Sheppard, Mullin, Richter & Hampton LLP is well-positioned to represent domestic and multinational clients in antitrust investigations and prosecutions by the FTC and DOJ. The team has played a pivotal role in recent monopoly investigations involving big tech companies and in facilitating significant M&A transactions for its clients. Co-chair Leo Caserio’s litigation expertise has been instrumental in securing favorable outcomes in complex conspiracy trials. Fellow co-chair Ann O’Brien brings extensive experience in antitrust and white-collar crime investigations, including representing clients in federal criminal jury trials. Both attorneys are based in Washington DC.
Legal 500 Editorial commentary
- Profile
Key clients
- National Pipe & Plastics
- Progressive Insurance
- Essex Property Trust
- Hartford HealthCare Corporation
- Export Packers Company
- Cyient
- The Reynolds and Reynolds Company
- JRK Residential Group
- CalPortland Company
Work highlights
- Representing National Pipe & Plastics in a consolidated civil antitrust class action in the Northern District of Illinois.
- Representing Progressive Insurance in the defense of antitrust litigation.
- Representing Essex in a class action alleging that its use of software provided by Yardi violates antitrust law.
Lawyers
Practice head
Leo Caseria; Ann O'Brien
Other key lawyers
Helen Eckert; Joy Siu; Lindsey Collins; Jake Walker