insurance is becoming increasingly expensive. As a result, we may be unable to obtain sufficient insurance or increase our existing coverage at a reasonable cost to protect us against losses that could have a material adverse effect on our business. An individual may bring a product liability claim against us if one of our products or product candidates causes, or is claimed to have caused, an injury or is found to be unsuitable for consumer use. Any product liability claim brought against us, with or without merit, could result in:

liabilities that substantially exceed our product liability insurance, which we would then be required to pay from other sources, if available;

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an increase of our product liability insurance rates or the inability to maintain insurance coverage in the future on acceptable terms, or at all;
withdrawal of clinical trial volunteers or patients;
damage to our reputation and the reputation of our products, resulting in lower sales;
regulatory investigations that could require costly recalls or product modifications;
litigation costs; and
the diversion of management’s attention from managing our business.

Insurance coverage is increasingly morein the future on acceptable terms, or at all;

withdrawal of clinical trial volunteers or patients;
damage to our reputation and the reputation of our products, resulting in lower sales;
regulatory investigations that could require costly recalls or product modifications;
litigation costs; and
the diversion of management’s attention from managing our business.
Risks Relating to Contractual Arrangements
We face risks related to our government-funded programs and difficultare subject to obtainvarious U.S. Government contract requirements, which may create a disadvantage and additional risks to us.
We have contracts with BARDA/HHS and NIAID/HHS for the development of galidesivir as a treatment for diseases caused by RNA pathogens, including Marburg virus disease, Yellow Fever and Ebola virus disease. In contracting with these government agencies, we are subject to various U.S. Government contract requirements, including general clauses for a cost-reimbursement research and development contract, which may limit our reimbursement. While all government funding for galidesivir expired in 2022, we still face risks related to our U.S. Government contracts.
U.S. Government contracts typically contain a number of extraordinary provisions that would not typically be found in commercial contracts and which may create a disadvantage and additional risks to us as compared to competitors that do not rely on U.S. Government contracts. These risks include the ability of the U.S. Government to unilaterally:
terminate or maintain.

Whilereduce the scope of our contract with or without cause;

