# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001628280-26-034156
Filing Date
2026-05-12
Accepted
2026-05-12 16:37:43
Documents
72
Period of Report
2026-04-03

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-Q | amtm-20260403.htm iXBRL | 10-Q | 1344806
2 | EX-31.1 | amtm040326ex311.htm | EX-31.1 | 9095
3 | EX-31.2 | amtm040326ex312.htm | EX-31.2 | 9077
4 | EX-32.1 | amtm040326ex321.htm | EX-32.1 | 4849
5 | EX-32.2 | amtm040326ex322.htm | EX-32.2 | 4862
11 | GRAPHIC | amtm-20260403_g1.jpg | GRAPHIC | 203890
| Complete submission text file | 0001628280-26-034156.txt |  | 7776325

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | amtm-20260403.xsd | EX-101.SCH | 37474
7 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | amtm-20260403_cal.xml | EX-101.CAL | 68118
8 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | amtm-20260403_def.xml | EX-101.DEF | 159452
9 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | amtm-20260403_lab.xml | EX-101.LAB | 492252
10 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | amtm-20260403_pre.xml | EX-101.PRE | 352845
76 | EXTRACTED XBRL INSTANCE DOCUMENT | amtm-20260403_htm.xml | XML | 1296451

Mailing Address 4800 WESTFIELDS BOULEVARD SUITE 400 CHANTILLY VA 20151
Business Address 4800 WESTFIELDS BOULEVARD SUITE 400 CHANTILLY VA 20151 7035790410
Amentum Holdings, Inc. (Filer) CIK: 0002011286 (see all company filings)

EIN.: 990622272 | State of Incorp.: DE | Fiscal Year End: 1002
Type: 10-Q | Act: 34 | File No.: 001-42176 | Film No.: 26969275
SIC: 7389 Services-Business Services, NEC
(CF Office: 07 Trade & Services)