---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-053839"
form_type: "8-K"
ticker: "AMTM"
cik: "0002011286"
company_name: "Amentum Holdings, Inc."
filed_at: "2025-11-24T23:59:59+00:00"
generated_at: "2026-05-16T17:24:18.249751+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Amentum reports Q4/FY2025: revenue $14.4B, adj. EBITDA $1,104M, backlog $47B

## Summary
- FY2025 revenue $14,393M (4% pro forma growth); net income $66M vs $82M loss prior year.
- Adjusted EBITDA $1,104M (5% growth); adjusted diluted EPS $2.22 (11% growth).
- Q4 revenue $3,925M (10% pro forma growth); adjusted EBITDA $300M (8% growth).
- Operating cash flow $543M; free cash flow $516M; backlog $47B; book-to-bill 1.2x FY.
- Issued FY2026 guidance; net debt reduced to $3.6B, net leverage 3.2x.

## SEC filing metadata
- accession: 0001628280-25-053839
- form_type: 8-K
- ticker: AMTM
- cik: 0002011286
- company_name: Amentum Holdings, Inc.
- filed_at: 2025-11-24T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2011286/000162828025053839/0001628280-25-053839-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2011286/000162828025053839/amtm-20251124.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-053839
- JSON: https://secwatch.observer/filing/0001628280-25-053839.json
- Plain text: https://secwatch.observer/filing/0001628280-25-053839.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.