interpret relevant regulations (federal acquisition regulation clauses);
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require performance under circumstances which may not be favorable to us;
require an in-process review where the U.S. Government will review the project and its options under the contract;
control the timing and amount of funding, which impacts the development progress of our programs; and
audit and object to our contract-related costs and fees, including allocated indirect costs.
Upon termination or expiration of a contract, the U.S. Government may dispute wind-down and termination costs and may question prior expenses under the contract and deny payment of those expenses. Should we currentlychoose to challenge the U.S. Government for denying certain payments under a contract, such a challenge could subject us to substantial additional expenses which we may or may not recover.
In addition, as a U.S. Government contractor, we are required to comply with applicable laws, regulations and standards relating to our accounting practices and are subject to periodic audits and reviews, including a final financial audit. As part of any such audit or review, the U.S. Government may review the adequacy of, and our compliance with, our internal control systems and policies, including those relating to our purchasing, property, estimating, compensation and management information systems. Audits under the BARDA/HHS and NIAID/HHS galidesivir contracts may occur at the election of the U.S. Government and have insurancebeen concluded through fiscal 2019; all subsequent fiscal years are still open and auditable. Based on the results of its audits, the U.S. Government may adjust our contract-related costs and fees, including allocated indirect costs. This adjustment could impact the amount of revenues reported on a historic basis. In addition, in the event BARDA/HHS or NIAID/HHS determines that certain costs and fees were unallowable or determines that the allocated indirect cost rate was higher than the actual indirect cost rate, BARDA/HHS or NIAID/HHS would be entitled to recoup any overpayment from us as a result. In addition, if an audit or review uncovers any improper or illegal activity, we may be subject to civil and criminal penalties and administrative sanctions, including forfeiture of profits, suspension of payments, fines and suspension or prohibition from doing business with the U.S. Government. We could also suffer serious harm to our reputation if allegations of impropriety were made against us. In addition, under U.S. Government purchasing regulations, some of our costs may not be reimbursable or allowed under our contracts. Further, as a U.S. Government contractor, we are subject to an increased risk of investigations, criminal prosecution, civil fraud, whistleblower lawsuits and other legal actions and liabilities as compared to private sector commercial companies.
There are risks related to the potential government use or sale of our antivirals.
Government use or sale, in emergency situations or otherwise, of our antivirals (including peramivir for the treatment of influenza) may result in risks to us or our collaborative partners. There can be no assurance that government use of our antivirals (whether as indicated or outside of their current indications) will prove to be generally safe, well-tolerated and effective. Any government sale or use (on an emergency basis or otherwise) of our antivirals in any country may create liabilities for us or our partners.
There can be no assurance that we or our manufacturers will be able to fully meet the demand for our business,antivirals with respect to any future arrangements. Further, we may not receive a favorable purchase price for future orders, if any, of our antivirals by governmental entities. Our competitors may develop products that could compete with or replace any antivirals selected for government sale or use. We may face competition in markets where we have no existing intellectual property directorsprotection or are unable to successfully enforce our intellectual property rights.
There can be no assurance that the non-U.S. partnerships that we have entered into for peramivir will result in any order for peramivir in those countries or that peramivir will be approved for any use or will achieve market approval in additional countries. In the event that any emergency use or market approval is granted in any country, there can be no assurance that any government order or commercialization of the applicable product or product candidate in such countries will be substantial or will be profitable to us.
If we fail to reach milestones or to make annual minimum payments or otherwise breach our obligations under our license agreements, our licensors may terminate our agreements with them and/or seek additional remedies.
If we are unable or fail to meet payment obligations, performance milestones relating to the timing of regulatory filings, product supply obligations, post-approval commitments, or development and officers,commercial diligence obligations; are unable or fail to make milestone payments or material data use payments in accordance with applicable provisions; or fail to pay the minimum annual payments under any of our in-licenses relating to our products or product candidates, our licensors may terminate the applicable license and/or seek other available remedies. As a result, our development of the respective product candidate or commercialization of the product would cease.
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Because continuing events of default exist under the PhaRMA Notes, the holders of the PhaRMA Notes may be able to foreclose on the collateral securing the PhaRMA Notes and our products, insurance is increasingly more costlyequity interest in Royalty Sub. As a result, we may not realize the benefit of future royalty payments, if any, that might otherwise accrue to us following repayment of the PhaRMA Notes and narrowerwe could otherwise be adversely affected.
In March 2011, JPR Royalty Sub LLC, our wholly-owned subsidiary (“Royalty Sub”), issued $30.0 million in scope,aggregate principal amount of PhaRMA Senior Secured 14.0% Notes due on December 1, 2020 (the “PhaRMA Notes”). The PhaRMA Notes are secured principally by (i) certain royalty and milestone payments under our agreement with Shionogi (the “Shionogi Agreement”), pursuant to which Shionogi licensed from us the rights to market peramivir in Japan and Taiwan and (ii) the pledge by us of our equity interest in Royalty Sub. Payments, if any, from Shionogi to us on non-governmental sales under the Shionogi Agreement will generally not be available to us for other purposes unless and until Royalty Sub has repaid in full its obligations under the PhaRMA Notes. Accordingly, these funds have been and will continue to be required to be dedicated to Royalty Sub’s debt service and not available to us for product development or other purposes. Since September 1, 2014, payments from Shionogi have been insufficient for Royalty Sub to service its obligations under the PhaRMA Notes, resulting in a continuing event of default with respect to the PhaRMA Notes since that time. In addition, the PhaRMA Notes had a final legal maturity date of December 1, 2020, at which time the outstanding principal amount of the PhaRMA Notes of $30.0 million, together with accrued and unpaid interest of $20.6 million, was due in full. The failure by Royalty Sub to repay these amounts at the maturity date constituted an additional event of default under the PhaRMA Notes. As Royalty Sub has been unable to service its obligations under the PhaRMA Notes and continuing events of default exist under the PhaRMA Notes, the holders of the PhaRMA Notes may be able to foreclose on the collateral securing the PhaRMA Notes and our equity interest in Royalty Sub and may exercise other remedies available to them under the indenture or other documents related to the PhaRMA Notes. In such event, we may not realize the benefit of future royalty payments, if any, that might otherwise accrue to us following repayment of the PhaRMA Notes, we may incur legal costs, and we might otherwise be adversely affected.
We cannot predict whether holders of PhaRMA Notes will seek to pursue any remedies as a result of the continuing events of default with respect to the PhaRMA Notes. The PhaRMA Notes are the obligation of Royalty Sub. Due to the non-recourse nature of the PhaRMA Notes, in the event of any potential foreclosure, we believe the primary impact to us would be the loss of future royalty payments, if any, from Shionogi and the legal costs associated with retiring the PhaRMA Notes. As a result, we do not currently expect the continuing events of default on the PhaRMA Notes to have a significant impact on our future results of operations or cash flows. However, we cannot assure you that this will be the case or that we will not otherwise be adversely affected as a result of the continuing events of default under the PhaRMA Notes or the failure by Royalty Sub to repay the PhaRMA Notes at maturity.
