Altman Holds More Than $2 Billion in OpenAI-Linked Companies, Court Filing Shows

OpenAI CEO Sam Altman holds stakes worth more than $2 billion in companies that have done business with OpenAI, according to a court document presented May 12, 2026, as he faces conflict-of-interest claims from Elon Musk, state attorneys general and a U.S. congressional inquiry. The filing, shown during hearings in Musk’s lawsuit seeking $150 billion in damages and Altman’s removal, listed nine companies with OpenAI ties as of December 31, 2025. Holdings included $1.7 billion in fusion company Helion Energy, $633 million in Stripe and $258 million in Retro Biosciences. Other companies included Cerebras, Lattice, Humane, Software Applications and Formation Bio. Altman has denied wrongdoing and said he recused himself from relevant negotiations. Ten Republican state attorneys general asked the SEC on May 12, 2026, to scrutinize OpenAI documents ahead of an expected IPO. The SEC declined to comment. The House Oversight Committee also sought information on OpenAI conflict-of-interest policies.