Summit Therapeutics Inc. 10-K

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations The following discussion and analysis of our financial condition and results of operations is for the year ended December 31, 2024 compared with the year ended December 31, 2023. This comparison should be read in conjunction with our consolidated financial statements and related notes appearing elsewhere in this Annual Report on Form 10-K. This discussion contains forward-looking statements based upon current expectations that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth under “Risk Factors” included in Part I, Item 1A or in other parts of this Annual Report on Form 10-K. For a discussion and analysis of our financial condition and results of operations for the year ended December 31, 2023 compared to December 31, 2022, see Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in the 2023 Annual Report on Form 10-K, filed with the Securities and Exchange Commission on February 20, 2024. The Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A, describes principal factors affecting the results of our operations, financial condition and liquidity, as well as our critical accounting policies and estimates that require significant judgment and thus have the most significant potential impact on our Consolidated Financial Statements. This section provides an analysis of our financial results for the year ended December 31, 2024 compared to the same period in the prior year. Company Overview Summit Therapeutics Inc. ("we", "Summit" or the "Company") is a biopharmaceutical company focused on the discovery, development, and commercialization of patient-, physician-, caregiver- and societal-friendly medicinal therapies intended to improve quality of life, increase potential duration of life, and resolve serious unmet medical needs. The Company's pipeline of product candidates is designed with the goal to become the patient-friendly, new-era standard-of-care medicines, in the therapeutic area of oncology. The Company's current lead development candidate is ivonescimab, a novel, potential first-in-class bispecific antibody intending to combine the effects of immunotherapy via a blockade of PD-1 with the anti-angiogenesis effects of an anti-VEGF compound into a single molecule. On December 5, 2022, the Company entered into a Collaboration and License Agreement (the “License Agreement”) with Akeso, Inc. and its affiliates (collectively, “Akeso”) pursuant to which the Company has in-licensed intellectual property related to ivonescimab. Through the License Agreement, the Company obtained the rights to 65 develop and commercialize ivonescimab in the United States, Canada, Europe, and Japan. The License Agreement and transaction closed in January 2023 following customary waiting periods. On June 3, 2024, the Company entered into an amendment to the License Agreement with Akeso to expand its territories covered under the License Agreement to also include the Latin America, Middle East and Africa regions (collectively, and as expanded, the "Licensed Territory"). The Company’s operations are focused on the development of ivonescimab and other future activities, as the Company determines. The Company has begun its development for ivonescimab in non-small cell lung cancer (“NSCLC”), specifically launching Phase III clinical trials in the following proposed indications: (a) ivonescimab combined with chemotherapy in patients with epidermal growth factor receptor (“EGFR”)-mutated, locally advanced or metastatic non-squamous NSCLC who have progressed after treatment with a third-generation EGFR tyrosine kinase inhibitor (“TKI”) (“HARMONi”); and (b) ivonescimab combined with chemotherapy in first-line metastatic NSCLC patients (“HARMONi-3”) In addition, the Company has begun to activate clinical trial sites in the United States for a Phase III clinical study in the following proposed indication: (c) ivonescimab monotherapy in first-line metastatic NSCLC patients with high PD-L1 expression (“HARMONi-7”). In October 2024, the Company completed enrollment in its HARMONi clinical trial. The Company expects to disclose topline results from HARMONi in mid-2025, depending upon maturation of the data per the protocol. Key Components of our Results of Operations Operating expenses The majority of our operating expenses since inception have consisted of research and development activities and general and administrative costs. Research and Development and Acquired in-process research and development Expenses Research and development expenses consist of all costs associated with our research and development activities. These include: • costs incurred in conducting our preclinical studies and clinical trials through contract research and development organizations, including, but not limited to, preclinical toxicology, pharmacology, formulation and manufacturing work, as well as regulatory, operational, drug supply and treatment costs related to conducting the study; • laboratory and vendor expenses incurred in relation to our preclinical, non-clinical and clinical studies; • costs incurred in supply chain development and scale up activities to support product registration; • employee related expenses, which include salary, benefits and stock-based compensation, for our research and development staff; • costs incurred in development and conduct of training and education related our development candidates; and • facilities, depreciation and other expenses, which include direct and allocated expenses for rent and maintenance of facilities, insurance and other supplies. We utilize our employee and infrastructure resources across multiple research projects. We track expenses related to our clinical programs and certain preclinical programs on a per project basis. We expect our research and development expenses to continue to be significant as we initiate our planned clinical trials of ivonescimab, and continue our activities to initiate preclinical programs for future product candidates. The