Martin Marietta Materials Inc (MLM) · Insider trading
What Martin Marietta Materials's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$0
0 insiders
Net, 12 months
$0
bought less sold
Latest filing
2026-09-02
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Perez Laree eDirector | – | $636,626 | 1 | 2025-08-08 | 15,417 |
| McCunniff Donald A.EVP and CHRO | – | $632,700 | 1 | 2025-03-05 | 3,523 |
| Petro Michael JSVP - Strategy and Development | $249,904 | – | 1 | 2025-03-04 | 8,985 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-08-08 | Perez Laree eDirector | Sale | 1,038 | 613.32 | $636,626 | 15,417 | Form 4 |
| 2025-03-05 | McCunniff Donald A.EVP and CHRO | Sale | 1,332 | 475.00 | $632,700 | 3,523 | Form 4 |
| 2025-03-04 | Petro Michael JSVP - Strategy and Development | Buy | 550 | 454.37 | $249,904 | 8,985 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
78 × grant or award37 × shares withheld for tax2 × gift1 × option exercise
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-01 | Petro Michael JSVP and CFO | Grant or award A | +9,331 | – | 24,322 | Form 4 |
| 2026-08-31 | Lyons Martin JDirector | Grant or award A | +68 | 518.70 | 442 | Form 4 |
| 2026-08-31 | Pike ThomasDirector | Grant or award A | +66 | 518.70 | 5,029 | Form 4 |
| 2026-08-31 | Wajsgras David CDirector | Grant or award A | +78 | 518.70 | 5,106 | Form 4 |
| 2026-08-21 | Niemann PhilippDirector | Grant or award A | +337 | – | 337 | Form 4 |
| 2026-08-03 | Petro Michael JSVP and CFO | Shares withheld for tax F | −368 | 542.27 | 14,991 | Form 4 |
| 2026-05-29 | Lyons Martin JDirector | Grant or award A | +61 | 581.64 | 374 | Form 4 |
| 2026-05-29 | Pike ThomasDirector | Grant or award A | +59 | 581.64 | 4,963 | Form 4 |
| 2026-05-29 | Wajsgras David CDirector | Grant or award A | +69 | 581.64 | 5,028 | Form 4 |
| 2026-05-14 | Ables Dorothy MDirector | Grant or award A | +313 | – | 4,221 | Form 4 |
| 2026-05-14 | Delly Gayla JDirector | Grant or award A | +313 | – | 313 | Form 4 |
| 2026-05-14 | Foxx Anthony RDirector | Grant or award A | +313 | – | 2,615 | Form 4 |
| 2026-05-14 | Lyons Martin JDirector | Grant or award A | +313 | – | 313 | Form 4 |
| 2026-05-14 | Mack Mary TDirector | Grant or award A | +313 | – | 914 | Form 4 |
| 2026-05-14 | Perez Laree eDirector | Grant or award A | +313 | – | 15,730 | Form 4 |
| 2026-05-14 | Pike ThomasDirector | Grant or award A | +313 | – | 4,904 | Form 4 |
| 2026-05-14 | Slager Donald WDirector | Grant or award A | +313 | – | 5,064 | Form 4 |
| 2026-05-14 | Wajsgras David CDirector | Grant or award A | +313 | – | 4,959 | Form 4 |
| 2026-05-01 | Samborski Christopher WilliamEVP, COO | Grant or award A | +8,101 | – | 21,762 | Form 4 |
| 2026-03-01 | McCunniff Donald A.EVP and CHRO | Grant or award A | +2,960 | – | 7,518 | Form 4 |
| 2026-03-01 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +5,919 | – | 176,038 | Form 4 |
| 2026-03-01 | Petro Michael JSVP and CFO | Grant or award A | +2,960 | – | 15,359 | Form 4 |
| 2026-03-01 | Schoen George FrederickEVP, GC and Corp. Secretary | Grant or award A | +23,673 | – | 23,673 | Form 4 |
| 2026-02-27 | Koraleski John JDirector | Grant or award A | +69 | 676.57 | 8,822 | Form 4 |
