Sources and filings: Sam Altman's net worth reaches $1B, driven by startup investments in Reddit, Stripe, YC companies, and others, despite no equity in OpenAI (Forbes)

Forbes:

Sources and filings: Sam Altman’s net worth reaches $1B, driven by startup investments in Reddit, Stripe, YC companies, and others, despite no equity in OpenAI  —  CEO Sam Altman famously has no equity in OpenAI, but startup bets like Reddit, Stripe and Helion have made him a billionaire anyway, a Forbes investigation found.