WiSA Tech Strengthens Executive Retention with Major CEO Stock Package Through 2028

Rhea-AI Filing Summary

Insider Trading Update: Nathaniel Bradley, CEO and Director of DataVault AI, reported significant stock acquisitions on June 25, 2025. Bradley received 218,905 LTIP shares as compensation for his board and officer services, while his spouse Sonia Choi was granted 54,726 LTIP shares for her role as an employee.

Key Details:

• Bradley's direct ownership following transactions: 4,265,361 shares
• Indirect ownership through spouse: 2,980,680 shares
• Additional indirect ownership through EOS Technology Holdings: 3,999,911 shares
• All LTIP shares vest quarterly from September 20, 2025, to June 20, 2028
• Both grants were made at $0 cost under the company's 2018 Long-Term Stock Incentive Plan

Bradley maintains significant ownership stake as both a 10% owner and CEO, though disclaiming beneficial ownership except for his pecuniary interest.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider BRADLEY NATHANIEL T

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	218,905	$0.00	--
Grant/Award	Common Stock	54,726	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 4,265,361 shares (Direct); Common Stock — 2,980,680 shares (Indirect, By Spouse)

Footnotes (1)

1. 218,905 shares (the "LTIP Shares") of common stock, par value $0.0001 per share, of the issuer were received by Nathaniel Bradley ("Mr. Bradley") as compensation for Mr. Bradley's service as a member of the issuer's board of directors and as an officer pursuant to the issuer's 2018 Long-Term Stock Incentive Plan (the "Grant"). The LTIP Shares associated with the Grant are scheduled to vest in equal installments, from the period from September 20, 2025 to June 20, 2028, on each September 20th, December 20th, March 20th and June 20th, so long as Mr. Bradley remains in the service of the issuer on each such date. 54,726 LTIP Shares of the issuer were received by Mr. Bradley's spouse, Sonia Choi ("Ms. Choi"), as compensation for Ms. Choi's service as an employee of the issuer pursuant to the issuer's 2018 Long-Term Stock Incentive Plan. The LTIP Shares associated with the Grant are scheduled to vest in equal installments, from the period from September 20, 2025 to June 20, 2028, on each September 20th, December 20th, March 20th and June 20th, so long as Ms. Choi remains in the service of the issuer on each such date. 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.

Form 4 Insider Transactions: What Each Field Means →

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 DATA VAULT 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)
06/25/2025

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	06/25/2025		A		218,905(1)	A	$0	4,265,361	D
Common Stock	06/25/2025		A		54,726(2)	A	$0	2,980,680(3)	I	By Spouse
Common Stock								3,999,911(3)	I	By EOS Technology Holdings Inc.

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. 218,905 shares (the "LTIP Shares") of common stock, par value $0.0001 per share, of the issuer were received by Nathaniel Bradley ("Mr. Bradley") as compensation for Mr. Bradley's service as a member of the issuer's board of directors and as an officer pursuant to the issuer's 2018 Long-Term Stock Incentive Plan (the "Grant"). The LTIP Shares associated with the Grant are scheduled to vest in equal installments, from the period from September 20, 2025 to June 20, 2028, on each September 20th, December 20th, March 20th and June 20th, so long as Mr. Bradley remains in the service of the issuer on each such date.

2. 54,726 LTIP Shares of the issuer were received by Mr. Bradley's spouse, Sonia Choi ("Ms. Choi"), as compensation for Ms. Choi's service as an employee of the issuer pursuant to the issuer's 2018 Long-Term Stock Incentive Plan. The LTIP Shares associated with the Grant are scheduled to vest in equal installments, from the period from September 20, 2025 to June 20, 2028, on each September 20th, December 20th, March 20th and June 20th, so long as Ms. Choi remains in the service of the issuer on each such date.

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	06/27/2025
	** 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.
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FAQ

How many WISA shares did CEO Nathaniel Bradley receive on June 25, 2025?

CEO Nathaniel Bradley received 218,905 shares of common stock on June 25, 2025, as compensation for his service as a board member and officer under the company's 2018 Long-Term Stock Incentive Plan.

What is the vesting schedule for WISA CEO's new stock grant?

The LTIP shares granted to CEO Bradley will vest in equal installments from September 20, 2025 to June 20, 2028, with vesting dates occurring quarterly on September 20th, December 20th, March 20th, and June 20th, contingent on his continued service with the company.

How many WISA shares does Nathaniel Bradley own directly after the June 25, 2025 transaction?

Following the reported transaction, Nathaniel Bradley directly owns 4,265,361 shares of WISA common stock.

What is the total indirect ownership of WISA shares by CEO Bradley?

CEO Bradley has indirect beneficial ownership of 6,980,591 WISA shares, consisting of 2,980,680 shares held by his spouse and 3,999,911 shares held by EOS Technology Holdings Inc., though he disclaims beneficial ownership except for his pecuniary interest.

Did WISA's CEO pay anything for the shares received on June 25, 2025?

No, the shares were granted to CEO Bradley at a price of $0 as compensation for his service as a board member and officer under the company's 2018 Long-Term Stock Incentive Plan.