Larissa C.Bergin


Washington + 1.202.879.5499

Larissa Bergin's practice addresses the antitrust concerns arising from M&A matters, joint ventures, federal investigations, and commercial practices. She has overseen the antitrust aspects of corporate M&A, including due diligence, risk-shift negotiations, Hart-Scott-Rodino (HSR) filings, Second Requests, investigational hearings, integration planning, and consent decrees with federal agencies. She works with clients in a variety of industries, including the technology, health care, retail, and pharmaceutical sectors. Many of Larissa's clients have international reach, and she has been involved in matters that require advocacy before governments throughout Asia, the EU, and North America.

Larissa also advises clients on corporate contracting and operational practices that can run afoul of the antitrust laws, including supplier agreements, information sharing, competitive benchmarking, and Robinson-Patman Act pricing matters.

At the start of her career, Larissa clerked at the U.S. Court of Federal Claims, where she addressed intellectual property, tax, and government contract issues, including Serco, Inc. v. United States (also referred to as the Alliant protest), a bid-protest case involving a $50 billion procurement for government-wide information technology and services.

Larissa is a member of the Antitrust Section of the American Bar Association and is chair of the Food, Drug and Cosmetics Law Section of the New York State Bar Association. She is admitted in the New York, Connecticut, and District of Columbia bars.

Larissa has been quoted on MSNBC regarding how Obamacare has affected M&A activity and in Getting the Deal Through on generic drug approval.


