• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
PublishGo to App
    Quantisnow Logo

    © 2026 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    SEC Form S-3 filed by Verastem Inc.

    3/20/25 5:00:25 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $VSTM alert in real time by email
    S-3 1 tm259679-1_s3.htm S-3 tm259679-1_s3 - none - 3.0937541s
    TABLE OF CONTENTS
    As filed with the Securities and Exchange Commission on March 20, 2025
    Registration No. 333-            ​
    ​
    ​
    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549
    ​
    FORM S-3
    REGISTRATION STATEMENT
    UNDER
    THE SECURITIES ACT OF 1933
    ​
    VERASTEM, INC.
    (Exact name of registrant as specified in its charter)​
    ​
    Delaware
    ​ ​
    27-3269467
    ​
    ​
    (State or other jurisdiction
    of incorporation or organization)
    ​ ​
    (I.R.S. Employer
    Identification No.)
    ​
    117 Kendrick Street, Suite 500
    Needham, Massachusetts 02494
    (781) 292-4200
    (Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)​
    ​
    Daniel W. Paterson
    Chief Executive Officer
    Verastem, Inc.
    117 Kendrick Street, Suite 500
    Needham, Massachusetts 02494
    (781) 292-4200
    (Name, address including zip code, and telephone number, including area code, of agent for service)​
    With copies to:
    Marko Zatylny
    Thomas Danielski
    Ropes & Gray LLP
    Prudential Tower
    800 Boylston St.
    Boston, Massachusetts 02199
    (617) 951-7000
    From time to time after the effectiveness of the registration statement.
    (Approximate date of commencement of proposed sale to the public)
    If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box.  ☐
    If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒
    If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
    If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
    If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐
    If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐
    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 filer
    ☐
    ​
    ​ ​
    Accelerated 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 7(a)(2)(B) of Securities Act. ☐
    The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act, or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.
    ​
    ​

    TABLE OF CONTENTS
    The information in this prospectus is not complete and may be changed. The selling stockholders may not sell these securities or accept an offer to buy these securities until the Securities and Exchange Commission declares the registration statement effective. This prospectus is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.
    SUBJECT TO COMPLETION, DATED MARCH 20, 2025
    PRELIMINARY PROSPECTUS
    VERASTEM, INC.
    Up to 1,416,939 Shares of Common Stock
    ​
    This prospectus relates to the resale or other disposition from time to time of up to 1,416,939 shares of our common stock par value $0.0001 per share (the “Common Stock”) by the selling stockholders identified in this prospectus, including their transferees, pledgees, donees or successors.
    The selling stockholders may, from time to time, sell, transfer, distribute or otherwise dispose of any or all of their securities from time to time on any stock exchange, market, or trading facility on which the securities are traded or in private transactions. These dispositions may be at fixed prices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, at varying prices determined at the time of sale, or at negotiated prices. See “Plan of Distribution” which begins on page 9.
    We are not offering any securities for sale under this prospectus. We will not receive any of the proceeds from the sale of securities by the selling stockholders. All expenses of registration incurred in connection with this offering are being borne by us. The selling stockholders will bear all discounts and commissions, if any, and expenses incurred by them for brokerage, accounting, tax or legal services or any other expenses incurred in their sale of shares of Common Stock.
    Our Common Stock is listed on the Nasdaq Capital Market under the symbol “VSTM.” On March 19, 2025, the last reported sale price of our Common Stock was $6.98 per share.
    We may amend or supplement this prospectus from time to time by filing amendments or supplements as required. You should read the entire prospectus and any amendments or supplements carefully before you make your investment decision.
    Investing in our securities involves risks. See “Risk Factors” on page 4, and any applicable prospectus supplement, and under similar headings in the other documents that are incorporated by reference into this prospectus.
    Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.
    Prospectus dated      , 2025

    TABLE OF CONTENTS​
     
    TABLE OF CONTENTS
    ​
    ABOUT THIS PROSPECTUS
    ​ ​ ​ ​ 1 ​ ​
    ​
    ABOUT THE COMPANY
    ​ ​ ​ ​ 2 ​ ​
    ​
    RISK FACTORS
    ​ ​ ​ ​ 4 ​ ​
    ​
    DESCRIPTION OF PRIVATE PLACEMENT
    ​ ​ ​ ​ 5 ​ ​
    ​
    DESCRIPTION OF CAPITAL STOCK
    ​ ​ ​ ​ 5 ​ ​
    ​
    DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS
    ​ ​ ​ ​ 6 ​ ​
    ​
    USE OF PROCEEDS
    ​ ​ ​ ​ 7 ​ ​
    ​
    SELLING STOCKHOLDERS
    ​ ​ ​ ​ 8 ​ ​
    ​
    PLAN OF DISTRIBUTION
    ​ ​ ​ ​ 10 ​ ​
    ​
    LEGAL MATTERS
    ​ ​ ​ ​ 13 ​ ​
    ​ EXPERTS ​ ​ ​ ​ 13 ​ ​
    ​
    WHERE YOU CAN FIND MORE INFORMATION
    ​ ​ ​ ​ 13 ​ ​
    ​
    INCORPORATION OF DOCUMENTS BY REFERENCE
    ​ ​ ​ ​ 13 ​ ​
     
    i

    TABLE OF CONTENTS​
     
    ABOUT THIS PROSPECTUS
    This prospectus is part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission (the “SEC”) using a “shelf” registration or continuous offering process.
    You should read this prospectus and the information and documents incorporated by reference carefully. Such documents contain important information you should consider when making your investment decision. See “Where You Can Find More Information” and “Incorporation of Documents by Reference” in this prospectus.
    This prospectus may be supplemented from time to time to add, to update or change information in this prospectus. Any statement contained in this prospectus will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in such prospectus supplement modifies or supersedes such statement. Any statement so modified will be deemed to constitute a part of this prospectus only as so modified, and any statement so superseded will be deemed not to constitute a part of this prospectus. You should rely only on the information contained or incorporated by reference in this prospectus, any applicable prospectus supplement or any related free writing prospectus. We have not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus. This prospectus is not an offer to sell securities, and it is not soliciting an offer to buy securities, in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus or any prospectus supplement, as well as information we have filed with the SEC that is incorporated by reference, is accurate as of the date on the front of those documents only, regardless of the time of delivery of this prospectus or any applicable prospectus supplement, or any sale of a security. Our business, financial condition, results of operations and prospects may have changed since those dates.
    This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under “Where You Can Find More Information.”
    Unless otherwise stated or the context requires otherwise, references in this prospectus to “Verastem,” the “company” or the “Company,” “we,” “us,” or “our” refer to Verastem, Inc. and our subsidiaries on a consolidated basis, as appropriate, unless the context otherwise requires.
     
