"Patrick Jaïs has experience advising on public and private M&A, assisting clients with tender offers and divestments. His clientele spans the manufacturing and retail sectors." CHAMBERS EUROPE 2020 / "Clients praise his ability in international matters, underlining his strengths as "the quality of his analysis and his efficiency." CHAMBERS EUROPE 2019

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Patrick Jaïs intervenes in mergers and acquisitions, stock exchange regulations and complex restructurings. He also handles private equity transactions, representing both issuers and investors, and handles mergers and acquisitions and stock exchange litigation matters (including AMF and white collar proceedings). He mainly represents French and foreign-listed companies, investment funds and industrial groups.

Admitted to the Paris Bar in 1987, he holds an advanced degree (DEA) in business law from the University of Paris X Nanterre (1985).

He joined De Pardieu Brocas Maffei as a partner in 2009, after working at Fried Frank Harris Shriver & Jacobson in Paris (2005-2008) and Veil Jourde (1994-2005) as a partner and at Gide Loyrette Nouel (1987-1994) as an associate.

Patrick Jaïs is an Expert of the “Club des Juristes” and wrote some articles in his practice areas.

He was speaking during the conference organized by the Club des Juristes on the topic: “Quelles evolutions pour la commission des sanctions?” (9th July 2013, Maison de la recherche, Paris) and during the Global M&A Forum in London, the 7th July 2015, on the topic “Trends and innovations in M&A deals”.

He was also speaking during the “4th Mergers and Acquisitions in the Technology Sector Conference” by the IBA Corporate and M&A Law Committee and the IBA Technology Law Committee in Barcelona the 28th and 29th March 2019 on the topic “Remedies of M&A deals – protection and enforcement“.


  • Données de connexion et libertés publiques Le Club des Juristes, September 21, 2020
  • Investissements directs étrangers : la renaissance du souverainisme Le Club des Juristes, May 4, 2020
  • “Les règles de l’impartialité dans la procédure AMF” Décideurs, September 2013
  • “Vers l’égalité des armes dans la procédure AMF” Les Echos, 26 June 2013
  • “Enquête AMF – La lettre circonstanciée dans la procédure d’enquête AMF : un premier pas vers le contradictoire ?” La Semaine Juridique, June 3, 2013
  • “France – Treasury Shares Guide 2012” IBA Corporate and M&A Law Committee, May 2012
  • “Entretien M&A” Décideurs Stratégie Finance Droit

Press releases

Advising Cannae Holdings on the entry into exclusive negotiations with Eagle Football Holdings for the acquisition of a majority stake in Olympique Lyonnais

De Pardieu Brocas Maffei is the French counsel alongside Kirkland & Ellis (US counsel) to Cannae Holdings, Inc, financial partner of John Textor acting through Eagle Football Holdings LLC, in [...]

De Pardieu Brocas Maffei has advised a shareholder of Degrenne, a company listed on Euronext Paris at the time of the events, who was accused of alleged price manipulation

The shareholder was accused of having placed large and aggressive orders, which led to an increase in Degrenne's share price. The AMF Enforcement Committee (Commission des Sanctions), after having [...]

Approval by the Commercial Court of Rouen of the conciliation agreement entered into by and between Groupe COOP, Groupe Leader Price and Groupement U

De Pardieu Brocas Maffei has advised Coopérateurs de Normandie Picardie Coop group on the approval by the Commercial Court of Rouen of the conciliation agreement entered into by and between Groupe [...]

Advising Chargeurs Technical Substrates on the acquisition of a 51% stake in Hypsos

De Pardieu Brocas Maffei has advised Chargeurs Technical Substrates on the acquisition of a 51% stake in Hypsos, a Dutch communication agency. Within five years, Chargeurs Technical Substrates’ [...]