  • CoLift, Traxys Management and Optiver acquire Traxys GroupJones Day represented CoLift LLC, which sponsored the management buy-out of the Traxys Group, a leading global physical trader and merchant in metals and natural resources, together with Optiver, a global market maker and an investor group active in mining and natural resources led by Regent Mercantile Holdings Limited and The LOM Financial Group.
  • Apollo merges with THLJones Day served as antitrust and regulatory counsel in the sale of Apollo Tourism & Leisure Limited ("Apollo") to Tourism Holdings Limited ("THL") through a scheme of arrangement in relation to antitrust and regulatory clearances in Australia and New Zealand.
  • Sensata Technologies acquires DynapowerJones Day advised Sensata Technologies (NYSE: ST), a leading industrial technology company and provider of sensor-rich solutions and insights for customers, in connection with its acquisition of Dynapower Company, LLC, a leading provider of energy storage and power conversion systems, from private equity firm Pfingsten Partners for $580 million in cash.
  • Goode Partners acquires ReadyWiseJones Day advised Goode Partners in the acquisition and financing of ReadyWise, the leader in emergency food preparedness.
  • Solmax acquires U.S. geosynthetics manufacturer PropexJones Day served as antitrust and financing counsel to Groupe Solmax Inc. (Solmax) in the acquisition by Solmax of Propex Operating Company, LLC, a leading geosynthetics manufacturer with a long track record in the construction, transportation, mining, and automotive industries.
  • Sensata Technologies acquires Spear Power SystemsJones Day advised Sensata Technologies in its acquisition of Spear Power Systems, a leader in lithium-ion based energy storage solutions for mission-critical and demanding end user applications.
  • HD Supply acquired by The Home Depot, Inc. for $8.8 billionJones Day advised HD Supply, Inc. ("HDS") in its $8.8 billion acquisition by The Home Depot, Inc. ("Home Depot").
  • HD Supply sold its Construction & Industrial--White Cap business segment for $4 billion to an affiliate of Clayton, Dubilier & RiceJones Day advised HD Supply Holdings, Inc. in the $4 billion sale of its Construction & Industrial--White Cap business (also known as "White Cap"), a leading distributor of specialty concrete and construction products and services in North America serving professional contractors, to an affiliate of Clayton, Dubilier & Rice.
  • BBA Aviation sells Ontic for $1.365 billionJones Day advised BBA Aviation plc ("BBA") in the sale of its Ontic business to an investment fund affiliated with CVC Capital Partners for $1.365 billion.
  • NASDAQ Technology AB acquires Cinnober Financial Technology ABJones Day provided antitrust advice in relation to NASDAQ Technology AB's acquisition of Cinnober Financial Technology AB.
  • Fairmount Santrol and Unimin merge creating CoviaJones Day advised Fairmount Santrol in its merger with Unimin Corporation, a wholly owned subsidiary of SCR-Sibelco NV, in a tax-free, cash and stock transaction, creating a leader in proppant and industrial materials solutions.
  • Imerys merger with Kerneos receives antitrust clearanceJones Day represented Imerys S.A., a multinational manufacturer of industrial minerals, on the antitrust aspects of its €880 million acquisition of Kerneos, a global producer and supplier of specialty cements.
  • Newell Brands sells Winter Sports businesses to Kohlberg & Company for $240 millionJones Day advised Newell Brands Inc. (NYSE: NWL) in the sale of its Winter Sports businesses to private equity firm Kohlberg & Company for $240 million, subject to adjustment.
  • Nissan Motor Co. in global restructuring of Takata CorporationJones Day is representing Nissan Motor Co., Ltd. in connection with the global restructuring of Takata Corporation and its subsidiaries.
  • TDK acquires InvenSense for $1.3 billionJones Day advised TDK Corporation in its $1.3 billion acquisition of InvenSense, Inc.
  • AREVA sells subsidiary Canberra to Mirion-CharterhouseJones Day represented AREVA in the sale of its subsidiary, Canberra, a leading provider of innovative and cost-effective nuclear instrumentation solutions, to Mirion-Charterhouse.
  • NASDAQ obtains antitrust clearance for acquisition of U.S. Exchange Holdings and its three equity options exchangesJones Day assisted NASDAQ, Inc. in securing antitrust clearance from the U.S. Department of Justice in its acquisition of U.S. Exchange Holdings, Inc. and its three equity options exchanges (ISE, ISE Gemini, and ISE Mercury) from Deutsche Börse Group in a cash, bank debt, and bond deal valued at $1.1 billion.
  • NASDAQ obtains antitrust clearance for BoardvantageJones Day assisted NASDAQ, Inc. in obtaining antitrust clearance from the U.S. Department of Justice regarding its acquisition of Boardvantage, Inc., a leading board portal solution provider that also specializes in leadership collaboration and meeting productivity powered by the MeetX platform.
  • Boehringer Ingelheim sells U.S. injectable generics business and ANDAs to Hikma PharmaceuticalsJones Day advised Ben Venue Laboratories, Inc., a member of the Boehringer Ingelheim Group of Companies, on the antitrust aspects of two transactions with Jordan based Hikma Pharmaceuticals plc.
  • Strides Arcolab completes $1.6 billion sale of subsidiary to MylanJones Day advised India-based pharmaceutical company Strides Arcolab Limited ("Strides") on the antitrust aspects of the sale to Mylan Inc. of its Agila Specialties Global Pte. Ltd. ("Agila") subsidiary for $1.6 billion in cash.
  • Speaking Engagements

    • January 2023
      FTC's Proposed Rule Banning Noncompetes MCLE
    • January 2023
      FDA Commissioner Califf's First Year - Initial Focus Areas and What to Expect in 2023 New York State Bar Association Annual Meeting
    • January 2021
      Keynote Address with Acting Chief of Staff of the FDA, Julia Tierney, New York State Bar Association, Annual Meeting
    • March 2020
      FTC Enforcement Authority: Recent Challenges, American Bar Association
    • January 2019
      Blockchain in Healthcare, New York State Bar Association Annual Meeting
    • October 2018
      Beyond the Basics of Blockchain: Current and Future Use Cases and Corresponding Regulatory Development, New York State Bar Association
    • January 2018
      M&A Antitrust Risk Shifting Between Parties, Moderator, ABA Section of Antitrust Law
    • January 2018
      Developments in Drug Law, New York State Bar Association Annual Meeting
    • May 2017
      Broadcasting to a Different Audience: Interagency Review in Telecomm Mergers, moderator, ABA Section of Antitrust Law
    • January 2017
      Developments in Drug Law, New York State Bar Association Annual Meeting
    • December 2016
      Biosimilar Regulatory Compliance, Food and Drug Law Institute, Enforcement, Litigation, and Compliance Conference, Roundtable Discussion