Jeny M. Maier
{ Bio Portrait }

Jeny Maier guides major corporations through large, strategic M&A transactions, using her significant experience to advise on pre-merger notification requirements and substantive competitive issues. Jeny helps clients navigate antitrust issues throughout the life cycle of a transaction, from initial risk analysis and due diligence, to negotiating merger agreement terms, through antitrust agency review, investigation and, where needed, remedies. She also regularly counsels clients who are third parties contacted by the antitrust agencies in connection with merger investigations. Described in Who’s Who Legal as a “great competition lawyer with strong expertise in merger cases” and the “knowledge and ability to provide clear and prescient insight” in to the competition world, Jeny is a sought-after antitrust advocate.

In addition to her deal work, Jeny also has considerable experience assisting clients with responding to civil and criminal antitrust investigations, and defending related class-action litigation. Jeny also advises clients on antitrust issues relating to pricing practices, distribution and marketing arrangements, intellectual property license agreements, and standard setting activities.

Jeny works with clients in a variety of industries, including health care, pharmaceuticals, technology, manufacturing, telecommunications, and transportation. She has worked on a number of major deals in these industries, including Sunrun’s $3.2 billion acquisition of Vivint Solar; McKesson's $3.4 billion joint venture with Change Healthcare; Dell’s $67 billion acquisition of EMC; Johnson Controls International $2 billion sale of its Scott Safety business to 3M; and Stanley Black & Decker’s $900 million purchase of the Craftsman brand from Sears Holdings.

Jeny has been named a "Future Leader" in competition law by Who's Who Legal every year since 2017. Additionally, Legal 500 named her a "Bright Rising Star" in the area of antitrust law. She is active in the leadership of the American Bar Association Antitrust Section, serving as a Vice Chair of the Section's Serial Podcast Committee.

Before joining Axinn, Jeny spent ten years in the antitrust practice of a global law firm. Prior to that, she served as a legal intern for the Federal Trade Commission, Bureau of Competition, and for the US Department of Justice, Antitrust Division (National Criminal Enforcement Section).

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Professional Activities

  • Vice Chair, American Bar Association, Antitrust Law Section, Serial Podcast Committee (2022-2023)
  • Vice Chair, American Bar Association, Antitrust Law Section, Corporate Counseling Committee (2019-2022)
  • Editorial Board, American Bar Association, Antitrust Law Section, "Antitrust Law Developments" publication (2018-2019)
  • Young Lawyers' Advisory Panel, American Bar Association, Antitrust Law Section, Civil Practice and Procedure Committee (2013-2017)
  • American Bar Association, Health Law Section
  • American Health Lawyers Association


M&A Experience

  • Represented Tufts Health Plan in its merger with Harvard Pilgrim Health Care.
  • Represented Sunrun in its $3.2 billion acquisition of Vivint Solar, securing clearance without a Second Request investigation.
  • Ongoing representation of McKesson, including helping to secure clearance for its $3.4 billion health care technology joint venture with Change Healthcare (which was unconditionally cleared after a Second Request investigation), its $1.4 billion acquisition of CoverMyMeds, its $800 million acquisition of Medical Specialties Distributors (MSD), its $735 million acquisition of RxCrossRoads from CVS, its acquisitions of Labsco and Biologics, and the sale of its Enterprise Information Solutions business to Allscripts.
  • Acted as lead global coordinating antitrust counsel to Dell Inc. in connection with its $67 billion acquisition of EMC Corporation.
  • Global antitrust lead for Johnson Controls in the $2 billion sale of its Scott Safety business to 3M.
  • Represented Stanley Black & Decker in its $900 million purchase of the Craftsman brand from Sears Holdings.
  • Obtained clearance for Charles River Laboratories in its $585 million acquisition of WIL Research.
  • Represented Tyler Technologies, Inc. in its $670 million acquisition of New World Systems Corporation.
  • Represented Interactive Data Corporation in its $5.2 billion acquisition by Intercontinental Exchange Inc.
  • Represented SunGard in its $9.1 billion acquisition by Fidelity National Information Services.

Litigation Experience

  • Counsel for RelayHealth, a subsidiary of McKesson, in a treble-damages class action case alleging a conspiracy to monopolize electronic prescribing.
  • Counsel for the Alliance for Safe Online Pharmacies in a treble-damages antitrust action alleging a conspiracy to prevent from accessing internet platforms.
  • Counsel for Independence Blue Cross of Pennsylvania in the class-action MDL against the Blue Cross Blue Shield Association and individual Blue Cross and Blue Shield plans alleging that the plans' designated service areas and other rules are anticompetitive.



Thought Leadership



  • JD – The George Washington University Law School (2005)
  • BS – Georgetown University (2000)


  • District of Columbia
  • New York
  • US District Court District of Columbia
  • US District Court Eastern District of New York
  • US District Court Southern District of New York

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