John M. Murphy

Baker & McKenzie LLP


John Murphy represents US-based and non US-based clients in connection with domestic and international business disputes. John appears regularly in federal and state trial and appellate courts throughout the United States, as well as in domestic and international arbitrations. He also manages cross-border litigation involving investigations and simultaneous legal proceedings in multiple jurisdictions.

Practice Focus

John's practice is focused on complex business litigation, primarily in the areas of unfair competition, business divorce, partnership and joint venture disputes, shareholder claims, fiduciary wrongdoing, post acquisition disputes, trade secret theft, employee raiding, distributor disputes, real estate and leasing disputes, intellectual property infringement, fraud and related business torts. He has broad experience conducting internal investigations and in litigation involving requests for equitable remedies such as injunctive relief.

Representative Legal Matters

  • Obtained judgment after a trial totaling USD 3.5 million on behalf of a publicly-traded global consumer products company on claims against a former senior executive and his new employer for breach of fiduciary duties, and aiding and abetting breach of fiduciary duties. Affirmed on appeal.
  • Obtained judgment entered after trial in Delaware Court of Chancery in favor of five public pension funds, declaring valid the removal of general partner of USD 70 million real estate limited partnership. Affirmed on appeal.
  • Obtained an order on appeal reversing an USD 11 million-jury verdict and entering judgment in favor of founders of electronic stock exchange Archipelago on fraud claim brought by former business associate.
  • Obtained the dismissal of shareholder derivative claims against a global pharmaceutical company and defeated a motion to enjoin acquisition.
  • Obtained a permanent injunction on behalf of a publicly-traded global insurance brokerage firm, blocking several former executives unfairly competing.
  • Obtained a temporary restraining order and preliminary injunction on behalf of a publicly-traded aerospace and defense firm, enjoining the sale, transfer or encumbrance of stolen aircraft engine.
  • Obtained an order freezing attorneys’ fees that were the subject of a dispute among current and former law firm principals.
  • Obtained dismissal of claims against a limited liability company for aiding and abetting breach of fiduciary duties and corporate usurpation.
  • Obtained summary judgment in favor of a food company against former executives for breaching their fiduciary duties by forming a rival business. Affirmed on appeal.
  • Obtained preliminary injunction in favor of a software corporation on claims for violation of the Digital Millennium Copyright Act, the Computer Fraud and Abuse Act, and the Illinois Trade Secrets Act.

Professional Associations and Memberships

  • American Bar Association - Member
  • Seventh Circuit Bar Association - Member
  • Chicago Bar Association - Member


  • U.S. Court of Appeals, Second Circuit~United States
  • U.S. Court of Appeals, Sixth Circuit~United States
  • U.S. Court of Appeals, Seventh Circuit~United States
  • U.S. District Court, Northern District of Illinois~United States
  • Illinois Supreme Court~United States


  • University of Illinois College of Law (JD)
  • University of Notre Dame (BA, Honors)


  • English


Presenter, "Dow Jones Risk and Compliance Seminar," Global Compliance and Corporate Defense, Tokyo, Japan, February 2016


Author, "Managing the Risk of Inevitable Trade Secret Disclosure," Corporate Counsel's Quarterly, 2010