Litigation - Securities Securities Regulation
Thomas J. McGonigle
Awarded Practice Areas
Biography
Mr. McGonigle focuses his practice on securities and investment regulation. His clients include broker/dealers, investment advisers, public companies, banks and individuals. He has experience in matters involving equity, fixed income, and derivative trading; broker/dealer and investment adviser compliance system design and review; fiduciary investment issues; regulatory registration issues; transactional disclosure issues; regulatory enforcement and grand jury representation; and litigation in federal and state courts, administrative proceedings, disciplinary hearings and arbitrations.
Overview
- Georgetown University, J.D., graduated 1982
- New York, New York State Bar Association
- District of Columbia, The District of Columbia Bar
- New York, New York State Bar Association
- District of Columbia, The District of Columbia Bar
- Georgetown University, J.D., graduated 1982
Client Testimonials
Awards & Focus

Named "Lawyer of the Year" by Best Lawyers® for:
- Securities Regulation, Washington, D.C. (2021)
- Securities Regulation, Washington, DC (2016)
Recognized in The Best Lawyers in America® 2026 for work in:
- Litigation - Securities
- Securities Regulation
Additional Areas of Practice:
- Litigation - Regulatory Enforcement (SEC, Telecom, Energy)
- Securities / Capital Markets Law
Special Focus:
- Broker-Dealer
- Enforcement
- Investigations
- Investment Management
- Regulatory
News & Media
Additional Information
- Legal Experience
- Murphy & McGonigle, Washington, DC, 2010 to present
- LeClairRyan, Washington, DC, 2001 – 2010
- McGuireWoods, LLP, Washington, DC, 1988 – 2001
- U.S. Securities and Exchange Commission, Enforcement Division, Branch Chief, 1986 – 1988
- U.S. Securities and Exchange Commission, Enforcement Division, Staff Attorney, 1984 – 1986
- King’s County District Attorney’s Office, Brooklyn, New York, Assistant District Attorney, 1982 –1984
- Other Court Admissions
U.S. District Court, District of Columbia
U.S. District Court, Eastern District of New York
U.S. District Court, Southern District of New York
U.S. Court of Appeals, Second Circuit
U.S. Supreme Court
U.S. District Court, Eastern District of New York
U.S. District Court, Southern District of New York
U.S. Court of Appeals, Second Circuit
U.S. Supreme Court
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