Sources and filings detail Sam Altman’s investment portfolio as he and his venture funds have invested in 400+ companies and his holdings are worth $2.8B+ (Wall Street Journal)

Wall Street Journal:
Sources and filings detail Sam Altman's investment portfolio as he and his venture funds have invested in 400+ companies and his holdings are worth $2.8B+  —  Many companies backed by CEO do business with the ChatGPT maker and benefit from the AI boom driven by the blockbuster startup, raising questions of conflicts