Amentum Holdings, Inc.
AMTMNYSECIK 2011286IndustrialsFiscal year ends Oct 2
Reports and events: 35 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-0220:19 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0002011286-26-000026 |
| 2026-08-1120:25 ET | 10-Q | Quarterly reportPeriod 2026-07-03 | 0001628280-26-055727 |
| 2026-08-1020:42 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-055294 |
| 2026-05-1220:37 ET | 10-Q | Quarterly reportPeriod 2026-04-03 | 0001628280-26-034156 |
| 2026-05-1121:05 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-033648 |
| 2026-04-2812:01 ET | 8-K | 1.01 Entry into a material agreement | 0002011286-26-000011 |
| 2026-02-1014:41 ET | 8-K | 5.07 Shareholder vote results | 0001628280-26-006679 |
| 2026-02-1014:20 ET | 10-Q | Quarterly reportPeriod 2026-01-02 | 0001628280-26-006676 |
| 2026-02-0921:37 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-006491 |
| 2025-12-1921:05 ET | DEF 14A | Proxy statementPeriod 2026-02-06 | 0001104659-25-123111 |
| 2025-11-2521:29 ET | 10-K | Annual reportPeriod 2025-10-03 | 0001628280-25-053993 |
| 2025-11-2421:41 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-053839 |
| 2025-08-0620:19 ET | 10-Q | Quarterly reportPeriod 2025-06-27 | 0002011286-25-000163 |
| 2025-08-0520:45 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0002011286-25-000158 |
| 2025-05-0720:37 ET | 10-Q | Quarterly reportPeriod 2025-03-28 | 0002011286-25-000141 |
| 2025-05-0620:38 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0002011286-25-000135 |
| 2025-03-1012:21 ET | S-1 | Registration statement | 0001628280-25-011468 |
| 2025-03-0721:44 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0002011286-25-000094 |
| 2025-03-0721:38 ET | 8-K | 9.01 Financial statements and exhibits | 0002011286-25-000090 |
| 2025-03-0721:36 ET | 8-K | 5.07 Shareholder vote results | 0002011286-25-000085 |
| 2025-02-0521:36 ET | 10-Q | Quarterly reportPeriod 2024-12-27 | 0002011286-25-000060 |
| 2025-02-0421:34 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0002011286-25-000056 |
| 2025-01-3021:21 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0002011286-25-000041 |
| 2025-01-2121:22 ET | DEF 14A | Proxy statementPeriod 2025-03-05 | 0002011286-25-000024 |
| 2024-12-2300:03 ET | SCHEDULE 13D | Ownership report, active investor | 0001493152-24-051925 |
| 2024-12-2323:03 ET | SCHEDULE 13D | Ownership report, active investor | 0000950157-24-001703 |
| 2024-12-1923:05 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950157-24-001690 |
| 2024-12-1721:35 ET | 10-K | Annual reportPeriod 2024-09-27 | 0002011286-24-000072 |
| 2024-12-1621:39 ET | 8-K | 2.02 Results of operations | 0002011286-24-000064 |
| 2024-11-1321:18 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0002011286-24-000042 |
| 2024-10-0422:13 ET | SC 13D | Ownership report, active investor | 0000950157-24-001378 |
| 2024-10-0320:48 ET | 8-K/A | 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 | 0000950157-24-001363 |
| 2024-10-0320:21 ET | 8-K | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 5.01 Change in control; 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950157-24-001361 |
| 2024-09-2719:46 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001193125-24-227910 |
| 2024-09-1820:47 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-221432 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:06 ET. Listed shows no prices and gives no investment advice.