Amphastar Pharmaceuticals shares owned by Portolan Capital Management
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Portolan Capital Management
from 13F filings
Historical chart of Portolan Capital Management investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by Portolan Capital Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2023-12-31 | $9.2M | 148k | 61.85 |
| 2023-09-30 | $6.1M | 133k | 45.99 |
| 2023-06-30 | $11M | 182k | 57.47 |
| 2023-03-31 | $13M | 341k | 37.50 |
| 2022-12-31 | $7.6M | 271k | 28.02 |
| 2022-09-30 | $7.9M | 282k | 28.10 |
| 2022-06-30 | $9.6M | 275k | 34.79 |
More positions owned by Portolan Capital Management
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