Covington & Burling (San Francisco)

Phillip H. Warren

Covington & Burling (San Francisco)
Lawyer (Partner)

Phillip Warren focuses his practice on international cartel matters and before joining Covington & Burling most recently served as Chief of the San Francisco Office, Antitrust Division, U.S. Department of Justice from 2002-2014. He has more than 30 years of antitrust enforcement experience and has led or supervised more than 50 international cartel investigations. e worked with Deputy Assistant Attorneys General for Criminal Enforcement on developing all aspects of international cartel enforcement policy, including applications of Division’s Leniency Policy, policies for negotiating plea terms with corporations and executives, and practices for coordinating investigations with foreign enforcement authorities. In addition to Mr. Warren’s significant cartel experience he also has an extensive background in civil antitrust enforcement. He reviewed and approved all staff analyses of premerger filings involving California-based high-technology firms, and oversaw all aspects of preliminary inquiries and Second Requests of proposed transactions that raised potential competitive issues. Prior to his position as Chief, Mr. Warren was a trial attorney and then served as the Assistant Chief in the office from 1997 to 2002. Mr. Warren is a regular public speaker on cartel enforcement both in the U.S. and around the world and has been a speaker or panelist addressing cartel enforcement-related issues at numerous ABA events over the last 20 years. He currently serves on the International Cartel Task Force of the American Bar Association (ABA) Antitrust Section.


Auteurs associés

Covington & Burling (Washington)
Covington & Burling (London)
Covington & Burling (Brussels)
Covington & Burling (Washington)
Covington & Burling (Washington)


205 Bulletin

Steven Fagell, Thomas O. Barnett, Anne Y. Lee, Phillip H. Warren, Derek Ludwin, Ross A. Demain The US DoJ remains committed to prosecuting collusion in labor markets to reduce employee wages (Neeraj Jindal)


On December 10th, the Antitrust Division of the U.S. Department of Justice announced its first criminal indictment targeting an alleged conspiracy to reduce employee wages. The DOJ charged the former owner of a therapist staffing company with conspiring to reduce pay rates for healthcare worker (...)

Peter D. Camesasca, Johan Ysewyn, Laurie-Anne Grelier, Phillip H. Warren, Michael J. Fanelli, Derek Ludwin The EU Court of Justice confirms that the exchange of sensitive information could constitute a cartel (Dole Food)


In an important ruling rendered March 19, 2015 in the Bananas case, the EU’s top court definitively upheld the EU Commission’s expansive view of cartel conduct and held that no “fix” (as in agreement) is needed for the EU to conclude that cartel activities have occurred. It is no secret that the (...)

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