Jason Moreau is a partner in Armstrong Teasdale’s Litigation practice group. His practice focuses on complex commercial litigation, with an emphasis on financial services, securities litigation and regulatory enforcement.

An established practitioner, Jason has extensive experience representing companies, officers, directors, boards and individuals in government investigations, enforcement proceedings and complex commercial litigation. Jason regularly represents clients in federal and state court proceedings as well as matters initiated by various state and federal regulators including the Securities and Exchange Commission (SEC), Department of Justice (DOJ), Commodity Futures Trading Commission (CFTC), Financial Industry Regulatory Authority (FINRA) and other state securities regulators. These matters often involve allegations of fraud, corporate misconduct, accounting improprieties, market manipulation, insider trading, and violations of the Foreign Corrupt Practices Act (FCPA) and False Claims Act (FCA). Jason’s experience spans a variety of industries, including financial services and banking, health care and pharmaceuticals, energy, minerals and mining, firearms, restaurant/point of sale (POS) software and services, and higher education. 

Jason is routinely engaged by public and private companies (global and domestic), and by audit and special committees of boards of directors to conduct internal investigations. He also advises clients on regulatory, compliance and risk management issues both within and outside the context of litigation. 


Prior to joining Armstrong Teasdale, Jason spent 20 years in private practice at other international and regional law firms in Boston.


  • Suffolk University Law School  (J.D., 2000)
    • Moot Court Board
    • Suffolk Journal of Trial and Appellate Advocacy
  • Brandeis University  (B.A., 1996)


  • Massachusetts
  • New York
  • U.S. Court of Appeals, First Circuit
  • U.S. District Court, District of Massachusetts

Professional Activities

  • American Bar Association
  • Securities Industry and Financial Markets Association, Member
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