Dennis F.Murphy Jr. (D.J.)


旧金山 + 1.415.875.5886

D.J. Murphy's practice focuses on complex commercial and class action litigation. He represents clients in state and federal courts and has defended a variety of clients in securities class actions, shareholder litigation, merger litigation, qui tam lawsuits including under the False Claims Act (FCA), and unfair competition and consumer fraud matters. His experience also includes representing companies in high-stakes internal investigations and government enforcement proceedings before the Securities and Exchange Commission (SEC) and Department of Justice (DOJ).

D.J.'s experience extends to all aspects of litigation, including pleading attacks, discovery and related motion practice, class certification and summary judgment motions, and trial. He has represented clients in many industries, including banking, technology, fintech, crypto, retail, and consumer products, among others.

D.J. maintains an active pro bono practice, including representing clients in asylum proceedings and veterans seeking relief before the Army Discharge Review Board.

D.J. is a member of the Leadership Development Committee of the Association of Business Trial Lawyers-Northern California chapter and a member of the Bar Association of San Francisco.


  • Former board members secure dismissal from securities class action lawsuitJones Day successfully defended two former members of the Board of Directors of a technology company, including the former Chair of the Audit Committee, in a securities class action lawsuit in the United States District Court for the Northern District of California.
  • Safelite secures complete dismissal of qui tam suitA Jones Day cross-office team achieved a complete dismissal of a California insurance fraud qui tam suit for our client Safelite, the market leader in vehicle glass repair and replacement services.
  • HDR Global Trading obtains dismissal with prejudice in 33-count lawsuitJones Day client HDR Global Trading Limited ("HDR"), the Seychelles-incorporated owner and operator of the BitMEX cryptocurrency derivatives trading platform, obtained dismissal with prejudice of a 33-count lawsuit alleging violations of the Commodity Exchange Act, RICO, and various California statutory and common law claims.