Amphastar Pharmaceuticals shares owned by O'shaughnessy Asset Management
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by O'shaughnessy Asset Management
from 13F filings
Historical chart of O'shaughnessy Asset Management investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by O'shaughnessy Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $1.8M | 69k | 26.65 |
| 2025-06-30 | $926k | 40k | 22.96 |
| 2023-12-31 | $262k | 4.2k | 61.85 |
| 2019-12-31 | $3.0k | 143 | 20.98 |
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