Arnaud Duhamel partage son temps entre les bureaux de Paris et de Londres. Il est rompu aux marchés des capitaux internationaux et financements structurés. Son expérience englobe les IPO, les émissions de droits de souscription, les transactions de capitaux et bon nombre de privatisations françaises.

Son domaine de compétences couvre également le financement et la restructuration de dettes à l'international, allant de programmes de notes à moyen terme aux titres anciens et hybrides, offres d'obligations à haut rendement, reconditionnement aussi bien qu'aux financements structurés et produits intégrant les instruments dérivés. Arnaud, membre de la ligne de métiers Banque & Finance est très actif dans les marchés émergents.

Il intervient régulièrement lors de séminaires à Paris et à Londres et est le co-auteur de "Titres et emprunts obligataires" (Banque Editeur, 2000).

Arnaud Duhamel est systématiquement référencé parmi les meilleurs experts en marchés de capitaux et dérivés par les guides juridiques internationaux Chambers, Legal 500, IFLR1000 et Best Lawyers.

« L’équipe est constituée de professionnels particulièrement réputés, parmi eux: Hubert Merveilleux du Vignaux, Melinda Stege-Arsouze (qui est spécialiste en droit américain), Arnaud Duhamel et Laurent Vincent. Ensemble, ils codirigent la pratique et assistent de grandes entreprises, des gouvernements, des investisseurs et de grandes institutions financières. »
Legal 500 Paris 2022 - Marché des capitaux : Obligations

« Arnaud Duhamel est un expert reconnu dans son domaine, disponible et accessible. »
Legal 500 Paris 2022 - Marché des capitaux : Actions

« The team assists with initial public offerings, capital increases, public M&A matters and private placements, including Rule 144A and Reg S placements in the US thanks to the expertise of the dual-qualified Melinda Stege-Arsouze who co-heads the practice with Arnaud Duhamel. »
Legal 500 EMEA 2022 - Equity

« Arnaud Duhamel and Laurent Vincent, the team is adept at advising on vanilla and structured matters. »
Legal 500 EMEA 2022 - Debt

« Arnaud Duhamel advises on IPOs, private placements and capital increases. He is active across the pharmaceutical and transportation sectors. Clients comment: "He is very knowledgeable and very familiar with the market." »
Chambers Europe & Global 2022 - Capital Market: Equity

« Arnaud Duhamel is a recognised expert in his field, available and accessible »
Legal 500 EMEA 2021 - Equity

« The French giant houses a strong raft of renowned practitioners, first-and-foremost practice heads: Hubert Merveilleux du Vignaux, Melinda Stege-Arsouze (a specialist in US securities law), Arnaud Duhamel and Laurent Vincent - all of whom have earned the trust of major corporations, governments, alternative capital providers and leading financial institutions alike. »
Legal 500 EMEA 2021 - Debt

« Arnaud Duhamel advises on IPOs, private placements and capital increases. He is active across the pharmaceutical and IT sectors and is praised by clients for being a deal-maker. »
Chambers Europe & Global 2021

« Gide Loyrette Nouel A.A.R.P.I. has a core focus on French issuer IPOs, but also has in-depth knowledge of US instruments, including Nasdaq listings, Regulation S and 144A transactions. Arnaud Duhamel is the key adviser and cross-border specialist Melinda Stege Arsouze is particularly active in private placements in the US. Counsels Théophile Strebelle and Guilhem Richard provide significant support. Recent work includes acting for Lysogène and Société Générale on Lysogène’s IPO on compartment C of Euronext Paris; advising BNP Paribas on a €143m capital increase for Société de la Tour Eiffel through preferential subscription rights; and handling Gensight Biologics’ private placement to investors in the US and Europe. The team has a strong following in the biotech sector, where clients also include Erytech Pharma and Inventiva. Goldman Sachs, Jefferies and Veolia are also clients. »
Legal 500 EMEA 2018

