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    SEC Form S-3 filed by Black Diamond Therapeutics Inc.

    11/13/25 5:20:14 PM ET
    $BDTX
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care
    Get the next $BDTX alert in real time by email
    S-3 1 tm2531084-1_s3.htm S-3 tm2531084-1_s3 - none - 7.2067323s
    TABLE OF CONTENTS
    As filed with the Securities and Exchange Commission on November 13, 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​
    ​
    BLACK DIAMOND
    THERAPEUTICS, INC.
    (Exact name of registrant as specified in its charter)
    ​
    ​
    Delaware
    (State or other jurisdiction of
    incorporation or organization)
    ​ ​
    81-4254660
    (I.R.S. Employer
    Identification Number)
    ​
    One Main Street, 14th Floor
    Cambridge, MA 02142
    (617) 252-0848
    (Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)
    ​
    Mark A. Velleca, M.D., Ph.D.
    President and Chief Executive Officer
    Black Diamond Therapeutics, Inc.
    One Main Street, 14th Floor
    Cambridge, MA 02142
    (617) 252-0848
    (Name, address, including zip code, and telephone number, including area code, of agent for service)
    ​
    Copies to:
    ​
    Robert E. Puopolo, Esq.
    Adam V. Johnson, Esq.
    Goodwin Procter LLP
    100 Northern Avenue
    Boston, MA 02210
    (617) 570-1000
    ​ ​
    Brent Hatzis-Schoch, Esq.
    Chief Operating Officer and General Counsel
    Black Diamond Therapeutics, Inc.
    One Main Street, 14th Floor
    Cambridge, MA 02142
    (617) 252-0848
    ​
    ​
    Approximate date of commencement of proposed sale to the public: From time to time after this registration statement becomes effective.
    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 the 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 OF 1933, AS AMENDED, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
    Pursuant to Rule 415(a)(6), the securities being registered hereunder include $400,005,680.55 of unsold securities which remain unsold as of the date hereof, or collectively, the Unsold Securities, previously registered by the registrant’s registration statement on Form S-3 (File No. 333-268341), which was originally filed with the Securities and Exchange Commission on November 14, 2022, or the Prior Registration Statement. The aggregate filing fee paid in connection with such Unsold Securities was $55,100. Pursuant to Rule 415(a)(6) under the Securities Act of 1933, as amended, (i) the registration fee applicable to the Unsold Securities is being carried forward to this registration statement and will continue to be applied to the Unsold Securities, and (ii) the offering of the Unsold Securities registered on the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this registration statement. If the registrant sells any of the Unsold Securities pursuant to the Prior Registration Statement after the date of the initial filing, and prior to the date of effectiveness, of this registration statement, the registrant will file a pre-effective amendment to this registration statement, which will reduce the number of Unsold Securities included on this registration statement.
    ​
    ​

    TABLE OF CONTENTS
     
    EXPLANATORY NOTE
    We are filing this registration statement with the Securities and Exchange Commission (the “SEC”) using a “shelf” registration process to replace our prior registration statement on Form S-3 (File No. 333-268341) (the “Prior Registration Statement”) that will expire on November 22, 2025, in accordance with applicable SEC regulations. Pursuant to Rule 415(a)(6) under the Securities Act of 1933, as amended (the “Securities Act”), the offering of securities under the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this registration statement. Under this registered “shelf,” in the future, we may, from time to time, sell any combination of the securities described herein, in one or more offerings, up to a maximum aggregate offering price of $500,000,000.
    This registration statement contains:
    •
    a base prospectus, which covers the offering, issuance and sale by us of the securities identified therein from time to time in one or more offerings with a total value of up to $500,000,000; and
    ​
    •
    a sales agreement prospectus, which covers the offering, issuance and sale by us of up to a maximum aggregate offering price of $150,000,000 of shares of our common stock that may be issued and sold from time to time under an Open Market Sale AgreementSM (the “Sales Agreement”) entered into with Jefferies LLC.
    ​
    The base prospectus immediately follows this explanatory note. The specific terms of any securities to be offered pursuant to the base prospectus will be specified in a prospectus supplement to the base prospectus. The specific terms of the securities to be issued and sold under the Sales Agreement are specified in the sales agreement prospectus that immediately follows the base prospectus. The $150,000,000 of our common stock that may be offered, issued and sold from time to time under the sales agreement prospectus is included in the $500,000,000 of securities that may be offered, issued and sold by us under the base prospectus. Upon termination of the Sales Agreement, any portion of the $150,000,000 included in the sales agreement prospectus that is not sold pursuant to the Sales Agreement will be available for sale in other offerings pursuant to the base prospectus and a corresponding prospectus supplement, and if no shares are sold under the sales agreement, the full $150,000,000 of securities may be sold in other offerings pursuant to the base prospectus and a corresponding prospectus supplement.
     

    TABLE OF CONTENTS
    The information in this preliminary prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor does it seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.
    SUBJECT TO COMPLETION, DATED NOVEMBER 13, 2025
    PROSPECTUS
    [MISSING IMAGE: lg_blackdiamond-4c.jpg]
    $500,000,000
    Common Stock
    Preferred Stock
    Debt Securities
    Warrants
    Units
    ​
    We may from time to time offer and sell up to $500,000,000 in aggregate principal amount of our common stock, preferred stock, debt securities, warrants and/or units, in one or more series or classes and in any combination, together or separately, in one or more offerings in amounts, at prices and on the terms that we will determine at the time of the offering and which will be set forth in a prospectus supplement to this prospectus and any related free writing prospectus.
    We may offer these securities separately or together in units. Each time we sell securities described herein, we will provide prospective investors with a supplement to this prospectus that will specify the terms of the securities being offered. We may sell these securities to or through underwriters or dealers and also to other purchasers or through agents. We will set forth the names of any underwriters or agents, and any fees, conversions, or discount arrangements, in the applicable prospectus supplement. For additional information on the methods of sale, you should refer to the section entitled “Plan of Distribution” in this prospectus and in the applicable prospectus supplement. We may not sell any securities under this prospectus without delivery of the applicable prospectus supplement. You should read this document and any prospectus supplement or amendment carefully before you invest in our securities.
    We are an “emerging growth company” and a “smaller reporting company” under the federal securities laws and, as such, are subject to certain reduced public company reporting requirements. See “The Company — Implications of Being an Emerging Growth Company and a Smaller Reporting Company.”
    Our common stock is listed on The Nasdaq Global Select Market under the symbol “BDTX.” On November 11, 2025, the closing price for our common stock, as reported on The Nasdaq Global Select Market, was $4.62 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing on The Nasdaq Global Select Market or any securities market or other exchange of the securities, if any, covered by the prospectus supplement. Our principal executive offices are located at One Main Street, 14th Floor, Cambridge, MA 02142.
    ​
    Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties referenced under the heading “Risk Factors” contained in this prospectus beginning on page 4 and any applicable prospectus supplement, and under similar headings in the other documents that are incorporated by reference into this prospectus. You should read the entire prospectus carefully before you make your investment decision.
    Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
    ​
    The date of this prospectus is            , 2025.

    TABLE OF CONTENTS​
     
    TABLE OF CONTENTS
    ​ ​ ​
    Page
    ​
    ABOUT THIS PROSPECTUS
    ​ ​ ​ ​ 1 ​ ​
    THE COMPANY
    ​ ​ ​ ​ 2 ​ ​
    RISK FACTORS
    ​ ​ ​ ​ 4 ​ ​
    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    ​ ​ ​ ​ 5 ​ ​
    USE OF PROCEEDS
    ​ ​ ​ ​ 8 ​ ​
    SECURITIES THAT WE MAY OFFER
    ​ ​ ​ ​ 9 ​ ​
    DESCRIPTION OF CAPITAL STOCK
    ​ ​ ​ ​ 10 ​ ​
    DESCRIPTION OF DEBT SECURITIES
    ​ ​ ​ ​ 15 ​ ​
    DESCRIPTION OF WARRANTS
    ​ ​ ​ ​ 21 ​ ​
    DESCRIPTION OF UNITS
    ​ ​ ​ ​ 22 ​ ​
    MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S.
    HOLDERS
    ​ ​ ​ ​ 25 ​ ​
    PLAN OF DISTRIBUTION
    ​ ​ ​ ​ 29 ​ ​
    LEGAL MATTERS
    ​ ​ ​ ​ 32 ​ ​
    EXPERTS
    ​ ​ ​ ​ 32 ​ ​
    WHERE YOU CAN FIND MORE INFORMATION
    ​ ​ ​ ​ 32 ​ ​
    INCORPORATION BY REFERENCE
    ​ ​ ​ ​ 33 ​ ​
     

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    ABOUT THIS PROSPECTUS
    This prospectus is part of a shelf registration statement on Form S-3 that we filed with the SEC using a “shelf” registration process. Under this shelf registration process, we may from time to time sell any combination of the securities described in this prospectus in one or more offerings for an aggregate offering amount of up to $500,000,000.
    This prospectus provides you with a general description of the securities we may offer. Each time we sell securities described herein, we will provide one or more prospectus supplements that will contain specific information about the terms of the offering. The applicable prospectus supplement may also add, update or change information contained in this prospectus. This prospectus, together with any accompanying prospectus supplement, contains important information you should know before investing in our securities, including important information about us and the securities being offered. You should read both this prospectus, any applicable accompanying prospectus supplement and any related free writing prospectus, together with the additional information described under the headings “Where You Can Find More Information” and “Incorporation by Reference” before buying any of the securities being offered.
    You should rely only on the information contained in, or incorporated by reference into, this prospectus, any applicable accompanying prospectus supplement or in any related free writing prospectus filed by us with the SEC. We have not authorized anyone to provide you with different information. This prospectus does not constitute an offer to sell or the solicitation of an offer to buy any securities other than the securities described in any applicable accompanying prospectus supplement or an offer to sell or the solicitation of an offer to buy such securities in any circumstances in which such offer or solicitation is unlawful. You should assume that the information appearing in this prospectus, any applicable prospectus supplement, the documents incorporated by reference and any related free writing prospectus is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed materially since those dates. This prospectus, any applicable prospectus supplement and the information incorporated herein or therein by reference contain market data, industry statistics and other data that have been obtained or compiled from information made available by independent third parties. We are responsible for all of the disclosures contained in this prospectus, and we believe that these sources are reliable; however, we have not independently verified the information contained in such publications.
    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 the heading “Where You Can Find More Information.”
    As used in this prospectus, unless the context suggests otherwise, all references to “us,” “our,” “Black Diamond,” “Black Diamond Therapeutics,” “we,” the “Company” and similar designations refer to Black Diamond Therapeutics, Inc., a Delaware corporation, and, where appropriate, our wholly-owned subsidiary.
    We have applied for various trademarks and trade names, including without limitation our corporate name and logo, that we use in connection with the operation of our business. This prospectus, any applicable prospectus supplement and the information incorporated herein or therein by reference may also contain trademarks, service marks and trade names of third parties, which are the property of their respective owners. Our use or display of third parties’ trademarks, service marks, trade names or products in this prospectus is not intended to, and does not imply a relationship with, or endorsement or sponsorship by us. Solely for convenience, the trademarks, service marks and trade names referred to or incorporated by reference in this prospectus, any applicable prospectus supplement or any free writing prospectus may appear without the ®, ™ or SM symbols, but the omission of such references is not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner of these trademarks, service marks and trade names will not assert, to the fullest extent under applicable law, its rights.
    THIS PROSPECTUS MAY NOT BE USED TO OFFER AND SELL SECURITIES UNLESS IT IS ACCOMPANIED BY AN ADDITIONAL PROSPECTUS OR A PROSPECTUS SUPPLEMENT.
     
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    THE COMPANY
    The following highlights information about us and our business contained elsewhere or incorporated by reference in this prospectus. It is not complete and does not contain all of the information that you should consider before investing in any of our securities. You should carefully read this prospectus together with the more detailed information incorporated by reference in this prospectus.
    Overview
    We are a clinical-stage oncology company developing MasterKey therapies that target families of oncogenic mutations in patients with cancer. The foundation of our company is built upon a deep understanding of cancer genetics, onco-protein structure and function, and medicinal chemistry. Our MasterKey therapies are designed to address a broad spectrum of genetically defined tumors, overcome resistance, minimize wild-type mediated toxicities, and be brain-penetrant to treat central nervous system disease. Our compounds target families of oncogenic mutations in clinically validated pathways. Our lead clinical-stage program, silevertinib (formerly BDTX-1535), is a brain-penetrant, fourth-generation epidermal growth factor receptor (“EGFR”) MasterKey inhibitor targeting epidermal growth factor receptor mutant (“EGFRm”) non-small cell lung cancer (“NSCLC”) and glioblastoma (“GBM”). In March 2025, we announced a global licensing agreement with Servier Pharmaceuticals LLC (“Servier”) for our second clinical-stage asset, BDTX-4933, a potential best-in-class targeted therapy for RAF/RAS-mutant solid tumors, and received an upfront payment of $70.0 million.
    We believe that our clinical-stage lead product candidate, silevertinib, has the potential to treat newly diagnosed patients with EGFRm NSCLC, as well as those with recurrent disease, based upon silevertinib’s ability to address greater than 50 classical and non-classical oncogenic driver mutations with greater potency than other EGFR tyrosine kinase inhibitors, as well as uniquely target the C797S resistance mutation which can be acquired after treatment with osimertinib. Silevertinib was shown to be well tolerated and achieve durable clinical responses in our Phase 1 trial in patients with recurrent EGFRm NSCLC whose tumors expressed a range of mutation subtypes, including the acquired C797S resistance mutation and a broad spectrum of non-classical mutations. We are currently evaluating silevertinib in a Phase 2 clinical trial in patients with EGFRm NSCLC in both the recurrent setting (cohorts 1 and 2) and the frontline setting (cohort 3).
    Enrollment in frontline patients harboring non-classical EGFR mutations (cohort 3, n=43) was completed in July 2025, and we are on track to announce initial results from this cohort in the fourth quarter of 2025. We plan to solicit U.S. Food and Drug Administration feedback on a potential registrational path in frontline EGFRm NSCLC in the first half of 2026, when progression free survival data from the ongoing Phase 2 trial is anticipated. We are also continuing to explore potential partnership opportunities to advance silevertinib into pivotal development.
    Corporate History and Information
    We were originally organized as a limited liability company in December 2014 under the name ASET Therapeutics LLC, and we converted to a corporation in September 2016 under the laws of the State of Delaware under the name ASET Therapeutics, Inc. On January 2, 2018, we changed our name to Black Diamond Therapeutics, Inc.
    Our principal executive offices are located at One Main Street, 14th Floor, Cambridge, MA 02142, and our telephone number is (617) 252-0848. We have one subsidiary, Black Diamond Therapeutics Security Corporation, which was incorporated in 2019. Our website address is www.blackdiamondtherapeutics.com. The information contained in, or that can be accessed through, our website, does not constitute a part of this prospectus, and is not incorporated by reference in this prospectus or in any filings we make with the SEC. We have included our website address in this prospectus solely as an inactive textual reference. Our common stock trades on The Nasdaq Global Select Market under the symbol “BDTX.”
    Implications of Being an Emerging Growth Company and a Smaller Reporting Company
    We qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012, as amended (the “JOBS Act”). As an emerging growth company, we may take advantage of specified
     
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    reduced disclosure and other requirements that are otherwise applicable generally to public companies. These provisions include:
    •
    reduced disclosure about our executive compensation arrangements;
    ​
    •
    not being required to hold advisory votes on executive compensation or to obtain stockholder approval of any golden parachute arrangements not previously approved;
    ​
    •
    an exemption from the auditor attestation requirement in the assessment of our internal control over financial reporting; and
    ​
    •
    an exemption from compliance with the requirements of the Public Company Accounting Oversight Board regarding the communication of critical audit matters in the auditor’s report on the financial statements.
    ​
    We may take advantage of these exemptions until the fifth anniversary of our initial public offering (our “IPO”) or such earlier time that we are no longer an emerging growth company. We would cease to be an emerging growth company on the date that is the earliest of (i) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more; (ii) the last day of our fiscal year following the fifth anniversary of the date of the completion of our IPO; (iii) the date on which we have issued more than $1.0 billion in nonconvertible debt during the previous three years; or (iv) the last day of the fiscal year in which we are deemed to be a large accelerated filer under the rules of the SEC, which means the market value of our common stock that is held by non-affiliates exceeds $700 million as of the prior June 30th. We may choose to take advantage of some but not all of these exemptions. We have taken advantage of reduced reporting requirements in this prospectus. Accordingly, the information contained herein may be different from the information you receive from other public companies in which you hold stock. Additionally, the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. This allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to avail ourselves of this exemption and, therefore, while we are an emerging growth company, we will not be subject to new or revised accounting standards at the same time that they become applicable to other public companies that are not emerging growth companies. As a result of this election, our financial statements may not be comparable to those of other public companies that comply with new or revised accounting pronouncements as of public company effective dates. We may choose to early adopt any new or revised accounting standards whenever such early adoption is permitted for private companies.
    We are also a “smaller reporting company” as defined in the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies until the fiscal year following the determination that our stock held by non-affiliates is more than $250 million measured on the last business day of our second fiscal quarter, or our annual revenues are more than $100 million during the most recently completed fiscal year and our stock held by non-affiliates is more than $700 million measured on the last business day of our second fiscal quarter.
    Effective as of December 31, 2025, the fifth anniversary of the closing of our IPO, we will no longer qualify as an “emerging growth company.” As a result, commencing with our Annual Report on Form 10-K for the fiscal year ending December 31, 2025, we will no longer be eligible to take advantage of certain exemptions from various reporting requirements that are applicable to emerging growth companies.
     
