Martin Wagner
He is qualified in the U.S., UK, and EU and has practiced across Brussels, London, and Washington DC, representing clients before the European Commission, CMA, FTC, and DOJ including in some of the most high-profile antitrust matters in recent years.
Prior to joining Weil, Martin clerked at the Court of Justice of the European Union and worked at the British American Chamber of Commerce in New York and London. At Oxford, he completed the BCL with distinction and worked as a research assistant to Ariel Ezrachi, Professor of Competition Law.
Martin contributes to the American Bar Association Antitrust Section as a drafter for the ABA’s flagship Antitrust Law Developments publication and the DOJ Civil Antitrust Practice and Procedure treatise.
He was shortlisted for Junior Lawyer of the Year at the 2025 National Junior Lawyers Division Awards of the Law Society of England & Wales.
Representative experience includes acting for:*
- Microsoft on its $10 billion investment in OpenAI and its investment in Mistral
- Microsoft on its ~$70 billion acquisition of Activision Blizzard, Inc., before the European Commission
- A leading tech company in several European Commission antitrust investigations into artificial intelligence pursuant to Article 101 and 102 TFEU
- A leading tech company in a European Commission antitrust investigation into datacentre infrastructure
- A third party on the Vodafone / CK Hutchinson JV CMA Phase 2 merger inquiry
- Brookfield Asset Management and its affiliates in multiple matters
- Sunoco LP in its pending $9.1 billion acquisition of Parkland Corporation.
- Groupe Lactalis on its $2.1 billion acquisition of the U.S. yogurt business of General Mills.
- Veolia on its $15.44 billion acquisition of Suez to create the world’s largest water and waste management company
- Google in the Android appeal of the largest ever $5 billion antitrust fine before the EU Courts
- Google in relation to Digital Markets Act compliance
- Google in multiple Android-related investigations undertaken by the Competition Commission of India
(*including from previous firm)