Amphastar Pharmaceuticals shares owned by GSA Capital Partners
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by GSA Capital Partners
from 13F filings
Historical chart of GSA Capital Partners investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by GSA Capital Partners
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-06-30 | $1.3M | 57k | 22.96 |
| 2025-03-31 | $1.3M | 45k | 28.99 |
| 2024-12-31 | $647k | 17k | 37.11 |
| 2024-09-30 | $303k | 6.2k | 48.49 |
| 2023-03-31 | $819k | 22k | 37.48 |
| 2021-03-31 | $631k | 34k | 18.33 |
| 2018-06-30 | $504k | 33k | 15.27 |
| 2017-09-30 | $400k | 22k | 17.86 |
| 2016-12-31 | $1.0M | 57k | 18.43 |
| 2016-09-30 | $343k | 18k | 18.95 |
| 2015-12-31 | $164k | 12k | 14.26 |
| 2015-09-30 | $146k | 13k | 11.69 |
| 2015-03-31 | $215k | 14k | 14.93 |
| 2014-12-31 | $352k | 30k | 11.62 |