LAWYER PROFILE

Cleary Gottlieb Steen & Hamilton LLP

Mark Leddy

Washington, DC, USA USA Guide 2021 Ranked in 2 departments
Ranked in : Antitrust , Antitrust: Cartel
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Lawyer profile for USA 2021

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USA 2021
USA

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Global 2021

Chambers Review

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USA
Antitrust - District of Columbia

Senior Statespeople

Content
Mark Leddy is a highly regarded practitioner commended for his skills in sophisticated clearance proceedings for clients spanning an array of industry sectors. He is also particularly commended for his expertise in global cartel investigations and follow-on litigation.
"A very careful and focused lawyer."
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Antitrust - USA - Nationwide

Senior Statespeople

Content
Mark Leddy is commended for his representation of a broad array of prominent clients in competition disputes. His previous DOJ experience bolsters his ability to handle governmental merger reviews.
"A very careful and focused lawyer."
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Antitrust: Cartel - USA - Nationwide

Senior Statespeople

Content
Mark Leddy is commended for his representation of a broad array of prominent clients in competition disputes. His previous DOJ experience bolsters his ability to handle governmental merger reviews.
"A very careful and focused lawyer."
Learn more about this team View ranking table

Lawyer information

This content is provided by Mark Leddy

Practice Areas

Mark Leddy’s practice focuses on U.S. and European antitrust law, the analysis of competitive issues in mergers and acquisitions, and appearances before antitrust regulatory agencies and the U.S. federal courts in civil and criminal litigation.

Mark has played a critical role in many industry-transforming transactions and is recognized as a leading antitrust litigator.

Career

Joined firm as partner, 1986. Resident in firm’s Brussels office (1991-94). US Department of Justice (1972-86); Deputy Assistant Attorney General (1984-86). J.D., Boston College Law School (1971); B.A., Boston College (1968).

Professional Memberships

Massachusetts and DC Bars; U.S. Supreme Court and various circuit courts of appeal.

USA

This individual is also ranked in:

Global 2021
Mark Leddy

Cleary Gottlieb Steen & Hamilton LLP

yellow-guide 19 YEARS RANKED
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2000 Pennsylvania Avenue, NW

Washington, DC

District of Columbia

USA

20006

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