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    RISK FACTORS
    Investing in our securities involves a high degree of risk. You should carefully consider the risks set forth in our filings with the SEC that are incorporated by reference in this prospectus and any applicable prospectus supplement, as well as other information we include or incorporate by reference into this prospectus and any applicable prospectus supplement, before making an investment decision. Our business, financial condition or results of operations could be materially adversely affected by the materialization of any of these risks. The trading price of our securities could decline due to the materialization of any of these risks, and you may lose all or part of your investment.
    This prospectus and the documents incorporated herein by reference also contain forward-looking statements that involve risks and uncertainties. Actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks described in the documents incorporated herein by reference, including our most recent Annual Report on Form 10-K, our Quarterly Reports on Form 10-Q and our Current Reports on Form 8-K, as applicable, and the other documents we file with the SEC that are deemed incorporated by reference into this prospectus. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also adversely affect our operations.
     
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    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    This prospectus, any applicable prospectus supplement, any related free writing prospectus and the documents that we incorporate by reference herein or therein contain forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. Any statements about our expectations, beliefs, plans, objectives, assumptions or future events or performance are not historical facts and may be forward-looking. These statements are often, but are not always, made through the use of words or phrases such as “may,” “will,” “could,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects,” “potential,” “continue,” or the negative of these terms or other comparable terminology. Accordingly, these statements involve estimates, assumptions, risks and uncertainties which could cause actual results to differ materially from those expressed in them. Any forward-looking statements are qualified in their entirety by reference to the factors discussed throughout this prospectus, and in particular those factors referenced in the section “Risk Factors.”
    This prospectus contains forward-looking statements that are based on our management’s belief and assumptions and on information currently available to our management. These statements relate to future events or our future financial performance, and involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Forward-looking statements contained in this prospectus include, but are not limited to, statements about:
    •
    the progress, timing and success of our clinical trials of silevertinib (formerly BDTX-1535) and any of our future product candidates, including the availability, timing and announcement of data and results of such trials;
    ​
    •
    our ability to obtain and maintain regulatory approval for silevertinib or any of our future product candidates that we may identify or develop;
    ​
    •
    the scope, timing, progress and results of our clinical trials and investigational new drug (“IND”) applications, development efforts and other regulatory submissions;
    ​
    •
    the effects of competition with respect to silevertinib or any of our other current or future product candidates, as well as innovations by current and future competitors in our industry;
    ​
    •
    our evaluation of potential partnership opportunities to advance the pivotal development of silevertinib in a timely manner and to successfully execute and realize the intended and potential benefits of any such potential partnership;
    ​
    •
    our partnership with Servier and the intended and potential benefits thereof, including the receipt of potential milestone and royalty payments from commercial product sales, along with tiered royalties based on global net sales, if any;
    ​
    •
    Servier’s ability to develop and commercialize BDTX-4933, including the ongoing Phase 1 clinical trial of BDTX-4933, and the potential of BDTX-4933 to address the unmet medical need for patients with RAF/RAS-mutant solid tumors, including NSCLC;
    ​
    •
    our evaluation of strategic alternatives for BDTX-4876, including our ability to execute and realize the anticipated benefits of any strategic alternatives we may pursue;
    ​
    •
    our need to raise additional funding before we can expect to generate any revenues from product sales;
    ​
    •
    our ability to develop our current and future product candidates for the treatment of various cancers;
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    •
    the rate and degree of market acceptance and clinical utility for any current or future product candidates we may develop;
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    •
    the implementation of our strategic plans for our business and our product candidates;
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    •
    our ability to successfully develop companion diagnostics for use with our current or future product candidates;
    ​
     
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    •
    our intellectual property position, including the scope of protection we are able to establish, maintain and enforce for intellectual property rights covering our product candidates and Mutation-Allostery-Pharmacology (“MAP”) drug discovery engine;
    ​
    •
    our ability to obtain additional funding for our operations, when needed, including funding necessary to complete further development and commercialization of our product candidates, if approved;
    ​
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    the period over which we expect our existing cash, cash equivalents and investments will be sufficient to fund our operating expenses and capital expenditure requirements;
    ​
    •
    the accuracy of our estimates regarding expenses, future revenue, capital requirements and needs for additional financing;
    ​
    •
    our future financial performance and our ability to effectively manage our anticipated growth;
    ​
    •
    our estimates regarding the market opportunities for our product candidates, including our competitive position and the success of competing therapies that are or may become available;
    ​
    •
    our need for and ability to attract and retain key scientific, management and other personnel and to identify, hire and retain additional qualified professionals;
    ​
    •
    the potential for our business development efforts to maximize the value of our product candidates;
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    •
    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;
    ​
    •
    our ability to establish or maintain collaborations or strategic relationships, the ability and willingness of our third-party strategic collaborators to undertake research and development activities relating to our current or future product candidates, and the achievement of milestones or occurrence of other developments that trigger payments under any collaboration agreements, if any;
    ​
    •
    our ability to maintain an effective system of internal controls;
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    •
    our anticipated use of net proceeds from offerings of our securities under this prospectus; and
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    the impact of macroeconomic and geopolitical developments on our business, including rising inflation and capital market disruptions, changes in or disruptions of U.S. governmental agencies whether from a continued U.S. federal government shutdown or reduced resources, new or increased international tariffs and retaliatory tariffs, new laws and regulations or amendments to existing laws and regulations in the U.S. and foreign countries, trade protection measures, economic sanctions and economic slowdowns or recessions that may result from such developments which could harm our research and development efforts as well as the value of our common stock and our ability to access capital markets.
    ​
    These forward-looking statements are neither promises nor guarantees of future performance due to a variety of risks and uncertainties, many of which are beyond our control, which could cause actual results to differ materially from those indicated by these forward-looking statements, including, without limitation the risk factors and cautionary statements described in other documents that we file from time to time with the SEC, specifically under “Item 1A. Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K for the year ended December 31, 2024, our subsequent Quarterly Reports on Form 10-Q and our Current Reports on Form 8-K that are incorporated herein by reference, as applicable, and the section of any accompanying prospectus supplement entitled “Risk Factors.”
    The forward-looking statements in this prospectus, including the documents incorporated by reference herein, represent our current views concerning future developments and their potential effects on us as of their respective dates. We anticipate that subsequent events and developments will cause our views to change. Some of these risks and uncertainties may in the future be amplified by global health crises, macroeconomic conditions and geopolitical developments, and there may be additional risks that we consider immaterial or which are unknown. It is not possible to predict or identify all such risks. However, while we may elect to update these forward-looking statements at some point in the future, we assume no obligation to update or revise any forward-looking statements except to the extent required by applicable law. You should, therefore, not rely on these forward-looking statements as representing our views as of any date subsequent to the dates on which they were made.
     
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    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 reflected in this prospectus. Unless otherwise expressly stated, we obtained this industry, 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 some cases applying our own assumptions and analysis that may, in the future, prove not to have been accurate. While we are not aware of any misstatements regarding any third-party information presented in this prospectus, their estimates, in particular, as they relate to projections, involve numerous assumptions, are subject to risks and uncertainties and are subject to change based on various factors. You should read this prospectus, any applicable prospectus supplement and any related free writing prospectus and the documents that we reference therein and have filed with the SEC as exhibits thereto completely and with the understanding that our actual future results may be materially different from any future results expressed or implied by these forward-looking statements.
     
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    USE OF PROCEEDS
    We will retain broad discretion over the use of the net proceeds from the sale of the securities offered hereby. Except as described in any applicable prospectus supplement or in any free writing prospectus that we may authorize to be provided to you in connection with a specific offering, we currently intend to use the net proceeds from the sale of any securities offered hereby for general corporate purposes. General corporate purposes may include, without limitation, research and development and clinical development costs to support the advancement of our product candidates and the expansion of our research and development programs; working capital; capital expenditures; and other general corporate purposes. We may temporarily invest the net proceeds in a variety of capital preservation instruments, including short-term, investment-grade, interest-bearing instruments and U.S. government securities, or may hold such proceeds as cash, until they are used for their stated purpose. We have not determined the amount of net proceeds to be used specifically for such purposes. As a result, management will retain broad discretion over the allocation of net proceeds.
     
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    SECURITIES THAT WE MAY OFFER
    This prospectus contains summary descriptions of the securities we may offer from time to time. These summary descriptions are not meant to be complete descriptions of each security. The particular terms of any security will be described in the applicable prospectus supplement. This prospectus provides you with a general description of the securities we may offer. Each time we sell securities described herein, we will provide prospective investors with a supplement to this prospectus that will contain specific information about the terms of that offering, including the specific amounts, prices and terms of the securities offered.
    We may sell the securities to or through underwriters, dealers or agents, directly to purchasers or through a combination of any of these methods of sale or as otherwise set forth below under “Plan of Distribution.” We, as well as any agents acting on our behalf, reserve the sole right to accept and to reject in whole or in part any proposed purchase of securities. Any prospectus supplement will set forth the names of any underwriters, dealers, agents or other entities involved in the sale of securities described in that prospectus supplement and any applicable fee, commission or discount arrangements with them.
     
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    DESCRIPTION OF CAPITAL STOCK
    The following description of our capital stock is intended as a summary only and therefore is not a complete description of our capital stock. This description is based upon, and is qualified in its entirety by reference to, our Fourth Amended and Restated Certificate of Incorporation, as amended (our “certificate of incorporation”), and our Second Amended and Restated By-laws (our “by-laws”), and applicable provisions of Delaware corporate law. You should read our certificate of incorporation and our by-laws, in each case, as amended and supplemented, which are filed as exhibits to the registration statement of which this prospectus forms a part, for the provisions that are important to you.
    Authorized Capital Stock
    Our authorized capital stock consists of 500,000,000 shares of common stock, par value $0.0001 per share, and 10,000,000 shares of preferred stock, par value $0.0001 per share, all of which are undesignated preferred stock. As of September 30, 2025, we had 56,943,413 shares of our common stock outstanding and no shares of preferred stock outstanding.
    Common Stock
    The holders of our common stock are entitled to one vote for each share held on all matters submitted to a vote of the stockholders. The holders of our common stock do not have any cumulative voting rights. Holders of our common stock are entitled to receive ratably any dividends declared by our board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred stock. Our common stock has no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.
    In the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to share ratably in all assets remaining after payment of all debts and other liabilities and any liquidation preference of any outstanding preferred stock. The rights, preferences and privileges of holders of common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate and issue in the future.
    All outstanding shares are fully paid and non-assessable. When we issue shares of common stock under this prospectus, the shares will fully be paid and non-assessable and will not have, or be subject to, any preemptive or similar rights.
    Preferred Stock
    Our board of directors will have the authority, without further action by our stockholders, to issue up to an aggregate of 10,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting, or the designation of, such series, any or all of which may be greater than the rights of common stock. The issuance of our preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive dividend payments and payments upon our liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing a change in control of our company or other corporate action.
    We have no shares of preferred stock outstanding as of the date of this prospectus, and we have no present plan to issue any shares of preferred stock.
    Registration Rights
    Pursuant to the terms of our Second Amended and Restated Investors’ Rights Agreement, dated as of November 25, 2019 (the “Investors’ Rights Agreement”), with certain of our stockholders, including our principal stockholders and their affiliates, certain of our stockholders are entitled to rights with respect to the registration of their shares under the Securities Act, including demand registration rights, short-form registration rights and piggyback registration rights. All fees, costs and expenses of underwritten registrations under the Amended and Restated Investors’ Rights Agreement will be borne by us, and all selling expenses,
     
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    including underwriting discounts and selling commissions, will be borne by the holders of the shares being registered. We refer to these shares collectively as registrable securities.
    Demand Registration Rights
    The holders of our registrable securities are entitled to demand registration rights. Under the terms of the Investors’ Rights Agreement, we will be required, upon the written request of holders of at least a majority of the then outstanding registrable securities, to file a registration statement on Form S-1 with respect to at least forty percent of the registrable securities then outstanding, we will be required to file a registration statement on Form S-1 covering all securities eligible for registration that our stockholders request to be included in such registration. We are required to effect only two registrations pursuant to this provision of the Investors’ Rights Agreement in any twelve-month period.
    Short-Form Registration Rights
    The holders of our registrable securities are also entitled to short form registration rights. Pursuant to the Investors’ Rights Agreement, if we are eligible to file a registration statement on Form S-3, upon the written request of stockholders holding at least a majority of the securities eligible for registration then outstanding we will be required to file a Form S-3 registration restatement with respect to outstanding securities of such stockholders having an anticipated aggregate offering, net of related fees and expenses, of at least $5 million. We are required to effect only two registrations in any twelve-month period pursuant to this provision of the Investors’ Rights Agreement. The right to have such shares registered on Form S-3 is further subject to other specified conditions and limitations.
    Piggyback Registration Rights
    Pursuant to the Investors’ Rights Agreement, if we register any of our securities either for our own account or for the account of other security holders, the holders of our common stock, including those issuable upon the conversion of our preferred stock, are entitled to include their shares in the registration. Subject to certain exceptions contained in the Investors’ Rights Agreement, we and the underwriters may limit the number of shares included in the underwritten offering to the number of shares which we and the underwriters determine in our sole discretion will not jeopardize the success of the offering.
    Indemnification
    The Investors’ Rights Agreement contains customary cross-indemnification provisions, under which we are obligated to indemnify holders of registrable securities in the event of material misstatements or omissions in the registration statement attributable to us, and they are obligated to indemnify us for material misstatements or omissions attributable to them.
    Expiration of Registration Rights
    The demand registration rights and short form registration rights granted under the Investors’ Rights Agreement will terminate upon the earlier of (i) a deemed liquidation event, as defined in our certificate of incorporation, (ii) at such time after our IPO when all registrable securities could be sold under Rule 144 of the Securities Act or a similar exemption without limitation during a three-month period without registration, or (iii) the fifth anniversary of our IPO.
    Anti-Takeover Effects of Delaware Law and Provisions of our Certificate of Incorporation and our By-laws
    Certain provisions of the Delaware General Corporation Law (the “DGCL”), and of our certificate of incorporation and our by-laws could have the effect of delaying, deferring or preventing another party from acquiring control of us and encouraging persons considering unsolicited tender offers or other unilateral takeover proposals to negotiate with our board of directors rather than pursue non-negotiated takeover attempts. These provisions include the items described below.
    Delaware Anti-Takeover Statute
    We are subject to the provisions of Section 203 of the DGCL. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested
     
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    stockholder” for a three-year period following the time that this stockholder becomes an interested stockholder, unless the business combination is approved in a prescribed manner. Under Section 203, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following conditions:
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    before the stockholder became interested, our board of directors approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder;
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    upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding, shares owned by persons who are directors and also officers, and employee stock plans, in some instances, but not the outstanding voting stock owned by the interested stockholder; or
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    at or after the time the stockholder became interested, the business combination was approved by our board of directors and authorized at an annual or special meeting of the stockholders by the affirmative vote of at least two-thirds of the outstanding voting stock which is not owned by the interested stockholder.
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    Section 203 defines a business combination to include:
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    any merger or consolidation involving the corporation and the interested stockholder;
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    any sale, transfer, lease, pledge, exchange, mortgage or other disposition involving the interested stockholder of 10% or more of the assets of the corporation;
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    subject to exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested stockholder;
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    subject to exceptions, any transaction involving the corporation that has the effect of increasing the proportionate share of the stock of any class or series of the corporation beneficially owned by the interested stockholder; or
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    the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the corporation.
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    In general, Section 203 defines an interested stockholder as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by the entity or person.
    Board Composition and Filling Vacancies
    Our certificate of incorporation provides for the division of our board of directors into three classes serving staggered three-year terms, with one class being elected each year. Our certificate of incorporation also provides that directors may be removed only for cause and then only by the affirmative vote of the holders of two-thirds (2/3) or more of the shares then entitled to vote at an election of directors. Furthermore, any vacancy on our board of directors, however occurring, including a vacancy resulting from an increase in the size of our board of directors, may only be filled by the affirmative vote of a majority of our directors then in office even if less than a quorum. The classification of directors, together with the limitations on removal of directors and treatment of vacancies, has the effect of making it more difficult for stockholders to change the composition of our board of directors.
    No Written Consent of Stockholders
    Our certificate of incorporation provides that all stockholder actions are required to be taken by a vote of the stockholders at an annual or special meeting, and that stockholders may not take any action by written consent in lieu of a meeting. This limit may lengthen the amount of time required to take stockholder actions and would prevent the amendment of our by-laws or removal of directors by our stockholders without holding a meeting of stockholders.
     
