AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 167 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $36,000 | +227.3% | 1,562 | +178.9% | 0.00% | +300.0% |
| Q4 2020 | $11,000 | +22.2% | 560 | +21.0% | 0.00% | 0.0% |
| Q3 2020 | $9,000 | -97.2% | 463 | -96.8% | 0.00% | -97.7% |
| Q2 2020 | $324,000 | +383.6% | 14,435 | +326.1% | 0.04% | +760.0% |
| Q4 2018 | $67,000 | +4.7% | 3,388 | -1.9% | 0.01% | +400.0% |
| Q4 2016 | $64,000 | -92.4% | 3,452 | -92.2% | 0.00% | -94.4% |
| Q3 2016 | $842,000 | – | 44,369 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Campbell & CO Investment Adviser LLC | 11,961 | $219,000 | 0.13% |
| FEDERATED HERMES, INC. | 3,441,367 | $63,046,000 | 0.12% |
| CORNERCAP INVESTMENT COUNSEL INC | 54,751 | $1,003,000 | 0.11% |
| GSA CAPITAL PARTNERS LLP | 34,425 | $631,000 | 0.10% |
| First Trust Direct Indexing L.P. | 11,913 | $218,000 | 0.06% |
| Summit Global Investments | 47,546 | $871,000 | 0.06% |
| WINTON GROUP Ltd | 49,766 | $912,000 | 0.05% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 397,950 | $7,290,000 | 0.05% |
| AIGEN INVESTMENT MANAGEMENT, LP | 16,077 | $295,000 | 0.04% |
| EXCHANGE TRADED CONCEPTS, LLC | 52,334 | $959,000 | 0.04% |