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    SEC Form 10-Q filed by SpringWorks Therapeutics Inc.

    5/9/25 4:17:26 PM ET
    $SWTX
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care
    Get the next $SWTX alert in real time by email
    swtx-20250331
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    Table of Contents
    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    WASHINGTON, D.C. 20549
    ____________________________________________________
    FORM 10-Q
    ____________________________________________________
    xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025
    OR
    ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    FOR THE TRANSITION PERIOD FROM _ TO _
    COMMISSION FILE NUMBER 001-39044
    __________________________________
    SPRINGWORKS THERAPEUTICS, INC.
    (Exact name of registrant as specified in its charter)
    __________________________________
    Delaware83-4066827
    (State or other jurisdiction of
    incorporation or organization)
    (I.R.S. Employer
    Identification No.)
    100 Washington Blvd
    Stamford, Connecticut
    06902
    (Address of principal executive offices)(Zip Code)
    (203) 883-9490
    (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 Stock, par value $0.0001 per shareSWTXThe Nasdaq 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 ¨
    Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files). Yes x No ¨
    Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-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 filerxAccelerated filer
    ¨
    Non-accelerated filer
    ¨
    Smaller reporting company
    ¨
    Emerging growth company
    ¨
    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
    Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x
    The number of outstanding shares of the Registrant’s Common Stock as of May 2, 2025 was 75,322,696.


    Table of Contents
    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    This Quarterly Report on Form 10-Q, or Quarterly Report, contains forward-looking statements that involve risks and uncertainties. We make such forward-looking statements pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. All statements other than statements of historical facts contained in this Quarterly Report are forward-looking statements. In some cases, these forward-looking statements can be identified by the use of words such as “may”, “will”, “should”, “expects”, “intends”, “plans”, “anticipates”, “believes”, “estimates”, “predicts”, “potential”, “continue” or the negative of these terms or other comparable terminology. These forward-looking statements include, but are not limited to, statements about:
    •our proposed acquisition by Merck KGaA, Darmstadt, Germany including our expectations regarding the anticipated occurrence, manner, timing and completion thereof and its effects on our relationships with employees, customers, suppliers, other business partners or governmental entities;
    •our ability to continue commercializing OGSIVEO® (nirogacestat), including our ability to successfully maintain commercial manufacturing and supply chains for OGSIVEO, and our expectations regarding the size and growth potential of the commercial markets for OGSIVEO;
    •our ability to continue commercializing GOMEKLITM (mirdametinib), including our ability to successfully establish and maintain commercial manufacturing and supply chains for GOMEKLI, and our expectations regarding the size and growth potential of the commercial markets for GOMEKLI;
    •the timing and outcome of our regulatory submissions and interactions, including the decision on the Marketing Authorization Application, or MAA, for nirogacestat for patients with desmoid tumors that we received validation for in February 2024 by the European Medicines Agency, or EMA, the Committee for Medicinal Products for Human Use’s opinion on such MAA and the decision on the MAA filing for mirdametinib for patients with neurofibromatosis type 1-associated plexiform neurofibromas, or NF1-PN that we received validation for in August 2024 by the EMA, as well as our interactions with other regulatory authorities, investigational review boards at clinical trial sites and publication review bodies;
    •the success, cost and timing of our product development activities and clinical trials, the initiation and completion of any other clinical trials and related preparatory work, the expected timing of the availability of results of our clinical trials;
    •the fact that topline or interim data from our clinical studies may not be predictive of the final or more detailed results of such study or the results of other ongoing or future studies;
    •our ability and our partners’ ability to enroll and successfully complete clinical trials of our product candidates for additional uses, and in combination with other agents;
    •the potential attributes and benefits of our product candidates;
    •our plans to commercialize any of our product candidates that achieve approval either alone or in partnership with others;
    •the period over which we anticipate our existing cash, cash equivalents and marketable securities, will be sufficient to fund our operating expenses and capital expenditure requirements;
    •the potential for our business development efforts to maximize the potential value of our portfolio;
    •our ability to identify, in-license or acquire additional product candidates;
    •the ability and willingness of our third-party collaborators to continue research and development activities relating to our product candidates, including those that are being developed as combination therapies;
    •our ability to obtain and maintain regulatory approval for our product candidates, and any related restrictions, limitations or warnings in the label of an approved product;
    2

    Table of Contents
    •the potential benefit of orphan drug exclusivity, Orphan Drug designation, Fast Track designation, Breakthrough Therapy designation, and Rare Pediatric Disease designation for nirogacestat, mirdametinib and any other of our product candidates that may receive one or more of these designations;
    •our ability to compete with companies currently marketing or engaged in the development of treatments for desmoid tumors, NF1-PN and other oncology and rare disease indications;
    •our expectations regarding our ability to obtain and maintain intellectual property protection or market exclusivity for our product candidates and the duration of such protection;
    •our ability and the potential to successfully manufacture our product candidates for preclinical studies, clinical trials and, if approved, for commercial use, the capacity of our current contract manufacturing organizations, or CMOs, to support clinical supply and commercial-scale production for product candidates and approved products, and our potential election to pursue additional CMOs for manufacturing supplies of drug substance and finished drug product in the future;
    •the size and growth potential of the markets for our product candidates, and our ability to serve those markets, either alone or in partnership with others;
    •the rate and degree of market acceptance of our product candidates, if approved;
    •regulatory developments in the United States and foreign countries;
    •our ability to contract with third-party suppliers and manufacturers and their ability to perform adequately;
    •the success of competing products that are, or may become, available;
    •risks associated with global political changes and global economic conditions, including changes in tariff policy being implemented by the current U.S. presidential administration, inflation or uncertainty caused by political violence and unrest, including ongoing global and regional conflicts;
    •our ability to attract and retain key scientific, medical, commercial and management personnel;
    •our estimates regarding expenses, future revenue, future profitability, capital requirements and need for additional financing;
    •our financial performance; and
    •developments and projections relating to our competitors or our industry.
    Any forward-looking statements in this Quarterly Report reflect our current views with respect to future events and future financial performance, and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements 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 described under Part II, Item 1A, Risk Factors and elsewhere in this Quarterly Report. Given these uncertainties, you should not place undue reliance on these forward-looking statements. 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.
    We may from time to time provide estimates, projections and other information concerning our industry, the general business environment, and the markets for certain diseases, including estimates regarding the potential size of those markets and the estimated incidence and prevalence of certain medical conditions. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties, and actual events, circumstances or numbers, including actual disease prevalence rates and market size, may differ materially from the information provided. Unless otherwise expressly stated, we obtained this industry information, business information, market data, prevalence information and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry, medical and general publications, government data, and similar sources, in each case, from sources we consider to be reliable, and in some cases applying our own assumptions and analysis that may, in the future, prove not to have been accurate.
    3

    Table of Contents
    SPRINGWORKS THERAPEUTICS, INC.
    FORM 10-Q
    FOR THE QUARTER ENDED March 31, 2025
    INDEX
    Page
    PART I – FINANCIAL INFORMATION
    Item 1. Financial Statements (Unaudited)
    5
    Condensed Consolidated Balance Sheets
    5
    Condensed Consolidated Statements of Operations
    6
    Condensed Consolidated Statements of Comprehensive Loss
    7
    Condensed Consolidated Statements of Stockholders’ Equity
    8
    Condensed Consolidated Statements of Cash Flows
    9
    Notes to Condensed Consolidated Financial Statements
    10
    Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
    17
    Item 3. Quantitative and Qualitative Disclosure About Market Risk
    25
    Item 4. Controls and Procedures
    26
    PART II. OTHER INFORMATION
    Item 1. Legal Proceedings
    27
    Item 1A. Risk Factors
    27
    Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
    29
    Item 3. Defaults Upon Senior Securities
    29
    Item 4. Mine Safety Disclosures
    29
    Item 5. Other Information
    29
    Item 6. Exhibits
    29
    SIGNATURES
    31
    4

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    PART I - FINANCIAL INFORMATION
    Item 1. Financial Statements
    SpringWorks Therapeutics, Inc.
    Condensed Consolidated Balance Sheets (Unaudited)
    March 31,
    2025
    December 31,
    2024
    (in thousands, except share and per-share data)
    Assets
    Current assets:
    Cash and cash equivalents$63,774 $69,751 
    Marketable securities224,099 238,234 
    Accounts receivable, net40,347 46,238 
    Inventory12,417 10,212 
    Prepaid expenses and other current assets15,683 16,030 
    Total current assets356,320 380,465 
    Long-term marketable securities94,783 153,933 
    Property and equipment, net19,250 19,680 
    Operating lease right-of-use assets6,578 6,979 
    Equity method investment— 4,190 
    Restricted cash626 624 
    Other assets27,799 21,405 
    Total assets$505,356 $587,276 
    Liabilities and Stockholders’ equity
    Current liabilities:
    Accounts payable$14,929 $12,248 
    Accrued expenses65,639 86,012 
    Operating lease liabilities, current1,700 1,730 
    Total current liabilities82,268 99,990 
    Operating lease liabilities, long-term5,693 6,182 
    Total liabilities87,961 106,172 
    Commitments and contingencies
    Stockholders’ equity:
    Preferred stock, $0.0001 par value, 10,000,000 shares authorized, no shares issued or outstanding at March 31, 2025 and December 31, 2024.
    — — 
    Common stock, $0.0001 par value, 150,000,000 shares authorized, 75,640,711 and 74,747,484 shares issued, and 74,986,085 and 74,403,278 shares outstanding at March 31, 2025 and December 31, 2024, respectively.
    8 7 
    Additional paid-in capital1,678,745 1,646,537 
    Accumulated deficit(1,236,352)(1,153,165)
    Treasury stock, at cost (654,626 and 344,206 shares of common stock at March 31, 2025 and December 31, 2024, respectively).
    (25,448)(12,579)
    Accumulated other comprehensive (loss) income442 304 
    Total stockholders’ equity417,395 481,104 
    Total liabilities and stockholders’ equity$505,356 $587,276 
    See accompanying unaudited notes to condensed consolidated financial statements
    5

