Amphastar Pharmaceuticals shares owned by Quadrature Capital
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Quadrature Capital
from 13F filings
Historical chart of Quadrature Capital investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by Quadrature Capital
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $599k | 31k | 19.59 |