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    Meetings of Stockholders
    Our certificate of incorporation and by-laws provide that only a majority of the members of our board of directors then in office may call special meetings of stockholders and only those matters set forth in the notice of the special meeting may be considered or acted upon at a special meeting of stockholders. Our by-laws limit the business that may be conducted at an annual meeting of stockholders to those matters properly brought before the meeting.
    Advance Notice Requirements
    Our by-laws establish advance notice procedures with regard to stockholder proposals relating to the nomination of candidates for election as directors or new business to be brought before meetings of our stockholders. These procedures provide that notice of stockholder proposals must be timely given in writing to our corporate secretary prior to the meeting at which the action is to be taken. Generally, to be timely, notice must be received at our principal executive offices not less than 90 days nor more than 120 days prior to the first anniversary date of the annual meeting for the preceding year. Our by-laws specify the requirements as to form and content of all stockholders’ notices. These requirements may preclude stockholders from bringing matters before the stockholders at an annual or special meeting.
    Amendment to our Certificate of Incorporation and By-laws
    Any amendment of our certificate of incorporation must first be approved by a majority of our board of directors, and if required by law or our certificate of incorporation, must thereafter be approved by a majority of the outstanding shares entitled to vote on the amendment and a majority of the outstanding shares of each class entitled to vote thereon as a class, except that the amendment of the provisions relating to stockholder action, board composition, limitation of liability and the amendment of our by-laws and certificate of incorporation must be approved by not less than two thirds (2/3) of the outstanding shares entitled to vote on the amendment, and not less than two thirds (2/3) of the outstanding shares of each class entitled to vote thereon as a class.
    Our by-laws may be amended by the affirmative vote of a majority of the directors then in office, subject to any limitations set forth in the by-laws; and may also be amended by the affirmative vote of at least two thirds (2/3) of the outstanding shares entitled to vote on the amendment, or, if our board of directors recommends that the stockholders approve the amendment, by the affirmative vote of the majority of the outstanding shares entitled to vote on the amendment, in each case voting together as a single class.
    Undesignated Preferred Stock
    Our certificate of incorporation provides for 10,000,000 authorized shares of preferred stock. The existence of authorized but unissued shares of preferred stock may enable our board of directors to discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest or otherwise. For example, if in the due exercise of its fiduciary obligations, our board of directors were to determine that a takeover proposal is not in the best interests of our stockholders, our board of directors could cause shares of preferred stock to be issued without stockholder approval in one or more private offerings or other transactions that might dilute the voting or other rights of the proposed acquirer or insurgent stockholder or stockholder group. In this regard, our certificate of incorporation grants our board of directors broad power to establish the rights and preferences of authorized and unissued shares of preferred stock. The issuance of shares of preferred stock could decrease the amount of earnings and assets available for distribution to holders of shares of common stock. The issuance may also adversely affect the rights and powers, including voting rights, of these holders and may have the effect of delaying, deterring or preventing a change in control of us.
    Choice of Forum
    Our by-laws provide that the Court of Chancery of the State of Delaware will be the exclusive forum for (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of, or a claim based on, a breach of fiduciary duty by any of our current or former directors, officers, employees or stockholders, (iii) any action asserting a claim arising pursuant to the DGCL, or certificate of incorporation
     
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    or our by-laws (including the interpretation, validity or enforceability thereof) or as to which the DGCL confers jurisdiction on the Court of Chancery of the State of Delaware, or (iv) any action asserting a claim that is governed by the internal affairs doctrine, in each case subject to the Court of Chancery having personal jurisdiction over the indispensable parties named as defendants therein (the “Delaware Forum Provision”); provided, however, that this sentence will not apply to any causes of action arising under the Exchange Act or the Securities Act, or to any claim for which the federal courts have exclusive jurisdiction. Unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the sole and exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act, the Exchange Act, or the respective rules and regulations promulgated thereunder. In addition, to the fullest extent permitted by law, our by-laws further provide that any person or entity purchasing or otherwise acquiring any interest in shares of our common stock is deemed to have notice of and consented to the Delaware Forum Provision.
    We recognize that the Delaware Forum Provision in our by-laws may impose additional litigation costs on stockholders in pursuing any such claims, particularly if the stockholders do not reside in or near the State of Delaware. Additionally, the Delaware Forum Provision may limit our stockholders’ ability to bring a claim in a judicial forum that they find favorable for disputes with us or our directors, officers or employees, which may discourage such lawsuits against us and our directors, officers and employees. The Court of Chancery of the State of Delaware may also reach different judgments or results than would other courts, including courts where a stockholder considering an action may be located or would otherwise choose to bring the action, and such judgments may be more or less favorable to us than our stockholders.
    Stock Exchange Listing
    Our common stock is listed on The Nasdaq Global Select Market under the trading symbol “BDTX.”
    Transfer Agent and Registrar
    The transfer agent and registrar for our common stock is Computershare Trust Company, N.A. The transfer agent and registrar’s address is 150 Royall Street, Canton, Massachusetts 02021, and its telephone number is (800) 962-4284.
     
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    DESCRIPTION OF DEBT SECURITIES
    We may issue debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. While the terms we have summarized below will apply generally to any debt securities that we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. The terms of any debt securities offered under a prospectus supplement may differ from the terms described below. Unless the context requires otherwise, whenever we refer to the indenture, we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.
    We will issue the debt securities under the indenture that we will enter into with the trustee named in the indenture. The indenture will be qualified under the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”). We have filed the form of indenture as an exhibit to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of the debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part, or will be incorporated by reference from, reports that we file with the SEC.
    The following summary of material provisions of the debt securities and the indenture is subject to, and qualified in its entirety by reference to, all of the provisions of the indenture applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete indenture that contains the terms of the debt securities.
    General
    The indenture does not limit the amount of debt securities that we may issue. It provides that we may issue debt securities up to the principal amount that we may authorize and may be in any currency or currency unit that we may designate. Except for the limitations on consolidation, merger and sale of all or substantially all of our assets contained in the indenture, the terms of the indenture do not contain any covenants or other provisions designed to give holders of any debt securities protection against changes in our operations, financial condition or transactions involving us.
    We may issue the debt securities issued under the indenture as “discount securities,” which means they may be sold at a discount below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may be issued with “original issue discount” ​(“OID”) for U.S. federal income tax purposes because of interest payment and other characteristics or terms of the debt securities. Material U.S. federal income tax considerations applicable to debt securities issued with OID will be described in more detail in any applicable prospectus supplement.
    We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:
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    the title of the series of debt securities;
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    any limit upon the aggregate principal amount that may be issued;
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    the maturity date or dates;
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    the form of the debt securities of the series;
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    the applicability of any guarantees;
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    whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;
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    whether the debt securities rank as senior debt, senior subordinated debt, subordinated debt or any combination thereof, and the terms of any subordination;
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    if the price (expressed as a percentage of the aggregate principal amount thereof) at which such debt securities will be issued is a price other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, or if applicable, the portion of the principal amount of such debt securities that is convertible into another security or the method by which any such portion shall be determined;
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    •
    the interest rate or rates, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;
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    our right, if any, to defer payment of interest and the maximum length of any such deferral period;
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    if applicable, the date or dates after which, or the period or periods during which, and the price or prices at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;
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    the date or dates, if any, on which, and the price or prices at which we are obligated, pursuant to any mandatory sinking fund or analogous fund provisions or otherwise, to redeem, or at the holder’s option to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;
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    the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;
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    any and all terms, if applicable, relating to any auction or remarketing of the debt securities of that series and any security for our obligations with respect to such debt securities and any other terms which may be advisable in connection with the marketing of debt securities of that series;
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    whether the debt securities of the series shall be issued in whole or in part in the form of a global security or securities; the terms and conditions, if any, upon which such global security or securities may be exchanged in whole or in part for other individual securities; and the depositary for such global security or securities;
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    if applicable, the provisions relating to conversion or exchange of any debt securities of the series and the terms and conditions upon which such debt securities will be so convertible or exchangeable, including the conversion or exchange price, as applicable, or how it will be calculated and may be adjusted, any mandatory or optional (at our option or the holders’ option) conversion or exchange features, the applicable conversion or exchange period and the manner of settlement for any conversion or exchange;
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    if other than the full principal amount thereof, the portion of the principal amount of debt securities of the series which shall be payable upon declaration of acceleration of the maturity thereof;
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    additions to or changes in the covenants applicable to the particular debt securities being issued, including, among others, the consolidation, merger or sale covenant;
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    additions to or changes in the events of default with respect to the securities and any change in the right of the trustee or the holders to declare the principal, premium, if any, and interest, if any, with respect to such securities to be due and payable;
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    additions to or changes in or deletions of the provisions relating to covenant defeasance and legal defeasance;
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    additions to or changes in the provisions relating to satisfaction and discharge of the indenture;
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    additions to or changes in the provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;
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    the currency of payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars;
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    whether interest will be payable in cash or additional debt securities at our or the holders’ option and the terms and conditions upon which the election may be made;
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    the terms and conditions, if any, upon which we will pay amounts in addition to the stated interest, premium, if any and principal amounts of the debt securities of the series to any holder that is not a “United States person” for federal tax purposes;
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    any restrictions on transfer, sale or assignment of the debt securities of the series; and
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    •
    any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, any other additions or changes in the provisions of the indenture, and any terms that may be required by us or advisable under applicable laws or regulations.
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    Conversion or Exchange Rights
    We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our common stock or our other securities. We will include provisions as to settlement upon conversion or exchange and whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.
    Consolidation, Merger or Sale
    Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indenture will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of our assets as an entirety or substantially as an entirety. However, any successor to or acquirer of such assets (other than any subsidiary of ours) must assume all of our obligations under the indenture or the debt securities, as appropriate.
    Events of Default under the Indenture
    Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indenture with respect to any series of debt securities that we may issue:
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    if we fail to pay any installment of interest on any series of debt securities, as and when the same shall become due and payable, and such default continues for a period of 90 days; provided, however, that a valid extension of an interest payment period by us in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of interest for this purpose;
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    if we fail to pay the principal of, or premium, if any, on any series of debt securities as and when the same shall become due and payable whether at maturity, upon redemption, by declaration or otherwise, or in any payment required by any sinking or analogous fund established with respect to such series; provided, however, that a valid extension of the maturity of such debt securities in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of principal or premium, if any;
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    if we fail to observe or perform any other covenant or agreement contained in the debt securities or the indenture, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive written notice of such failure, requiring the same to be remedied and stating that such is a notice of default thereunder, from the trustee or holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and
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    if specified events of bankruptcy, insolvency or reorganization occur.
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    If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the trustee if notice is given by such holders, may declare the unpaid principal of, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default specified in the last bullet point above occurs with respect to us, the principal amount of and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the trustee or any holder.
    The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or
     
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    events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any waiver shall cure the default or event of default.
    Subject to the terms of the indenture, if an event of default under an indenture shall occur and be continuing, the trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of that series, provided that:
    •
    the direction so given by the holder is not in conflict with any law or the applicable indenture; and
    ​
    •
    subject to its duties under the Trust Indenture Act, the trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.
    ​
    A holder of the debt securities of any series will have the right to institute a proceeding under the indenture or to appoint a receiver or trustee, or to seek other remedies only if:
    •
    the holder has given written notice to the trustee of a continuing event of default with respect to that series;
    ​
    •
    the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made written request,
    ​
    •
    such holders have offered to the trustee indemnity satisfactory to it against the costs, expenses and liabilities to be incurred by the trustee in compliance with the request; and
    ​
    •
    the trustee does not institute the proceeding, and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 90 days after the notice, request and offer.
    ​
    These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.
    We will periodically file statements with the trustee regarding our compliance with specified covenants in the indenture.
    Modification of Indenture; Waiver
    We and the trustee may change an indenture without the consent of any holders with respect to specific matters:
    •
    to cure any ambiguity, defect or inconsistency in the indenture or in the debt securities of any series;
    ​
    •
    to comply with the provisions described above under “Description of Debt Securities —  Consolidation, Merger or Sale”;
    ​
    •
    to provide for uncertificated debt securities in addition to or in place of certificated debt securities;
    ​
    •
    to add to our covenants, restrictions, conditions or provisions such new covenants, restrictions, conditions or provisions for the benefit of the holders of all or any series of debt securities, to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default or to surrender any right or power conferred upon us in the indenture;
    ​
    •
    to add to, delete from or revise the conditions, limitations, and restrictions on the authorized amount, terms, or purposes of issue, authentication and delivery of debt securities, as set forth in the indenture;
    ​
    •
    to make any change that does not adversely affect the interests of any holder of debt securities of any series in any material respect;
    ​
     
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    •
    to provide for the issuance of and establish the form and terms and conditions of the debt securities of any series as provided above under “Description of Debt Securities — General” to establish the form of any certifications required to be furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;
    ​
    •
    to evidence and provide for the acceptance of appointment under any indenture by a successor trustee; or
    ​
    •
    to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act.
    ​
    In addition, under the indenture, the rights of holders of a series of debt securities may be changed by us and the trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may make the following changes only with the consent of each holder of any outstanding debt securities affected:
    •
    extending the fixed maturity of any debt securities of any series;
    ​
    •
    reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any series of any debt securities; or
    ​
    •
    reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver.
    ​
    Discharge
    Each indenture provides that we can elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:
    •
    provide for payment;
    ​
    •
    register the transfer or exchange of debt securities of the series;
    ​
    •
    replace stolen, lost or mutilated debt securities of the series;
    ​
    •
    pay principal of and premium and interest on any debt securities of the series;
    ​
    •
    maintain paying agencies;
    ​
    •
    hold monies for payment in trust;
    ​
    •
    recover excess money held by the trustee;
    ​
    •
    compensate and indemnify the trustee; and
    ​
    •
    appoint any successor trustee.
    ​
    In order to exercise our rights to be discharged, we must deposit with the trustee money or government obligations sufficient to pay all the principal of, any premium, if any, and interest on, the debt securities of the series on the dates payments are due.
    Form, Exchange and Transfer
    We will issue the debt securities of each series only in fully registered form without coupons and, unless we provide otherwise in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indenture provides that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company (“DTC”) or another depositary named by us and identified in the applicable prospectus supplement with respect to that series. To the extent the debt securities of a series are issued in global form and as book-entry, a description of terms relating to any book-entry securities will be set forth in the applicable prospectus supplement.
    At the option of the holder, subject to the terms of the indenture and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any
     
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    series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.
    Subject to the terms of the indenture and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will impose no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.
    We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.
    If we elect to redeem the debt securities of any series, we will not be required to:
    •
    issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or
    ​
    •
    register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.
    ​
    Information Concerning the Trustee
    The trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of default under an indenture, the trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the trustee is under no obligation to exercise any of the powers given it by the indenture at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur.
    Payment and Paying Agents
    Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.
    We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in the applicable prospectus supplement, we will designate the corporate trust office of the trustee as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.
    All money we pay to a paying agent or the trustee for the payment of the principal of or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.
    Governing Law
    The indenture and the debt securities will be governed by and construed in accordance with the laws of the state of New York, except to the extent that the Trust Indenture Act is applicable.
     
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    DESCRIPTION OF WARRANTS
    The following description, together with the additional information we may include in any applicable prospectus supplements, summarizes the material terms and provisions of the warrants that we may offer under this prospectus and the related warrant agreements and warrant certificates. While the terms summarized below will apply generally to any warrants that we may offer, we will describe the particular terms of any series of warrants in more detail in the applicable prospectus supplement. If we indicate in the prospectus supplement, the terms of any warrants offered under that prospectus supplement may differ from the terms described below. Specific warrant agreements will contain additional important terms and provisions and will be incorporated by reference as an exhibit to the registration statement, which includes this prospectus.
    General
    We may issue warrants for the purchase of common stock, preferred stock and/or debt securities in one or more series. We may issue warrants independently or together with common stock, preferred stock and/or debt securities, and the warrants may be attached to or separate from these securities.
    We will evidence each series of warrants by warrant certificates that we will issue under a separate warrant agreement. We will enter into the warrant agreement with a warrant agent. We will indicate the name and address of the warrant agent in the applicable prospectus supplement relating to a particular series of warrants.
    We will describe in the applicable prospectus supplement the terms of the series of warrants, including:
    •
    the offering price and aggregate number of warrants offered;
    ​
    •
    the currency for which the warrants may be purchased;
    ​
    •
    if applicable, the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each such security or each principal amount of such security;
    ​
    •
    if applicable, the date on and after which the warrants and the related securities will be separately transferable;
    ​
    •
    in the case of warrants to purchase debt securities, the principal amount of debt securities purchasable upon exercise of one warrant and the price at, and currency in which, this principal amount of debt securities may be purchased upon such exercise;
    ​
    •
    in the case of warrants to purchase common stock or preferred stock, the number of shares of common stock or preferred stock, as the case may be, purchasable upon the exercise of one warrant and the price at which these shares may be purchased upon such exercise;
    ​
    •
    the effect of any merger, consolidation, sale or other disposition of our business on the warrant agreement and the warrants;
    ​
    •
    the terms of any rights to redeem or call the warrants;
    ​
    •
    any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;
    ​
    •
    the periods during which, and places at which, the warrants are exercisable;
    ​
    •
    the manner of exercise;
    ​
    •
    the dates on which the right to exercise the warrants will commence and expire;
    ​
    •
    the manner in which the warrant agreement and warrants may be modified;
    ​
    •
    federal income tax consequences of holding or exercising the warrants;
    ​
    •
    the terms of the securities issuable upon exercise of the warrants; and
    ​
    •
    any other specific terms, preferences, rights or limitations of or restrictions on the warrants.
    ​
     
