List of insiders holdings for MARTIN MARIETTA MATERIALS INC:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | SOUTHEASTERN ASSET MANAGEMENT INC 10% Owner | 2013-03-26 18:13:13 | 2,262,363 0 | 2,262,363 | Form 13D |
| 2 | NNS Holding Sawiris Nassef Norman Philip 10% Owner | 2009-02-13 17:06:13 | 227,777 0 | 227,777 | Form 13G |
| 3 | Nye C Howard Chairman, Pres & CEO | 2025-02-25 16:24:04 | 152,174 70,400 | 222,574 | Form 4 |
| 4 | BAR ROSELYN R Executive Vice President | 2025-02-25 16:03:00 | 63,568 0 | 63,568 | Form 4 |
| 5 | SIPLING PHILIP J Exec. VP | 2009-12-03 11:22:42 | 60,601 0 | 60,601 | Form 4 |
| 6 | LLOYD ANNE H EVP and CFO | 2017-05-24 15:27:52 | 59,786 0 | 59,786 | Form 4 |
| 7 | SHEPHERD DANIEL G Exec VP | 2011-05-25 09:31:35 | 47,500 0 | 47,500 | Form 4 |
| 8 | STEWART JONATHAN T SVP Human Resources | 2010-12-10 11:56:46 | 40,073 0 | 40,073 | Form 4 |
| 9 | MOE DONALD M Sr. VP | 2007-02-14 15:27:21 | 38,745 0 | 38,745 | Form 4 |
| 10 | HENRY JANICE K Sr. Vice Pres. | 2006-06-01 13:20:03 | 35,839 0 | 35,839 | Form 4 |
| 11 | Nickolas James AJ EVP and CFO | 2025-02-25 16:10:45 | 26,643 0 | 26,643 | Form 4 |
| 12 | COLE SUE W Director | 2025-05-16 15:08:10 | 20,394 4,250 | 24,644 | Form 4 |
| 13 | Vaio Bruce A Executive VP | 2012-12-13 14:46:26 | 22,301 0 | 22,301 | Form 4 |
| 14 | Guzzo Dana F. SVP/Controller/CAO | 2019-02-26 16:19:50 | 22,027 0 | 22,027 | Form 4 |
| 15 | Quillen Michael J Director | 2024-05-10 08:54:53 | 21,306 0 | 21,306 | Form 4 |
| 16 | MENAKER FRANK H JR Director | 2016-03-02 09:47:06 | 20,576 0 | 20,576 | Form 4 |
| 17 | Grant Daniel L. SVP - Strategy and Development | 2021-02-23 19:57:12 | 19,065 0 | 19,065 | Form 4 |
| 18 | MAFFUCCI DAVID G Director | 2018-06-01 11:56:24 | 17,874 0 | 17,874 | Form 4 |
| 19 | MCDONALD WILLIAM E Director | 2017-03-02 12:01:15 | 17,869 0 | 17,869 | Form 4 |
| 20 | REDIKER DENNIS L Director | 2019-03-01 14:12:34 | 17,775 0 | 17,775 | Form 4 |
| 21 | PEREZ LAREE E Director | 2025-05-16 15:21:00 | 16,455 0 | 16,455 | Form 4 |
| 22 | VINROOT RICHARD A Director | 2016-03-02 10:01:04 | 15,955 0 | 15,955 | Form 4 |
| 23 | KORALESKI JOHN J Director | 2025-06-03 09:19:58 | 8,602 6,900 | 15,502 | Form 4 |
| 24 | Mohr John P SVP - CIO | 2023-12-05 16:01:15 | 14,974 0 | 14,974 | Form 4 |
| 25 | REED JAMES M Director | 2005-05-26 12:57:28 | 12,416 0 | 12,416 | Form 4 |
| 26 | WATTERSON DAVID S VP and Chief Info. Officer | 2006-08-08 09:56:46 | 12,218 0 | 12,218 | Form 4 |
| 27 | Cardin Robert J SVP, Interim CFO, Ctrl & CAO | 2025-05-19 11:24:31 | 11,098 0 | 11,098 | Form 4 |
