The Company evaluated subsequent events through the date the consolidated financial statements were issued.

Dream Bowl Meme Coin II Digital Collectible Dividend

On December 29, 2025, the board of directors of Datavault AI Inc. (the “Company”) declared a conditional dividend of Dream Bowl Meme Coin II digital collectibles (the “Meme Coins”) to eligible holders of the Company’s common stock and certain other equity securities. The Meme Coins were payable to holders of record as of January 7, 2026 and were distributed beginning on February 27, 2026.

The distribution was made on the basis of one Meme Coin for every sixty shares of common stock held, or, with respect to eligible equity securities other than common stock, for every sixty shares of common stock underlying such securities, in each case held as of the record date, with fractional entitlements rounded down. Holders with fewer than sixty shares of common stock or common stock equivalents were not be entitled to receive any Meme Coins.

The Meme Coins are digital collectibles intended solely for personal, non-commercial use in connection with the Dream Bowl XIV event and do not represent or confer any equity, voting, dividend, profit-sharing, or ownership rights in the Company or any other entity, nor do they provide any right to receive cash or other monetary consideration. The Meme Coins are not designed or intended to function as an investment, currency, or financial product.

No amounts related to the Meme Coin dividend were recognized in the accompanying consolidated financial statements, as the declaration and related conditions occurred subsequent to December 31, 2025.

Warrant Dividend

On December 29, 2025, the Company’s board of directors also declared a conditional dividend of warrants to purchase shares of the Company’s common stock to eligible holders of the Company’s common stock and certain other equity securities. The warrants were payable to holders of record as of January 7, 2026 and were distributed on February 27, 2026.

The distribution was made on the basis of one warrant for every sixty shares of common stock held, or, with respect to eligible equity securities other than common stock, for every sixty shares of common stock underlying such securities, in each case held as of the record date, with fractional entitlements rounded down. Holders with fewer than sixty shares of common stock or common stock equivalents were not be entitled to receive any warrants.

Each warrant entitles the holder to purchase one share of the Company’s common stock at an exercise price of $5.00 per share (subject to adjustment for recapitalizations, stock splits, stock dividends and similar types of transactions) and will expire on the first anniversary of the distribution date. The exercise of each warrant is subject to certain conditions, including a requirement that the applicable beneficial owner possess a corresponding Meme Coin at the time of exercise.

Master Purchase Order Agreement - SanQtum

On January 4, 2026, the Company entered into a Master Purchase Order Agreement with AP Global Holdings LLC (d/b/a Available Infrastructure) pursuant to which the Company agreed to purchase SanQtum™ infrastructure and cybersecurity services under a services-based delivery model. The agreement provides for an upfront payment of $250,000 and has an initial term of twelve months, subject to earlier termination in accordance with its terms. Concurrent with execution of the agreement, the Company placed purchase orders to deploy the services across 100 cities within the contiguous United States.

Event Citadel Warehouse Lease

Subsequent to December 31, 2025, the Company entered into a new five-year lease agreement commencing January 1, 2026 for its warehouse facility. The lease will be accounted for under ASC 842 beginning in 2026 and is expected to result in the recognition of a right-of-use asset and corresponding lease liability. The Company does not expect the lease to materially impact liquidity.

Intangible Property Acquisition

On January 4, 2026, the Company entered into an agreement pursuant to which it agreed to issue 7,500,000 shares of its common stock in consideration for the assignment of certain intellectual property rights to the Company. The shares are expected to be issued pursuant to an effective shelf registration statement on Form S-3 and a related prospectus supplement. The issuance of shares will reduce the remaining capacity available under the Company’s equity distribution agreement with its sales agent. In connection with this transaction, the Company filed a prospectus supplement on January 5, 2026, to register the issuance of such shares pursuant to its effective shelf registration statement.

On January 14, 2026, the Company amended the stock purchase agreement with a related party, Henry Ji, the CEO of Scilex, The amended agreement superseded the agreement dated January 4, 2026, under which no shares had been issued. The transaction will be accounted for as an asset acquisition upon closing, with the intellectual property recorded at the fair value of the equity issued. Because the agreement was executed subsequent to December 31, 2025, no amounts related to this transaction have been reflected in the accompanying consolidated financial statements.

