Karen Kazmerzak

Practice Areas

A former Federal Trade Commission (FTC) lawyer, Karen Kazmerzak advises clients on a wide range of antitrust and competition issues, particularly in seeking clearance for high-profile, complex mergers and acquisitions before the Department of Justice and FTC, and in developing strategies to advocate for merger approval in international jurisdictions. Recognized as a leader in the field by Chambers USA, she is lauded by clients for taking a “practical, commercial approach to antitrust issues.” Karen is also recognized for her work representing third-party market participants in connection with opposition to acquisitions and in connection with government subpoenas.

Karen’s extensive private sector and government experience has spanned numerous industries, including the life sciences, energy, transportation, healthcare and telecom sectors, among many others. She also counsels clients on antitrust matters involving licensing, distribution, pricing and competitor collaborations.

Professional Memberships

Karen is an active member of the American Bar Association Section of Antitrust. She served as a vice chair of the Transportation and Energy Industries Committee (2012–2018) and currently serves as an associate editor of ANTITRUST. Karen is also a co-founder of the Women’s Antitrust Forum, an organization based in Washington, D.C.