X0306 4 2022-06-01 0 0001782754 AZEK Co Inc. AZEK 0001862180 Walbridge Morgan 1330 WEST FULTON MARKET STREET SUITE 350 CHICAGO IL 60607 0 1 0 0 Chief Legal Officer Class A Common Stock 2022-06-01 4 A 0 3629 0.00 A 7476 D Non-qualified stock options (right-to-buy) 20.67 2022-06-01 4 A 0 8466 0.00 A 2032-06-01 Class A Common Stock 8466 8466 D Consists of restricted stock units (RSU). RSUs will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to continued service through the applicable vesting date. Non-qualified stock options vest in three equal annual installments beginning on the first anniversary of the grant date, subject to continued service through the applicable vesting date. /s/ Morgan Walbridge 2022-06-02