API Media Acquisition

On January 22, 2026, the Company completed its acquisition of 100% of the outstanding equity interests of API Media Innovations Inc. (“API Media”), a New Jersey-based provider of audio and visual technologies serving the media, sports, and entertainment industries, for aggregate cash consideration of $14.0 million pursuant to a Stock Purchase Agreement dated October 28, 2025.

API Media provides multi-channel engagement solutions, digital media integration, and audience intelligence services to sports venues and enterprise clients. The acquisition is intended to expand the Company’s digital media capabilities and enhance its data monetization platform.

The acquisition will be accounted for as a business combination under ASC 805, Business Combinations. The Company is currently evaluating the preliminary purchase price allocation, including the identification and valuation of acquired intangible assets and assumed liabilities. Accordingly, the allocation of the purchase price is not yet complete.

Because the acquisition was completed subsequent to December 31, 2025, the accompanying consolidated financial statements do not include the financial position or results of operations of API Media.

Maxim ATM

As of March 17, 2026, the Company has sold 32.5 million shares of common stock under the Maxim ATM for aggregate proceeds of $28.7 million. Maxim assesses fees to the Company of 3% of proceeds and nets with gross proceeds provided to the Company.

DV Convertible Note

Subsequent to December 31, 2025, in January 2026, the Company fully repaid the outstanding balance of the DV Convertible Note owed to EOS Holdings, a related party. The repayment satisfied the remaining principal and any accrued interest outstanding under the note as of the repayment date. Following the payoff, the DV Convertible Note was extinguished and no further amounts remain outstanding under the agreement.

NYIAX Agreement and Plan of Merger

On March 18, 2026, the Company, DVLT Merger Sub, Inc., a wholly owned subsidiary of the Company (“Merger Sub”), and NYIAX entered into an Agreement and Plan of Merger (the “NYIAX Merger Agreement”), dated March 18, 2026. Pursuant to the provisions of the NYIAX Merger Agreement, on the closing date (the “Closing Date”), (i) Merger Sub will merge with and into NYIAX (the “Merger”), the separate corporate existence of Merger Sub will cease and NYIAX will continue as the surviving company and a wholly owned subsidiary of the Company, and (ii) the Company will pay to NYIAX equity holders aggregate consideration (“Merger Consideration”) of 78,947,368 shares of the Company’s common stock. The Company estimates the Merger Consideration to be $61.6 million based on an aggregate fair value using the closing stock price on March 17, 2026 of $0.78 per share.

Pursuant to the terms of the NYIAX Merger Agreement, at the effective time of the Merger (the “Effective Time”), by virtue of the Merger and without any action on the part of the stockholders of NYIAX (the “Merger Partner Stockholders”), (i) each outstanding share of NYIAX’s common stock, par value $0.0001 per share (the “NYIAX Common Stock”), other than any shares of NYIAX Common Stock held in the treasury of NYIAX will be converted into the right to receive (i) a number of shares of common stock equal to the Exchange Ratio (as defined in ther Merger Agreement), or (ii) each share of NYIAX Common Stock held immediately prior to the Effective Time by a Merger Partner Stockholder that is an Unaccredited Investor (as defined in the Merger Agreement) will be converted into the right to receive the unaccredited investor cash consideration, which will be the higher of (i) price per share equal to the VWAP (as defined in the NYIAX Merger Agreement) of the common stock for the five (5) consecutive trading days ending on the trading day immediately preceding the date of the NYIAX Merger Agreement, or (ii) price per share equal to the VWAP of the common stock for the five (5) consecutive trading days ending on the trading day immediately preceding the Closing Date.

Pursuant to the NYIAX Merger Agreement, if the Company effects or announces an intent to effect a reverse stock split of the common stock at any time within one hundred twenty (120) days following the date of the NYIAX Merger Agreement, then the Company will issue to the Merger Partner Stockholders, on a pro rata basis in accordance with their respective entitlements to the Merger Consideration, an aggregate of 10,000,000 duly authorized, validly issued, fully paid and nonassessable additional shares of common stock.

Pursuant to the terms of the NYIAX Merger Agreement, the Company has also agreed to appoint two new members to the board of directors of the board of directors of the Company, nominated by NYIAX and subject to such nominees being acceptable to the Company, effective as of the Closing Date.

