Gregory P. Luib
Partner | Washington, D.C.
Gregory P. Luib

Gregory P. Luib represents clients before the Federal Trade Commission (FTC) and Department of Justice (DOJ) in merger reviews and conduct investigations, as well as in private antitrust litigation. He also defends clients in consumer protection matters before the FTC involving advertising, marketing, privacy, and data security practices.

With a career spanning more than a decade of government service and extensive private practice, Greg brings a unique perspective to merger reviews, government investigations, and consumer protection enforcement. Such experience equips Greg to counsel companies across a wide range of industries — including healthcare, technology, energy, and retail — ultimately helping clients achieve their business objectives while navigating federal and state antitrust laws.

Greg's government career at the FTC spanned ten years, during which he held senior roles that placed him at the center of the agency's enforcement and policy work. As attorney advisor to Commissioner Maureen K. Ohlhausen, he provided counsel on antitrust enforcement and competition policy matters at the highest levels of the agency. He also served as an attorney in the Mergers I Division of the Bureau of Competition, where he led merger investigations in the pharmaceutical, healthcare data, industrial gases, aerospace, and defense sectors. Earlier in his FTC tenure, he served as Assistant Director of the Office of Policy Planning, where his contributions to the agency's competition advocacy program earned him the Paul Rand Dixon Award, one of the FTC's most prestigious staff honors.

Before joining the FTC in 2005, Greg practiced at another international law firm, where he focused on merger review, antitrust counseling, and litigation.

Greg is recognized in The Legal 500 for Antitrust/Merger Control and is listed as "Recommended" in the Lexology Index for Competition. He plays a leading role in publishing the Dechert Antitrust Merger Investigation Timing Tracker (DAMITT), a widely followed resource that tracks and analyzes U.S. antitrust merger investigation trends. Greg is an active leader in the ABA's Section of Antitrust Law, where he serves on the Council overseeing the Section's work.

  • Represented Albertsons in defending its proposed sale to Kroger against unprecedented litigation challenges by the FTC and two state attorneys general.
  • Acted for CVS Health in its $8 billion acquisition of Signify Health and $10.6 billion acquisition of Oak Street Health in 2023, with DOJ approving Signify following a second request investigation and Oak Street without a second request.
  • Represented DTE Energy in obtaining FTC approval for an acquisition of a competing natural gas pipeline, after negotiating a merger remedy limited to modification of the merger agreement.
  • Guided CVS Health to antitrust approval for its $70 billion acquisition of Aetna, the largest healthcare services deal ever and the largest announced deal of 2017.
  • Advised a leading U.S. airline in regulatory proceedings before DOT and foreign competition authorities in connection with applications for antitrust immunity for joint business agreements with international partners.
  • Advised a medical device manufacturer in its acquisition by a competitor, avoiding an FTC second request in the process.
  • Represented a financial services company in an FTC consumer protection matter, convincing the agency to close its investigation.
  • Represented a consumer goods company in an FTC investigation into its U.S.-origin marketing claims, obtaining a closing letter from the agency.
  • Represented Procter & Gamble in its acquisition of Gillette.
  • Represented R.J. Reynolds in its acquisition of Brown & Williamson.
  • Represented DIRECTV in its acquisition by News Corp.

Includes matters handled at Dechert or prior to joining the firm.

  • "Recommended" - Lexology Index: Competition (2026)
  • Antitrust Merger Hot Documents Collection — Dechert Webinar (September 2025)
  • DAMITT 2024 Year in Review — Dechert Webinar (January 2025)
  • Antitrust in the Biden Administration — Ohio Hospital Association Annual Meeting, Columbus, OH (June 2023)
  • Clash of the Global Titans: Privacy v. Competition — ABA Antitrust Law Section Spring Meeting, Washington, DC (April 2022)
  • Navigating Recent Developments in Global Merger Enforcement — Dechert Webinar (October 2020)
  • Should Antitrust Tame the Global Tech Giants? — ABA Section of Antitrust Law Spring Meeting, Washington, DC (April 2019) 
  • State Boards and Professional Licensing Post-NC Dental — American Health Lawyers Association/ABA Section of Antitrust Law Antitrust in Health Care Conference, Arlington, VA (May 2018)
  • Whose Internet Is It Anyway? — ABA Section of Antitrust Law Spring Meeting, Washington, DC (March 2018)
  • Noerr-Pennington and the FTC — ABA Section of Antitrust Law Exemptions & Immunities Committee Program, Washington, DC (January 2018)
  • The FTC’s New Section 5 Policy Statement: A Step Forward? — ABA Section of Antitrust Law Unilateral Conduct Committee Program, Washington, DC (September 2015)
  • Reflections on the Supreme Court’s North Carolina Dental Decision — Citizen Advocacy Center Event, Washington, DC (June 2015)
  • Fundamentals of Antitrust Exemptions and Immunities — ABA Section of Antitrust Law Exemptions & Immunities Committee Program, Washington, DC (May 2014)
  • Healthcare Antitrust: Physician Contracting and Joint Ventures — 2013 Southeast Healthcare Provider Conference, Charlotte, NC (September 2013)
  • Insurance and Other New Antitrust Targets: The Politics and Legislative Process of Antitrust Exemptions and Immunities — ABA Section of Antitrust Law Spring Meeting, Washington, DC (April 2010)
  • Does Telecom Have a Future? — Supernova 2008: Challenges for the Network Age, San Francisco, CA (June 2008)
  • Net Neutrality and the Future of the Internet — ABA Annual Meeting, San Francisco, CA (August 2007)

 

Services Industries
    • University of Virginia, B.A., Economics, 1994, high distinction
    • University of Virginia School of Law, J.D., 1999, Virginia Tax Review
    • District of Columbia
    • New York
    • Supreme Court of the United States
    • ABA Section of Antitrust Law
      • Council Member (2025 - present)
      • Co-Chair, Committee Operations (2022 - 2025)
      • Vice-Chair, U.S. Comments & Policy Committee (2021 - 2022)     
      • Editorial Board Member, Antitrust Law Developments 9 (2020 - 2022)
      • Member, Long Range Planning Committee (2020 - 2021)
      • Co-Chair, Media & Technology Committee (2015 - 2020)
      • Chair, Exemptions & Immunities Committee (2013 - 2015)
      • Vice-Chair, Exemptions & Immunities Committee (2007 - 2012)
      • Vice-Chair, Programs Committee (2004 - 2007)
      • Member, Editorial Board, Annual Review of Antitrust Law Developments (2002 - 2004)

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