MARTIN MARIETTA MATERIALS INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Nye C Howard | Chairman, Pres & CEO | Tax Withholding | 298 | $629.49 | $187,588 | 151,876 | Dec 16, 2025 |
| McCunniff Donald A. | EVP and CHRO | Tax Withholding | 50 | $629.49 | $31,475 | 3,473 | Dec 16, 2025 |
| Cardin Robert J | SVP, Controller & CAO | Tax Withholding | 32 | $629.49 | $20,144 | 11,066 | Dec 16, 2025 |
| BAR ROSELYN R | Executive Vice President | Tax Withholding | 66 | $629.49 | $41,546 | 62,594 | Dec 16, 2025 |
| BAR ROSELYN R | Executive Vice President | Tax Withholding | 420 | $615.25 | $258,405 | 63,148 | Dec 2, 2025 |
| Flynn Jason Paul | SVP and CIO | Tax Withholding | 123 | $615.25 | $75,676 | 4,399 | Dec 1, 2025 |
| WAJSGRAS DAVID C | — | Award / Grant | 61 | $623.24 | $38,018 | 4,590 | Nov 28, 2025 |
| Pike Thomas | — | Award / Grant | 51 | $623.24 | $31,785 | 4,544 | Nov 28, 2025 |
| KORALESKI JOHN J | — | Award / Grant | 75 | $623.24 | $46,743 | 8,753 | Nov 28, 2025 |
| WAJSGRAS DAVID C | — | Award / Grant | 61 | $616.40 | $37,600 | 4,529 | Aug 29, 2025 |
| Pike Thomas | — | Award / Grant | 51 | $616.40 | $31,436 | 4,493 | Aug 29, 2025 |
| KORALESKI JOHN J | — | Award / Grant | 76 | $616.40 | $46,846 | 8,678 | Aug 29, 2025 |
| PEREZ LAREE E | — | Sale | 1,038 | $613.32 | $636,626 | 15,417 | Aug 8, 2025 |
| Petro Michael J | SVP and CFO | Award / Grant | 1,822 | — | — | 10,807 | Jul 8, 2025 |
| WAJSGRAS DAVID C | — | Award / Grant | 69 | $547.55 | $37,781 | 4,468 | May 30, 2025 |
| Pike Thomas | — | Award / Grant | 58 | $547.55 | $31,758 | 4,442 | May 30, 2025 |
| KORALESKI JOHN J | — | Award / Grant | 85 | $547.55 | $46,542 | 8,602 | May 30, 2025 |
| Cardin Robert J | SVP, Interim CFO, Ctrl & CAO | Award / Grant | 2,869 | — | — | 11,098 | May 15, 2025 |
| WAJSGRAS DAVID C | — | Award / Grant | 308 | $552.86 | $170,281 | 4,399 | May 15, 2025 |
| SLAGER DONALD W | — | Award / Grant | 308 | $552.86 | $170,281 | 4,751 | May 15, 2025 |
| Pike Thomas | — | Award / Grant | 308 | $552.86 | $170,281 | 4,384 | May 15, 2025 |
| PEREZ LAREE E | — | Award / Grant | 308 | $552.86 | $170,281 | 16,455 | May 15, 2025 |
| Mack Mary T | — | Award / Grant | 308 | $552.86 | $170,281 | 601 | May 15, 2025 |
| KORALESKI JOHN J | — | Award / Grant | 308 | $552.86 | $170,281 | 8,517 | May 15, 2025 |
| Foxx Anthony R | — | Award / Grant | 308 | $552.86 | $170,281 | 2,302 | May 15, 2025 |
| COLE SUE W | — | Award / Grant | 308 | $552.86 | $170,281 | 20,394 | May 15, 2025 |
| Ables Dorothy M | — | Award / Grant | 308 | $552.86 | $170,281 | 3,908 | May 15, 2025 |
| McCunniff Donald A. | EVP and CHRO | Sale | 1,332 | $475.00 | $632,700 | 3,523 | Mar 5, 2025 |
| Petro Michael J | SVP - Strategy and Development | Purchase | 550 | $454.37 | $249,904 | 8,985 | Mar 4, 2025 |
| WAJSGRAS DAVID C | — | Award / Grant | 78 | $483.14 | $37,685 | 4,091 | Feb 28, 2025 |
| Pike Thomas | — | Award / Grant | 65 | $483.14 | $31,404 | 4,076 | Feb 28, 2025 |
| KORALESKI JOHN J | — | Award / Grant | 96 | $483.14 | $46,381 | 8,209 | Feb 28, 2025 |
| Nickolas James AJ | EVP and CFO | Award / Grant | 1,637 | — | — | 27,093 | Feb 24, 2025 |
| Petro Michael J | SVP - Strategy and Development | Tax Withholding | 200 | $490.64 | $98,128 | 8,435 | Feb 21, 2025 |
| Nye C Howard | Chairman, Pres & CEO | Award / Grant | 7,432 | — | — | 154,206 | Feb 21, 2025 |
| McCunniff Donald A. | EVP and CHRO | Award / Grant | 1,543 | — | — | 3,523 | Feb 21, 2025 |
| KOHN BRADLEY D | SVP, General Counsel and Secy | Award / Grant | 981 | — | — | 3,625 | Feb 21, 2025 |
| Cardin Robert J | Sr. VP, Controller and CAO | Tax Withholding | 216 | $490.64 | $105,978 | 8,229 | Feb 21, 2025 |
| Brooks Oliver W | SVP - Enterprise Excellence | Tax Withholding | 188 | $490.64 | $92,240 | 5,178 | Feb 21, 2025 |
| BAR ROSELYN R | Executive Vice President | Award / Grant | 1,637 | — | — | 63,970 | Feb 21, 2025 |
| Petro Michael J | SVP - Strategy and Development | Tax Withholding | 1,211 | $533.99 | $646,662 | 7,902 | Feb 18, 2025 |
| Nye C Howard | Chairman, Pres & CEO | Award / Grant | 23,550 | — | — | 156,147 | Feb 18, 2025 |
| Nickolas James AJ | EVP and CFO | Tax Withholding | 2,106 | $533.99 | $1,124,583 | 25,456 | Feb 18, 2025 |
| Cardin Robert J | Sr. VP, Controller and CAO | Tax Withholding | 1,069 | $533.99 | $570,835 | 7,650 | Feb 18, 2025 |
| Brooks Oliver W | SVP - Enterprise Excellence | Tax Withholding | 134 | $533.99 | $71,555 | 4,622 | Feb 18, 2025 |
| BAR ROSELYN R | Executive Vice President | Tax Withholding | 2,126 | $533.99 | $1,135,263 | 61,595 | Feb 18, 2025 |
| Nye C Howard | Chairman, Pres & CEO | Tax Withholding | 267 | $550.92 | $147,096 | 132,597 | Dec 13, 2024 |
| BAR ROSELYN R | EVP, General Counsel and Secy | Tax Withholding | 65 | $550.92 | $35,810 | 59,359 | Dec 12, 2024 |
| Petro Michael J | SVP - Strategy and Development | Tax Withholding | 93 | $593.22 | $55,169 | 6,659 | Dec 2, 2024 |
| Nye C Howard | Chairman, Pres & CEO | Tax Withholding | 1,776 | $593.22 | $1,053,559 | 132,864 | Dec 2, 2024 |