Bill Gates just sold 65% of his Microsoft stock holdings. A massive sell-off. At a time when Infra as a Service (IaaS) is rapidly replacing SaaS, PaaS, and almost all other software and white-collar businesses, Gates actually sold shares of one of the world's top IaaS companies. Truly living up to his consistent habit of selling too early. When Microsoft IPO'd, Gates held 49% of its stock. If he hadn’t kept selling too early, his net worth would now be $1.5 trillion. The richest person in the world! But because of selling too early, his net worth is now just barely $100 billion.