Court filings from one of the investor lawsuits, meanwhile, revealed that former Secretary of Education Betsy DeVos had been among the company’s biggest investors. Ms. DeVos’s family lost $100 million—the same sum as the Cox family. Their losses were topped only by Rupert Murdoch, who lost $121 million (he got $4 million back under a legal settlement) and two Walton heirs, who had invested a combined $150 million. All told, investors in Theranos lost nearly $1 billion.
