Erin J. Cox

Erin J. Cox

Erin Cox is a partner in the Los Angeles office of Munger, Tolles & Olson.

Her practice focuses on complex civil litigation, with particular emphasis on finance-related litigation.

Outside of the firm, Ms. Cox serves on the Board of Directors for the Fulfillment Fund and is the President of the Fulfillment Fund’s Leadership Council.

Prior to joining the firm, Ms. Cox served as a law clerk for Judge George H. King of the U.S. District Court for the Central District of California. She received her J.D. from UCLA School of Law, where she was elected to Order of the Coif and served as Senior Editor for the UCLA Law Review. During law school, Ms. Cox argued before the Ninth Circuit Court of Appeals in representing a habeas petitioner bringing due process and ineffective assistance claims under AEDPA. She received her bachelor’s degree in cognitive science and social welfare from UC Berkeley in 2005, where she was a Regents’ Scholar and elected to Phi Beta Kappa. 


  • An Economic Crisis Is a Terrible Thing to Waste: Reforming the Business of Law for a Sustainable and Competitive Future, 57 UCLA L. REV. 511 (2009).
  • Freeing Exercise at Expression’s Expense: When RFRA Privileges the Religiously Motivated Speaker, 56 UCLA L. REV. 169 (2008).


Examples of matters handled by Ms. Cox include representing:

  • Wells Fargo Bank in:
    • federal court in a suit alleging mismanagement of billions of dollars of investments in its securities lending program. After a seven-week trial, the jury returned a unanimous verdict for Wells Fargo on all claims and awarded zero damages.
    • class actions and individual actions in federal and state court relating to allegedly improper sales practices.
    • a securities class action concerning over 50 RMBS offerings.
  • Bank of America in:
    • securities litigation in federal and state courts arising from the issuance of mortgage-backed securities.
    • a variety of breach of contract matters relating to its mortgage-origination business.
  • NBCUniversal and KNBC Los Angeles in a one-month jury trial in Los Angeles Superior Court in a case brought by an award-winning investigative producer alleging age discrimination. After four days of deliberations, the court declared a mistrial after the jury announced that it was deadlocked.
  • Disney in defending against claims of copyright infringement related to the motion picture “Frozen.”
  • An independent television channel in a dispute with a large media company.
  • Burrill Life Sciences Capital Fund III, L.P., as a plaintiff, in a fraud case against the Fund’s former general partner and former auditor (a Big Four accounting firm) arising from a years-long multi-million dollar embezzlement scheme. After a year of litigation, the Fund settled with the former general partner for a significant portion of its damages, and then settled with the former auditor on a confidential basis.
  • An investment company in obtaining dismissal of a WARN Act class action in Delaware bankruptcy court that sought to hold it liable for termination notice violations of a bankrupt company in which it invested.
  • A major packaged goods company in obtaining a stipulated injunction and achieving a favorable settlement in trade secret litigation brought against a competitor and former employee for the theft of information.
  • A national retailer in securing dismissal of claims asserting that online postings and advertising violated the Americans with Disabilities Act.