    1

    TABLE OF CONTENTS​
     
    ABOUT THE COMPANY
    Company Overview
    We are a late-stage development biopharmaceutical company committed to the development and commercialization of new medicines to improve the lives of patients diagnosed with ras sarcoma (“RAS”)/ mitogen activated pathway kinase (“MAPK”) pathway-driven cancers. Our pipeline is focused on novel small molecule drugs that inhibit critical signaling pathways in cancer that promote cancer cell survival and tumor growth, including rapidly accelerated fibrosarcoma (“RAF”)/ mitogen-activated protein kinase kinase (“MEK”) inhibition, focal adhesion kinase (“FAK”) inhibition and Kirsten rat sarcoma viral oncogene homolog (“KRAS”) G12D inhibition.
    Our most advanced product candidates, avutometinib (RAF/ MEK program) and defactinib (FAK program), are being investigated in both preclinical and clinical studies for the treatment of various solid tumors, including, but not limited to low-grade serous ovarian cancer (“LGSOC”), non-small cell lung cancer and pancreatic cancer. We believe that avutometinib may be beneficial as a therapeutic, both as a single agent or when used together in combination with defactinib, other agents, other pathway inhibitors, or other current and emerging standard of care treatments in cancers that do not adequately respond to currently available therapies.
    Avutometinib is an oral RAF/MEK clamp that inhibits MEK1/2 kinase activities and induces inactive complexes of MEK with A-Raf proto-oncogene, serine/threonine kinase, B-Raf proto-oncogene serine/​threonine kinase and C-raf proto-oncogene serine/threonine kinase, potentially creating a more complete and durable anti-tumor response through maximal RAS/MAPK pathway inhibition. In contrast to currently available MEK-only inhibitors, avutometinib blocks both MEK kinase activity and the ability of RAF to phosphorylate MEK. We believe that this unique mechanism allows avutometinib to block MEK signaling without the compensatory activation of MEK that appears to limit the response achieved with the MEK-only inhibitors.
    Defactinib is an oral, selective inhibitor of FAK and proline-rich tyrosine kinase (“PYK2”), the two members of the focal adhesion kinase family of non-receptor protein tyrosine kinases. FAK and PYK2 integrate signals from integrin and growth factor receptors to regulate cell proliferation, survival, migration, and invasion. FAK activation has been shown to mediate resistance to multiple anti-cancer agents, including RAF and MEK inhibitors.
    The combination of avutometinib and defactinib is clinically active in patients with KRAS mutant (“KRAS mt”) and KRAS wild-type recurrent LGSOC and has received breakthrough designation from the United States Food and Drug Administration (the “FDA”) for the treatment of all patients with recurrent LGSOC, regardless of KRAS status, after one or more prior lines of therapy including platinum-based chemotherapy. Avutometinib, alone or in combination with defactinib, has received orphan drug designation for the treatment of all patients with LGSOC in the United States. Defactinib has received orphan drug designation in ovarian cancer in the United States, the European Union, and Australia. In addition, the FDA granted orphan drug designation to avutometinib, in combination with defactinib, for the treatment of pancreatic cancer.
    On October 31, 2024, we completed our rolling New Drug Application (“NDA”) to the FDA for avutometinib and defactinib for treatment of adults with recurrent KRAS mt LGSOC who received at least one prior systemic therapy. On December 30, 2024, the FDA accepted for review our NDA under the accelerated approval pathway and granted priority review for avutometinib and defactinib for treatment of adult patients with recurrent KRAS mt LGSOC who received at least one prior systemic therapy and designated June 30, 2025 as the Prescription Drug User Fee Act action date. In addition, at the time the FDA accepted our NDA for review, the FDA stated that it is not planning to hold an advisory committee meeting to discuss the application. The NDA was based on the positive, mature safety and efficacy data from the RAMP 201 trial as presented at the IGCS 2024 Annual Meeting. The NDA also includes supportive data from the FRAME Phase 1 trial, the first study conducted with the combination therapy in recurrent LGSOC. We intend to initiate discussions with other global regulatory authorities, including those in Europe and Japan, with the objective of ultimately seeking approval for the combination in additional regions.
     
    2

    TABLE OF CONTENTS
     
    Our principal executive offices are located at 117 Kendrick Street, Suite 500, Needham, MA 02494, and our telephone number is (781) 292-4200. Our website address is: www.verastem.com. We have included our website address as a factual reference and do not intend it to be an active link to our website. The information that can be accessed through our website is not part of this prospectus, and investors should not rely on any such information in deciding whether to purchase our common stock.
     
    3

    TABLE OF CONTENTS​
     
    RISK FACTORS
    An investment in our Common Stock involves risks. Prior to making a decision about investing in our Common Stock, you should consider carefully the risks together with all of the other information contained or incorporated by reference in this prospectus, including any risks described in the section entitled “Risk Factors” contained in any supplements to this prospectus, in our Annual Report on Form 10-K for the year ended December 31, 2024, and in our subsequent filings with the SEC. Each of the referenced risks and uncertainties could adversely affect our business, prospects, operating results and financial condition, as well as adversely affect the value of an investment in our securities. Additional risks not known to us or that we believe are immaterial may also adversely affect our business, operating results and financial condition and the value of an investment in our securities.
     
    4

    TABLE OF CONTENTS​​
     
    DESCRIPTION OF PRIVATE PLACEMENT
    On January 13, 2025, the Company entered into a stock purchase agreement (the “Purchase Agreement”) with the selling stockholders named in this prospectus, pursuant to which the Company sold to the selling stockholders an aggregate of 1,416,939 shares of Common Stock at a purchase price of $5.2931 per share, for gross proceeds of approximately $7.5 million, in a private placement (the “Private Placement”).
    In connection with the Private Placement and pursuant to the Purchase Agreement, the Company granted the selling stockholders certain registration rights for the resale of the shares of the Common Stock. The Company agreed to file a registration statement registering such shares with the SEC no later than May 15, 2025. The Company agreed to keep the registration statement continuously effective from the date on which the SEC declares the registration statement effective until the earlier of (a) the date as of which the registrable shares (as defined in the Purchase Agreement) have been sold pursuant to the registration statement, (b) the date as of which no registrable shares remain outstanding or (c) the closing of a corporate reorganization.
    Additionally, pursuant to the Purchase Agreement, the Company granted to the selling stockholders a right to participate in any equity offerings consummated by the Company in an amount up to $2.5 million for a period of three years following closing, subject to certain limitations and exclusions set out in the Purchase Agreement.
    DESCRIPTION OF CAPITAL STOCK
    The description of our Common Stock and our preferred stock is incorporated by reference to Exhibit 4.2 of our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on March 20, 2025.
     
