[Form 4] WiSA Technologies, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Datavault AI Inc. (DVLT) reported insider transactions by Nathaniel Bradley and EOS Technology Holdings Inc. on September 7, 2025. EOS received 10,000,000 shares of Common Stock by converting $3,200,000 of a previously issued $10,000,000 convertible promissory note at a conversion price of $0.32 per share; the floor price in the note was waived for this conversion. Following the reported transaction, EOS is shown as beneficially owning 12,289,002 shares (indirect). The filing also shows 3,175,818 shares held indirectly by a spouse and a separate line reporting 4,735,970 shares disposed by a reporting person. Mr. Bradley is CEO, sole director of EOS, and is a 10% owner; he disclaims beneficial ownership of certain shares except for his pecuniary interest.

Positive

• Convertible debt reduced by $3,200,000 through conversion, decreasing outstanding note principal
• Issuer obtained equity instead of cash repayment, which can preserve liquidity

Negative

• 10,000,000 new shares issued, which is potentially dilutive to existing shareholders
• Large insider disposition reported (4,735,970 shares sold), which may affect share supply and perceptions of insider selling

Insights

Securities Analyst

TL;DR: Debt conversion issued 10 million shares at $0.32, reducing note balance by $3.2M and substantially increasing common shares outstanding.

This conversion converts a portion of a $10.0M promissory note into equity, lowering the issuer's outstanding convertible debt by $3.2M. The conversion price of $0.32 and waiver of the note floor are material terms disclosed in the filing. The issuance of 10,000,000 new shares is likely dilutive to existing shareholders and increases the number of shares subject to insider control via EOS. The report also lists a sizable disposition of 4,735,970 shares, which is a separate, notable transfer recorded on the form.

Corporate Governance Expert

TL;DR: CEO and related entity acquired shares via note conversion; disclosure shows potential concentration of voting power and standard disclaimers.

The filing clarifies that Mr. Bradley, as officer and sole director of EOS, has authority over EOS-held shares but disclaims beneficial ownership except to the extent of pecuniary interest. That boilerplate disclaimer is typical but important for Section 16 reporting. The joint filing by the individual and EOS and the waiver of the note floor are governance-relevant because they change capital structure and insider ownership profiles. The disposition line should be reviewed in filings for timing and counterparty details, which are not provided here.

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
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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)
09/07/2025

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	09/07/2025		J		10,000,000(1)	A	$0.32	12,289,002(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 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. 10,000,000 shares of Common Stock of the issuer were issued to EOS pursuant to an amendment and conversion agreement, dated as of September 7, 2025 (the "EOS Note Amendment") between EOS and the issuer, to the Convertible Promissory Note (the "EOS Note") issued to EOS on December 31, 2024 in the original principal amount of $10,000,000. Pursuant to the EOS Note Amendment, EOS converted (the "EOS Note Conversion") $3,200,000 of the balance of the EOS Note into 10,000,000 shares of the issuer's Common Stock, at a conversion price of $0.32 per share, and the floor price set forth in the EOS Note was waived and did not apply to the EOS Note Conversion.

2. Mr. Bradley, as an officer and sole director 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	09/09/2025
	EOS Technology Holdings Inc. /s/ Nathaniel Bradley	09/09/2025
	** 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 transaction did Nathaniel Bradley and EOS report for DVLT?

The filing reports that EOS received 10,000,000 shares of Datavault AI Inc. by converting $3,200,000 of a convertible note at $0.32 per share on 09/07/2025.

How much of the convertible note was converted in the DVLT Form 4?

The EOS Note Amendment converted $3,200,000 of the EOS convertible promissory note into common stock.

How many shares does EOS beneficially own after the transaction?

The Form 4 shows EOS beneficially owning 12,289,002 shares following the reported transaction.

Was any insider selling disclosed in the Form 4 for DVLT?

Yes. The filing reports a disposition of 4,735,970 shares (marked as 'D') on the form.

Did the conversion rely on any special waiver or amendment?

Yes. The filing states the floor price in the original note was waived and did not apply to this conversion.