LAWYER PROFILE
Jeremy Calsyn

Jeremy Calsyn

Global 2026

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Ranked in 1 practice area

About

Provided by Cleary Gottlieb Steen & Hamilton LLP

Practice Areas

Jeremy Calsyn’s practice focuses on the full range of antitrust matters. Jeremy has represented clients in their most high-profile and sophisticated matters, including mergers and acquisitions requiring regulatory approval in dozens of jurisdictions, numerous global and U.S.-focused cartel investigations, and in litigation in federal, state and administrative courts. He was co-lead trial counsel to Juul Labs in defeating the FTC’s challenge of Altria’s investment in Juul Labs. He is counsel to Pinnacle in the RealPage class action litigation, is handling numerous merger investigations, and is representing clients in several confidential cartel investigations.

Career

Joined Cleary in 1999; became partner in 2008; J.D., magna cum laude, Georgetown University Law Center (1999); B.S., summa cum laude, Southwest Missouri State University (1995); Law clerk, Judge Louis F. Oberdorfer of the U.S. District Court for the District of Columbia (2000-2001).

Professional Memberships

Member, California and District of Columbia Bars.

Chambers Review

Provided by Chambers

Chambers Global Guide

Antitrust: Cartel - USA

Band 2
Band 2

Individual Editorial
Jeremy Calsyn is accomplished in criminal antitrust litigation, particularly cases concerning price-fixing investigations. He is well known for his work on behalf of automotive parts suppliers.

Ranked Individuals at Cleary Gottlieb Steen & Hamilton LLP (176)

Africa-wide

Belgium

Brazil

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