    5

    TABLE OF CONTENTS​
     
    DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS
    This prospectus, any prospectus supplement and the other documents we have filed with the SEC that are incorporated herein by reference, contain forward-looking statements. . These forward-looking statements generally can be identified by the use of words such as “anticipate,” “expect,” “plan,” “could,” “may,” “will,” “believe,” “estimate,” “forecast,” “goal,” “potentially,” “project,” and other words of similar meaning. All statements, other than statements related to present facts or current conditions or historical facts, contained in or incorporated by reference into this prospectus, are forward-looking statements, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management. Such statements address various matters about, among other things: the development and activity of our programs and product candidates, avutometinib and defactinib; the timing and outcome of the FDA review of our NDA submission for the avutometinib and defactinib combination in low-grade serous ovarian cancer (“LGSOC”); the structure and potential clinical value of our planned and pending clinical trials, including the RAMP 201, RAMP 205 and RAMP 301 trials; the timing of commencing and completing trials, including topline data reports; our interactions with regulators; the timeline and indications for clinical development, regulatory submissions and the potential for and timing of commercialization of our product candidates; the potential for additional development programs involving the Company’s lead compound and the potential market opportunities thereof; the expected outcome and benefits of our collaboration with GenFleet Therapeutics (Shanghai), Inc. (“GenFleet”); and the estimated addressable markets for, and anticipated market opportunities of our drug candidates.
    Each forward-looking statement is subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied in such statement. Applicable risks and uncertainties include the risks and uncertainties, among other things, regarding: the success in the development and potential commercialization of our product candidates, including avutometinib in combination with other compounds, including defactinib, LUMAKRAS® and others; the uncertainties inherent in research and development, such as negative or unexpected results of clinical trials; the occurrence or timing of applications for our product candidates that may be filed with regulatory authorities in any jurisdictions; whether and when regulatory authorities in any jurisdictions may approve any such applications that may be filed for our product candidates and, if approved, whether our product candidates will be commercially successful in such jurisdictions; our ability to obtain, maintain and enforce patent and other intellectual property protection for our product candidates; risks associated with preliminary and interim data, which may not be representative of more mature data, including with respect to interim duration of therapy data; that the development and commercialization of our product candidates will take longer or cost more than planned, including as a result of conducting additional studies or our decisions regarding execution of such commercialization; that we may not have sufficient cash to fund our contemplated operations, including certain of our product development programs; that we will not see a return on investment on the payments we have and may continue to make pursuant to the collaboration and option agreement with GenFleet or that GenFleet will fail to fully perform under the agreement; that we may not be able to establish new or expand on existing collaborations or partnerships, including with respect to in-licensing of our product candidates, on favorable terms, or at all; that we may be unable to obtain adequate financing in the future through product licensing; and that our product candidates will not receive regulatory approval, become commercially successful products, or result in new treatment options being offered to patients. Other risks and uncertainties include those identified under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on March 20, 2025, and in any subsequent filings with the SEC. See “Where You Can Find More Information.”
    As a result of these and other factors, we may not achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. The forward-looking statements contained in this prospectus reflect our views as of the date hereof. We do not assume and specifically disclaim any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. Our business is subject to substantial risks and uncertainties, including those referenced above. Investors, potential investors, and others should give careful consideration to these risks and uncertainties.
     
    6

    TABLE OF CONTENTS​
     
    USE OF PROCEEDS
    All of the shares of Common Stock offered by the selling stockholders pursuant to this prospectus will be sold by the selling stockholders for their respective accounts. We will not receive any of the proceeds from these sales.
    The selling stockholders will bear all discounts and commissions, if any, and expenses incurred by them for brokerage, accounting, tax or legal services or any other expenses incurred in disposing of the securities. We will bear the costs, fees and expenses incurred in effecting the registration of the shares covered by this prospectus, including all registration and filing fees, Nasdaq listing fees and fees and expenses of our counsel and our independent registered public accounting firm.
     
    7

    TABLE OF CONTENTS​
     
    SELLING STOCKHOLDERS
    Pursuant to the Purchase Agreement, we agreed to file the registration statement, of which this prospectus is a part, to cover the resale of the shares of Common Stock, which the selling stockholders acquired pursuant to the Purchase Agreement, and to keep such registration statement effective with respect to each selling stockholder until the date on which all of the shares of Common Stock registered for resale under the registration statement have been disposed of in accordance with such registration statement, disposed of pursuant to Rule 144 under the Securities Act, disposed of in certain corporate reorganizations, or can be resold pursuant to Rule 144 without restriction or limitation (including without any limitation as to volume of sales and without the selling stockholder complying with any method of sale requirements or notice requirements under Rule 144).
    We are registering the resale of the above-referenced securities to permit each of the selling stockholders identified below, or their permitted transferees or other successors-in-interest that may be identified in a supplement to this prospectus or, if required, a post-effective amendment to the registration statement, of which this prospectus is a part, to resell or otherwise dispose of the securities in the manner contemplated under “Plan of Distribution” in this prospectus (as may be supplemented and amended). This prospectus covers the sale or other disposition by the selling stockholders of up to the total number of shares of Common Stock that were issued to the selling stockholders in the Private Placement. Throughout this prospectus, when we refer to the securities being registered on behalf of the selling stockholders, we are referring to the shares of Common Stock issued in the Private Placement pursuant to the Purchase Agreement. When we refer to “selling stockholders” in this prospectus, we mean those persons listed in the table below, as well as their permitted transferees, pledgees or donees or other successors-in-interest that may be identified in a supplement to this prospectus or, if required, a post-effective amendment to the registration statement, of which this prospectus is a part.
    The selling stockholders may sell some, all or none of their securities. We do not know how long the selling stockholders will hold the securities before selling them, and we currently have no agreements, arrangements or understandings with the selling stockholders regarding the sale or other disposition of any of the securities. The securities covered hereby may be offered from time to time by the selling stockholders.
    The information regarding securities beneficially owned after the offering assumes the sale of all securities offered by the selling stockholders. To our knowledge, subject to community property laws where applicable, each selling stockholder named in the table has sole voting and investment power with respect to the securities set forth opposite such selling stockholder’s name.
    The following table sets forth the name of each selling stockholder, the number of shares of our Common Stock beneficially owned by the selling stockholders as of March 20, 2025, the number of shares of our Common Stock that may be offered under this prospectus, and the number and percentage of our Common Stock beneficially owned by the selling stockholders assuming all of the shares of our Common Stock registered hereunder are sold. As of March 19, 2025, a total of 51,486,705 shares of our Common Stock were outstanding. Beneficial ownership is determined in accordance with the rules of the SEC and includes voting or investment power with respect to our Common Stock. Generally, a person “beneficially owns” securities if the person has or shares with others the right to vote those securities or to dispose of them, or if the person has the right to acquire voting or disposition rights within 60 days. The number of shares of our Common Stock in the column “Number of Shares of Common Stock Offered” represents all of the shares of our Common Stock that a selling stockholder may offer and sell from time to time under this prospectus.
     
