Compagnie de Saint-Gobain

Transaction in Own Shares • Oct 9, 2023

October 9th, 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 2nd to the 4th of October 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)
2023-10-02	455,395	54.866	24,985,565	AQEU/CCXE/TQEX/XPAR
2023-10-03	367,905	54.185	19,934,822	AQEU/CCXE/TQEX/XPAR
2023-10-04	259,235	54.371	14,094,866	AQEU/CCXE/TQEX/XPAR
Total over the period	1,082,535	54.516	59,015,254