---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-063975"
form_type: "8-K"
ticker: "ALSN"
cik: "0001411207"
company_name: "Allison Transmission Holdings Inc"
filed_at: "2026-02-23T23:59:59+00:00"
generated_at: "2026-05-16T01:06:21.107888+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Allison Transmission Q4 net income $99M; FY 2025 Adj EBITDA 37.5%; 2026 guide includes Dana acquisition

## Summary
- Q4 net sales $737M, net income $99M ($1.18 diluted EPS); FY net sales $3,010M, net income $623M ($7.33 EPS).
- FY Adjusted EBITDA $1,130M (37.5% margin, +140bps YoY); adjusted free cash flow $661M.
- Defense end market FY sales $267M (+26% YoY); Outside NA On-Highway record $507M.
- Completed Dana Off-Highway acquisition Jan 1, 2026; FY 2026 guidance: consol. sales $5,575-$5,925M, Adj. EBITDA $1,365-$1,515M.
- Q4 included $26M acquisition expenses & $29M impairment; FY stock repurchases $328M (4% of shares).

## SEC filing metadata
- accession: 0001193125-26-063975
- form_type: 8-K
- ticker: ALSN
- cik: 0001411207
- company_name: Allison Transmission Holdings Inc
- filed_at: 2026-02-23T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1411207/000119312526063975/0001193125-26-063975-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1411207/000119312526063975/d105532d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-063975
- JSON: https://secwatch.observer/filing/0001193125-26-063975.json
- Plain text: https://secwatch.observer/filing/0001193125-26-063975.txt

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