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    SpringWorks Therapeutics, Inc.
    Condensed Consolidated Statements of Operations (Unaudited)

    Three Months Ended March 31,
    (in thousands, except share and per-share data)20252024
    Revenue:
    Product revenue, net$49,087 $21,006 
    Total revenue49,087 21,006 
    Operating costs and expenses:
    Cost of product revenue3,527 1,202 
    Selling, general and administrative76,501 60,113 
    Research and development49,595 53,622 
    Total operating costs and expenses129,623 114,937 
    Loss from operations(80,536)(93,931)
    Interest and other (expense) income:
    Interest and other (expense) income, net(998)7,571 
    Total interest and other (expense) income(998)7,571 
    Equity method investment loss(1,653)(1,025)
    Net loss$(83,187)$(87,385)
    Net loss per share, basic and diluted$(1.11)$(1.18)
    Weighted average common shares outstanding, basic and diluted74,885,348 73,768,603 
    See accompanying unaudited notes to condensed consolidated financial statements

    6

    Table of Contents
    SpringWorks Therapeutics, Inc.
    Condensed Consolidated Statements of Comprehensive Loss (Unaudited)

    Three Months Ended March 31,
    (in thousands)20252024
    Net loss$(83,187)$(87,385)
    Changes in other comprehensive income (loss):
    Unrealized gain (loss) on marketable securities, net138 (1,304)
    Total changes in other comprehensive income (loss)$138 $(1,304)
    Comprehensive loss$(83,049)$(88,689)
    See accompanying unaudited notes to condensed consolidated financial statements
    7

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    SpringWorks Therapeutics, Inc.
    Condensed Consolidated Statements of Stockholders’ Equity
    (Unaudited)

    Three Months Ended March 31, 2025 and March 31, 2024
    CommonTreasuryAdditional
    Paid-In
    Capital
    Accumulated
    Other Comprehensive
    Income (Loss)
    Accumulated
    Deficit
    Total
    (in thousands, except share data)SharesAmountSharesAmount
    Balance at December 31, 202373,620,361 $7 133,662 $(4,141)$1,524,196 $1,191 $(895,034)$626,219 
    Equity-based compensation expense30,462 30,462 
    Forfeitures of restricted stock awards(2,623)— — 
    Restricted stock units vested410,752 — — 
    Exercise of stock options326,997 — 5,945 5,945 
    Shares of common stock used to satisfy tax withholding obligations160,629 (6,497)(6,497)
    Other comprehensive income, net of tax(1,304)(1,304)
    Net Loss(87,385)(87,385)
    Balance at March 31, 202474,355,487 $7 294,291 $(10,638)$1,560,603 $(113)$(982,419)$567,440 
    Balance at December 31, 202474,747,484 $7 344,206 $(12,579)$1,646,537 $304 $(1,153,165)$481,104 
    Equity-based compensation expense29,948 29,948 
    Restricted stock units vested803,255 1 1 
    Exercise of stock options89,972 — 2,260 2,260 
    Shares of common stock used to satisfy tax withholding obligations310,420 (12,869)(12,869)
    Other comprehensive income, net of tax138 138 
    Net Loss(83,187)(83,187)
    Balance at March 31, 202575,640,711 $8 654,626 $(25,448)$1,678,745 $442 $(1,236,352)$417,395 

    See accompanying unaudited notes to condensed consolidated financial statements

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    SpringWorks Therapeutics, Inc.
    Condensed Consolidated Statements of Cash Flows
    (Unaudited)
    Three Months Ended March 31,
    (in thousands)20252024
    Operating activities
    Net loss$(83,187)$(87,385)
    Adjustments to reconcile net loss to net cash used in operating activities:
    Depreciation and amortization expense1,101 729 
    Non-cash operating lease expense525 400 
    Equity-based compensation expense29,948 30,462 
    Equity method investment loss and impairment6,595 1,025 
    Changes in operating assets and liabilities
    Accounts receivable, net5,891 (9,599)
    Inventory(2,205)(2,113)
    Prepaid expenses and other current assets347 (1,793)
    Other assets(656)(78)
    Accounts payable2,861 (385)
    Accrued expenses(29,336)(9,625)
    Lease liability(643)(568)
    Net cash used in operating activities$(68,759)$(78,930)
    Investing activities
    Capital expenditures(30)(577)
    Equity method investment— (8,235)
    Purchases of marketable securities— (73,642)
    Proceeds from sale and maturity of marketable securities73,423 103,917 
    Net cash provided by investing activities$73,393 $21,463 
    Financing activities
    Treasury stock(12,869)(6,497)
    Proceeds from stock option exercises2,260 5,945 
    Net cash used in financing activities$(10,609)$(552)
    Net (decrease) increase in cash and cash equivalents(5,975)(58,019)
    Cash and cash equivalents including Restricted cash, beginning of period70,375 176,666 
    Cash and cash equivalents including Restricted cash, end of period$64,400 $118,647 
    Supplemental non-cash disclosure
    Milestone payment for first commercial sale of GOMEKLI included in accrued expenses as of March 31, 2025$6,000 $— 
    See accompanying unaudited notes to condensed consolidated financial statements
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    SpringWorks Therapeutics, Inc.
    Notes to Condensed Consolidated Financial Statements (Unaudited)
    1. Nature of Operations
    SpringWorks Therapeutics, Inc., together with its wholly-owned subsidiaries, collectively, the Company, is a commercial-stage biopharmaceutical company applying a precision medicine approach to developing and commercializing life-changing medicines for underserved patient populations suffering from devastating rare diseases and cancer. The Company has a differentiated portfolio of small molecule targeted oncology assets, including two approved products and several clinical and preclinical candidates at various stages of development, and is advancing programs in rare tumor types as well as highly prevalent, genetically defined cancers. The Company currently commercializes its two approved products, OGSIVEO® (nirogacestat) and GOMEKLITM (mirdametinib), in the United States. OGSIVEO was approved by the United States Food and Drug Administration, or FDA, on November 27, 2023 for the treatment of adult patients with progressing desmoid tumors who require systemic treatment. GOMEKLI was approved by the FDA on February 11, 2025 for the treatment of adult and pediatric patients two years of age and older with neurofibromatosis type 1, or NF1, who have symptomatic plexiform neurofibromas, or PN, not amenable to complete resection.
    The Company has incurred losses and negative operating cash flows since inception and had an accumulated deficit of $1.2 billion and $1.2 billion, and working capital of $274.1 million and $280.5 million, as of March 31, 2025 and December 31, 2024, respectively. In December 2023, we began to generate revenue from sales of OGSIVEO in the United States and in February 2025, we began to generate revenue from sales of GOMEKLI in the United States. For the three months ended March 31, 2025, the Company recorded net product revenue of $49.1 million from the sales of OGSIVEO and GOMEKLI.
    The Company had cash, cash equivalents and marketable securities of $382.7 million and $461.9 million as of March 31, 2025 and December 31, 2024, respectively. Based on the Company’s cash, cash equivalents and marketable securities as of March 31, 2025, management estimates that its current liquidity will enable it to meet operating expenses through at least twelve months after the date that these financial statements are issued.
    Agreement and Plan of Merger
    On April 27, 2025, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Merck KGaA, Darmstadt, Germany, a German corporation with general partners (“Parent”), and EMD Holdings Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Parent. Refer to footnote 11, Subsequent Events for more information.

