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John Carreyrou

Pulitzer Prize-winning investigative journalist and author of the New York Times bestseller Bad Blood

  • About John Carreyrou

    In his New York Times bestselling book Bad Blood, John Carreyrou shares the full inside story of the breathtaking rise and shocking collapse of the one-time multi-billion-dollar Silicon Valley company that rose to fame with the promise of blood-testing technology that never existed. In 2014, Theranos founder and CEO Elizabeth Holmes was widely seen as the female Steve Jobs: a brilliant Stanford dropout whose startup “unicorn” promised to revolutionize the medical industry with a machine that would make blood testing significantly faster and easier. Backed by investors such as Larry Ellison and Tim Draper, Theranos sold shares in a fundraising round that valued the company at more than $9 billion, putting Holmes’s worth at an estimated $4.7 billion. There was just one problem: The technology didn’t work.

    With meticulously researched and detailed reporting, John Carreyrou provides insight into Theranos’s intensely charismatic, secretive, and ambitious founder, and the very real harm that resulted from her false claims. In his lectures, Carreyrou tells the riveting story of the biggest corporate fraud since Enron, and exposes the ecosystem of investors, journalists, and regulators that allowed it to flourish.

    John Carreyrou has won a Pulitzer Prize for Investigative Reporting with several colleagues for a series of articles exposing fraud and abuse in Medicare. Earlier in his career, he was also part of a  team that won a Pulitzer Prize for Explanatory Reporting for its coverage of corporate scandals. For his extensive coverage of Theranos, Carreyrou was awarded the George Polk Award for Financial Reporting, the Gerald Loeb Award for Distinguished Business and Financial Journalism in the category of beat reporting, and the Barlett & Steele Silver Award for Investigative Business Journalism.

    Bad Blood was also named the Financial Times and McKinsey Business Book of the Year. The HBO documentary based on the Theranos story, The Inventor, was directed by Academy Award winner Alex Gibney and premiered at Sundance. A graduate of Duke University, Carreyrou lives in Brooklyn, New York, with his wife and three children. He currently is a reporter for the New York Times Business Investigations team.

    Contact us to learn more about booking John Carreyrou for your next event.

  • Speaking Topics

    Bad Blood

    In this talk, Carreyrou discusses the ethical lapses, the credulous media coverage, and the lax oversight that allowed Theranos to achieve a “unicorn” valuation of $9 billion, and shares lessons companies, journalists, and future business leaders can learn from its fall.

  • Video

  • Praise for John Carreyrou


    [John Carreyrou’s] talk was just wonderful – it was a fascinating and dynamic discussion, and we had a great mix of business and journalism students. I am so grateful for all you have done to work with us. It was a fantastic evening – he was really amazing!

    Loyola Marymount University

    We had a captivated audience, many of whom had read John’s book and had very insightful questions. I also spoke with a few attendees who really enjoyed his session.

    Institutional Investor Conference Group

    The event was very successful. John was very well-received, and the audience was very engaged throughout.

    University of Notre Dame

    Everything went very well last night with John’s talk! We had a full house. John spoke without notes, which was pretty amazing considering how complex the subject is. He recited dates, names and situations, and eloquently told the story. I had read the book a few months ago, and he really brought it all to life. I especially enjoyed when he shared side stories that weren’t included in the book to give us a personal, “inside” scoop.  It was just thrilling for me and all the others to be in the presence of someone who went after such an important story – and wouldn’t quit until he had the facts.  It was a wonderful evening with so many thankful guests who thoroughly enjoyed his talk.  Thank you so much for all your help in putting it together!

    Santa Clara County Library District

    Praise for Bad Blood

    [A] chilling, third-person narrative of how Holmes came up with a fantastic idea that made her, for a while, the most successful woman entrepreneur in Silicon Valley… Prizewinning Wall Street Journal reporter John Carreyrou tells [this story] virtually to perfection… [His] description of Holmes as a manic leader who turned coolly hostile when challenged is ripe material for a psychologist… His recounting of his efforts to track down sources—many of whom were being intimidated by Theranos’s bullying lawyer, David Boies—reads like a West Coast version of All the President’s Men.

