Guillaume Guérin

Counsel, Paris

Guillaume Guérin

Counsel, Paris

Guillaume Guérin is a counsel in the firm’s Paris office. His practice focuses on advising publicly listed and non-listed companies and their managers, investment funds, and financial institutions on a wide range of regulatory and compliance issues, investigations, and corporate transactions.

Guillaume has significant experience in investigation, control, and sanction proceedings before the French financial markets authority (AMF) and the Banking Authority (ACPR), as well as with matters requiring international cooperation with foreign regulators including the Securities and Exchange Commission (SEC) and with any subsequent judicial proceedings.

He also has extensive experience advising investors, publicly listed companies, and their managers on financial markets transactions and regulations, including public mergers and acquisitions, tender offers, initial public offerings (IPOs), the securities issuances, initial coin offerings (ICOs) as well as on corporate governance and financial communications matters.

Guillaume is regularly recognized by The Legal 500 in its Stock Market Litigation category in France. He has also been recognized by Leaders League in the “Highly Recommended” category for Compliance in France.

Prior to joining the firm, Guillaume was a senior associate in DLA Piper’s Paris office and an associate at Dentons (formerly Salans). Before that, he spent five years at the AMF in the Investigations department and the Legal Affairs department.

Guillaume holds an LL.M. from the University of Virginia School of Law and a Master of Laws (DJCE-DESS) in business law and taxation from the University Jean Moulin Lyon III.

Guillaume is fluent in French and English.

Guillaume Guérin is a counsel in the firm’s Paris office. His practice focuses on advising publicly listed and non-listed companies and their managers, investment…

Education

University of Virginia School of Law (LL.M. 2001); Université Jean Moulin Lyon III (DJCE-DESS 2000)

Bar Admissions

Paris, New York State

Activities and Affiliations

Member, French Securities Lawyers Association (ADB)

Lecturer, University Paris Dauphine

International law firm Cohen & Gresser is pleased to announce that its Paris office has once again been recognized in The Legal 500’s 2022 Europe, Middle East, and Africa (EMEA) guide for its work in five practice areas: Commercial Litigation, Employment, IT and Internet, Stock Market Litigation, and Tax. The Legal 500 recognizes practices that are “providing the most cutting edge and innovative advice to corporate counsel.” Clients recognized C&G for its “ability to synthesise, analyse and argue matters” and noted that the firm “has an extensive technical track record and is able to support French and foreign clients” on all types of issues. Two C&G lawyers received top-level rankings and have been recognized as “Leading Individuals” in their respective practice areas. The full list of C&G lawyers recognized in The Legal 500 2022 EMEA guide includes:  

Guillaume Guérin was featured in an article by Agefi-Dow Jones in which he discusses Vallourec’s (a multinational manufacturing company) contemplated share capital reduction and consolidation of shares.

Cohen & Gresser announces the expansion of its White Collar Defense & Regulation team in Paris. Partner Muriel Goldberg-Darmon and Guillaume Guérin will advise listed companies and their managers, investment funds, insurance companies, and financial institutions on a wide range of regulatory and compliance issues, investigations, and corporate transactions.
In this article for Finascope, Muriel Goldberg-Darmon, Guillaume Guérin, and Pierre Wolman discuss how the new Control Guidelines published by the French Anticorruption Authority (AFA) clarify the sequence of the control procedure and integrate the current practices of the AFA in terms of control.

In this bylined article for Finascope, Muriel Goldberg-Darmon, Guillaume Guérin, and Pierre Wolman discuss the main contributions of the guide published on 16 March 2022 by the Strategic Information and Economic Security Service (SISSE), the French Business Federation (MEDEF), and the French Association of Private Companies (AFEP). This guide offers companies a methodology for classifying their “sensitive” data following the reform of the French blocking statute.

In this article for Finascope, Muriel Goldberg-Darmon, Guillaume Guérin and Pierre Wolman discuss France’s new whistleblower protection framework, which follows the adoption of the European whistleblowing Directive of 2019. In particular, they analyze the changes made to the “Sapin 2” law adopted in France in 2016.

In this article for Actes Pratiques et Ingénierie Sociétaire, Muriel Goldberg-DarmonGuillaume Guérin, and Pierre Wolman summarize and explain the different steps of a SPAC from a French-law perspective. They also address the issue of public information that must be provided to the public. (Subscription required.)

In this article for Finascope, Muriel Goldberg-Darmon, Guillaume Guérin, and Pierre Wolman discuss the Autorité des Marchés Financiers (AMF's) modification of the Investigations Guidelines (Charte de l’enquête et du contrôle) regarding the right to remain silent. They also examine its articulation with a potential obstruction and/or cooperation with the AMF during an investigation.

 
Muriel Goldberg-Darmon and Guillaume Guérin discuss the 2020 recommendations made by the French AMF (France’s financial markets regulator) during the pandemic regarding the handling of financial communications for publicly traded companies. In this article, Muriel and Guillaume explore the lessons that public companies can learn from such recommendations.

In this C&G client alert, Muriel Goldberg-Darmon, Guillaume Guérin, and Pierre Wolman discuss the implications of two recent French rules that are meant to strengthen France’s control over foreign investment.