---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-227560"
form_type: "8-K"
ticker: "ALSN"
cik: "0001411207"
company_name: "Allison Transmission Holdings Inc"
filed_at: "2021-07-28T23:59:59+00:00"
generated_at: "2026-06-30T01:35:01.139156+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Allison Q2 net sales $603M (+60% YoY), EPS $1.01, reaffirms guidance

## Summary
- Net sales $603M (+60% YoY); net income $110M up >375% from $23M.
- Diluted EPS $1.01; adjusted EBITDA $213M (35% of sales).
- Gross margin improved 400 bps to 47.8%.
- North America On-Highway net sales +84%, Outside NA On-Highway +63%.
- Settled $130M share repurchases; reaffirmed 2021 guidance.

## SEC filing metadata
- accession: 0001193125-21-227560
- form_type: 8-K
- ticker: ALSN
- cik: 0001411207
- company_name: Allison Transmission Holdings Inc
- filed_at: 2021-07-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1411207/000119312521227560/0001193125-21-227560-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1411207/000119312521227560/d193742d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-227560
- JSON: https://secwatch.observer/filing/0001193125-21-227560.json
- Plain text: https://secwatch.observer/filing/0001193125-21-227560.txt

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