Core & Main director receives stock unit grant

Castellano James G reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Castellano James G reported acquisition or exercise transactions in this Form 4 filing.

Core & Main, Inc. director James G. Castellano received a grant of 2,799 restricted stock units as director compensation. These units will vest upon the earlier of the one-year anniversary of the grant date or the company’s next annual meeting of shareholders to be held in 2027 and will be settled in Class A common stock, contingent on his continued board service. Following this award, he holds 7,437 shares of Class A Common Stock directly. This is a routine equity compensation grant rather than an open-market share purchase or sale.

Insider Trade Summary

Grant/Award: 2,799 shares

Grant/Award 1 txn

Insider Castellano James G

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	2,799	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 7,437 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units granted as director compensation. The restricted stock units will vest upon the earlier to occur of the one year anniversary of the grant date or the Issuer's next annual meeting of shareholders to be held in 2027 and be settled in shares of Class A common stock, subject to the reporting person's continued service as a director of the Issuer.

Key Figures

RSU grant size: 2,799 restricted stock units Shares held after grant: 7,437 shares Grant price per share: $0.0000 per share

3 metrics

RSU grant size 2,799 restricted stock units Director compensation grant on 2026-06-23

Shares held after grant 7,437 shares Class A Common Stock directly held after transaction

Grant price per share $0.0000 per share Reported transaction price for RSU award

Key Terms

restricted stock units, director compensation, Class A common stock, annual meeting of shareholders

4 terms

restricted stock units financial

"Represents restricted stock units granted as director compensation."

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.

director compensation financial

"Represents restricted stock units granted as director compensation."

Class A common stock financial

"be settled in shares of Class A common stock, subject to the reporting person's continued service"

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.

annual meeting of shareholders financial

"the Issuer's next annual meeting of shareholders to be held in 2027"

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

FAQ

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

What did Core & Main (CNM) director James G. Castellano report in this Form 4?

He reported receiving 2,799 restricted stock units as director compensation. These awards are settled in Class A common stock and increase his direct holdings to 7,437 shares after the grant, without any open-market buying or selling activity.

How many Core & Main (CNM) shares did James G. Castellano hold after this transaction?

After the grant, he directly holds 7,437 shares of Class A Common Stock. This figure reflects the addition of 2,799 restricted stock units awarded as director compensation, which will be settled in shares once the vesting conditions are met.

What are the vesting terms of James G. Castellano’s new Core & Main (CNM) restricted stock units?

The 2,799 restricted stock units vest at the earlier of one year from the grant date or Core & Main’s next annual shareholder meeting in 2027. Vesting also requires his continued service as a director through that vesting date for settlement in shares.

Was James G. Castellano’s Core & Main (CNM) Form 4 transaction a stock purchase or sale?

It was not an open-market purchase or sale. The Form 4 reports a grant of 2,799 restricted stock units as director compensation, with no cash price per share and a reported transaction price of 0.0000 per share.

What type of security did James G. Castellano receive from Core & Main (CNM)?

He received restricted stock units tied to Core & Main Class A common stock. These units represent a right to receive shares upon vesting, rather than immediate ownership, and will be settled in Class A common stock once conditions are satisfied.

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

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Accepted by SEC EDGAR 06/24/2026 - 08:02 PM Learn about SEC filing dates

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^*

Castellano James G

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/23/2026

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	06/23/2026		A		2,799(1)	A	$0	7,437	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 restricted stock units granted as director compensation. The restricted stock units will vest upon the earlier to occur of the one year anniversary of the grant date or the Issuer's next annual meeting of shareholders to be held in 2027 and be settled in shares of Class A common stock, subject to the reporting person's continued service as a director of the Issuer.

Remarks:

	/s/ Jackie Burkhardt, as Attorney-in-Fact for James G. Castellano	06/24/2026
	** 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)