    8

    TABLE OF CONTENTS
     
    Name and Address
    ​ ​
    Number of
    Shares of
    Common Stock
    Beneficially
    Owned Prior to
    Offering
    ​ ​
    Percentage of
    Shares of
    Common Stock
    Beneficially
    Owned Prior to
    Offering
    ​ ​
    Number of
    Shares of
    Common Stock
    Offered
    ​ ​
    Number of
    Shares of
    Common Stock
    Beneficially
    Owned
    After Offering
    ​ ​
    Percentage of
    Shares of
    Common Stock
    Beneficially
    Owned
    After Offering
    ​
    Entities affiliated with Oberland Capital Management LLC(1)
    ​ ​ ​ ​ 1,416,939(1) ​ ​ ​ ​ ​ 2.75% ​ ​ ​ ​ ​ 1,416,939 ​ ​ ​ ​ ​ — ​ ​ ​ ​ ​ — ​ ​
    ​
    (1)
    Consists of: (i) 921,010 shares of Common Stock held by TPC Investments Solutions LP; and (ii) 495,929 shares of Common Stock held by TPC Investments Solutions Co-Invest LP. Oberland Capital Management LLC, as the investment manager of each of TPC Investments Solutions LP and TPC Investments Solutions Co-Invest LP, has voting and investment power over these securities. The address of Oberland Capital Management LLC is 1700 Broadway, 37th Floor, New York, New York 10019.
    ​
     
    9

    TABLE OF CONTENTS​
     
    PLAN OF DISTRIBUTION
    The selling stockholders, which as used herein includes donees, pledgees, transferees or other successors- in-interest selling shares of Common Stock previously issued or interests in shares of Common Stock received after the date of this prospectus from a selling stockholder as a gift, pledge, partnership distribution or other transfer, may, from time to time, sell, transfer or otherwise dispose of any or all of their shares of Common Stock or interests in shares of Common Stock on any stock exchange, market or trading facility on which the shares are traded or in private transactions. The selling stockholders may sell their shares of Common Stock pursuant to this prospectus at fixed prices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, at varying prices determined at the time of sale, or at negotiated prices.
    The selling stockholders may use any one or more of the following methods when disposing of shares or interests therein:
    •
    ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers;
    ​
    •
    block trades in which the broker-dealer will attempt to sell the shares as agent, but may position and resell a portion of the block as principal to facilitate the transaction;
    ​
    •
    purchases by a broker-dealer as principal and resale by the broker-dealer for its account;
    ​
    •
    an exchange distribution in accordance with the rules of the applicable exchange;
    ​
    •
    privately negotiated transactions;
    ​
    •
    short sales effected after the date the registration statement of which this prospectus is a part is declared effective by the SEC;
    ​
    •
    through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise;
    ​
    •
    through trading plans entered into by a selling stockholder pursuant to Rule 10b5-1 under the Exchange Act, that are in place at the time of an offering pursuant to this prospectus and any applicable prospectus supplement hereto that provide for periodic sales of their securities on the basis of parameters described in such trading plans;
    ​
    •
    to or through underwriters, agents or broker-dealers;
    ​
    •
    broker-dealers may agree with the selling stockholders to sell a specified number of such shares at a stipulated price per share;
    ​
    •
    a combination of any such methods of sale; and
    ​
    •
    any other method permitted by applicable law.
    ​
    If the selling stockholders effect such transactions by selling shares of Common Stock to or through underwriters, broker-dealers or agents, such underwriters, broker-dealers or agents may receive commissions in the form of discounts, concessions or commissions from the selling stockholders or commissions from purchasers of the shares of Common Stock for whom they may act as agent or to whom they may sell as principal (which discounts, concessions or commissions as to particular underwriters, broker-dealers or agents may be in excess of those customary in the types of transactions involved).
    Broker-dealers engaged by the selling stockholders may arrange for other brokers-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the selling stockholders (or, if any broker-dealer acts as agent for the purchaser of securities, from the purchaser) in amounts to be negotiated.
    The selling stockholders may, from time to time, pledge or grant a security interest in some or all of the shares of Common Stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of Common Stock, from time to time, under this prospectus, or under an amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer
     
