Disclosure of transactions in on shares from September 22nd to September 26th,2025

Core Points - VINCI SA has conducted share buybacks from September 22 to September 26, 2025, under the authorization granted by the General Meeting on April 17, 2025 [2] - A total of 500,000 shares were purchased during this period, with daily transactions of 100,000 shares each day [2] - The daily weighted average prices for the shares purchased ranged from €115.03 to €117.64 [2] Summary by Category Share Buyback Transactions - On September 22, 2025, VINCI purchased 100,000 shares at a weighted average price of €116.89 [2] - On September 23, 2025, another 100,000 shares were bought at €117.64 [2] - On September 24, 2025, the company acquired 100,000 shares at €116.26 [2] - On September 25, 2025, the purchase was made at €115.03 for 100,000 shares [2] - On September 26, 2025, the final 100,000 shares were bought at €116.51 [2] Regulatory Compliance - The transactions were conducted in accordance with Regulation (EU) No 596/2014 regarding market abuse [3] - Detailed information about these transactions is available on the VINCI website [3]