Compagnie de Saint-Gobain

Transaction in Own Shares • Jun 2, 2025

June 2, 2025

Reporting on share buyback transactions carried out in accordance with Article 5 §2 of Regulation (EU) No 596/2014 of April 16, 2014 on market abuse

Share buyback program authorized by the Annual General Meeting of June 6, 2024 (19th resolution)

In accordance with applicable regulations, Compagnie de Saint-Gobain announces having carried out the following share buyback transactions in accordance with Article 5 §2 of Regulation (EU) No 596/2014 from May 22 to May 23, 2025

Issuer: Compagnie de Saint-Gobain

Security type: SHARES - ISIN Code : FR0000125007

Transaction date	Total daily volume (number of shares bought back)	Daily weighted average purchase price	Amount (in euros)	Market (MIC Code)
2025-05-22	1,000	95.980	95,980	XPAR
2025-05-23	182,246	96.010	17,497,347	XPAR/CEUX/TQEX/AQEU
Total over the period	183,246	96.009	17,593,327