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Jason represents clients in complex individual and class action disputes across the country.

He focuses heavily on business torts and other commercial issues, including antitrust, consumer fraud, securities fraud, and the Employment Retirement Income Security Act (ERISA).

Jason regularly counsels clients on compliance matters related to antitrust, trade regulation, and unfair competition. In addition, Jason devotes a substantial part of his practice to matters involving financial institutions, intellectual property disputes, and appellate litigation on behalf of a broad range of clients.

Jason serves on the firm’s Recruiting Committee in St. Louis and on the firm-wide Diversity, Equity & Inclusion Council.

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  • J.D., New York University School of Law
      • OUTLaw, Chair
      • Teaching Assistant, Legal Research & Writing
      • NYU Review of Law & Social Change, Articles Selection Editor
  • A.B., Stanford University
    • with honors
    • Psychology
      • Violinist, Stanford University Chamber Orchestra
      • Stanford Program in Oxford


  • U.S. District Court, Eastern District of Missouri
  • Missouri
  • U.S. District Court, Eastern District of New York
  • New York
  • U.S. District Court, Southern District of New York

Professional Associations and Memberships

  • American Bar Association
  • American Health Lawyers Association
  • Bar Association of Metropolitan St. Louis
  • National LGBT Bar Association


  • The Honorable Jean C. Hamilton, U.S. District Court, Eastern District of Missouri

Appellate Litigation

  • Prevailed on appeal in an antitrust-connected subpoena enforcement action involving separate proceedings against competing pharmacy benefit managers. The Ninth Circuit Court of Appeals held, on a matter of first impression, that the Federal Arbitration Act (FAA) does not grant arbitrators the power to compel production of documents from nonparties outside of a hearing before the arbitrators.
  • Obtained appellate judgment in lawsuit under Alien Tort Statute (ATS), on behalf of Nigerian children and their guardians, against multinational drug company, holding that allegations that experimental antibiotic testing without consent or knowledge stated ATS claim, because such testing violated a universally accepted norm of customary international law.
  • Secured judgment on appeal in favor of developer and operator of publicly funded transportation project on grounds that plaintiff unreasonably delayed in bringing lawsuit.

Class Action Litigation

  • Achieved dismissal of 15-year-old putative class action against multiple pharmacy benefit managers on argument that plaintiffs destroyed evidence relevant to their substantive claims.
  • Won summary judgment for healthcare client in putative class action brought under the Telephone Consumer Protection Act (TCPA) regarding informational employee benefit faxes. Successfully defended judgment on appeal before the Sixth Circuit Court of Appeals.
  • Represented former board member of leading insurance company in companion shareholder derivative and securities fraud class action lawsuits, alleging that company misstated its financial performance in order to mislead investors about its financial condition.

Financial Litigation

  • Defended software company executive in Securities and Exchange Commission (SEC) enforcement action, alleging accounting irregularities and improper revenue recognition practices by company and certain of its executives.
  • Litigated dispute between client, an India-based global technology services firm, and it's former U.S.-based joint venture partner before the London Court of International Arbitration, and in action in federal district court recognizing and enforcing arbitration award in favor of client.

Healthcare Litigation

  • Won complete defense verdict for healthcare client in contract dispute, where plaintiff sought more than $20 million in damages for alleged wrongful termination of parties’ agreement.
  • Secured early dismissal of complex antitrust action brought by healthcare provider against pharmacy benefit manager client.
  • Defeated pharmacy’s request for injunction seeking to stop client, a pharmacy benefit manager, from terminating pharmacy from client’s provider network for multiple contractual violations.

Intellectual Property Litigation

  • Defeated motion for preliminary injunction sought by plaintiff building products distributor against its competitor and certain of plaintiff’s former executives who had joined competitor. Plaintiff failed to demonstrate a likelihood of success on the merits of its trade secret misappropriation and breach of employment agreement claims.
  • Successfully defended leading manufacturer and marketer of sporting goods in license agreement dispute with a developer of baseball gear technology.

Pro Bono

  • Prosecute appeals on behalf of indigent criminal defendants through the Missouri Coalition for the Right to Counsel, a non-profit seeking to ease the caseload of the state’s public defender system.
  • Represented gay Colombian asylum seeker in removal proceedings before the U.S. Immigration Court in Manhattan, New York, resulting in a settlement with the government that allowed client to live and work in the United States.

Community Leadership
  • Bar Association of Metropolitan St. Louis (BAMSL), Board of Governors (Member-at-Large)
  • Missouri Coalition for the Right to Counsel