timing and amount of these expenses will depend upon the outcome of our clinical trials and the associated costs. The timing and amount of these expenses will also depend on the costs associated with potential future clinical trials of our product candidates and the related expansion of our research and development organization, regulatory requirements, advancement of our preclinical programs and product candidate manufacturing costs. General and administrative expenses General and administrative expenses consist primarily of salaries and benefits related to our executive, finance, business development, human resources, legal and other support functions. Other general and administrative expenses include stock- 66 based compensation expenses, market research costs, facility-related costs, consulting costs and expenses associated with the requirements of being a publicly traded company in the United States, including insurance, legal, audit and taxation services fees. We anticipate that our general and administrative expenses will continue to increase in the future as we increase our headcount to support our planned clinical trials of ivonescimab, continued research and development and potential commercialization of our product candidates. We also anticipate continued accounting, audit, regulatory, compliance, insurance and investor and public relations expenses associated with being a publicly traded company in the United States. Other operating (expense) income, net Other operating (expense) income, net consists primarily of research and development ("R&D") tax credits received in the United Kingdom (“U.K.”). We benefit from two U.K. research and development tax credit cash rebate regimes: Small and Medium Enterprise Program (“SME Program”) and the Research and Development Expenditure Credit Program (“RDEC Program”). Under both schemes, we receive cash payments that are not dependent on our pre-tax net income levels. Based on criteria established by His Majesty’s Revenue and Customs (“HMRC”), a portion of expenditures being carried out in relation to our pipeline research and development, clinical trials management and third-party manufacturing development activities are eligible for the SME regime tax credits and amounts recognized from grants and clinical trial support from government entities, philanthropic, non-government and not-for-profit organizations. Other income, net Other expense, net primarily consists of foreign currency net gains and losses and investment income related to investments in money market funds and U.S. treasury securities. All highly liquid investments with a maturity date of 90 days or less at the date of purchase are considered to be cash equivalents and the related investment income is recognized in net loss. The appropriate classification of investments in securities is determined by the Company at the time of purchase. Interest expense Interest expense consists of cash and imputed interest expense incurred related to our promissory notes to related parties. Imputed interest is calculated as the difference between the expected interest payable and the deemed market rate of interest and is recorded as a debt discount at inception of the note payable with a credit to additional paid-in capital for notes payable to related parties. The debt discount is amortized to interest expense using an effective interest rate method. Taxation As a U.S. tax resident trading entity, we are subject to U.S. corporate taxation. Our U.K. resident trading subsidiaries are individually subject to U.K. corporate taxation. Due to the nature of our business, we have generated losses since inception. We have recorded a full valuation allowance against the deferred tax assets with respect to these tax losses in excess of our deferred tax liabilities in each jurisdiction because we do not consider it more likely than not that there will be suitable taxable profits in the foreseeable future based on the evidence available against which to offset these losses. Results of Operations For a discussion and analysis of our financial condition and results of operations for the year ended December 31, 2023 compared to December 31, 2022, please refer to Item 7 of Part II, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2023, which was 67 filed with the SEC on February 20, 2024, and is available on the SEC's website at www.sec.gov and our Investor Relations website at www.smmttx.com/investor-information. Amounts reported in millions within this Annual Report on Form 10-K are computed based on the amounts in thousands, and therefore, the sum of components may not equal the total amount reported in millions due to rounding. Comparison of the Year Ended December 31, 2024 to the Year Ended December 31, 2023 (in millions) Year Ended December 31, 2024 2023 $ Change Operating expenses: Research and development $ 150.8 $ 59.4 $ 91.4 Acquired in-process research and development 15.0 520.9 (505.9) General and administrative 60.5 30.3 30.2 Total operating expenses 226.3 610.6 (384.3) Other operating income, net 0.3 1.0 (0.7) Operating loss (226.0) (609.6) 383.6 Other income, net 13.4 11.2 2.2 Interest expense (8.7) (16.5) 7.8 Net loss $ (221.3) $ (614.9) $ 393.6 Operating Expenses Research and Development and Acquired in-process research and development Expenses The table below summarizes our research and development and acquired in-process research and development expenses by category for the year ended December 31, 2024 and 2023, respectively. (in millions) Year Ended December 31, 2024 2023 $ Change Oncology clinical trial related costs $ 100.9 $ 35.2 $ 65.7 Acquired in-process research and development 15.0 520.9 (505.9) Anti-infectives (1) 0.3 (1.5) 1.8 Compensation related costs, excluding stock-based compensation 33.6 21.3 12.3 Stock-based compensation 16.0 4.4 11.6 Total $ 165.8 $ 580.3 $ (414.5) (1) Anti-infectives includes the Company’s antibiotic pipeline research activities and ridinilazole or CDI program activities (collectively, “Anti-infectives). The