Samuel Bars

In October 2015 investigative reporter John Carreyrou of The Wall Street Journal questioned the validity of Theranos' technology. The company faced a string of legal and commercial challenges from medical authorities, investors, the U.S. Securities and Exchange Commission (SEC), Centers for Medicare and Medicaid Services (CMS), state attorneys general, former business partners, patients, and others. By June 2016, it was estimated that Holmes's personal net worth had dropped from $4.5 billion to virtually nothing. The company was near bankruptcy until it received a $100 million investment from Fortress Investment GroupFortress Investment Group in 2017. In September 2018, the company ceased operations.