X0609 4 2026-08-18 0 0001682149 Datavault AI Inc. DVLT 0001250881 MOYER BRETT false C/O DATAVAULT AI INC., ONE COMMERCE SQ, 2005 MARKET STREET, SUITE 2400 PHILADELPHIA PA 19103 1 1 0 0 Chief Financial Officer 0 Common Stock 2026-08-18 4 A 0 26024 A 5560536 D Received in exchange for 18,413 shares of NYIAX, Inc. ("NYIAX") common stock in connection with the merger of NYIAX with and into DVLT Merger Sub Inc., a wholly owned subsidiary of the Issuer ("Merger Sub"), pursuant to that certain Agreement and Plan of Merger, dated as of March 18, 2026, as amended from time to time (the "Merger Agreement"), by and among the Issuer, Merger Sub and NYIAX. At the effective time of the merger contemplated by the Merger Agreement, the Reporting Person, as a stockholder of NYIAX, became entitled to receive a number of shares of the Issuer's common stock equal to the exchange ratio (determined pursuant to the Merger Agreement) for each share of NYIAX common stock held by the Reporting Person. The exchange ratio was approximately 1.41 shares of Issuer common stock for each share of NYIAX common stock. /s/ Brett Moyer 2026-08-21