    2. Basis of Presentation
    The Company’s unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States, or U.S. GAAP, for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission, or SEC, and should be read in conjunction with the Company's consolidated financial statements and notes thereto contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on February 20, 2025. The condensed consolidated financial statements presented in this Quarterly Report on Form 10-Q are unaudited; however, in the opinion of management, such financial statements reflect all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods presented.
    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 in the financial statements and accompanying notes. Significant estimates and assumptions reflected in these consolidated financial statements include, but are not limited to, gross to net revenue calculations and the valuation of equity-based compensation awards. The Company bases its estimates on historical experience, known trends and other market-specific or relevant factors that it believes to be reasonable under the circumstances. Actual results may differ from those estimates. On an ongoing basis, management evaluates its estimates and adjusts those estimates and assumptions when facts or circumstances change. Changes in estimates are recorded in the period in which they become known.
    Summary of Significant Accounting Policies
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    The Company’s significant accounting policies are described in Note 3 to the Company’s audited consolidated financial statements included in its Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on February 20, 2025. There have been no significant changes in the Company’s significant accounting policies from those disclosed in its Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on February 20, 2025.
    Recently Adopted and Recently Issued Accounting Pronouncements
    There were no recently adopted accounting pronouncements that had a material impact on the Company's financial statements.
    In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures, to provide more detailed income tax disclosure requirements. The guidance requires entities to disclose disaggregated information about their effective tax rate reconciliation as well as information on income taxes paid. The disclosure requirements should be applied on a prospective basis, with the option to apply it retrospectively. The effective date for the standard is for fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company does not expect ASU 2023-09 to have a material impact on the Company's financial statements.
    3. Marketable Securities
    The following table summarizes the Company’s available-for-sale marketable securities as of March 31, 2025 and December 31, 2024:
    As of March 31, 2025
    (in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
    Marketable securities:
    Short-term investments:
    U.S. government securities$152,173 $164 $— $152,337 
    Corporate debt securities71,499 263 — 71,762 
    Long-term investments:
    U.S. government securities51,463 — (36)51,427 
    Corporate debt securities43,305 51 — 43,356 
    Total$318,440 $478 $(36)$318,882 
    As of December 31, 2024
    (in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
    Marketable securities:
    Short-term investments:
    U.S. government securities$160,565 $469 $— $161,034 
    Corporate debt securities57,076 150 — 57,226 
    Commercial paper19,974 — — 19,974 
    Long-term investments:
    U.S. government securities81,363 — (381)80,982 
    Corporate debt securities72,885 66 — 72,951 
    Total$391,863 $685 $(381)$392,167 
    The Company’s marketable securities are available-for-sale securities and consist of high-quality, highly liquid debt securities including corporate debt securities, U.S. government securities, and commercial paper.
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    The Company’s securities classified as short-term marketable securities mature within one year or less of the balance sheet date. Marketable securities that mature greater than one year from the balance sheet date are classified as long-term. As of March 31, 2025, the Company did not hold any investments with maturity dates greater than five years.
    As of, and for the three months ended March 31, 2025, the Company did not have any allowance for credit losses or impairments of its marketable securities.
    4. Fair Value Measurements
    The fair value of the Company’s financial assets measured on a recurring basis are classified based upon a fair value hierarchy consisting of the following three levels:
    Level 1 — Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets, or liabilities.
    Level 2 — Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the instrument.
    Level 3 — Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).
    The fair value hierarchy is based on inputs to valuation techniques used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions.
    As of March 31, 2025 and December 31, 2024, the Company's financial assets and liabilities measured at fair value on a recurring basis consisted of the following:
    As of March 31, 2025
    Fair Value Hierarchy
    (in thousands)TotalLevel 1Level 2Level 3
    Financial instruments carried at fair value (asset position):
    Cash equivalents:
    Money market funds$27,383 $27,383 $— $— 
    Short-term investments:
    U.S. government securities152,337 152,337 — — 
    Corporate debt securities71,762 — 71,762 — 
    Long-term investments:
    U.S. government securities51,427 51,427 — — 
    Corporate debt securities43,356 — 43,356 — 
    Total$346,265 $231,147 $115,118 $— 
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    As of December 31, 2024
    Fair Value Hierarchy
    (in thousands)TotalLevel 1Level 2Level 3
    Financial instruments carried at fair value (asset position):
    Cash equivalents:
    Money market funds$19,904 $19,904 $— $— 
    Short-term investments:
    U.S. government securities161,034 161,034 — — 
    Corporate debt securities57,226 — 57,226 — 
    Commercial paper19,974 — 19,974 — 
    Long-term investments:
    U.S. government securities80,982 80,982 — — 
    Corporate debt securities72,951 — 72,951 — 
    Total$412,071 $261,920 $150,151 $— 
    As of March 31, 2025 and December 31, 2024, the Company’s financial assets measured at fair value on a recurring basis using a market approach included cash equivalents, which consist of money market funds, and marketable securities, which consist of high-quality, highly liquid available-for-sale debt securities including corporate debt securities, U.S. government securities, and commercial paper.
    The Company’s money market funds are readily convertible into cash and the net asset value of each fund on the last day of the quarter is used to determine fair value. The U.S. government securities are classified as Level 1 and valued utilizing quoted market prices. The Company’s corporate debt securities, and commercial paper are classified as Level 2 and valued utilizing various market and industry inputs.
    The Company considers all highly liquid instruments that have maturities of three months or less when acquired to be cash equivalents. The carrying amounts for cash equivalents, accounts payable, and accrued expenses approximate fair value due to their short-term maturities.
    5. Collaboration, Licensing and Variable Interest Entities
    MapKure
    In June 2019, the Company announced the formation of MapKure LLC, or MapKure, an entity jointly owned by the Company and BeiGene Ltd., or BeiGene. BeiGene licensed to MapKure exclusive rights to brimarafenib (BGB-3245). During March 2025, the Company and BeiGene made the decision to wind-down MapKure and cease further investment in the joint venture following a review of the totality of data generated across clinical trials of brimarafenib. Concurrently with this decision, the MapKure joint steering committee, which includes the Company, elected to discontinue the Phase 1b combination trial of brimarafenib with panitumumab, a monoclonal antibody targeting Epidermal Growth Factor Receptor, or EGFR, in colorectal and pancreatic cancer patients with known MAPK pathway mutations. As a result, and following the recent terminations of other monotherapy and combination studies, there remain no ongoing programs under development by MapKure. As of March 31, 2025, the Company’s ownership interest in MapKure was 39.7%.
    The Company recognized an equity loss of $1.7 million and $1.0 million for the three-month periods ended March 31, 2025 and March 31, 2024, respectively. In addition, based on the decision to wind-down MapKure, the Company fully impaired the carrying value of the investment of $2.5 million, and included the Company’s portion of funding to support wind-down activities, estimated at $2.4 million. This resulted in a total impairment charge of $4.9 million, which is included in Interest and other (expense) income, net. These commitments are expected to replace the $6.2 million due from the Company at each of the second and third closings previously established by the Series C preferred unit purchase agreement.
    6. Accrued Expenses
    Accrued expenses consists of the following:
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    March 31,December 31,
    (in thousands)20252024
    Accrued compensation and benefits$15,596 $31,216 
    Accrued research and development14,644 28,573 
    Accrued milestone6,000 — 
    Accrued other29,399 26,223 
    Total accrued expenses$65,639 $86,012 
    GOMEKLI was approved by the FDA on February 11, 2025 for the treatment of adult and pediatric patients two years of age and older with neurofibromatosis type 1, or NF1, who have symptomatic plexiform neurofibromas, or PN, not amenable to complete resection. Upon the first commercial sale of GOMEKLI in February 2025, a milestone payment of $6.0 million is due to Pfizer, which has been accrued and included in accrued expenses as of March 31, 2025. This milestone payment is due 180 days after the milestone is met and is expected to be paid in the third quarter of 2025.
    7. Commitments and Contingencies
    The Company enters into contracts in the normal course of business for clinical trials, preclinical studies, manufacturing and other services and products for operating purposes. These contracts generally provide for termination following a certain period after notice and therefore the Company believes that non-cancelable obligations under these agreements are not material.
    Additionally, the Company has excluded milestone or royalty payments or other contractual payment obligations as the timing and amounts of such obligations are unknown or uncertain.
    Contingencies
    From time to time, the Company may be involved in disputes or regulatory inquiries that arise in the ordinary course of business. When the Company determines that a loss is both probable and reasonably estimable, a liability is recorded and disclosed if the amount is material to the financial statements taken as a whole. When a material loss contingency is only reasonably possible, the Company does not record a liability, but instead discloses the nature and the amount of the claim, and an estimate of the loss or range of loss, if such an estimate can reasonably be made.
    As of March 31, 2025, there was no litigation or contingency with at least a reasonable possibility of a material loss.
    8. Equity-Based Compensation
    2019 Equity Incentive Plan
    The Company's 2019 Stock Option and Incentive Plan, or 2019 Equity Incentive Plan, provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock units, restricted stock awards, unrestricted stock awards and dividend equivalent rights to the Company’s officers, employees, directors and other key persons (including consultants). The number of shares available for issuance under the 2019 Equity Incentive Plan is cumulatively increased each January 1, through and including January 1, 2030, by 5% of the number of shares of Common Stock outstanding on the immediately preceding December 31 or such lesser number of shares as determined by the compensation committee of the Company’s board of directors.
    As of March 31, 2025, there were 5,046,965 shares available for issuance in connection with future awards under the 2019 Equity Incentive Plan.
    Equity-Based Awards
    During the three months ended March 31, 2025, the Company granted 1,139,369 stock option awards to its officers, employees and directors under the 2019 Equity Incentive Plan.
    During the three months ended March 31, 2025, the Company awarded 1,208,258 restricted stock units to its officers, employees and directors under the 2019 Equity Incentive Plan.
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    During the three months ended March 31, 2025, 11,101 restricted stock awards previously issued to employees of the Company were released, 708,468 restricted stock units vested and 89,972 stock options were exercised. As of March 31, 2025, there were 8,913,890 stock options vested and exercisable.
    Performance Stock Units
    On January 10, 2025, the Company’s officers were granted 229,813 performance based restricted stock units (the target amount) that are subject to a total shareholder return, or TSR, market condition based on the Company’s relative TSR percentile rank compared to companies in the NASDAQ Biotechnology Index during the three-year performance period, and are eligible to be earned and vested from 0% to 150% of the target amount.
    Equity-based compensation expense included in the condensed consolidated statements of operations for each of the periods presented is as follows:
    Three Months Ended March 31,
    (in thousands)20252024
    Research and development$9,627 $12,423 
    Selling, general and administrative20,321 18,039 
    Total equity-based compensation expense$29,948 $30,462 
    As of March 31, 2025, the unrecognized compensation expense related to unvested stock options, restricted stock units and performance stock units was $116.5 million, $84.8 million and $17.1 million, respectively, which is expected to be recognized over a weighted-average remaining period of approximately 2.40 years, 2.14 years and 2.08 years, respectively.
    As of March 31, 2025, the Company had 13,719,661 stock options outstanding, 2,523,738 unvested restricted stock units and 507,388 unvested performance stock units.
    9. Net Loss per Share
    Since the Company had a net loss in each of the periods presented, basic and diluted net loss per share are the same. The table below provides potentially dilutive securities not included in the computation of the diluted net loss per share for the periods ended March 31, 2025 and March 31, 2024 because to do so would be anti-dilutive:
    As of March 31,
    20252024
    Common stock options issued and outstanding13,719,661 13,054,654 
    Restricted stock units subject to future vesting2,523,738 2,076,809 
    Performance stock units subject to future vesting507,388 372,362 
    Restricted stock awards subject to future vesting— 48,561 
    Total potentially dilutive securities16,750,787 15,552,386 
    10. Segment Reporting
    The Company has one reportable segment relating to developing and commercializing life-changing medicines.
    The Company's chief operating decision maker, or CODM, is its chief executive officer. When evaluating the Company’s financial performance, the CODM reviews total revenues, total expenses and expenses by function and the CODM makes decisions using this information on a company-wide basis.
    The table below is a summary of the segment net loss, including significant segment expenses by function:

