Michael J. Petro

Companies

• Martin Marietta MaterialsChief financial officer Jul 9, 2025 to now¹
• Martin Marietta MaterialsSVP - Strategy and Development Aug 13, 2021 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• MMMartin Marietta Materials MLM24,322 shares³$11.9M at $491.23Sep 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 1, 2026Granted 9,331 shares of Martin Marietta Materials³
• Aug 3, 2026Shares withheld for tax 368 shares at $542.27 of Martin Marietta Materials⁴
• Mar 1, 2026Granted 2,960 shares of Martin Marietta Materials⁵
• Feb 24, 2026Shares withheld for tax 94 shares at $696.85 of Martin Marietta Materials⁶
• Feb 23, 2026Shares withheld for tax 211 shares at $683.60 of Martin Marietta Materials⁶
• Feb 20, 2026Granted 931 shares of Martin Marietta Materials⁷
• Feb 17, 2026Shares withheld for tax 758 shares at $666.53 of Martin Marietta Materials⁸
• Feb 17, 2026Granted 1,724 shares of Martin Marietta Materials⁸
• Jul 8, 2025Granted 1,822 shares of Martin Marietta Materials⁹
• Mar 4, 2025Bought 550 shares at $454.37 of Martin Marietta Materials¹⁰
• Feb 24, 2025Shares withheld for tax 200 shares at $490.64 of Martin Marietta Materials¹¹
• Feb 21, 2025Granted 733 shares of Martin Marietta Materials¹¹
• Feb 18, 2025Shares withheld for tax 1,211 shares at $533.99 of Martin Marietta Materials¹²
• Feb 18, 2025Granted 2,454 shares of Martin Marietta Materials¹²
• Dec 2, 2024Shares withheld for tax 93 shares at $593.22 of Martin Marietta Materials¹³
• Feb 26, 2024Shares withheld for tax 96 shares at $553.31 of Martin Marietta Materials¹⁴
• Feb 23, 2024Granted 714 shares of Martin Marietta Materials¹⁴
• Feb 21, 2024Shares withheld for tax 405 shares at $536.30 of Martin Marietta Materials¹⁵
• Feb 21, 2024Granted 920 shares of Martin Marietta Materials¹⁶
• Feb 20, 2024Shares withheld for tax 250 shares at $533.14 of Martin Marietta Materials¹⁵
• Feb 24, 2023Granted 650 shares of Martin Marietta Materials¹⁷
• Feb 21, 2023Shares withheld for tax 171 shares at $359.70 of Martin Marietta Materials¹⁸
• Feb 21, 2023Granted 209 shares of Martin Marietta Materials¹⁸
• Feb 17, 2023Shares withheld for tax 88 shares at $371.68 of Martin Marietta Materials¹⁹
• Feb 22, 2022Shares withheld for tax 55 shares at $380.08 of Martin Marietta Materials²⁰