Mr Thierry Gontard > Simmons & Simmons > Paris, France > Lawyer Profile

Simmons & Simmons
75001 PARIS

Work Department

Finance Litigation / Corporate


Thierry specialises in corporate finance with a particular focus on stock exchange and financial markets, in particular public takeovers, initial public offerings, listings on Euronext and rights issues. He also has an extensive knowledge of finance litigation with a specific experience in the area of judicial and disciplinary proceedings before French courts and market regulators in connection with alleged breaches of stock exchange regulations and white collar crimes. He advises investment banks, insurance companies and public companies on mergers and acquisitions transactions, capital markets work (equity) and has been involved in privatisations.


Thierry Gontard became the managing partner of Simmons & Simmons Paris in 2005. Thierry is a French qualified lawyer, admitted to the Paris Bar in 1988. He joined Simmons & Simmons in 2001 as a partner of the Paris office having previously worked as a lawyer for Gide Loyrette Nouel.


French and English

Lawyer Rankings

France > Dispute resolution: Stock market litigation

(Leading individuals)

Thierry GontardSimmons & Simmons

Simmons & Simmons is recognised for its leading AMF regulatory expertise thanks to group head Thierry Gontard, who represents leading French and international banks, financial institutions and individuals. Gontard is regularly instructed to act in AMF enforcement investigations and stock-market litigation. UBS Limited London and France, Société Générale and Crédit du Nord are clients. Eric Boillot departed to Rossi Bordes AARPI in 2019.

France > Dispute resolution: Commercial litigation

Simmons & Simmons has state-of-the-art product liability litigation expertise, particularly in the healthcare sector, where the firm is handling some of the market’s largest high-profile disputes defending well-known pharmaceutical and healthcare companies. The practice is notably acting in the headline Levothyrox and Mediator cases. Practice head Jacques-Antoine Robert is a star in this field. In addition, the firm is also growing its shareholder conflicts and private equity disputes practice, through Guillaume-Denis Faure. Finally, the firm also acts for banks and financial institutions through Thierry Gontard, who also handles commercial litigation, while Etinenne Kowalski notably tackles criminal law issues.

Paris > Résolution des litiges > Contentieux boursier

(Les grands avocats du marché)

Thierry GontardSimmons & Simmons

Simmons & Simmons dispose d’une expertise réglementaire AMF de pointe grâce à Thierry Gontard qui dirige la pratique. Il représente de grandes banques françaises et internationales, ainsi que des institutions financières et des particuliers. Il intervient notamment lors de contrôles réglementaires, ainsi que dans des contentieux boursiers. UBS France Société Générale et Crédit du Nord sont clients. Eric Boillot a rejoint Rossi Bordes AARPI en 2019.

Paris > Résolution des litiges > Contentieux commercial et de droit des sociétés

Simmons & Simmons se range parmi les grandes références du marché pour la gestion du contentieux en responsabilité des produits, particulièrement dans le secteur de la santé où le cabinet se voit confier les affaires les plus emblématiques de la place par les plus grandes entreprises pharmaceutiques et de santé. Le cabinet joue notamment un rôle de premier plan dans la gestion des affaires de santé publique du Lévothyrox et du Mediator. À la tête de la pratique contentieuse, Jacques-Antoine Robert est une grande star dans son domaine. Parallèlement, le cabinet développe son positionnement sur le segment des conflits d’actionnaires et des litiges de private equity à travers Guillaume-Denis Faure. Enfin, Thierry Gontard est mandaté par de grandes banques et institutions financières et gère aussi des contentieux commerciaux, quand Etinenne Kowalski traite des dossiers de droit pénal.