John Terzaken

Simpson Thacher & Bartlett (Washington DC)
Lawyer (Parter)

John Terzaken is a Partner in the Firm’s Litigation Department. John represents domestic and international clients in government enforcement and private litigation of cartel and other alleged antitrust violations, market sector investigations and antitrust compliance, encompassing all major industry sectors, including financial institutions, pharmaceutical, professional services, manufacturing, energy, shipping, food and beverage and many others. From 2010 to 2012, John held a leading position in the DOJ’s Antitrust Division as Director of Criminal Enforcement, where he oversaw the Division’s criminal enforcement nationwide. His range of responsibilities included presiding over some of the largest global cartel investigations ever undertaken by the DOJ. He also served as the Division’s chief liaison with domestic and international law enforcement authorities, as well as the Financial Fraud Coordinator for inter-agency prosecutions and investigations. John’s DOJ service earned him awards of distinction from the Attorney General of the United States and the Assistant Attorney General for the Antitrust Division. He has earned awards of distinction from the Attorney General of the United States and the Assistant Attorney General for the Antitrust Division. He has also been ranked as a leading lawyer by Chambers USA, The Legal 500 United States and Super Lawyers. John is a member of the Antitrust Sections of the American Bar Association (ABA) and International Bar Association (IBA) and is serving an appointment by the ABA as Vice Chair for the Cartel and Criminal Practice Committee. He regularly writes and speaks on antitrust matters for industry publications and events. John received his J.D. from University of Virginia School of Law, where he was on the Editorial Board of the Virginia Law Review. He received his B.A., magna cum laude, from American University in 1996.


Auteurs associés

University Paris II Panthéon‑Assas
French State Council (Paris)
Jones Day (Brussels)
Geradin Partners (Brussels)
ESSEC Business School (Cergy)
United Kingdom’s Competition Authority - CMA (London)
RBB Economics (Brussels)


John Terzaken - Allen & Overy
John Terzaken 29 mai 2015 Washington, DC


1158 Revue

John Terzaken, Laurence Idot, Maurice Stucke, Molly Kelley Private enforcement : La vague viendra-t-elle de Bruxelles, de Londres, de Paris ou d’ailleurs ? (New Frontiers of Antitrust, Paris, 22 février 2013)


La troisième table-ronde de la conférence “Demain la concurrence” du 22 février 2013 à Paris, était dédiée à « Private Enforcement, la vague viendra-t-elle de Bruxelles, Londres, Paris ou d’ailleurs ? ». Dans la première contribution, Laurence Idot, professeur à l’Université Paris II dresse un bilan des (...)


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