Donald A. McCunniff - 05 Mar 2025 Form 4 Insider Report for MARTIN MARIETTA MATERIALS INC (MLM)

Role: EVP and CHRO
Signature: /s/ Bradley D. Kohn, attorney-in-fact
Issuer symbol: MLM
Transactions as of: 05 Mar 2025
Net transactions value: -$426,799
Form type: 4
Filing time: 06 Mar 2025, 10:06:02 UTC
Previous filing: 25 Feb 2025
Next filing: 17 Dec 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MLM	Common Stock	Options Exercise	$205,901	+1,332	+38%	$154.58	4,855	05 Mar 2025	Direct
transaction	MLM	Common Stock	Sale	$632,700	-1,332	-27%	$475.00	3,523	05 Mar 2025	Direct

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	MLM	Stock Options (Right to Buy)	Options Exercise	$0	-1,332	-100%	$0.000000	0	05 Mar 2025	Common Stock	1,332	$154.58	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Non-qualified stock option award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan. Options become exercisable in four equal annual installments commencing one year from the date of grant.