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Aaron Green

Principal Associate

Rising Star - Competition and Antitrust

Euromoney’s 2022 Expert Guides

Profile details

About Aaron Green

Aaron’s practice covers all areas of EU and international competition law, from merger control to cross-border investigations into anti-competitive behaviour. 

He has extensive experience of EU, UK and global merger filings and has advised clients on several complex Phase I and Phase II merger control filings requiring remedies to the European Commission and other international competition authorities. Aaron also regularly advises on cross-border investigations into anti-competitive agreements and abuse of dominance, global antitrust compliance and best practice, and on competition and regulatory issues in litigation and arbitration proceedings. He regularly advises clients on the impact of emerging digital regulatory regimes such as the EU’s Digital Markets Act, and on EU and domestic aviation regulation.

Aaron has advised clients across a broad range of sectors, with a particular focus on industries in transition, maritime and air transportation, and technology, telecoms and media sectors.

He speaks English and French.

Recent work

Aaron’s experience includes advising:

  • Hyundai Heavy Industries Holdings on the EU merger control aspects of its proposed acquisition of Daewoo Shipbuilding and Marine Engineering, which was subject to an in-depth Phase II review by the European Commission.
  • Saint-Gobain on the global merger control strategy for its $2.3bn all cash acquisition of GCP Applied Technologies, including the merger control processes in Europe and the UK where unconditional Phase I clearances were obtained.
  • AstraZeneca on the EU and UK merger control aspects of its $39bn acquisition of Alexion Pharmaceuticals. 
  • Maersk Line on the merger control clearances of its acquisition of Hamburg Süd in over 20 jurisdictions including the EU, China and South Korea.
  • Holcim on the merger control aspects of its $43bn merger of equals with Lafarge, and the subsequent divestment of businesses in 15 countries.
  • CK Hutchison on the €21.8bn combination of its Italian mobile business with Wind Italy to create the largest mobile operator in Italy, including the negotiation of a complex remedy package.
  • The administrators of Monarch Airlines on the EU and UK aviation regulation aspects of their successful sale of Monarch’s airport slots, including before the UK Civil Aviation Authority and in proceedings in the High Court of England & Wales, which were successfully overturned in the landmark judgment of the Court of Appeal.
  • The administrator of Flybe on the antitrust and airline regulation aspects of the administration, including before the Civil Aviation Authority.
  • On the European Commission’s antitrust investigation into cross-border access to pay-TV.


  • Solicitor, England and Wales
  • Solicitor, Ireland
  • Postgraduate Diploma in EU Competition Law, King's College London: 2015
  • Legal Practice Course, BPP Law School London: 2012
  • Master I en Droit Europeen, Universite de Rennes I: 2011
  • LLB with Honours in European Law (Maitrise), University of Exeter: 2007-2011