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Olivier Thebault



Thebault Olivier
Olivier Thebault



Olivier specialises on corporate and securities law. Olivier advises companies, shareholders and investors (including, public entities and investment funds) as well as underwriters on the full range of equity capital markets transactions, including initial public offerings, rights offerings and other share capital increases, issuance of equity-linked securities (convertible bonds, exchangeable bonds, warrants) or block trades, as well as mergers, acquisitions and disposals. Olivier’s practice also includes capital markets-related regulatory advice and corporate governance matters.

Olivier regularly speaks at conferences and seminar organised by Allen & Overy or market associations.

Rising Star Partner
IFLR 1000 2021 - France (Capital Markets: Equity)

"The "excellent" Olivier Thébault boasts expertise in IPO, convertible bond and share buyback mandates. His client portfolio includes banks and domestic investment companies."
Chambers Global/Europe 2021 - France (Capital Markets: Equity)
"Olivier Thébault is A&O’s equity capital markets expert. Always a great pleasure to work with him in confidence."
Legal 500 EMEA 2021 - France (Capital Markets: Equity)
"As part of the firm's wider capital markets practice, and with complementary tax and corporate capabilities, counsel Olivier Thébault and practice heads Diana Billik and Marc Castagnède are key pillars in the firm's Paris offering, not the least due of their combined ability to assist with French, English and US law, alike. "
Legal 500 EMEA 2021 - France (Capital Markets: Equity)

Rising Star

Band 4
Chambers Global/Europe 2020 - France (Capital Markets: Equity)

Rising Star
IFLR1000 2020 - France (Capital Markets: Debt & Equity)

Olivier Thebault assists clients with significant IPOs, rights issues and convertible bonds matters, demonstrating additional dexterity in accelerated bookbuild offerings. He elicits praise from clients for being "a hard-working guy who has a bright future ahead of him in capital markets in France."
Chambers Global/Europe 2020 - France (Capital Markets: Equity)

"Olivier Thebault is highlighted for his "excellent expertise in the market." He assists clients with IPOs, rights offerings and the issuance of convertible bonds. He acted for the underwriter syndicate on a EUR1.4 billion rights issue carried out by Amundi."
Chambers 2019 - France (Capital Markets: Equity)

Other noteworthy experience includes advising:

  • Kepler Cheuvreux and its shareholders on the investment of Atlas Merchant Capital and Eres in Kepler Cheuvreux
  • The underwriters on the initial public offering and the rights offering of Amundi
  • The underwriters on the initial public offering of ALD
  • The underwriters on the initial public offering of Spie
  • Korian on its issuances of convertible bonds
  • Accor on its issuance of convertible bonds
  • Ubisoft on its issuances of convertible bonds
  • The underwriters on the issuances by Artemis and Kering of bonds exchangeable for Puma shares
  • Airbus on the disposal of Dassault Aviation shares by way of block trades and exchangeable bonds
  • Wendel on the disposal of Saint-Gobain shares by way of block trades and exchangeable bonds

Experience highlights



Allen & Overy LLP
52 avenue Hoche
75008 Paris

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Admitted to the Paris Bar- 2004


Post Graduate Degree, Private International Law, University of Paris I Panthéon-Sorbonne, 2003

Post Graduate Degree, Business and Tax Laws, University of Paris II Panthéon-Assas, 2002

MA, Business Law, University of Paris II Panthéon-Assas, 2001

Published work

  • Comment augmenter son capital avec un cours de bourse inférieur au pair ?, Option Finance n°1020, 16 mars 2009, pages 37-38
  • Rémunération des dirigeants : une obscure transparence, La, 12 janvier 2009

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