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    Chief Executive Officer Bradley Nathaniel T disposed of 180,000 shares (SEC Form 4)

    9/25/25 7:37:09 PM ET
    $DVLT
    Semiconductors
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    SEC FORM 4 SEC Form 4
    FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
    or Section 30(h) of the Investment Company Act of 1940
    OMB APPROVAL
    OMB Number: 3235-0287
    Estimated average burden
    hours per response: 0.5
      
    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
      
    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
    1. Name and Address of Reporting Person*
    BRADLEY NATHANIEL T

    (Last) (First) (Middle)
    C/O EOS TECHNOLOGY HOLDINGS INC.
    48 WALL STREET, FLOOR 11

    (Street)
    NEW YORK NY 10005

    (City) (State) (Zip)
    2. Issuer Name and Ticker or Trading Symbol
    Datavault AI Inc. [ DVLT ]
    5. Relationship of Reporting Person(s) to Issuer
    (Check all applicable)
    X Director X 10% Owner
    X Officer (give title below) Other (specify below)
    Chief Executive Officer
    3. Date of Earliest Transaction (Month/Day/Year)
    09/23/2025
    4. If Amendment, Date of Original Filed (Month/Day/Year)
    6. Individual or Joint/Group Filing (Check Applicable Line)
    Form filed by One Reporting Person
    X Form filed by More than One Reporting Person
    Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
    1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V Amount (A) or (D) Price
    Common Stock 09/23/2025 J 180,000(1) D $0 12,109,002(2) I By EOS Technology Holdings Inc.
    Common Stock 3,175,818(3) I By Spouse
    Common Stock 4,735,970 D
    Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
    (e.g., puts, calls, warrants, options, convertible securities)
    1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
    1. Name and Address of Reporting Person*
    BRADLEY NATHANIEL T

    (Last) (First) (Middle)
    C/O EOS TECHNOLOGY HOLDINGS INC.
    48 WALL STREET, FLOOR 11

    (Street)
    NEW YORK NY 10005

    (City) (State) (Zip)

    Relationship of Reporting Person(s) to Issuer
    X Director X 10% Owner
    X Officer (give title below) Other (specify below)
    Chief Executive Officer
    1. Name and Address of Reporting Person*
    EOS Technology Holdings Inc.

    (Last) (First) (Middle)
    48 WALL STREET, FLOOR 11

    (Street)
    NEW YORK NY 10005

    (City) (State) (Zip)

    Relationship of Reporting Person(s) to Issuer
    Director X 10% Owner
    Officer (give title below) Other (specify below)
    Explanation of Responses:
    1. This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 180,000 shares of Common Stock of the issuer were transferred by EOS to a third party in pursuant to a side letter, dated as of September 23, 2025, (the "Side Letter") in connection with a consulting agreement, dated as of August 19, 2025 (the "Consulting Agreement"). Both the Consulting Agreement and the Side letter are by and between EOS and the consultant under the Consulting Agreement.
    2. Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.
    3. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Exchange Act or for any other purposes.
    /s/ Nathaniel Bradley 09/25/2025
    EOS Technology Holdings Inc. /s/ Nathaniel Bradley 09/25/2025
    ** Signature of Reporting Person Date
    Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
    * If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
    ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
    Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
    Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
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