entry into the License Agreement with Akeso, Inc., effective in January 2023, represents a significant change in our strategy from anti-infectives to the therapeutic area of oncology. We invested our resources in the clinical development of ivonescimab during the years ended December 31, 2024 and 2023. Oncology clinical trial related costs represent our investment in the clinical development of ivonescimab, known as SMT112 in the Licensed Territory. Research and development expenses (excluding acquired in progress research and development noted below) increased by $91.4 million during the year ended December 31, 2024, compared to the same period in the prior year. This increase was primarily due to our continued investment in oncology clinical trial related costs for ivonescimab, known as SMT112 in the Licensed Territory, resulting in an increase of $65.7 million and an increase in compensation and stock-based compensation related expenses of $23.9 million in the year ended December 31, 2024, to support the clinical development of ivonescimab as we continue to hire additional clinical resources in the oncology field, coupled with acceleration charges related to the achievement of certain market conditions on performance stock option awards. We expect oncology-related research and development costs to continue to increase as we progress with the development of ivonescimab. 68 In June 2024, we entered into a second amendment (the "Second Amendment") to the License Agreement with Akeso to expand the Licensed Territory to include Latin America, Middle East and Africa regions. Considered an extension of the original License Agreement, we agreed to make an upfront payment to Akeso in the amount of $15.0 million for these expanded territories which we paid in the third quarter of 2024. This was recorded in our consolidated statement of operations and comprehensive loss as acquired in process research and development expenses for the year ended December 31, 2024. Our investment in ivonescimab included $520.9 million for the year ended December 31, 2023 related to our upfront milestone payments pursuant to the License Agreement with Akeso. The License Agreement closed in January 2023, and both Akeso and Summit entered into the Common Stock Issuance Agreement (“Issuance Agreement”). Pursuant to the License Agreement and Issuance Agreement, Akeso elected to receive 10 million shares of our common stock in lieu of $25.1 million cash and was paid $274.9 million in cash as the initial upfront payment. The remaining $200.0 million upfront payment was paid on March 6, 2023. Acquired in-process research and development expense comprised of the $474.9 million paid in cash, the fair value of the 10 million shares of common stock on the date of closing the transaction of $45.9 million, and $0.1 million of direct transactions costs incurred. General and Administrative Expenses The table below summarizes our general and administrative expenses by category for the year ended December 31, 2024 and 2023, respectively. (in millions) Year Ended December 31, 2024 2023 $ Change Compensation related costs, excluding stock-based compensation $ 14.7 $ 10.1 $ 4.6 Stock-based compensation 35.0 9.7 25.3 Legal fees and professional services 4.8 6.9 (2.1) Other general and administrative expenses 6.0 3.6 2.4 Total $ 60.5 $ 30.3 $ 30.2 General and administrative expenses increased by $30.2 million for the year ended December 31, 2024, compared to the same period in the prior year, primarily due to an increase of $25.3 million in stock-based compensation related to an increase in equity award grants and the acceleration charges related to the achievement of certain market conditions on performance stock option awards. Additionally, compensation-related costs, excluding stock-based compensation increased by $4.6 million, for the year ended December 31, 2024, compared to the same period in the prior year, as the Company is focused on building its executive management team to continue supporting its growth. We expect general and administrative expenses to continue to increase as we scale our infrastructure and management to support development of ivonescimab. Other Operating (Expense) Income, net The table below summarizes our other operating (expense) income by category for the year ended December 31, 2024 and 2023, respectively: (in millions) Year Ended December 31, 2024 2023 $ Change Research and development tax credits $ 0.3 $ 1.0 $ (0.7) Total $ 0.3 $ 1.0 $ (0.7) U.K. research and development tax credits decreased by $0.7 million for the year ended December 31, 2024, compared to the same period in the prior year, as management updated its estimates for qualifying expenditures relating to ivonescimab, which resulted in a decrease in tax credits claimed. 69 Other Income (Expense), Net The table below summarizes our other income (expense), net by category for the year ended December 31, 2024 and 2023, respectively. (in millions) Year Ended December 31, 2024 2023 $ Change Foreign currency (losses) gains $ (0.1) $ 0.6 $ (0.7) Investment income 13.5 10.5 3.0 Reclassification of cumulative currency translation gain — 0.4 (0.4) Other expense, net — (0.3) 0.3 Total $ 13.4 $ 11.2 $ 2.2 Other income (expense), net increased by $2.2 million for the year ended December 31, 2024, compared to the same period in the prior year, primarily due to an increase of $3.0 million in interest income due to the higher short-term investments balance, partially offset by unfavorable changes in foreign currency losses of $0.7 million. Interest Expense Interest expense on promissory notes payable to related parties decreased to $8.7 million for the year ending December 31, 2024, from $16.5 million during the year ending December 31, 2023, due to full payment of promissory note in October 2024. Liquidity and Capital Resources Sources of Liquidity To date, we have financed our operations primarily through issuances of our common stock, including our most recent private placement issued in September 2024 for