# Martin Marietta Materials Inc: filings

MLM · NYSE · CIK 916076 · [Materials](/sectors/materials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/mlm.md) · [Financials](/companies/mlm/financials.md) · [Filings](/companies/mlm/filings.md) · [Insiders](/companies/mlm/insiders.md)

## Reports and events: 334 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 1219, 8-K 232, SC 13G/A 72, 425 65, 10-Q 53, SC TO-T/A 33, 3 29, 11-K 25, CORRESP 21, SC 13G 19, UPLOAD 19, 10-K 18, DEF 14A 18, 4/A 17, DFAN14A 10, 144 9, 424B5 8, 424B2 6, FWP 6, S-3ASR 5, S-4/A 5, SC 13D/A 5, ARS 4, PRRN14A 4, S-8 4, SCHEDULE 13G/A 4, 8-K/A 3, S-4 3, SD 3, 424B3 2, EFFECT 2, PRE 14A 2, PX14A6G 2, SC 13D 2, SCHEDULE 13G 2, 10-K/A 1, 10-Q/A 1, DEFC14A 1, DFRN14A 1, NO ACT 1, POSASR 1, PREC14A 1, RW 1, SCHEDULE 13D 1, SC TO-T 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-16 | 16:11 ET | [8-K](/filings/0000950157-26-001024.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950157-26-001024 |
| 2026-08-24 | 16:34 ET | [SCHEDULE 13D](/filings/0001493152-26-039879.md) | Ownership report, active investor | 0001493152-26-039879 |
| 2026-08-24 | 07:33 ET | [8-K](/filings/0000950157-26-000946.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 3.02 Unregistered sale of equity; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-26-000946 |
| 2026-08-18 | 17:00 ET | [8-K](/filings/0000950157-26-000922.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950157-26-000922 |
| 2026-08-14 | 16:13 ET | [8-K](/filings/0001193125-26-352270.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-352270 |
| 2026-08-12 | 16:19 ET | [8-K](/filings/0001193125-26-346914.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-346914 |
| 2026-08-10 | 09:08 ET | [8-K](/filings/0001193125-26-341412.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-341412 |
| 2026-08-05 | 17:14 ET | [8-K](/filings/0000950157-26-000850.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000950157-26-000850 |
| 2026-08-04 | 16:52 ET | [8-K](/filings/0000950157-26-000837.md) | 5.02 Departure or appointment of officers or directors | 0000950157-26-000837 |
| 2026-07-30 | 15:35 ET | [10-Q](/filings/0001193125-26-326001.md) | Quarterly report, period 2026-06-30 | 0001193125-26-326001 |
| 2026-07-30 | 07:03 ET | [8-K](/filings/0001193125-26-324863.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-324863 |
| 2026-07-15 | 16:09 ET | [8-K](/filings/0000950157-26-000802.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950157-26-000802 |
| 2026-06-29 | 17:27 ET | [8-K](/filings/0000950157-26-000770.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950157-26-000770 |
| 2026-06-29 | 07:43 ET | [8-K](/filings/0000950157-26-000758.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-26-000758 |
| 2026-05-14 | 17:07 ET | [8-K](/filings/0001193125-26-224306.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001193125-26-224306 |
| 2026-04-30 | 13:31 ET | [10-Q](/filings/0001193125-26-196029.md) | Quarterly report, period 2026-03-31 | 0001193125-26-196029 |
| 2026-04-30 | 07:02 ET | [8-K](/filings/0001193125-26-193931.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure | 0001193125-26-193931 |
| 2026-04-27 | 16:17 ET | [8-K](/filings/0000950157-26-000549.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950157-26-000549 |
| 2026-04-15 | 16:16 ET | [DEF 14A](/filings/0001193125-26-157039.md) | Proxy statement, period 2026-05-14 | 0001193125-26-157039 |
| 2026-02-23 | 16:20 ET | [8-K](/filings/0000950157-26-000175.md) | 2.01 Completion of an acquisition or disposition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-26-000175 |
| 2026-02-19 | 15:16 ET | [10-K](/filings/0001193125-26-059193.md) | Annual report, period 2025-12-31 | 0001193125-26-059193 |
