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Lawyer profile

Olivier Plessis

Clifford Chance
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Firm
Clifford Chance
Practice
Finance and Capital Markets, securities laws, U.S. securities
Office
London, Paris
Active in the record
2020 to 2026

Deal experience

Deal types
Capital Markets & IPODebt Capital Markets
Sectors
EnergyFinancial ServicesHealthcare & Life SciencesIndustrials & ManufacturingMining & MetalsPublic SectorReal EstateTechnologyTelecoms & Media
Jurisdictions
BelgiumBrazilDenmarkFranceGabonGermanyItalyLuxembourgMoroccoNetherlandsSwedenTurkeyUnited KingdomUnited States

Recent deals

27 announced deals in the record
Clifford Chance advises on approximately US$1.08 billion notes issuance by DC 1 and PAR-DOM, subsidiaries of Casa dos Ventos S.A. 17 Jun 2026
Capital Markets & IPO Energy Clifford Chance USD 1.08bn Finance and Capital Markets Paris
Clifford Chance advises on Sanofi’s successful SEC-registered USD 3 billion bond issuance across five tranches of floating and fixed rate notes 4 Nov 2025
Capital Markets & IPO Financial Services Clifford Chance USD 3bn Lead London
Clifford Chance advises underwriters on ONWARD Medical’s €50 million capital increase 29 Oct 2025
Capital Markets & IPO Healthcare & Life Sciences Clifford Chance EUR 50m Lead
Global law firm Clifford Chance has advised Banque Ouest Africaine de Développement (BOAD) on its €1 billion Rule 144A/Reg S 6.250% Notes due 2040 14 Oct 2025
Debt Capital Markets Financial Services Clifford Chance EUR 1bn US capital markets
Clifford Chance advises the underwriters on Avantium’s €84.8 million equity raise 6 Oct 2025
Capital Markets & IPO Clifford Chance EUR 84.8m US securities laws Paris
Clifford Chance advises the underwriters on Avantium’s capital raise as part of a €46 million financing package 11 Dec 2024
Capital Markets & IPO Clifford Chance EUR 11.2m US securities laws Paris
Clifford Chance advises on the successful consent solicitation of Orange in relation to certain outstanding SEC-registered notes and its delisting and deregistration in the US 24 Oct 2024
Debt Capital Markets Telecoms & Media Clifford Chance Paris
Clifford Chance advises the Joint Bookrunners on TSKB’s successful offering of 144A/Reg S Senior Notes 24 Oct 2024
Capital Markets & IPO Financial Services Clifford Chance USD 350m Lead Paris
Clifford Chance advises the underwriters on CTP N.V.’s €300 million equity capital raising 28 Sept 2024
Capital Markets & IPO Real Estate Clifford Chance EUR 300m Paris
Clifford Chance advises the underwriters on Mobilux’s first high yield offering since the business combination of BUT and Conforama 3 Jul 2024
Debt Capital Markets Clifford Chance EUR 250m
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