| 2026-02-27 | Pike ThomasDirector | Grant or award A | +47 | 676.57 | 4,591 | Form 4 |
| 2026-02-27 | Wajsgras David CDirector | Grant or award A | +56 | 676.57 | 4,646 | Form 4 |
| 2026-02-24 | Cardin Robert JSVP, Controller & CAO | Shares withheld for tax F | −103 | 696.85 | 12,459 | Form 4 |
| 2026-02-24 | Flynn Jason PaulSVP and CIO | Shares withheld for tax F | −30 | 696.85 | 5,494 | Form 4 |
| 2026-02-24 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −1,221 | 696.85 | 170,119 | Form 4 |
| 2026-02-24 | Petro Michael JSVP and CFO | Shares withheld for tax F | −94 | 696.85 | 12,399 | Form 4 |
| 2026-02-23 | Cardin Robert JSVP, Controller & CAO | Shares withheld for tax F | −209 | 683.60 | 12,562 | Form 4 |
| 2026-02-23 | Flynn Jason PaulSVP and CIO | Shares withheld for tax F | −177 | 683.60 | 5,524 | Form 4 |
| 2026-02-23 | McCunniff Donald A.EVP and CHRO | Shares withheld for tax F | −192 | 683.60 | 4,558 | Form 4 |
| 2026-02-23 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −1,805 | 683.60 | 171,340 | Form 4 |
| 2026-02-23 | Petro Michael JSVP and CFO | Shares withheld for tax F | −211 | 683.60 | 12,493 | Form 4 |
| 2026-02-20 | Cardin Robert JSVP, Controller & CAO | Grant or award A | +658 | – | 12,771 | Form 4 |
| 2026-02-20 | Flynn Jason PaulSVP and CIO | Grant or award A | +592 | 548.75 | 5,106 | Form 4 |
| 2026-02-20 | Flynn Jason PaulSVP and CIO | Grant or award A | +595 | – | 5,701 | Form 4 |
| 2026-02-20 | McCunniff Donald A.EVP and CHRO | Grant or award A | +1,277 | – | 4,750 | Form 4 |
| 2026-02-20 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +2,216 | 548.75 | 166,740 | Form 4 |
| 2026-02-20 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +6,405 | – | 173,145 | Form 4 |
| 2026-02-20 | Petro Michael JSVP and CFO | Grant or award A | +931 | – | 12,704 | Form 4 |
| 2026-02-17 | Cardin Robert JSVP, Controller & CAO | Grant or award A | +1,869 | – | 12,935 | Form 4 |
| 2026-02-17 | Cardin Robert JSVP, Controller & CAO | Shares withheld for tax F | −822 | 666.53 | 12,113 | Form 4 |
| 2026-02-17 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +22,365 | – | 174,241 | Form 4 |
| 2026-02-17 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −9,717 | 666.53 | 164,524 | Form 4 |
| 2026-02-17 | Flynn Jason PaulSVP and CIO | Grant or award A | +222 | – | 4,621 | Form 4 |
| 2026-02-17 | Flynn Jason PaulSVP and CIO | Shares withheld for tax F | −107 | 666.53 | 4,514 | Form 4 |
| 2026-02-17 | Petro Michael JSVP and CFO | Grant or award A | +1,724 | – | 12,531 | Form 4 |
| 2026-02-17 | Petro Michael JSVP and CFO | Shares withheld for tax F | −758 | 666.53 | 11,773 | Form 4 |
| 2025-12-16 | Bar Roselyn RExecutive Vice President | Shares withheld for tax F | −66 | 629.49 | 62,594 | Form 4 |
| 2025-12-16 | Cardin Robert JSVP, Controller & CAO | Shares withheld for tax F | −32 | 629.49 | 11,066 | Form 4 |
| 2025-12-16 | McCunniff Donald A.EVP and CHRO | Shares withheld for tax F | −50 | 629.49 | 3,473 | Form 4 |
| 2025-12-16 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −298 | 629.49 | 151,876 | Form 4 |
| 2025-12-02 | Bar Roselyn RExecutive Vice President | Gift G | −488 | – | 62,660 | Form 4 |
| 2025-12-01 | Bar Roselyn RExecutive Vice President | Shares withheld for tax F | −420 | 615.25 | 63,148 | Form 4 |
