Michael L. Weiner


Michael L. Weiner


New York | Three Bryant Park, 1095 Avenue of the Americas, New York, NY, United States of America 10036-6797
+1 212 698 3608 | +1 212 698 3599

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Michael L. Weiner, Co-Leader of Dechert’s Antitrust/Competition Practice Group, provides strategic advice, resolves government investigations and effectively litigates for clients with antitrust issues in a broad range of industries.

He has significant experience in successfully completing complex merger transactions, having represented Yahoo!, Inc. in its joint venture of its internet search business, Avis in its acquisition of Budget, Genzyme in its acquisition of Ilex Oncology, Centennial Communications in its acquisition by AT&T, and Rural Cellular in its acquisition by Verizon Wireless.

In his litigation work, Mr. Weiner has represented clients in price-fixing and other antitrust class actions in a variety of industries, including insurance (AXIS Specialty Insurance Company and AXIS Surplus Insurance Company), real estate brokerage (Realogy Corp.), art auctions (Christie’s, Inc.) and magnesite (China Minmetals Corporation and China National Minerals Co., Ltd). He represented Travelport Inc. in a high-profile, bet-the-company monopolization and antitrust conspiracy lawsuit with American Airlines.

Mr. Weiner has been recognized for his work by legal referral guide Chambers USA, where he was “praised by commentators who note that ‘he is extremely knowledgeable on substantive antitrust law, and better yet, he’s easy to work with.’” Chambers USA also wrote that Mr. Weiner has won “particular acclaim” for his “M&A expertise” and is also noted for providing “thoughtful guidance” by commenters who consider him “extremely knowledgeable” and “extremely practical.” Mr. Weiner has also been named a national and New York “litigation star” in Benchmark Litigation, “recommended” in Legal 500, named a “thought leader” by International Who’s Who of Competition Lawyers, and listed in Chambers Global, Global Counsel Handbooks’ Competition Law, as well as in The Best Lawyers in America. He was also featured (a number of years ago) in Global Competition Review’s “45 Under 45 Survey of International Competition Lawyers.”

He currently serves as Chair of the New York State Bar Association's Antitrust Section and is a frequent speaker and author on a wide range of antitrust/competition issues. He sits on the editorial board of World Competition Law and Economics Review and is the former editorial chair of ANTITRUST magazine (1994-1998), as well as a former Council Member and Officer of the ABA’s Antitrust Section.

  • University of Pennsylvania, B.A., 1976, cum laude
  • Georgetown University Law Center, J.D., 1980, magna cum laude
  • New York
  • Law360 Competition Editorial Advisory Board Member
  • New York State Bar Association Antitrust Section Chair and Executive Committee member
  • ABA Antitrust Section former Secretary and Chief Communications Officer and Council Member
  • Former Antitrust Magazine Editor-in-Chief