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Guillaume De Sampigny

Practice Areas


950 Third Avenue, 19th Floor
New York, NY 10022

Office: +1 (212) 530-2230
Fax: +1 (212) 202-6380


Mr. de Sampigny is a partner in the New York office; he is a member of our Asia practice.

Mr. de Sampigny focuses his practice on securities law. His experience includes representation of issuers, underwriters or placement agents in connection with both public and private offerings of equity and debt securities in the U.S., including IPOs, follow-ons; registered directs; PIPEs; CMPOs; SPACs or business combinations.

Prior to joining HTFL, Mr. de Sampigny worked as an associate in several law firms in New York, London and Paris. Mr. de Sampigny also worked in-house for start-up companies.


  • Widener University School of Law, LL.M
  • Paris X Nanterre, Maîtrise Droit des Affaires / DEJA

Bar Admissions

  • New York
  • Paris

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