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    DESCRIPTION OF UNITS
    We may issue units comprised of shares of common stock, shares of preferred stock, debt securities and warrants in any combination. We may issue units in such amounts and in as many distinct series as we wish. This section outlines certain provisions of the units that we may issue. If we issue units, they will be issued under one or more unit agreements to be entered into between us and a bank or other financial institution, as unit agent. The information described in this section may not be complete in all respects and is qualified entirely by reference to the unit agreement with respect to the units of any particular series. The specific terms of any series of units offered will be described in the applicable prospectus supplement. If so described in a particular supplement, the specific terms of any series of units may differ from the general description of terms presented below. We urge you to read any prospectus supplement related to any series of units we may offer, as well as the complete unit agreement and unit certificate that contain the terms of the units. If we issue units, forms of unit agreements and unit certificates relating to such units will be incorporated by reference as exhibits to the registration statement, which includes this prospectus.
    Each unit that we may issue will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date. The applicable prospectus supplement may describe:
    •
    the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;
    ​
    •
    any provisions of the governing unit agreement;
    ​
    •
    the price or prices at which such units will be issued;
    ​
    •
    the applicable United States federal income tax considerations relating to the units;
    ​
    •
    any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units; and
    ​
    •
    any other terms of the units and of the securities comprising the units.
    ​
    The provisions described in this section, as well as those described under “Description of Capital Stock,” “Description of Debt Securities” and “Description of Warrants” will apply to the securities included in each unit, to the extent relevant and as may be updated in any prospectus supplements.
    Issuance in Series
    We may issue units in such amounts and in as many distinct series as we wish. This section summarizes terms of the units that apply generally to all series. Most of the financial and other specific terms of a particular series of units will be described in the applicable prospectus supplement.
    Unit Agreements
    We will issue the units under one or more unit agreements to be entered into between us and a bank or other financial institution, as unit agent. We may add, replace or terminate unit agents from time to time. We will identify the unit agreement under which each series of units will be issued and the unit agent under that agreement in the applicable prospectus supplement.
    The following provisions will generally apply to all unit agreements unless otherwise stated in the applicable prospectus supplement:
    Modification without Consent
    We and the applicable unit agent may amend any unit or unit agreement without the consent of any holder:
    •
    to cure any ambiguity, including modifying any provisions of the governing unit agreement that differ from those described below;
    ​
     
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    •
    to correct or supplement any defective or inconsistent provision; or
    ​
    •
    to make any other change that we believe is necessary or desirable and will not adversely affect the interests of the affected holders in any material respect.
    ​
    We do not need any approval to make changes that affect only units to be issued after the changes take effect. We may also make changes that do not adversely affect a particular unit in any material respect, even if they adversely affect other units in a material respect. In those cases, we do not need to obtain the approval of the holder of the unaffected unit; we need only obtain any required approvals from the holders of the affected units.
    Modification with Consent
    We may not amend any particular unit or a unit agreement with respect to any particular unit unless we obtain the consent of the holder of that unit, if the amendment would:
    •
    impair any right of the holder to exercise or enforce any right under a security included in the unit if the terms of that security require the consent of the holder to any changes that would impair the exercise or enforcement of that right; or
    ​
    •
    reduce the percentage of outstanding units or any series or class the consent of whose holders is required to amend that series or class, or the applicable unit agreement with respect to that series or class, as described below.
    ​
    Any other change to a particular unit agreement and the units issued under that agreement would require the following approval:
    •
    If the change affects only the units of a particular series issued under that agreement, the change must be approved by the holders of a majority of the outstanding units of that series; or
    ​
    •
    If the change affects the units of more than one series issued under that agreement, it must be approved by the holders of a majority of all outstanding units of all series affected by the change, with the units of all the affected series voting together as one class for this purpose.
    ​
    These provisions regarding changes with majority approval also apply to changes affecting any securities issued under a unit agreement, as the governing document.
    In each case, the required approval must be given by written consent.
    Unit Agreements Will Not Be Qualified under Trust Indenture Act
    No unit agreement will be qualified as an indenture, and no unit agent will be required to qualify as a trustee, under the Trust Indenture Act. Therefore, holders of units issued under unit agreements will not have the protections of the Trust Indenture Act with respect to their units.
    Mergers and Similar Transactions Permitted; No Restrictive Covenants or Events of Default
    The unit agreements will not restrict our ability to merge or consolidate with, or sell our assets to, another corporation or other entity or to engage in any other transactions. If at any time we merge or consolidate with, or sell our assets substantially as an entirety to, another corporation or other entity, the successor entity will succeed to and assume our obligations under the unit agreements. We will then be relieved of any further obligation under these agreements.
    The unit agreements will not include any restrictions on our ability to put liens on our assets, nor will they restrict our ability to sell our assets. The unit agreements also will not provide for any events of default or remedies upon the occurrence of any events of default.
    Governing Law
    The unit agreements and the units will be governed by Delaware law.
     
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    Form, Exchange and Transfer
    We will issue each unit in global — i.e., book-entry — form only. Units in book-entry form will be represented by a global security registered in the name of a depositary, which will be the holder of all the units represented by the global security. Those who own beneficial interests in a unit will do so through participants in the depositary’s system, and the rights of these indirect owners will be governed solely by the applicable procedures of the depositary and its participants. We will describe book-entry securities, and other terms regarding the issuance and registration of the units in the applicable prospectus supplement.
    Each unit and all securities comprising the unit will be issued in the same form.
    If we issue any units in registered, non-global form, the following will apply to them.
    The units will be issued in the denominations stated in the applicable prospectus supplement. Holders may exchange their units for units of smaller denominations or combined into fewer units of larger denominations, as long as the total amount is not changed.
    •
    Holders may exchange or transfer their units at the office of the unit agent. Holders may also replace lost, stolen, destroyed or mutilated units at that office. We may appoint another entity to perform these functions or perform them ourselves.
    ​
    •
    Holders will not be required to pay a service charge to transfer or exchange their units, but they may be required to pay for any tax or other governmental charge associated with the transfer or exchange. The transfer or exchange, and any replacement, will be made only if our transfer agent is satisfied with the holder’s proof of legal ownership. The transfer agent may also require an indemnity before replacing any units.
    ​
    •
    If we have the right to redeem, accelerate or settle any units before their maturity, and we exercise our right as to less than all those units or other securities, we may block the exchange or transfer of those units during the period beginning 15 days before the day we mail the notice of exercise and ending on the day of that mailing, in order to freeze the list of holders to prepare the mailing. We may also refuse to register transfers of or exchange any unit selected for early settlement, except that we will continue to permit transfers and exchanges of the unsettled portion of any unit being partially settled. We may also block the transfer or exchange of any unit in this manner if the unit includes securities that are or may be selected for early settlement.
    ​
    Only the depositary will be entitled to transfer or exchange a unit in global form, since it will be the sole holder of the unit.
    Payments and Notices
    In making payments and giving notices with respect to our units, we will follow the procedures as described in the applicable prospectus supplement.
     
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    MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S. HOLDERS
    The following is a discussion of certain material U.S. federal income tax consequences of the acquisition, ownership and disposition of our shares of common stock, which we refer to as our securities. This discussion applies only to securities that are held as capital assets for U.S. federal income tax purposes and is applicable only to holders who are receiving our securities in this offering.
    This discussion is a summary only and does not describe all of the tax consequences that may be relevant to you in light of your particular circumstances, including but not limited to the alternative minimum tax, the Medicare tax on certain investment income and the different consequences that may apply if you are subject to special rules that apply to certain types of investors (such as the effects of Section 451 of the U.S. Internal Revenue Code of 1986, as amended (the “Code”)), including but not limited to:
    •
    financial institutions or financial services entities;
    ​
    •
    broker-dealers;
    ​
    •
    governments or agencies or instrumentalities thereof;
    ​
    •
    regulated investment companies;
    ​
    •
    real estate investment trusts;
    ​
    •
    expatriates or former long-term residents of the U.S.;
    ​
    •
    persons that actually or constructively own five percent or more of our voting shares;
    ​
    •
    insurance companies;
    ​
    •
    dealers or traders subject to a mark-to-market method of accounting with respect to the securities;
    ​
    •
    persons holding the securities as part of a “straddle,” hedge, integrated transaction or similar transaction;
    ​
    •
    U.S. holders (as defined below) whose functional currency is not the U.S. dollar;
    ​
    •
    partnerships or other pass-through entities for U.S. federal income tax purposes and any beneficial owners of such entities; and
    ​
    •
    tax-exempt entities.
    ​
    This discussion is based on the Code, and administrative pronouncements, judicial decisions and final, temporary and proposed Treasury regulations as of the date hereof, which are subject to change, possibly on a retroactive basis, and changes to any of which subsequent to the date of this prospectus may affect the tax consequences described herein. This discussion does not address any aspect of state, local or non-U.S. taxation, or any U.S. federal taxes other than income taxes (such as gift and estate taxes).
    We have not sought, and will not seek, a ruling from the U.S. Internal Revenue Service (the “IRS”) as to any U.S. federal income tax consequence described herein. The IRS may disagree with the discussion herein, and its determination may be upheld by a court. Moreover, there can be no assurance that future legislation, regulations, administrative rulings or court decisions will not adversely affect the accuracy of the statements in this discussion. You are urged to consult your tax advisor with respect to the application of U.S. federal tax laws to your particular situation, as well as any tax consequences arising under the laws of any state, local or foreign jurisdiction.
    This discussion does not consider the tax treatment of partnerships or other pass-through entities or persons who hold our securities through such entities. If a partnership (or other entity or arrangement classified as a partnership or other pass-through entity for United States federal income tax purposes) is the beneficial owner of our securities, the United States federal income tax treatment of a partner or member in the partnership or other pass-through entity generally will depend on the status of the partner or member and the activities of the partnership or other pass-through entity. If you are a partner or member of a partnership or other pass-through entity holding our securities, we urge you to consult your own tax advisor.
     
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    THIS DISCUSSION IS ONLY A SUMMARY OF CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS ASSOCIATED WITH THE ACQUISITION, OWNERSHIP AND DISPOSITION OF OUR SECURITIES. EACH PROSPECTIVE INVESTOR IN OUR SECURITIES IS URGED TO CONSULT ITS OWN TAX ADVISOR WITH RESPECT TO THE PARTICULAR TAX CONSEQUENCES TO SUCH INVESTOR OF THE ACQUISITION, OWNERSHIP AND DISPOSITION OF OUR SECURITIES, INCLUDING THE APPLICABILITY AND EFFECT OF ANY UNITED STATES FEDERAL NON-INCOME, STATE, LOCAL, AND NON-U.S. TAX LAWS.
    U.S. Holders
    This section applies to you if you are a “U.S. holder.” A U.S. holder is a beneficial owner of our shares of common stock who or that is, for U.S. federal income tax purposes:
    •
    an individual who is a citizen or resident of the United States;
    ​
    •
    a corporation (or other entity taxable as a corporation) organized in or under the laws of the United States, any state thereof or the District of Columbia;
    ​
    •
    an estate the income of which is includible in gross income for U.S. federal income tax purposes regardless of its source; or
    ​
    •
    a trust, if (i) a court within the United States is able to exercise primary supervision over the administration of the trust and one or more U.S. persons (as defined in the Code) have authority to control all substantial decisions of the trust or (ii) it has a valid election in effect under Treasury Regulations to be treated as a U.S. person.
    ​
    Taxation of Distributions on our Common Stock.
    If we pay distributions in cash or other property (other than certain distributions of our stock or rights to acquire our stock) to U.S. holders of shares of our common stock, such distributions generally will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Distributions in excess of current and accumulated earnings and profits will constitute a return of capital that will be applied against and reduce (but not below zero) the U.S. holder’s adjusted tax basis in our common stock. Any remaining excess will be treated as gain realized on the sale or other disposition of the common stock and will be treated as described under “U.S. Holders — Gain or Loss on Sale, Taxable Exchange or Other Taxable Disposition of common stock” below. Dividends we pay to a U.S. holder that is a taxable corporation generally will qualify for the dividends received deduction if the requisite holding period is satisfied. With certain exceptions (including, but not limited to, dividends treated as investment income for purposes of investment interest deduction limitations), and provided certain holding period requirements are met, dividends we pay to a non-corporate U.S. holder may constitute “qualified dividends” that will be subject to tax at the maximum tax rate accorded to long-term capital gains. If the holding period requirements are not satisfied, then a corporation may not be able to qualify for the dividends received deduction and would have taxable income equal to the entire dividend amount, and non-corporate holders may be subject to tax on such dividend at regular ordinary income tax rates instead of the preferential rate that applies to qualified dividend income.
    Gain or Loss on Sale, Taxable Exchange or Other Taxable Disposition of Common Stock.
    Upon a sale or other taxable disposition of our common stock, a U.S. holder generally will recognize capital gain or loss in an amount equal to the difference between the amount realized and the U.S. holder’s adjusted tax basis in the common stock. Any such capital gain or loss generally will be long-term capital gain or loss if the U.S. holder’s holding period for the common stock so disposed of exceeds one year. If the holding period requirements are not satisfied, any gain on a sale or taxable disposition of the shares would be subject to short-term capital gain treatment and would be taxed at regular ordinary income tax rates. Long-term capital gains recognized by non-corporate U.S. holders will be eligible to be taxed at reduced rates. The deductibility of capital losses is subject to limitations.
     
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    Generally, the amount of gain or loss recognized by a U.S. holder is an amount equal to the difference between (i) the sum of the amount of cash and the fair market value of any property received in such disposition and (ii) the U.S. holder’s adjusted tax basis in its common stock so disposed of. A U.S. holder’s adjusted tax basis in its common stock generally will equal the U.S. holder’s acquisition cost for the common stock or less, in the case of a share of common stock, any prior distributions treated as a return of capital. In the case of any shares of common stock originally acquired as part of an investment unit, the acquisition cost for the share of common stock that were part of such unit would equal an allocable portion of the acquisition cost of the unit based on the relative fair market values of the components of the unit at the time of acquisition.
    Information Reporting and Backup Withholding.
    In general, information reporting requirements may apply to dividends paid to a U.S. holder and to the proceeds of the sale or other disposition of our shares of common stock, unless the U.S. holder is an exempt recipient. Backup withholding may apply to such payments if the U.S. holder fails to provide a taxpayer identification number, a certification of exempt status or has been notified by the IRS that it is subject to backup withholding (and such notification has not been withdrawn).
    Any amounts withheld under the backup withholding rules generally should be allowed as a refund or a credit against a U.S. holder’s U.S. federal income tax liability provided the required information is timely furnished to the IRS.
    Non-U.S. Holders
    This section applies to you if you are a “Non-U.S. holder.” As used herein, the term “Non-U.S. holder” means a beneficial owner of our common stock who or that is for U.S. federal income tax purposes:
    •
    a non-resident alien individual (other than certain former citizens and residents of the U.S. subject to U.S. tax as expatriates);
    ​
    •
    a foreign corporation; or
    ​
    •
    an estate or trust that is not a U.S. holder;
    ​
    but generally does not include an individual who is present in the U.S. for 183 days or more in the taxable year of disposition. If you are such an individual, you should consult your tax advisor regarding the U.S. federal income tax consequences of the acquisition, ownership or sale or other disposition of our securities.
    Taxation of Distributions on our Common Stock.
    In general, any distributions we make to a Non-U.S. holder of shares of our common stock, to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles), will constitute dividends for U.S. federal income tax purposes and, provided such dividends are not effectively connected with the Non-U.S. holder’s conduct of a trade or business within the United States, we will be required to withhold tax from the gross amount of the dividend at a rate of 30%, unless such Non-U.S. holder is eligible for a reduced rate of withholding tax under an applicable income tax treaty and provides proper certification of its eligibility for such reduced rate (usually on an IRS Form W-8BEN or W-8BEN-E). Any distribution not constituting a dividend will be treated first as reducing (but not below zero) the Non-U.S. holder’s adjusted tax basis in its shares of our common stock, and, to the extent such distribution exceeds the Non-U.S. holder’s adjusted tax basis, as gain realized from the sale or other disposition of the common stock, which will be treated as described under “Non-U.S. Holders — Gain on Sale, Taxable Exchange or Other Taxable Disposition of common stock” below. The withholding tax does not apply to dividends paid to a Non-U.S. holder who provides a Form W-8ECI, certifying that the dividends are effectively connected with the Non-U.S. holder’s conduct of a trade or business within the United States. Instead, the effectively connected dividends will be subject to regular U.S. income tax as if the Non-U.S. holder were a U.S. resident, subject to an applicable income tax treaty providing otherwise. A Non-U.S. corporation receiving effectively connected dividends may also be subject to an additional “branch profits tax” imposed at a rate of 30% (or a lower treaty rate).
     
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    Gain on Sale, Taxable Exchange or Other Taxable Disposition of Common Stock.
    A Non-U.S. holder generally will not be subject to U.S. federal income or withholding tax in respect of gain recognized on a sale, taxable exchange or other taxable disposition of our common stock, unless:
    •
    the gain is effectively connected with the conduct of a trade or business by the Non-U.S. holder within the United States (and, under certain income tax treaties, is attributable to a United States permanent establishment or fixed base maintained by the Non-U.S. holder); or
    ​
    •
    we are or have been a “U.S. real property holding corporation” for U.S. federal income tax purposes at any time during the shorter of the five-year period ending on the date of disposition or the period that the Non-U.S. holder held our common stock, and, in the case where shares of our common stock are regularly traded on an established securities market, the Non-U.S. holder has owned, directly or constructively, more than 5% of our common stock at any time within the shorter of the five-year period preceding the disposition or such Non-U.S. holder’s holding period for the shares of our common stock.
    ​
    Unless an applicable treaty provides otherwise, gain described in the first bullet point above will be subject to tax at generally applicable U.S. federal income tax rates as if the Non-U.S. holder were a U.S. resident. Any gains described in the first bullet point above of a Non-U.S. holder that is a foreign corporation may also be subject to an additional “branch profits tax” at a 30% rate (or lower treaty rate). If the second bullet point above applies to a Non-U.S. holder, gain recognized by such holder on the sale, exchange or other disposition of our common stock will be subject to tax at generally applicable U.S. federal income tax rates.
    Information Reporting and Backup Withholding.
    Information returns will be filed with the IRS in connection with payments of dividends and the proceeds from a sale or other disposition of our shares of common stock. A Non-U.S. holder may have to comply with certification procedures to establish that it is not a United States person in order to avoid information reporting and backup withholding requirements. The certification procedures required to claim a reduced rate of withholding under a treaty will satisfy the certification requirements necessary to avoid the backup withholding as well. The amount of any backup withholding from a payment to a Non-U.S. holder will be allowed as a credit against such holder’s U.S. federal income tax liability and may entitle such holder to a refund, provided that the required information is timely furnished to the IRS.
    FATCA Withholding Taxes.
    Provisions commonly referred to as “FATCA” impose withholding of 30% on payments of dividends on our common stock to “foreign financial institutions” ​(which is broadly defined for this purpose and in general includes investment vehicles) and certain other Non-U.S. entities unless various U.S. information reporting and due diligence requirements (generally relating to ownership by U.S. persons of interests in or accounts with those entities) have been satisfied by, or an exemption applies to, the payee (typically certified as to by the delivery of a properly completed IRS Form W-8BEN-E). Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules. Under certain circumstances, a Non-U.S. holder might be eligible for refunds or credits of such withholding taxes, and a Non-U.S. holder might be required to file a U.S. federal income tax return to claim such refunds or credits. Prospective investors should consult their tax advisers regarding the effects of FATCA on their investment in our securities.
     