gross proceeds of $235.0 million and the raise of $44.2 million gross proceeds from our ATM Agreement during 2024, issuance of debt, and receipt of payments to us under license and collaboration arrangements. We have devoted substantially all of our efforts to research and development, including clinical trials. We have not completed the development of any drugs. We expect to continue to incur significant expenses and increasing operating losses for at least the next few years. The net losses we incur may fluctuate significantly from quarter to quarter and year to year, due to the nature and timing of our research and development activities. We expect that our research and development and general and administrative expenses will continue to be significant in connection with our ongoing research and development efforts. In addition, if we obtain marketing approval for any of our product candidates in the United States or other jurisdictions where we retain commercial rights, and if we choose to retain those rights, we would expect to incur significant sales, marketing, distribution and outsourced manufacturing expenses, as well as ongoing research and development expenses. In addition, our expenses will increase if and as we: • invest in clinical development of ivonescimab in the Licensed Territory; • conduct research and continue development of additional product candidates; • maintain and augment our intellectual property portfolio and opportunistically acquire complimentary intellectual property; • seek further regulatory advancement for ivonescimab; • invest in our manufacturing capabilities for ivonescimab and any other products for which we may obtain regulatory approval; • seek marketing approvals for any product candidates that successfully complete clinical development; • ultimately establish a sales, marketing and distribution infrastructure in jurisdictions where we have retained commercialization rights and scale up external manufacturing capabilities to commercialize any product candidates for which we receive marketing approval; • perform our obligations under our collaboration agreements; • pursue business development opportunities, including investing in other businesses, products and technologies; • experience any delays or encounter any issues with any of the above, including but not limited to failed studies, complex results, safety issues or other regulatory challenges; • hire additional clinical, regulatory, scientific and administrative personnel; 70 • expand our physical presence; • add operational, financial and management information systems and personnel, including personnel to support our product development and planned future commercialization efforts; and • borrow capital to fund our resources and have to pay interest expenses on such borrowings. During the year ended December 31, 2024, we incurred a net loss of $221.3 million, and cash flows used in operating activities was $142.1 million. As of December 31, 2024 we had an accumulated deficit of $1,214.6 million, cash and cash equivalents and short-term investments in U.S. treasury securities of $412.3 million. We expect to continue to generate operating losses for the foreseeable future. We have evaluated whether our cash, cash equivalents and short-term investments provide sufficient cash to fund our operating cash needs for the next 12 months from the date of issuance of these annual financials. We concluded that our cash, cash equivalents and short-term investments as of December 31, 2024 will fund our operating cash needs for at least the next 12 months from the date of issuance of these financial statements. From time to time, we may raise additional equity or debt capital through both registered offerings off of a shelf registration, including “at-the-market” offerings, and private offerings of securities. On February 20, 2024, we filed a shelf registration statement on Form S-3 with the SEC, which the SEC declared effective on February 27, 2024. Through our shelf registration statement we may, from time to time, sell up to an aggregate of $450 million of our common stock, preferred stock, debt securities, depositary shares, warrants, subscription rights, purchase contracts, or units. Of the $450 million of liquidity available to us under this shelf registration statement, on May 13, 2024, we had established an at-the-market offering program with J.P. Morgan Securities LLC, as sales agent, in the amount of up to $90 million, of which $45.8 million remains available for sale as of December 31, 2024. If we require or elect to seek additional capital through debt or equity financing in the future, we may not be able to raise capital on terms acceptable to us or at all. To the extent we raise additional capital through the sale of equity or convertible debt securities, the issuance of such securities will result in dilution to our stockholders. If we are required and unable to raise additional capital when desired, our business, operating results and financial condition may be adversely affected. As of the date of this report, additional capital has not been secured. In addition to the payments already made to Akeso, under the License Agreement and Second Amendment, there are additional potential milestone payments of $4.56 billion, as Akeso will be eligible to receive regulatory milestones of up to $1.05 billion and commercial milestones of up to $3.51 billion. In addition, Akeso will be eligible to receive low double-digit royalties on net sales. Until we can generate substantial revenue and achieve profitability, we will need to raise additional capital to fund ongoing operations and capital needs, including the payment of the milestone payments referenced above. We have based the foregoing estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. This estimate assumes, among other things, that we do not obtain any additional funding through grants and clinical trial support or through new collaboration arrangements. Our future capital requirements will depend on