Form 4 Filing for Mark R. Witkowski

Mark R. Witkowski, Chief Executive Officer of Core & Main, Inc. (CNM), reported a disposition of 19,596 shares of Class A Common Stock on October 16, 2026. The transaction code was "G", indicating a grant, award, or other acquisition or disposition of securities. The reported price per share was $0.00. Following this transaction, Witkowski directly owns 31,523 shares of Class A Common Stock. The shares were transferred to an irrevocable trust, of which Witkowski is neither a trustee nor a beneficiary, as indicated by footnote F1. This filing is a Form 4, which reports changes in beneficial ownership of securities.