Theranos Founder Elizabeth Holmes, Formerly Worth $4.5 Billion, Now Worth 'Nothing' Joanna Rothkopf6/01/16 10:25amFiled to: theranoselizabeth holmesbiotechforbesbillionairesworth43319EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkLast year, Elizabeth Holmes, the founder of troubled blood-testing company Theranos, was at the top of Forbes’ Richest Self-Made Women list with an estimated net worth of $4.5 billion, making her the first youngest self-made female billionaire. On Wednesday, the magazine revised its estimate to “nothing.”AdvertisementForbes wrote that its estimate was based solely on her 50 percent ownership in Theranos, which was valued at $9 billion in 2014. Without it, Holmes’s net worth looks quite different:Forbes spoke to a dozen venture capitalists, analysts and industry experts and concluded that a more realistic value for Theranos is $800 million, rather than $9 billion. That gives the company credit for its intellectual property and the $724 million that it has raised, according to VC Experts, a venture capital research firm. It also represents a generous multiple of the company’s sales, which Forbes has learned about from a person familiar with Theranos’ finances.The company has recently become the subject of a criminal investigation and potential forced moratorium in services after its blood testing methods were found to be suspect and the company had recklessly put tens of individuals (edit: 81) in danger by failing to disclose a specific hematology test’s deficiencies. Last week, Theranos announced it had voided two years of blood test results because of potential inaccuracies.