The former Stanford computer science professor received global acclaim as a co-founder of online education company Coursera. But these days, health care occupies most of her time. She founded Insitro in 2018 — reportedly the first company to base all of its drug discovery on AI. Last March, the South San Francisco startup announced $400 million in Series C funding. All told, the company has raised more than $640 million in less than four years, and has also inked drug discovery deals with Gilead Sciences and Bristol Myers Squibb.