Amentum Holdings, Inc. — All Filings
180 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-000568 | Mar 26, 2026 | — |
| 4 | FORM 4 | 0001628280-26-015158 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | FORM 4 | 0001628280-26-014626 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001628280-26-009269 | Feb 18, 2026 | Feb 17, 2026 |
| 4 | FORM 4 | 0001628280-26-006839 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-26-006837 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-26-006835 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-26-006831 | Feb 10, 2026 | Feb 6, 2026 |
| 4/A | FORM 4/A | 0001628280-26-006829 | Feb 10, 2026 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-26-006828 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-26-006827 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-26-006820 | Feb 10, 2026 | Feb 6, 2026 |
| 8-K | FORM 8-K | 0001628280-26-006679 | Feb 10, 2026 | Feb 6, 2026 |
| 10-Q | FORM 10-Q | 0001628280-26-006676 | Feb 10, 2026 | Jan 2, 2026 |
| 8-K | FORM 8-K | 0001628280-26-006491 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001628280-26-004144 | Jan 29, 2026 | Jan 28, 2026 |
| 4/A | FORM 4/A | 0001628280-25-058378 | Dec 19, 2025 | Nov 17, 2025 |
| 4/A | FORM 4/A | 0001628280-25-058376 | Dec 19, 2025 | Nov 17, 2025 |
| 4/A | FORM 4/A | 0001628280-25-058374 | Dec 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-058286 | Dec 19, 2025 | Dec 17, 2025 |
| ARS | ARS | 0001104659-25-123135 | Dec 19, 2025 | Oct 3, 2025 |
| DEFA14A | DEFA14A | 0001104659-25-123126 | Dec 19, 2025 | — |
| DEF 14A | FORM DEF 14A | 0001104659-25-123111 | Dec 19, 2025 | Feb 6, 2026 |
| 4 | FORM 4 | 0001628280-25-056097 | Dec 9, 2025 | Dec 5, 2025 |
| 10-K | FORM 10-K | 0001628280-25-053993 | Nov 25, 2025 | Oct 3, 2025 |
| 8-K | FORM 8-K | 0001628280-25-053839 | Nov 24, 2025 | — |
| 4 | FORM 4 | 0001628280-25-053285 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053283 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053280 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053278 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053276 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053272 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053268 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-053259 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | FORM 4 | 0001628280-25-052958 | Nov 18, 2025 | Nov 15, 2025 |
| 4 | FORM 4 | 0001628280-25-051118 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-25-051117 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-25-051115 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-25-051113 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-25-051110 | Nov 10, 2025 | Nov 6, 2025 |
| 4 | FORM 4 | 0001628280-25-051106 | Nov 10, 2025 | Nov 6, 2025 |
| S-3ASR | S-3ASR | 0001628280-25-043444 | Oct 1, 2025 | — |
| 10-Q | FORM 10-Q | 0002011286-25-000163 | Aug 6, 2025 | Jun 27, 2025 |
| 8-K | FORM 8-K | 0002011286-25-000158 | Aug 5, 2025 | — |
| 4 | — | 0001641172-25-009710 | May 12, 2025 | May 8, 2025 |
| 4 | — | 0001641172-25-009708 | May 12, 2025 | May 8, 2025 |
| 4 | — | 0001641172-25-009707 | May 12, 2025 | May 8, 2025 |
| 4 | — | 0000950157-25-000397 | May 12, 2025 | May 8, 2025 |
| 10-Q | FORM 10-Q | 0002011286-25-000141 | May 7, 2025 | Mar 28, 2025 |
| 8-K | FORM 8-K | 0002011286-25-000135 | May 6, 2025 | — |