Core & Main exec withholds 242 shares for taxes

Core & Main executive Carla D. Harper, Senior VP of Human Resources, reported a tax-withholding disposition of 242 shares of Class A Common Stock on August 4, 2026 at $46.32 per share.

Accepted by SEC EDGAR 08/05/2026 - 05:11 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Core & Main executive Carla D. Harper, Senior VP of Human Resources, reported a tax-withholding disposition of 242 shares of Class A Common Stock on August 4, 2026 at $46.32 per share. The shares were withheld to cover taxes on vesting restricted stock units, leaving her with 13,064 directly held shares.

Insider Trade Summary

Tax Withholding: 242 shares

Tax Withholding 1 txn

Insider Harper Carla D

Role Senior VP, Human Resources

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1	242	$46.32	$11K

Holdings After Transaction: Class A Common Stock — 13,064 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld by the Issuer for tax withholding purposes upon the vesting of a portion of restricted stock units granted to the reporting person.

Key Figures

Shares withheld for taxes: 242 shares Tax-withholding price per share: $46.32 per share Shares held after transaction: 13,064 shares

3 metrics

Shares withheld for taxes 242 shares Shares of Class A Common Stock withheld on August 4, 2026 for tax withholding upon RSU vesting

Tax-withholding price per share $46.32 per share Per-share value used for the 242 withheld shares in the tax-withholding disposition

Shares held after transaction 13,064 shares Directly held Core & Main Class A shares by Carla D. Harper following the transaction

Key Terms

restricted stock units, tax withholding, Class A Common Stock

3 terms

restricted stock units financial

"upon the vesting of a portion of restricted stock units granted"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding financial

"shares withheld by the Issuer for tax withholding purposes"

Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.

Class A Common Stock financial

"security_title: Class A Common Stock reported in the transaction"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Core & Main (CNM) report for Carla D. Harper?

Core & Main reported that Senior VP Carla D. Harper had 242 Class A shares withheld at $46.32 per share. The shares covered tax obligations from vesting restricted stock units, rather than representing a discretionary open-market sale.

Was the CNM insider transaction by Carla D. Harper an open-market sale?

No. The 242 shares were withheld for tax purposes upon vesting of restricted stock units. The Form 4 describes the code F transaction as a payment of tax liability by delivering or withholding securities, not a voluntary sale on the market.

How many Core & Main (CNM) shares does Carla D. Harper hold after this transaction?

After the tax-withholding event, Carla D. Harper directly holds 13,064 shares of Core & Main Class A Common Stock. This post-transaction balance is reported in the Form 4 as the total shares following the disposition.

What price per share was used in the CNM tax-withholding transaction?

The tax-withholding disposition for Carla D. Harper used a per-share value of $46.32 for 242 Core & Main Class A shares. This value is reported as the transaction price per share associated with the restricted stock unit vesting.

What triggered the share withholding for Carla D. Harper at Core & Main (CNM)?

The withholding of 242 shares was triggered by the vesting of a portion of restricted stock units granted to Carla D. Harper. The issuer retained these shares to satisfy tax withholding obligations related to that vesting event.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Harper Carla D

(Last) (First) (Middle)

C/O CORE & MAIN, INC.

1830 CRAIG PARK COURT

(Street)

ST. LOUIS MISSOURI 63146

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Core & Main, Inc. [ CNM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior VP, Human Resources

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	08/04/2026		F		242(1)	D	$46.32	13,064	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares withheld by the Issuer for tax withholding purposes upon the vesting of a portion of restricted stock units granted to the reporting person.

Remarks:

	/s/ Jackie Burkhardt, as Attorney-in-Fact for Carla D. Harper	08/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)