Amphastar Pharmaceuticals shares owned by Quadrant Capital
Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Quadrant Capital
from 13F filings
Historical chart of Quadrant Capital investment in Amphastar Pharmaceuticals
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All positions including Amphastar Pharmaceuticals held by Quadrant Capital consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Amphastar Pharmaceuticals by Quadrant Capital
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $49k | 1.1k | 43.29 |
| 2025-12-31 | $73k | 2.7k | 26.78 |
| 2025-09-30 | $82k | 3.1k | 26.65 |
| 2025-03-31 | $240k | 8.3k | 28.99 |
| 2024-12-31 | $28k | 740 | 37.13 |
| 2024-09-30 | $36k | 740 | 48.53 |
| 2024-06-30 | $32k | 793 | 40.00 |
| 2024-03-31 | $35k | 803 | 43.91 |
| 2023-12-31 | $64k | 1.0k | 61.85 |
| 2023-09-30 | $37k | 803 | 45.99 |
| 2023-06-30 | $47k | 822 | 57.47 |
| 2023-03-31 | $31k | 812 | 37.50 |
| 2022-12-31 | $8.4k | 301 | 28.02 |
| 2022-09-30 | $11k | 404 | 27.23 |
| 2022-06-30 | $8.0k | 227 | 35.24 |
| 2022-03-31 | $14k | 394 | 35.53 |
| 2021-12-31 | $6.0k | 245 | 24.49 |
| 2021-09-30 | $7.0k | 356 | 19.66 |
| 2021-06-30 | $2.0k | 108 | 18.52 |
| 2021-03-31 | $2.0k | 118 | 16.95 |
| 2020-12-31 | $999 | 55 | 18.18 |
| 2020-09-30 | $999 | 55 | 18.18 |
| 2020-06-30 | $999 | 55 | 18.18 |
| 2020-03-31 | $0 | 55 | 0.00 |
| 2019-06-30 | $54k | 2.6k | 20.29 |
| 2019-03-31 | $54k | 2.6k | 20.29 |