A. Marisa Chun is an experienced trial and appellate lawyer and leads the Firm’s Litigation Practice Group in its San Francisco and Silicon Valley offices. She represents clients in diverse matters involving commercial litigation, class actions, and internal and government investigations involving False Claims Act, health care fraud, antitrust, and other regulatory matters – focusing on thoughtful advocacy and strategies to secure an early and favorable resolution or victory if the case must be tried. As a former television reporter, prosecutor, and senior official at the US Department of Justice, Marisa draws upon her legal, government, and media experience when advising clients and boards of directors facing high-stakes matters in today’s highly regulated environment. Bilingual in Korean, Marisa has significant experience advising companies and executives in the Korean technology, life sciences, and energy industries.

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  • Representing international robotics company in high-stakes, commercial dispute involving automotive and automation technology
  • Representing wealth management company and executive in high-stakes employee mobility case
  • Representing environmental and radiological services provider, officers, and directors in environmental enforcement action brought by California Attorney General’s Office.
  • Represented a Software-as-a-Service (SaaS) company in a bet-the-company arbitration involving misappropriation of the client’s intellectual property and the systematic poaching of its customers, which resulted in a significant settlement
  • Trial counsel for a technology company in a three-week trade secret misappropriation, breach of contract, patent inventorship, and trademark case in which the jury returned a complete defense verdict on all eight trade secret claims, contract claims, and patent claim, and awarded nominal damages of $1 each on the trademark claims

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  • The Legal 500 United States, 2018 (Corporate Investigations and White-Collar Criminal Defense)
  • Benchmark Litigation, “Local Litigation Star,” 2017, 2018, “California Star,” 2019 (Commercial, White Collar, Appellate, and Antitrust)
  • Selected as a “Northern California Super Lawyer,” 2005 to 2009, 2016 to 2018

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  • Public Policy Institute of California, Board of Directors, Member
  • Bar Association of San Francisco, Justice and Diversity Center, Board of Directors, Member
  • Stanford Law School, Guest Instructor, Trial Advocacy Program

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Harvard Law School, JD, cum laude
Yale University, BA, summa cum laude

District of Columbia

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