Regulatory Technology (RegTech)
Sam Altman’s $2B+ Investments In OpenAI-Linked Companies Face Scrutiny Amid Musk Lawsuit
Updated on Thu, May 14, 2026
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TL;DR
- Court filings show Sam Altman has over $2B in stakes in companies linked to OpenAI during Elon Musk’s lawsuit.
- U.S. regulators are checking OpenAI’s rules on conflicts of interest and governance ahead of a possible IPO.
- Altman says he did nothing wrong and stepped back from related decisions.
Court documents presented during a hearing in Elon Musk’s lawsuit against OpenAI reveal that Sam Altman holds more than $2 billion in stakes in companies that have done business with OpenAI. Musk is seeking $150 billion in damages and has also called for Altman’s removal as CEO and board member, alleging breach of charitable trust and unjust enrichment. Altman has denied the allegations.
The filing also comes as 10 U.S. state attorneys general have asked the Securities and Exchange Commission to review OpenAI-related documents ahead of a possible initial public offering. In addition, the U.S. House Committee on Oversight and Government Reform has requested details on OpenAI’s policies to prevent conflicts of interest.
According to the court document, Altman’s holdings span nine companies that have business ties with OpenAI. These include a $1.7 billion stake in fusion energy company Helion Energy, a $633 million stake in financial software firm Stripe, and a $258 million stake in biotech company Retro Biosciences.
The document also shows Altman sold his stake in Reddit by the end of 2025. He previously held more than $600 million in the company when it went public in 2024.
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Other companies listed in the filing include chip maker Cerebras, people management software firm Lattice, AI device maker Humane, and AI pharmaceutical company Trialspark, now known as Formation Bio.
Altman testified that he first invested in Helion in 2015 and has known its founders for years. He also said he was “stepped back” from decisions involving related deals and did not directly sign agreements where conflicts could exist. Altman has rejected claims of wrongdoing and said standard recusal practices were followed in situations involving companies he has invested in.
First published on Thu, May 14, 2026
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