We wrote off the balance due under the PhaRMA Notes to other income as a debt extinguishment as of December 31, 2021. See “Note 8—Royalty Monetizations—RAPIACTA—Non-Recourse Notes Payable−Debt Extinguishment” in the Notes to Consolidated Financial Statements in Part II, Item 8 of our most recent Annual Report on Form 10-K for additional information about the write-off.
We have incurred significant indebtedness, which could adversely affect our business. Additionally, the Pharmakon Loan Agreement contains conditions and restrictions that limit our flexibility in operating our business. We may be required to assume more riskmake a prepayment or repay our outstanding indebtedness earlier than we expect if a prepayment event or an event of default occurs, including a material adverse change with respect to us, which could have a material adverse effect on our business.
On April 17, 2023, we entered into the $450 million Pharmakon Loan Agreement and closed on an initial term loan thereunder in the future. If we are subject to claims or suffer a loss or damage in excessprincipal amount of our insurance coverage,$300 million. Under the new Pharmakon Loan Agreement, we will be required to bearpay to Pharmakon, for the account of the lenders, a prepayment premium or a make-whole premium, as applicable, plus certain fees or expenses set forth in the Pharmakon Loan Agreement in the event that we prepay or repay, or are required to prepay or repay, voluntarily or pursuant to a mandatory prepayment obligation under the Pharmakon Loan Agreement (e.g., upon a change of control of the Company and specified other events, subject to certain exceptions), all of the then-outstanding term loans under the Pharmakon Loan Agreement, in each case, subject to certain exceptions set forth in the Pharmakon Loan Agreement.
Our indebtedness could have important consequences to our stockholders. For example, it:
increases our vulnerability to adverse general economic or industry conditions;
limits our flexibility in planning for, or reacting to, changes in our business or the industry in which we operate;
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makes us more vulnerable to increases in interest rates, as borrowings under the Pharmakon Loan Agreement are at variable rates;
requires us to dedicate a portion of our cash flow from operations to interest payments, limiting the availability of cash for other purposes;
limits our ability to obtain additional financing or refinancing in the future for working capital or other purposes; and
places us at a competitive disadvantage compared to our competitors that have less indebtedness.
Furthermore, the Pharmakon Loan Agreement contains various covenants that limit our ability to engage in specified types of transactions. Subject to certain exceptions, these covenants limit our ability to, among other things, dispose of assets; engage in certain mergers, acquisitions, and similar transactions; incur additional indebtedness; grant liens; make investments; pay dividends or make distributions or certain other restricted payments in respect of equity; prepay other indebtedness; enter into restrictive agreements; undertake fundamental changes; or amend certain material contracts.
The covenants contained in the Pharmakon Loan Agreement could cause us to be unable to pursue business opportunities that we or our stockholders may consider beneficial without the lenders’ permission or without repaying all outstanding obligations under the Pharmakon Loan Agreement.
A breach of any lossof these covenants could result in an event of default under the Pharmakon Loan Agreement. An event of default will also occur if, among other things, we fail to pay amounts due under the Pharmakon Loan Agreement, we fail to repay certain other indebtedness having an aggregate principal amount in excess of a threshold amount, a material adverse change in our insurance limits. Ifbusiness, assets, properties, liabilities, or condition occurs, or a material impairment of our ability to perform our obligations under the Pharmakon Loan Agreement occurs, certain negative regulatory events occur, including without limitation certain withdrawal events with respect to ORLADEYO, or we fail to make required payments under our Royalty Purchase Agreements. In the case of a continuing event of default under the Pharmakon Loan Agreement, the lenders under the Pharmakon Loan Agreement could elect to declare all amounts outstanding to be immediately due and payable, proceed against the collateral in which we granted to the lenders a security interest, or otherwise exercise the rights of a secured creditor. Amounts outstanding under the Pharmakon Loan Agreement are secured by a security interest in, subject to claims or suffer a loss or damage that is outsidecertain exceptions, substantially all of our insurance coverage, weassets. Because substantially all of our assets are pledged to secure the Pharmakon Loan Agreement obligations, our ability to incur additional secured indebtedness or to sell or dispose of assets to raise capital may incur significant uninsured costs associated with loss or damage thatbe impaired, which could have an adverse effect on our financial flexibility.
Risks Relating to International Operations
International expansion of our business exposes us to business, legal, regulatory, political, operational, financial, and economic risks.
Our business strategy includes international expansion, including the commercialization of products outside of the United States. In addition, we currently conduct clinical studies and regulatory activities and have hired, and expect to continue hiring, employees outside of the United States. Doing business internationally involves a number of risks, including, but not limited to:
multiple, conflicting, and changing laws and regulations such as privacy and data regulations, transparency regulations, tax laws, export and import restrictions, employment laws, regulatory requirements, and other governmental approvals, permits, and licenses;
introduction of new health authority requirements and/or changes in health authority expectations;
failure by us or our partners to obtain and maintain regulatory approvals for the use of our products in various countries;
complexities and difficulties in obtaining and maintaining protection for, and enforcing, our intellectual property;
difficulties in staffing and managing foreign operations;
complexities associated with managing multiple payor reimbursement regimes, government payors, or patient self-pay systems;
limits on our ability to penetrate international markets;
financial risks, such as longer payment cycles, difficulty collecting accounts receivable, the impact of local and regional financial crises on demand and payment for our products, and exposure to foreign currency exchange rate fluctuations, which have been increasingly prevalent alongside a fluctuating U.S. dollar;
natural disasters and political and economic instability, including wars (e.g., the conflict in Ukraine), terrorism, political unrest, results of certain elections and votes, actual or threatened public health
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emergencies and outbreak of disease (e.g., the ongoing COVID-19 pandemic), boycotts, adoption or expansion of government trade restrictions, and other business restrictions;
certain expenses including, among others, expenses for travel, translation, and insurance;
regulatory and compliance risks that relate to maintaining accurate information and control over commercial operations and financial position. Furthermore,activities that may fall within the purview of the U.S. Foreign Corrupt Practices Act, including its books and records provisions or anti-bribery provisions, or the U.K. Bribery Act and similar foreign laws and regulations; and
regulatory and compliance risks relating to doing business with any claims madeentity that is subject to sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury.
Any of these factors could significantly harm our international expansion of operations and adversely affect our business and results of operations.
Additionally, in some countries, such as Japan and the countries of the European Union, the pricing of prescription pharmaceuticals is subject to governmental control and access. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we or our partners may be required to conduct a clinical trial that compares the cost-effectiveness of our product to other available therapies. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our business could be materially harmed.
Foreign currency exchange rate fluctuations could have an adverse impact on our insurance policiesresults of operations, financial position, and cash flows.

