Department profile
Sidley Austin LLP

Antitrust: Litigation Specialists

USA Guide 2026 : District of Columbia

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Sidley Austin LLP

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About

Provided by Sidley Austin LLP

For more information on the practice, please visit the practice's page at: https://www.sidley.com/en/us/services/antitrustcompetition/

Chambers Review

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Antitrust: Litigation Specialists - District of Columbia

What the Team is Known For
Sidley Austin LLP has an accomplished team recognized for handling a variety of antitrust issues, with particular ability in merger review. Highlighted for its attorneys' previous experience in enforcement agencies, it also offers notable capability in government investigations. Strong client relationships within the financial services, technology and medical device sectors.
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Work Highlights

Provided by Chambers

  • Sidley Austin LLP advised Norfolk Southern on the antitrust aspects of its proposed $85 billion merger with Union Pacific.

Strengths

Provided by Chambers

  • Sidley's antitrust team are true experts. They provide timely, clear advice while understanding the needs and priorities of the business. The team takes their antitrust expertise and applies it to the unique rules that apply to our industry, demonstrating adaptability and ability to pivot.

    Antitrust: Litigation Specialists respondentUSA

  • The Sidley Austin team are very strategic and develop outside-the-box arguments. They have a strong talent base and are very relationship-focused.

    Antitrust: Litigation Specialists respondentUSA

  • We appreciated the attention to detail and quickness with which counsel were able to grasp the subject matter. They were proactive, effective and very strategic navigating the matter.

    Antitrust: Litigation Specialists respondentUSA

  • Sidley has industry expertise, practical advice and regulatory insight. The antitrust practice is able to identify the critical issues on which agencies will focus.

    Antitrust: Litigation Specialists respondentUSA

  • The Sidley attorneys demonstrate fantastic technical skills, deep client knowledge and top-notch service. They are pragmatic and always incredibly responsive.

    Antitrust: Litigation Specialists respondentUSA

Notable Practitioners

Provided by Chambers

  • Timothy J Muris
    Timothy J Muris

    Timothy J Muris

    Timothy Muris has a broad antitrust practice spanning merger review, government investigations and business antitrust advice. He has particular expertise in the technology space.
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  • Carrie Mahan
    Carrie Mahan

    Carrie Mahan

    Carrie Mahan is commended for her focus on antitrust litigation. She is particularly noted for her skills in class action defense.

    • Carrie is fantastic. She is an excellent litigator.

      Antitrust: Litigation Specialists respondentUSA

    • Carrie is a stand-out antitrust attorney with a sharp legal mind, who excels at tying her deep legal knowledge to the needs and expectations of the business. She quickly grasp the nuances of a complex industry and applies that knowledge.

      Antitrust: Litigation Specialists respondentUSA
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  • Corey Roush
    Corey Roush

    Corey Roush

    Corey Roush has a broad antitrust practice encompassing transactional and disputes work. He is particularly noted for his work in merger clearance, including handling litigated merger challenges before the FTC and DOJ. He's also noted for managing antitrust class actions.

    • Corey has a practical, strategic focus.

      Antitrust: Litigation Specialists respondentUSA

    • Corey is a great lawyer. He is excellent with clients and has a tremendous amount of experience.

      Antitrust: Litigation Specialists respondentUSA

    • Corey is incredibly effective and highly intelligent.

      Antitrust: Litigation Specialists respondentUSA

    • Corey cuts to the core of an issue, understands what outcomes are commercially impactful and covers a wide range of issues and sectors.

      Antitrust: Litigation Specialists respondentUSA
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  • James W Lowe
    James W Lowe

    James W Lowe

    James Lowe is highly regarded for his work representing clients in government investigations, pertaining to both mergers and criminal conduct and any ensuing appellate litigation. He is able to advise clients on a variety of transactional antitrust concerns.

    • Jim has a lot of experience in getting deals through.

      Antitrust: Litigation Specialists respondentUSA

    • Jim is an excellent lawyer who uses his industry knowledge to anticipate issues and proactively handle them.

      Antitrust: Litigation Specialists respondentUSA

    • James is an excellent lawyer and excellent business partner.

      Antitrust: Litigation Specialists respondentUSA
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Ranked Individuals at Sidley Austin LLP (4)

District of Columbia

Members

Provided by Sidley Austin LLP

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