| 2025-12-01 | Flynn Jason PaulSVP and CIO | Shares withheld for tax F | −123 | 615.25 | 4,399 | Form 4 |
| 2025-11-28 | Koraleski John JDirector | Grant or award A | +75 | 623.24 | 8,753 | Form 4 |
| 2025-11-28 | Pike ThomasDirector | Grant or award A | +51 | 623.24 | 4,544 | Form 4 |
| 2025-11-28 | Wajsgras David CDirector | Grant or award A | +61 | 623.24 | 4,590 | Form 4 |
| 2025-08-29 | Koraleski John JDirector | Grant or award A | +76 | 616.40 | 8,678 | Form 4 |
| 2025-08-29 | Pike ThomasDirector | Grant or award A | +51 | 616.40 | 4,493 | Form 4 |
| 2025-08-29 | Wajsgras David CDirector | Grant or award A | +61 | 616.40 | 4,529 | Form 4 |
| 2025-07-08 | Petro Michael JSVP and CFO | Grant or award A | +1,822 | – | 10,807 | Form 4 |
| 2025-05-30 | Koraleski John JDirector | Grant or award A | +85 | 547.55 | 8,602 | Form 4 |
| 2025-05-30 | Pike ThomasDirector | Grant or award A | +58 | 547.55 | 4,442 | Form 4 |
| 2025-05-30 | Wajsgras David CDirector | Grant or award A | +69 | 547.55 | 4,468 | Form 4 |
| 2025-05-15 | Cardin Robert JSVP, Interim CFO, Ctrl & CAO | Grant or award A | +2,869 | – | 11,098 | Form 4 |
| 2025-05-15 | Ables Dorothy MDirector | Grant or award A | +308 | 552.86 | 3,908 | Form 4 |
| 2025-05-15 | Cole Sue WDirector | Grant or award A | +308 | 552.86 | 20,394 | Form 4 |
| 2025-05-15 | Foxx Anthony RDirector | Grant or award A | +308 | 552.86 | 2,302 | Form 4 |
| 2025-05-15 | Koraleski John JDirector | Grant or award A | +308 | 552.86 | 8,517 | Form 4 |
| 2025-05-15 | Mack Mary TDirector | Grant or award A | +308 | 552.86 | 601 | Form 4 |
| 2025-05-15 | Perez Laree eDirector | Grant or award A | +308 | 552.86 | 16,455 | Form 4 |
| 2025-05-15 | Pike ThomasDirector | Grant or award A | +308 | 552.86 | 4,384 | Form 4 |
| 2025-05-15 | Slager Donald WDirector | Grant or award A | +308 | 552.86 | 4,751 | Form 4 |
| 2025-05-15 | Wajsgras David CDirector | Grant or award A | +308 | 552.86 | 4,399 | Form 4 |
| 2025-03-05 | McCunniff Donald A.EVP and CHRO | Option exercise M | +1,332 | 154.58 | 4,855 | Form 4 |
| 2025-02-28 | Koraleski John JDirector | Grant or award A | +96 | 483.14 | 8,209 | Form 4 |
| 2025-02-28 | Pike ThomasDirector | Grant or award A | +65 | 483.14 | 4,076 | Form 4 |
| 2025-02-28 | Wajsgras David CDirector | Grant or award A | +78 | 483.14 | 4,091 | Form 4 |
| 2025-02-24 | Bar Roselyn RExecutive Vice President | Shares withheld for tax F | −402 | 490.64 | 63,568 | Form 4 |
| 2025-02-24 | Brooks Oliver WSVP - Enterprise Excellence | Shares withheld for tax F | −188 | 490.64 | 5,178 | Form 4 |
| 2025-02-24 | Cardin Robert JSr. VP, Controller and CAO | Shares withheld for tax F | −216 | 490.64 | 8,229 | Form 4 |
| 2025-02-24 | Nickolas James AjEVP and CFO | Shares withheld for tax F | −450 | 490.64 | 26,643 | Form 4 |
| 2025-02-24 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −2,032 | 490.64 | 152,174 | Form 4 |
| 2025-02-24 | Petro Michael JSVP - Strategy and Development | Shares withheld for tax F | −200 | 490.64 | 8,435 | Form 4 |
| 2025-02-21 | Bar Roselyn RExecutive Vice President | Grant or award A | +738 | 391.87 | 62,333 | Form 4 |