We conduct operations in many countries outside of the United States involving transactions in a variety of currencies other than the U.S. dollar. These transactions include, without limitation, commercial sales, contract manufacturing, and clinical trial activities. Although most of our revenues and expenses are denominated in U.S. dollars, our commercial sales in Europe are primarily denominated in Euros and British Pounds. In addition, our royalties from Torii are derived from Torii’s sales of ORLADEYO in Japan, which sales are denominated in Japanese yen and converted into U.S. dollars for purposes of determining the royalty owed to us. We also have foreign currency exposure to fluctuations in other foreign currencies, such as the Swiss Franc, Danish Krone, Swedish Krona, and the Canadian Dollar. Changes in the value of these currencies relative to the U.S. dollar may impact our consolidated operating results, including our revenues and expenses, causing fluctuations in our operating results from period to period and/or resulting in foreign currency transaction losses that adversely impact our results of operations, financial position, and cash flows. As we continue to expand our operations internationally, our exposure to foreign currency transaction gains or losses may become more significant. See “Quantitative and Qualitative Disclosures about Market Risk—Foreign Currency Risk” in Part I, Item 3 of this report for additional information about our foreign currency risk.
Our actual or perceived failure to comply with European governmental laws and regulations and other legal obligations related to privacy, data protection and information security could harm our business.
EU member states, the United Kingdom, Switzerland and other countries have adopted data protection laws and regulations, which impose significant compliance obligations. These laws include the GDPR and similar national legislation, the EU Clinical Trials Regulation, and the e-Privacy Directive (2002/58/EC), and are discussed in more detail in “Business—Government Regulation—Data Privacy and Security Laws” in Part I, Item 1 of our most recent Annual Report on Form 10-K. Failure to comply with the requirements of the GDPR or related national data protection laws, which may deviate from the GDPR, may result in significant fines of up to 4% of global revenues, or €20.0 million, whichever is greater, and in addition to such fines, our failure to comply with the requirements of GDPR or similar national legislation may subject us to litigation and/or adverse publicity, which could have material adverse effects on our reputation and business. As a result of the implementation of the GDPR, we are required to put in place additional mechanisms to ensure compliance with the data protection rules. For example, the GDPR requires us to make more detailed disclosures to data subjects, requires disclosure of the legal basis on which we can process personal data, makes it harder for us to obtain valid consent for processing, requires the appointment of a data protection officer where sensitive personal data (i.e., health data) is processed on a large scale, introduces mandatory data breach notification throughout the European Union, imposes additional obligations on us when we are contracting with service providers and requires us to adopt appropriate privacy governance including policies, procedures, training and data audit.
We depend on a number of third parties in relation to the provision of our services, a number of which process personal data of EU individuals on our behalf. With each such provider, we are required to enter into contractual arrangements under which they are contractually obligated to only process personal data according to our instructions, and conduct diligence to ensure that they have sufficient technical and organizational security measures in place. Compliance
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with the requirements imposed by the GDPR and other such laws can be time-consuming, expensive and difficult, and may increase our cost of doing business or require us to change our business practices, and despite our efforts we may not be successful in achieving compliance if our personnel, collaborators, partners or vendors do not comply with applicable data protection obligations.
We are also subject to evolving European privacy laws on electronic marketing and cookies. The European Union is in the process of replacing the e-Privacy Directive (2002/58/EC) with a new set of rules taking the form of a regulation that will be directly implemented in the laws of each EU member state. While this e-Privacy Regulation was originally intended to be adopted on May 25, 2018, it is still going through the European legislative process and the timing of its adoption remains unclear.
The United Kingdoms decision to withdraw from the European Union could result in increased regulatory and legal complexity, which may make it more difficult for us to do business in Europe and impose additional challenges in securing regulatory approval of our product candidates in Europe.
The United Kingdom’s exit from the European Union, or Brexit, has caused political and economic uncertainty, including in the regulatory framework applicable to our operations and product candidates, and this uncertainty may persist for years. Brexit could, among other outcomes, disrupt the free movement of goods, services and people between the United Kingdom and the European Union, and result in increased legal and regulatory complexities, as well as potential higher costs of conducting business in Europe. The long-term effects of Brexit will depend in part on how the current and future trade agreements between the United Kingdom and the European Union take effect in practice. Changes in U.K. or EU regulations may cause disruption or delays in granting clinical trial authorization or opinions for marketing authorization, disruption of importation and export of active substance and other components of new drug formulations, and disruption of the supply chain for clinical trial product and final authorized formulations.
The cumulative effects of the disruption to the regulatory framework may add considerably to the development lead time to marketing authorization and commercialization of products in the European Union and/or the United Kingdom. It is possible that there will be increased regulatory complexities, which can disrupt the timing of our clinical trials and regulatory approvals. In addition, changes in, and legal uncertainty with regard to, national and international laws and regulations may present difficulties for our clinical and regulatory strategy. Any delay in obtaining, or an inability to obtain, any marketing approvals, as a result of Brexit or otherwise, would prevent us from commercializing our product candidates in the United Kingdom and/or the European Union and restrict our ability to obtain or maintain insurance coverage at reasonable costs or at all. 

