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. By Alex Konrad and Phoebe Liu, Forbes Staff In the summer of 2017, Superhuman CEO Rahul Vohra started frantically messaging his investors one by one. His startup had tested out a pending update to Google’s web browser Chrome, and, due to one seemingly innocuous code change, Superhuman’s smart email service had broken overnight. The dam...