Thanks to its in-depth knowledge and involvement alongside leading publicly listed companies, Cleary Gottlieb Steen & Hamilton’s team is regularly retained by leading investors and corporations to assist with public tender offer-related litigation and AMF-led investigations relating to breach of securities rules. The practice is co-headed by Jean-Yves Garaud and Delphine Michot.

Darrois Villey Maillot Brochier ranks among the undisputed leaders in the field with a prominent client base comprising many CAC 40 and large French companies and investors, that entrust the firm with their most sensitive matters starting with public tender offer litigation. The team also provides strategic guidance on securities rules and assists companies facing AMF investigations for securities law breaches. The practice is co-headed by Matthieu Brochier and Nicolas Mennesson. They are supported by key associate Wenceslas Le Chevalier.

Hogan Lovells (Paris) LLP's Arthur Dethomas has extensive experience advising public companies and their investors, notably on governance issues and in shareholders conflicts. He also regularly defends investment funds, companies and senior executives in AMF’s securities breach investigations (insider trading notably).

Linklaters is mandated by companies, investment funds and financial newspapers to assist with AMF investigations regarding stock-market rules offenses, notably pertaining to financial communication issues. The firm also assists clients with takeover disputes involving the AMF. Arnaud de La Cotardière and Jean-Charles Jaïs are the key names.

Rossi Bordes AARPI 's Eric Boillot cumulates a wealth of experience advising asset management firms as well as traders and senior executives in their dealing with AMF investigations regarding public tender offers and other stock-market breach accusations (price manipulation, insider dealing). He also assists asset management firms with AMF-led regulatory compliance investigations. Dominique Bordes also contributes.

Simmons & Simmons‘  Thierry Gontard ‘s notoriety is second to none in the field and owes him mandates from leading asset management firms and investment banks to advise on highly sensitive AMF-led investigations linked to public tender offers, restructuring of public companies and securities law breaches. His expertise also encompasses advising asset management firms on AMF’s regulatory compliance investigations and litigation.

White & Case LLP houses a strong team that was further enhanced with the arrival of all rounded litigator Kami Haeri  from Quinn Emanuel Urquhart & Sullivan, LLP in January 2024. Under the leadership of the excellent  Diane Lamarche, the team acts for leading financial institutions, investment funds and some publicly listed companies and executives, which it regularly defends in AMF’s stock-market breach investigations as well as in the context of shareholders’ activism campaigns and debt restructuring of listed companies. The practice also provides guidance to listed companies on governance issues. Félix Thillaye , who was promoted to partner in 2024, also contributes.

A&O Shearman ’s strong litigation and financial services know-how earns the firm mandates to assist financial institutions with AMF investigations led in relation to stock-market breach and follow-on disputes. The practice, which also represents some corporations, also assists client with regulatory, compliance and internal investigations. Dan Benguigui and Erwan Poisson are in charge.

Launched in 20212, boutique firm Mirieu Sauty ranks among the few rare firms in France that are entirely specialised in dealing with AMF-related work. The team notably assists executives in dealing with AMF stock market offenses investigations, while its area of strength lies in advising leading asset management firms. crowdfunding platforms and banks facing AMF compliance and monitoring audits. The firm is co-headed by Claire Sauty de Chalon and Caroline Mirieu de Labarre  .

Julien Visconti, at Visconti, Grundler & Artuphel, focuses at advising minority shareholders (hedge funds) launching activist campaign and litigation proceedings involving France’s most high-profile publicly listed companies, often in relation with high-profile public tender offers. He also assists individuals and other stakeholders facing AMF’s securities law breach investigations.

Weil, Gotshal & Manges LLP's all-rounded litigator Didier Malka has experience defending companies facing AMF’s investigations for securities law breaches (based on financial communications or insider dealing issues notably). He also advises public companies in shareholders disputes.