During cross-examination in Elon Musk's lawsuit against OpenAI, co-founder and President Greg Brockman revealed his nearly $30 billion stake in the company and financial connections to CEO Sam Altman, including stakes in Altman-backed startups and Altman's family fund from 2017. The trial, now in its second week in Oakland, California, stems from Musk's claims that OpenAI deviated from its nonprofit origins after raising over $100 billion, including a $10 billion Microsoft investment. Brockman affirmed Microsoft's investment as the only one of its size during testimony.