Jeffrey D. Giles - 12 Mar 2026 Form 4 Insider Report for Core & Main, Inc. (CNM)

Role: EVP, Corporate Development
Signature: /s/ Mark Whittenburg, as Attorney-in-Fact for Jeffrey D. Giles
Issuer symbol: CNM
Transactions as of: 12 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 13 Mar 2026, 19:24:24 UTC
Previous filing: 28 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Giles Jeffrey D	EVP, Corporate Development	C/O CORE & MAIN, INC., 1830 CRAIG PARK COURT, ST. LOUIS	/s/ Mark Whittenburg, as Attorney-in-Fact for Jeffrey D. Giles	13 Mar 2026	0001866555

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CNM	Class A Common Stock	Award		+3,021	+45%	$0.000000^*	9,681	12 Mar 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CNM	Options (Rights to Buy)	Award		+21,585		$0.000000^*	21,585	12 Mar 2026	Class A Common Stock	21,585	$47.63	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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 March 11, 2027, March 11, 2028 and March 11, 2029, subject to the terms of the associated Participant Restricted Stock Unit Agreement.
F2	The options vest in three equal installments on March 11, 2027, March 11, 2028 and March 11, 2029, subject to the terms of the associated Participant Stock Option Agreement.