many factors, including: • the costs, timing and outcome of clinical trials required for clinical development of ivonescimab; • the number and development requirements of other future product candidates that we pursue; • the costs, timing and outcome of regulatory review of ivonescimab and/or our other product candidates we develop; • the costs and timing of commercialization activities, including product sales, marketing, distribution and manufacturing, for any of our product candidates that receive marketing approval; • the extent to which we become liable for milestone payments under the License Agreement and Second Amendment for ivonescimab; • subject to receipt of marketing approval, revenue received from commercial sales of any product candidates; • the costs and timing of preparing, filing and prosecuting patent applications, maintaining and protecting our intellectual property rights and defending against any intellectual property-related claims; • our ability to establish and maintain collaborations, licensing or other arrangements and the financial terms of such arrangements; • the extent to which we acquire or invest in other businesses, products and technologies; • the rate of the expansion of our physical presence; and • the extent to which we change our physical presence. Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of some, or all, of the following: equity and debt offerings, collaborations, strategic alliances, grants and clinical trial support from government entities, philanthropic, non-government and not-for-profit organizations, and marketing, distribution or licensing arrangements. 71 We will need to seek additional funding in the future to fund operations. Additional capital, when needed, may not be available to us on acceptable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our existing stockholders may be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our existing stockholders. Additional debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends or other distributions. If we raise additional funds through collaborations, strategic alliances or marketing, distribution, or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or to grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings or other arrangements when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves, which could materially adversely affect our business prospects or our ability to continue operations. Cash Flows The following table summarizes the results of our cash flows for the years ended December 31, 2024 and 2023. (in millions) Year Ended December 31, 2024 2023 Net cash used in operating activities $ (142.1) $ (76.8) Net cash used in investing activities $ (205.3) $ (587.8) Net cash provided by financing activities $ 381.2 $ 86.5 Operating Activities Net cash used in operating activities for the year ended December 31, 2024 was $142.1 million and primarily resulted from a net loss of $221.3 million, which included an adjustment of $15.0 million in cash payments related to investing activities for the purchase of in-process research and development from Akeso under the terms of the License Agreement and the associated direct transaction costs, non-cash charges of $48.7 million and a net increase in working capital of $15.5 million. Non-cash charges primarily include $51.0 million of stock-based compensation, partially offset by $2.6 million related to the amortization of discount on short-term investments. The net increase in working capital is primarily due to an $11.9 million increase in accrued liabilities and other current liabilities, a $6.6 million increase in accrued compensation, a $2.5 million decrease in other assets, and a $2.0 million increase in accounts payable, partially offset by a $7.9 million increase in prepaid expenses and other current assets. Net cash used in operating activities for the year ended December 31, 2023 was $76.8 million and resulted from a net loss of $614.9 million, which included an adjustment of $475.0 million in cash payments related to investing activities for the purchase of in-process research and development from Akeso under the terms of the License Agreement and the associated direct transaction costs and non-cash charges of $63.6 million and a net decrease in working capital of $0.5 million. Non-cash charges primarily include a $45.9 million expense for the issuance of shares in lieu of cash for the Akeso upfront payment, $14.1 million of stock-based compensation, $6.3 million related to non-cash interest expense, and a $0.5 million impairment charge, partially offset by $1.9 million related to amortization of discount on short-term investments and $0.8 million in a net unrealized foreign exchange gain. The net increase in working capital is primarily due to a $3.7 million increase in other long-term assets, a $2.4 million decrease in accrued liabilities, and a $0.4 million decrease in lease liabilities, partially offset by a $4.2 million decrease in the research and development tax credit receivable and a $2.3 million increase in accounts payable. Investing Activities Net cash used in investing activities for the years ended December 31, 2024 was $205.3 million and was primarily due to $190.2 million of net purchases of short-term investments and $15.0 million of cash payments made to Akeso pursuant to the License Agreement. Net cash used in investing activities for the years ended December 31, 2023 was $587.8 million and was primarily due to $475.0 million of cash payments made to Akeso pursuant to the License Agreement and $112.9 million of net purchases of short-term investments. 