Romain Dambre

Romain Dambre


Romain advises public and private companies, as well as financial sponsors and their portfolio companies, on a wide variety of domestic and cross-border transactions, including acquisitions, leveraged buyouts, take-privates, divestitures, carve-outs, joint ventures, equity financings and corporate restructurings.

Romain has extensive experience counseling clients in a variety of sectors, including technology, life sciences, consumer goods, industrials and infrastructure, among others. He also counsels public companies and their boards of directors and special committees on corporate governance, shareholder activism and takeover defense, securities and other general corporate matters.

Romain has advised clients on numerous significant matters, totalling over USD250bn in value.


Representative matters

Celanese in its USB11bn acquisition of DuPont’s Mobility & Materials global business.
EQT Infrastructure in its USD5.3 billion take-private acquisition of Covanta.
Grubhub in its USD7.3 billion sale to Just Eat
GlaxoSmithKline in its USD12.7 billion worldwide consumer health joint venture with Pfizer (previous law firm experience).
Private equity firms, financial sponsors, SPACs and family offices, including Advent, Altaris, Apax, Blackstone, Carlyle, EQT, Greenbriar, MacAndrews & Forbes, Ridgemont Equity Partners, and their portfolio companies, in acquisitions and divestitures. 

Public and private companies in their domestic and cross-border strategic transactions, including: 
Celanese in its $1.15 billion acquisition of ExxonMobil’s Santoprene global business.
Charter Communications in its streaming joint venture with Comcast.
Eli Lilly in its acquisition of Protomer Technologies for a transaction value of over $1.0 billion (previous law firm experience).
Equity One in its $15.6 billion merger of equals with Regency Centers.
Fortive Corporation in its $2 billion acquisition of Accruent.
Huntsman in its proposed $20 billion merger of equals with Clariant.
Infineon Technologies in its $10.1 billion acquisition of Cypress Semiconductor.
Micro Focus in its $8.8 billion acquisition of Hewlett Packard Enterprise’s global software business.
Travelport Worldwide in its $4.4 billion sale to affiliates of Elliott Management and Siris Capital.
WellCare Health Plans in its $17.3 billion sale to Centene.

Published Work

  • “Initial Coin Offerings and U.S. Securities Regulation: Challenges and Perspectives,” 1 Int’l J. Fin. Serv. 9 (2018)
  • Equity Derivatives: French and EU Corporate Law Aspects (Larcier eds., 1st ed. 2016, 527 pp.) (in French)
  • “Hedging by Corporate Executives: Three Regulatory Models,” 1/2 Rev. Trim. Dr. Fin. 59 (2015) (in French)
  • “A Transalpine Look at Equity Derivatives: Convergence and Divergence in Disclosure and Takeover Regulations in the EU,” 3 Rev. Trim. Dr. Fin. 64 (2012) (with Marco Dell’Erba)



Registered Foreign Lawyer, England and Wales, 2024

Admitted to the Bar of New York


Yale Law School LL.M., Editor, Yale Journal on Regulation

Sorbonne Law School Ph.D. summa cum laude

Sorbonne Law School J.D. magna cum laude, Salutatorian

HEC Paris M.Sc., List of Excellence


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.