Allison Transmission Holdings Inc SEC filings ALSN
Allison Transmission Holdings Inc has 1,001 filings in SEC EDGAR's recent list, going back to Sep 2, 2020. Its latest annual report, Form ARS, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 10-Q | Quarterly report | Oct 30, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 2, 2025 | Mar 31, 2025 |
| 10-Q | Quarterly report | Oct 30, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Jul 26, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | Apr 26, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Oct 26, 2023 | Sep 30, 2023 |
| 10-Q | Quarterly report | Jul 28, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | Apr 28, 2023 | Mar 31, 2023 |
| 10-Q | Quarterly report | Oct 27, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | Apr 28, 2022 | Mar 31, 2022 |
| 10-Q | Quarterly report | Oct 28, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Jul 29, 2021 | Jun 30, 2021 |
| 10-Q | Quarterly report | Apr 29, 2021 | Mar 31, 2021 |
| 10-Q | Quarterly report | Oct 29, 2020 | Sep 30, 2020 |
Showing 19 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Motor Vehicle Parts & Accessories (SIC 3714)
- Listed as
- ALSN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Indianapolis, IN
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1411207
- Former names
- Allison Transmission Holdings Inc (until Nov 4, 2026)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.