| 2025-02-21 | Bar Roselyn RExecutive Vice President | Grant or award A | +1,637 | – | 63,970 | Form 4 |
| 2025-02-21 | Brooks Oliver WSVP - Enterprise Excellence | Grant or award A | +744 | – | 5,366 | Form 4 |
| 2025-02-21 | Cardin Robert JSr. VP, Controller and CAO | Grant or award A | +795 | – | 8,445 | Form 4 |
| 2025-02-21 | Kohn Bradley DSVP, General Counsel and Secy | Grant or award A | +981 | – | 3,625 | Form 4 |
| 2025-02-21 | McCunniff Donald A.EVP and CHRO | Grant or award A | +1,543 | – | 3,523 | Form 4 |
| 2025-02-21 | Nickolas James AjEVP and CFO | Grant or award A | +1,637 | – | 27,093 | Form 4 |
| 2025-02-21 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +2,125 | 391.87 | 146,774 | Form 4 |
| 2025-02-21 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +7,432 | – | 154,206 | Form 4 |
| 2025-02-21 | Petro Michael JSVP - Strategy and Development | Grant or award A | +733 | – | 8,635 | Form 4 |
| 2025-02-18 | Bar Roselyn RExecutive Vice President | Grant or award A | +4,362 | – | 63,721 | Form 4 |
| 2025-02-18 | Bar Roselyn RExecutive Vice President | Shares withheld for tax F | −2,126 | 533.99 | 61,595 | Form 4 |
| 2025-02-18 | Brooks Oliver WSVP - Enterprise Excellence | Grant or award A | +215 | – | 4,756 | Form 4 |
| 2025-02-18 | Brooks Oliver WSVP - Enterprise Excellence | Shares withheld for tax F | −134 | 533.99 | 4,622 | Form 4 |
| 2025-02-18 | Cardin Robert JSr. VP, Controller and CAO | Grant or award A | +2,165 | – | 8,719 | Form 4 |
| 2025-02-18 | Cardin Robert JSr. VP, Controller and CAO | Shares withheld for tax F | −1,069 | 533.99 | 7,650 | Form 4 |
| 2025-02-18 | Nickolas James AjEVP and CFO | Grant or award A | +4,295 | – | 27,562 | Form 4 |
| 2025-02-18 | Nickolas James AjEVP and CFO | Shares withheld for tax F | −2,106 | 533.99 | 25,456 | Form 4 |
| 2025-02-18 | Nye C HowardDirector, Chairman, Pres & CEO | Grant or award A | +23,550 | – | 156,147 | Form 4 |
| 2025-02-18 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −11,498 | 533.99 | 144,649 | Form 4 |
| 2025-02-18 | Petro Michael JSVP - Strategy and Development | Grant or award A | +2,454 | – | 9,113 | Form 4 |
| 2025-02-18 | Petro Michael JSVP - Strategy and Development | Shares withheld for tax F | −1,211 | 533.99 | 7,902 | Form 4 |
| 2024-12-13 | Bar Roselyn REVP, General Counsel and Secy | Shares withheld for tax F | −65 | 550.92 | 59,359 | Form 4 |
| 2024-12-13 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −267 | 550.92 | 132,597 | Form 4 |
| 2024-12-12 | Bar Roselyn REVP, General Counsel and Secy | Gift G | −182 | – | 59,424 | Form 4 |
| 2024-12-02 | Bar Roselyn REVP, General Counsel and Secy | Shares withheld for tax F | −364 | 593.22 | 59,606 | Form 4 |
| 2024-12-02 | Nye C HowardDirector, Chairman, Pres & CEO | Shares withheld for tax F | −1,776 | 593.22 | 132,864 | Form 4 |
| 2024-12-02 | Petro Michael JSVP - Strategy and Development | Shares withheld for tax F | −93 | 593.22 | 6,659 | Form 4 |
| 2024-11-29 | Koraleski John JDirector | Grant or award A | +78 | 600.00 | 8,113 | Form 4 |
| 2024-11-29 | Pike ThomasDirector | Grant or award A | +53 | 600.00 | 4,011 | Form 4 |
| 2024-11-29 | Wajsgras David CDirector | Grant or award A | +63 | 600.00 | 4,013 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.