SES AI Corporation (NYSE: SES) faces a securities fraud lawsuit after its stock fell 36.8 percent on weak revenue guidance and operational warnings.
The complaint alleges that SES AI misled investors by failing to disclose that certain partnership agreements lacked genuine economic substance and that underlying product demand was deteriorating.
The battery technology firm’s stock dropped on March 5, 2026, after it guided for 2026 revenue of $30 million to $35 million, well below the $51.67 million analysts expected. The company also disclosed that $1.5 million in fourth-quarter shipments were delayed by logistics constraints.
The lawsuit covers investors who purchased shares between January 29, 2025, and March 4, 2026, with a June 26, 2026, deadline to seek lead plaintiff status. The case centers on allegations the company used "phantom deals" to mask declining business fundamentals.
The legal action follows a report from Wolfpack Research on December 9, 2025, which first alleged that SES AI was relying on questionable deals with circular or related-party counterparties to inflate its business prospects. Law firms including Berger Montague and Faruqi & Faruqi are now representing investors in the matter.
According to the class action filing, the company's public statements and partnership announcements created a misleadingly positive view of its operational health and ability to generate projected revenue. This ultimately led to significant investor losses when the company's revised guidance revealed the weaker-than-stated position.
The 36.8 percent single-day share price decline represented a loss of $0.63 per share, erasing significant market value. The legal proceedings will now move toward the court's appointment of a lead plaintiff to represent the class of affected shareholders.
The sharp stock decline places shares at their lowest level since the period covered by the lawsuit began. Investors will now watch the court proceedings leading up to and following the June 26 lead plaintiff deadline for the next developments.
This article is for informational purposes only and does not constitute investment advice.