MLM Filing
4Filing Date: Aug 4, 2026
MARTIN MARIETTA MATERIALS INC (MLM) · Insider Trading (Form 4) SEC Filing
Statement of Changes in Beneficial Ownership
descriptionView SEC Filing
ACC: 0000916076-26-000077open_in_new
Total Value$199.6K
Trades1
Insiders1
Transaction Details
Petro Michael J
SVP and CFO·Direct
Tax W/H · Dispose
Common Stock
Shares-368
Price$542.27
Total Value$199.6K
Shares Owned After14.99K
Transaction DateAug 3, 2026
Post-Transaction Holdings
Petro Michael J
| Security | Shares | Change |
|---|---|---|
| Common Stock | 14.99K | -368 (-2.40%) |
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-03
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: 2026-08-03 | Code: F (Payment of exercise/tax)
Shares: -368 | Price: $542.27
Total Value: $199,555.36
Shares Owned After: 14,990.6026 | Ownership: D (Direct)
--- Signature ---
/s/ /s/ Sara W. Brown, attorney-in-fact (2026-08-04)