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    Amendment: SEC Form SCHEDULE 13G/A filed by HCM II Acquisition Corp.

    8/14/25 9:15:48 AM ET
    $HOND
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    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    (Amendment No. 1)


    HCM II Acquisition Corp.

    (Name of Issuer)


    Class A Ordinary Shares, par value $0.0001 per share

    (Title of Class of Securities)


    G43658106

    (CUSIP Number)


    06/30/2025

    (Date of Event Which Requires Filing of this Statement)


    Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
    Checkbox checked   Rule 13d-1(b)
    Checkbox not checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)






    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR Partners LLP
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED KINGDOM
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    IA, PN


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR PARTNERS Ltd
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    HONG KONG
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    CO, IA


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR Partners LLC
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    IA, OO


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR Partners AG
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    SWITZERLAND
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    CO, IA


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR PARTNERS (DIFC) Ltd
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED ARAB EMIRATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    CO, IA


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    LMR Partners (Ireland) Limited
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    IRELAND
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    CO, IA


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    Ben Levine
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED KINGDOM
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    IN, HC


    SCHEDULE 13G

    CUSIP No.
    G43658106


    1Names of Reporting Persons

    Stefan Renold
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    SWITZERLAND
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    941,287.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    941,287.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    941,287.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    4.1 %
    12Type of Reporting Person (See Instructions)

    IN, HC


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    HCM II Acquisition Corp.
    (b)Address of issuer's principal executive offices:

    100 First Stamford Place, Suite 330, Stamford, Connecticut, 06902
    Item 2. 
    (a)Name of person filing:

    (i) LMR Partners LLP, LMR Partners Limited, LMR Partners LLC, LMR Partners AG, LMR Partners (DIFC) Limited and LMR Partners (Ireland) Limited (collectively, the "LMR Investment Managers"), which serve as the investment managers to certain funds with respect to the Class A Ordinary Shares, par value $0.0001 per share ("Class A Ordinary Shares"), held by certain funds; and (ii) Ben Levine and Stefan Renold, who are ultimately in control of the investment and voting decisions of the LMR Investment Managers with respect to the securities held by certain funds. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons."
    (b)Address or principal business office or, if none, residence:

    The address of the principal business office of each of the Reporting Persons is c/o LMR Partners LLP, 9th Floor, Devonshire House, 1 Mayfair Place, London, W1J 8AJ, United Kingdom.
    (c)Citizenship:

    LMR Partners LLP is a United Kingdom limited liability partnership. LMR Partners Limited is a Hong Kong corporation. LMR Partners LLC is a Delaware limited liability company. LMR Partners AG is a Swiss corporation. LMR Partners (DIFC) Limited is a United Arab Emirates corporation. LMR Partners (Ireland) Limited is a limited company incorporated in Ireland. Ben Levine is a citizen of the United Kingdom. Stefan Renold is a citizen of Switzerland.
    (d)Title of class of securities:

    Class A Ordinary Shares, par value $0.0001 per share
    (e)CUSIP No.:

    G43658106
    Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
    (a)Checkbox not checked   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
    (b)Checkbox not checked   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
    (c)Checkbox not checked   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
    (d)Checkbox not checked   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
    (e)Checkbox checked   An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
    (f)Checkbox not checked   An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
    (g)Checkbox checked   A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
    (h)Checkbox not checked   A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
    (i)Checkbox not checked   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
    (j)Checkbox checked   A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
           please specify the type of institution:
    (k)Checkbox not checked   Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
     
    investment adviser
    Item 4.Ownership
    (a)Amount beneficially owned:

    The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference. As of June 30, 2025: The Class A Ordinary Shares beneficially owned by the Reporting Persons are directly held by LMR Multi-Strategy Master Fund Limited ("LMR Master Fund") and LMR CCSA Master Fund Ltd ("LMR CCSA Master Fund"). LMR Master Fund directly holds 590,644 Class A Ordinary Shares and LMR CCSA Master Fund directly holds 350,643 Class A Ordinary Shares, with a total of 941,287 Class A Ordinary Shares in the aggregate (the "LMR Shares")
    (b)Percent of class:

    As of June 30, 2025: The Class A Ordinary Shares held by LMR Master Fund represent approximately 2.6% and the Class A Ordinary Shares held by LMR CCSA Master Fund represent approximately 1.5% and the LMR Shares in the aggregate represent approximately 4.1% of the outstanding Class A Ordinary Shares, based on 23,000,000 Class A Ordinary Shares of the Issuer outstanding as of May 20, 2025, as reported in the Issuer's Form 10-Q/A filed with the Securities and Exchange Commission on July 17, 2025.
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    As of June 30, 2025, each of the Reporting Persons had sole power to vote or direct the vote of 0 shares of Class A Ordinary Shares.

     (ii) Shared power to vote or to direct the vote:

    As of June 30, 2025, each of the Reporting Persons had shared power to vote or direct the vote of 941,287 Class A Ordinary Shares.

     (iii) Sole power to dispose or to direct the disposition of:

    As of June 30, 2025, each of the Reporting Persons had sole power to dispose or to direct the disposition of 0 Class A Ordinary Shares.

     (iv) Shared power to dispose or to direct the disposition of:

    As of June 30, 2025, each of the Reporting Persons had shared power to dispose or to direct the disposition of 941,287 Class A Ordinary Shares.

    Item 5.Ownership of 5 Percent or Less of a Class.
     
    Checkbox checked    Ownership of 5 percent or less of a class
    Item 6.Ownership of more than 5 Percent on Behalf of Another Person.
     
    Not Applicable
    Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
     
    Not Applicable
    Item 8.Identification and Classification of Members of the Group.
     
    Not Applicable
    Item 9.Notice of Dissolution of Group.
     
    Not Applicable

    Item 10.Certifications:
     
    By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to LMR Partners LLP, LMR Partners Limited, LMR Partners AG, LMR Partners (DIFC) Limited and LMR Partners (Ireland) Limited is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    LMR Partners LLP
     
    Signature:/s/ Shane Cullinane
    Name/Title:Shane Cullinane / Chief Operating Officer
    Date:08/14/2025
     
    LMR PARTNERS Ltd
     
    Signature:/s/ Shane Cullinane
    Name/Title:Shane Cullinane / Chief Operating Officer
    Date:08/14/2025
     
    LMR Partners LLC
     
    Signature:/s/ Allyson Hanlon
    Name/Title:Allyson Hanlon / US Legal Counsel
    Date:08/14/2025
     
    LMR Partners AG
     
    Signature:/s/ Shane Cullinane
    Name/Title:Shane Cullinane / Chief Operating Officer
    Date:08/14/2025
     
    LMR PARTNERS (DIFC) Ltd
     
    Signature:/s/ Shane Cullinane
    Name/Title:Shane Cullinane / Chief Operating Officer
    Date:08/14/2025
     
    LMR Partners (Ireland) Limited
     
    Signature:/s/ Shane Cullinane
    Name/Title:Shane Cullinane / Chief Operating Officer
    Date:08/14/2025
     
    Ben Levine
     
    Signature:/s/ Ben Levine
    Name/Title:Ben Levine / Self
    Date:08/14/2025
     
    Stefan Renold
     
    Signature:/s/ Stefan Renold
    Name/Title:Stefan Renold / Self
    Date:08/14/2025
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