Sam Altman, the chief executive of OpenAI, reportedly owns more than $2 billion in equity stakes across companies that have conducted business with OpenAI, according to newly disclosed court documents tied to Elon Musk’s ongoing lawsuit against the AI company.
The disclosures emerged during the high-profile legal battle between Elon Musk and OpenAI, where Musk alleges that the organization abandoned its original nonprofit mission and enabled executives, including Altman, to benefit financially from commercial partnerships.
Court Documents Detail Altman’s Investments
According to the court filings presented during the trial, Altman held significant financial stakes in at least nine companies that later entered into commercial agreements with OpenAI.
The largest disclosed holding was a reported $1.7 billion stake in Helion Energy, a fusion energy startup that has collaborated with OpenAI on future power infrastructure discussions.
The filing also revealed Altman owned approximately $633 million worth of shares in Stripe, along with a $258 million stake in Retro Biosciences. Both companies have reportedly maintained business relationships with OpenAI.
Additional investments named in the filings included AI chipmaker Cerebras, workplace software firm Lattice, AI device startup Humane, and pharmaceutical technology company Formation Bio.
Altman Says He Recused Himself From Decisions
During testimony, Altman acknowledged potential conflicts of interest but stated he recused himself from discussions and decisions involving companies in which he held investments.
Altman also emphasized that he does not personally own equity in OpenAI itself, despite leading the company through its explosive growth following the launch of ChatGPT.
Court documents and financial disclosures estimate Altman’s broader net worth at roughly $4 billion, largely built through venture capital investments made during and after his time at Y Combinator.
Elon Musk Lawsuit Intensifies Scrutiny
The investment disclosures surfaced as Musk’s lawsuit against OpenAI enters a critical phase in federal court. Musk, who co-founded OpenAI alongside Altman in 2015, argues the company shifted away from its original nonprofit mission in favor of commercial expansion and investor enrichment.
Musk is reportedly seeking up to $150 billion in damages and has also pushed for Altman’s removal from OpenAI leadership.
The trial has included testimony from former OpenAI executives and board members, some of whom criticized Altman’s management style and handling of corporate governance.
Republicans and Lawmakers Request Investigations
The controversy is also attracting attention from U.S. lawmakers and regulators. According to Reuters, ten Republican state attorneys general recently asked the U.S. Securities and Exchange Commission to examine OpenAI’s disclosures and governance practices ahead of a potential public offering.
Separately, the U.S. House Committee on Oversight and Government Reform reportedly requested information regarding OpenAI’s safeguards against conflicts of interest involving executives and affiliated companies.
The SEC has not publicly commented on the requests.
OpenAI Faces Growing Corporate Governance Questions
The revelations come at a time when OpenAI is rapidly expanding its influence across artificial intelligence, infrastructure, energy, and enterprise software sectors. The company is involved in massive AI infrastructure projects, including the multi-billion-dollar Stargate initiative backed by SoftBank and Oracle.
Questions surrounding executive investments and corporate governance have intensified since Altman’s brief removal and reinstatement as OpenAI CEO in late 2023.
Despite the scrutiny, OpenAI remains one of the world’s most valuable private AI companies, with growing partnerships across cloud computing, finance, biotech, and energy industries.
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