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    Three Months Ended March 31,
    (in thousands)20252024
    Revenue$49,087 $21,006 
    Less segment expenses:
    Cost of product revenue3,527 1,202 
    Commercial40,564 28,078 
    General and administrative35,937 32,035 
    Development and discovery31,072 39,744 
    Medical18,523 13,878 
    Total operating and segment expenses129,623 114,937 
    Interest and other (expense) income, net(998)7,571 
    Equity method investment loss(1,653)(1,025)
    Segment and consolidated net loss$(83,187)$(87,385)
    11. Subsequent Events
    On April 27, 2025, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Merck KGaA, Darmstadt, Germany, a German corporation with general partners (“Parent”), and EMD Holdings Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Parent. 

    At the effective time of the Merger, each share of common stock of the Company (other than (i) shares owned by Parent, Merger Sub or any other wholly owned subsidiary of Parent, the Company or any wholly owned subsidiary of the Company, in each case not held on behalf of third parties, immediately prior to the effective time of the Merger and (ii) shares that are held by any person who is entitled to demand and properly demands appraisal of such shares pursuant to, and who complies in all respects with Section 262 of the Delaware General Corporation Law) will automatically be cancelled and converted into the right to receive an amount in cash equal to $47.00, without interest and subject to applicable withholding taxes.

    The Merger is subject to customary closing conditions, including the affirmative vote of holders of at least a majority of the outstanding shares of the Company’s common stock entitled to vote on the adoption of the Merger Agreement at a meeting of Company stockholders duly called and held for such purpose, the expiration of the applicable waiting periods (and any extension thereof) under the Hart-Scott Rodino Antitrust Improvements Act of 1976 and a certain foreign antitrust and competition law, each as amended, and other customary closing conditions. The Merger Agreement contains customary termination rights for the Company and Parent. If the Merger Agreement is terminated by the Company under specified circumstances, it will be required to pay Parent a termination fee of $145.6 million in cash.
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    Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
    The following discussion and analysis of the financial condition and results of operations of SpringWorks Therapeutics, Inc. should be read in conjunction with the condensed consolidated financial statements and the related notes thereto included elsewhere in this Quarterly Report on Form 10-Q, or Quarterly Report, and our consolidated financial statements and notes thereto contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, or 2024 Form 10-K, filed with the Securities and Exchange Commission, or SEC, on February 20, 2025. Unless the context otherwise requires, all references to "we," "us," "our," "SpringWorks," or the "Company" refer to SpringWorks Therapeutics, Inc., together with its subsidiaries. This discussion and analysis contains forward-looking statements based upon current expectations that involve risks and uncertainties. We caution you that forward-looking statements are not guarantees of future performance, and that our actual results of operations, financial condition and liquidity, and the developments in our business and the industry in which we operate, may differ materially from the results discussed or projected in the forward-looking statements contained in this Quarterly Report. We discuss risks and other factors that we believe could cause or contribute to these potential differences elsewhere in this Quarterly Report, including in Part II, Item 1A. “Risk Factors” and under “Special Note Regarding Forward-Looking Statements.” In addition, even if our results of operations, financial condition and liquidity, and the developments in our business and the industry in which we operate are consistent with the forward-looking statements contained in this Quarterly Report, they may not be predictive of results or developments in future periods. We caution readers not to place undue reliance on any forward-looking statements made by us, which speak only as of the date they are made. We disclaim any obligation, except as specifically required by law and the rules of the SEC to publicly update or revise any such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements.
    Overview
    We are a commercial-stage biopharmaceutical company applying a precision medicine approach to developing and commercializing life-changing medicines for underserved patient populations suffering from devastating rare diseases and cancer. We have a differentiated portfolio of small molecule targeted oncology assets, including two approved products and several clinical and preclinical candidates at various stages of development, and are advancing programs in rare tumor types as well as highly prevalent, genetically defined cancers. Our strategic approach and operational excellence across research, translational science, and clinical development have enabled us to successfully launch two products, investigate additional product candidates across various clinical trials, and enter into multiple shared-value partnerships with industry leaders to expand our portfolio. From this foundation, we are continuing to build a differentiated, fully-integrated, commercial-stage biopharmaceutical company intensely focused on understanding patients and their diseases in order to develop transformative targeted medicines.
    Pending Transaction with Merck KGaA, Darmstadt, Germany
    On April 27, 2025, the Company, entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Merck KGaA, Darmstadt, Germany, a German corporation with general partners (“Parent”), and EMD Holdings Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Parent. At the effective time of the Merger, each share of common stock of the Company (other than (i) shares owned by Parent, Merger Sub or any other wholly owned subsidiary of Parent, the Company or any wholly owned subsidiary of the Company, in each case not held on behalf of third parties, immediately prior to the effective time of the Merger and (ii) shares that are held by any person who is entitled to demand and properly demands appraisal of such shares pursuant to, and who complies in all respects with Section 262 of the Delaware General Corporation Law) will automatically be cancelled and converted automatically into the right to receive an amount in cash equal to $47.00, without interest, subject to applicable withholding taxes.
    The Merger is subject to customary closing conditions, including the affirmative vote of holders of at least a majority of the outstanding shares of the Company’s common stock entitled to vote on the adoption of the Merger Agreement at a meeting of Company stockholders duly called and held for such purpose, the expiration of the applicable waiting periods (and any extension thereof) under the Hart-Scott Rodino Antitrust Improvements Act of 1976 and a certain foreign antitrust and competition law, each as amended, and other customary closing conditions. The Merger Agreement contains customary termination rights for the Company and Parent. If the Merger Agreement is terminated by the Company under specific circumstances, it will be required to pay Parent a termination fee of $145.6 million in cash.
    Our Products and Product Candidates
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    OGSIVEO® (nirogacestat), our first commercial product, was approved by the United States Food and Drug Administration, or FDA, on November 27, 2023. OGSIVEO is a novel, oral, selective gamma secretase inhibitor that is the first and only FDA-approved therapy for the treatment of adult patients with progressing desmoid tumors who require systemic treatment.
    The FDA approval of OGSIVEO was based on the results from the Phase 3 DeFi trial, which were published in the March 9, 2023 edition of the New England Journal of Medicine. DeFi was a global, randomized (1:1), double-blind, placebo-controlled Phase 3 trial evaluating the efficacy, safety and tolerability of nirogacestat in adult patients with progressing desmoid tumors. The study randomized 142 patients to receive 150 mg of nirogacestat or placebo twice daily. OGSIVEO met the primary endpoint of improving progression-free survival, or PFS, demonstrating a statistically significant improvement for nirogacestat over placebo, with a 71% reduction in the risk of disease progression (hazard ratio (HR) = 0.29 (95% CI: 0.15, 0.55); p< 0.001). Median PFS was not reached in the OGSIVEO arm and was 15.1 months in the placebo arm. Confirmed objective response rate, or ORR, based on RECIST v1.1 was 41% with OGSIVEO versus 8% with placebo (p<0.001); the complete response rate was 7% in the OGSIVEO arm and 0% in the placebo arm. The median time to first response was 5.6 months with OGSIVEO and 11.1 months with placebo. PFS and ORR improvements were in favor of OGSIVEO regardless of baseline characteristics including sex, tumor location, tumor focality, treatment status, previous treatments, mutational status and history of familial adenomatous polyposis. OGSIVEO also demonstrated early and sustained improvements in patient-reported outcomes, including pain, desmoid tumor-specific symptoms, physical/role function and overall health-related quality of life.
    OGSIVEO exhibited a manageable safety and tolerability profile. The most common adverse events (>15%) reported in patients receiving OGSIVEO were diarrhea, ovarian toxicity, rash, nausea, fatigue, stomatitis, headache, abdominal pain, cough, alopecia, upper respiratory tract infection and dyspnea. Warnings & Precautions include diarrhea, ovarian toxicity, hepatotoxicity, non-melanoma skin cancers, electrolyte abnormalities and embryo-fetal toxicity.
    Long-term efficacy and safety data from DeFi were presented at the Connective Tissue Oncology Society, or CTOS, 2024 Annual Meeting on November 16, 2024. These results, utilizing an August 2024 data cutoff date, showed that longer-term treatment with OGSIVEO was associated with further reductions in tumor size, increase in ORR with additional complete responses, sustained improvement in desmoid tumor symptoms, and no new safety signals compared to the April 2022 primary data cut. In March 2025, we submitted the long-term efficacy and safety data from DeFi to a peer-reviewed journal, with publication anticipated by the end of 2025.

