Marguerite M. Sullivan Latham & Watkins


Maggy Sullivan is a partner in the Litigation Department of Latham & Watkins and a member of the firm’s nationally recognized Antitrust & Competition Practice. She specializes in both private and government antitrust matters, and has defended corporate clients in cartel investigations, complex civil actions, multi-district actions and class actions. Ms. Sullivan focuses on criminal cartel investigations and amnesty applications before the Department of Justice’s Antitrust Division, class actions and business to business litigation in state and federal courts, and antitrust compliance counseling. She has been involved in some of the largest and most complex antitrust matters to date.

2020 Awards


Nominee, 2020 Antitrust Writing Awards: Business, Procedure

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