[SCHEDULE 13D/A] WiSA Technologies, Inc. SEC Filing

Rhea-AI Filing Summary

Datavault AI Inc.'s Amendment No. 2 to Schedule 13D updates ownership and recent transactions by reporting persons Nathaniel Bradley, Sonia Choi and EOS Technology Holdings Inc. The filing uses 97,692,374 shares outstanding to calculate percentages: Mr. Bradley beneficially owns 9,645,952 shares (9.9%), Ms. Choi beneficially owns 7,246,041 shares (7.4%), and EOS beneficially owns 2,399,911 shares (2.5%). Mr. Bradley received 50,000 vested RSUs and 500,000 restricted shares as compensation. EOS transferred an aggregate of 1,600,000 shares to third parties under settlement and services agreements. The amendment incorporates prior disclosures and reports no other transactions in the prior 60 days.

Positive

• Clear disclosure of beneficial ownership percentages for Nathaniel Bradley, Sonia Choi and EOS using 97,692,374 shares outstanding
• Mr. Bradley received 550,000 shares as compensation (50,000 vested RSUs and 500,000 restricted shares), increasing his disclosed holdings
• Amendment consolidates prior Schedule 13D information and specifies transactions, improving transparency

Negative

• EOS transferred an aggregate of 1,600,000 shares to third parties under settlement and services agreements, a material change in share distribution
• Significant ownership remains concentrated in the reporting persons with Bradley holding 9.9% and Choi 7.4%, which may affect voting dynamics

Insights

Securities Analyst

TL;DR: Ownership stakes clarified; 1.6M EOS share transfers and 550k shares to Bradley materially change share distribution.

The filing provides clear, quantitative updates to beneficial ownership and recent transfers. Using 97,692,374 shares outstanding, Bradley's 9.9% stake is disclosed alongside Choi's 7.4% and EOS's 2.5%. Compensation to Bradley of 550,000 shares increases his direct holdings, while EOS's transfers totaling 1,600,000 shares reduce EOS-controlled shares available to the group. These are material ownership movements that investors and analysts should note when assessing shareholder concentration and voting power.

Corporate Governance Expert

TL;DR: Related-party transfers and executive equity awards are disclosed; governance transparency improved by amendment.

The amendment documents settlements and a services agreement that resulted in multiple share transfers from EOS to third parties and records equity-based compensation to the CEO. The disclosure of specific share counts and the recalculated percentages enhances transparency about related-party holdings and post-transaction ownership. The filing does not indicate litigation or other governance disputes beyond the described settlement transfers.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 2)

Datavault AI Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

86633R609

(CUSIP Number)

Nathaniel Bradley
48 Wall Street, Floor 11,
New York, NY, 10005
520-631-9595

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

08/08/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 86633R609

1

Name of reporting person

Nathaniel Bradley

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 9,645,952.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 9,645,952.00

11

Aggregate amount beneficially owned by each reporting person

9,645,952.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

9.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Mr. Bradley is Chief Executive Officer and sole director of EOS Technology Holdings Inc. (formerly known as Data Vault Holdings Inc.) and the spouse of Sonia Choi. The shares beneficially owned by Mr. Bradley consist of 4,265,361 shares held directly by Mr. Bradley, 2,399,911 shares held directly by EOS Technology Holdings Inc., and 2,980,680 shares held directly by Ms. Choi.

SCHEDULE 13D

CUSIP No. 86633R609

1

Name of reporting person

Sonia Choi

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 7,246,041.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 7,246,041.00

11

Aggregate amount beneficially owned by each reporting person

7,246,041.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

7.4 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Ms. Choi is the spouse of Mr. Bradley. The shares beneficially owned by Ms. Choi consist of 2,980,680 shares held directly by Ms. Choi and 4,265,361 shares held directly by Mr. Bradley.

SCHEDULE 13D

CUSIP No. 86633R609

1

Name of reporting person

EOS Technology Holdings Inc.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 2,399,911.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 2,399,911.00

