[Form 4] Datavault AI Inc. Insider Trading Activity

Rhea-AI Filing Summary

Datavault AI Inc. (DVLT) Chief Executive Officer Nathaniel Bradley reported tax-related sales of company stock. On 11/21/2025, 20,493 shares of common stock were sold at a weighted average price of $2.4396 per share to cover tax obligations from vesting equity awards, described as a non-discretionary transaction made by the issuer on his behalf. Following this, Bradley directly beneficially owned 4,715,477 shares of common stock and indirectly owned 12,109,002 shares through EOS Technology Holdings Inc. In a related transaction for tax withholding, 7,315 shares were sold on behalf of his spouse at the same average price, after which 3,168,503 shares were held indirectly through the spouse.

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

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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)
11/21/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	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	11/21/2025		S(1)		20,493(1)	D	$2.4396(2)	4,715,477	D
Common Stock								12,109,002(3)	I	By EOS Technology Holdings Inc.
Common Stock	11/21/2025		S(4)		7,315(4)	D	$2.4396(2)	3,168,503	I	By Spouse

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

Explanation of Responses:

1. Represents shares of common stock, par value $0.0001 per share ("Common Stock"), of the issuer sold to the open market by the issuer on behalf of the reporting person to satisfy tax obligations in connection with vesting of equity awards and was not a discretionary transaction by the reporting person.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.355 to $2.495. The reporting person and the spouse of the reporting person, Sonia Choi ("Ms. Choi") undertake to provide to the issuer, any shareholder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

3. 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.

4. Represents shares of Common Stock of the issuer sold to the open market by the issuer on behalf of Ms. Choi to satisfy tax obligations in connection with vesting of equity awards and was not a discretionary transaction by Mr. Bradley or Ms. Choi.

	/s/ Nathaniel Bradley	11/25/2025
	** 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.

FAQ

What did Datavault AI (DVLT) disclose in this Form 4 filing?

The filing reports that CEO, director, and 10% owner Nathaniel Bradley had shares of Datavault AI Inc. common stock sold on 11/21/2025 to satisfy tax obligations related to vesting equity awards.

How many Datavault AI (DVLT) shares were sold for Nathaniel Bradleys tax obligations?

A total of 20,493 shares of Datavault AI Inc. common stock were sold at a weighted average price of $2.4396 per share to cover Nathaniel Bradleys tax obligations.

What are Nathaniel Bradleys Datavault AI (DVLT) holdings after the reported Form 4 transactions?

After the transactions, Nathaniel Bradley beneficially owned 4,715,477 shares directly and 12,109,002 shares indirectly through EOS Technology Holdings Inc.

Were the Datavault AI (DVLT) stock sales by Nathaniel Bradley discretionary trades?

No. The filing states the shares were sold by the issuer on behalf of Nathaniel Bradley to satisfy tax obligations from vesting equity awards and were not discretionary transactions by him.

What Datavault AI (DVLT) stock transaction was reported for Nathaniel Bradleys spouse?

The filing notes that 7,315 shares of common stock were sold on 11/21/2025 at a weighted average price of $2.4396 per share on behalf of his spouse to satisfy tax obligations from vesting equity awards.

How many Datavault AI (DVLT) shares are held indirectly through Nathaniel Bradleys spouse?

After the reported transaction, 3,168,503 shares of Datavault AI Inc. common stock were held indirectly through Nathaniel Bradleys spouse.