Darrois Villey Maillot Brochier assists on governance and shareholders’ activism issues as well as strategic litigation, notably in the context of public tender and public M&A deals. The range of expertise also extends to stock-market offenses brought by the AMF and high-stake civil liability damage claims where the firm defends leading auditing and asset management firms. The practice is co-headed by Matthieu Brochier and Nicolas Mennesson. They are supported by key associate Wenceslas Le Chevalier.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Sector knowledge

Testimonials

Collated independently by Legal 500 research team.

  • ‘The team has mastered all aspects of stock market litigation.’
  • ‘Wenceslas Lechevalier is a future star in his field. He is competent, committed, and a very pleasant person.’
  • ‘The securities litigation team at the firm Darrois Villey Maillot Brochier is an essential reference in its field.’
  • ‘Matthieu Brochier is an exceptional lawyer, combining great theoretical and legal mastery with great efficiency in obtaining concrete and optimal results for his clients.’
  • ‘Darrois has one of the leading stock market litigation practices in Paris. They are a 'go to' team for complex, stock market related disputes. They are excellent litigators with a commercial and strategic focus.’
  • ‘Matthieu Brochier and Nicolas Mennesson have very high intellectual and strategic capabilities, deep experience of the most complex stock market related disputes, and excellent client handling skills. ’

Key clients

  • Bouygues SA
  • BPCE
  • Capgemini
  • Crédit Agricole
  • Deloitte
  • Natixis
  • RSM
  • Safran
  • Sanofi
  • Société Générale
  • Tullett Prebon

Work highlights

Represented Natixis Investment Managers (NIM), Natixis, and BPCE in the largest financial class action ever brought in France.
Successfully represented several entities of the Credit Agricole Group (CAC 40) in a collective action brought by the ADAM (“Association de défense des actionnaires minoritaires”).
Represented Deloitte in a collective action brought early 2025 before the Paris Commercial Court by hundreds of shareholders against Emeis (formerly Orpea), its directors, and its auditors.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Matthieu Brochier
Matthieu Brochier
Nicolas Mennesson
Nicolas Mennesson
Leading associates

Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.

Wenceslas Le Chevalier
Wenceslas Le Chevalier
Practice head

Matthieu Brochier; Nicolas Mennesson

Other key lawyers

Wenceslas Le Chevalier