Quiet on the insider front: nobody at Martin Marietta Materials Inc bought or sold MLM shares on the open market this past year.
1 investment managers listed MLM in their latest 13F filings (Q2 2026); funds were split between buying and selling. MLM also shows up in congressional disclosures: 14 reported trades from four lawmakers in two years. No open-market insider buying or selling in the last full quarter. Insiders bought in 1 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Aug 11, 2025 | PEREZ LAREE E | Director | Sell | 1,038 | $613.32 | $637K | SEC |
| Mar 6, 2025 | McCunniff Donald A. | Executive Officer | Sell | 1,332 | $475.00 | $633K | SEC |
| Mar 5, 2025 | Petro Michael J | Executive Officer | Buy | 550 | $454.37 | $250K | SEC |
| Mar 15, 2024 | BAR ROSELYN R | Executive Officer | Sell | 10,000 | $603.29 | $6.0M | SEC |
| Mar 6, 2024 | Nye C Howard | CEO | Sell | 5,000 | $604.26 | $3.0M | SEC |
| Mar 6, 2024 | Nye C Howard | CEO | Sell | 15,000 | $604.26 | $9.1M | SEC |
| Feb 20, 2024 | COLE SUE W | Director | Sell | 843 | $541.22 | $456K | SEC |
| Feb 20, 2024 | COLE SUE W | Director | Sell | 881 | $545.64 | $481K | SEC |
| Aug 22, 2023 | LaTorre Craig M | Officer | Sell | 1,934 | $431.68 | $835K | SEC |
| Aug 1, 2023 | LaTorre Craig M | Officer | Sell | 500 | $447.09 | $224K | SEC |
| Filed | Member | Type | Amount | Source |
|---|---|---|---|---|
| Sep 9, 2026 | April McClain Delaney D | Sale | $250,001 - $500,000 | Official filing |
| Sep 9, 2026 | April McClain Delaney D | Purchase | $1,001 - $15,000 | Official filing |
| Aug 3, 2026 | April McClain Delaney D | Purchase | $15,001 - $50,000 | Official filing |
| Aug 3, 2026 | April McClain Delaney D | Purchase | $1,001 - $15,000 | Official filing |
| Aug 3, 2026 | April McClain Delaney D | Purchase | $1,001 - $15,000 | Official filing |
| Jun 5, 2026 | April McClain Delaney D | Purchase | $1,001 - $15,000 | Official filing |
| May 19, 2026 | Josh Gottheimer D | Sale | $15,001 - $50,000 | Official filing |
| Apr 6, 2026 | April McClain Delaney D | Purchase | $1,001 - $15,000 | Official filing |
There were no open-market insider trades in MLM in the last 12 months. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
1 investment managers reported holding MLM in SEC Form 13F filings for Q2 2026.
Yes. Members of Congress reported 14 trades in MLM over the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).