Matthew Piehl is an associate in the Washington, D.C. office of Latham & Watkins and a member of the firm’s Antitrust & Competition Practice.

Mr. Piehl is an experienced antitrust advisor. He helps clients obtain regulatory approval of mergers and acquisitions as well as other transactions from competition authorities in the United States, including the Department of Justice and the Federal Trade Commission, and around the world. Mr. Piehl also regularly represents companies in government investigations and civil litigation.

Mr. Piehl is an active member of the American Bar Association’s Antitrust Section, where he previously served as the Young Lawyer Representative to the Trade, Sports, and Professional Associations and the Mergers & Acquisitions Committees. Mr. Piehl is also a member of the American Health Law Association, where he served in the Leadership Development Program with the AHLA’s Antitrust Practice Group. In addition, Mr. Piehl is the Chair Emeritus of the Minnesota State Bar Association’s Antitrust Section.


Bar Qualification

  • District of Columbia
  • Minnesota


  • JD, University of Virginia School of Law, 2011
  • BS in Biology, Duke University, 2008
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July 26, 2023 Recognition

Litigator of the Week Runners-Up and Shout Outs

Latham team recognized as appellate court affirms previous decisions against the US Department of Justice's challenge to U.S. Sugar's purchase of Imperial Sugar.