Chambers Review

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Antitrust - New York

5
Band 5

What the Team is Known For

The Antitrust team at Sidley Austin LLP regularly represent clients in a variety of litigation and transactional matters, often involving notable and pertinent issues such as the use of AI and algorithmic pricing. The team are also adept at providing clients with transactional advice in areas ranging from pharmaceuticals to banking and finance.

Work Highlights

  • Sidley Austin LLP represented Citigroup Inc. and affiliates in a putative class action alleging that payment cardholders are charged fees on transactions in violation of California state antitrust laws.

Strengths

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Notable Practitioners

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Juan Arteaga
3
Juan Arteaga
3
Band 3
Juan Arteaga is commended for his work across both civil and criminal agency investigations. Clients benefit from his experience as a former DOJ Antitrust Division Deputy Assistant Attorney General.

He blends a deep expertise in antitrust doctrine with a strong practical litigation perspective.

Juan has deep knowledge, experience and a practical perspective on the regulatory and enforcement landscape and he tailors advice to the nature and size of the company.

Juan is efficient and practical-minded with a good eye toward what is important for a business during litigation.

He is a substantive expert with a keen ability to see issues, predict outcomes and speak in business terms.

He has an extensive network within various industries and the Department of Justice, enabling smooth and effective communication.

Mary Marks
4
Mary Marks
4
Band 4
Mary Marks is commended for her work advising clients on the antitrust aspects of significant corporate transactions. She has particular expertise in HSR filings.

She is extremely sharp and thinks about lots of different factors.

She is a true expert, with years of experience dealing with complicated transactions and analyses.

Benjamin R. Nagin
5
Benjamin R. Nagin
5
Band 5

Benjamin R. Nagin of Sidley Austin LLP is recognized for his antitrust litigation expertise particularly in the banking and finance sector. He has notable experience advising clients on government investigations and multi-jurisdictional class actions.

His leadership, intellect and savvy is standout and he delivers practical actionable client advice.

He is excellent, has extensive experience and is a great partner and advocate.

Ranked Lawyers at
Sidley Austin LLP

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Band

New York

Antitrust

Juan Arteaga
3
Juan Arteaga
3
Band 3
Mary Marks
4
Mary Marks
4
Band 4
Benjamin R. Nagin
5
Benjamin R. Nagin
5
Band 5