« Arnaud Duhamel splits his time between London and Paris and assists with cross-border ECM matters, with notable expertise in US-related transactions. Sources report: 'He is highly skilled and at the same time capable of thinking out of the box and seeing the big picture.' »
Chambers Global 2018

« Gide Loyrette Nouel demonstrates strength across the board of debt capital market financings, with 144A debt transactions by French issuers and Euro private placements areas of particular expertise. The team has a largely domestic workload but also excels in complex, cross-border matters, such as the work undertaken for Groupe FNAC on the issuance of €650m senior notes, which are governed by New York law, listed on the Irish Stock Exchange and admitted to trading on the Irish Stock Exchange’s Global Exchange Market. In another cross-border highlight, the team advised Veolia Environnement on the first issuance of a panda bond by a French issuer. Domestic highlights include advising Europcar Groupe on the issuance of 144A high-yield senior notes. Other clients include Société Générale, Gecina and BNP Paribas. Practice heads Arnaud Duhamel, Hubert Merveilleux du Vignaux and US-qualified Melinda Stege Arsouze are the key names. Laurent Vincent was promoted to counsel. »
Legal 500 EMEA 2018

« Gide Loyrette Nouel A.A.R.P.I. combines ‘a high level of business acumen’ with ‘quick response times’, ‘direct access to partners’ and ‘stable teams’. The team’s strengths lie in derivatives and structured products, flanked by regulatory expertise, but the group also advises on securitisations and has expertise across all asset classes, as well as in repurchasing transactions and securities lending mandates. Paris-based Arnaud Duhamel and counsel Laurent Vincent, and London-based Karine Imbrosciano, who is ‘very client-focused’, jointly head the practice. Duhamel’s skillset in structured products and strategic equity derivatives is noted, along with his strong regional focus on sub-Saharan Africa and other emerging markets. »
Legal 500 EMEA 2018

« Arnaud Duhamel is a well-reputed Equity Capital Markets practitioner, offering further expertise in structured finance and international capital markets, and is dual-qualified in French and UK law. One client was 'delighted with his advice; he gave us his full attention and dealt with a difficult situation delicately'. »
Chambers Global 2017

« The derivatives practice is ‘extremely good, including when it comes down to tight deadlines and execution of complex transactions’; key contacts include ‘dealmaker’ Arnaud Duhamel, who ‘manages to close highly strategic transactions thanks to his very fine risk analysis’, and London-based Karine Imbrosciano, who is ‘definitely one of the leaders in French derivatives’. »
Legal 500 EMEA 2017

« Gide Loyrette Nouel produces ‘excellent and efficient work’ and ‘knows very well the standards on the banks’ side and the needs from the issuers’ side’; it has notable experience in mandates involving the public sector. The practice recently assisted the banking syndicate with Vallourec’s €480m capital increase and advised Veolia Environnement on a €700m OCEANE issuance. Arnaud Duhamel ‘shows real judgement in difficult situations rather than sitting on the fence’ and Melinda Stege Arsouze provides US expertise’. »
Legal 500 EMEA 2017

« Gide Loyrette Nouel is ‘one of the few French firms able to compete with the Anglo-Saxon firms’, for issuer and underwriter representations alike. The practice has ‘deep knowledge of French law’ and is also able to provide US law advice including with regard to private placements and US IPOs. The team recently completed a high volume of work in the life sciences sector, notably including advising DBV Technologies SA on its Nasdaq IPO. The practice also assisted the underwriters regarding Solairedirect’s IPO on Euronext Paris and Rule 144A US offering. The team is ‘highly responsive and efficient’. Key figures in the practice include Arnaud Duhamel and Melinda Arsouze, who are both 'very good advisers'. »
Legal 500 EMEA 2016

« Department head Arnaud Duhamel is a well-known name in the Equity Capital Markets field, and is seen as an experienced partner with a diverse practice. »
Chambers Global 2015

« Arnaud Duhamel works on IPOs, high-yield bond offerings and structured finance, including securitisation. He receives warm praise from clients for his ability to 'be flexible, think outside the box and come up with new ideas'. »
Chambers Global 2014