# EDGAR Filing Document

**Accession Number:** 0001682149
**File Stem:** 0001104659-25-063741
**Filing Date:** 2025-6
**Character Count:** 11772
**Document Hash:** 93277d7ca2492b72070b858226c9b0ce
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-063741.hdr.sgml**: 20250627

**ACCESSION NUMBER**: 0001104659-25-063741

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250627

**DATE AS OF CHANGE**: 20250627

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Datavault AI Inc.
- **CENTRAL INDEX KEY:** 0001682149
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 301135279
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-90913
- **FILM NUMBER:** 251088541

**BUSINESS ADDRESS:**
- **STREET 1:** 15268 NW GREENBRIER PKWY
- **CITY:** BEAVERTON
- **STATE:** OR
- **ZIP:** 97006
- **BUSINESS PHONE:** 408-627-4716

**MAIL ADDRESS:**
- **STREET 1:** 15268 NW GREENBRIER PKWY
- **CITY:** BEAVERTON
- **STATE:** OR
- **ZIP:** 97006

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WISA TECHNOLOGIES, INC.
- **DATE OF NAME CHANGE:** 20220311

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Summit Wireless Technologies, Inc.
- **DATE OF NAME CHANGE:** 20180914

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Summit Semiconductor Inc.
- **DATE OF NAME CHANGE:** 20180501
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BRADLEY NATHANIEL T
- **CENTRAL INDEX KEY:** 0001755804

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **STREET 1:** 1327 OCEAN AVENUE SUITE B
- **CITY:** SANTA MONICA
- **STATE:** CA
- **ZIP:** 90401

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Datavault AI Inc.**

*(Name of Issuer)*

**Common Stock**

*(Title of Class of Securities)*

**86633R609**

*(CUSIP Number)*

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

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

**06/25/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **86633R609** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Nathaniel Bradley** | Name of reporting person<br>**Nathaniel Bradley** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**10695952.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**10695952.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10695952.00** | Aggregate amount beneficially owned by each reporting person<br>**10695952.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**13.1%** | Percent of class represented by amount in Row (11)<br>**13.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for 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 3,715,361 shares held directly by Mr. Bradley, 3,999,911 shares held directly by EOS Technology Holdings Inc., and 2,980,680 shares held directly by Ms. Choi.

| **CUSIP No.** | **86633R609** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Sonia Choi** | Name of reporting person<br>**Sonia Choi** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**6696041.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**6696041.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**6696041.00** | Aggregate amount beneficially owned by each reporting person<br>**6696041.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.2%** | Percent of class represented by amount in Row (11)<br>**8.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for 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 3,715,361 shares held directly by Mr. Bradley.

| **CUSIP No.** | **86633R609** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**EOS Technology Holdings Inc.** | Name of reporting person<br>**EOS Technology Holdings Inc.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**3999911.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**3999911.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3999911.00** | Aggregate amount beneficially owned by each reporting person<br>**3999911.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.9%** | Percent of class represented by amount in Row (11)<br>**4.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** These shares are held directly by EOS Technology Holdings Inc.

**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, OR, 97006

This Amendment No. 1 to Schedule 13D (this "Amendment No. 1") 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 "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 4. Purpose of Transaction**

Item 4 of the Schedule 13D is amended to add the following:

To the extent required, the disclosure in Item 3 of this Amendment No. 1 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. 1 is based upon 81,593,467 shares outstanding as of June 25, 2025.

**(b)**
Item 5(b) of the Schedule 13D is amended and restated as follows:

As of the date of this Amendment No. 1, Mr. Bradley beneficially owned 10,695,952 shares, consisting of 3,715,361 shares held directly by Mr. Bradley, 3,999,911 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. 1, Ms. Choi beneficially owned 6,696,041 shares, consisting of 2,980,680 shares held directly by Ms. Choi and 3,715,361 shares held directly by Mr. Bradley.

**(c)**
Except as set forth in Item 4 of this Amendment No. 1, 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. 1.

### 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.

**Reporting Person:** Nathaniel Bradley

**Signature:** /s/ Nathaniel Bradley

**Name/Title:** Nathaniel Bradley

**Date:** 06/27/2025

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.

**Reporting Person:** Sonia Choi

**Signature:** /s/ Sonia Choi

**Name/Title:** Sonia Choi

**Date:** 06/27/2025

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.

**Reporting Person:** EOS Technology Holdings Inc.

**Signature:** /s/ Nathaniel Bradley

**Name/Title:** Nathaniel Bradley, CEO

**Date:** 06/27/2025