MARTIN MARIETTA MATERIALS INC 4

SVP and CFO Michael J. Petro received an award of 9,331 restricted stock units of Martin Marietta Materials, Inc. common stock, bringing his holdings to 24,321.6026 shares.

On September 1, 2026, Martin Marietta Materials, Inc. SVP and CFO Michael J. Petro received a grant of 9,331 restricted stock units of common stock under the company’s Amended and Restated Stock-Based Award Plan, with the award vesting in three equal installments on the sixth, seventh, and eighth anniversaries of the grant date, subject to continued employment and other conditions. The RSU award, with an implied grant-date value of approximately $4.8 million based on the recent share price of about $517, increased his direct beneficial ownership to 24,321.6026 shares of common stock. This transaction reflects routine long-term equity compensation rather than an open-market purchase or sale.

Filing Facts

CIK

916076

Ticker

MLM

Form

4

Source Type

sec

Accession

0000916076-26-000088

Alert Tier

6