72 Financing Activities Net cash provided by financing activities for the year ended December 31, 2024 was $381.2 million and was primarily due to $434.9 million of proceeds from various private placements, $43.0 million net proceeds from our current ATM Agreement, and proceeds received of $2.7 million related to employee stock awards, partially offset by a $100.0 million early principal payment on promissory notes payable to a related party. Net cash provided by financing activities for the year ended December 31, 2023 was $86.5 million and was primarily due to net proceeds received of $104.1 million (net of paid issuance costs) related to the issuance of common stock from the 2023 Rights Offering and net of the extinguishment of $395.3 million of principal and accrued interest due and payable by us under the $400 million Duggan Promissory Note in satisfaction of the subscription price for the shares subscribed by Mr. Duggan in the 2023 Rights Offering, $5.0 million received for the issuance of common stock via a private placement to a related party, and $1.2 million received for the exercise of stock option warrants, partially offset by the repayment of $24.7 million related to promissory notes from related parties. Contractual Obligations and Commitments Fixed asset purchase commitments At December 31, 2024 and 2023, we had no capital commitments. Lease commitments The following table summarizes our lease contractual obligations as of December 31, 2024: Payment due by period (in millions) Total Less than 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Operating lease obligations $ 8.0 $ 3.8 $ 2.8 $ 1.4 $ — Debt commitments On December 6, 2022, we entered into a Note Purchase Agreement (the “Note Purchase Agreement”), with Mr. Duggan and Dr. Zanganeh, pursuant to which we agreed to sell to each of Mr. Duggan and Dr. Zanganeh unsecured promissory notes in the aggregate amount of $520 million. Pursuant to the Note Purchase Agreement, we issued to Mr. Duggan and Dr. Zanganeh unsecured promissory notes in the amount of $400 million (the “Duggan February Note”) and $20 million (the “Zanganeh Note”), respectively, which matured and became due on February 15, 2023 and an unsecured promissory note to Mr. Duggan in the amount of $100 million (the “Duggan September Note” and together with the Duggan February Note and the Zanganeh Note, the “December 2022 Notes”), which was originally due on September 15, 2023. The maturity dates of the December 2022 Notes could have been extended one or more times at our election, but in no event to a date later than September 6, 2024. In addition, if we consummated a public offering, then upon the later to occur of (i) five business days after we receive the net cash proceeds therefrom or (ii) May 15, 2023, the Duggan February Note and the Zanganeh Note were to be prepaid by an amount equal to the lesser of (a) 100% of the amount of the net proceeds of such offering and (b) the outstanding principal amount on such Notes. On January 19, 2023, we provided notice to extend the term of the Duggan February Note and Duggan September Note to a maturity date of September 6, 2024. Furthermore, on January 19, 2023, we and Mr. Duggan rectified the Duggan February Note and Duggan September Note in order to correctly reflect the parties’ intent that we may only prepay (i) the Duggan February Note following the completion of a public rights offering to be conducted by us in the approximate amount of $500 million, or a similar capital raise, in an amount equal to the lesser of (x) the net proceeds of the Rights Offering or such capital raise or (y) the full amount outstanding of the Duggan February Note, and (ii) the Duggan September Note following the completion of a capital raising transaction subsequent to the 2023 Rights Offering (as defined in Note 17 Stockholders’ Equity to the consolidated financial statements included under Item 15 Exhibits, Financial Statement Schedules) in an amount equal to the lesser of (A) the net proceeds of such capital raise or (B) the full amount outstanding of the Duggan September Note. Following the issuance of the two new Promissory Notes (the “Duggan Promissory Notes”), the Duggan February Note and Duggan September Note were marked as “cancelled” on their face and replaced in their entirety by the Duggan Promissory Notes (together with the Zanganeh Note, the “Notes”). The Notes accrued interest at an initial rate of 7.5%. All interest on the Notes was paid on the date of signing for the 73 period through February 15, 2023. Such prepaid interest was paid in a number of shares of our common stock, par value $0.01 (“Common Stock”) equal to the dollar amount of such prepaid interest, divided by $0.7913 (the consolidated closing bid price immediately preceding the time we entered into the Note Purchase Agreement, plus $.01), which was 9,720,291 shares. For all applicable periods following February 15, 2023, interest accrued on the outstanding principal balance of the Notes at the US prime interest rate, as reported in the Wall Street Journal, plus 50 basis points, as adjusted monthly, for three months immediately following February 15, 2023, and thereafter at the US prime rate plus 300 basis points, as adjusted monthly. Accrued interest was paid in cash, quarterly in arrears, on each of March 31, June 30, September 30 and December 31. On February 15, 2023, the $20 million Zanganeh Note matured and we repaid the outstanding principal balance. In connection with the closing of the Rights Offering, the $400 million Duggan Promissory Note matured and became due, and we satisfied all principal and accrued interest thereunder using a combination of a portion of the cash proceeds from the 2023 Rights Offering and the extinguishment of a portion of the amount due equal to the subscription price of shares subscribed by Mr. Duggan in the 2023 Rights Offering. On February 17, 2024 the Duggan February Note was amended to extend the maturity date from September 6, 2024 to April 1, 2025. For all applicable periods commencing February 17, 2024, interest accrued on the outstanding principal balance at the greater of 12% or the US prime interest rate, as reported in the Wall Street Journal plus 350 basis points, as adjusted monthly, compounded quarterly. Interest was paid upon maturity of the loan. As of October 1, 2024, the Company repaid the Duggan September Note in full, resulting in principal payments in the