    OGSIVEO is the first and only FDA-approved treatment indicated specifically for desmoid tumors. Nirogacestat is recommended as a National Comprehensive Cancer Network, or NCCN, Category 1, Preferred treatment option for desmoid tumors in the NCCN Clinical Practice Guidelines in Oncology, or NCCN Guidelines®, for Soft Tissue Sarcoma. Additionally, a June 2024 review of the current management of desmoid tumors from the Desmoid Tumor Working Group, or DTWG, highlighted nirogacestat’s role as the first approved medicine for the disease and its incorporation into the desmoid tumor treatment algorithm.

    We are advancing a commercial strategy focused on reinforcing OGSIVEO's position as the systemic standard of care for adult desmoid tumor patients. For the three months ended March 31, 2025, we recorded net product revenue of $44.1 million from sales of OGSIVEO in the United States.

    We are also seeking to expand the reach of OGSIVEO to additional geographies. In February 2024, we received validation for a Marketing Authorization Application, or MAA, from the European Medicines Agency, or EMA, for the treatment of adults with desmoid tumors. We anticipate the Committee for Medicinal Products for Human Use, or CHMP, of the EMA will adopt an opinion on the MAA in the second quarter of 2025. Pre-commercial preparations are underway ahead of expected launch in the second half of 2025. Beyond the United States and Europe, we continue to advance our efforts to bring OGSIVEO to the market in additional territories, such as Japan.
    GOMEKLITM (mirdametinib), our second commercial product, was approved by the FDA on February 11, 2025. GOMEKLI is an oral, small molecule mitogen-activated protein kinase kinase, or MEK, inhibitor, indicated for the treatment of adult and pediatric patients two years of age and older with neurofibromatosis type 1, or NF1, who have symptomatic plexiform neurofibromas, or PN, not amenable to complete resection. With the approval of GOMEKLI, we received a rare pediatric disease priority review voucher from the FDA.
    A milestone was met upon the first commercial sale of GOMEKLI in February 2025, and a milestone payment of $6.0 million is due to Pfizer, which has been accrued and included in accrued expenses as of March 31, 2025. This milestone is expected to be paid in the third quarter of 2025.
    The FDA approval of GOMEKLI was based on the results from the registrational Phase 2b ReNeu trial in adult and pediatric patients with NF1-PN. In November 2023, we announced positive topline results from the ReNeu trial, and we presented
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    additional data from the ReNeu trial at the American Society of Clinical Oncology, or ASCO, Annual Meeting in June 2024. The results of the ReNeu trial were subsequently published in the Journal of Clinical Oncology in November 2024. The ReNeu trial enrolled 114 patients in two cohorts (pediatric and adult) across 50 sites in the United States. The primary endpoint was confirmed objective response rate, or ORR, defined as ≥ 20% reduction in target tumor volume as measured by MRI and assessed by Blinded Independent Central Review, or BICR. As of the data cutoff date of September 20, 2023, 52% (29/56) of pediatric patients and 41% (24/58) of adult patients had BICR confirmed objective responses within the 24-cycle treatment period (cycle length: 28 days). An additional pediatric patient and two additional adult patients achieved confirmed objective responses after Cycle 24 in the long-term follow up phase of the trial, where patients continue to receive GOMEKLI treatment. Median (range) best percent change from baseline in target tumor volume was -42% (-91% to 48%) and -41% (-90% to 13%) in the pediatric and adult cohorts, respectively; among study participants with a confirmed objective response on GOMEKLI, 52% of children and 62% of adults achieved a >50% reduction in tumor volume. As of the data cutoff, the median duration of treatment was 22 months in both the pediatric and adult cohorts; the median time to onset of response was 7.9 months in pediatric patients and 7.8 months in adult patients. Median duration of response was not reached in either cohort. Pediatric and adult patients in the ReNeu trial also experienced statistically significant improvements from baseline in worst tumor pain severity, pain interference, and health-related quality of life, as assessed across multiple patient-reported outcome, or PRO, tools. Children and adults with NF1-PN in the ReNeu trial reported early, sustained, and clinically meaningful reductions in worst tumor pain severity and pain interference over the course of GOMEKLI treatment.
    GOMEKLI exhibited a manageable safety and tolerability profile. The most common adverse events (>25%) reported in adult patients receiving GOMEKLI were rash, diarrhea, nausea, musculoskeletal pain, vomiting, and fatigue; in pediatric patients, the most common adverse events (>25%) were rash, diarrhea, musculoskeletal pain, abdominal pain, vomiting, headache, paronychia, left ventricular dysfunction, and nausea. Warnings & Precautions include ocular toxicity, left ventricular dysfunction, dermatological adverse reactions, and embryo-fetal toxicity.
    GOMEKLI is the first and only FDA-approved treatment indicated for both adult and pediatric patients with NF1-PN. We believe that GOMEKLI represents a differentiated and potentially best-in-class option for NF1-PN. In March 2025, the NCCN Guidelines® for Central Nervous System Cancers were updated to recommend mirdametinib as an NCCN Category 2a systemic therapy option for the treatment of adult and pediatric patients two years of age and older with NF1 who have symptomatic PN not amenable to complete resection.
    We are advancing a targeted launch strategy focused on positioning GOMEKLI as the standard of care for both adult and pediatric NF1-PN patients. To support commercialization of GOMEKLI, we have assembled a U.S. commercial field organization of 35 territory business managers plus regional business directors. For the three months ended March 31, 2025, we recorded net product revenue of $4.9 million from sales of GOMEKLI in the United States.
    We are also seeking to expand the reach of GOMEKLI to additional geographies. In August 2024, we received validation for an MAA from the EMA for the treatment of adult and pediatric patients with NF1-PN. We expect to receive a regulatory decision on mirdametinib from the EC and launch our product, if approved, in 2025. Beyond the United States and Europe, we continue to evaluate additional territories in which to potentially bring GOMEKLI to the market.

    We are also seeking to expand the opportunity set for nirogacestat and mirdametinib in additional rare oncology indications and more prevalent, genetically defined cancers. Additionally, we are advancing a portfolio of early-stage product candidates in areas of high unmet need.

    We completed the primary analysis from a Phase 2 trial evaluating nirogacestat as a monotherapy in adult patients with recurrent ovarian granulosa cell tumors, or GCT, a subtype of ovarian cancer. In April 2025, we submitted the results from the Phase 2 trial to a peer-reviewed journal, with publication anticipated by the end of 2025.

    In hematologic malignancies, we are evaluating novel combination regimens of nirogacestat alongside B-cell maturation antigen, or BCMA, directed therapies for the treatment of multiple myeloma. We have entered into several, non-exclusive clinical collaboration agreements with industry partners to evaluate nirogacestat in combination with multiple different BCMA-directed therapies. Each partner is responsible for the conduct and expenses of a clinical trial to evaluate the combination of nirogacestat with its respective BCMA agent in multiple myeloma. To date, we have generated clinical data across several modalities that support nirogacestat’s ability to potentiate BCMA and enhance activity of BCMA targeted therapies at clinically achievable doses. Several Phase 1 studies are currently ongoing through our collaborators.

    In genetically defined metastatic solid tumors, our current clinical-stage efforts center on the mitogen activated protein kinase, or MAPK, pathway. We are evaluating mirdametinib for the treatment of solid tumors harboring MAPK aberrations, including
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    for the treatment of pediatric and young adult patients with low-grade gliomas. Data from the Phase 1 portion of an ongoing Phase 1/2 clinical trial being conducted by St. Jude Children’s Research Hospital study were presented at the Society of Neuro-Oncology Annual Meeting in November 2024 and showed encouraging clinical activity in patients with recurrent or progressive pediatric low-grade glioma. The Phase 2 portion of the study is ongoing and enrolling patients.

    In June 2019, we announced the formation of MapKure, LLC, an entity jointly owned by us and BeiGene. BeiGene licensed to MapKure exclusive rights to brimarafenib, a novel, investigational, oral, selective small molecule inhibitor of monomeric and dimeric forms of activating BRAF mutations. In March 2025, we and BeiGene made the decision to wind-down MapKure and cease further investment in the joint venture following a review of the totality of data generated across clinical trials of brimarafenib. Concurrently with this decision, the MapKure joint steering committee, which includes the Company, elected to discontinue the Phase 1b combination trial of brimarafenib with panitumumab, a monoclonal antibody targeting Epidermal Growth Factor Receptor, or EGFR, in colorectal and pancreatic cancer patients with known MAPK pathway mutations. As a result, and following the recent terminations of other monotherapy and combination studies, there remain no ongoing programs under development by MapKure. Future financial commitments are expected to support wind-down activities, which are expected to conclude in early 2026 and are expected to be substantially less relative to the previously contemplated funding requirements as prescribed in the Series C preferred unit purchase agreement.

