Mark H. Hamer is working as a partner at Baker McKenzie Washington office and he is the Chair of the Firm’s North America Antitrust & Competition Practice Group. Mark has over 25 years of wide-ranging litigation experience, including first-chair roles in jury trials, bench trials and arbitration proceedings. His primary focus is antitrust litigation. Before joining Baker McKenzie, Mark was a successful federal prosecutor in the Antitrust Division of the US Department of Justice. He was involved in some of the DOJ’s highest-profile antitrust trials. Before joining the DOJ, Mark was a partner at another global law firm where he handled complex multidistrict antitrust class actions in courts across the nation. Mark’s practice focuses on antitrust litigation, both private and public. He assists clients in the defense of merger challenges, class actions, and civil and criminal investigations. He helps clients navigate federal and state regulatory inquiries, enforcement actions, complex merger clearance matters and multidistrict antitrust class actions. As an experienced antitrust counsel, Mark also regularly provides antitrust advice on a broad range of non-litigation matters, including antitrust deal support, merger clearance strategy, sales and distribution advice, and antitrust compliance. Mark is seasoned in a diverse array of industries, including payments, financial services, energy, rail and truck systems, computer hardware and software, consumer products, movie theaters, satellite broadcasting and insurance.

2021 Awards


Winner, 2021 Antitrust Writing Awards: Business, Private Enforcement

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