U.S. Attorney's Office investigated Holmes

On June 15, 2018, following an investigation by the U.S. Attorney's Office for the Northern District of California in San Francisco that lasted more than two years, a federal grand jury indicted Holmes and former Theranos chief operating officer and president, Ramesh "Sunny" Balwani, on nine counts of wire fraud and two counts of conspiracy to commit wire fraud. Both pleaded not guilty. Prosecutors allege that Holmes and Balwani engaged in two criminal schemes, one to defraud investors, the other to defraud doctors and patients.