    10

    TABLE OF CONTENTS
     
    the shares of Common Stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.
    In connection with the shares of Common Stock or interests therein, the selling stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of our Common Stock in the course of hedging the positions they assume. The selling stockholders may also sell shares of our Common Stock short and deliver these securities to close out their short positions, or loan or pledge shares of our Common Stock to broker-dealers that in turn may sell these securities. The selling stockholders may also enter into option or other transactions with broker-dealers or other financial institutions or the creation of one or more derivative securities which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus, which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction).
    The aggregate proceeds to the selling stockholders from the sale of the shares of Common Stock offered by them will be the purchase price of the shares of Common Stock less discounts or commissions, if any. Each of the selling stockholders reserves the right to accept and, together with their agents from time to time, to reject, in whole or in part, any proposed purchase of Common Stock to be made directly or through agents. We will not receive any of the proceeds from this offering.
    The selling stockholders also may resell all or a portion of the shares of Common Stock in open market transactions in reliance upon Rule 144 under the Securities Act, provided that they meet the criteria and conform to the requirements of that rule. In addition, the selling stockholders may transfer the shares of Common Stock by other means not described in this prospectus.
    The selling stockholders and any underwriters, broker-dealers or agents that participate in the sale of the shares of Common Stock or interests therein may be “underwriters” within the meaning of Section 2(11) of the Securities Act. Any discounts, commissions, concessions or profit they earn on any resale of the shares may be underwriting discounts and commissions under the Securities Act. Selling stockholders who are “underwriters” within the meaning of Section 2(11) of the Securities Act will be subject to the prospectus delivery requirements of the Securities Act.
    To the extent required, the shares of Common Stock to be sold, the names of the selling stockholders, the respective purchase prices and public offering prices, the names of any agents, dealer or underwriter, any applicable commissions or discounts with respect to a particular offer will be set forth in an accompanying prospectus supplement or, if appropriate, a post-effective amendment to the registration statement that includes this prospectus.
    In order to comply with the securities laws of some states, if applicable, the shares of Common Stock may be sold in these jurisdictions only through registered or licensed brokers or dealers. In addition, in some states the shares of Common Stock may not be sold unless it has been registered or qualified for sale or an exemption from registration or qualification requirements is available and is complied with.
    We have advised the selling stockholders that the anti-manipulation rules of Regulation M under the Exchange Act may apply to sales of shares in the market and to the activities of the selling stockholders and their affiliates. In addition, to the extent applicable we will make copies of this prospectus (as it may be supplemented or amended from time to time) available to the selling stockholders for the purpose of satisfying the prospectus delivery requirements of the Securities Act. The selling stockholders may indemnify any broker-dealer that participates in transactions involving the sale of the shares against certain liabilities, including liabilities arising under the Securities Act.
    Once sold under the registration statement of which this prospectus forms a part, the shares of Common Stock will be freely tradable in the hands of persons other than our affiliates.
    We have agreed to indemnify the selling stockholders against liabilities, including liabilities under the Securities Act and state securities laws, relating to the registration of the shares offered by this prospectus.
    We will pay all expenses of the registration of the shares of Common Stock, including, without limitation, SEC filing fees. We have agreed with the selling stockholders to keep the registration statement
     
    11

    TABLE OF CONTENTS
     
    of which this prospectus constitutes a part effective until such time as the shares offered by the selling stockholders have been effectively registered under the Securities Act and disposed of in accordance with such registration statement, the shares offered by the selling stockholders have been disposed of pursuant to Rule 144 under the Securities Act, the shares offered by the selling stockholders may be resold pursuant to Rule 144 without restriction or limitation (including without any limitation as to volume of sales and without the selling stockholder complying with any method of sale requirements or notice requirements under Rule 144), or the closing of certain corporate reorganizations.
     
    12

    TABLE OF CONTENTS​​​​
     
    LEGAL MATTERS
    The validity of the issuance of the securities offered hereby will be passed upon for us by Ropes & Gray LLP, Boston, Massachusetts.
    EXPERTS
    The consolidated financial statements of Verastem, Inc. appearing in Verastem, Inc.’s Annual Report (Form 10-K) for the year ended December 31, 2024 have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report therein, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.
    WHERE YOU CAN FIND MORE INFORMATION
    This prospectus is part of a registration statement we filed with the SEC. This prospectus does not contain all of the information set forth in the registration statement and the exhibits to the registration statement. For further information with respect to us and the shares of Common Stock being offered under this prospectus, we refer you to the registration statement and the exhibits and schedules filed as a part of the registration statement. Neither we nor any agent, underwriter or dealer has authorized any person to provide you with different information. We are not making an offer of Common Stock in any state where the offer is not permitted. You should not assume that the information in this prospectus is accurate as of any date other than the date on the front page of this prospectus, regardless of the time of delivery of this prospectus or any sale of Common Stock offered by this prospectus.
    We file annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains a website that contains reports, proxy statements and other information regarding issuers that file electronically with the SEC, including us. The address of the SEC website is www.sec.gov.
    We maintain a website at www.verastem.com. Information contained in, or accessible through, our website is not a part of, and is not incorporated into, this prospectus, and you should not consider it part of this prospectus.
    INCORPORATION OF DOCUMENTS BY REFERENCE
    The SEC allows us to “incorporate by reference” into this prospectus the information we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus, and information in documents that we file later with the SEC will automatically update and supersede information in this prospectus. We incorporate by reference into this prospectus the documents listed below and any future filings, including all filings made after the date of the filing of the registration statement of which this prospectus is a part and prior to the effectiveness of such registration statement, made by us with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, except for information “furnished” under Items 2.02, 7.01 or 9.01 on Form 8-K or other information “furnished” to the SEC which is not deemed filed and not incorporated in this prospectus, until the termination of the offering of securities described in the applicable prospectus supplement. We hereby incorporate by reference the following documents:
    •
    our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on March 20, 2025;
    ​
    •
    our Current Reports on Form 8-K filed with the SEC on January 13, 2025, January 21, 2025 and January 23, 2025; and
    ​
    •
    the description of our Common Stock, which is contained in the Registration Statement on Form 8-A, as filed with the SEC on January 23, 2012, as supplemented by the description of our Common Stock and preferred stock contained in Exhibit 4.2 to our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on March 20, 2025.
    ​
    Any statement contained in a document incorporated or deemed to be incorporated by reference in this prospectus will be deemed modified, superseded or replaced for purposes of this prospectus to the extent that a statement contained in this prospectus modifies, supersedes or replaces such statement.
     
    13

    TABLE OF CONTENTS
     
    You may request a copy of these filings, at no cost, by writing or telephoning us at the following address:
    Investor Relations
    117 Kendrick Street, Suite 500
    Needham, Massachusetts 02494
    (781) 292-4279
    email address: [email protected]
    Copies of these filings are also available, without charge, on the SEC’s website at www.sec.gov and on our website at www.verastem.com as soon as reasonably practicable after they are filed electronically with the SEC. The information contained on our website is not a part of this prospectus.
     