    We intend to continue to build our portfolio with assets that have strong biological rationales and validated mechanisms of action. Our early-stage pipeline includes SW-682, an investigational oral, small molecule TEA Domain, or TEAD, inhibitor that we in-licensed from Katholieke Universiteit Leuven and the Flanders Institute for Biotechnology in 2021. In June 2024, we initiated a Phase 1a trial of SW-682 in Hippo-mutant solid tumors; patient enrollment and dosing is ongoing.

    Additionally, in January 2025, we announced an exclusive worldwide license agreement with Rappta Therapeutics Oy, or Rappta, pursuant to which we in-licensed a portfolio of novel small molecule activators of protein phosphatase 2a, or PP2A, complexes. The primary compound covered by the license agreement is SW-3431, formerly known as RPT04402, an investigational, potentially first-in-class, PP2A activator. We expect to file an IND for SW-3431 in aggressive subsets of uterine cancer, including uterine serous carcinoma and uterine carcinosarcoma, with the FDA by the end of 2025.

    We are also pursuing development of discovery programs that represent potentially first-in-class and best-in-class product candidates designed to address tumors where no or limited treatment options exist. We continue to invest in our R&D infrastructure in a focused manner in order to support both our drug discovery capabilities and our translational medicine activities for development programs. We also plan to continue exploring shared-value partnerships to maximize the potential of our therapies to transform the lives of oncology patients.
    Components of our results of operations
    Product revenue, net
    In November 2023, the FDA approved OGSIVEO for the treatment of adult patients with progressing desmoid tumors who require systemic treatment. In February 2025, the FDA approved GOMEKLI for the treatment of adult and pediatric patients two years of age and older with NF1 who have symptomatic PN not amenable to complete resection. In December 2023, we began to generate revenue from sales of OGSIVEO in the United States and in February 2025, we began to generate revenue from sales of GOMEKLI in the United States. We record product revenue net of estimated discounts, chargebacks, rebates, product returns, and other gross-to-net revenue deductions.
    Operating costs and expenses
    Cost of Product Revenue
    Our cost of product revenue includes the cost of goods sold, amortization expense for commercial milestones and royalty expense. Our cost of goods sold consists of raw materials, third-party manufacturing costs to manufacture the raw materials into finished product, freight and other costs associated with sales of commercial products.
    Selling, general and administrative expenses
    Selling, general and administrative expenses consist primarily of salaries and related costs, including equity-based compensation, for personnel in executive, finance, corporate, commercial, business development and administrative functions. Selling, general and administrative expenses also include consulting services, legal fees relating to patent and corporate matters; professional fees for accounting, auditing and tax services; insurance costs; administrative travel expenses; and facility-related expenses, which include direct depreciation costs and allocated expenses for rent and maintenance of facilities and other operating costs.
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    We anticipate that our selling, general and administrative expenses will increase in the future as we increase our headcount to expand operations to support the organization, including commercialization efforts.

    Research and development expenses
    Our research and development expenses consist of expenses incurred in connection with the development of our product candidates. These expenses include:
    •employee-related expenses, which include salaries, benefits and equity-based compensation for our research and development personnel;
    •fees paid to consultants for services directly related to our research and development programs;
    •expenses incurred under agreements with third-party contract research organizations, investigative clinical trial sites, academic institutions and consultants that conduct research and development activities on our behalf or in collaboration with us;
    •costs associated with discovery biology and medicinal chemistry efforts and with preclinical and clinical trials;
    •costs associated with the manufacture of drug substance and finished drug product for preclinical testing and clinical trials;
    •costs associated with technology and intellectual property licenses; and
    •an allocated portion of facilities and facility-related costs, which include expenses for rent and other facility-related costs and other supplies.
    External costs for research and development expenses are tracked on a program-by-program basis. Expenditures for clinical development, including upfront licensing fees and milestone payments associated with our product candidates, are charged to research and development expense as incurred. These expenses consist of expenses incurred in performing development activities, including salaries and benefits, materials and supplies, preclinical expenses, clinical trial and related clinical manufacturing expenses, depreciation of equipment, contract services and other outside expenses. Costs for certain development activities, such as manufacturing and clinical trials, are recognized based on an evaluation of the progress to completion of specific tasks using either time-based measures or data such as information provided to us by our vendors on actual activities completed or costs incurred.
    We expect our research and development expenses to increase for the foreseeable future as we continue to invest in activities related to developing our product candidates and our preclinical programs, and as certain product candidates advance through clinical development, including SW-682, which is being studied in Hippo-mutant solid tumors in a Phase 1a trial, and SW-3431, which is in preclinical development for rare uterine cancers. The process of conducting the necessary clinical trials to obtain regulatory approval is costly and time-consuming, and the successful development of our product candidates is highly uncertain. As a result, we are unable to determine the duration and completion costs of our research and development projects or when and to what extent we will generate revenue from the commercialization and sale of any of our product candidates.
    Interest and other (expense) income
    Interest and other (expense) income consists primarily of interest income and other income/expense, including impairment charges. Interest income consists of interest earned on our cash, cash equivalents and available-for-sale marketable securities.
    Equity method investment loss
    The equity method investment loss represents our share of the losses from the MapKure investment, which is accounted for using the equity method of accounting.
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    Results of Operations
    Comparison of the three months ended March 31, 2025 and March 31, 2024
    The following table summarizes our results of operations for the three months ended March 31, 2025 and March 31, 2024:
    Three Months Ended March 31,
    (in thousands)20252024$ Change% Change
    Revenue:
    Product revenue, net$49,087 $21,006 $28,081 134 %
    Total revenue49,087 21,006 28,081 134 %
    Operating costs and expenses:
    Cost of product revenue3,527 1,202 2,325 193 %
    Selling, general and administrative76,501 60,113 16,388 27 %
    Research and development49,595 53,622 (4,027)(8)%
    Total operating costs and expenses129,623 114,937 14,686 13 %
    Loss from operations(80,536)(93,931)13,395 (14)%
    Interest and other (expense) income:
    Interest and other (expense) income, net(998)7,571 (8,569)(113)%
    Total interest and other (expense) income(998)7,571 (8,569)(113)%
    Equity method investment loss(1,653)(1,025)(628)61 %
    Net loss$(83,187)$(87,385)$4,198 (5)%

    Revenue

    In November 2023, the FDA approved OGSIVEO for the treatment of adult patients with progressing desmoid tumors who require systemic treatment. For the three months ended March 31, 2025, we recorded net product revenue of $44.1 million from sales of OGSIVEO in the United States.

    In February 2025, the FDA approved GOMEKLI for the treatment of adult and pediatric patients two years of age and older with NF1 who have symptomatic PN not amenable to complete resection. For the three months ended March 31, 2025, we recorded net product revenue of $4.9 million from sales of GOMEKLI in the United States.
    Cost of Product Revenue

    Our cost of product revenue includes the royalties associated with sales of OGSIVEO and GOMEKLI in the United States, amortization expense for commercial milestones and cost of goods sold.
    Selling, general and administrative expenses
    Selling, general and administrative expenses increased by $16.4 million to $76.5 million for the three months ended March 31, 2025 from $60.1 million for the three months ended March 31, 2024, an increase of 27%.
    The increase in selling, general and administrative expenses included a $8.3 million increase in consulting and professional services and a $8.1 million increase in internal costs. The increase in consulting and professional services was largely attributable to commercial readiness activities to support the U.S. launch of GOMEKLI, as well as commercial activities supporting the continued U.S. commercialization and European pre-launch preparations for OGSIVEO. The increase in internal costs was attributable to the growth in employee costs associated with increases in the number of personnel, including an increase in equity-based compensation expense, driven by the growth of our commercial organization, which included establishing certain sales support, marketing, and commercialization functions to support the U.S. launch of GOMEKLI.

    Research and development expenses
    Research and development expenses decreased by $4.0 million to $49.6 million for the three months ended March 31, 2025 from $53.6 million for the three months ended March 31, 2024, a decrease of 8%.
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    The decrease in research and development expenses was primarily attributable to a decrease of $2.7 million in internal costs driven by equity-based compensation expense, and a decrease of $1.3 million in external costs related to licensing fees, drug manufacturing, clinical trials, other research, and consulting and professional services.
    We track research and development expenses on a program-by-program basis to the extent such spend is attributable to a specific program. Our research and development expenses by program for the periods presented were as follows:

