PHILADELPHIA — Investors in SES AI Corporation are staring at a June 26 deadline. Miss it, and the chance to lead a class action lawsuit against the battery company vanishes. The law firm Berger Montague PC filed the suit.
It claims SES AI, which makes hybrid lithium-metal batteries for electric vehicles, lied to investors for over a year. The alleged fraud ran from January 29, 2025, to March 4, 2026.
During that stretch, the company is accused of pumping up its stock by touting fake partnerships and circular deals — what the lawsuit calls “phantom” transactions. Wolfpack Research, an independent firm, dropped a report on December 9, 2025. It accused SES AI of using questionable counterparties to hide weak fundamentals.
The report cast doubt on the economic substance of the company’s partnerships. SES AI’s stock took a hit.
Then came March 4, 2026. SES AI reported logistics constraints. It issued full-year 2026 revenue guidance that fell well below what Wall Street expected.
The stock price collapsed again. Here is what is at stake. Anyone who bought SES AI shares during that 14-month window may have lost real money.
The lawsuit seeks to recover those losses. But to have a shot, someone must step forward as lead plaintiff by June 26.
That person represents the entire class of investors. They steer the case. They decide on settlements.
If no one acts, the suit may stall or weaken. Berger Montague is a national plaintiffs’ firm.
Andrew Abramowitz is the contact. He is taking calls from investors who want to know their rights. The firm has experience in securities class actions.
It knows the deadlines. The allegations are specific. SES AI did not just miss a quarter.
It is accused of systematically lying about its business. It inflated revenue expectations from partnerships that had no real substance.
It hid operational problems. It concealed that demand for its batteries was deteriorating. The Wolfpack report called these “phantom deals.” That is a strong word.
It means deals that exist on paper but not in reality. For investors, the risk is that the company’s stock was artificially high.
People bought in based on false promises. When the truth came out, the shares dropped. That gap — between the inflated price and the real price — is what the lawsuit aims to recover.
The case is in its early stages. No court has ruled on the merits. But the June 26 deadline is hard.
After that, investors who want to lead the class lose that right. They can still participate in any recovery, but they lose control of the case.
SES AI trades on the New York Stock Exchange under the ticker SES. The company develops batteries for electric vehicles and high-performance applications. That market is competitive.
Tesla, Panasonic, and LG Energy Solution are all players. SES AI needs to prove its technology works at scale.
The lawsuit says it lied about progress. For now, the clock is running. Investors have four days from this report to act.
After June 26, the lead plaintiff slot is filled. The case moves forward without them.
