Simpson Thacher & Bartlett LLP

Litigation/Antitrust

Peter Guryan, Global Co-Chair of the Firm’s Antitrust and Trade Regulation Practice, is a leading antitrust lawyer with extensive experience in civil and criminal antitrust matters for major corporations and private equity firms. He has represented clients in obtaining antitrust approvals in numerous high-profile and challenging transactions, often global in scope, and in other government antitrust investigations before the Department of Justice, the Federal Trade Commission and competition authorities outside of the United States. Prior to joining private practice, Peter was a trial attorney in the Antitrust Division of the Department of Justice. Peter is consistently recognized as a leading antitrust lawyer by Chambers USA and The Legal 500, where sources describe him as “a careful and considered lawyer” who is “extremely bright and business friendly” and “gives very nuanced advice on how law and business interact.” Peter was recently shortlisted for “Dealmaker of the Year” by Global Competition Review in its GCR 2024 Awards.

Cornell Law School, 1996 J.D. cum laude Cornell University, 1992 B.A.