Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001628280-25-053993
Filing Date
2025-11-25
Accepted
2025-11-25 16:29:21
Documents
127
Period of Report
2025-10-03

Document Format Files

Seq Description Document Type Size
1 FORM 10-K amtm-20251003.htm   iXBRL 10-K 2388234
2 EX-21.1 amtm100325ex211.htm EX-21.1 93039
3 EX-23.1 amtm100325ex231.htm EX-23.1 4263
4 EX-31.1 amtm100325ex311.htm EX-31.1 10499
5 EX-31.2 amtm100325ex312.htm EX-31.2 10553
6 EX-32.1 amtm100325ex321.htm EX-32.1 4852
7 EX-32.2 amtm100325ex322.htm EX-32.2 4865
13 GRAPHIC amtm-20251003_g1.jpg GRAPHIC 203890
14 GRAPHIC amtm-20251003_g2.jpg GRAPHIC 92151
  Complete submission text file 0001628280-25-053993.txt   14464723

Data Files

Seq Description Document Type Size
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT amtm-20251003.xsd EX-101.SCH 80092
9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT amtm-20251003_cal.xml EX-101.CAL 170609
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT amtm-20251003_def.xml EX-101.DEF 372368
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT amtm-20251003_lab.xml EX-101.LAB 1006718
12 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT amtm-20251003_pre.xml EX-101.PRE 735590
129 EXTRACTED XBRL INSTANCE DOCUMENT amtm-20251003_htm.xml XML 2284367
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: 1003
Type: 10-K | Act: 34 | File No.: 001-42176 | Film No.: 251521708
SIC: 7389 Services-Business Services, NEC
(CF Office: 07 Trade & Services)