John Terzaken

Global Co-Chair of the Firm’s Antitrust and Trade Regulation Practice, John represents clients involved in government enforcement of antitrust, fraud and other white collar violations, as well as related follow-on civil litigation. His experience spans market sector investigations and litigation in all major industries. John previously served as the Director of Criminal Enforcement for the Antitrust Division of the U.S. Department of Justice, where he oversaw the Division’s criminal enforcement and litigation nationwide. He has earned awards of distinction from the Attorney General of the United States and the Assistant Attorney General for the Antitrust Division. In addition to authoring an annual Global Cartel Enforcement Report published by Simpson Thacher, he regularly writes and speaks on antitrust matters for industry publications and events, including serving as the Co-Editor of The Cartels and Leniency Review.

Partner, Simpson Thacher. Former Director of Criminal Enforcement in Department of Justice’s Antitrust Division.