Martin Marietta Materials Inc
A building-materials maker whose crushed stone, sand, gravel, and cement go into highways, homes, and airports across the U.S., Canada, and the Bahamas. Its name traces to a 1961 merger between aerospace pioneer Glenn L. Martin and the American-Marietta Corporation, while its quarries trace back to a 1939 stone company founded by two brothers in Raleigh, North Carolina. The company was spun off in the 1990s from the aerospace giant that later became Lockheed Martin.
Granted 108.2K · Sold 20.0K
Granted 14.2K · Sold 10.0K
Granted 12.0K
Granted 601 · Sold 1.7K
Granted 105
Granted 914 · Sold 1.0K
Granted 1.5K
Granted 12.3K · Bought 550
Granted 8.1K
Granted 10.8K
Granted 7.1K · Sold 1.3K
Granted 1.4K
Granted 1.9K
Granted 914
Granted 1.7K
Granted 1.6K
Granted 1.3K
Granted 914
Granted 981
Granted 914
Granted 914
Granted 374
Granted 337
Granted 313
Granted 23.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Nye C HowardChairman, Pres & CEO, Director · 22 transactions | +19.7% | 246.4K | 108.2K | — | 20.0K |
| Bar Roselyn RExecutive Vice President · 18 transactions | -5% | 62.6K | 14.2K | — | 10.0K |
| Nickolas James AJEVP and CFO · 8 transactions | +32.6% | 26.6Kas of Feb 2025 | 12.0K | — | — |
| Cole Sue WDirector · 4 transactions | -4.4% | 24.6Kas of May 2025 | 601 | — | 1.7K |
| Quillen Michael JDirector · 4 transactions | -6.8% | 21.3Kas of May 2024 | 105 | — | — |
| Perez Laree EDirector · 4 transactions | -0.8% | 15.7K | 914 | — | 1.0K |
| Koraleski John JDirector · 13 transactions | +10.7% | 15.7K | 1.5K | — | — |
| Petro Michael JSVP and CFO · 16 transactions | +161.7% | 15.4K | 12.3K | 550 | — |
| Mohr John PSVP - CIO · 1 transaction | -1.2% | 15.0Kas of Dec 2023 | — | — | — |
| Samborski Christopher WilliamEVP, COO · 1 transaction | — | 13.7K | 8.1K | — | — |
| Cardin Robert JSVP, Controller & CAO · 16 transactions | +115% | 12.5K | 10.8K | — | — |
| LaTorre Craig MSr. VP, CHRO · 1 transaction | -2.6% | 8.6Kas of Dec 2023 | — | — | — |
| McCunniff Donald A.EVP and CHRO · 7 transactions | -53% | 7.5K | 7.1K | — | 1.3K |
| Flynn Jason PaulSVP and CIO · 7 transactions | — | 5.5K | 1.4K | — | — |
| Brooks Oliver WSVP - Enterprise Excellence · 7 transactions | +33.8% | 5.2Kas of Feb 2025 | 1.9K | — | — |
| Slager Donald WDirector · 3 transactions | +22% | 5.1K | 914 | — | — |
| Wajsgras David CDirector · 15 transactions | +52.5% | 5.0K | 1.7K | — | — |
| Pike ThomasDirector · 15 transactions | +47.4% | 5.0K | 1.6K | — | — |
| Bennett Kelly GeanSVP, CHRO · 5 transactions | +25.5% | 4.5Kas of Feb 2024 | 1.3K | — | — |
| Ables Dorothy MDirector · 3 transactions | +27.6% | 4.2K | 914 | — | — |
| Kohn Bradley DSVP, General Counsel and Secy · 1 transaction | — | 2.6Kas of Feb 2025 | 981 | — | — |
| Foxx Anthony RDirector · 3 transactions | +53.7% | 2.6K | 914 | — | — |
| Mack Mary TDirector · 3 transactions | — | 914 | 914 | — | — |
| Lyons Martin JDirector · 2 transactions | — | 374 | 374 | — | — |
| Niemann PhilippDirector · 1 transaction | — | 337 | 337 | — | — |
| Delly Gayla JDirector · 1 transaction | — | 0 | 313 | — | — |
| Schoen George FrederickEVP, GC and Corp. Secretary · 1 transaction | — | 0 | 23.7K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -33.5K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.