    14

    TABLE OF CONTENTS
     
    PART II
    INFORMATION NOT REQUIRED IN PROSPECTUS
    Item 14.   Other Expenses of Issuance and Distribution
    The following table sets forth an estimate of the fees and expenses relating to the issuance and distribution of the securities being registered hereby, other than underwriting discounts and commissions, all of which shall be borne by the Registrant. All of such fees and expenses, except for the SEC registration fee, are estimated:
    ​
    SEC registration fee
    ​ ​ ​ $ 1,486 ​ ​
    ​
    Legal fees and expenses
    ​ ​ ​ $ 250,000 ​ ​
    ​
    Accounting fees and expenses
    ​ ​ ​ $ 30,000 ​ ​
    ​
    Miscellaneous fees and expenses
    ​ ​ ​ $ 10,000 ​ ​
    ​
    Total
    ​ ​ ​ $ 291,486 ​ ​
    Item 15.   Indemnification of Directors and Officers.
    Section 102 of the Delaware General Corporation Law permits a corporation to eliminate the personal liability of its directors or its stockholders for monetary damages for a breach of fiduciary duty as a director, except where the director breached his or her duty of loyalty, failed to act in good faith, engaged in intentional misconduct or knowingly violated a law, authorized the payment of a dividend or approved a stock repurchase in violation of Delaware corporate law or obtained an improper personal benefit. Our amended and restated certificate of incorporation provides that no director shall be personally liable to us or our stockholders for monetary damages for any breach of fiduciary duty as a director, notwithstanding any provision of law imposing such liability, except to the extent that the Delaware General Corporation Law prohibits the elimination or limitation of liability of directors for breaches of fiduciary duty.
    Section 145 of the Delaware General Corporation Law provides that a corporation has the power to indemnify a director, officer, employee or agent of the corporation and certain other persons serving at the request of the corporation in related capacities against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlements actually and reasonably incurred by the person in connection with an action, suit or proceeding to which he or she is party or is threatened to be made a party by reason of such position, if such person acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, and, in any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful, except that, in the case of actions brought by or in the right of the corporation, no indemnification shall be made with respect to any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or other adjudicating court determines that, despite the adjudication of liability but in view of all of the circumstances of the case, such person is fairly and reasonably entitled to indemnification for such expenses which the Court of Chancery or such other court shall deem proper.
    Our amended and restated certificate of incorporation provides that we will indemnify each person who was or is a party or threatened to be made a party to any threatened, pending or completed action, suit or proceeding whether civil, criminal, administrative or investigative (other than an action by or in the right of us) by reason of the fact that he or she is or was, or has agreed to become, our director or officer, or is or was serving, or has agreed to serve, at our request as a director, officer, partner, employee or trustee of, or in a similar capacity with, another corporation, partnership, joint venture, trust or other enterprise (all such persons being referred to as an “Indemnitee”), or by reason of any action alleged to have been taken or omitted in such capacity, against all expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding and any appeal therefrom, if such Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, our best interests, and, with respect to any criminal action or proceeding, he or she had no reasonable cause to believe his or her conduct was unlawful.
    Our amended and restated certificate of incorporation also provides that we will indemnify any Indemnitee who was or is a party to an action or suit by or in the right of us to procure a judgment in our
     
    II-1

    TABLE OF CONTENTS
     
    favor by reason of the fact that the Indemnitee is or was, or has agreed to become, our director or officer, or is or was serving, or has agreed to serve, at our request as a director, officer, partner, employee or trustee or, or in a similar capacity with, another corporation, partnership, joint venture, trust or other enterprise, or by reason of any action alleged to have been taken or omitted in such capacity, against all expenses (including attorneys’ fees) and, to the extent permitted by law, amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding, and any appeal therefrom, if the Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, our best interests, except that no indemnification shall be made with respect to any claim, issue or matter as to which such person shall have been adjudged to be liable to us, unless a court determines that, despite such adjudication but in view of all of the circumstances, he or she is entitled to indemnification of such expenses. Notwithstanding the foregoing, to the extent that any Indemnitee has been successful, on the merits or otherwise, he or she will be indemnified by us against all expenses (including attorneys’ fees) actually and reasonably incurred by him or her or on his or her behalf in connection therewith. If we do not assume the defense, expenses must be advanced to an Indemnitee under certain circumstances.
    We have entered into indemnification agreements with our directors. In general, these agreements provide that we will indemnify the director to the fullest extent permitted by law for claims arising in his or her capacity as a director of our Company or in connection with his or her service at our request for another corporation or entity. The indemnification agreements also provide for procedures that will apply in the event that a director makes a claim for indemnification and establish certain presumptions that are favorable to the director.
    We maintain a general liability insurance policy which covers certain liabilities of our directors and officers arising out of claims based on acts or omissions in their capacities as directors or officers.
    Also see “Undertakings.”
    Item 16.   Exhibits.
    ​
    Exhibit
    Number
    ​ ​
    Description of Document
    ​
    ​ 3.1 ​ ​
    Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Annual Report on Form 10-K filed by the Registrant on March 12, 2019)
    ​
    ​ 3.2 ​ ​ Certificate of Amendment to the Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.2 to the Annual Report on Form 10-K filed by the Registrant on March 12, 2019) ​
    ​ 3.3 ​ ​ Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3.4 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333 177677) filed by the Registrant on January 13, 2012) ​
    ​ 3.4 ​ ​ Certificate of Amendment to the Restated Certificate of Incorporation of Verastem, Inc. (incorporated by reference to Exhibit 3.1 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on May 21, 2020) ​
    ​ 3.5 ​ ​ Certificate of Amendment to the Restated Certificate of Incorporation of Verastem, Inc. (incorporated by reference to Exhibit 3.1 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on May 31, 2023) ​
    ​ 3.6 ​ ​ Certificate of Designation of Preferences, Rights and Limitations of Series A Convertible Preferred Stock (incorporated by reference to Exhibit 3.1 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on November 7, 2022) ​
    ​ 3.7 ​ ​ Certificate of Designation of Preferences, Rights and Limitations of Series B Convertible Preferred Stock (incorporated by reference to Exhibit 3.1 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on January 25, 2023) ​
    ​ 4.1 ​ ​ Specimen certificate evidencing shares of common stock (incorporated by reference to Exhibit 4.1 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333 177677) filed by the Registrant on January 13, 2012) ​
     
    II-2

    TABLE OF CONTENTS
     
    ​
    Exhibit
    Number
    ​ ​
    Description of Document
    ​
    ​ 4.2 ​ ​
    Description of Securities (incorporated by reference to Exhibit 4.2 to the Annual Report on Form 10-K filed by the Registrant on March 20, 2025)
    ​
    ​ 4.3 ​ ​ Stock Purchase Agreement, dated January 13, 2025, by and among Verastem, Inc. and each purchaser party thereto (incorporated by reference to Exhibit 10.2 to the form 8-K filed by the Registrant with the Securities and Exchange Commission on January 13, 2025) ​
    ​ 4.4 ​ ​
    Form of Pre-Funded Warrant to Purchase Stock (incorporated by reference to Exhibit 4.1 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on July 25, 2024)
    ​
    ​ 4.5 ​ ​
    Form of Warrant to Purchase Stock (incorporated by reference to Exhibit 4.2 to the Form 8-K filed by the Registrant with the Securities and Exchange Commission on July 25, 2024)
    ​
    ​ 5.1 ​ ​
    Opinion of Ropes & Gray LLP (filed herewith)
    ​
    ​ 23.1 ​ ​
    Consent of Ernst & Young LLP (filed herewith)
    ​
    ​ 23.2 ​ ​
    Consent of Ropes & Gray LLP (included in Exhibit 5.1)
    ​
    ​ 24.1 ​ ​
    Power of Attorney (incorporated by reference to the signature page hereto).
    ​
    ​ 107 ​ ​
    Filing Fee Table (filed herewith)
    ​
    Item 17.   Undertakings.
    The undersigned registrant hereby undertakes:
    (1)   To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
    (i)   To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
    (ii)   To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;
    (iii)   To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
    provided, however, that the undertakings set forth in paragraphs (1)(i), (1)(ii) and (1)(iii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of this registration statement.
    (2)   That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
    (3)   To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
     
    II-3

    TABLE OF CONTENTS
     
    (4)   That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:
    (A)   Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
    (B)   Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.
    (5)   That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser: (i) any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424; (ii) any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant; (iii) the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and (iv) any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.
    (6)   That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
    Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.
     
