Department profile
O'Melveny & Myers LLP

Litigation: Securities

USA Guide 2026 : New York

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O'Melveny & Myers LLP

Rankings

Chambers Review

Provided by Chambers

Litigation: Securities - New York

Band 3

What the Team is Known For

O'Melveny & Myers operates a highly active commercial litigation practice, which draws on additional expertise in regulatory investigations. The firm has broad civil disputes capabilities which include handling cases involving alleged false advertising and antitrust claims. It offers expert representation of a strong roster of financial institutions and underwriting syndicates in securities class actions and derivative suits, with significant experience in M&A litigation. It fields a strong group of trial lawyers who frequently appear in federal and state courts across the USA. Its broad commercial client base includes companies from the real estate, financial services and healthcare sectors.

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Work Highlights

Provided by Chambers

  • O'Melveny & Myers represented Evolus in winning a dismissal of a putative securities class action alleging that the company and several officers and directors made false or misleading statements.

Strengths

Provided by Chambers

  • O'Melveny & Myers has an extraordinary litigation team. The quality at all levels of the team is consistently high-quality. The firm is client-focused, good at problem-solving and doesn't overcomplicate the issues. It is an excellent and responsive group.

    Litigation: Securities respondentUSA

  • O'Melveny & Myers' litigation department stands out for its strategic insight, deep industry knowledge and exceptional client focus. Its ability to navigate complex, high-stakes cases sets it apart. The firm's bench exhibits exceptional depth and breadth, with a robust roster of skilled litigators who consistently provide timely, clear and actionable communication throughout their engagement.

    Litigation: Securities respondentUSA

  • O'Melveny & Myers provides strong strategic insights, a deep understanding of our business and objectives and a plan to achieve them.

    Litigation: Securities respondentUSA

  • O'Melveny & Myers is extremely responsive and functions as partners rather than just outside counsel. It understands our company, the industry and is well connected. Its attorneys do everything well and are a good resource for us to bounce ideas off. They are very bright and practical.

    Litigation: Securities respondentUSA

Notable Practitioners

Provided by Chambers

  • Jonathan Rosenberg
    Jonathan Rosenberg

    Jonathan Rosenberg

    Jonathan Rosenberg is well versed in securities class actions, derivative suits and regulatory matters, and also regularly acts for underwriting syndicates in IPO litigation.

    • Jonathan is one of the most talented legal thinkers and legal writers I have met. I am consistently amazed by his work product and the way he delivers effective advocacy.

      Litigation: Securities respondentUSA

    • Jonathan is a trusted lawyer and a great leader. He has exhaustive knowledge of federal and state court systems.

      Litigation: Securities respondentUSA

    • Jonathan has years of experience, knows the space intimately and digs into the details to provide top-notch advocacy and insight.

      Litigation: Securities respondentUSA

    • Jonathan is an industry leader. When it comes to the nuances of defending securities class action matters, he is excellent.

      Litigation: Securities respondentUSA
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  • Abby Rudzin
    Abby Rudzin

    Abby Rudzin

    Abby Rudzin is an experienced litigator with particular strength defending securities actions. She has further experience representing underwriting syndicates as well as capabilities in broader commercial litigation.

    • Abby is extremely intelligent and has great experience as a trial lawyer. She has great poise and is a great advocate. She also demonstrates great wisdom and discernment about when to push hard and pull back on issues.

      Litigation: Securities respondentUSA

    • Abby has deep experience and provides excellent legal advice.

      Litigation: Securities respondentUSA

    • Abby is a very trusted partner. She does a very good job of representing us.

      Litigation: Securities respondentUSA
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  • Andrew Frackman
    Andrew Frackman

    Andrew Frackman

    Andrew Frackman takes on a range of civil litigation and trial work. He covers the gamut of commercial disputes, including contract cases and antitrust suits.

    • Andrew is a talented and experienced trial lawyer. He thinks about particular client needs and how to lead the broader group to the best solution.

      Litigation: Securities respondentUSA

    • Andrew Frackman is a pleasure to work with.

      Litigation: Securities respondentUSA

    • Andrew is a very solid attorney.

      Litigation: Securities respondentUSA
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  • Hannah Chanoine
    Hannah Chanoine

    Hannah Chanoine

    Hannah Chanoine cochairs the consumer class actions practice at O'Melveny & Myers. She has substantial expertise representing a broad base of product manufacturers in complex litigation alleging false or misleading claims.

    • Hannah has exceptional strategic thinking, deep expertise in consumer class actions and a client-focused approach.

      Litigation: Securities respondentUSA

    • Hannah is an incredibly gifted attorney who has a deep understanding of the law and how to get the best outcome for her client.

      Litigation: Securities respondentUSA

    • Hannah is excellent. Her work product is always top-notch, as is the thinking behind it.

      Litigation: Securities respondentUSA

    • Hannah is extremely smart, savvy and a strategic thinker.

      Litigation: Securities respondentUSA

    • Hannah is really abreast of legal trends and the law. It seems like she always has the answers.

      Litigation: Securities respondentUSA
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Ranked Individuals at O'Melveny & Myers LLP (4)

New York

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