# Martin Marietta Materials Inc (MLM) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/mlm

> 6 non-derivative transactions: 0 purchases, 0 sales. CIK 916076.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-01 | Petro Michael J | Officer | A | 9331.0 | 0.0 | 24321.6 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000088/0000916076-26-000088-index.htm |
| 2026-08-31 | LYONS MARTIN J | Director | A | 68.0 | 518.7 | 442.0 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000082/0000916076-26-000082-index.htm |
| 2026-08-31 | Pike Thomas | Director | A | 66.0 | 518.7 | 5029.0 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000084/0000916076-26-000084-index.htm |
| 2026-08-31 | WAJSGRAS DAVID C | Director | A | 78.0 | 518.7 | 5106.0 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000086/0000916076-26-000086-index.htm |
| 2026-08-21 | Niemann Philipp | Director | A | 337.0 | 0.0 | 337.0 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000080/0000916076-26-000080-index.htm |
| 2026-08-03 | Petro Michael J | Officer | F | 368.0 | 542.27 | 14990.6 | https://www.sec.gov/Archives/edgar/data/916076/000091607626000077/0000916076-26-000077-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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