    II-4

    TABLE OF CONTENTS​
     
    SIGNATURES
    Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Needham, Commonwealth of Massachusetts, on the 20th day of March, 2025.
    VERASTEM, INC.
    By:
    /s/ Daniel W. Paterson
    ​
    ​
    Daniel W. Paterson
    Chief Executive Officer
    (Principal executive officer)
     
    II-5

    TABLE OF CONTENTS
     
    POWER OF ATTORNEY
    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Daniel W. Paterson and Daniel Calkins and each of them, either of whom may act without the joinder of the other, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place, and stead, in any and all capacities, to sign any and all amendments and supplements thereto (including post-effective amendments and registration statements filed pursuant to Rule 462(b)) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or either of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
    Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.
    ​
    Signature
    ​ ​
    Title
    ​ ​
    Date
    ​
    ​
    /s/ Daniel W. Paterson
    ​
    Daniel W. Paterson
    ​ ​ Chief Executive Officer and Director (Principal executive officer) ​ ​
    March 20, 2025
    ​
    ​
    /s/ Daniel Calkins
    ​
    Daniel Calkins
    ​ ​ Chief Financial Officer
    (Principal financial and accounting officer)
    ​ ​
    March 20, 2025
    ​
    ​
    /s/ Michael Kauffman, MD, PH.D.
    ​
    Michael Kauffman, MD, PH.D.
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Paul Bunn, MD
    ​
    Paul Bunn, MD
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Rob Gagnon
    ​
    Rob Gagnon
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Anil Kapur
    ​
    Anil Kapur
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ John Johnson
    ​
    John Johnson
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Michelle Robertson
    ​
    Michelle Robertson
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Eric Rowinsky, MD
    ​
    Eric Rowinsky, MD
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Brian Stuglik
    ​
    Brian Stuglik
    ​ ​ Director ​ ​
    March 20, 2025
    ​
    ​
    /s/ Karin Tollefson
    ​
    Karin Tollefson
    ​ ​ Director ​ ​
    March 20, 2025
    ​
     
    II-6

    Get the next $VSTM alert in real time by email

    Crush Q1 2026 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $VSTM

    DatePrice TargetRatingAnalyst
    2/4/2026$18.00Buy
    H.C. Wainwright
    10/16/2025Overweight
    Cantor Fitzgerald
    4/10/2025$15.00Buy
    Jefferies
    3/24/2025$7.00 → $10.00Buy
    H.C. Wainwright
    12/31/2024$13.00 → $20.00Buy
    BTIG Research
    9/30/2024$13.00Buy
    Guggenheim
    11/21/2023$27.00Buy
    BTIG Research
    9/27/2023$21.00Buy
    B. Riley Securities
    More analyst ratings

    $VSTM
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    President and CEO Paterson Dan sold $6,489 worth of shares (970 units at $6.69), decreasing direct ownership by 0.16% to 612,919 units (SEC Form 4)

    4 - Verastem, Inc. (0001526119) (Issuer)

    2/5/26 4:10:10 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Chief Financial Officer Calkins Daniel was granted 16,665 shares, increasing direct ownership by 16% to 121,384 units (SEC Form 4)

    4 - Verastem, Inc. (0001526119) (Issuer)

    1/23/26 4:58:52 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    President and CEO Paterson Dan was granted 213,785 shares, increasing direct ownership by 53% to 613,889 units (SEC Form 4)

    4 - Verastem, Inc. (0001526119) (Issuer)

    1/23/26 4:57:26 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    SEC Filings

    View All

    Verastem Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Regulation FD Disclosure, Financial Statements and Exhibits

    8-K - Verastem, Inc. (0001526119) (Filer)

    2/4/26 7:30:33 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 144 filed by Verastem Inc.

    144 - Verastem, Inc. (0001526119) (Subject)

    1/14/26 5:15:00 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits

    8-K - Verastem, Inc. (0001526119) (Filer)

    1/8/26 4:16:07 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Insider Purchases

    Insider purchases reveal critical bullish sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Rowinsky Eric K bought $7,680 worth of shares (2,000 units at $3.84) (SEC Form 4)

    4 - Verastem, Inc. (0001526119) (Issuer)

    1/24/24 4:00:39 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    Verastem Oncology Provides Preliminary Fourth Quarter and 2025 Revenue and Business Updates and Outlines 2026 Strategic Priorities for Novel Portfolio Targeting RAS/MAPK Pathway-Driven Cancers

    Based on preliminary, unaudited results, Verastem expects AVMAPKI™ FAKZYNJA™ CO-PACK net product revenues of approximately $17.5 million for the fourth quarter of 2025 and approximately $30.9 million for the full year 2025, following U.S. FDA approval in May 20251 Company plans to continue rapidly advancing clinical development program for VS-7375, a highly selective, oral KRAS G12D (ON/OFF) inhibitor with best-in-class potential, in several advanced KRAS G12D solid tumor indications Company sees preliminary unaudited cash, cash equivalents, and investments of $205 million as of December 31, 2025; pro-forma year-end cash, cash equivalents and investments of $234 million inclusive of net

    2/4/26 7:30:00 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $668B Oncology Surge: 5 Platforms Cracking the Code on GI Tumors

    Issued on behalf of Oncolytics Biotech Inc. USANewsGroup.com News Commentary VANCOUVER, BC, Jan. 30, 2026 /PRNewswire/ -- The global oncology sector is rocketing toward $668 billion in 2034[1], partly fueled by a massive structural pivot toward gastrointestinal cancers where clinical velocity is finally shattering historical benchmarks. With the FDA's 2026 framework explicitly prioritizing accelerated pathways for platforms showing superior objective response rates and durability[2], a select group of innovators is unlocking the immunologically "cold" GI tumors that have baffled researchers for decades. This regulatory tailwind places Oncolytics Biotech Inc. (NASDAQ:ONCY), Pfizer (NYSE:PFE),

