Kevin Muck defends issuers, officers and directors in securities class actions, derivative litigation, merger litigation and shareholder disputes in federal and state courts throughout the United States, with extensive experience in the Delaware Court of Chancery. For nearly 35 years, he has represented clients in a wide range of industries, including life sciences, software, data storage and security, financial services, telecommunications, transportation, entertainment, gaming, and consumer retail. His clients have ranged from Fortune 100 corporations to high-profile private companies.

Mr. Muck also advises clients on corporate governance, disclosure issues and fiduciary duties, and handles internal and board investigations regarding such matters as accounting issues, executive compensation, whistleblower complaints and insider training. In addition, he represents companies and individuals in matters before the US Securities and Exchange Commission. 

Mr. Muck joined WilmerHale in 2020 after more than 15 years at another Bay Area law firm, where he co-founded the securities litigation practice and represented many leading technology and life science companies. 

Professional Activities

A frequent lecturer, Mr. Muck often speaks on issues involving securities matters, fiduciary duties and class action litigation. He is also active in pro bono matters.


  • Recognized by The Daily Journal in its list of Top 100 Lawyers in California (2022).
  • Ranked by Chambers USA as a leading securities litigator in California and described in the 2022 edition as “an excellent litigator who operates with the highest integrity, establishing trust with his clients and peers in the industry."
  • Repeatedly recognized by Legal 500, with commenters describing him as “an outstanding litigator who can handle any matter and is terrific in court” 
  • Selected by peers for inclusion in Best Lawyers in America for securities litigation (2018–2024) and regulatory enforcement (SEC, Telecom, Energy) litigation (2023–2024).
  • Regularly recognized as a Northern California Super Lawyer in securities litigation, corporate governance and compliance.

Insights & News


  • Education

    • JD, University of California, Berkeley School of Law, 1985

    • BS, Santa Clara, 1982

      summa cum laude

      Phi Beta Kappa

  • Admissions

    • California

    • US Supreme Court

    • US Court of Appeals for the Ninth Circuit

    • US District Court for the Central District of California

    • US District Court for the Eastern District of California

    • US District Court for the Northern District of California

    • US District Court for the Southern District of California

    • United States Tax Court



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