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    PLAN OF DISTRIBUTION
    We may sell the securities offered through this prospectus and any accompanying prospectus supplement, if required, in any of the following ways: (i) to or through underwriters or dealers, (ii) directly to purchasers, including our affiliates, (iii) through agents, (iv) in an “at the market offering,” within the meaning of Rule 415(a)(4) of the Securities Act or (v) through a combination of any of these methods or any other method permitted by law. The securities may be distributed at a fixed price or prices, which may be changed, market prices prevailing at the time of sale, prices related to the prevailing market prices, or negotiated prices, either:
    •
    on or through the facilities of The Nasdaq Global Select Market or any other securities exchange or quotation or trading service on which such securities may be listed, quoted or traded at the time of sale; and/or
    ​
    •
    to or through a market maker otherwise than on The Nasdaq Global Select Market or such other securities exchanges or quotation or trading services.
    ​
    In addition, we may issue the securities as a dividend or distribution or in a subscription rights offering to our existing security holders.
    We may directly solicit offers to purchase securities, or agents may be designated to solicit such offers. In the prospectus supplement relating to such offering, we will name any agent that could be viewed as an underwriter under the Securities Act and describe any commissions that we must pay to any such agent. Any such agent will be acting on a best efforts basis for the period of its appointment or, if indicated in the applicable prospectus supplement, on a firm commitment basis. This prospectus may be used in connection with any offering of our securities through any of these methods or other methods described in the applicable prospectus supplement.
    Each prospectus supplement will describe the method of distribution of the securities and any applicable restrictions.
    The prospectus supplement with respect to the securities of a particular series will describe the terms of the offering of the securities, including the following:
    •
    the name of the agent or any underwriters;
    ​
    •
    the public offering or purchase price;
    ​
    •
    any discounts and commissions to be allowed or paid to the agent or underwriters;
    ​
    •
    all other items constituting underwriting compensation;
    ​
    •
    any discounts and commissions to be allowed or paid to dealers; and
    ​
    •
    any exchanges on which the securities will be listed.
    ​
    If any underwriters or agents are used in the sale of the securities in respect of which this prospectus is delivered, we will enter into an underwriting agreement, sales agreement or other agreement with them at the time of sale to them, and we will set forth in the prospectus supplement relating to such offering the names of the underwriters or agents and the terms of the related agreement with them.
    In connection with the offering of securities, we may grant to the underwriters an option to purchase additional securities with an additional underwriting commission, as may be set forth in the accompanying prospectus supplement. If we grant any such option, the terms of such option will be set forth in the prospectus supplement for such securities.
    If a dealer is used in the sale of the securities in respect of which the prospectus is delivered, we will sell such securities to the dealer, as principal. The dealer, who may be deemed to be an “underwriter” as that term is defined in the Securities Act, may then resell such securities to the public at varying prices to be determined by such dealer at the time of resale.
     
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    If we offer securities in a subscription rights offering to our existing security holders, we may enter into a standby underwriting agreement with dealers, acting as standby underwriters. We may pay the standby underwriters a commitment fee for the securities they commit to purchase on a standby basis. If we do not enter into a standby underwriting arrangement, we may retain a dealer-manager to manage a subscription rights offering for us.
    Agents, underwriters, dealers and other persons may be entitled under agreements which they may enter into with us to indemnification by us against certain civil liabilities, including liabilities under the Securities Act, and may be customers of, engage in transactions with or perform services for us in the ordinary course of business.
    If so indicated in the applicable prospectus supplement, we will authorize underwriters or other persons acting as our agents to solicit offers by certain institutions to purchase securities from us pursuant to delayed delivery contracts providing for payment and delivery on the date stated in the prospectus supplement. Each contract will be for an amount not less than, and the aggregate amount of securities sold pursuant to such contracts shall not be less nor more than, the respective amounts stated in the prospectus supplement. Institutions with whom the contracts, when authorized, may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and other institutions, but shall in all cases be subject to our approval. Delayed delivery contracts will not be subject to any conditions except that:
    •
    the purchase by an institution of the securities covered under that contract shall not at the time of delivery be prohibited under the laws of the jurisdiction to which that institution is subject; and
    ​
    •
    if the securities are also being sold to underwriters acting as principals for their own account, the underwriters shall have purchased such securities not sold for delayed delivery. The underwriters and other persons acting as our agents will not have any responsibility in respect of the validity or performance of delayed delivery contracts.
    ​
    Offered securities may also be offered and sold, if so indicated in the prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreement, if any, with us and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters in connection with their remarketing of offered securities.
    Certain agents, underwriters and dealers, and their associates and affiliates, may be customers of, have borrowing relationships with, engage in other transactions with, or perform services, including investment banking services, for us or one or more of our respective affiliates in the ordinary course of business.
    Certain underwriters may use this prospectus and any accompanying prospectus supplement for offers and sales related to market-making transactions in the securities. These underwriters may act as principal or agent in these transactions, and the sales will be made at prices related to prevailing market prices at the time of sale. Any underwriters involved in the sale of the securities may qualify as “underwriters” within the meaning of Section 2(a)(11) of the Securities Act. In addition, the underwriters’ commissions, discounts or concessions may qualify as underwriters’ compensation under the Securities Act and the rules of the Financial Industry Regulatory Authority.
    In order to facilitate the offering of the securities, any underwriters may engage in transactions that stabilize, maintain or otherwise affect the price of the securities or any other securities the prices of which may be used to determine payments on such securities. Specifically, any underwriters may over allot in connection with the offering, creating a short position for their own accounts. In addition, to cover overallotments or to stabilize the price of the securities or of any such other securities, the underwriters may bid for, and purchase, the securities or any such other securities in the open market. Finally, in any offering of the securities through a syndicate of underwriters, the underwriting syndicate may reclaim selling concessions allowed to an underwriter or a dealer for distributing the securities in the offering if the syndicate repurchases previously distributed securities in transactions to cover syndicate short positions, in stabilization transactions or otherwise. Any of these activities may stabilize or maintain the market price of
     
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    the securities above independent market levels. Any such underwriters are not required to engage in these activities and may end any of these activities at any time.
    We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement so indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in the applicable prospectus supplement (or a post-effective amendment). In addition, we may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.
    Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. The applicable prospectus supplement may provide that the original issue date for your securities may be more than one scheduled business day after the trade date for your securities. Accordingly, in such a case, if you wish to trade securities on any date prior to the first business day before the original issue date for your securities, you will be required, by virtue of the fact that your securities initially are expected to settle in more than one scheduled business day after the trade date for your securities, to make alternative settlement arrangements to prevent a failed settlement.
    The securities may be new issues of securities and may have no established trading market. The securities may or may not be listed on a national securities exchange. We can make no assurance as to the liquidity of or the existence of trading markets for any of the securities.
    The specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.
    Any underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for which they receive compensation.
    The anticipated date of delivery of offered securities will be set forth in the applicable prospectus supplement relating to each offer.
     
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    LEGAL MATTERS
    Unless the applicable prospectus supplement indicates otherwise, the validity of the securities in respect of which this prospectus is being delivered will be passed upon by Goodwin Procter LLP, Boston, Massachusetts. Any underwriters will also be advised about the validity of the securities and other legal matters by their own counsel, which will be named in the prospectus supplement.
    EXPERTS
    The financial statements incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2024 have been so incorporated in reliance on the report (which contains an emphasis of matter paragraph related to the Company’s requirement for additional capital to fund operations as described in Note 1 to the financial statements) of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.
    WHERE YOU CAN FIND MORE INFORMATION
    This prospectus is part of a registration statement on Form S-3 that we filed with the SEC. This prospectus and the applicable prospectus supplement do not contain all of the information set forth in the registration statement and its exhibits and schedules in accordance with SEC rules and regulations. For further information with respect to us and the securities being offered by this prospectus and the applicable prospectus supplement, you should read the registration statement of which this prospectus is a part, including its exhibits and schedules. Statements contained in this prospectus and any applicable prospectus supplement, including documents that we have incorporated by reference, as to the contents of any contract or other document referred to are not necessarily complete, and, with respect to any contract or other document filed as an exhibit to the registration statement or any other such document, each such statement is qualified in all respects by reference to the corresponding exhibit. You should review the complete contract or other document to evaluate these statements. You may obtain copies of the registration statement and its exhibits via the SEC’s EDGAR database or our website.
    We file annual, quarterly and current reports, proxy statements and other documents with the SEC under the Exchange Act. The SEC maintains a website that contains reports, proxy and information statements and other information regarding issuers, including us, that file electronically with the SEC. You may obtain documents that we file with the SEC at www.sec.gov. We also make these documents available on our website at www.blackdiamondtherapeutics.com. Information contained in, or that can be accessed through, our website is not a part of this prospectus and is not incorporated by reference in this prospectus.
    We have the authority to designate and issue more than one class or series of stock having various preferences, conversion and other rights, voting powers, restrictions, limitations as to dividends, qualifications, and terms and conditions of redemption. See “Description of Capital Stock.” We will furnish a full statement of the relative rights and preferences of each class or series of our stock which has been so designated and any restrictions on the ownership or transfer of our stock to any stockholder upon request and without charge. Written requests for such copies should be directed to Black Diamond Therapeutics, Inc., One Main Street, 14th Floor, Cambridge, MA 02142, Attention: Corporate Secretary.
     
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    INCORPORATION BY REFERENCE
    The SEC allows us to incorporate by reference much of the information we file with it, which means that we can disclose important information to you by referring you to those publicly available documents. The information that we incorporate by reference in this prospectus is considered to be part of this prospectus. Because we are incorporating by reference future filings with the SEC, this prospectus is continually updated and those future filings may modify or supersede some of the information included or incorporated in this prospectus. This means that you must look at all of the SEC filings that we incorporate by reference to determine if any of the statements in this prospectus or in any document previously incorporated by reference have been modified or superseded. This prospectus incorporates by reference the documents listed below, which we have already filed with the SEC (SEC File No. 001-39200), and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, including all filings made after the date of the filing of this registration statement and prior to the effectiveness of this registration statement, except as to any portion of any future report or document that is not deemed filed under such provisions, until we sell all of the securities:
    •
    Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 6, 2025;
    ​
    •
    The information specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2024, from our definitive proxy statement on Schedule 14A (other than information furnished rather than filed), which was filed with the SEC on April 18, 2025;
    ​
    •
    Quarterly Reports on Form 10-Q filed with the SEC for the quarters ended March 31, 2025, June 30, 2025, and September 30, 2025, filed with the SEC on May 12, 2025, August 7, 2025, and November 6, 2025, respectively;
    ​
    •
    Current Reports on Form 8-K filed with the SEC on March 19, 2025 and June 12, 2025 (to the extent the information in any such reports is filed and not furnished); and
    ​
    •
    The description of our common stock contained in our Registration Statement on Form 8-A (File No. 001-39200), filed with the SEC under Section 12(b) of the Exchange Act, on January 27, 2020, including any amendments or reports filed for the purpose of updating such description, including Exhibit 4.3 to our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 12, 2024.
    ​
    Upon request, either orally or in writing, we will provide, without charge, to each person, including any beneficial owner, to whom a copy of this prospectus is delivered, a copy of the documents incorporated by reference into this prospectus but not delivered with the prospectus. You may request a copy of these filings, and any exhibits we have specifically incorporated by reference as an exhibit in this prospectus, at no cost by writing or telephoning us at the following address or telephone number:
    Black Diamond Therapeutics, Inc.
    One Main Street, 14th Floor
    Cambridge, MA 02142
    (617) 252-0848
    You may also access these documents, free of charge on the SEC’s website at www.sec.gov or on our website at www.blackdiamondtherapeutics.com. Information contained in or accessible through our website does not constitute a part of this prospectus and is not incorporated by reference into this prospectus. We have included our website solely as an inactive textual reference.
    Notwithstanding the foregoing, unless specifically stated to the contrary, information that we furnish (and that is not deemed “filed” with the SEC) under Items 2.02 and 7.01 of any Current Report on Form 8-K, including the related exhibits under Item 9.01, is not incorporated by reference into this prospectus or the registration statement of which this prospectus is a part.
    This prospectus is part of a registration statement we filed with the SEC. We have incorporated exhibits into this registration statement. You should read the exhibits carefully for provisions that may be important to you.
     
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    You should rely only on the information incorporated by reference or provided in this prospectus or any prospectus supplement. We have not authorized anyone to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this prospectus or in the documents incorporated by reference is accurate as of any date other than the date on the front of this prospectus or those documents.
     
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    ​
    ​
    [MISSING IMAGE: lg_blackdiamond-4c.jpg]
    $500,000,000
    Common Stock
    Preferred Stock
    Debt Securities
    Warrants
    Units
    ​
    PROSPECTUS
    ​
               , 2025
    We have not authorized any dealer, salesperson or other person to give any information or represent anything not contained in this prospectus. You must not rely on any unauthorized information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus does not offer to sell any securities in any jurisdiction where it is unlawful. Neither the delivery of this prospectus, nor any sale made hereunder, shall create any implication that the information in this prospectus is correct after the date hereof.
    ​
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    The information in this preliminary prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor does it seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.
    SUBJECT TO COMPLETION, DATED NOVEMBER 13, 2025
    PROSPECTUS
    [MISSING IMAGE: lg_blackdiamond-4c.jpg]
    Up to $150,000,000 of Shares of
    Common Stock
    ​
    We previously entered into an Open Market Sale AgreementSM (the “Sales Agreement”) with Jefferies LLC (“Jefferies”), dated February 1, 2021, relating to the sale of shares of our common stock, par value $0.0001 per share (“common stock”), offered by this prospectus. In accordance with the terms of the Sales Agreement, pursuant to this prospectus, we may offer and sell shares of our common stock having an aggregate offering price of up to $150,000,000 from time to time through Jefferies, acting as sales agent or principal.
    Our common stock is listed on The Nasdaq Global Select Market under the symbol “BDTX.” On November 11, 2025, the closing price of our common stock, as reported on The Nasdaq Global Select Market, was $4.62 per share.
    Sales of our common stock, if any, under this prospectus may be made in sales deemed to be an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended (the “Securities Act”). Jefferies is not required to sell any specific number or dollar amount of securities, but will act as our sales agent or principal on a best efforts basis and use commercially reasonable efforts to sell on our behalf all of the shares of common stock requested to be sold by us, consistent with its normal trading and sales practices, on mutually agreed terms between us and Jefferies. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.
    Jefferies will be entitled to compensation at a fixed commission rate of up to 3.0% of the gross sales price per common share sold under the Sales Agreement. See “Plan of Distribution” beginning on page S-15 for additional information regarding the compensation to be paid to Jefferies. In connection with the sale of our common stock on our behalf, Jefferies will be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of Jefferies will be deemed to be underwriting commissions or discounts. We have also agreed to provide indemnification and contribution to Jefferies with respect to certain liabilities, including liabilities under the Securities Act or the Securities Exchange Act of 1934, as amended (the “Exchange Act”).
    We are an “emerging growth company” and a “smaller reporting company” under the federal securities laws and, as such, are subject to certain reduced public company reporting requirements. See “Prospectus Summary — Implications of Being an Emerging Growth Company and a Smaller Reporting Company.”
    ​
    Investing in our common stock involves a high degree of risk. See the information contained under “Risk Factors” beginning on page 6 of this prospectus and under similar headings in the other documents incorporated by reference herein.
    Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
    Jefferies
    ​
    The date of this prospectus is            , 2025.