aggregate amount of $100.0 million and accrued cash interest of $7.3 million. Other commitments We enter into contracts in the normal course of business with various third parties for clinical trials, preclinical research studies and testing, manufacturing and other services and products for operating purposes. Most contracts provide for termination upon notice, and therefore are cancellable contracts. As of December 31, 2024, total unconditional purchase obligations, excluding lease commitments, are estimated to be approximately $13.9 million. We have certain commitments under our agreements with Akeso. The License Agreement with Akeso also contains certain manufacturing and purchase commitments. As of December 31, 2024, we are unable to estimate the amount, timing or likelihood of achieving the milestones, making future product sales or assessing estimated forecasts for manufacturing and supplied materials which these contingent payment obligations relate to. For additional information about the License Agreement with Akeso, refer to Note 5, “Akeso License and Collaboration Agreement” to the Consolidated Financial Statements included under Item 15, “Exhibits, Financial Statement Schedules.” Indemnifications Our certificate of incorporation provides that it will indemnify the directors and officers to the fullest extent permitted by Delaware law. In addition, we have entered into indemnification agreements with all of the directors and executive officers. These indemnification agreements may require us, among other things, to indemnify each such director or executive officer for some expenses, including attorneys’ fees, judgments, fines, and settlement amounts incurred by him or her in any action or proceeding arising out of his or her service as one of our directors or executive officers. We believe the fair value for these indemnification obligations is minimal. Accordingly, we have not recognized any liabilities relating to these obligations as of December 31, 2024. Legal Proceedings From time to time, we may become involved in legal proceedings arising in the ordinary course of our business. We are not currently subject to any material legal proceedings. Critical Accounting Policies and Significant Judgments and Estimates Our management’s discussion and analysis of our financial condition and results of operations are based on our consolidated financial statements, which have been prepared in accordance with United States generally accepted accounting principles. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, and expenses and the disclosure of contingent assets and liabilities in our financial statements. On an ongoing basis, we evaluate our estimates and judgments, including those related to accrued research and development expenses, stock-based compensation and income taxes. We base our estimates on historical experience, known trends and events, and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments 74 about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. We believe the following critical accounting policies affect the most significant judgments, assumptions and estimates we use in preparing the consolidated financial statements: Acquired In-Process Research and Development The Company may enter into agreements with collaboration partners for the development and commercialization of its products. These arrangements may include payments contingent on the occurrence of certain events such as development, regulatory or sales-based milestones. The Company considers the unique nature, terms and facts and circumstances of each transaction. The Company considers whether or not the assets acquired have a future alternative use. The fair value associated with acquired in-process research and development which does not have an alternative future use is expensed and is recorded as research and development expense. Any development or commercial milestone payments are recognized when the achievement of the associated milestone becomes probable and will either be expensed or capitalized depending upon whether or not regulatory approval has been obtained. Research and Development Costs Research and development costs are expensed as incurred. Research and development expenses consist of costs incurred to discover, research and develop product candidates, including personnel expenses, stock-based compensation expense, allocated facility-related and depreciation expenses, third-party license fees and external costs of outside vendors engaged to conduct preclinical and clinical development activities and clinical trials as well as to manufacture clinical trial materials. Non- refundable prepayments for goods or services that will be used or rendered for future research and development activities are recorded as prepaid expenses. Such amounts are recognized as an expense as the goods are delivered or the related services are performed, or until it is no longer expected that the goods will be delivered, or the services rendered. The significant estimates in our accrued research and development expenses include the costs incurred for services performed by our vendors in connection with research and development activities for which we have not yet been invoiced. Milestone and other payments made to third-parties with respect to in-process research and development, in accordance with the Company’s license, acquisition and other similar agreements are expensed when determined to be probable and estimable. The Company has entered into various research and development contracts with other companies. These agreements are generally cancellable, and related payments are recorded as research and development expenses as incurred. The Company records accruals for estimated ongoing research and development costs or prepaid expenses where the payments made exceed the estimated costs. These amounts are determined based on the estimated costs to complete each study or activity, the estimation of the current stage of completion and the invoices received, as