According to Odaily Planet Daily, although OpenAI's CEO Sam Altman does not hold shares in OpenAI, he is one of the most prolific individual investors in Silicon Valley. It is reported that Altman's net worth recently exceeded the $2 billion mark. He has invested in more than 400 companies, and as of the beginning of this year, his shares in these companies are worth at least $2.8 billion. Altman's investment companies include payment company Stripe, short-term rental platform Airbnb, social news forum Reddit, and Musk's brain-computer interface company Neuralink.