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Gide Loyrette Nouel A.A.R.P.I.

Work +33 1 40 75 60 00

Olivier Diaz

Work +33 (0)1 40 75 61 32
Gide Loyrette Nouel A.A.R.P.I.

Work Department

Mergers & Acquisitions / Corporate


Admitted to the Paris Bar in 1990, partner Olivier Diaz has over 25 years' experience in complex mergers and acquisitions, private equity operations, securities law and corporate law. His practice covers a wide variety of transactions, in particular public and private acquisitions, leveraged buyouts, joint ventures and corporate restructurings.

During his career, Olivier has worked with clients on the largest and most complex M&A transactions in France, particularly in industrial fields, such as telecoms, energy, financial institutions and the food industry. He also assists companies on complex governance issues and is regularly consulted by regulators on securities and corporate law issues.

Recognised unanimously as one of the most talented lawyers in the field of mergers and acquisitions, Olivier Diaz is regularly praised in the main international directories and by his peers as a great strategist, in particular as regards listed and non-listed operations.


Prior to joining Gide in which Olivier was previously partner from 1990 to 1998, he worked for two years at Linklaters (1998-2000), fourteen years at Darrois Villey Maillot Brochier (2000-2015) and three years at Skadden Arps Slate Meagher & Flom.


French, English


A graduate of Paris' political sciences institute Sciences-Po (1985) and of HEC business school in Paris (1987), Olivier also holds a postgraduate degree (DESS) in international taxation from Paris XI University (1987).



Within: Insurance

Gide Loyrette Nouel A.A.R.P.I. assists with contentious and non-contentious matters, especially in the finance and insurance and reinsurance sectors. Richard Ghueldre heads the practice, with Capucine Bernier as the other main practitioner. In recent work, the duo defended CNP Assurances subsidiary Filassistance International in several headline-grabbing civil litigation and criminal proceedings regarding Humania Consultants, its partners and clients. In a stand-out matter, Eurazeo instructed the practice to assist with the insurance aspects of its acquisition of Albingia; the team jointly worked with corporate expert Olivier Diaz. It also defended Axa in France's first finance and reinsurance class action, which further underlines the practice's excellent reputation. Clients also include AIG, Allianz and EDF. Of counsel Jonathan Rubinstein joined from DLA Piper.

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Mergers and acquisitions

Within: Leading individuals

Olivier Diaz - Gide Loyrette Nouel A.A.R.P.I.

Within: Mergers and acquisitions

Gide Loyrette Nouel A.A.R.P.I. continues to attract both large-cap and mid-cap transactions, making for an impressive list of recent domestic highlights in addition to several cross-border matters. On the domestic side, Didier Martin advised AccorHotels on the creation of a dedicated subsidiary for its ‚ā¨6.6bn HotelInvest operations. Internationally, Christophe Eck assisted Japanese electric motor manufacturer Nidec with the acquisition of Leroy-Somer's industrial alternators and drive systems division. SPIE, Amundi and Michelin are also clients. Other key contacts are Nad√®ge Nguyen,¬†Hugues Scalbert and¬†Anne Tolila.¬†Olivier Diaz¬†and Charles de Reals¬†joined from¬†Skadden, Arps, Slate, Meagher & Flom LLP.

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