X0306 4 2022-04-20 0 0001856525 Core & Main, Inc. CNM 0001733097 Amirthalingam Bhavani C/O CORE & MAIN, INC. 1830 CRAIG PARK COURT ST. LOUIS MO 63146 1 0 0 0 Class A Common Stock 2022-04-20 4 A 0 1198 0.00 A 1198 D Represents restricted stock units granted as director compensation. The restricted stock units will vest upon the date of the Company's 2022 annual shareholders' meeting and be settled in shares of common stock. /s/ Mark Whittenburg, as Attorney-in-Fact for Bhavani Amirthalingam 2022-04-22