SES AI Faces Investor Class Action as Firms Recruit Lead Plaintiffs

Overview

• Plaintiff firms, which issued notices Thursday through Saturday, are seeking lead-plaintiff applicants for Patel v. SES AI pending in the U.S. District Court for the District of Massachusetts.
• The putative class period spans January 29, 2025 through March 4, 2026 for buyers of SES AI securities.
• The complaint claims SES AI overstated its outlook by touting deals with entities that had little or no operations and by creating the appearance of revenue through transactions tied to Molecular Universe.
• It further alleges logistics constraints hurt fourth-quarter 2025 revenue, and weaker 2026 guidance announced March 4 was followed by a roughly 36–37% stock drop on March 5.
• The allegations have not been proven, and the case will next turn to lead-plaintiff selection before potential motions and discovery that could shape any recovery for investors.