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    SEC Form SCHEDULE 13G filed by GigCapital8 Corp.

    11/4/25 9:20:05 PM ET
    $GIW
    Get the next $GIW alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    GigCapital8 Corp.

    (Name of Issuer)


    Class A ordinary shares, par value $0.0001 per share

    (Title of Class of Securities)


    G3864J126

    (CUSIP Number)


    10/06/2025

    (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 not checked   Rule 13d-1(b)
    Checkbox checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)






    SCHEDULE 13G

    CUSIP No.
    G3864J126


    1Names of Reporting Persons

    Tenor Capital Management Company, L.P.
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox 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

    1,500,000.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    1,500,000.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    1,500,000.00
    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)

    6.7 %
    12Type of Reporting Person (See Instructions)

    IA

    Comment for Type of Reporting Person:  Please see note in Item 4(a)


    SCHEDULE 13G

    CUSIP No.
    G3864J126


    1Names of Reporting Persons

    Tenor Opportunity Master Fund, Ltd.
    2Check the appropriate box if a member of a Group (see instructions)

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

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

    0.00
    6Shared Voting Power

    1,500,000.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    1,500,000.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    1,500,000.00
    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)

    6.7 %
    12Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:  Please see note in Item 4(a)


    SCHEDULE 13G

    CUSIP No.
    G3864J126


    1Names of Reporting Persons

    Robin Shah
    2Check the appropriate box if a member of a Group (see instructions)

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

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

    0.00
    6Shared Voting Power

    1,500,000.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    1,500,000.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    1,500,000.00
    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)

    6.7 %
    12Type of Reporting Person (See Instructions)

    HC, IN

    Comment for Type of Reporting Person:  Please see note in Item 4(a)


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    GigCapital8 Corp.
    (b)Address of issuer's principal executive offices:

    1731 Embarcadero Rd., Suite 200 Palo Alto, California 94303
    Item 2. 
    (a)Name of person filing:

    Tenor Capital Management Company, L.P. Tenor Opportunity Master Fund, Ltd. Robin Shah
    (b)Address or principal business office or, if none, residence:

    810 Seventh Avenue, Suite 1905, New York, NY 10019
    (c)Citizenship:

    Tenor Capital Management Company, L.P. - Delaware Tenor Opportunity Master Fund, Ltd. - Cayman Islands Robin Shah - USA
    (d)Title of class of securities:

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

    G3864J126
    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 not 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 not 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 not 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).
     
    Item 4.Ownership
    (a)Amount beneficially owned:

    Tenor Capital Management Company, L.P. - 6.7% Tenor Opportunity Master Fund, Ltd. - 6.7% Robin Shah - 6.7% The Class A Ordinary Shares (the "Shares") reported herein are held in the form of units (the "Units"), each Unit consists of one Class A ordinary share of the Issuer and one right to receive one-fifth of one Class A ordinary share upon the consummation of an initial business combination, as described in more detail in the Issuer's Prospectus filed with the SEC on October 6, 2025. The Units are held by Tenor Opportunity Master Fund, Ltd. (the "Master Fund"). Tenor Capital Management Company, L.P. ("Tenor Capital") serves as the investment manager to the Master Fund. Robin Shah serves as the managing member of Tenor Management GP, LLC, the general partner of Tenor Capital. By virtue of these relationships, the Reporting Persons may be deemed to have shared voting and dispositive power with respect to the Shares reported herein in the form of Units owned directly by the Master Fund. This report shall not be deemed an admission that the Reporting Persons are beneficial owners of the Shares for purposes of Section 13 of the Securities Exchange Act of 1934, as amended, or for any other purpose. Each of the Reporting Persons disclaims beneficial ownership of the Shares in the form of Units reported herein except to the extent of the Reporting Person's pecuniary interest therein. The percentages herein are calculated based upon a statement in the Issuer's Prospectus, filed on October 6, 2025 indicating that there are 22,337,675 Units issued and outstanding.
    (b)Percent of class:

    Tenor Capital Management Company, L.P. - 6.7% Tenor Opportunity Master Fund, Ltd. - 6.7% Robin Shah - 6.7%
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    Tenor Capital Management Company, L.P. - 0 Tenor Opportunity Master Fund, Ltd. - 0 Robin Shah - 0

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

    Tenor Capital Management Company, L.P. - 1,500,000 Tenor Opportunity Master Fund, Ltd. - 1,500,000 Robin Shah - 1,500,000

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

    Tenor Capital Management Company, L.P. - 0 Tenor Opportunity Master Fund, Ltd. - 0 Robin Shah - 0

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

    Tenor Capital Management Company, L.P. - 1,500,000 Tenor Opportunity Master Fund, Ltd. - 1,500,000 Robin Shah - 1,500,000

    Item 5.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 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.

        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.

     
    Tenor Capital Management Company, L.P.
     
    Signature:/s/ Robin Shah
    Name/Title:Robin Shah, Managing Member of its general partner, Tenor Management GP, LLC
    Date:11/04/2025
     
    Tenor Opportunity Master Fund, Ltd.
     
    Signature:/s/ Robin Shah
    Name/Title:Robin Shah, Authorized Signatory
    Date:11/04/2025
     
    Robin Shah
     
    Signature:/s/ Robin Shah
    Name/Title:Robin Shah
    Date:11/04/2025
    Exhibit Information

    EXHIBIT I - JOINT FILING STATEMENT

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