Mark R. Witkowski - 11 Mar 2026 Form 4 Insider Report for Core & Main, Inc. (CNM)

Role
Chief Executive Officer, Director
Signature
/s/ Mark Whittenburg, as Attorney-in-Fact for Mark R. Witkowski
Issuer symbol
CNM
Transactions as of
11 Mar 2026
Net transactions value
$0
Form type
4
Filing time
13 Mar 2026, 19:24:06 UTC
Previous filing
11 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Witkowski Mark R Chief Executive Officer, Director C/O CORE & MAIN, INC., 1830 CRAIG PARK COURT, ST. LOUIS /s/ Mark Whittenburg, as Attorney-in-Fact for Mark R. Witkowski 13 Mar 2026 0001866738

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CNM Class A Common Stock Tax liability -1,685 -4.9% $49.16* 32,747 11 Mar 2026 Direct F1
transaction CNM Class A Common Stock Award +18,372 +56% $0.000000* 51,119 12 Mar 2026 Direct F2

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 +131,382 $0.000000* 131,382 12 Mar 2026 Class A Common Stock 131,382 $47.63 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares withheld by the Issuer for tax withholding purposes upon the vesting of a portion of restricted stock units ("RSUs") granted to the reporting person.
F2 Represents 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.
F3 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.