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Antitrust/Competition Merger Review

We get deals cleared. Our deep understanding of competition authorities gives us the insight, experience, and credibility to secure cost-effective worldwide approval of complex transactions. We rely on frequent dealings with the regulatory agencies, and our team includes former senior government antitrust enforcers. Because of our track record, clients retain us to lead antitrust clearance, even when they use other firms as corporate counsel.

  • Global Reach and Coordination: Our extensive bench of competition attorneys practice before the U.S., EU, and UK competition authorities. We also regularly act as global coordinator of merger and foreign direct investment (FDI) review. We draw on a network of leading independent antitrust and FDI specialists across over 45 jurisdictions, enabling us to provide a “one-stop shop” experience for our clients.

  • Deep Understanding of Global Competition Authorities: Our antitrust attorneys have held significant senior leadership positions in the Federal Trade Commission, Department of Justice, and the European Commission.

  • A Team Built to Handle the Toughest Transactions: Our team has been entrusted with our clients’ most challenging mergers — 24 transactions valued at more than US$1 billion and 21 in-depth merger investigations in the last three years alone.

Experience Highlights

  • Pfizer in its $43 billion acquisition of Seagen Inc., a world leader in antibody-drug conjugates (ADCs).
  • Sony in its $3.6 billion acquisition of game software developer Bungie. 
  • Thermo Fisher Scientific in its $21 billion acquisition of PPD, a global contract research organization. 
  • Fitbit in its $2.1 billion sale to Google. 
  • BP in securing FTC clearance of its $5.6 billion sale of BP's entire business in Alaska, including all of its upstream and midstream businesses in the state, to Hilcorp, the largest private operator in Alaska.
  • AbbVie in its $63 billion acquisition of Allergan, manufacturer of the well-known medication Botox. 
  • Bristol-Myers Squibb in numerous transactions including its $90 billion acquisition of Celgene. 
  • Boston Scientific in its $4.2 billion acquisition of BTG plc and the related divestiture of its microspheres business to Varian Medical Systems.
  • Adobe in obtaining clearance regarding the company's $4.75 billion acquisition of Marketo, the leading marketing cloud platform for business-to-business marketing engagement.
  • AT&T Inc. in its successful $85.4 billion stock-and-cash acquisition of Time Warner Inc., in which Arnold & Porter successfully defended the first vertical merger trial and appeal in decades.
  • Monsanto Company in the company's $66 billion acquisition by Bayer, as well as coordination of antitrust/competition approvals in almost 30 other jurisdictions worldwide. 
  • General Electric in obtaining antitrust clearance in the U.S. and Europe for the company's €12.35 billion acquisition of Alstom.

Key Contacts

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