generate revenues and achieve and sustain profitability.

In addition, as a result of Brexit, other European countries may seek to conduct referenda with respect to their continuing membership with the European Union. Given these possibilities and others we may not anticipate, as well as the absence of comparable precedent, it is unclear what financial, regulatory and legal implications the withdrawal of the United Kingdom from the European Union will have and how such withdrawal will affect us, and the full extent to which our business could be adversely affected.
Risks Relating to Technology
If our facility incursfacilities, or the facilities of our third-party vendors, incur damage or power is lost for a significant length of time, our business will suffer.

We and our third-party vendors store commercial product, clinical and stability samples at our facilityfacilities that could be damaged if our facility incursthe facilities incur physical damage or in the event of an extended power failure. We have backup power systems in addition to backup generators to maintain power to all critical functions, but any loss of these products or samples could result in significant delays in our commercialization or drug development process.

In addition, we store most of our preclinical and clinical data at our facilities. Duplicate copies of most critical data are secured off-site. Any significant degradation or failure of our computer systems could cause us to inaccurately calculate or lose our data. Loss of data could result in significant delays in our drug development process, and any system failure could harm our business and operations.

A significant disruption in our or our third-party vendors’ information technology systems or a cyber-securitycybersecurity breach could adversely affect our business.

We are increasingly dependent on information technology systems to operate our business. In addition, the FDA and comparable foreign regulatory authorities regulate, among other things, the record keeping and storage of data pertaining to
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potential pharmaceutical products. We currently store most of our preclinical research data, our clinical data and our manufacturing data at our facilities. While we do store duplicate copies of most of our clinical data offsite and a significant portion of our data is included in regular backups of our systems, we could lose important data if our facilities incur damage, or if our vendor data systems fail, suffer damage or are destroyed. In addition, we have outsourced significant parts of our information technology and business infrastructure to third-party providers, and we currently use these providers to perform business critical information technology and business services for us. We are therefore vulnerable to cybersecurity attacks and incidents on the associated networks and systems, whether they are managed by us directly or by the third parties with whom we contract, and we have experienced and may in the future experience such cybersecurity threats and attacks.
Like other companies in our industry, our networks and infrastructure may be vulnerable to cyber-attacks or intrusions, including by computer hackers, foreign governments, foreign companies, or competitors, or may be breached by employee error, malfeasance or other disruption. These risks have increased as we have experienced significant growth in the number of our employees and the scope of our operations and as virtual and remote working have become more widely used, and sensitive data is accessed by employees working in less secure, home-based environments. A breakdown, invasion, corruption, destruction, or interruption of critical information technology systems could negatively impact operations. If our systems are damaged, fail to function properly or otherwise become unavailable, we may incur substantial costs to repair or replace them, and we may experience loss of critical data and interruptions or delays in our ability to perform critical functions, which could adversely affect our business, financial condition or results of operations. Any compromise of our data security could also result in a violation of applicable privacy and other laws, significant legal and financial exposure, damage to our reputation, loss or misuse of the information and a loss of confidence in our data security measures, which could harm our business. There can be no assurance that our efforts to protect our data and information technology systems will prevent breakdowns or breaches in our systems, or those of third parties with which we do business, and any such events could adversely affect our business.

If we fail

Risks Relating to retain our existing key personnel or fail to attract and retain additional key personnel, the development of our product candidates and commercialization of our products and the related expansion of our business will be delayed or stopped.

We are highly dependent upon our senior management and scientific team, the unexpected loss of whose services might impede the achievement of our development and commercial objectives. Competition for key personnel with the experience that we require is intense and is expected to continue to increase.Investing in Our inability to attract and retain the required number of skilled and experienced management, commercial, operational and scientific personnel will harm our business because we rely upon these personnel for many critical functions of our business. 

If because of our use of hazardous materials, we violate any environmental controls or regulations that apply to such materials, we may incur substantial costs and expenses in our remediation efforts.

Our research and development involves the controlled use of hazardous materials, chemicals and various radioactive compounds. We are subject to federal, state and local laws and regulations governing the use, storage, handling and disposal of these materials and some waste products. Accidental contamination or injury from these materials could occur. In the event of an accident, we could be liable for any damages that result and any liabilities could exceed our resources. Compliance with environmental laws and regulations or a violation of such environmental laws and regulations could require us to incur substantial unexpected costs, which would materially and adversely affect our results of operations. 

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Common Stock

Risks relating to investing in our common stock

Our existing principal stockholders hold a substantial amount of our common stock and may be able to influence significant corporate decisions, which may conflict with the interest of other stockholders.