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    TABLE OF CONTENTS
    Prospectus
    ​ ​ ​
    Page
    ​
    ABOUT THIS PROSPECTUS
    ​ ​ ​ ​ S-1 ​ ​
    PROSPECTUS SUMMARY
    ​ ​ ​ ​ S-3 ​ ​
    THE OFFERING
    ​ ​ ​ ​ S-5 ​ ​
    RISK FACTORS
    ​ ​ ​ ​ S-6 ​ ​
    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    ​ ​ ​ ​ S-8 ​ ​
    USE OF PROCEEDS
    ​ ​ ​ ​ S-11 ​ ​
    DILUTION
    ​ ​ ​ ​ S-12 ​ ​
    DIVIDEND POLICY
    ​ ​ ​ ​ S-14 ​ ​
    PLAN OF DISTRIBUTION
    ​ ​ ​ ​ S-15 ​ ​
    LEGAL MATTERS
    ​ ​ ​ ​ S-16 ​ ​
    EXPERTS
    ​ ​ ​ ​ S-16 ​ ​
    WHERE YOU CAN FIND MORE INFORMATION
    ​ ​ ​ ​ S-16 ​ ​
    INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
    ​ ​ ​ ​ S-17 ​ ​
    We are responsible for the information contained and incorporated by reference in this prospectus, in any accompanying prospectus supplement, and in any related free writing prospectus we prepare or authorize. We have not, and Jefferies has not, authorized anyone to give you any other information, and neither we nor Jefferies take any responsibility for any other information that others may give you. If you are in a jurisdiction where offers to sell, or solicitations of offers to purchase, the securities offered by this documentation are unlawful, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this document does not extend to you. The information contained in this document speaks only as of the date of this document, unless the information specifically indicates that another date applies. Our business, financial condition, results of operations and prospects may have changed since those dates.
     

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    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 process. Under this shelf registration process, we may sell any combination of the securities described in the base prospectus included in the shelf registration statement in one or more offerings. Under this prospectus, we may offer shares of our common stock having an aggregate offering price of up to $150,000,000 from time to time at prices and on terms to be determined by market conditions at the time of offering. The $150,000,000 of shares of our common stock that may be sold under this prospectus are included in the $500,000,000 of our securities that may be sold under the registration statement.
    This prospectus relates to the offering of our common stock. Before buying any of the shares of our common stock offered hereby, we urge you to carefully read this prospectus, together with the information incorporated by reference in this prospectus, and any free writing prospectus or prospectus supplement that we have authorized for use in connection with this offering when making your investment decision. You should also read and consider the information in the documents we have referred you to under the headings “Where You Can Find More Information” and “Incorporation of Certain Documents by Reference.” These documents contain important information that you should consider when making your investment decision.
    This prospectus describes the terms of this offering of common stock and also adds to and updates information contained in the documents incorporated by reference into this prospectus. To the extent there is a conflict between the information contained in this prospectus, on the one hand, and the information contained in any document incorporated by reference into this prospectus that was filed with the SEC before the date of this prospectus, on the other hand, you should rely on the information in this prospectus. If any statement in one of these documents is inconsistent with a statement in another document having a later date — for example, a document incorporated by reference into this prospectus — the statement in the document having the later date modifies or supersedes the earlier statement. You should rely only on the information contained in or incorporated by reference in this prospectus, and any free writing prospectus or prospectus supplement that we have authorized for use in connection with this offering. We have not, and the sales agent has not, authorized anyone to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and the sales agent is not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted.
    You should assume that the information appearing in this prospectus, the documents incorporated by reference in this prospectus, and any free writing prospectus or prospectus supplement that we have authorized for use in connection with this offering, is accurate only as of the date of those respective documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should read this prospectus, the documents incorporated by reference in this prospectus, and any free writing prospectus or prospectus supplement that we have authorized for use in connection with this offering, in their entirety before making an investment decision. This prospectus and the information incorporated by reference herein contain market data, industry statistics and other data that have been obtained or compiled from information made available by independent third parties. We are responsible for all of the disclosures contained in this prospectus, and we believe that these sources are reliable; however, we have not independently verified the information contained in such publications.
    We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.
    As used in this prospectus, unless the context suggests otherwise, all references to “us,” “our,” “Black Diamond,” “Black Diamond Therapeutics,” “we,” the “Company” and similar designations refer to Black Diamond Therapeutics, Inc., a Delaware corporation, and, where appropriate, our wholly-owned subsidiary. We have applied for various trademarks and trade names, including without limitation our corporate name
     
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    and logo, that we use in connection with the operation of our business. This prospectus, any applicable prospectus supplement and the information incorporated herein or therein by reference may also contain trademarks, service marks and trade names of third parties, which are the property of their respective owners. Our use or display of third parties’ trademarks, service marks, trade names or products in this prospectus is not intended to, and does not imply a relationship with, or endorsement or sponsorship by us. Solely for convenience, the trademarks, service marks and trade names referred to or incorporated by reference in this prospectus, any applicable prospectus supplement or any free writing prospectus may appear without the ®, ™ or SM symbols, but the omission of such references is not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner of these trademarks, service marks and trade names will not assert, to the fullest extent under applicable law, its rights.
     
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    PROSPECTUS SUMMARY
    This summary highlights certain information about us, this offering and selected information contained elsewhere in or incorporated by reference into this prospectus. This summary is not complete and does not contain all of the information that you should consider before deciding whether to invest in our common stock. For a more complete understanding of our company and this offering, we encourage you to read and consider carefully the more detailed information in this prospectus, including the information incorporated by reference in this prospectus, and the information included in any free writing prospectus that we have authorized for use in connection with this offering, including the information under the heading “Risk Factors” in this prospectus on page S-6 and under similar headings in the documents incorporated by reference into this prospectus.
    Our Company
    We are a clinical-stage oncology company developing MasterKey therapies that target families of oncogenic mutations in patients with cancer. The foundation of our company is built upon a deep understanding of cancer genetics, onco-protein structure and function, and medicinal chemistry. Our MasterKey therapies are designed to address a broad spectrum of genetically defined tumors, overcome resistance, minimize wild-type mediated toxicities, and be brain-penetrant to treat central nervous system disease. Our compounds target families of oncogenic mutations in clinically validated pathways. Our lead clinical-stage program, silevertinib (formerly BDTX-1535), is a brain-penetrant, fourth-generation epidermal growth factor receptor (“EGFR”) MasterKey inhibitor targeting epidermal growth factor receptor mutant (“EGFRm”) non-small cell lung cancer (“NSCLC”) and glioblastoma (“GBM”). In March 2025, we announced a global licensing agreement with Servier Pharmaceuticals LLC (“Servier”) for our second clinical-stage asset, BDTX-4933, a potential best-in-class targeted therapy for RAF/RAS-mutant solid tumors, and received an upfront payment of $70.0 million.
    We believe that our clinical-stage lead product candidate, silevertinib, has the potential to treat newly diagnosed patients with EGFRm NSCLC, as well as those with recurrent disease, based upon silevertinib’s ability to address greater than 50 classical and non-classical oncogenic driver mutations with greater potency than other EGFR tyrosine kinase inhibitors, as well as uniquely target the C797S resistance mutation which can be acquired after treatment with osimertinib. Silevertinib was shown to be well tolerated and achieve durable clinical responses in our Phase 1 trial in patients with recurrent EGFRm NSCLC whose tumors expressed a range of mutation subtypes, including the acquired C797S resistance mutation and a broad spectrum of non-classical mutations. We are currently evaluating silevertinib in a Phase 2 clinical trial in patients with EGFRm NSCLC in both the recurrent setting (cohorts 1 and 2) and the frontline setting (cohort 3).
    Enrollment in frontline patients harboring non-classical EGFR mutations (cohort 3, n=43) was completed in July 2025, and we are on track to announce initial results from this cohort in the fourth quarter of 2025. We plan to solicit U.S. Food and Drug Administration feedback on a potential registrational path in frontline EGFRm NSCLC in the first half of 2026, when progression free survival data from the ongoing Phase 2 trial is anticipated. We are also continuing to explore potential partnership opportunities to advance silevertinib into pivotal development.
    Corporate History and Information
    We were originally organized as a limited liability company in December 2014 under the name ASET Therapeutics LLC, and we converted to a corporation in September 2016 under the laws of the State of Delaware under the name ASET Therapeutics, Inc. On January 2, 2018, we changed our name to Black Diamond Therapeutics, Inc.
    Our principal executive offices are located at One Main Street, 14th Floor, Cambridge, MA 02142, and our telephone number is (617) 252-0848. We have one subsidiary, Black Diamond Therapeutics Security Corporation, which was incorporated in 2019. Our website address is www.blackdiamondtherapeutics.com. The information contained in, or that can be accessed through, our website, does not constitute a part of this prospectus, and is not incorporated by reference in this prospectus or in any filings we make with the SEC. We have included our website address in this prospectus solely as an inactive textual reference. Our common stock trades on The Nasdaq Global Select Market under the symbol “BDTX.”
     
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    Implications of Being an Emerging Growth Company and a Smaller Reporting Company
    We qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012, as amended (the “JOBS Act”). As an emerging growth company, we may take advantage of specified reduced disclosure and other requirements that are otherwise applicable generally to public companies. These provisions include:
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    reduced disclosure about our executive compensation arrangements;
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    not being required to hold advisory votes on executive compensation or to obtain stockholder approval of any golden parachute arrangements not previously approved;
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    an exemption from the auditor attestation requirement in the assessment of our internal control over financial reporting; and
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    an exemption from compliance with the requirements of the Public Company Accounting Oversight Board regarding the communication of critical audit matters in the auditor’s report on the financial statements.
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    We may take advantage of these exemptions until the fifth anniversary of our initial public offering (our “IPO”) or such earlier time that we are no longer an emerging growth company. We would cease to be an emerging growth company on the date that is the earliest of (i) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more; (ii) the last day of our fiscal year following the fifth anniversary of the date of the completion of our IPO; (iii) the date on which we have issued more than $1.0 billion in nonconvertible debt during the previous three years; or (iv) the last day of the fiscal year in which we are deemed to be a large accelerated filer under the rules of the SEC, which means the market value of our common stock that is held by non-affiliates exceeds $700 million as of the prior June 30th. We may choose to take advantage of some but not all of these exemptions. We have taken advantage of reduced reporting requirements in this prospectus. Accordingly, the information contained herein may be different from the information you receive from other public companies in which you hold stock. Additionally, the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. This allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to avail ourselves of this exemption and, therefore, while we are an emerging growth company, we will not be subject to new or revised accounting standards at the same time that they become applicable to other public companies that are not emerging growth companies. As a result of this election, our financial statements may not be comparable to those of other public companies that comply with new or revised accounting pronouncements as of public company effective dates. We may choose to early adopt any new or revised accounting standards whenever such early adoption is permitted for private companies.
    We are also a “smaller reporting company” as defined in the Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies until the fiscal year following the determination that our stock held by non-affiliates is more than $250 million measured on the last business day of our second fiscal quarter, or our annual revenues are more than $100 million during the most recently completed fiscal year and our stock held by non-affiliates is more than $700 million measured on the last business day of our second fiscal quarter.
    Effective as of December 31, 2025, the fifth anniversary of the closing of our IPO, we will no longer qualify as an “emerging growth company.” As a result, commencing with our Annual Report on Form 10-K for the fiscal year ending December 31, 2025, we will no longer be eligible to take advantage of certain exemptions from various reporting requirements that are applicable to emerging growth companies.
     
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    THE OFFERING
    Common stock offered by us
    Shares of our common stock having an aggregate offering price of up to $150,000,000.
    Common stock to be
    outstanding immediately after this offering
    Up to 89,410,945 shares (as more fully described in the notes following this table), assuming sales of 32,467,532 shares of our common stock in this offering at an offering price of $4.62 per share, which was the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025. The actual number of shares of our common stock issued will vary depending on the sales price under this offering.
    Manner of offering
    “At the market offering” that may be made from time to time on The Nasdaq Global Select Market or other existing trading market for our common stock through or to Jefferies LLC, as our sales agent or principal. See “Plan of Distribution” on page S-15 of this prospectus.
    Use of proceeds
    Our management will retain broad discretion regarding the allocation and use of any net proceeds. We currently intend to use the net proceeds from this offering, together with our existing cash, cash equivalents and investments, primarily to fund research and development and clinical development to support the advancement of current or future product candidates, and the remainder for working capital, capital expenditures, and other general corporate purposes. See “Use of Proceeds” on page S-11 of this prospectus.
    Risk factors
    Investing in our common stock involves risks. See “Risk Factors” beginning on page S-6 of this prospectus and under similar headings in the documents incorporated by reference herein for a discussion of the factors you should carefully consider before deciding to invest in our common stock.
    Nasdaq Global Select Market symbol
    “BDTX”
    All information in this prospectus related to the number of shares of our common stock to be outstanding immediately after this offering is based on 56,943,413 shares of our common stock outstanding as of September 30, 2025. The number of shares outstanding as of September 30, 2025, as used throughout this prospectus, unless otherwise indicated, excludes:
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    9,749,471 shares of common stock issuable upon the exercise of stock options outstanding as of September 30, 2025, at a weighted average exercise price of $5.81 per share;
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    670,000 shares of common stock issuable upon the vesting of restricted share units outstanding as of September 30, 2025;
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    10,757 shares of common stock issuable upon the exercise of warrants outstanding as of September 30, 2025, at an exercise price of $3.02 per share;
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    5,924,424 shares of common stock reserved for future issuance under our 2020 Stock Option and Incentive Plan (the “2020 Plan”) as of September 30, 2025, as well as any automatic increases in the number of shares of common stock reserved for issuance under the 2020 Plan; and
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    1,690,512 shares of common stock reserved for future issuance under our 2020 Employee Stock Purchase Plan (the “2020 ESPP”) as of September 30, 2025, as well as any automatic increases in the number of shares of common stock reserved for issuance under the 2020 ESPP.
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    Unless otherwise stated, all information contained in this prospectus assumes no exercise of stock options or warrants, vesting of restricted common stock, or issuances of shares under the 2020 ESPP after September 30, 2025, and reflects an assumed public offering price of $4.62, which was the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025.
     
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    RISK FACTORS
    Investing in our common stock involves a high degree of risk. Before you decide to invest in our common stock, you should carefully review the risks and uncertainties described below and under the section titled “Risk Factors” in our most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, as well as any amendments thereto reflected in subsequent filings with the SEC, each of which are incorporated by reference in this prospectus, and all of the other information in this prospectus, including our financial statements and related notes incorporated by reference herein. If any of the following risks and uncertainties actually occurs, our business, financial condition, results of operations and prospects could be materially and adversely affected, which, in turn, could have a negative impact on the price of our common stock. In that event, the trading price of our common stock could decline, and you may lose part or all of your investment. The risks and uncertainties summarized and described below are not intended to be exhaustive and are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently believe are immaterial may also significantly impair our business, prospects, financial condition and results of operations. Certain statements in this prospectus are forward-looking statements. Please also see the section entitled “Special Note Regarding Forward-Looking Statements.”
    Additional Risks Related to This Offering and Our Common Stock
    If you purchase shares of our common stock in this offering, you may suffer immediate and substantial dilution of your investment.
    The price per share of any common stock sold in this offering may exceed the net tangible book value per share of our common stock outstanding prior to this offering. Therefore, if you purchase shares of our common stock in this offering, you may pay a price per share that substantially exceeds our net tangible book value per share after this offering. To the extent shares are issued under outstanding options at exercise prices lower than the price of our common stock in this offering, you will incur further dilution. Assuming that an aggregate of 32,467,532 shares of our common stock are sold at a price of $4.62 per share, the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025, for aggregate gross proceeds to us of $150.0 million, and after deducting commissions and estimated aggregate offering expenses payable by us, you will experience immediate dilution of $1.57 per share, representing the difference between our as-adjusted net tangible book value per share as of September 30, 2025 after giving effect to this offering, and the assumed offering price. See the section entitled “Dilution” below for a more detailed illustration of the dilution you would incur if you participate in this offering.
    We have broad discretion in the use of the net proceeds from this offering and may not use them effectively.
    We currently expect to use any net proceeds of this offering to primarily fund research and development and clinical development to support the advancement of current or future product candidates, and the remainder for working capital, capital expenditures and other general corporate purposes. Pending the use of net proceeds, we may invest the net proceeds in short-term, investment-grade, interest bearing obligations, certificates of deposit or direct or guaranteed obligations of the United States government. Because of the number and variability of factors that will determine our use of any net proceeds from this offering, their ultimate use may vary substantially from their currently intended use. Our management will have broad discretion in the application of the net proceeds from this offering and you will not have the opportunity as part of your investment decision to assess whether the net proceeds are being used appropriately. Our management might not spend the net proceeds in ways that improve our results of operations or enhance the value of our common stock. The failure by our management to apply these funds effectively could result in financial losses that could have a material adverse effect on our business, cause the price of our common stock to decline and delay the development of our product candidates. Pending their use, we may invest the net proceeds from this offering in a manner that does not produce income or that loses value. See the section entitled “Use of Proceeds” for more information.
    Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans, could result in additional dilution of the percentage ownership of our stockholders and could cause our stock price to fall.
    We may seek additional capital through a combination of public and private equity offerings, debt financings, strategic partnerships and alliances and licensing arrangements. To the extent that we raise
     
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    additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms may include liquidation or other preferences that adversely affect your rights as a stockholder. The incurrence of indebtedness would result in increased fixed payment obligations and could involve certain restrictive covenants, such as limitations on our ability to incur additional debt, limitations on our ability to acquire or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. If we raise additional funds through strategic partnerships and alliances and licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies or product candidates, or grant licenses on terms unfavorable to us.
    Future sales or issuances of a significant number of shares of our common stock in the public market, or the perception that such sales could occur, could depress the market price of our common stock.
    Sales of a substantial number of shares of our common stock or other securities convertible into or exchangeable for our common stock in the public market, or the perception that such sales could occur, could depress the market price of our common stock and impair our ability to raise capital through the sale of additional equity securities. We may sell large quantities of our common stock at any time pursuant to this prospectus or in one or more separate offerings. We cannot predict the effect that future sales of our common stock or other equity-related securities would have on the market price of our common stock.
    Because we do not anticipate paying any cash dividends on our capital stock in the foreseeable future, capital appreciation, if any, will be your sole source of gain.
    We have never declared or paid cash dividends on shares of our common stock. We currently anticipate that we will retain future earnings for the development, operation, and growth of our business and do not anticipate declaring or paying any cash dividends for the foreseeable future. In addition, we may enter into agreements that prohibit us from paying cash dividends without prior written consent from our contracting parties, or which contain other terms prohibiting or limiting the amount of dividends that may be declared or paid on our common stock. Any return to stockholders would therefore be limited to the appreciation of their stock, which may never occur.
    The shares of common stock offered hereby will be sold in “at the market” offerings, and investors who buy shares at different times will likely pay different prices.
    Investors who purchase shares in this offering at different times will likely pay different prices, and accordingly may experience different levels of dilution and different outcomes in their investment results. We will have discretion, subject to market demand, to vary the timing, prices and number of shares sold in this offering. In addition, subject to the final determination by our board of directors or any restrictions we may place in any applicable placement notice, there is no minimum or maximum sales price for shares to be sold in this offering. Investors may experience a decline in the value of the shares they purchase in this offering as a result of sales made at prices lower than the prices they paid.
    The actual number of shares we may issue under the Sales Agreement and gross proceeds resulting from those sales, at any one time or in total, is uncertain.
    Subject to certain limitations in the Sales Agreement and compliance with applicable law, we have the discretion to deliver placement notices to Jefferies at any time throughout the term of the Sales Agreement. The number of shares that are sold by Jefferies after delivering a placement notice will fluctuate based on the market price of our common stock during the sales period and limits we set with Jefferies in any instruction to sell shares, and the demand for our common stock during the sales period. Because the price per share of each share sold will fluctuate based on the market price of our common stock during the sales period, it is not possible at this stage to predict the number of shares or the gross proceeds to be raised in connection with those sales, if any, that will be ultimately issued.
     
