Multiple law firms and investor-rights services announce that SES AI Corporation (NYSE: SES) is facing a securities class action alleging violations of federal securities laws. The notices state that the lawsuit was filed on behalf of investors who purchased SES securities during a defined class period running from January 29, 2025 through March 4, 2026 (inclusive). The allegations cited across the announcements reference Section 10(b) and Section 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5. Several outlets also emphasize that eligible investors with losses exceeding $100,000 may have the opportunity to serve as lead plaintiff, and that interested shareholders must file applications by a stated deadline of June 26, 2026. The announcements identify different firms as participants in the process—such as The Rosen Law Firm, Schall Law Firm, DJS Law Group, Levi & Korsinsky, and ClaimsFiler—each issuing reminders about filing rights and lead-plaintiff selection procedures. One notice includes criticism of investor communications and performance-related outcomes described in the filing, but all sources broadly align on the existence of the class action, the alleged statutory violations, the class period dates, and the June 26, 2026 lead-plaintiff deadline.