BlackRock, Inc. 13D and 13G filings for Amphastar Pharmaceuticals, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2024-01-23 11:53 am Sale |
2023-12-31 | 13G | Amphastar Pharmaceuticals, Inc. AMPH |
BlackRock Inc. BLK |
6,037,158 12.600% |
-1,001,611 (-14.23%) |
Filing |
| 2023-01-26 08:43 am Unchanged |
2022-12-31 | 13G | Amphastar Pharmaceuticals, Inc. AMPH |
BlackRock Inc. BLK |
7,038,769 14.600% |
0 (Unchanged) |
Filing |
| 2023-01-20 09:43 am Sale |
2022-12-31 | 13G | Amphastar Pharmaceuticals, Inc. AMPH |
BlackRock Inc. BLK |
7,038,769 14.600% |
-121,896 (-1.70%) |
Filing |
| 2022-01-28 1:54 pm Purchase |
2021-12-31 | 13G | Amphastar Pharmaceuticals, Inc. AMPH |
BlackRock Inc. BLK |
7,160,665 15.000% |
16,499 (+0.23%) |
Filing |
| 2021-01-26 2:22 pm Purchase |
2020-12-31 | 13G | Amphastar Pharmaceuticals, Inc. AMPH |
BlackRock Inc. BLK |
7,144,166 15.000% |
1,012,112 (+16.51%) |
Filing |