Martin Marietta Materials (MLM)
NYSE: MLM · Mining & Quarrying of Nonmetallic Minerals (No Fuels) · Raleigh, NC · filing with the SEC since 1996
Grade6.5
◀ Past 7.2● Present 6.7▶ Future 4.9
Filings
281 filings since 2017 beside 626 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026Due nextLarge accelerated filer
10-K
Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends.
by Mar 1, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by May 10, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 35 days after the quarter ended. The proxy statement was last filed Apr 15, 2026.
Filings a yearinsider forms included
9285839790897288
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 7 times in the last 36 months, the newest Aug 24, 2026.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Nov 4, 2026
8-K items 2.02, 7.01, 9.01
Results released; Investor disclosure (Regulation FD) · Current report
Nov 4, 2026
8-K/A item 9.01
Financial statements and exhibits · Current report, amended
Aug 21, 2026
Aug 24, 2026
8-K items 1.01, 2.01, 3.02, 5.02, 7.01, 9.01
Major agreement signed; Purchase or sale of a business completed; Shares sold without registration; Officer or director change; Investor disclosure (Regulation FD) · Current report
Aug 21, 2026
Aug 18, 2026
8-K items 1.01, 1.02, 2.03, 9.01
Major agreement signed; Major agreement ended; New debt or obligation taken on · Current report
Aug 14, 2026
8-K items 1.01, 2.03, 8.01, 9.01
Major agreement signed; New debt or obligation taken on; Other event · Current report
Aug 12, 2026
8-K items 1.01, 7.01, 9.01
Major agreement signed; Investor disclosure (Regulation FD) · Current report
Aug 11, 2026
Jul 30, 2026
8-K items 2.02, 7.01, 9.01
Results released; Investor disclosure (Regulation FD) · Current report
Jul 15, 2026
8-K items 1.01, 2.03, 9.01
Major agreement signed; New debt or obligation taken on · Current report
Jul 10, 2026
Jun 29, 2026
8-K items 1.01, 3.02, 8.01, 9.01
Major agreement signed; Shares sold without registration; Other event · Current report
Jun 27, 2026
May 14, 2026
8-K items 5.02, 5.07, 9.01
Officer or director change; Shareholder vote · Current report
Apr 30, 2026
8-K items 2.02, 7.01
Results released; Investor disclosure (Regulation FD) · Current report
Feb 23, 2026
8-K items 2.01, 7.01, 9.01
Purchase or sale of a business completed; Investor disclosure (Regulation FD) · Current report
40 of 281 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.