No open-market purchases or sales by Martin Marietta Materials Inc insiders were filed in the last 90 days; 1,082 institutions reported holding it in 13F filings for Q2 2026, worth $34.2B in total; 4 superinvestors hold it, including TCI Fund Management and Gardner Russo & Quinn.
SEC filings
10-K, 10-Q, 8-K, 20-F and 40-F reports Martin Marietta Materials Inc filed with the SEC, newest first.
Livermore lists each filing's form, 8-K items and dates only. To read a filing, open it on SEC.gov; an 8-K's press release or other attachments, such as exhibit 99.1 for Item 2.02, are in the filing index.
1.01Item 1.01: Entry into a material definitive agreement2.01Item 2.01: Completion of an acquisition or disposition of assets3.02Item 3.02: Unregistered sale of equity securities5.02Item 5.02: Departure or appointment of directors or officers; executive pay arrangements7.01Item 7.01: Regulation FD disclosure9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement1.02Item 1.02: Termination of a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation8.01Item 8.01: Other events9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement3.02Item 3.02: Unregistered sale of equity securities8.01Item 8.01: Other events9.01Item 9.01: Financial statements and exhibits
5.02Item 5.02: Departure or appointment of directors or officers; executive pay arrangements5.07Item 5.07: Results of a shareholder vote9.01Item 9.01: Financial statements and exhibits
2.01Item 2.01: Completion of an acquisition or disposition of assets7.01Item 7.01: Regulation FD disclosure9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation9.01Item 9.01: Financial statements and exhibits
2.02Item 2.02: Results of operations and financial condition (earnings release)5.02Item 5.02: Departure or appointment of directors or officers; executive pay arrangements9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation9.01Item 9.01: Financial statements and exhibits
1.01Item 1.01: Entry into a material definitive agreement2.03Item 2.03: New direct financial obligation, such as new debt or an off-balance-sheet obligation8.01Item 8.01: Other events9.01Item 9.01: Financial statements and exhibits
