Michael A. Troncoso

Of Counsel


Michael Troncoso is Of Counsel to Robbins Geller Rudman & Dowd LLP. His practice focuses on securities fraud class action litigation and other affirmative litigation.

Prior to joining the Firm, Michael served as a prosecutor, senior in-house counsel, and legal and policy advisor across numerous sectors. He served as chief counsel and chief of public policy to then-California Attorney General Kamala D. Harris, overseeing the office’s priority litigation, enforcement, and legislative matters. In this role, he served as lead counsel for the State of California in securing the National Mortgage Settlement, the largest consumer financial protection settlement in state history that brought $20 billion in loan relief and direct payments to California homeowners. He led the state’s Mortgage Fraud Task Force and its investigations of securities law violations arising from the issuance of residential mortgage-backed securities. His team recovered nearly $1 billion in RMBS-related losses for California public pension funds.

Earlier in his career, Michael served for nearly six years as a trial attorney and assistant chief attorney for policy in the San Francisco District Attorneys office, where he tried multiple criminal cases to jury verdict and led the office’s mortgage and investment fraud team, where he was responsible for investigating and prosecuting complex financial crimes from initial report through charging and trial.

Michael most recently served as Vice President at the Chan Zuckerberg Initiative, a philanthropic organization, where he led bipartisan policy and advocacy efforts nationwide. He also served in the University of California’s Office of General Counsel as managing counsel for health affairs and technology law and chief campus counsel, where he oversaw various litigation, regulatory, and data protection matters.

Michael has been honored as a “Public Policy Trailblazer” by the San Francisco La Raza Lawyers Association, a California Lawyer “Attorney of the Year,” and as one of the Daily Journals “Top 20 Attorneys Under 40” in California. He is a graduate of U.C. Berkeley and Georgetown University Law Center. He completed a judicial clerkship with the Honorable J. Spencer Letts of the United States District Court for the Central District of California in Los Angeles.

Michael is a member of Hispanic National Bar Association, the American Association for Justice, and an elected member of the American Law Institute. Michael speaks conversational Spanish.


  • Top 40 Under 40, Daily Journal, 2012

Practice Areas


  • Georgetown University Law Center, J.D., 2002
  • University of California at Berkeley, B.A., 1999


  • California
  • Georgia
  • United States Court of Appeals for the Ninth Circuit
  • United States District Courts for the Northern and Central Districts of California

Professional Affiliations

  • Hispanic National Bar Association 
  • American Association for Justice 
  • American Law Institute


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