| 28 | Petro Michael J SVP - Strategy and Development | 2025-03-05 09:11:09 | 8,985 0 | 8,985 | Form 4 |
| 29 | LaTorre Craig M Sr. VP, CHRO | 2023-12-05 15:55:39 | 8,634 0 | 8,634 | Form 4 |
| 30 | EASTERLIN DONALD J III Vice President | 2003-12-10 16:35:30 | 5,947 2,223 | 8,170 | Form 4 |
| 31 | BENNETT MARCUS C Director | 2008-05-30 11:48:38 | 6,962 0 | 6,962 | Form 4 |
| 32 | Davis Smith W Director | 2023-03-01 17:19:40 | 5,255 0 | 5,255 | Form 4 |
| 33 | Brooks Oliver W SVP - Enterprise Excellence | 2025-02-25 16:05:05 | 5,178 0 | 5,178 | Form 4 |
| 34 | ZELNAK STEPHEN P JR Director | 2020-07-10 17:13:48 | 4,955 0 | 4,955 | Form 4 |
| 35 | SLAGER DONALD W Director | 2025-05-16 15:25:29 | 4,751 0 | 4,751 | Form 4 |
| 36 | WAJSGRAS DAVID C Director | 2025-06-03 09:26:50 | 4,468 0 | 4,468 | Form 4 |
| 37 | Bennett Kelly Gean SVP, CHRO | 2024-02-27 16:25:49 | 4,454 0 | 4,454 | Form 4 |
| 38 | Pike Thomas Director | 2025-06-03 09:23:58 | 4,442 0 | 4,442 | Form 4 |
| 39 | SANSOM WILLIAM B Director | 2006-07-05 15:39:22 | 2,899 1,210 | 4,109 | Form 4 |
| 40 | Ables Dorothy M Director | 2025-05-16 14:51:24 | 3,908 0 | 3,908 | Form 4 |
| 41 | KOHN BRADLEY D SVP, General Counsel and Secy | 2025-02-25 16:07:21 | 3,625 0 | 3,625 | Form 4 |
| 42 | McCunniff Donald A. EVP and CHRO | 2025-03-06 10:06:02 | 3,523 0 | 3,523 | Form 4 |
| 43 | Foxx Anthony R Director | 2025-05-16 15:14:02 | 2,302 0 | 2,302 | Form 4 |
| 44 | LEONARD BOBBY F Director | 2003-08-20 09:55:40 | 2,000 0 | 2,000 | Form 4 |
| 45 | ADAMSON RICHARD G Director | 2003-08-20 09:34:51 | 2,000 0 | 2,000 | Form 4 |
| 46 | Mack Mary T Director | 2025-05-16 15:18:36 | 601 0 | 601 | Form 4 |
| 47 | SPO ADVISORY CORP SPO ADVISORY PARTNERS LP SF ADVISORY PARTNERS LP SPO PARTNERS II LP SAN FRANCISCO PARTNERS LP SCULLY JOHN H OBERNDORF WILLIAM E MCDERMOTT EDWARD H 10% Owner | 2014-02-14 16:19:45 | 0 0 | 0 | Form 13G |
| 48 | Tesh James M. SVP-Human Resources | 2011-01-28 11:49:26 | 0 0 | 0 | Form 3 |
| 49 | SCULLY JOHN H CRANBERRY LAKE PARTNERS LP 10% Owner | 2010-12-02 19:51:34 | 0 0 | 0 | Form 4 |
| 50 | PHOEBE SNOW FOUNDATION See Footnote 1 | 2009-12-16 20:49:38 | 0 0 | 0 | Form 4 |
| 51 | SPO ADVISORY CORP SPO ADVISORY PARTNERS LP SF ADVISORY PARTNERS LP SPO PARTNERS II LP SAN FRANCISCO PARTNERS II LP SCULLY JOHN H OBERNDORF WILLIAM E PATTERSON WILLIAM J MCDERMOTT EDWARD H 10% Owner | 2014-02-14 16:19:45 | 0 0 | 0 | Form 13G |
| 52 | SPO ADVISORY CORP SF ADVISORY PARTNERS LP SPO ADVISORY PARTNERS LP SAN FRANCISCO PARTNERS II LP SPO PARTNERS II LP PHOEBE SNOW FOUNDATION Elizabeth R. & William J. Patterson Foundation 10% Owner | 2014-02-14 16:19:45 | 0 0 | 0 | Form 13G |