# EDGAR Filing Document

**Accession Number:** 0002011286
**File Stem:** 0001104659-25-123135
**Filing Date:** 2025-12
**Character Count:** 1301
**Document Hash:** 2843824a5a8a821d45587c6432aee1ed
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-123135.hdr.sgml**: 20251219

**ACCESSION NUMBER**: 0001104659-25-123135

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251003

**FILED AS OF DATE**: 20251219

**DATE AS OF CHANGE**: 20251219

**EFFECTIVENESS DATE**: 20251219

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Amentum Holdings, Inc.
- **CENTRAL INDEX KEY:** 0002011286
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-BUSINESS SERVICES, NEC [7389]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 990622272
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1003

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42176
- **FILM NUMBER:** 251587650

**BUSINESS ADDRESS:**
- **STREET 1:** 4800 WESTFIELDS BOULEVARD
- **STREET 2:** SUITE 400
- **CITY:** CHANTILLY
- **STATE:** VA
- **ZIP:** 20151
- **BUSINESS PHONE:** 7035790410

**MAIL ADDRESS:**
- **STREET 1:** 4800 WESTFIELDS BOULEVARD
- **STREET 2:** SUITE 400
- **CITY:** CHANTILLY
- **STATE:** VA
- **ZIP:** 20151

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Amazon Holdco Inc.
- **DATE OF NAME CHANGE:** 20240208

### Attached PDF Documents

**Attachment 1:** `tm2533417d2_ars.pdf`

_No text found in this document._