Compagnie de Saint-Gobain

Transaction in Own Shares • Oct 2, 2023

October 2nd, 2023

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 8, 2023 (13th 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 the 22nd to the 27th of September 2023

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)
2023-09-22	203,697	55.954	11,397,601	AQEU/CCXE/TQEX/XPAR
2023-09-25	279,900	55.933	15,655,759	AQEU/CCXE/TQEX/XPAR
2023-09-26	202,158	55.920	11,304,594	AQEU/CCXE/TQEX/XPAR
2023-09-27	93,751	56.000	5,250,056	AQEU/CCXE/TQEX/XPAR
Total over the period	779,506	55.943	43,608,010