well as predetermined milestones which are not reflective of the current stage of development for prepaid expenses. Actual results could differ from the Company’s estimates. In all cases, the full cost of each study or activity is expensed by the time the final report or where applicable, product, has been received. The Company’s historical estimates have not been materially different from the actual costs. Stock-Based Compensation The Company measures and recognizes compensation expense for all stock option and restricted stock unit awards based on the estimated fair value of the award on the grant date. The Company uses the Black-Scholes option pricing model to estimate the fair value of stock option awards. Additionally, the Company uses a Monte Carlo simulation model to calculate the estimated fair value on the date of grant related to awards with market-based service conditions. The fair value is recognized as expense, over the requisite service period, which is generally the vesting period of the respective award, on a straight-line basis for each separately vesting portion of the award when the only condition to vesting is continued service. If vesting is subject to a market or performance condition, recognition is based on the derived service period of the award. Expense for awards with performance conditions is estimated and adjusted on a quarterly basis based upon the assessment of the probability that the performance condition will be met. Use of the Black-Scholes option-pricing model requires management to apply judgment under subjective assumptions. These assumptions include: • Expected term—The expected term of stock options represents the weighted-average period the stock options are expected to be outstanding. The Company uses the simplified method for estimating the expected term as provided by the Securities and Exchange Commission. The simplified method calculates the expected term as the average of the time-to-vesting and the contractual life of the options. 75 • Expected volatility—The expected volatility is calculated based on historical volatility of the Company’s share price. • Risk-free interest rate—The risk-free rate assumption is based on the U.S. Treasury instruments, the terms of which were consistent with the expected term of the Company’s stock options. • Expected dividend—The expected dividend assumption is based on the Company’s history and expectation of dividend payouts. The Company has not paid and does not intend to pay dividends. The Company uses a Monte Carlo simulation model to estimate the fair value of Performance and Market-based Stock Options at the date of grant. Key assumptions used in the model include the risk-free interest rate, which reflects the US Treasury Constant Maturity Yield with a term commensurate with the contractual term of the award, and stock price volatility, which is derived based on the historical volatility of the Company’s stock. The Company estimates expected forfeitures at the time of grant instead of accounting for forfeitures as they occur. Stock option awards have been granted at fair value to non-employees, in connection with research and consulting services provided to the Company, to non-employees in connection with corporate activities, and to employees, in connection with Stock Purchase and Restriction Agreements. Equity awards generally vest over terms of 3 or 4 years. The Company classifies stock-based compensation expense in the consolidated statements of operations and comprehensive loss in the same manner in which the award recipient’s payroll costs are classified. Income Taxes The provision for income taxes is determined using the asset and liability approach. Tax laws may require items to be included in tax filings at different times than the items are reflected in the financial statements. A current asset or liability is recognized for the estimated taxes receivable or payable for the current year. Deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid. Deferred taxes are initially recognized at enacted tax rates in force at the time of initial recognition and are subsequently adjusted for any enacted changes in tax rates and tax laws. Subsequent changes to deferred taxes originally recognized in equity are recognized in income. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. The Company has recorded a full valuation allowance against the deferred tax assets in excess of its deferred tax liabilities, as the deferred tax liability represents future reversals of existing taxable temporary differences. The Company records interest and penalties related to income tax matters as part of income tax expense. The Company accounts for uncertainty in income taxes by applying a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination by the taxing authorities. If the tax position is deemed more-likely-than-not to be sustained, the tax position is then assessed as the amount of benefit to recognize in the consolidated financial statements. The amount of benefits that may be used is the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. The provision for income taxes includes the effects of any resulting tax reserves, or unrecognized tax benefits, that are considered appropriate, as well as the related net interest and penalties. At December 31, 2024 and 2023, the Company had unrecognized tax positions of $2.1 million and $1.1 million, respectively. Due to the Company’s full valuation allowance, the unrecognized tax benefits would not materially impact the Company’s effective tax rate when recognized. The Company does not anticipate the total amount of unrecognized tax benefits to significantly increase or decrease in the next 12 months. The Company’s policy is to recognize interest and penalties related to uncertain tax positions as part of its income tax provision. Recent Accounting Pronouncements For a discussion of recent accounting pronouncements, please see Note 4 to our consolidated financial statements contained in this Annual Report on Form 10-K. 76