The D&O Diary has been closely following the rise in securities class actions filed in 2026 stemming from alleged market manipulation. A recently filed securities class action lawsuit against Datavault AI Inc. arises from what plaintiffs characterize as a stock-promotion campaign built around artificial intelligence, blockchain technology, quantum computing, and data-monetization opportunities. Formerly known as WiSA Technologies, Inc., the company rebranded following its acquisition of intellectual-property assets from Data Vault Holdings Inc. and promoted a business model centered on data exchanges, high-performance computing, and technology licensing.

The September 25, 2026, complaint also builds upon allegations asserted in a securities suit filed against the company a month earlier by extending the class period, adding additional corrective disclosures, and incorporating allegations concerning liquidity, financing activities, and going-concern issues. As discussed below, the Datavault AI lawsuit underscores how D&O exposure can emerge when optimistic statements about growth prospects and financing opportunities are later followed by disclosures concerning liquidity challenges and financial performance.

A copy of the September 2026 complaint against Datavault AI can be found here. The August 5, 2026, securities suit filed against the company can be found here.

The Lawsuit

On September 25, 2026, shareholders filed a securities class action lawsuit in the Eastern District of Pennsylvania against Datavault AI and certain of its executives on behalf of investors who purchased the company’s securities between September 4, 2024, and August 18, 2026. The complaint alleges that the company used a series of promotional announcements concerning emerging technologies, business partnerships, and financing initiatives to create an inflated picture of its business prospects.

According to the complaint, the first significant corrective disclosure occurred on October 31, 2025, when Wolfpack Research published a report characterizing Datavault AI as a “stock promotion” built on misleading press releases and unsupported claims regarding AI, quantum computing, Web 3.0 technology, and data monetization. The report challenged the significance of several of the company’s highly publicized partnership announcements and questioned whether the underlying business opportunities were as substantial as portrayed. According to the complaint, Datavault AI’s share price fell approximately 19.4% following the report’s publication.

On August 5, 2026, investors filed the initial securities class action lawsuit against Datavault AI based largely on the allegations raised in the October 2025 Wolfpack Research report. The complaint also alleged that company insiders sold more than 38 million shares during the class period for proceeds exceeding $73.8 million, including approximately $73.8 million in sales by the company’s CEO.

The September 2026 complaint against the company builds upon those earlier allegations and significantly broadens the scope of the case. In addition to the Wolfpack-related allegations, plaintiffs contend that Datavault AI misled investors about the value of its partnerships and financing arrangements, particularly announced funding commitments from Scilex Holding Company. According to the complaint, the company touted substantial non-dilutive financing and a “$200M+ infusion of cash without equity dilution,” only to later conduct a heavily discounted stock offering and continue raising capital through equity issuances.

The complaint further alleges that Datavault AI repeatedly portrayed its liquidity position favorably before later disclosing that substantial doubt existed regarding its ability to continue as a going concern. Plaintiffs point to a series of stock-price declines in May and August 2026 associated with financing disclosures, funding-related announcements, and ultimately the company’s August 19, 2026, earnings release, in which it reported a significant quarterly loss and disclosed ongoing going-concern issues.

Discussion

It is important to acknowledge that the Datavault AI complaints repeatedly characterize the company’s public disclosures as a campaign designed to generate investor enthusiasm through announcements involving artificial intelligence, blockchain technology, and quantum computing. However, the plaintiffs’ theory is not that the company’s AI-related technology failed. Rather, they allege that these themes were used to promote an overly optimistic picture of the company’s prospects that later unraveled through disclosures concerning its financing, liquidity, and financial condition.

D&O Diaryreaders may recall the securities suit filed against Richtech Robotics, which alleged that the company used announcements concerning an AI-related collaboration with Microsoft to “pump” its share price shortly before an at-the-market financing transaction. The Richtech complaint focused less on whether the company’s AI technology actually worked and more on whether promotional statements created an inflated picture of the company’s prospects and valuation. Similar themes appear in the Datavault AI complaints, where plaintiffs allege that highly publicized announcements concerning strategic relationships, financing opportunities, and emerging technologies helped create investor enthusiasm that was later undermined by subsequent disclosures.

The complaints’ emphasis on the Wolfpack Research report is also significant. As has been the case in a number of stock-promotion-related securities suits, a short-seller report provided both the alleged corrective disclosure and the roadmap for the litigation that followed. The case also represents the latest addition to a growing wave of market-manipulation- and stock-promotion-related securities litigation that the D&O Diary has been tracking, bringing the number of such lawsuits filed in 2026 to 16. Indeed, many of the allegations in the complaint trace directly back to Wolfpack’s contention that the company’s public statements promoted an investment thesis that was not supported by the underlying facts.

The AI component of the lawsuit appears largely incidental. To be sure, AI-related risks remain top of mind for investors, regulators, securities litigators, and D&O underwriters alike, and Datavault AI repeatedly promoted its AI-related initiatives. However, the alleged fraud does not depend on whether the company’s AI technology functioned as represented. Instead, the complaint focuses on more traditional issues involving partnership disclosures, commercialization claims, financing activities, liquidity, and financial condition. Nevertheless, because AI featured so prominently in the company’s public messaging, the case arguably belongs on the growing list of AI-related securities suits, becoming the 25th such lawsuit filed in 2026. In that sense, the matter is perhaps best viewed as AI-adjacent, with the allegations centered on conventional disclosure and business-performance issues rather than the underlying technology itself.

For D&O underwriters, the case serves as a reminder that securities exposure can arise when a company’s valuation becomes heavily dependent on promotional claims about future growth. The Datavault AI complaint alleges that investor enthusiasm was fueled by public statements concerning emerging technologies, strategic opportunities, and future prospects that ultimately proved difficult to sustain. As AI continues to attract investor and securities plaintiffs’ attention, the case underscores the risk that can arise when AI-related messaging and other technology buzzwords contribute to market expectations that are not matched by commercial execution. More broadly, the lawsuit illustrates how plaintiffs may seek to connect promotional statements, financing activities, and later operational or liquidity challenges into a narrative of stock-price inflation and investor harm.