Image: Michael F. Murray

Michael F. Murray

Partner, Litigation Department


Michael Murray is a partner in the Antitrust and Competition practice of Paul Hastings and is based in the firm’s Washington, D.C. office. Mr. Murray brings significant government antitrust and competition experience, having most recently served as the Principal Deputy Assistant Attorney General in the Antitrust Division at the Department of Justice (DOJ), where he oversaw the work of approximately 350 lawyers and 50 economists.

While at the Antitrust Division, Mr. Murray supervised numerous significant civil antitrust matters—including merger and conduct investigations, litigation, settlements, and appeals—and criminal prosecutions, including investigations, trials, and appeals. He led teams that brought novel and traditional merger challenges, launched significant monopolization cases, litigated the first-ever live-witness Tunney Act hearing, negotiated complex merger divestitures, settled the largest consent decree enforcement in decades, and investigated complex conduct matters through the Civil Conduct Task Force and the new Financial Services, Fintech, and Banking Section. Mr. Murray personally argued the largest vertical merger appeal and the most significant monopolization appeal in recent decades and filed over fifty Supreme Court, appellate court, and district court briefs on unilateral and joint conduct, class actions, labor, exemptions and immunities, criminal law, and intellectual property. He also oversaw all criminal matters, from preliminary investigation to Supreme Court, including cases involving financial and labor markets, compliance programs, and ACPERA. Mr. Murray had direct involvement in matters across a range of industries, including fintech, financial services, banking, media, entertainment, digital platforms, telecommunications, health care, consumer products, transportation and agriculture. Finally, he led case coordination and policy development with international competition agencies, as well as state enforcers.

Mr. Murray joined the Antitrust Division from the Office of the Deputy Attorney General, where he served as an Associate Deputy Attorney General. In that office, he had oversight responsibility for the Antitrust Division, the Civil Division, and criminal law policy initiatives. Mr. Murray served on the Deputy Attorney General’s Corporate Enforcement and Accountability Working Group, which issued policies on ability to pay determinations and piling on, the Associate Attorney General’s Regulatory Reform Task Force, which issued policies on the use of guidance documents, and the Civil Division’s Affirmative Civil Litigation Group, which issued policies on the False Claims Act.

Mr. Murray previously was in private practice, where he litigated a variety of antitrust and commercial disputes at the appellate and trial levels, and served as an Assistant United States Attorney in the U.S. Attorney’s Office for the Eastern District of Virginia, where he supervised, briefed, argued appeals, and prosecuted cases in district court. He clerked on the U.S. Court of Appeals for the Ninth Circuit for Judge Diarmuid F. O’Scannlain and on the U.S. Supreme Court for Justice Anthony M. Kennedy.


  • Yale University, J.D., 2009
  • Princeton University, A.B. (summa cum laude), 2006


  • Novel Section 2 merger challenge in the financial services industry
  • Litigated Section 7 merger litigation in the transportation industry
  • First-ever live-witness Tunney Act hearing regarding merger consent decree in health care industry
  • Largest consent decree enforcement in the past twenty years in media and entertainment industry
  • Merger settlements involving complex divestitures in fintech and consumer products industries
  • Largest vertical merger appeal in recent decades, which involved the telecommunications industry
  • Most significant Section 2 monopolization appeal in decades, involving intersection of antitrust and intellectual property law (FTC v. Qualcomm)
  • Novel criminal cases involving financial and labor markets, compliance programs, and ACPERA
  • Filed over fifty Supreme Court, appellate court, and district court briefs on unilateral and joint conduct, class actions, labor, exemptions and immunities, criminal law, and intellectual property
  • Appeal of largest health care fraud sentence in nation’s history
  • Federal Circuit en banc briefing on Section 101 patent eligibility issues

    Engagement & Publications


    • Courthouse Steps Decision Webinar: NCAA v. Alston (Teleforum, 2021).
    • Implications of 1-800 Contacts v. FTC (ABA Panel, 2021).
    • The Muscular Role for Antitrust in Fintech, Financial Markets, and Banking (University of Michigan Law School, 2020).
    • Antitrust Federalism (George Mason University Law School, 2020).
    • Recent Developments and Emerging Trends in Litigation (N.Y. State Bar Association, 2020).
    • The Jurisprudence of Direct and Indirect Purchasers (International Business Competition Committee, 2019).
    • Meet the DAAGs (ABA Spring Meeting, 2019)
    • Innovation & Competition Policy (Mentor Group, 2019)
    • Antitrust Enforcement in Labor Markets (Santa Clara University, 2019).


    • How To Mitigate Antitrust Risk In ESG Efforts, Law360 (October 19, 2021)
    • Antitrust Enforcement in Labor Markets, 59 SANTA CLARA L. REV. 561 (2020)
    • Private Management of Public Spaces, 34 HARV. ENVTL. L. REV. 179 (2010)
    • Note, The Law of Describing Accidents, 118 YALE L.J. 1484 (2009)


    • Vice-Chair of the ABA Antitrust Section’s Federal Civil Enforcement Committee 

    Practice Areas

    Antitrust and Competition
    Investigations and White Collar Defense
    Intellectual Property
    Appellate Litigation




    District of Columbia Bar
    Maryland Bar


    Yale Law School, J.D. 2009
    Princeton University, A.B. 2006

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