Several

Some of our stockholders own greater than 5% of our outstanding common stock. Our top ten stockholders own more thanapproximately 50% of BioCrystour common stock and can individually, and as a group, influence our operations based upon their concentrated ownership. These stockholders, if they act together,ownership and may also be able to influence the outcome of matters requiring approval of the stockholders, including the election of our directors and other corporate actions.

Our stock price has been, and is likely to continue to be, highly volatile, which could cause the value of an investment in our common stock to decline significantly.

The market prices for securities of biotechnology companies in general have been highly volatile and may continue to be highly volatile in the future. Moreover, our stock price has fluctuated frequently, and these fluctuations are often not related to our financial results. For the twelve months ended September 30, 2017,March 31, 2023, the 52-week range of the market price of our stock was from $2.82$7.61 to $9.25$18.00 per share. The following factors, in addition to other risk factors described in this section, may have, and in some cases have had, a significant impact on the market price of our common stock:

announcements of technological innovations or new products by us or our competitors;
developments or disputes concerning patents or proprietary rights;
additional dilution through sales of our common stock or other derivative securities;

status of new or existing licensing or collaborative agreements and government contracts;
announcements relating to the status of our programs;
developments and announcements regarding new and virulent strains of influenza;
we or our partners achieving or failing to achieve development milestones;
publicity regarding actual or potential medical results relating to products under development by us or our competitors;
publicity regarding certain public health concerns for which we are or may be developing treatments;
regulatory developments in both the United States and foreign countries;
public concern as to the safety of pharmaceutical products;
actual or anticipated fluctuations in our operating results;
changes in financial estimates or recommendations by securities analysts;
changes in the structure of healthcare payment systems, including developments in price control legislation;
announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures or capital commitments;
additions or departures of key personnel or members of our board of directors;
purchases or sales of substantial amounts of our stock by existing stockholders, including officers or directors;
economic and other external factors or other disasters or crises; and
period-to-period fluctuations in our financial results.

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announcements of technological innovations or new products by us or our competitors;

developments or disputes concerning patents or proprietary rights;
additional dilution through sales of our common stock or other derivative securities;
status of new or existing licensing or collaborative agreements and government contracts;
announcements relating to the status of our programs;
us or our partners achieving or failing to achieve development milestones;
publicity regarding actual or potential medical results relating to products under development by us or our competitors;
publicity regarding certain public health concerns for which we are or may be developing treatments;
regulatory developments in both the United States and foreign countries;
public concern as to the safety of pharmaceutical products;
actual or anticipated fluctuations in our operating results;
changes in financial estimates or recommendations by securities analysts and the comparison of such estimates to our actual results;
changes in our public guidance;
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changes in the structure of healthcare payment systems, including developments in price control legislation;
announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures, capital commitments or other monetization transactions;
additions or departures of key personnel or members of our board of directors;
purchases or sales of substantial amounts of our stock by existing stockholders, including officers or directors;
economic and other external factors or other disasters or crises; and
period-to-period fluctuations in our financial results.
This volatility could cause the value of an investment in our common stock to decline significantly. In addition, companies that have experienced volatility in the market price of their stock in the past have been subject to securities class action litigation. Securities litigation, and any other type of litigation, brought against us could result in substantial costs and divert our management’s attention from other business concerns, which could seriously harm our business and adversely affect our results of operations.
Future sales and issuances of securities may dilute the ownership interests of our current stockholders and cause our stock price to decline.

Future sales of our common stock by us or our current stockholders into the public market could cause the market price of our stock to fall. As of October 31, 2017,April 28, 2023, there were 98,404,761188,934,787 shares of our common stock outstanding. We may from time to time issue securities in relation to a license arrangement, collaboration, merger or acquisition. We may also sell, for our own account, shares of common stock or other equity securities, from time to time at prices and on terms to be determined at the time of sale.

As of October 31, 2017,April 28, 2023, there were 13,530,57234,185,014 stock options and restricted stock units outstanding 1,606,959and 11,740,717 shares available for issuance under our Amended and Restated Stock Incentive Plan (inclusive of the 7,000,000 shares that are subject to stockholder approval at our annual meeting of stockholders to be held on June 13, 2023), 6,185,479 stock options and 330,270restricted stock units outstanding and 480,621 shares available for issuance under our Amended and Restated Inducement Equity Incentive Plan, and 5,616,817 shares available for issuance under our Amended and Restated Employee Stock Purchase Plan. In addition, we could also make equity compensation grants outside of our Amended and Restated Stock Incentive Plan or Amended and Restated Inducement Equity Incentive Plan. The shares underlying existing stock options, restricted stock units and possible future stock options, stock appreciation rights and stock awards have been or will be, as applicable, registered pursuant to registration statements on Form S-8.

If some or all of such shares are sold or otherwise issued into the public market over a short period of time, our current stockholders’ ownership interests may be diluted and the value of all publicly traded shares is likely to decline, as the market may not be able to absorb those shares at then-current market prices. Additionally, such sales and issuances may make it more difficult for us to sell equity securities or equity-related securities in the future at a time and price that our management deems acceptable, or at all.

