Peter Guryan

Simpson Thacher & Bartlett (New York)

Peter Guryan is a Partner resident in the Firm’s New York office and a member of the Firm’s Antitrust Practice. Peter has 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 Simpson Thacher, Peter was a partner at Fried Frank. He began his career at the Antitrust Division of the Department of Justice where he played a significant role in the successful challenge of the proposed merger between WorldCom and Sprint. In addition, he was a law clerk to the Honorable Harold A. Ackerman on the United States District Court for the District of New Jersey. Peter is admitted to the bar in New York and to practice before the United States District Court for the Southern District of New York. He received his J.D., cum laude, in 1996 from Cornell Law School and his B.A. in 1992 from Cornell University.

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Simpson Thacher & Bartlett (London)
Simpson Thacher & Bartlett (Washington)


244 Bulletin

Bernard (Barry) A. Nigro Jr., Peter Guryan, Richard Park The US DoJ challenges consummated a $5 million merger in the voting equipment systems industry (Election Systems and Software / Premier Election Solutions)


On March 8, 2010, the Antitrust Division of the Department of Justice (the "DOJ") and nine states announced a settlement in their challenge of Election Systems & Software Inc.’s ("ES&S") $5 million acquisition of Premier Election Solutions, Inc. and PES Holdings, Inc. ("Premier"). At (...)


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