Compagnie de Saint-Gobain

Transaction in Own Shares • Sep 1, 2021

August 25th, 2021

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 3, 2021 (17th 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 19th to the 24th of August 2021

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)
2021-08-19	176,414	61.722	10,888,607	CEUX/TQEX/XPAR
2021-08-20	242,194	61.582	14,914,694	CEUX/TQEX/XPAR
2021-08-24	9,154	61.991	567,464	CEUX/TQEX/XPAR
Total over the period	427,762	61.648	26,370,765