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    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    This prospectus and the information and documents incorporated by reference herein, contain forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. Any statements about our expectations, beliefs, plans, objectives, assumptions or future events or performance are not historical facts and may be forward-looking. These statements are often, but are not always, made through the use of words or phrases such as “may,” “will,” “could,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects,” “potential,” “continue,” or the negative of these terms or other comparable terminology. Accordingly, these statements involve estimates, assumptions, risks and uncertainties which could cause actual results to differ materially from those expressed in them. Any forward-looking statements are qualified in their entirety by reference to the factors discussed throughout this prospectus and the documents incorporated by reference herein, and in particular those factors referenced in the section “Risk Factors.”
    This prospectus, any related free writing prospectus and the information and documents incorporated by reference herein contain forward-looking statements that are based on our management’s belief and assumptions and on information currently available to our management. These statements relate to future events or our future financial performance, and involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Forward-looking statements include, but are not limited to, statements about:
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    the progress, timing and success of our clinical trials of silevertinib (formerly BDTX-1535) and any of our future product candidates, including the availability, timing and announcement of data and results of such trials;
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    our ability to obtain and maintain regulatory approval for silevertinib or any of our future product candidates that we may identify or develop;
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    the scope, timing, progress and results of our clinical trials and investigational new drug (“IND”) applications, development efforts and other regulatory submissions;
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    the effects of competition with respect to silevertinib or any of our other current or future product candidates, as well as innovations by current and future competitors in our industry;
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    our evaluation of potential partnership opportunities to advance the pivotal development of silevertinib in a timely manner and to successfully execute and realize the intended and potential benefits of any such potential partnership;
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    our partnership with Servier and the intended and potential benefits thereof, including the receipt of potential milestone and royalty payments from commercial product sales, along with tiered royalties based on global net sales, if any;
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    Servier’s ability to develop and commercialize BDTX-4933, including the ongoing Phase 1 clinical trial of BDTX-4933, and the potential of BDTX-4933 to address the unmet medical need for patients with RAF/RAS-mutant solid tumors, including NSCLC;
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    our evaluation of strategic alternatives for BDTX-4876, including our ability to execute and realize the anticipated benefits of any strategic alternatives we may pursue;
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    our need to raise additional funding before we can expect to generate any revenues from product sales;
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    our ability to develop our current and future product candidates for the treatment of various cancers;
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    the rate and degree of market acceptance and clinical utility for any current or future product candidates we may develop;
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    the implementation of our strategic plans for our business and our product candidates;
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    our ability to successfully develop companion diagnostics for use with our current or future product candidates;
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    our intellectual property position, including the scope of protection we are able to establish, maintain and enforce for intellectual property rights covering our product candidates and Mutation-Allostery-Pharmacology (“MAP”) drug discovery engine;
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    our ability to obtain additional funding for our operations, when needed, including funding necessary to complete further development and commercialization of our product candidates, if approved;
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    the period over which we expect our existing cash, cash equivalents and investments will be sufficient to fund our operating expenses and capital expenditure requirements;
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    the accuracy of our estimates regarding expenses, future revenue, capital requirements and needs for additional financing;
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    our future financial performance and our ability to effectively manage our anticipated growth;
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    our estimates regarding the market opportunities for our product candidates, including our competitive position and the success of competing therapies that are or may become available;
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    our need for and ability to attract and retain key scientific, management and other personnel and to identify, hire and retain additional qualified professionals;
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    the potential for our business development efforts to maximize the value of our product candidates;
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    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;
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    our ability to establish or maintain collaborations or strategic relationships, the ability and willingness of our third-party strategic collaborators to undertake research and development activities relating to our current or future product candidates, and the achievement of milestones or occurrence of other developments that trigger payments under any collaboration agreements, if any;
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    our ability to maintain an effective system of internal controls;
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    our expected use of the net proceeds from offerings of shares of our common stock pursuant to this prospectus; and
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    the impact of macroeconomic and geopolitical developments on our business, including rising inflation and capital market disruptions, changes in or disruptions of U.S. governmental agencies whether from a continued U.S. federal government shutdown or reduced resources, new or increased international tariffs and retaliatory tariffs, new laws and regulations or amendments to existing laws and regulations in the U.S. and foreign countries, trade protection measures, economic sanctions and economic slowdowns or recessions that may result from such developments which could harm our research and development efforts as well as the value of our common stock and our ability to access capital markets.
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    These forward-looking statements are neither promises nor guarantees of future performance due to a variety of risks and uncertainties, many of which are beyond our control, which could cause actual results to differ materially from those indicated by these forward-looking statements, including, without limitation the risk factors and cautionary statements described in other documents that we file from time to time with the SEC, specifically under “Item 1A. Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K for the year ended December 31, 2024, our subsequent Quarterly Reports on Form 10-Q and our Current Reports on Form 8-K that are incorporated herein by reference, as applicable, and the section of any accompanying prospectus supplement entitled “Risk Factors.”
    The forward-looking statements in this prospectus, including the documents incorporated by reference herein, represent our current views concerning future developments and their potential effects on us as of their respective dates. We anticipate that subsequent events and developments will cause our views to change. Some of these risks and uncertainties may in the future be amplified by global health crises, macroeconomic conditions and geopolitical developments, and there may be additional risks that we consider immaterial or which are unknown. It is not possible to predict or identify all such risks. However, while we may elect to update these forward-looking statements at some point in the future, we assume no obligation to update or revise any forward-looking statements except to the extent required by applicable law. You should, therefore,
     
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    not rely on these forward-looking statements as representing our views as of any date subsequent to the dates on which they were made.
    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 reflected in this prospectus. Unless otherwise expressly stated, we obtained this industry, 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 some cases applying our own assumptions and analysis that may, in the future, prove not to have been accurate. While we are not aware of any misstatements regarding any third-party information presented in this prospectus, their estimates, in particular, as they relate to projections, involve numerous assumptions, are subject to risks and uncertainties and are subject to change based on various factors. You should read this prospectus, any applicable prospectus supplement and any related free writing prospectus and the documents that we reference therein and have filed with the SEC as exhibits thereto completely and with the understanding that our actual future results may be materially different from any future results expressed or implied by these forward-looking statements.
     
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    USE OF PROCEEDS
    We may issue and sell shares of our common stock having aggregate sales proceeds of up to $150.0 million from time to time under this prospectus. The amount of the net proceeds to us from this offering will depend upon the number of shares of our common stock sold and the price at which they are sold. There can be no assurance that we will be able to sell any shares under or fully utilize our Sales Agreement with Jefferies.
    We currently intend to use the net proceeds from this offering, together with our existing cash, cash equivalents and investments, to primarily fund research and development and clinical development to support the advancement of our current or future product candidates, and the remainder for working capital, capital expenditures and other general corporate purposes. Pending these uses, we may temporarily invest the net proceeds from this offering in a variety of capital preservation instruments, including short-term, investment-grade, interest-bearing instruments and U.S. government securities, or may hold such proceeds as cash, until they are used for their stated purpose. We have not determined the amount of net proceeds to be used specifically for such purposes. As a result, management will retain broad discretion over the allocation of net proceeds.
    The expected use of the net proceeds from this offering represents our intentions based upon our current plans and business conditions, which could change in the future as our plans and business conditions evolve. We have not determined the amounts we plan to spend on any of the areas listed above or the timing of these expenditures. The amounts and timing of our actual expenditures may vary significantly depending on numerous factors, including the actual net proceeds from this offering (which will depend on the market price of our common stock during the sales period, any limits we may set with Jefferies in any applicable placement notice and the demand for our common stock), the progress of our development, the status of and results from clinical trials and collaborations that we may enter into with third parties for our product candidates and any unforeseen cash needs, including the factors described under “Risk Factors” in this prospectus and in the documents incorporated by reference herein. As a result, our management will retain broad discretion over the allocation of the net proceeds from this offering.
     
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    DILUTION
    If you invest in this offering, your ownership interest will be diluted immediately to the extent of the difference between the public offering price per share and the as-adjusted net tangible book value per share of our common stock after giving effect to this offering.
    As of September 30, 2025, we had net tangible book value of approximately $126.2 million, or $2.22 per share of our common stock, based upon 56,943,413 shares of our common stock outstanding as of that date. Historical net tangible book value per share is equal to our total tangible assets, less total liabilities, divided by the number of outstanding shares of our common stock. Dilution in net tangible book value per share represents the difference between the amount per share paid by purchasers of shares of common stock in this offering and the net tangible book value per share of our common stock immediately after this offering.
    After giving effect to the sale of our common stock pursuant to this prospectus in the aggregate amount of $150.0 million at an assumed offering price of $4.62 per share, the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025, and after deducting commissions and estimated aggregate offering expenses payable by us, our net tangible book value as of September 30, 2025 would have been $273.2 million, or $3.05 per share of common stock. This represents an immediate increase in the net tangible book value of $0.83 per share to our existing stockholders and immediate dilution of $1.57 in net tangible book value per share to new investors in this offering. The following table illustrates this per share dilution:
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    Assumed public offering price per share
    ​ ​ ​ ​ ​ ​ ​ ​ ​ $ 4.62 ​ ​
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    Net tangible book value per share as of September 30, 2025
    ​ ​ ​ $ 2.22 ​ ​ ​ ​ ​ ​ ​ ​
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    Increase in net tangible book value per share attributable to sale of shares of common stock in this offering
    ​ ​ ​ $ 0.83 ​ ​ ​ ​ ​ ​ ​ ​
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    As adjusted net tangible book value per share as of September 30, 2025, after giving effect to this offering
    ​ ​ ​ ​ ​ ​ ​ ​ ​ $ 3.05 ​ ​
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    Dilution per share to new investors purchasing shares in this offering
    ​ ​ ​ ​ ​ ​ ​ ​ ​ $ 1.57 ​ ​
    The table above assumes for illustrative purposes that an aggregate of 32,467,532 shares of our common stock are sold pursuant to this prospectus at a price of $4.62 per share, the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025, for aggregate gross proceeds of $150.0 million. The shares sold in this offering, if any, will be sold from time to time at various prices. An increase of $1.00 per share in the price at which the shares are sold from the assumed offering price to $5.62 per share, assuming all of our common stock in the aggregate amount of $150.0 million is sold at that price, would result in an adjusted net tangible book value per share after the offering of $3.40 per share and would increase the dilution in net tangible book value per share to new investors in this offering to $2.22 per share, after deducting commissions and estimated aggregate offering expenses payable by us. A decrease of $1.00 per share in the price at which the shares are sold from the assumed offering price to $3.62 per share, assuming all of our common stock in the aggregate amount of $150.0 million is sold at that price, would result in an adjusted net tangible book value per share after the offering of $2.70 per share and would decrease the dilution in net tangible book value per share to new investors in this offering to $0.92 per share, after deducting commissions and estimated aggregate offering expenses payable by us. This information is supplied for illustrative purposes only.
    The above discussion and table are based on 56,943,413 shares of our common stock outstanding as of September 30, 2025, but exclude:
    •
    9,749,471 shares of common stock issuable upon the exercise of stock options outstanding as of September 30, 2025, at a weighted average exercise price of $5.81 per share;
    ​
    •
    670,000 shares of common stock issuable upon the vesting of restricted share units outstanding as of September 30, 2025;
    ​
    •
    10,757 shares of common stock issuable upon the exercise of warrants outstanding as of September 30, 2025, at an exercise price of $3.02 per share;
    ​
     
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    •
    5,924,424 shares of common stock reserved for future issuance under our 2020 Stock Option and Incentive Plan (the “2020 Plan”) as of September 30, 2025, as well as any automatic increases in the number of shares of common stock reserved for issuance under the 2020 Plan; and
    ​
    •
    1,690,512 shares of common stock reserved for future issuance under our 2020 Employee Stock Purchase Plan (the “2020 ESPP”) as of September 30, 2025, as well as any automatic increases in the number of shares of common stock reserved for issuance under the 2020 ESPP.
    ​
    Unless otherwise stated, all information contained in this prospectus assumes no exercise of stock options, vesting of restricted common stock, or issuances of shares under the 2020 ESPP after September 30, 2025, and reflects an assumed public offering price of $4.62, which was the last reported sale price of our common stock on The Nasdaq Global Select Market on November 11, 2025.
    To the extent that outstanding stock options or warrants are exercised, shares of common stock are issued upon the vesting of outstanding restricted common stock or under the 2020 ESPP, new options are issued under the 2020 Plan, or we otherwise issue additional shares of common stock in the future at a price less than the assumed public offering price, investors purchasing our common stock in this offering may experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.
     
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    DIVIDEND POLICY
    We have never declared or paid cash dividends on our capital stock. We currently plan to retain all of our future earnings, if any, to finance the operation, development and growth of our business. We do not expect to pay any cash dividends on our common stock in the foreseeable future. Payment of future dividends, if any, will be at the discretion of our board of directors and will depend on our financial condition, results of operations, capital requirements, restrictions contained in current or future financing instruments, provisions of applicable law and other factors the board deems relevant. Our ability to pay dividends on our common stock may be restricted by the terms of any of our future indebtedness.
     
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    PLAN OF DISTRIBUTION
    We previously entered into a Sales Agreement with Jefferies on February 1, 2021, under which we may offer and sell up to $150,000,000 of our shares of common stock from time to time through Jefferies acting as agent. Sales of our shares of common stock, if any, under this prospectus will be made by any method that is deemed to be an “at the market offering” as defined in Rule 415(a)(4) under the Securities Act.
    Each time we wish to issue and sell our shares of common stock under the Sales Agreement, we will notify Jefferies of the number of shares to be issued, the dates on which such sales are anticipated to be made, any limitation on the number of shares to be sold in any one day and any minimum price below which sales may not be made. Once we have so instructed Jefferies, unless Jefferies declines to accept the terms of such notice, Jefferies has agreed to use its commercially reasonable efforts consistent with its normal trading and sales practices to sell such shares up to the amount specified on such terms. The obligations of Jefferies under the Sales Agreement to sell our shares of common stock are subject to a number of conditions that we must meet.
    The settlement of sales of shares between us and Jefferies is generally anticipated to occur on the first trading day following the date on which the sale was made. Sales of our shares of common stock as contemplated in this prospectus will be settled through the facilities of The Depository Trust Company or by such other means as we and Jefferies may agree upon. There is no arrangement for funds to be received in an escrow, trust or similar arrangement.
    We will pay Jefferies a commission of up to 3.0% of the aggregate gross proceeds we receive from each sale of our shares of common stock. Because there is no minimum offering amount required as a condition to close this offering, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. In addition, we have agreed to reimburse Jefferies for the fees and disbursements of its counsel, payable upon execution of the Sales Agreement, in an amount not to exceed $50,000, as well as ongoing disbursements of legal counsel payable in the amount of up to $15,000 in connection with each diligence bring-down thereafter. We estimate that the total expenses for the offering, excluding any commissions or expense reimbursement payable to Jefferies under the terms of the Sales Agreement, will be approximately $300,000. The remaining sale proceeds, after deducting any other transaction fees, will equal our net proceeds from the sale of such shares.
    Jefferies will provide written confirmation to us before the open on The Nasdaq Global Select Market on the day following each day on which our shares of common stock are sold under the Sales Agreement. Each confirmation will include the number of shares sold on that day, the aggregate gross proceeds of such sales and the proceeds to us.
    In connection with the sale of our shares of common stock on our behalf, Jefferies will be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of Jefferies will be deemed to be underwriting commissions or discounts. We have agreed to indemnify Jefferies against certain civil liabilities, including liabilities under the Securities Act. We have also agreed to contribute to payments Jefferies may be required to make in respect of such liabilities.
    The offering of our shares of common stock pursuant to the Sales Agreement will terminate upon the earlier of (i) the sale of all shares of common stock subject to the Sales Agreement and (ii) the termination of the Sales Agreement as permitted therein. We and Jefferies may each terminate the Sales Agreement at any time upon ten trading days’ prior notice.
    This summary of the material provisions of the Sales Agreement does not purport to be a complete statement of its terms and conditions. A copy of the Sales Agreement is filed as an exhibit to the registration statement of which this prospectus forms a part.
    Jefferies and its affiliates may in the future provide various investment banking, commercial banking, financial advisory and other financial services for us and our affiliates, for which services they may in the future receive customary fees. In the course of its business, Jefferies may actively trade our securities for its own account or for the accounts of customers, and, accordingly, Jefferies may at any time hold long or short positions in such securities.
    A prospectus in electronic format may be made available on a website maintained by Jefferies, and Jefferies may distribute the prospectus electronically.
     
