Antitrust Litigation


Combining courtroom savvy with substantive knowledge of antitrust law, Ropes & Gray’s experienced antitrust litigators successfully defend and assert our clients’ antitrust cases before state and federal courts.


“They really bring a good commercial sense which is a hard trait to come by. They can look at a problem and come back with a creative solution. They not only look at it from a legal perspective, but also give us something which fits the business perspective.” Antitrust Client, Chambers USA
“The team assists clients with a range of antitrust work, including transactional, counseling, and litigation.” Chambers USA
“This team draws considerable acclaim from commentators for its expertise in handling merger clearance, cartel investigations and price-fixing cases.” Chambers USA


Led by our skilled trial lawyers, our antitrust litigation group combines the trial skills, practical experience, and exhaustive antitrust acumen required to prevail in any type of antitrust dispute.

Clients across industries rely on us to litigate the full range of antitrust matters. We handle state and federal antitrust litigation, class actions, arbitrations, appeals, and complex multi-district litigation. Working seamlessly with our award-winning IP litigators, we often represent clients in patent/antitrust disputes. When the goal is prompt termination of litigation, we devise creative solutions that meet our clients’ needs.

We regularly litigate a wide variety of antitrust matters, both for plaintiffs and defendants, including, among others, claims involving:

  • Group boycotts 
  • Price fixing conspiracies 
  • Franchisor/franchisees disputes 
  • Monopolization 
  • Exclusive dealing and tying 
  • Unfair competition 
  • Intellectual property/antitrust disputes 
  • Interlocking directorates 
  • Joint ventures and merger transactions

We litigate matters arising both in private disputes and from government investigations and often represent clients in state and federal antitrust investigations. Clients rely on us to coordinate multi-jurisdictional antitrust disputes that can involve litigation and investigations in numerous forums in the U.S. and worldwide. 


Ropes & Gray has a proven track record of successfully representing clients in antitrust cases, including:

  • Illinois Tool Works in a suit involving federal and state law antitrust conspiracy claims 
  • Cablevision against unlawful tying and monopolization claims in connection with cable set-top boxes 
  • Hitachi-LG Data Storage, in multi-district litigation alleging direct and indirect purchaser price fixing of optical disk drive products 
  • Atlas Air Worldwide Holdings and Polar Air Cargo LLC, winning dismissal of claims in a multi-district antitrust litigation alleging market manipulation and claiming that our clients’ international pricing practices violated U.S., state, and European Union antitrust laws 
  • HCA, winning summary judgment disposing of monopolization and related claims brought by a physician challenging client’s privileges rules 
  • TravelCenters of America in an action alleging a horizontal and vertical group boycott in connection with the provision of fuel card services to trucking companies
  • IASIS Healthcare Corporation in multi-defendant class action litigation alleging a conspiracy to set prices paid for temporary nursing services
  • Daewoo International Corporation, winning dismissal of a price fixing case alleging an international conspiracy to fix price charges for CRTs and CRT products 
  • Nortel Networks, winning dismissal of an unlawful tying and exclusive dealing suit brought by a competitor 
  • Lloyd’s of London in multiple antitrust class actions alleging that contingent commission arrangements among insurers and brokers unlawfully allocated customers 
  • Bain Capital in an antitrust class action alleging unlawful conspiracy among private equity firms in bidding for targets
Cookie Settings