John J. Koraleski - 27 Feb 2026 Form 4 Insider Report for MARTIN MARIETTA MATERIALS INC (MLM)

Role: Director
Signature: /s/ Sara W. Brown, attorney-in-fact
Issuer symbol: MLM
Transactions as of: 27 Feb 2026
Net transactions value: +$46,683
Form type: 4
Filing time: 02 Mar 2026, 14:42:42 UTC
Previous filing: 01 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KORALESKI JOHN J	Director	4123 PARKLAKE AVENUE, RALEIGH	/s/ Sara W. Brown, attorney-in-fact	02 Mar 2026	0001200010

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MLM	Common Stock	Award	$46,683	+69	+0.79%	$676.57	8,822	27 Feb 2026	Direct	F1
holding	MLM	Common Stock						2,000	27 Feb 2026	SJK HOLDINGS and INVESTMENTS, LLC
holding	MLM	Common Stock						4,900	27 Feb 2026	JJ KORALESKI and SF KORALESKI CO-TTEE KORALESKI LIVING TRUST U/A DTD 01/18/1991

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

Explanation of Responses:

Id	Content
F1	Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

Content

Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.