Compagnie de Saint-Gobain

Transaction in Own Shares • Nov 2, 2021

November 2nd, 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 27th of October,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)
2021-10-26	4,431	59.978	265,761	XPAR
2021-10-27	99,384	59.957	5,958,806	XPAR
Total over the period	103,815	59.958	6,224,567