Marc Castagnede
Marc specialises in mergers and acquisitions as well as private equity for listed and not-listed companies, financial institutions and investment funds.

Marc is a recognized practitioner by best lawyers since 2010 in banking and finance law, capital Markets law and mergers and acquisitions law with a specific focus on equity.

Expertise

Industries

Published Work

  • Faut-il imposer un seuil de renonciation dans les offres publiques volontaires, Revue Trimestrielle de Droit Financier, March 2011 
  • Bidders, Expect Regulatory Action, International Financial Law Review, p. 27 and seq., September 2008
  • Programmes de Rachat : Légitimité ou Suspicion ?, Les Echos, 12 December 2004
  • PPP's in France: At a Turning Point, Privatisation & Public Private Partnership Review 2004/2005, 1 June 2004
  • France/US Comparison: Shareholder Voting Rights, European Financial Services Regulation, 1 November 2003

Recognition

Marc Castagnède is responsive. He possesses excellent technical skills, strong communication and negotiation abilities and a real capacity for innovation and problem-solving.
Chambers France 2026 - (Corporate / M&A High-end capability)
Marc Castagnède is a technical lawyer. He is an excellent lawyer who is always available for his clients and very aware of all key deal metrics.
Chambers France 2026 - (Private Equity)

Awards

  • M&A: large to mid-market deals - Hall of Frame - Legal 500 EMEA France 2026

  • M&A Lawyer of the Year - LMG Life Sciences EMEA Awards France 2026

  • Impact Deal of the Year - Ipsen / ImCheck Therapeutics / Impact Deal of the Year – Yusen Logistics / Walden Group - LMG Life Sciences EMEA Awards France 2026

  • Band 4, Chambers Frances 2026 - (Private Equity)

  • Band 3, Chambers France 2026 - (Corporate / M&A High-end capability)

  • Band 2, Chambers Global 2024 - (Corporate / M&A High-end capability)

Qualifications

Admissions

Admitted to the Bar, Paris, 1996

Academic

LLM, Harvard Law School, 1994

Post Graduate Degree, Business and Economic Law, University of Paris I, 1991

Disclaimer
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.