Amphastar Pharmaceuticals, Inc.
SEC Filing List
AMPH CIK: 0001297184
| Form | Description | Owner/Filer | Filing Agent | Date | Actions |
|---|---|---|---|---|---|
| 4 | Statement of changes in beneficial owner... | Prins Richard K | Amphastar Pharmaceuticals, Inc. | 08/12/2026 | |
| 4 | Statement of changes in beneficial owner... | Peters William J | Amphastar Pharmaceuticals, Inc. | 08/11/2026 | |
| 144 | Filing for proposed sale of securities u... | UBS Financial Services Inc Restricted Sale Group / FA /fa | 08/11/2026 | ||
| 144 | Filing for proposed sale of securities u... | UBS Financial Services Inc Restricted Sale Group / FA /fa | 08/07/2026 | ||
| 8-K | Current report filing | Amphastar Pharmaceuticals, Inc. | 08/06/2026 | ||
| 10-Q | Quarterly report pursuant to Section 13 ... | Amphastar Pharmaceuticals, Inc. | 08/06/2026 | ||
| SCHEDULE 13G | 07/14/2026 | ||||
| 3 | Initial statement of beneficial ownershi... | Pierce Anthony T | Amphastar Pharmaceuticals, Inc. | 07/13/2026 | |
| 8-K | Current report filing | Amphastar Pharmaceuticals, Inc. | Toppan Merrill/FA | 07/13/2026 | |
| 3 | Initial statement of beneficial ownershi... | Pierce Anthony T | Amphastar Pharmaceuticals, Inc. | 07/13/2026 | |
| No record found. | |||||
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