Martin Marietta Materials (MLM)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: MARTIN MARIETTA MATERIALS INC (MLM) CIK: 0000916076 --- Reporting Owner --- Name: Petro Michael J CIK: 0001878191 Role: Officer (SVP and CFO) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-01 | Code: A (Grant or award) Shares: +9,331 | Price: $0.00 Shares Owned After: 24,321.6026 | Ownership: D (Direct) Footnotes: [F1] Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eight anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement. --- Footnotes (Complete Index) --- F1: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eight anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement. --- Signature --- /s/ /s/ Sara W. Brown, attorney-in-fact (2026-09-02)