Department profile
Constantine Cannon LLP

Antitrust: Mainly Plaintiff

USA Guide 2026 : New York


Constantine Cannon LLP

Rankings

About

Provided by Constantine Cannon LLP

For over 30 years, Constantine Cannon has been a preeminent antitrust firm focused on litigating “change-the-industry” cases. We have achieved record-setting results for our clients and have reformed industries to promote competition and benefit the public, including three of the largest known private antitrust settlements in U.S. history. We also have substantial experience defending against antitrust claims.

We recently represented and settled the claims of more than 60 merchants and trade associations seeking reform of Visa’s and Mastercard’s anti-competitive rules and seeking substantial damages from supra-competitive prices (so-called “interchange fees”) imposed on merchants. Our clients included some of the largest corporations in the world, including Amazon, Booking Holdings, Costco, Dick’s Sporting Goods, IKEA, NIKE, Ralph Lauren Corp., Starbucks, The Gap, and Yum! Brands.

The firm also recently settled a landmark antitrust class action where it represented millions of businesses and individuals alleging that Sutter Health, one of the largest health systems in California, illegally tied together different hospitals’ services and imposed unreasonable trade restraints to charge health plans higher prices, which led to higher health-insurance premiums. In the healthcare sector, we also represent CVS in its multi-billion-dollar antitrust claims in In re Generic Pharmaceuticals Antitrust Litigation.

Industries (6)

  • Biotech & Pharmaceuticals
  • Digital Platforms & E-Commerce
  • Electronic Payments
  • FinTech & Financial Services
  • Healthcare
  • Government Procurement

Chambers Review

Provided by Chambers

Antitrust: Mainly Plaintiff - New York

Band 3

Band 3


What the Team is Known For
Constantine Cannon LLP's antitrust team is highlighted for its considerable plaintiff work. The group represents clients before federal and state antitrust enforcement agencies. The team demonstrates strength in advising clients on a range of issues, including antitrust compliance programs, licensing agreements and merger analysis.

Work Highlights

Provided by Chambers

  • Constantine Cannon LLP represents CVS in connection with its multi-billion dollar claim in the Generic Pharmaceuticals Antitrust Litigation.

Strengths

Provided by Chambers

  • Constantine Cannon are tenacious in their representation.

    Antitrust: Mainly Plaintiff respondentUSA
  • Constantine Cannon are truly fierce advocates and very good subject matter experts.

    Antitrust: Mainly Plaintiff respondentUSA

Notable Practitioners

Provided by Chambers

  • Band 3Ankur Kapoor
    Band 3Ankur Kapoor

    Ankur Kapoor

    Ankur Kapoor has notable experience in antitrust cases. He often handles plaintiff-side representation in class action litigation.
    • He has a very level head and is passionate about antitrust.

      Antitrust: Mainly Plaintiff respondentUSA
    • Ankur in particular is an exceptional attorney, he is poised, calm and extremely well organized and personable.

      Antitrust: Mainly Plaintiff respondentUSA

Ranked Individuals at Constantine Cannon LLP (1)

New York

Members

Provided by Constantine Cannon LLP

  • Taline Sahakian

    Head of Department

  • Owen Glist

  • Jean Kim

  • Alysia Solow

  • Seth D. Greenstein

  • Lloyd Constantine

  • W. Stephen Cannon

  • Richard Aborn

  • Gary J. Malone

  • Robert L. Begleiter

  • Jan Friedman Constantine

  • Dan Vitelli

  • Allison Sheedy

  • Ankur Kapoor

  • Ankur Kapoor

    Head of Department

    View profile of Ankur Kapoor

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