    1/30/26 10:19:00 AM ET
    $ONCY
    $PFE
    $RNXT
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Oncology Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)

    Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical company committed to advancing new medicines for patients with RAS/MAPK pathway-driven cancers, today announced the grant of stock options to purchase 73,000 shares of its common stock to eight new employees and the grant of 218,265 restricted stock units to nineteen new employees. The awards were granted pursuant to the Nasdaq inducement grant exception as an inducement material to the employee's acceptance of employment with Verastem Oncology in accordance with Nasdaq Listing Rule 5635(c)(4). The stock options have an exercise price equal to $6.88 per share, the closing price of Verastem Oncology's common stock as reported by Nasdaq on

    1/12/26 4:01:00 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

    View All

    H.C. Wainwright initiated coverage on Verastem with a new price target

    H.C. Wainwright initiated coverage of Verastem with a rating of Buy and set a new price target of $18.00

    2/4/26 8:31:21 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Cantor Fitzgerald resumed coverage on Verastem

    Cantor Fitzgerald resumed coverage of Verastem with a rating of Overweight

    10/16/25 8:50:56 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Jefferies initiated coverage on Verastem with a new price target

    Jefferies initiated coverage of Verastem with a rating of Buy and set a new price target of $15.00

    4/10/25 12:44:18 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    Amendment: SEC Form SC 13G/A filed by Verastem Inc.

    SC 13G/A - Verastem, Inc. (0001526119) (Subject)

    11/14/24 6:25:40 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: SEC Form SC 13G/A filed by Verastem Inc.

    SC 13G/A - Verastem, Inc. (0001526119) (Subject)

    11/14/24 4:38:53 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13G filed by Verastem Inc.

    SC 13G - Verastem, Inc. (0001526119) (Subject)

    11/14/24 4:36:17 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Leadership Updates

    Live Leadership Updates

    View All

    Verastem Oncology Announces Strategic Transition Plan to Accelerate Next Phase of Growth

    John Johnson, current board member, appointed to chairman of the board Michael Kauffman, M.D., Ph.D., lead director since 2016, appointed to president of development Commercial launch progresses as RAMP 301 Phase 3 confirmatory trial in recurrent LGSOC completes additional patient enrollment; topline data anticipated in mid-2027 Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical company committed to advancing new medicines for patients with RAS/MAPK pathway-driven cancers, today announced strategic leadership changes to accelerate its next phase of growth. Michael Kauffman, M.D., Ph.D., currently lead director of the Board, has been appointed as the president of development and will jo

    12/15/25 4:01:00 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Oncology Reports Fourth Quarter and Full Year 2024 Financial Results and Highlights Recent Business Updates

    Avutometinib plus defactinib granted priority review by FDA in December 2024, under the accelerated approval pathway, for KRAS mutant recurrent LGSOC; PDUFA action date set for June 30, 2025 Filed an investigational new drug application in the U.S. for VS-7375, an oral KRAS G12D (ON/OFF) inhibitor RAMP 205 trial in 1L metastatic pancreatic cancer continues to progress with an additional dose cohort added and enrollment across all dose-level cohorts on track to complete in Q1 Company cash, cash equivalents, and investments of $88.8 million as of December 31, 2024; pro forma $151.3 million including debt refinancing and equity issuance with Oberland, and equity issuance under at-the-market

    3/20/25 4:01:00 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Oncology Names Matthew E. Ros as Chief Operating Officer

    New executive leadership supports the company's transition to a fully integrated commercial-stage organization in a year of transformative growth with a potential new product launch in mid-2025. Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical company committed to advancing new medicines for patients with RAS/MAPK pathway-driven cancers, today announced the appointment of Matthew E. Ros as chief operating officer. In his role, Mr. Ros will report to Dan Paterson, president and chief executive officer, and will serve on the company's executive leadership team. "We are thrilled to welcome Matt to Verastem Oncology at an important time as we prepare for a mid-2025 product launch and th

    1/15/25 7:30:00 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $VSTM
    Financials

    Live finance-specific insights

    View All

    Verastem Oncology Reports Third Quarter 2025 Financial Results and Highlights Recent Business Updates

    Achieved AVMAPKI™ FAKZYNJA™ CO-PACK net product revenue of $11.2 million VS-7375 cleared first two monotherapy dose levels with no dose-limiting toxicities reported; no nausea, vomiting or diarrhea greater than Grade 1 were observed Enrollment initiated for VS-7375 in combination with cetuximab in patients with advanced KRAS G12D mutant solid tumors, including colorectal cancer Ended Q3 2025 with $137.7 million in cash and cash equivalents; with expected product revenue and exercise of cash warrants, Company cash runway would extend into the second half of 2026 Company to host a conference call and webcast today at 8:00 a.m. ET Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical compa

    11/4/25 7:30:00 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Oncology to Report Third Quarter 2025 Financial Results on November 4, 2025

    Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical company committed to advancing new medicines for patients with RAS/MAPK pathway-driven cancers, today announced that the Company will host a conference call and webcast to discuss its third quarter 2025 financial results and business updates on Tuesday, November 4, 2025, at 8:00 am ET. To access the conference call, please dial (888) 596-4144 (U.S.) or (646) 968-2525 (international) and enter the passcode 8194537 at least 10 minutes prior to the event start time. A live audio webcast of the call, along with accompanying slides, will be available under "Events & Presentations" in the Investor section of the Company's website, https://inv

    10/23/25 7:30:00 AM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Verastem Oncology Reports Second Quarter 2025 Financial Results and Highlights Recent Business Updates

    Achieved AVMAPKI™ FAKZYNJA™ CO-PACK net product revenue of $2.1 million in the first six weeks of launch First patient dosed in the U.S. trial for VS-7375, an oral KRAS G12D (ON/OFF) inhibitor, in KRAS G12D advanced solid tumors Ended Q2 2025 with $164.3 million in cash and cash equivalents; with product revenue and exercise of cash warrants, Company has expected cash runway into the second half of 2026 Company to host a conference call and webcast today at 4:30 p.m. ET Verastem Oncology (NASDAQ:VSTM), a biopharmaceutical company committed to advancing new medicines for patients with RAS/MAPK pathway-driven cancers, today announced business updates and reported financial results for

    8/7/25 4:05:00 PM ET
    $VSTM
    Biotechnology: Pharmaceutical Preparations
    Health Care