Company facts
- Industry
- Pharmaceutical Preparations
- Headquarters
- Rancho Cucamonga, California
- Most recent report
- 10-Q, filed Nov 5, 2026
- Incorporated
- N/A
- Filings on record
- 958 filings
- On EDGAR
- CIK 1297184
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 50
News 8 of 106
Prospectuses and Registrations 8 of 29
- S-8 Registration statement for an employee plan Feb 29, 2024
- S-8 Registration statement for an employee plan Mar 1, 2023
- S-8 Registration statement for an employee plan Mar 11, 2022
- S-3 Shelf registration statement Nov 9, 2021
- S-8 Registration statement for an employee plan Mar 15, 2021
- S-8 Registration statement for an employee plan Mar 16, 2020
- S-8 Registration statement for an employee plan Mar 15, 2019
- S-3 Shelf registration statement Nov 9, 2018
Proxies 8 of 28
- DEFA14A Extra proxy material Apr 13, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 13, 2026
- DEFA14A Extra proxy material Apr 14, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 14, 2025
- PRE 14A Preliminary proxy statement Apr 2, 2025
- DEFA14A Extra proxy material Apr 19, 2024
- DEFA14A Extra proxy material Apr 12, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 12, 2024
Ownership 8 of 704
- 4 Insider reported a trade Nov 6, 2026
- 144 Notice of a proposed sale of restricted stock Nov 5, 2026
- 144 Notice of a proposed sale of restricted stock Nov 4, 2026
- 4 Insider reported a trade Sep 23, 2026
- 144 Notice of a proposed sale of restricted stock Sep 21, 2026
- 4 Insider reported a trade Sep 17, 2026
- 4 Insider reported a trade Sep 3, 2026
- 144 Notice of a proposed sale of restricted stock Sep 1, 2026
Other 8 of 41
- ARS Annual report sent to shareholders Apr 13, 2026
- ARS Annual report sent to shareholders Apr 14, 2025
- ARS Annual report sent to shareholders Apr 12, 2024
- ARS Annual report sent to shareholders Apr 14, 2023
- EFFECT Notice that a registration became effective Nov 19, 2021
- CORRESP Reply to SEC staff Nov 17, 2021
- UPLOAD Comment letter from SEC staff Nov 15, 2021
- EFFECT Notice that a registration became effective Nov 20, 2018
Everything here comes from Amphastar Pharmaceuticals, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.