In March 2017, we entered into a Registration Rights Agreement with entities affiliated with Baker Bros. Advisors LP (the “Baker Entities”) to provide that, if requested, we will register the shares of our common stock beneficially owned by the Baker Entities for resale under the Securities Act.Act of 1933, as amended (the “Securities Act”). Our registration obligations pursuant to the Registration Rights Agreement cover all shares then held or thereafter acquired by the Baker Entities, for up to ten years, and include our obligation to facilitate certain underwritten public offerings of our common stock by the Baker Entities in the future. On May 10, 2017, we filed a registration statement on Form S-3 with respect to 11,710,951 shares of common stock held by the Baker Entities. Subsequently, on November 21, 2019, certain of the Baker Entities acquired pre-funded warrants to purchase 11,764,706 shares of our common stock at a price of $1.69 per warrant, of which warrants to purchase 11,511,472 shares of our common stock remain outstanding. In addition, on June 1, 2020, we issued to certain of the Baker Entities pre-funded warrants to purchase 3,511,111 shares of our common stock at a price of $4.49 per warrant. Each warrant has an exercise price of $0.01 per share. If the Baker Entities, by exercising their underwritingregistration rights or otherwise, sell a large number of our shares, or the market perceives that the Baker Entities intend to sell a large number of our shares, this could adversely affect the market price of our common stock.

We have anti-takeover provisions in our corporate charter documents that may result in outcomes with which you do not agree.

Our board of directors has the authority to issue up to 4,800,0005,000,000 shares of undesignated preferred stock and to determine the rights, preferences, privileges and restrictions of those shares without further vote or action by our stockholders. The rights of the holders of any preferred stock that may be issued in the future may adversely affect the
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rights of the holders of common stock. The issuance of preferred stock could make it more difficult for third parties to acquire a majority of our outstanding voting stock.

In addition, our certificateCertificate of incorporationIncorporation provides for staggered terms for the members of the board of directors and supermajority approval of the removal of any member of the board of directors and prevents our stockholders from acting by written consent or from calling special meetingsconsent. Our Certificate of stockholders. Our certificateIncorporation also requires supermajority approval of any amendment of these provisions. These provisions and other provisions of our by-lawsAmended and Restated Bylaws and of Delaware law applicable to us could delay or make more difficult a merger, tender offer or proxy contest involving us.

We have never paid dividends on our common stock and do not anticipate doing so in the foreseeable future.

We have never paid cash dividends on our stock. We currently intend to retain all future earnings, if any, for use in the operation of our business. Accordingly, we do not anticipate paying cash dividends on our common stock in the foreseeable future.

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Our Amended and Restated Bylaws provide that the Court of Chancery of the State of Delaware will be the sole and exclusive forum for certain litigation that may be initiated by our stockholders, which may limit a stockholders ability to obtain a favorable judicial forum for such disputes with us or our directors, officers or employees.

Our Amended and Restated Bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers, stockholders, employees or agents to us or our stockholders, (iii) any action asserting a claim against us or any of our directors, officers, stockholders, employees or agents arising out of or relating to any provision of the General Corporation Law of Delaware or our Certificate of Incorporation or Amended and Restated Bylaws, or (iv) any action against us or any of our directors, officers, stockholders, employees or agents governed by the internal affairs doctrine of the State of Delaware. This exclusive forum provision does not apply to establish the Delaware Court of Chancery as the forum for actions or proceedings brought to enforce a duty or liability created by the Securities Act or the Exchange Act, or any other claim for which the federal courts have exclusive jurisdiction.
This exclusive forum provision may limit a stockholder’s ability to choose its preferred judicial forum for disputes with us or our directors, officers, employees or agents, which may discourage the filing of lawsuits with respect to such claims. If a court were to find this exclusive forum provision to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in another jurisdiction, which could adversely affect our business and financial condition.
General Risk Factors
Natural disasters, epidemic or pandemic disease outbreaks, trade wars, armed conflicts, political unrest or other events could disrupt our business or operations or those of our development partners, manufacturers, regulators or other third parties with whom we conduct business now or in the future.
A wide variety of events beyond our control, such as natural disasters (including as a result of climate change), epidemic or pandemic disease outbreaks (such as the ongoing COVID-19 pandemic), trade wars, armed conflict, political unrest or other events could disrupt our business or operations or those of our development partners (such as Torii), manufacturers, regulatory authorities, or other third parties with whom we conduct business. These events may cause businesses and government agencies to be shut down, supply chains to be interrupted, slowed, or rendered inoperable, and individuals to become ill, quarantined, or otherwise unable to work and/or travel due to health reasons or governmental restrictions. If our operations or those of third parties with whom we conduct business are impaired or curtailed as a result of these events, the development and commercialization of our products and product candidates could be impaired or halted, which could have a material adverse impact on our business. See, for example, “Risk Factors—General Risk Factors—Our business, operations, clinical development or commercialization plans and timelines, and access to capital could be adversely affected by unpredictable and unstable market and economic conditions.” In addition, other events, such as the armed conflict between Russia and Ukraine, could adversely impact our business. For example, the conflict could lead to sanctions, embargoes, supply shortages, regional instability, geopolitical shifts, cyber-attacks, other retaliatory actions, and adverse effects on macroeconomic conditions, currency exchange rates, and financial markets, which could adversely impact our operations and financial results, as well as those of third parties with whom we conduct business.
Our business, operations, clinical development or commercialization plans and timelines, and access to capital could be adversely affected by unpredictable and unstable market and economic conditions.
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Our business, operations, clinical development or commercialization plans and timelines, and access to capital could be adversely affected by unpredictable and unstable market and economic conditions, including as a result of rising inflation, increased interest rates, disruption or instability in the banking industry, the effects of the ongoing COVID-19 pandemic, foreign exchange rate fluctuations, and the conflict in Ukraine. The magnitude, duration and long-term effect of each of these factors, as well as the effects of actions taken by governments to address them, are unknown at this time, but they could result in further significant disruption of the global economy and financial markets. Our business may be adversely affected by any related economic downturn, volatile geopolitical and business environment, or continued market instability.

