Amphastar Pharmaceuticals, Inc.
SEC Filing List
AMPH CIK: 0001297184
| Form | Description | Owner/Filer | Filing Agent | Date | Actions |
|---|---|---|---|---|---|
| 4 | Statement of changes in beneficial owner... | Zasloff Michael A | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Gaugh David Russell | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Deflin Gayle | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Prins Richard K | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Gerst Diane G. | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Lee Howard | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Lee Howard | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 4 | Statement of changes in beneficial owner... | Prins Richard K | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | |
| 8-K | Current report filing | Amphastar Pharmaceuticals, Inc. | 06/03/2026 | ||
| 10-Q | Quarterly report pursuant to Section 13 ... | Amphastar Pharmaceuticals, Inc. | 05/07/2026 | ||
| No record found. | |||||
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