    Roger Lowenstein, The New York Times Book Review

    Eye-opening… A vivid, cinematic portrayal of serpentine Silicon Valley corruption… A deep investigative report on the sensationalistic downfall of multibillion-dollar Silicon Valley biotech startup Theranos. Basing his findings on hundreds of interviews with people inside and outside the company, two-time Pulitzer Prize-winning Wall Street Journal reporter Carreyrou rigorously examines the seamy details behind the demise of Theranos and its creator, Elizabeth Holmes… [Carreyrou] brilliantly captures the interpersonal melodrama, hidden agendas, gross misrepresentations, nepotism, and a host of delusions and lies that further fractured the company’s reputation and halted its rise.


    Crime thriller authors have nothing on Carreyrou’s exquisite sense of suspenseful pacing and multifaceted character development in this riveting, read-in-one-sitting tour de force…. Carreyrou’s commitment to unraveling Holmes’ crimes was literally of life-saving value.

    Booklist (starred review)

    Carreyrou blends lucid descriptions of Theranos’s technology and its failures with a vivid portrait of its toxic culture and its supporters’ delusional boosterism. The result is a bracing cautionary tale about visionary entrepreneurship gone very wrong.

    Publishers Weekly (starred review)

    In exposing the fudged numbers, boardroom battles and sickening sums of money tossed Theranos’ way, Bad Blood succeeds in highlighting Silicon Valley’s paradoxical blind spot. Insular corporate culture and benevolent media coverage have allowed a monster to grow in the Valley—one that gambles not just with our smart phones or our democracy, but with people’s lives. Bad Blood reveals a crucial truth: outside observers must act as the eyes, the ears and, most importantly, the voice of Silicon Valley’s blind spot.

    B. David Zarley, Paste Magazine’s “16 Best Nonfiction Books of 2018”

    Engrossing… Bad Blood boasts movie-scene detail… Theranos, Carreyrou writes, was a revolving door, as Holmes and Balwani fired anyone who voiced even tentative doubts… What’s frightening is how easy it is to imagine a different outcome, one in which the company’s blood-testing devices continued to proliferate. That the story played out as it did is a testament to the many individuals who spoke up, at great personal risk.

    Jennifer Couzin-Frankel, Science

    In Bad Blood, acclaimed investigative journalist John Carreyrou, who broke the story in 2015, presents comprehensive evidence of the fraud perpetrated by Theranos chief executive Elizabeth Holmes… He unveils many dark secrets of Theranos that have not previously been laid bare… The combination of these brave whistle-blowers, and a tenacious journalist who interviewed 150 people (including 60 former employees) makes for a veritable page-turner.

    Eric Topol, Nature

    Even if you didn’t follow the story of charismatic Theranos founder Elizabeth Holmes (and the ensuing trainwreck) in the news, you will find yourself zipping through a book that proves once again that fact is stranger than fiction. A stunning look into a high-tech hoodwinking; like a high-speed car chase in a book.

    The New York Post’s “28 Most Unforgettable Books of 2018

    A great and at times almost unbelievable story of scandalous fraud, surveillance, and legal intimidation at the highest levels of American corporate power. . . . The story of Theranos may be the biggest case of corporate fraud since Enron. But it’s also the story of how a lot of powerful men were fooled by a remarkably brazen liar.

    Yashar Ali, New York Magazine

    The definitive account of Theranos’s downfall, detailing its motley crew of executives, legal knife fights, dramatic PR stunts, and skullduggery… Offers a lot for foreign-policy wonks… While Bad Blood is worth reading for its own merits—it’s a stunning feat of journalism that reads like a thriller—it also says a lot about Washington’s facile relationship with Silicon Valley. Most D.C. power brokers know next to nothing about science or technology but increasingly view Silicon Valley tech as a deus ex machina for some of the world’s most complicated challenges. Bad Blood offers a sobering warning of where that type of thinking can lead.

    Robbie Gramer, Foreign Policy

    You will not want to put this riveting, masterfully reported book down. No matter how bad you think the Theranos story was, you’ll learn that the reality was actually far worse.

    Bethany McLean, bestselling coauthor of The Smartest Guys in the Room and All the Devils Are Here
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