    Three Months Ended March 31,
    (in thousands)20252024$ Change
    Program specific costs:
    Nirogacestat$14,906 $13,700 $1,206 
    Mirdametinib13,422 16,155 (2,733)
    Other6,034 9,583 (3,549)
    Total program specific costs34,362 39,438 (5,076)
    Non-program specific costs15,233 14,184 1,049 
    Total research and development expenses$49,595 $53,622 $(4,027)
    Interest and other (expense) income
    The decrease in interest and other (expense) income was driven by a decrease in interest income, net, of $3.3 million and MapKure investment total impairment charge of $4.9 million, for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024.
    Liquidity and Capital Resources
    On April 27, 2025, we entered into the Merger Agreement with Parent and Merger Sub, providing for the acquisition of the Company by Parent. Under the terms of the Merger Agreement, we have agreed to various covenants and agreements, including, among others, agreements to conduct our business in the ordinary course of business between the execution of the Merger Agreement and the closing of the Merger. Outside of certain limited exceptions, we may not take certain actions without Parent’s consent, including (i) acquiring businesses and disposing of significant assets, (ii) incurring expenditures above specified thresholds, (iii) incurring debt, (iv) issuing additional securities or (v) repurchasing shares of Company’s common stock. We do not believe these restrictions will prevent us from meeting our ongoing costs of operations, working capital needs or capital expenditure requirements. Under the terms of the Merger Agreement, we may be required to pay Parent a termination fee of $145.6 million if the Merger Agreement is terminated under certain circumstances specified in the Merger Agreement. Moreover, we have incurred, and will continue to incur, significant costs and expenses in connection with the pending transaction. We must pay a material portion of these costs and expenses whether or not the transaction is completed. Payment of any such fees, costs or expenses may require us to use available cash that would have otherwise been available for general corporate purposes or other uses.
    Sources of Liquidity
    We have incurred operating losses and experienced negative operating cash flows since our inception and anticipate that we will continue to incur losses for at least the near future, until we reach profitability, which we currently anticipate achieving in the first half of 2026. Our net loss was $83.2 million and $87.4 million for the three months ended March 31, 2025 and March 31, 2024, respectively. We had an accumulated deficit of $1.2 billion and $1.2 billion as of March 31, 2025 and December 31, 2024, respectively. Based on our cash, cash equivalents and marketable securities balances as of March 31, 2025, management estimates that our liquidity position will enable us to meet operating expenses through at least twelve months after the date that this Quarterly Report is filed. Our marketable securities consist of high-quality, highly liquid available-for-sale debt securities including corporate debt securities, U.S. government securities, and commercial paper.
    Cash Flows
    The following table provides information regarding our cash flows for the three months ended March 31, 2025 and March 31, 2024:
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    Three Months Ended March 31,
    (in thousands)20252024
    Net cash used in operating activities$(68,759)$(78,930)
    Net cash provided by investing activities73,393 21,463 
    Net cash used in financing activities(10,609)(552)
    Net (decrease) increase in cash and cash equivalents(5,975)(58,019)
    Cash and cash equivalents including Restricted cash, beginning of period70,375 176,666 
    Cash and cash equivalents including Restricted cash, end of period$64,400 $118,647 
    Net Cash Used in Operating Activities
    Net cash used in operating activities was $68.8 million for the three months ended March 31, 2025, which was driven by a net loss of $83.2 million, and a net decrease from changes in operating assets and liabilities of $23.7 million, partially offset by equity-based compensation expense of $29.9 million, equity investment loss and impairment of $6.6 million, non-cash operating lease and depreciation and amortization expense of $1.6 million. Net cash used in operating activities was $78.9 million for the three months ended March 31, 2024, driven by a net loss of $87.4 million, and a net decrease from changes in operating assets and liabilities of $24.2 million, partially offset by equity-based compensation expense of $30.5 million.
    Net Cash Provided by Investing Activities
    Net cash provided by investing activities for the three months ended March 31, 2025 was driven by the sale and maturities of available-for-sale debt securities of $73.4 million. Net cash provided by investing activities for the three months ended March 31, 2024 was driven by the sale and maturities of available-for-sale debt securities of $103.9 million, partially offset by purchases of available-for-sale debt securities of $73.6 million and our investment in MapKure of $8.2 million.
    Net Cash Used in Financing Activities
    Net cash used in financing activities for the three months ended March 31, 2025 consisted of stock repurchased to satisfy employee tax withholding obligations upon vesting of restricted stock awards of $12.9 million, partially offset by proceeds from stock option exercises of $2.3 million. Net cash used in financing activities for the three months ended March 31, 2024 consisted of stock repurchased to satisfy employee tax withholding obligations upon vesting of restricted stock awards, partially offset by proceeds from stock option exercises.
    Funding Requirements
    Our primary use of cash is to fund operating expenses, including our research and development programs, as well as our commercialization activities and corporate operations. Cash used to fund operating expenses is impacted by the timing of when we pay these expenses, as reflected in the change in our outstanding accounts payable, accrued expenses and prepaid expenses.
    Our future funding requirements will depend on many factors, including the following:
    •costs to launch, promote and support commercialization of OGSIVEO and GOMEKLI, and the level of commercial success achieved by OGSIVEO and GOMEKLI;
    •the initiation, progress, timing, costs and results of clinical trials for our product candidates; including any unforeseen costs we may incur as a result of clinical trial delays due to ongoing global and regional conflicts, or other causes;
    •the clinical and preclinical development and manufacturing plans we establish for our product candidates;
    •the number and characteristics of product candidates that we develop or in-license;
    •the cost of identifying and evaluating potential product candidates for acquisition or license, including the cost of preclinical activities or clinical activities;
    •the terms of any collaboration or licensing agreements we may choose to enter into;
    •the outcome, timing and cost of meeting regulatory requirements established by the FDA, the EMA, and other comparable foreign regulatory authorities;
    •the cost of filing, prosecuting, defending and enforcing our patent claims and other intellectual property rights;
    •the cost of defending intellectual property disputes, including patent infringement actions brought by third parties against us or our product candidates;
    •the effect of competing technological and market developments;
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    •the cost and timing of completion of commercial-scale outsourced manufacturing activities;
    •the establishment of sales, marketing and distribution capabilities for any product candidates for which we may receive regulatory approval in regions where we choose to commercialize our products on our own or jointly with third parties; and
    •the degree of commercial success achieved following the successful completion of development and regulatory approval activities for a product candidate.
    Because of the numerous risks and uncertainties associated with the development and commercialization of our product candidates, we are unable to estimate the amounts of increased capital outlays and operating expenditures associated with our current and anticipated clinical studies.
    Until such time, if ever, as we can generate sufficient product revenue, we expect to finance our operations through a combination of equity offerings, debt financings, collaborations, strategic alliances and marketing, distribution or licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, current ownership interests will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect rights of common stockholders. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making acquisitions or capital expenditures or declaring dividends. 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 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 research, 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.
    Effects of Inflation
    Although our operations are influenced by general economic conditions, we do not believe that inflation has had a material impact on our business, financial condition, or operating results during the periods presented.
    Contractual Obligations
    During the three months ended March 31, 2025, there were no material changes to our contractual obligations and commitments from those described under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Contractual Obligations” in Part II Item 7. of our 2024 Form 10-K.
    Critical Accounting Policies and Use of Estimates
    This discussion and analysis of our financial condition and results of operations is based on our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts and the related disclosures in the financial statements and accompanying notes. These accounting policies involve critical accounting estimates because they are particularly dependent on estimates and assumptions made by management about matters that are uncertain at the time the accounting estimates are made. We base our estimates on historical experience, known trends and other market-specific or relevant factors that we believe to be reasonable under the circumstances, the results of which form the basis of making judgments; however, because future events and their effects cannot be determined with certainty, actual results may differ from those estimates, judgments or assumptions, and such differences could be material. On an ongoing basis, we evaluate our estimates, judgments and assumptions, and adjust those estimates, judgments and assumptions when facts or circumstances change. Changes in estimates are recorded in the period in which they become known. Although we believe that these estimates are reasonable, actual results could differ.
    We describe our significant accounting policies in Note 3, Summary of Significant Accounting Policies, of the notes to the financial statements included in our 2024 Form 10-K. We discuss our critical accounting estimates in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, in our 2024 Form 10-K. There have been no changes in our significant accounting policies or critical accounting estimates during the three months ended March 31, 2025.
    Item 3. Quantitative and Qualitative Disclosure About Market Risk
    There were no material changes to our market risks from those described in Part II Item 7A. Quantitative and Qualitative Disclosures About Market Risk in our 2024 Form 10-K.
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    Item 4. Controls and Procedures
    Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended, or the Exchange Act), as of the end of the period covered by this report. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures as of the end of the period covered by this report were effective at a reasonable assurance level in ensuring that information required to be disclosed by us in reports that we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms; and (ii) accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely discussions regarding required disclosure. We believe that a control system, no matter how well designed and operated, cannot provide absolute assurance that the objectives of the control system are met, and no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected.
    There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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    PART II. Other Information
    Item 1. Legal Proceedings
    As of the date of this Quarterly Report on Form 10-Q, we are not a party to any material legal proceedings. In the future, we may be involved in various claims and legal proceedings relating to claims arising out of our operations. The outcome of litigation cannot be predicted with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to us, which could materially affect our financial condition or results of operations.
    Item 1A. Risk Factors
    In addition to the other information contained elsewhere in this report and below, you should carefully consider the risks and uncertainties described in “Part I, Item 1A—Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2024, or 2024 Form 10-K, filed with the Securities and Exchange Commission, or SEC, on February 20, 2025, which could materially and adversely affect our business, prospects, financial condition and results of operations. New risk factors can emerge from time to time, and it is not possible to predict the impact that any factor or combination of factors may have on our business, prospects, financial condition and results of operations. The risk factors disclosure in our 2024 Form 10-K is qualified by the information that is described in this Quarterly Report on Form 10-Q. The risks described below and in our 2024 Form 10-K are not our only risks. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results. Other than the risk factors listed below, there are no material changes to the Risk Factors described in our 2024 10-K.
    Risks Related to the Pending Transaction with Merck KGaA, Darmstadt, Germany
    We may not complete the pending transaction with Merck, KGaA, Darmstadt, Germany within the time frame we anticipate, or at all, which could have a material adverse effect on our business, financial condition, results of operations, and/or stock price.