Unstable market and economic conditions could materially affect our ability to access the equity or debt capital markets or obtain other sources of capital in the future, which could negatively affect our liquidity. In addition, a recession or market correction could materially affect our business and the value of our common stock.

Market and economic conditions continue to evolve, with the ultimate impacts being uncertain and subject to change. These effects could be material, and we will continue to monitor the economic climate, COVID-19 pandemic, and the conflict in Ukraine closely. We do not yet know the full extent and magnitude of the impacts that these developments will have on our business, on the healthcare system, or on the global economy. In addition, unstable market conditions could have the effect of heightening many of the other risks described in this “Risk Factors” section.
We are subject to legal proceedings, which could harm our reputation or result in other losses or unexpected expenditure of time and resources.
From time to time, we may be involved in disputes, including, without limitation, disputes with our employees, collaborative partners, and third-party vendors. We may be called upon to initiate legal proceedings or to defend ourselves in such legal proceedings relating to our relationships with these parties, our decisions and actions or omissions with respect thereto, and our business. In addition, if our stock price is volatile, we may become involved in securities class action lawsuits in the future. Due to the inherent uncertainties in legal proceedings, we cannot accurately predict the ultimate outcome of any such proceedings. An unfavorable outcome in any such proceedings could have an adverse impact on our business, financial condition and results of operations. Any current or future dispute resolution or legal proceeding, regardless of the merits of any such proceeding, could harm our reputation and result in substantial costs and a diversion of management’s attention and resources that are needed to successfully run our business.
Insurance coverage is increasingly more costly and difficult to obtain or maintain.
While we currently have insurance for our business, property, directors and officers, and our products, insurance is increasingly more costly and narrower in scope, and we may be required to assume more risk in the future. If we are subject to claims or suffer a loss or damage in excess of our insurance coverage, we will be required to bear any loss in excess of our insurance limits. If we are subject to claims or suffer a loss or damage that is outside of our insurance coverage, we may incur significant uninsured costs associated with loss or damage that could have an adverse effect on our operations and financial position. Furthermore, any claims made on our insurance policies may impact our ability to obtain or maintain insurance coverage at reasonable costs or at all.
If we fail to retain our existing key personnel or fail to attract and retain additional key personnel, the development of our product candidates, the commercialization of our products, and the related expansion of our business will be delayed or stopped.
We are highly dependent upon our senior management and scientific team, the unexpected loss of whose services might impede the achievement of our development and commercial objectives. Competition for key personnel with the experience that we require is intense and is expected to continue to increase. Our inability to attract and retain the required number of skilled and experienced management, commercial, operational and scientific personnel would harm our business because we rely upon these personnel for many critical functions of our business.
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Item 6.    Exhibits

INDEX TO EXHIBITS

NumberDescription
3.1
3.1
3.2
3.3Certificate of Increase of Authorized Number of Shares of Series B Junior Participating Preferred Stock. Incorporated by reference to Exhibit 3.1 to the Company’s Form 8-K filed November 4, 2008.
3.4
3.53.4
3.5
3.6
(10.1)3.7
(31.1)
(31.2)
(32.1)
(32.2)
(101)Financial statements from the Quarterly Report on Form 10-Q of BioCryst Pharmaceuticals, Inc. for the three months ended September 30, 2017,March 31, 2023, formatted in Inline XBRL: (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Comprehensive Loss, (iii) Consolidated Statements of Cash Flows, and (iv) Notes to Consolidated Financial Statements.Statements, tagged as blocks of text and including detailed tags.

_______________________

(104)Cover Page Interactive Data File – The cover page from this Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 is formatted in Inline XBRL (contained in Exhibit 101).
( )Filed or furnished herewith.

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SIGNATURES

Pursuant to the requirements 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 on this 8th day of November, 2017.

May, 2023.
BIOCRYST PHARMACEUTICALS, INC.
/s/ Jon P. Stonehouse
Jon P. Stonehouse

President and Chief Executive Officer

(Principal Executive Officer)

/s/ Thomas R. Staab, IIAnthony Doyle
Thomas R. Staab, IIAnthony Doyle
Senior Vice President, Chief Financial Officer and Treasurer
(Principal Financial Officer)
/s/ Michael L. Jones
Michael L. Jones
Executive Director, Finance and Principal Accounting Officer
(Principal Accounting Officer)

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