Kaplan Fox Encourages Datavault AI Inc. (DVLT) Investors to Contact the Firm Before the Lead Plaintiff Deadline on October 5, 2026

Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Datavault AI Inc. ("Datavault" or the "Company") (NASDAQ: DVLT) on behalf of investors that purchased or otherwise acquired Datavault securities between September 4, 2024 and October 30, 2025 (the "Class Period").

If you are an investor in Datavault and have suffered losses, you may CLICK HERE to contact us. You may also contact Kaplan Fox by emailing [email protected] or by calling (646) 315-9003.

DEADLINE REMINDER: If you are a member of the proposed Class, you may move the court no later than October 5, 2026 to serve as a lead plaintiff for the purported class. If you have losses we encourage you to contact us to learn more about the lead plaintiff process. You need not seek to become a lead plaintiff in order to share in any possible recovery.

The complaint alleges, among other things, that on October 31, 2025, Wolfpack Research published a short report on Datavault AI (the "Report") alleging that Datavault AI was a "stock promotion" that relied on misleading press releases and "empty claims" concerning artificial intelligence, quantum computing, Web 3.0, and data monetization. Additionally, the Complaint alleges that the Report also questioned the activity on the Company's blockchain marketplace and the Company leadership's connections with a convicted felon.

On this news, Datavault AI's stock price fell $0.49 per share, or 19.44%, to close at $2.03 per share on October 31, 2025.

Kaplan Fox & Kilsheimer LLP is a nationally recognized law firm focused on complex litigation, with offices in New York, Oakland, Los Angeles, Chicago, and New Jersey. Founded in 1956, the firm has spent more than 50 years prosecuting securities, antitrust, and consumer protection actions in federal and state courts nationwide, recovering more than $10 billion for clients and the classes it has represented.

Kaplan Fox is widely regarded as one of the nation's premier plaintiffs' securities litigation firms and has received recognition from Chambers and Partners, Benchmark Litigation, Super Lawyers, and Lawdragon. Serving as lead or co-lead counsel in many landmark cases, the firm has secured some of the largest recoveries in the history of securities litigation, including a $2.425 billion recovery on behalf of Bank of America shareholders in In re Bank of America -the largest recovery ever obtained for claims under Section 14(a) of the Securities Exchange Act-$800 million recovered for the Arkansas Teacher Retirement System and other pension funds in ATRS v. Allianz Global Investors, and a $475 million settlement in In re Merrill Lynch.

For decades, Kaplan Fox has represented public pension funds, institutional investors, businesses, and individuals in high-stakes litigation. Through its successful advocacy and precedent-setting victories, the firm has helped shape important areas of securities and corporate law while advancing accountability and protecting investor interests.

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If you have any questions about this Notice, your rights, or your interests, please contact:

CONTACT: Pamela A. Mayer KAPLAN FOX & KILSHEIMER LLP 800 Third Avenue, 38th Floor New York, New York 10022 (646) 315-9003 [email protected] Laurence D. King KAPLAN FOX & KILSHEIMER LLP 1999 Harrison Street, Suite 1501 Oakland, California 94612 (415) 772-4704 [email protected]

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