    On April 27, 2025, we entered into the Merger Agreement with Merck, KGaA, Darmstadt, Germany (“Parent”) and EMD Holdings Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Parent.

    The completion of the Merger is subject to the satisfaction or waiver of certain customary closing conditions, including (i) the adoption of the Merger Agreement by the affirmative vote of holders of at least a majority of the outstanding shares of our common stock entitled to vote on the adoption of the Merger Agreement at a meeting of stockholders duly called and held for such purpose, (ii) the expiration or termination of any applicable waiting periods, and the receipt of approvals, under U.S. and a certain foreign antitrust and competition law, (iii) the absence of any governmental order or law that makes consummation of the Merger illegal or otherwise prohibited, (iv) the accuracy of the other party’s representations and warranties, subject to certain customary materiality or de minimis standards set forth in the Merger Agreement, (v) compliance in all material respects with the other party’s obligations under the Merger Agreement, and (vi) no Material Adverse Effect (as defined in the Merger Agreement) having occurred since the date of the Merger Agreement.

    The Merger Agreement contains termination rights, including, among others, (i) if the consummation of the Merger does not occur on or before October 27, 2025, subject to extension by either party to January 27, 2026 in certain circumstances related to obtaining regulatory clearances and (ii) subject to certain conditions, if we wish to terminate the Merger Agreement to enter into a definitive agreement with respect to a Superior Proposal (as defined in the Merger Agreement). In connection with the termination of the Merger Agreement under specified circumstances, including the termination by Parent in the event of a change of recommendation by our board of directors to enter into an Alternative Acquisition Agreement (as defined in the Merger Agreement) providing for a Superior Proposal, we would be required to pay Parent a termination fee of $145.6 million.

    If the pending Merger is not completed within the expected time frame or at all, we may be subject to a number of material risks, including to the extent that the current market price of our common stock is positively affected by a market assumption that the Merger will be completed. We could be required to pay Parent a termination fee of $145.6 million if the Merger Agreement is terminated under specific circumstances described in the Merger Agreement. The failure to complete the Merger also may result in negative publicity and negatively affect our relationship with our stockholders, employees, collaborators, distributors, vendors, suppliers, regulators, and other business partners. We may also be required to devote significant time and resources to litigation related to any failure to complete the Merger or related to any enforcement proceeding commenced against us to perform our obligations under the Merger Agreement.
    27

    Table of Contents

    The announcement and pendency of the transaction with Parent could adversely affect our business, financial condition, and/or operating results.

    Our efforts to complete the Merger could cause substantial disruptions in, and create uncertainty surrounding, our business, which may materially adversely affect our results of operation and our business. Uncertainty as to whether the Merger will be completed may affect our ability to recruit prospective employees or to retain and motivate existing employees and, while the Merger is pending, such existing or prospective employees could experience uncertainty about their future with the Company. A substantial amount of our management’s and employees’ attention is being directed toward the completion of the Merger and thus is being diverted from our day-to-day operations. Uncertainty as to our future could adversely affect our business and our relationship with collaborators, distributors, vendors, suppliers, regulators and other business partners. For example, vendors, suppliers, collaborators, distributors, and other counterparties may react unfavorably, including by delaying or deferring decisions concerning their business relationships or transactions with us, or seeking to change or terminate their existing business relationships with us. Changes to or termination of existing business relationships could adversely affect our results of operations and financial condition, as well as the market price of our common stock. The adverse effects of the pendency of the Merger could be exacerbated by any delays in completion of the Merger or termination of the Merger Agreement.

    While the Merger Agreement is in effect, we are subject to restrictions on our business activities.

    While the Merger Agreement is in effect, we are subject to restrictions on our business activities, generally requiring us to conduct our business in the ordinary course, and subjecting us to a variety of specified limitations absent Parent’s prior consent. Outside certain limited exceptions, these limitations include, among other things, restrictions on our ability to acquire other businesses and assets in excess of a specified limit, dispose of our assets, make investments, enter into certain contracts, repurchase or issue securities, pay dividends, incur capital expenditures in excess of a specified limit, take certain actions relating to intellectual property, amend our organizational documents, and incur indebtedness. These restrictions could prevent us from pursuing strategic business opportunities, taking actions with respect to our business that we may consider advantageous and responding effectively and/or timely to competitive pressures and industry developments, and we may have to forgo certain opportunities we might otherwise pursue, and may as a result materially and adversely affect our business, results of operations and financial condition.

    In certain instances, the Merger Agreement requires us to pay a termination fee to Parent, which could require us to use available cash that would have otherwise been available for general corporate purposes.

    Under the terms of the Merger Agreement, we may be required to pay Parent a termination fee of $145.6 million if the Merger Agreement is terminated under specific circumstances described in the Merger Agreement. If the Merger Agreement is terminated under such circumstances, the termination fee we may be required to pay under the Merger Agreement may require us to use available cash that would have otherwise been available for general corporate purposes and other uses. For these and other reasons, termination of the Merger Agreement could materially and adversely affect our business operations and financial condition, which in turn would materially and adversely affect the price of our common stock.

    We have incurred, and will continue to incur, direct and indirect costs as a result of the pending Merger.

    We have incurred, and will continue to incur, significant costs and expenses, including fees for professional services and other transaction costs, in connection with the pending Merger. We must pay a material portion of these costs and expenses whether or not the Merger is completed. There are a number of factors beyond our control that could affect the total amount or the timing of these costs and expenses, any of which could materially and adversely affect our business, prospects, financial condition, and results of operations.

    Lawsuits may be filed against us and the members of our board of directors arising out of the proposed Merger, which may delay or prevent the proposed Merger.

    Complaints may in the future be filed against us, our board of directors, Parent, any of Parent’s boards of directors and/or others in connection with the transactions contemplated by the Merger Agreement. The outcome of litigation is uncertain, including the amount of costs associated with defending these claims or any other liabilities that may be incurred in connection with the litigation of these claims, and we may not be successful in defending against any such future claims. Lawsuits that may be filed against us, our board of directors, Parent, or any of Parent’s boards of directors could delay or prevent the consummation of the Merger, result in significant costs, and divert the attention of our management and employees from our day-to-day business which could affect our operations and otherwise adversely affect us financially.
    28

    Table of Contents
    Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
    None.
    Item 3. Defaults Upon Senior Securities
    None.
    Item 4. Mine Safety Disclosures
    None.
    Item 5. Other Information
    Rule 10b5-1 Trading Plans
    During the three months ended March 31, 2025, none of the Company’s directors or officers adopted, materially modified, or terminated any contract, instruction, or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any non-Rule 10b5-1 trading arrangement.
    Item 6. Exhibits
    29

    Table of Contents
    EXHIBIT INDEX
    Exhibit
    Number
    Description
    3.1
    Amended and Restated Certificate of Incorporation, as amended, of the Registrant, as currently in effect. (Incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on September 17, 2019).
    3.2
    Bylaws of the Registrant, as currently in effect. (Incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on September 17, 2019).
    3.3
    Amendment to Bylaws of the Registrant (Incorporated by reference to Exhibit 3.1 to the Registrants’ Current Report on Form 8-K filed with the Securities and Exchange Commission on May 27, 2020).
    4.1
    Specimen Stock Certificate evidencing shares of common stock (Incorporated by reference to Exhibit 4.1 to the Registrant’s Registration Statement on Form S 1/A (File No. 333 233351) filed with the Securities and Exchange Commission on September 12, 2019).
    4.2
    Amended and Restated Investors' Rights Agreement among the Registrant and certain of its stockholders, dated August 30, 2019 (Incorporated by reference to Exhibit 4.2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-233351) filed with the Securities and Exchange Commission on September 12, 2019).
    4.3
    Amended Description of the Registrant’s Securities (Incorporated by reference to Exhibit 4.3 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2023, filed February 27, 2024.)
    4.4
    Amendment to the Amended and Restated Investors’ Rights Agreement, dated as of February 25, 2021 (Incorporated by Reference to Exhibit 4.4 to the Registrant's Annual Report on Form 10-K filed with the Securities and Exchanges Commission on February 25, 2021).
    4.5*
    Agreement and Plan of Merger, dated as of April 27, 2025, by and among SpringWorks Therapeutics, Inc., Merck KGaA, Darmstadt, Germany, and EMD Holdings Merger Sub, Inc. (Incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on April 28, 2025).
    10.1**
    Fifth Amended and Restated Non-Employee Director Compensation Policy.
    31.1**
    Certification of Principal Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
    31.2**
    Certification of Principal Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
    32.1†
    Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
    32.2†
    Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
    101.INSInline XBRL Instance Document.
    101.SCHInline XBRL Taxonomy Extension Schema Document.
    101.CALInline XBRL Taxonomy Calculation Linkbase Document.
    101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.
    101.LABInline XBRL Taxonomy Extension Label Linkbase Document.
    101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.
    104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)
    _____________________________________________
    *Schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company hereby agrees to furnish supplementally a copy of any omitted schedule to the Securities and Exchange Commission upon request.
    **Filed herewith.
    †This certification will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, except to the extent specifically incorporated by reference into such filing.
    30

    Table of Contents
    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.
    SPRINGWORKS THERAPEUTICS, INC.
    Date: May 9, 2025By:/s/ Saqib Islam
    Saqib Islam
    Chief Executive Officer
    Date: May 9, 2025By:/s/ Francis I. Perier, Jr.
    Francis I. Perier, Jr.
    Chief Financial Officer
    31
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