LAWYER PROFILE
J Mark Gidley

J Mark Gidley

USA 2026

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Ranked in 2 practice areas

About

Provided by White & Case LLP

Practice Areas

To read more, visit: whitecase.com/people/j-mark-gidley

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Antitrust: Litigation Specialists - District of Columbia

Band 1
Band 1

Individual Editorial

Mark Gidley is co-chair of the firm's global antitrust practice. He handles a wide array of matters covering merger clearance, class action litigation and huge cartel investigations. He is particularly noted for his skills as a trial lawyer, regularly handling high-stakes cases in the US as well as appearing in trials and hearings overseas.

Antitrust: Cartel - USA - Nationwide

Band 1
Band 1

Individual Editorial
Mark Gidley has a notable antitrust practice acting in both civil and criminal litigation, especially for clients in the pharmaceutical space. He skillfully handles a range of cartel disputes and also provides competition advice in large corporate transactions.

Strengths

Provided by Chambers

  • Mark is an incredible lawyer who is smart and strategic.

    Antitrust: Litigation SpecialistsChambers Guide to the USA
  • Mark is a driving force. He has great experience, is very creative and aggressive.

    Antitrust: Litigation SpecialistsChambers Guide to the USA
  • Mark is incredibly responsive, very strategic and very attuned to our institutional risk profile.

    Antitrust: Litigation SpecialistsChambers Guide to the USA
  • Mark is a driving force. He has great experience, and is very creative and aggressive.

    Antitrust: CartelChambers Guide to the USA
  • Mark is incredibly responsive, very strategic and very attuned to our institutional risk profile.

    Antitrust: CartelChambers Guide to the USA
  • Mark is an incredible lawyer who is smart and strategic.

    Antitrust: CartelChambers Guide to the USA

Ranked Individuals at White & Case LLP (142)

California

California: San Francisco, Silicon Valley & Surrou

Colorado

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    Litigation: White-Collar Crime & Government Investigations

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District of Columbia

Florida

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