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    Amendment: SEC Form 10-Q/A filed by Crescent Biopharma Inc.

    6/22/26 5:03:00 PM ET
    $CBIO
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $CBIO alert in real time by email
    cbio-20260331
    0001253689--12-31Q1true2026xbrli:shares00012536892026-01-012026-03-3100012536892026-04-240001253689cbio:JoshuaBrummMember2026-01-012026-03-310001253689cbio:JonathanMcNeillMember2026-01-012026-03-310001253689cbio:EllieImMember2026-01-012026-03-310001253689cbio:JanPinkasMember2026-01-012026-03-310001253689cbio:RichardScalzoMember2026-01-012026-03-310001253689cbio:RyanLynchMember2026-01-012026-03-310001253689cbio:BarbaraBisphamHaleMember2026-01-012026-03-31

    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549
    ________________________________
    FORM 10-Q/A
    Amendment No. 1
    ________________________________
    (Mark One)
    xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the quarterly period ended March 31, 2026
    OR
    oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the transition period from _________ to _________
    Commission file number 001-36177
    ________________________________
    Crescent Biopharma, Inc.
    (Exact name of registrant as specified in its charter)
    ________________________________
    Cayman Islands06-1686563
    (State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
    300 Fifth Avenue
    Waltham, MA
    02451
    (Address of Principal Executive Offices)(Zip Code)
    Registrant’s telephone number, including area code: (617) 430-5595

    Securities registered pursuant to Section 12(b) of the Act:
    Title of each classTrading Symbol(s)Name of each exchange on which registered
    Ordinary Shares, $0.001 par value per shareCBIO
    The Nasdaq Capital Market
    Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
    Yes x No o
    Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
    Yes x No o



    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 fileroAccelerated filero
    Non-accelerated filer☒Smaller reporting company☒
    Emerging growth companyo
    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
    o
    Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
    Yes o No ☒

    As of April 24, 2026, there were 27,571,935 of the issuer’s ordinary shares outstanding.

    Explanatory Note

    Crescent Biopharma, Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-Q/A (this “Amendment”) to its Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2026, which was originally filed with the Securities and Exchange Commission (the “SEC”) on April 29, 2026 (the “Original Filing”). This Amendment is being filed to revise Part II “Item 5. Other Information” by adding disclosure regarding Rule 10b5-1 trading arrangements (as defined in Item 408(a) of Regulation S-K), which was inadvertently omitted from the Original Filing.

    In addition, as required by Rule 12b-15 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), new certifications by the Company’s principal executive officer and principal financial officer are filed herewith as exhibits to this Amendment, under Part II, Item 6 hereof, pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. The Company is also not including new certifications under Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of 2002), as no financial statements are being filed with this Amendment.

    Other than as expressly set forth herein, this Amendment does not, and does not purport to, amend, update or restate the information in the Original Filing or reflect any events that have occurred after the date the Original Filing was made. Information not affected by this Amendment remains unchanged and reflects the disclosures made at the time as of which the Original Filing was made. No changes have been made to the financial statements of the Company as contained in the Original Filing. Accordingly, this Amendment should be read together with the Original Filing and the Company’s other filings with the SEC.




    Part II - Other Information
    Item 5. Other Information
    (a) None.
    (b) None.
    (c) Trading Arrangements    
    On February 25, 2026, each of (i) Joshua Brumm, our Chief Executive Officer and member of the Company’s Board of Directors, (ii) Jonathan McNeill, our Chief Operating Officer and President, (iii) Ellie Im, our Chief Medical Officer, (iv) Jan Pinkas, our Chief Scientific Officer, (v) Richard Scalzo, our Chief Financial Officer, (vi) Ryan Lynch, our Treasurer, Senior Vice President of Finance and Chief Accounting Officer, and (vii) Barbara Bispham Hale, our General Counsel and Corporate Secretary, adopted a Rule 10b5-1 trading arrangement intended to satisfy the affirmative defense of Rule 10b5-1(c) authorizing the pre-arranged sale of ordinary shares in order to satisfy tax withholding obligations of the Company that arise in connection with the vesting of any restricted stock units and/or performance stock units granted to them under the Crescent Biopharma, Inc. 2025 Stock Incentive Plan, the Crescent Biopharma, Inc. 2025 Employment Inducement Incentive Award Plan and the Crescent Biopharma, Inc. 2024 Equity Incentive Plan, as amended, including under any successor plan and the related issuance of ordinary shares (each, a “Sell-to-Cover 10b5-1 Instruction”). The number of ordinary shares to be sold to satisfy the Company’s tax withholding obligations under each Sell-to-Cover 10b5-1 Instruction is not currently determinable. Each person’s Sell-to-Cover 10b5-1 Instruction will remain in effect so long as taxes are required to be paid upon the vesting or settlement of restricted stock units or performance stock units awarded or to be awarded to such person, unless such person’s instruction letter is earlier terminated.
    No other director or "officer" (as defined in Rule 16a-1(f)) adopted or terminated any Rule 10b5-1 trading arrangement and/or non-Rule 10b5-1 trading arrangement (in each case, as defined in Item 408 of Regulation S-K) during the three months ended March 31, 2026.

    Item 6. Exhibits
    The exhibits filed or furnished as part of this Quarterly Report are set forth below.
    Exhibit
    Number
    DescriptionFormExhibitFiling Date
    31.1*
    Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) or 15d-14(a) promulgated under the Securities Exchange Act of 1934
    31.2*
    Certification of the Principal Financial Officer pursuant to Rule 13a-14(a) or 15d-14(a) promulgated under the Securities Exchange Act of 1934
    101.INSInline XBRL Instance Document.
    101.SCHInline XBRL Taxonomy Extension Schema with Embedded Linkbases Document.
    101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.
    101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.
    101.LABInline XBRL Taxonomy Extension Label Linkbase Document.
    101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.
    104Cover Page Interactive Data File (embedded within the Inline XBRL document and contained in exhibit 101).
    *Filed herewith.



    SIGNATURES

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

    Crescent Biopharma, Inc.
    Date: June 22, 2026By:/s/ Joshua Brumm
    Joshua Brumm
    Chief Executive Officer
    (Principal Executive Officer)
    Date: June 22, 2026By:/s/ Richard Scalzo
    Richard Scalzo
    Chief Financial Officer
    (Principal Financial Officer)


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