LAWYER PROFILE
Mark Rosman

Mark Rosman

USA 2026

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Ranked in 2 practice areas

About

Provided by Proskauer Rose LLP

Practice Areas

Mark is a first-chair trial lawyer with more than 30 years of experience litigating in both the public and private sectors. Mark is a seasoned litigator, representing companies and individuals in connection with national and international antitrust and criminal matters, including cartel defense, criminal enforcement investigations, and merger and civil non-merger cases. He also has extensive experience handling Foreign Corrupt Practices Act (FCPA) violations, fraud investigations, bribery, obstruction of justice and kickbacks. Mark has served as lead lawyer in many prominent government enforcement actions as well.

Mark previously served as Assistant Chief of the Washington Criminal Section in the DOJ’s Antitrust Division, where he oversaw teams of trial attorneys and law enforcement agents who prosecuted numerous cartel cases and related violations. He also served as Special Assistant to the Directors of Enforcement in the Antitrust Division’s Office of Operations, where he assisted Directors and Deputy Assistant Attorneys General in criminal matters and merger and civil non-merger cases. Mark also worked on many cases involving amnesty, recommended indictments, plea agreements, immunity, investigations, and case development.

Mark is a prolific speaker and author on antitrust law topics, including cartel investigations and enforcement, as well as criminal and civil litigation and investigations.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Antitrust: Cartel - USA - Nationwide

Band 1
Band 1

Individual Editorial
Mark Rosman of Proskauer Rose LLP has a superb practice handling complex investigations by enforcement agencies. He often acts in cartel cases concerning the consumer and healthcare sectors.

Antitrust - District of Columbia

Band 3
Band 3

Individual Editorial

Mark Rosman of Proskauer Rose LLP is highly regarded for his work across a variety of antitrust matters, notably including cartel investigations and criminal enforcement proceedings. He defends both individuals and companies in antitrust disputes across a range of sectors including healthcare.

Strengths

Provided by Chambers

  • Mark is perfect for complex antitrust and criminal matters.

    Antitrust: CartelChambers Guide to the USA
  • Mark is a hard-working and good strategist.

    Antitrust: CartelChambers Guide to the USA
  • Mark is perfect for complex antitrust and criminal matters.

    AntitrustChambers Guide to the USA
  • Mark is a hard-working and good strategist.

    AntitrustChambers Guide to the USA

Ranked Individuals at Proskauer Rose LLP (133)

California

California: Los Angeles & Surrounds

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    Colleen Hart

    Employee Benefits & Executive Compensation

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California: Southern

District of Columbia

Florida

Illinois

Louisiana

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