Michael J. Petro - Feb 21, 2023 Form 4 Insider Report for MARTIN MARIETTA MATERIALS INC (MLM)

Role: SVP - Strategy and Development
Signature: /s/ Roselyn R. Bar, attorney-in-fact
Stock symbol: MLM
Transactions as of: Feb 21, 2023
Transactions value $: -$61,509
Form type: 4
Date filed: 2/22/2023, 03:49 PM
Previous filing: Feb 21, 2023
Next filing: Feb 28, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MLM	Common Stock	Award	$0	+209	+4.03%	$0.00	5.39K	Feb 21, 2023	Direct	F1
transaction	MLM	Common Stock	Tax liability	-$61.5K	-171	-3.17%	$359.70	5.22K	Feb 21, 2023	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 19, 2020. 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, 2020 through December 31, 2022. On February 21, 2023, 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, 2022.

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 19, 2020. 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, 2020 through December 31, 2022. On February 21, 2023, 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, 2022.