Antitrust Litigation | McDermott Antitrust Class Action Defense

Antitrust Litigation


Antitrust investigations and litigation have always posed significant challenges to a company’s ongoing operations and future profits. These threats have grown significantly in recent years, as a result of increased class action litigation, and the efforts of the plaintiffs’ bar to expand private litigation rights and collective redress.

Our antitrust litigators at McDermott have substantial experience in a wide variety of antitrust litigation, including actions involving claims monopolization, cartels, tying, dealer terminations, antitrust counterclaims in patent and trademark litigation, price fixing, and litigated challenges to mergers and acquisitions. Our lawyers regularly represent clients before international and national regulatory agencies, including the US Federal Trade Commission (FTC) and Department of Justice (DOJ), as well as the European Commission Directorate General for Competition (DG Competition) and Chinese competition authorities. We also represent clients in litigation in US, European and Chinese courts.

Show More


  • Represented Kent Thiry in a Denver trial re: non-solicitation agreements (United States v. DaVita, Inc., 1:21-cr-00229-RBJ (D. Colo. Mar. 21, 2022))
  • Defended an American multinational technology company against monopolization claims brought by the publisher of a video game
  • Represented Constellation Brands in a challenge to its acquisition of Modelo US (Edstron v. Anheuser-Busch Inbev SA/NV, 137 S. Ct. 258, 196 L. Ed. 2d 136 (2016))

Show More


A diverse, global network of industry-leading talent committed to you and your vision.