Amphastar Pharmaceuticals shares owned by Arrowstreet Capital, Limited Partnership
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Arrowstreet Capital, Limited Partnership
from 13F filings
Historical chart of Arrowstreet Capital, Limited Partnership investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by Arrowstreet Capital, Limited Partnership
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $15M | 559k | 26.78 |
| 2025-09-30 | $11M | 392k | 26.65 |
| 2025-06-30 | $1.9M | 81k | 22.96 |
| 2024-03-31 | $990k | 23k | 43.92 |
| 2023-09-30 | $1.3M | 28k | 45.98 |
| 2023-06-30 | $1.7M | 29k | 57.46 |
| 2023-03-31 | $2.8M | 74k | 37.50 |
| 2022-12-31 | $4.7M | 166k | 28.02 |
| 2022-09-30 | $5.7M | 201k | 28.10 |
| 2022-06-30 | $11M | 305k | 34.79 |
| 2022-03-31 | $14M | 392k | 35.90 |
| 2021-12-31 | $9.7M | 416k | 23.29 |
| 2021-09-30 | $3.8M | 199k | 19.01 |
| 2021-06-30 | $2.9M | 146k | 20.16 |
| 2021-03-31 | $1.0M | 56k | 18.33 |
| 2019-12-31 | $10M | 521k | 19.29 |
| 2019-09-30 | $9.0M | 454k | 19.83 |
| 2019-06-30 | $3.5M | 166k | 21.11 |
| 2019-03-31 | $3.1M | 151k | 20.43 |
| 2018-06-30 | $532k | 35k | 15.27 |
More positions owned by Arrowstreet Capital, Limited Partnership
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