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    LEGAL MATTERS
    The validity of the shares of common stock offered hereby will be passed upon by Goodwin Procter LLP, Boston, Massachusetts. Jefferies LLC is being represented in connection with this offering by Latham & Watkins LLP, San Diego, California.
    EXPERTS
    The financial statements incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2024 have been so incorporated in reliance on the report (which contains an emphasis of matter paragraph related to the Company’s requirement for additional capital to fund operations as described in Note 1 to the financial statements) of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.
    WHERE YOU CAN FIND MORE INFORMATION
    This prospectus is part of a registration statement on Form S-3 that we filed with the SEC. Certain information in the registration statement has been omitted from this prospectus in accordance with the rules of the SEC. For further information with respect to us and the securities we are offering under this prospectus, we refer you to the registration statement of which this prospectus forms a part, including the exhibits and schedules filed as a part of the registration statement. Statements contained in this prospectus as to the contents of any contract or other document are not necessarily complete, and in each instance we refer you to the copy of the contract or document filed as an exhibit to the registration statement, each such statement being qualified in all respects by such reference. You should rely only on the information contained in this prospectus or incorporated by reference. We have not authorized anyone else to provide you with different information. We are not making an offer of these securities 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 the securities offered by this prospectus.
    We file annual, quarterly and current reports, proxy statements and other documents with the SEC under the Exchange Act. The SEC maintains a website that contains reports, proxy and information statements and other information regarding issuers, including us, that file electronically with the SEC. You may obtain documents that we file with the SEC at www.sec.gov. We also make these documents available on our website at www.blackdiamondtherapeutics.com. Information contained in, or that can be accessed through, our website is not a part of this prospectus and is not incorporated by reference in this prospectus. We have included our website address in this prospectus solely as an inactive textual reference.
     
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    INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
    The SEC allows us to incorporate by reference in this prospectus much of the information we file with it, which means that we can disclose important information to you by referring you to those publicly available documents. The information incorporated by reference is an important part of this prospectus, and the information that we file later with the SEC will automatically update and, where applicable, supersede the information already incorporated by reference. We are incorporating by reference the documents listed below, which have been already filed with the SEC (SEC File No. 001-39200), and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, including all filings made after the date of the filing of this prospectus, except as to any portion of any future report or document that is not deemed filed under such provision, after the date of this prospectus and prior to the termination of this offering:
    •
    Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 6, 2025;
    ​
    •
    The information specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2024, from our definitive proxy statement on Schedule 14A (other than information furnished rather than filed), which was filed with the SEC on April 18, 2025;
    ​
    •
    Quarterly Reports on Form 10-Q filed with the SEC for the quarters ended March 31, 2025, June 30, 2025, and September 30, 2025, filed with the SEC on May 12, 2025, August 7, 2025, and November 6, 2025, respectively;
    ​
    •
    Current Reports on Form 8-K filed with the SEC on March 19, 2025 and June 12, 2025 (to the extent the information in any such reports is filed and not furnished); and
    ​
    •
    The description of our common stock contained in our Registration Statement on Form 8-A (File No. 001-39200), filed with the SEC under Section 12(b) of the Exchange Act, on January 27, 2020, including any amendments or reports filed for the purpose of updating such description, including Exhibit 4.3 to our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 12, 2024.
    ​
    We incorporate by reference any future filings made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act between the date of this prospectus and the termination of the offering.
    Notwithstanding the foregoing, unless specifically stated to the contrary, information that we furnish (and that is not deemed “filed” with the SEC) under Items 2.02 and 7.01 of any Current Report on Form 8-K, including the related exhibits under Item 9.01, is not incorporated by reference into this prospectus or the registration statement of which this prospectus is a part.
    Any statement contained in a document that is incorporated by reference will be modified or superseded for all purposes to the extent that a statement contained in this prospectus, or in any other document that is subsequently filed with the SEC and incorporated by reference into this prospectus, modifies or is contrary to that previous statement. Any statement so modified or superseded will not be deemed a part of this prospectus, except as so modified or superseded. Since information that we later file with the SEC will update and supersede previously incorporated information, you should look at all of the SEC filings that we incorporate by reference to determine if any of the statements in this prospectus or in any documents previously incorporated by reference have been modified or superseded.
    Upon request, either orally or in writing, we will provide, without charge, to each person, including any beneficial owner, to whom a copy of this prospectus is delivered, a copy of the documents incorporated by reference into this prospectus but not delivered with the prospectus. You may request a copy of these filings, and any exhibits we have specifically incorporated by reference as an exhibit in this prospectus, at no cost by writing or telephoning us at the following address or telephone number:
    Black Diamond Therapeutics, Inc.
    One Main Street, 14th Floor
    Cambridge, MA 02142
    (617) 252-0848
     
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    You may also access these documents, free of charge on the SEC’s website at www.sec.gov or on our website at www.blackdiamondtherapeutics.com. Information contained in or accessible through our website does not constitute a part of this prospectus and is not incorporated by reference into this prospectus. We have included our website solely as an inactive textual reference.
    This prospectus is part of a registration statement we filed with the SEC. We have incorporated exhibits into this registration statement. You should read the exhibits carefully for provisions that may be important to you.
    You should rely only on the information incorporated by reference or provided in this prospectus. We have not authorized anyone to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this prospectus or in the documents incorporated by reference is accurate as of any date other than the date on the front of this prospectus or those documents.
    In accordance with Rule 412 of the Securities Act, any statement contained in a document incorporated by reference herein shall be deemed modified or superseded to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement.
     
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    ​
    ​
    [MISSING IMAGE: lg_blackdiamond-4c.jpg]
    Up to $150,000,000 of Shares of
    Common Stock
    ​
    PROSPECTUS
    ​
    Jefferies
    ​
                , 2025
    ​
    ​

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    Part II — INFORMATION NOT REQUIRED IN PROSPECTUS
    Item 14.   Other Expenses of Issuance and Distribution
    The expenses payable by Black Diamond Therapeutics, Inc. (the “Registrant,” “we,” “our,” “us” or the “Company”) in connection with the issuance and distribution of the securities being registered (other than underwriting discounts and commissions, if any) are set forth below. Each item listed is estimated, except for the Securities and Exchange Commission (the “SEC”) registration fee.
    ​
    SEC registration fee
    ​ ​ ​ $ 13,644.22 ​ ​
    ​
    Legal fees and expenses
    ​ ​ ​ ​ ​* ​ ​
    ​
    Accounting fees and expenses
    ​ ​ ​ ​ ​* ​ ​
    ​
    Printing fees and expenses
    ​ ​ ​ ​ ​* ​ ​
    ​
    Transfer agent and trustee fees
    ​ ​ ​ ​ ​* ​ ​
    ​
    Miscellaneous
    ​ ​ ​ ​ ​* ​ ​
    ​
    Total
    ​ ​ ​ $ ​* ​ ​
    ​
    *
    These fees and expenses depend on the securities offered and the number of issuances and accordingly cannot be estimated at this time.
    ​
    Item 15.   Indemnification of Directors and Officers
    Section 145 of the Delaware General Corporation Law (the “DGCL”) authorizes a corporation to indemnify its directors and officers against liabilities arising out of actions, suits and proceedings to which they are made or threatened to be made a party by reason of the fact that they have served or are currently serving as a director or officer to a corporation. The indemnity may cover expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the director or officer in connection with any such action, suit or proceeding if the director or officer acted in good faith and in a manner the director or officer reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the director or officer’s conduct was unlawful. Section 145 permits corporations to pay expenses (including attorneys’ fees) incurred by directors and officers in advance of the final disposition of such action, suit or proceeding upon receipt of an undertaking by or on behalf of such director or officer to repay such amount if it shall ultimately be determined that such director or officer is not entitled to be indemnified by the corporation as authorized in Section 145. In addition, Section 145 provides that a corporation has the power to purchase and maintain insurance on behalf of its directors and officers against any liability asserted against them and incurred by them in their capacity as a director or officer, or arising out of their status as such, whether or not the corporation would have the power to indemnify the director or officer against such liability under Section 145.
    We have adopted provisions in our Fourth Amended and Restated Certificate of Incorporation, as amended (our “certificate of incorporation”), and our Second Amended and Restated By-laws (our “by-laws”) that limit or eliminate the personal liability of our directors and officers to the fullest extent permitted by the DGCL, as it now exists or may in the future be amended. Consequently, our directors and officers will not be personally liable to us or our stockholders for monetary damages or breach of fiduciary duty as directors or officers, except for liability for:
    •
    any breach of their duty of loyalty to us or our stockholders;
    ​
    •
    any act or omission not in good faith or that involves intentional misconduct or a knowing violation of law;
    ​
    •
    for our directors, any unlawful payments related to dividends or unlawful stock purchases, redemptions or other distributions;
    ​
    •
    any transaction from which they derived an improper personal benefit; or
    ​
     
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    •
    for our officers, any derivative action by us or in our right.
    ​
    These limitations of liability do not alter director liability under the federal securities laws and do not affect the availability of equitable remedies such as an injunction or rescission.
    In addition, our by-laws provide that:
    •
    we will indemnify our directors, officers and, in the discretion of our board of directors, certain employees to the fullest extent permitted by the DGCL, as it now exists or may in the future be amended; and
    ​
    •
    we will advance reasonable expenses, including attorneys’ fees, to our directors and, in the discretion of our board of directors, to our officers and certain employees, in connection with legal proceedings relating to their service for or on behalf of us, subject to limited exceptions.
    ​
    We have entered into indemnification agreements with each of our directors and certain of our executive officers. These agreements provide that we will indemnify each of our directors, certain of our executive officers and, at times, their affiliates to the fullest extent permitted by Delaware law. We will advance expenses, including attorneys’ fees (but excluding judgments, fines and settlement amounts), to each indemnified director, executive officer or affiliate in connection with any proceeding in which indemnification is available and we will indemnify our directors and officers for any action or proceeding arising out of that person’s services as a director or officer brought on behalf of the Company or in furtherance of our rights. Additionally, certain of our directors or officers may have certain rights to indemnification, advancement of expenses or insurance provided by their affiliates or other third parties, which indemnification relates to and might apply to the same proceedings arising out of such director’s or officer’s services as a director referenced herein. Nonetheless, we have agreed in the indemnification agreements that the Company’s obligations to those same directors or officers are primary and any obligation of such affiliates or other third parties to advance expenses or to provide indemnification for the expenses or liabilities incurred by those directors are secondary. We also 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, including liabilities under the Securities Act of 1933, as amended (the “Securities Act”).
     
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    Item 16.   Exhibits and Financial Statement Schedules.
    ​
    Exhibit
    No.
    ​ ​
    Exhibit Index
    ​
    ​ 1.1* ​ ​ Form of Underwriting Agreement ​
    ​ 1.2** ​ ​ Open Market Sale AgreementSM, dated as of February 1, 2021, between the Registrant and Jefferies LLC. ​
    ​ 3.1 ​ ​ Fourth Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-39200) filed with the SEC on February 3, 2020). ​
    ​ 3.2 ​ ​ Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File No. 001-39200) filed with the SEC on June 6, 2024). ​
    ​ 3.3 ​ ​ Second Amended and Restated By-laws of the Registrant (incorporated by reference to Exhibit 3.2 of the Registrant’s Annual Report on Form 10-K (File No. 001-39200) filed with the SEC on March 12, 2024). ​
    ​ 4.1 ​ ​ Second Amended and Restated Investors’ Rights Agreement among the Registrant and certain of its stockholders, dated November 25, 2019 (incorporated by reference to Exhibit 4.1 to the Registrant’s Registration Statement on Form S-1 (File No. 333-235789) filed with the SEC on January 3, 2020). ​
    ​ 4.2 ​ ​ Form of Specimen Common Stock Certificate (incorporated by reference to Exhibit 4.2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-235789) filed with the SEC on January 3, 2020). ​
    ​ 4.3* ​ ​ Specimen Certificate for Preferred Stock. ​
    ​ 4.4* ​ ​ Form of Certificate of Designations. ​
    ​ 4.5** ​ ​
    Form of Senior Indenture between Registrant and one or more trustees to be named (including Form of Senior Note).
    ​
    ​ 4.6** ​ ​
    Form of Subordinated Indenture between Registrant and one or more trustees to be named (including Form of Subordinated Note).
    ​
    ​ 4.7* ​ ​ Form of Warrant Agreement (including Form of Warrant Certificate). ​
    ​ 4.8* ​ ​ Form of Unit Agreement (including Form of Unit Certificate). ​
    ​ 5.1** ​ ​
    Opinion of Goodwin Procter LLP.
    ​
    ​ 5.2** ​ ​
    Opinion of Goodwin Procter LLP relating to sales agreement prospectus.
    ​
    ​ 23.1** ​ ​
    Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
    ​
    ​ 23.2** ​ ​
    Consent of Goodwin Procter LLP (included in Exhibit 5.1).
    ​
    ​ 23.3** ​ ​
    Consent of Goodwin Procter LLP (included in Exhibit 5.2).
    ​
    ​ 24.1** ​ ​
    Power of Attorney (included on signature pages hereto).
    ​
    ​ 25.1*** ​ ​ Form T-1 Statement of Eligibility of Trustee for Senior Indenture under the Trust Indenture Act of 1939, as amended. ​
    ​ 25.2*** ​ ​ Form T-1 Statement of Eligibility of Trustee for Subordinated Indenture under the Trust Indenture Act of 1939, as amended. ​
    ​  107** ​ ​
    Filing Fee Table.
    ​
    ​
    *
    To be filed, if necessary, by amendment or as an exhibit to a document to be incorporated or deemed to be incorporated by reference in this registration statement, including a Current Report on Form 8-K.
    ​
    **
    Filed herewith.
    ​
    ***
    To be filed pursuant to Section 305(b)(2) of the Trust Indenture Act of 1939, as amended, as applicable.
    ​
     
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    Item 17.   Undertakings
    The undersigned Registrant hereby undertakes:
    (a)
    (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;
    ​
    (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 SEC 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; and
    ​
    (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 paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section 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 SEC by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement;
    (2)
    That, for the purpose of determining any liability under the Securities Act, 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;
    ​
    (4)
    That, for the purpose of determining liability under the Securities Act to any purchaser:
    ​
    (i)
    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
    ​
    (ii)
    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 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
    ​
     
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    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 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, each filing of the Registrant annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Exchange Act) 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;
    ​
    (7)
    Insofar as indemnification for liabilities arising under the Securities Act 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 SEC 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 and will be governed by the final adjudication of such issue; and
    ​
    (8)
    To file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act of 1939 in accordance with the rules and regulations prescribed by the SEC under Section 305(b)(2) of the Trust Indenture Act of 1939.
    ​
     
    II-5

    TABLE OF CONTENTS​
     
    SIGNATURES
    Pursuant to the requirements of the Securities Act of 1933, 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 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Cambridge, Commonwealth of Massachusetts, on this 13th day of November, 2025.
    BLACK DIAMOND THERAPEUTICS, INC.
    By:
    /s/ Mark A. Velleca
    ​
    ​
    Mark A. Velleca
    President and Chief Executive Officer
    KNOW ALL BY THESE PRESENT, that each person whose signature appears below hereby severally constitutes and appoints each of Mark A. Velleca and Brent Hatzis-Schoch, and each of them singly, as such person’s true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for such person and in such person’s name, place and stead, in any and all capacities, to sign any or all amendments (including, without limitation, post-effective amendments) to this registration statement (or any registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933), and to file the same, with all exhibits thereto, and all documents in connection therewith, with the Securities and Exchange Commission, granting unto each said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as such person might or could do in person, hereby ratifying and confirming all that any said attorney-in-fact and agent, or any substitute or substitutes of any of them, 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.
    ​
    Name
    ​ ​
    Title
    ​ ​
    Date
    ​
    ​
    /s/ Mark A. Velleca
    ​
    Mark A. Velleca
    ​ ​
    President, Chief Executive Officer,
    Chairman and Director
    (Principal Executive Officer)
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Erika Jones
    ​
    Erika Jones
    ​ ​
    Senior Vice President, Finance
    (Principal Financial Officer and Principal Accounting Officer)
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Ali Behbahani
    ​
    Ali Behbahani
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Kapil Dhingra
    ​
    Kapil Dhingra
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Shannon Campbell
    ​
    Shannon Campbell
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Prakash Raman
    ​
    Prakash Raman
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Samarth Kulkarni
    ​
    Samarth Kulkarni
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
    ​
    /s/ Garry E. Menzel
    ​
    Garry E. Menzel
    ​ ​
    Director
    ​ ​
    November 13, 2025
    ​
     

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