Compagnie de Saint-Gobain

Transaction in Own Shares • Sep 1, 2021

September 1st, 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 26th to the 31st 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)
2021-08-26	2,530	61.979	156,807	CEUX/TQEX/XPAR
2021-08-30	94,426	61.976	5,852,174	CEUX/TQEX/XPAR
2021-08-31	137,896	61.545	8,486,796	CEUX/TQEX/XPAR
Total over the period	234,852	61.723	14,495,777