Amphastar Pharmaceuticals shares owned by Calamos Advisors
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Calamos Advisors
from 13F filings
Historical chart of Calamos Advisors investment in Amphastar Pharmaceuticals
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Quarterly reported holdings in Amphastar Pharmaceuticals by Calamos Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2023-12-31 | $1.2M | 20k | 61.85 |
| 2022-06-30 | $3.5M | 101k | 34.80 |
| 2022-03-31 | $3.4M | 95k | 35.90 |