Amphastar Pharmaceuticals, Inc. SEC filings AMPH
Amphastar Pharmaceuticals, Inc. has 954 filings in SEC EDGAR's recent list, going back to Feb 11, 2005. Its latest annual report, Form ARS, was filed on Apr 13, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 6, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Nov 8, 2023 | Sep 30, 2023 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 10-Q | Quarterly report | Nov 8, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 9, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 10-Q | Quarterly report | Nov 9, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 9, 2021 | Jun 30, 2021 |
| 10-Q | Quarterly report | May 7, 2021 | Mar 31, 2021 |
| 10-Q | Quarterly report | Nov 6, 2020 | Sep 30, 2020 |
| 10-Q | Quarterly report | Aug 7, 2020 | Jun 30, 2020 |
| 10-Q | Quarterly report | May 11, 2020 | Mar 31, 2020 |
| 10-Q | Quarterly report | Nov 8, 2019 | Sep 30, 2019 |
| 10-Q | Quarterly report | Aug 9, 2019 | Jun 30, 2019 |
| 10-Q | Quarterly report | May 10, 2019 | Mar 31, 2019 |
| 10-Q | Quarterly report | Nov 9, 2018 | Sep 30, 2018 |
| 10-Q | Quarterly report | Aug 9, 2018 | Jun 30, 2018 |
| 10-Q | Quarterly report | May 10, 2018 | Mar 31, 2018 |
| 10-Q | Quarterly report | Nov 9, 2017 | Sep 30, 2017 |
| 10-Q | Quarterly report | Aug 9, 2017 | Jun 30, 2017 |
| 10-Q | Quarterly report | May 10, 2017 | Mar 31, 2017 |
| 10-Q | Quarterly report | Nov 9, 2016 | Sep 30, 2016 |
| 10-Q | Quarterly report | Aug 9, 2016 | Jun 30, 2016 |
| 10-Q | Quarterly report | May 10, 2016 | Mar 31, 2016 |
| 10-Q | Quarterly report | Nov 13, 2015 | Sep 30, 2015 |
| 10-Q | Quarterly report | Aug 13, 2015 | Jun 30, 2015 |
| 10-Q | Quarterly report | May 14, 2015 | Mar 31, 2015 |
| 10-Q | Quarterly report | Nov 13, 2014 | Sep 30, 2014 |
| 10-Q | Quarterly report | Aug 13, 2014 | Jun 30, 2014 |
Showing 37 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- AMPH (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Rancho Cucamonga, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1297184
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.