X0508 4 2026-01-26 0 0001856525 Core & Main, Inc. CNM 0001866555 Giles Jeffrey D C/O CORE & MAIN, INC. 1830 CRAIG PARK COURT ST. LOUIS MO 63146 0 1 0 0 EVP, Corporate Development 0 Class A Common Stock 2026-01-26 4 A 0 4377 0 A 6660 D Options (Rights to Buy) 57.14 2026-01-26 4 A 0 10617 0 A 2036-01-26 Class A Common Stock 10617 10617 D Represents restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of Class A common stock of the Issuer. The RSUs vest in three equal annual installments on January 26, 2027, January 26, 2028 and January 26, 2029, subject to the terms of the associated Participant Restricted Stock Unit Agreement. The options vest in three equal installments on January 26, 2027, January 26, 2028 and January 26, 2029, subject to the terms of the associated Participant Stock Option Agreement. /s/ Mark Whittenburg, as Attorney-in-Fact for Jeffrey D. Giles 2026-01-28