Datavault AI Inc. — Director's Dealing 2025

Sep 26, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datavault AI Inc. (DVLT)
CIK: 0001682149
Period of Report: 2025-09-23

Reporting Person: BRADLEY NATHANIEL T (Director, Chief Executive Officer, 10% Owner)
Reporting Person: EOS Technology Holdings Inc. (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-23	Common Stock	J	180000	—	Disposed	12109002	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3175818	Indirect
Common Stock	4735970	Direct

Footnotes

F1: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. 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. 180,000 shares of Common Stock of the issuer were transferred by EOS to a third party in pursuant to a side letter, dated as of September 23, 2025, (the "Side Letter") in connection with a consulting agreement, dated as of August 19, 2025 (the "Consulting Agreement"). Both the Consulting Agreement and the Side letter are by and between EOS and the consultant under the Consulting Agreement.

F2: 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.

F3: 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.