MLM executive granted 658-share stock award

Cardin Robert J reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 02/24/2026 - 02:57 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Cardin Robert J reported acquisition or exercise transactions in this Form 4 filing.

Martin Marietta Materials senior vice president, controller and chief accounting officer Robert J. Cardin received an equity award of 658 shares of common stock in the form of restricted stock units. The award was granted at no cash cost to him and will vest in equal installments over three years from the grant date, encouraging longer-term alignment with the company’s performance.

Insider Trade Summary

Grant/Award: 658 shares

Grant/Award 1 txn

Insider Cardin Robert J

Role SVP, Controller & CAO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	658	$0.00	$0.00

Holdings After Transaction: Common Stock — 12,771 shares (Direct)

Footnotes (1)

1. F1. Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

FAQ

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

What insider transaction did MLM executive Robert J. Cardin report on this Form 4?

Robert J. Cardin reported receiving an equity award of 658 shares of Martin Marietta Materials common stock. The award is structured as restricted stock units and was granted without a cash purchase, reflecting stock-based executive compensation rather than an open-market transaction.

Was the Martin Marietta (MLM) Form 4 transaction a stock purchase or a grant?

The Form 4 shows a grant, not a purchase, of 658 shares to Robert J. Cardin. It is classified as a grant, award, or other acquisition, meaning the shares were awarded as compensation instead of being bought in the market.

How many MLM shares does Robert J. Cardin hold after this reported award?

After the reported award of 658 shares, Robert J. Cardin holds a total of 12,771 Martin Marietta Materials common shares directly. This total reflects his beneficial ownership immediately following the grant reported in the Form 4 filing.

How does the restricted stock unit award for MLM’s Robert J. Cardin vest over time?

The restricted stock unit award granted to Robert J. Cardin vests pro rata in equal installments over three years from the grant date. This structure spreads the delivery of shares over multiple years, tying the value he receives to continued service with Martin Marietta Materials.

Did Robert J. Cardin pay a price per share for the MLM restricted stock award?

No, Robert J. Cardin did not pay a purchase price for the 658-share award, which is recorded at a transaction price of $0.00 per share. The award reflects stock-based compensation granted under Martin Marietta Materials’ Amended and Restated Stock-Based Award Plan.

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^*

Cardin Robert J

(Last) (First) (Middle)

4123 PARKLAKE AVENUE

(Street)

RALEIGH NC 27612

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MARTIN MARIETTA MATERIALS INC [ MLM ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Controller & CAO

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

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

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

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

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
Common Stock	02/20/2026		A		658(1)	A	$0	12,771	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. Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

	/s/ Sara W. Brown, attorney-in-fact	02/24/2026
	** 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.