11

Aggregate amount beneficially owned by each reporting person

2,399,911.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

2.5 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

These shares are held directly by EOS Technology Holdings Inc.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock
(b)	Name of Issuer: Datavault AI Inc.
(c)	Address of Issuer's Principal Executive Offices: 15268 NW Greenbrier Pkwy, Beaverton, OREGON , 97006.
Item 1 Comment: This Amendment No. 2 to Schedule 13D (this "Amendment No. 2") relating to the shares of common stock, par value $0.0001 per share ("Common Stock"), of Datavault AI Inc., a Delaware corporation (the "Issuer"), amends and supplements the Schedule 13D originally filed by the Reporting Persons with the Securities and Exchange Commission (the "SEC") on January 13, 2025 (the "Original Schedule 13D"), as amended by the Amendment No. 1 to Schedule 13D, filed by the Reporting Persons with the SEC on June 27, 2025 (the "Amendment No. 1" and, together with the Original Schedule 13D, the "Schedule 13D"). Except as specifically amended below, all other provisions of the Schedule 13D remain in effect. Capitalized terms used herein but not defined herein have the respective meanings ascribed to them in the Schedule 13D.
Item 2.	Identity and Background
(a)	The information set forth in Item 2(a) of Amendment No. 1 is incorporated herein by reference.
(c)	The information set forth in Item 2(c) of Amendment No. 1 is incorporated herein by reference.
Item 3.	Source and Amount of Funds or Other Consideration
	Item 3 of the Schedule 13D is amended to add the following: On September 20, 2025, Mr. Bradley received 50,000 shares as a result of the scheduled vesting of a portion of the RSUs granted on January 2, 2025 as compensation for Mr. Bradley's service as an officer of the Issuer. On July 10, 2025, Mr. Bradley received 500,000 restricted shares as compensation for his service as an employee of the Issuer pursuant to the issuer's 2018 Long-Term Stock Incentive Plan.
Item 4.	Purpose of Transaction
	Item 4 of the Schedule 13D is amended to add the following: 300,000 shares of Common Stock of the issuer were transferred by EOS Technology Holdings Inc. ("EOS") to a third party in connection with that certain Settlement Agreement and Release of all Claims, dated as of July 30, 2025, by and between the Issuer, Mr. Bradley, and various other parties. An aggregate of 300,000 shares of Common Stock of the Issuer were transferred by EOS to two separate third parties in connection with one Settlement Agreement and Release, dated as of July 31, 2025, by and between EOS, Mr. Bradley, and one of the third parties receiving shares of Common Stock. 1,000,000 shares of Common Stock of the Issuer were transferred by EOS to a third party in connection with a services agreement, dated as of August 8, 2025 (the "Services Agreement"), by and between EOS and the services provider under the Services Agreement. To the extent required, the disclosure in Item 3 of this Amendment No. 2 is incorporated by reference in this Item 4.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5(a) of the Schedule 13D is amended and restated as follows: The percentage ownership of shares of Common Stock set forth in this Amendment No. 2 is based upon 97,692,374 shares outstanding as of July 30, 2025.
(b)	Item 5(b) of the Schedule 13D is amended and restated as follows: As of the date of this Amendment No. 2, Mr. Bradley beneficially owned 9,645,952 shares, consisting of 4,265,361 shares held directly by Mr. Bradley, 2,399,911 shares held directly by EOS Technology Holdings Inc., and 2,980,680 shares held directly by Ms. Choi. As of the date of this Amendment No. 2, Ms. Choi beneficially owned 7,246,041 shares, consisting of 2,980,680 shares held directly by Ms. Choi and 4,265,361 shares held directly by Mr. Bradley. As of the date of this Amendment No. 2, EOS beneficially owned 2,399,911 shares, held directly by EOS.
(c)	Except as set forth in Item 4 of the Schedule 13D, the Reporting Persons have not engaged in any transaction with respect to the Common Stock during the sixty days prior to the date of filing this Amendment No. 2.
(e)	The information set forth in Item 2(a) of Amendment No. 1 is incorporated herein by reference.

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.

Nathaniel Bradley

Signature:	/s/ Nathaniel Bradley
Name/Title:	Nathaniel Bradley
Date:	08/12/2025

Sonia Choi

Signature:	/s/ Sonia Choi
Name/Title:	Sonia Choi
Date:	08/12/2025

EOS Technology Holdings Inc.

Signature:	/s/ Nathaniel Bradley
Name/Title:	Nathaniel Bradley, CEO
Date:	08/12/2025

FAQ

How many shares does Nathaniel Bradley beneficially own according to the Schedule 13D/A?

Nathaniel Bradley beneficially owns 9,645,952 shares, representing 9.9% of the class based on 97,692,374 shares outstanding.

What ownership percentages are disclosed for the reporting persons (Datavault AI)?

The filing discloses: Nathaniel Bradley 9.9% (9,645,952 shares), Sonia Choi 7.4% (7,246,041 shares), and EOS Technology 2.5% (2,399,911 shares).

Did the reporting persons transfer shares recently and how many were moved?

Yes. EOS transferred an aggregate of 1,600,000 shares to third parties in connection with settlement and services agreements dated in late July and early August 2025.

Did Nathaniel Bradley receive any stock-based compensation reported in the amendment?

Yes. Mr. Bradley received 50,000 vested RSUs (scheduled vesting) and 500,000 restricted shares granted under the issuer's Long-Term Stock Incentive Plan.

What share count was used to calculate the ownership percentages?

The percentages are based on 97,692,374 shares outstanding as of July 30, 2025.