Bredin Prat is one of the few market’s references when it comes to public take over and tender offer disputes, while also regularly defending companies or their employees in AMF-led market-abuse and insider trading investigations. Parallelly, the firm is also regularly entrusted to assist with governance and shareholders’ conflicts relating to leading publicly listed companies. Key names in the team include Florian Bouaziz  and white-collar experts Eric Dezeuze and Guillaume Pellegrin .

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.

Gide Loyrette Nouel A.A.R.P.I. has a strong involvement alongside major asset management firms which the firm assists with all their AMF regulatory compliance investigations and related disputes with investors. Additionally, the team also defends CEOs and companies facing AMF investigations bases on securities law breach allegations (market manipulation, insider trading). Jean-Philippe Pons-Henry is the key name in the practice, with asset management and financial regulation expert Benjamin Delaunay also contributing. Counsel Marie Robert-Schmid is also noted.

Viguié Schmidt & Associés ' excellent public M&A expertise regularly provides the firm with stock-market litigation mandates. The practice is mainly retained by top companies’ executives and board members to assist with AMF investigations led into market-abuse offenses, such as insider dealing. The practice is co-headed by Yves Schmidt , Nicolas Viguié and Daniel Villey .

Cohen & Gresser LLP‘s  Muriel Goldberg-Darmon is regularly entrusted by CEOs, high ranking executives, board members and employees of major publicly listed companies facing AMF investigations into breaches of securities rules such as insider trading practices. Among her recent achievements, she obtained a non-liability decision for a client from the AMF Enforcement Committee. The Parisian practice also advises financial institutions monitored by the AMF, while the access to the firm's US platform is another plus. The team also includes counsels Guillaume Guérin and Pierre Wolman .

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).

Jeantet 's Frank Martin Laprade   has a wealth of experience assisting CEOs, senior executives and financial firms facing AMF’s investigations regarding securities law breach or relating to public tender offers. He also assists investors with shareholders’ conflicts and public M&A related disputes. Counsel Marie Robin  also contributes.

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.

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.

Following the closure of Kramer Levin Naftalis & Frankel in Paris, financial regulatory experts Hubert de Vauplane and Hugues Bouchetemble and their team joined Morgan, Lewis & Bockius LLP in early 2025. The team is mostly entrusted by financial services and asset management fields in assisting with AMF and banking and financial regulators’ compliance investigations.

At De Pardieu Brocas Maffei, corporate partner Patrick Jaïs has strong expertise defending CEOs and shareholders facing AMF investigations for breach of securities law, including advising them before the agency’s Enforcement Committee. The firm, which has a strong presence among leading real estate companies, also assists client with AMF compliance investigations. Counsel  Alice Gaillard is another key name in the practice.