Jérôme de Ponsay is an associate in the Brussels office of Latham & Watkins and a member of the firm’s Global Antitrust & Competition Practice.

Jérôme advises clients in all areas of European competition law, with specific experience in multijurisdictional merger control filings, behavioral cases, as well as regulatory issues.

Jérôme worked in-house supporting legal teams of a multi-national technology company in competition law and Digital Markets Act (DMA)-related matters during a six-month secondment.

Prior to joining Latham, Jérôme worked as an associate in the Brussels office of a leading international law firm. He was also a trainee in the Brussels and Paris offices of various leading international law firms and the Director General for Competition at the European Commission.

A selection of Jérôme’s experience includes advising:

  • GRAIL in the European Commission’s review of its acquisition by Illumina, a landmark case concerning application of the referral powers under Article 22 of the EU Merger Regulation and associated gun-jumping, restorative measures investigations and litigation before the General Court and Court of Justice in Luxembourg
  • MGM in connection with its US$9 billion acquisition by a multinational technology company
  • BC Partners in its sale of Synthon, a multinational generics pharmaceutical business
  • Hyatt Hotels Corporation on its acquisition of Playa Hotels & Resorts N.V., an operator of all-inclusive resorts in Mexico, the Dominican Republic, and Jamaica
  • Worldline in its strategic partnership with Credit Agricole for the creation of a leading merchant payment services provider in France
  • SATS in its €1.3 billion acquisition of Worldwide Flight Services (WFS)
  • Agility Public Warehousing Co. in obtaining unconditional global merger and FDI clearance in 15+ jurisdictions for the US$4.1 billion sale of Agility's Global Integrated Business to DSV Panalpina, a transport and logistics company
  • A multinational technology company in connection with the European Commission's investigation into its use of third party sellers' data*
  • A multinational technology company in connection to the European Commission's inquiry into the Internet of Things sector*
  • A multinational technology company in its acquisition of a stake in Deliveroo, which was approved after a full Phase II investigation before the UK CMA*  
  • A multinational technology company in relation to a number of requests for information received from national competition authorities/the EC* 
  • A technology company in a transaction in the video game industry approved after a Phase I before the European Commission*
  • A leading media company in a transaction approved conditionally by the European Commission after a Phase I investigation*    
  • A major telecom company in its acquisition of a digital company approved unconditionally by the European Commission*
  • A client in the transport sector in an Article 101 complaint before the European Commission*
  • A bio-tech company subject to an investigation by the European Commission under Articles 101 and 102 in relation to licensing practices*
  • A company investigated by the European Commission for having provided incorrect and misleading information during a merger control procedure*

*Matter handled prior to joining Latham

Bar Qualification

  • Avocat (Paris)
  • Brussels Bar - E List

Education

  • LL.M. in European Law, College of Europe, Bruges, 2015

Languages Spoken

  • English
  • French
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February 20, 2025 Recognition

Fintech Group of the Year: Latham

Firm honored by Law360 for advising startups, financial institutions, VCs, digital asset and Web3 participants, and corporations on their most innovative and complex transactions, investigations, litigation, and regulatory matters.