The NYIAX Merger Agreement contains representations and warranties from both the Company and Merger Sub, on the one hand, and NYIAX, on the other hand, customary for a transaction of this nature. The NYIAX Merger Agreement also contains customary covenants and agreements, including with respect to the operations of the business of NYIAX and the Company between the date of the NYIAX Merger Agreement and Effective Time. The completion of the Merger will also be subject to

closing conditions, customary for a transaction of this nature. NYIAX will be subject to customary “no-shop” restrictions on its ability to solicit alternative acquisition proposals from third parties and to provide information to, and continue or participate in discussions and engage in negotiations with, third parties regarding any alternative acquisition proposals, subject to a customary “fiduciary out” provision that allows the Company, under certain specified circumstances and subject to other terms and conditions in the NYIAX Merger Agreement, to provide information to, and continue or participate in discussions and engage in negotiations with, third parties with respect to an alternative acquisition proposal if the board of directors of NYIAX (the “NYIAX Board”) (or a committee thereof) determines in good faith (after consultation with its financial advisor and outside legal counsel) that such alternative acquisition proposal either constitutes a superior proposal or is reasonably likely to lead to a superior proposal, and the NYIAX Board (or a committee thereof) has determined in good faith (after consultation with its financial advisor and outside legal counsel) that the failure to take such actions could reasonably be expected to be inconsistent with its fiduciary duties pursuant to applicable law.

Pursuant to the NYIAX Merger Agreement if, at any time during the period beginning on the Closing Date and ending on the date that is twelve (12) months following the Closing Date, the surviving corporation (as defined in the NYIAX Merger Agreement), or the Company, executed and announced a definitive commercial, strategic, joint venture, licensing, partnership, or other bona fide revenue generating or value enhancing agreement with a trading market (a “Trading Market Transaction”), approved by the the board of directors of the Company, then the Company shall issue to the Merger Partner Stockholders, on a pro rata basis in accordance with their respective ownership immediately prior to the Effective Time, an aggregate of 13,000,000 duly authorized, validly issued, fully paid and nonassessable restricted shares of common stock (the “Earn-Out Shares”). In lieu thereof, each unaccredited investor shall be entitled to receive, with respect to each share of NYIAX Common Stock held immediately prior to the Effective Time, a cash payment equal to the higher of (i) price per share equal to the VWAP of the common stock for the five (5) consecutive trading days ending on the trading day immediately preceding the Closing Date, or (ii) price per share equal to the VWAP of the common stock for the five (5) consecutive trading days ending on the trading day immediately preceding the execution and announcement of Trading Market Transaction, without interest and subject to applicable tax withholding.

From the closing, NYIAX and for a period of twelve (12) months thereafter has agreed to a special indemnity, pursuant to which NYIAX will indemnify, defend and hold harmless the Company, the surviving corporation from and against any and all losses (as defined in the NYIAX Merger Agreement) arising out of, relating to, or resulting from certain specific, enumerated claims, actions, suits, proceedings, investigations or demands against NYIAX set forth in the NYIAX Merger Agreement, including any continuation, amendment, extension or escalation thereof. Any and all losses for which indemnification is required under the NYIAX Merger Agreement will be satisfied solely by a reduction in the number of Trading Market Transaction earn-out shares otherwise issuable to the Merger Partner Stockholders pursuant to NYIAX Merger Agreement. In no event shall the aggregate number of Trading Market Transaction earn-out shares subject to reduction pursuant to the NYIAX Merger Agreement exceed 5,000,000 shares of common stock.

Pursuant to the Merger Agreement, the Company has agreed to file with the Securities and Exchange Commission a registration statement on Form S-3 (or, if the Company is not then eligible to use Form S-3, on Form S-1), within thirty (30) calendar days following the Closing Date, covering the resale of all shares of common stock issued to Merger Partner Stockholders as Merger Consideration pursuant to Merger Agreement. The Earn-Out Shares will have similar registration rights upon issuance of such shares.

The NYIAX Merger Agreement contains customary termination rights for both the Company and Merger Sub, on the one hand, and NYIAX, on the other hand, including, among others, for failure to consummate the Merger within 90 days from the signing of the NYIAX Merger Agreement.