Saint-Gobain // Universal Registration Document 2021

Corporate governance Company stock traded by corporate officers

Company stock traded by corporate officers 3. Transactions by corporate officers involving Compagnie de Saint-Gobain shares exceeding an aggregate amount of €20,000 reported to the French Financial Markets Authority ( Autorité des marchés financiers ) in 2021 pursuant to Article L.621-18-2 of the French Financial and Monetary Code were the following:

Securities

Type Transaction date

Unit price Total amount

Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan)

Disposal

March 16, 2021 March 16, 2021

€48.33 €27.71

256,170 228,192

Exercise of stock options

Subscription

Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan)

Subscription Subscription

March 17, 2021

€48.01

€6,514

Exercise of stock options

May 4, 2021

€38.80 €620,800

Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Units of the Saint-Gobain France FCPE (Saint-Gobain Group Savings Plan) Exercise of stock options

Disposal

May 5, 2021

€53.27

€715,166

Pierre-André de Chalendar Chairman of the Board of Directors

Subscription

May 6, 2021

€55.08

€29,140

Subscription Subscription

May 11, 2021

€35.81 €38.80

€353,544 €522,442

August 2, 2021

5

Disposal

August 4, 2021

€61.50 €590,660

Subscription

August 5, 2021

€63.42

€24,722

Sibylle Daunis-Opfermann Director representing employee shareholders

Disposal

March 30, 2021

€50.45

€20,407

Disposal

August 4, 2021

€61.50

€123,320

SAINT-GOBAIN UNIVERSAL REGISTRATION DOCUMENT 2021 221