| 2026-02-13 | 16:23 ET | [8-K](/filings/0001193125-26-051474.md) | 1.04 Item not in the standard list | 0001193125-26-051474 |
| 2026-02-11 | 07:01 ET | [8-K](/filings/0001193125-26-045530.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-045530 |
| 2026-01-02 | 18:11 ET | [8-K](/filings/0000950157-25-001042.md) | 7.01 Regulation FD disclosure | 0000950157-25-001042 |
| 2025-12-19 | 16:13 ET | [8-K](/filings/0000950157-25-001013.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950157-25-001013 |
| 2025-11-04 | 15:50 ET | [10-Q](/filings/0001193125-25-264566.md) | Quarterly report, period 2025-09-30 | 0001193125-25-264566 |
| 2025-11-04 | 07:02 ET | [8-K](/filings/0001193125-25-263528.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-263528 |
| 2025-09-17 | 16:13 ET | [8-K](/filings/0000950157-25-000794.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950157-25-000794 |
| 2025-09-03 | 08:49 ET | [8-K](/filings/0000950157-25-000750.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-25-000750 |
| 2025-08-07 | 16:18 ET | [10-Q](/filings/0000950170-25-105060.md) | Quarterly report, period 2025-06-30 | 0000950170-25-105060 |
| 2025-08-07 | 16:05 ET | [8-K](/filings/0000950157-25-000633.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950157-25-000633 |
| 2025-08-07 | 07:01 ET | [8-K](/filings/0000950170-25-104539.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-104539 |
| 2025-08-04 | 08:31 ET | [8-K](/filings/0000950157-25-000609.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-25-000609 |
| 2025-07-08 | 07:32 ET | [8-K](/filings/0000950157-25-000556.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950157-25-000556 |
| 2025-05-15 | 15:56 ET | [8-K](/filings/0000950170-25-072530.md) | 5.07 Shareholder vote results | 0000950170-25-072530 |
| 2025-04-30 | 15:02 ET | [10-Q](/filings/0000950170-25-060940.md) | Quarterly report, period 2025-03-31 | 0000950170-25-060940 |
| 2025-04-30 | 06:58 ET | [8-K](/filings/0000950170-25-060549.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-060549 |
| 2025-04-15 | 09:39 ET | [DEF 14A](/filings/0001193125-25-080903.md) | Proxy statement, period 2025-05-15 | 0001193125-25-080903 |
| 2025-04-10 | 16:31 ET | [8-K](/filings/0000950157-25-000310.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950157-25-000310 |
| 2025-02-21 | 14:57 ET | [10-K](/filings/0000950170-25-024770.md) | Annual report, period 2024-12-31 | 0000950170-25-024770 |
| 2025-02-12 | 07:00 ET | [8-K](/filings/0000950170-25-018398.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-018398 |
| 2024-12-20 | 16:12 ET | [8-K](/filings/0000950157-24-001697.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000950157-24-001697 |
| 2024-12-03 | 17:25 ET | [8-K](/filings/0000950170-24-132888.md) | 5.02 Departure or appointment of officers or directors | 0000950170-24-132888 |
| 2024-11-04 | 16:09 ET | [8-K](/filings/0000950157-24-001472.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950157-24-001472 |
| 2024-11-01 | 08:36 ET | [8-K](/filings/0000950157-24-001462.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-24-001462 |
| 2024-10-30 | 14:23 ET | [10-Q](/filings/0000950170-24-118821.md) | Quarterly report, period 2024-09-30 | 0000950170-24-118821 |
| 2024-10-30 | 07:00 ET | [8-K](/filings/0000950170-24-118583.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-118583 |
| 2024-09-19 | 16:34 ET | [8-K](/filings/0000950157-24-001270.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950157-24-001270 |
| 2024-09-18 | 10:15 ET | [8-K](/filings/0000950170-24-107631.md) | 1.04 Item not in the standard list | 0000950170-24-107631 |
| 2024-08-08 | 12:27 ET | [10-Q](/filings/0000950170-24-093580.md) | Quarterly report, period 2024-06-30 | 0000950170-24-093580 |

Page 1 of 7. [Older](/companies/mlm/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 13:55 ET. No prices; not investment advice.