Matt Tripolitsiotis

Matt takes a pragmatic approach to resolving high-stakes litigation that has earned him recognition from his peers and brings value to his clients. According to Chambers USA independent research, he is a “fantastic litigator with incredible depth of knowledge and professionalism.”

An alumnus of Boies Schiller Flexner LLP, Matt specializes in handling a client’s most complex matters. He served as a court-appointed member of the Steering Committee prosecuting multidistrict litigation on behalf of purchasers forced to overpay for life-saving EpiPens. His work in that matter led to settlements of more than $600 million for his EpiPen clients. He has also been a core member of the legal team on some of the nation’s highest-profile matters. Most notably, these matters included recouping $4 billion for American Express from Visa and MasterCard—the largest ever settlement for a single antitrust plaintiff—and representing a nationwide consumer class against Volkswagen based on the installation of an emissions testing defeat device, which resulted in a partial settlement valued at approximately $15 billion.

In addition to these litigations, Matt has counseled his clients in a wide variety of subject matters, including antitrust, contract, corporate governance, class action, entertainment, land use/real estate, intellectual property, securities, and estate litigation.

Matt is recognized as a leading New York Antitrust practitioner by Chambers USA, which quoted a client as saying, “Matt is extremely sharp, responsive and shows an impressive attention to detail.”

Matt’s writing on the compact clause of the Constitution was published in the Yale Law & Policy Review and has been cited as authority by multiple courts. In addition to constitutional law, Matt’s academic interests include political science, mediation, and land use. He also sits on a local Zoning Board of Appeals.

* Licensed to practice in New York and Connecticut only.


University of Pennsylvania Law School, J.D.

University of Pennsylvania, M.G.A.

Villanova University, B.A.

Admissions & Honors


New York

United States Supreme Court

United States Court of Appeals, Second Circuit

United States Court of Appeals, Sixth Circuit

United States District Court, District of Colorado

United States District Court, District of Connecticut

United States District Court, Southern District of New York

United States District Court, Eastern District of New York

United States District Court, Eastern District of Michigan

Outstanding Antitrust Litigation Achievement in Private Law Practice, American Antitrust Institute

Chambers & Partners, N.Y. Antitrust, Mostly Plaintiff, Band 2

SuperLawyers NY, Rising Star

Lawdragon 500 Leading Plaintiff Consumer Lawyers, 2024

Lawdragon 500 Leading Plaintiff Financial Lawyers, 2024

Representative Cases

Representing national RICO and state antitrust classes of purchasers in successfully obtaining more than $600 million from the maker and distributor of EpiPen

Prosecuting and settling a nationwide class action against Volkswagen for its installation of an emissions testing defeat device, resulting in a settlement valued at more than $15 billion

Representing American Express in obtaining $4 billion of relief for the settlement of antitrust claims against Visa and MasterCard

Successfully defending American Express in antitrust actions brought by the U.S. Department of Justice, state attorneys general, and certain merchants regarding American Express's non-discrimination provisions

Representing class plaintiffs in their successful suit against Blue Cross and Blue shield for antitrust violations

Defeating a motion for temporary restraining order/preliminary injunction that sought to undue the proper dissolution of a company and funding for a $200 million lawsuit

Winning appeal regarding the right of Cayman shareholders to bring derivative actions in New York courts

Winning-and successfully defending on appeal an injunction requiring the dismantling of an illegal concrete plant, and a finding of contempt for failure to comply with that injunction

Serving on trial and appellate teams representing a production company in connection with successfully moving its reality television show to a new television network

Successfully representing a sovereign wealth fund in opt-out litigation from a securities class action

Preserving objections to estate accounting and defeating partial motion for summary judgment in a dispute over an estate valued at more than $600 million

Defending Man Group against a securities class action that was dismissed on Man Group's motion to dismiss