Michael J. Petro - 17 Feb 2026 Form 4 Insider Report for MARTIN MARIETTA MATERIALS INC (MLM)

Role: SVP and CFO
Signature: /s/ Sara W. Brown, attorney-in-fact
Issuer symbol: MLM
Transactions as of: 17 Feb 2026
Net transactions value: -$505,230
Form type: 4
Filing time: 19 Feb 2026, 13:51:27 UTC
Previous filing: 09 Jul 2025
Next filing: 24 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Petro Michael J	SVP and CFO	4123 PARKLAKE AVENUE, RALEIGH	/s/ Sara W. Brown, attorney-in-fact	19 Feb 2026	0001878191

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MLM	Common Stock	Award	$0	+1,724	+16%	$0.000000	12,531	17 Feb 2026	Direct	F1
transaction	MLM	Common Stock	Tax liability	$505,230	-758	-6%	$666.53	11,773	17 Feb 2026	Direct

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

Explanation of Responses:

Id	Content
F1	Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 24, 2023. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2023, through December 31, 2025. On February 17, 2026, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2025.

Content

Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 24, 2023. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2023, through December 31, 2025. On February 17, 2026, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2025.