Department profile
A&O Shearman

Securities: Litigation

USA Guide 2026 : USA - Nationwide

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A&O Shearman

Chambers Review

Provided by Chambers

Securities: Litigation - USA - Nationwide

Band 2

What the Team is Known For
A&O Shearman is a destination firm for financial institutions involved in securities litigation as underwriters, as well as corporate issuer clients. It often advises on matters involving multiple jurisdictions for domestic and international companies, with significant activity for Asian clients entering US markets. Its noted recent activity includes lawsuits in connection with benchmarking matters relating to the financial services industry.
Notable practitioners

New York-based Adam Hakki is a key contact at the firm.

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Work Highlights

Provided by Chambers

  • A&O Shearman won a significant and complete appellate victory for Paramount Global (formerly named ViacomCBS) in a securities class action litigation arising from the collapse of Archegos Capital Management.

Strengths

Provided by Chambers

  • I really appreciate how fast and efficient A&O Shearman is. The team is very thorough and doesn't ever miss anything. It has a very deep bench, and its attorneys are consistently super responsive; I'm never waiting on them. The firm is 100% able to put its counsel into a business context and understands the implications of how everything will play out.

    Securities: Litigation respondentUSA

  • A&O Shearman does a fantastic job. The firm always gets good results; it's good at negotiations and manages client expectations.

    Securities: Litigation respondentUSA

  • A&O Shearman delivers incredible responsiveness, valuable input and the ability to understand and break complex concepts down into an easily digestible form. They provide a lot of comfort when it comes to their experience, industry connections and ability to pick up on news faster than anyone else.

    Securities: Litigation respondentUSA

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