Description of the 2026-2027 treasury share buy-back programme submitted by the Board of Directors for approval to the Combined Shareholders’ General Meeting of 14 April 2026

French public limited company (société anonyme) with share capital of €1,455,643,262.50Registered office: 1973 boulevard de la Défense, F-92000 Nanterre552 037 806 RCS Nanterrewww.vinci.com_____________________________________________________ Description of the 2026-2027 treasury share buy-back programmesubmitted by the Board of Directorsfor approval to the Combined Shareholders’ General Meeting of 14 April 2026 _________________________________________________________________________ I - Summary The shares ...