AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 119 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $4,231 | -20.0% | 92 | 0.0% | 0.00% | 0.0% |
| Q2 2023 | $5,287 | +53.2% | 92 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $3,450 | +33.8% | 92 | 0.0% | 0.00% | – |
| Q4 2022 | $2,578 | -14.1% | 92 | -5.2% | 0.00% | -100.0% |
| Q3 2022 | $3,000 | -25.0% | 97 | -9.3% | 0.00% | 0.0% |
| Q2 2022 | $4,000 | 0.0% | 107 | +9.2% | 0.00% | 0.0% |
| Q1 2022 | $4,000 | +100.0% | 98 | +10.1% | 0.00% | – |
| Q4 2021 | $2,000 | +100.0% | 89 | +56.1% | 0.00% | – |
| Q3 2021 | $1,000 | – | 57 | +375.0% | 0.00% | – |
| Q2 2021 | $0 | – | 12 | -14.3% | 0.00% | – |
| Q4 2019 | $0 | -100.0% | 14 | -72.0% | 0.00% | – |
| Q3 2019 | $1,000 | – | 50 | +316.7% | 0.00% | – |
| Q2 2019 | $0 | – | 12 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EAM Investors, LLC | 173,018 | $3,187,000 | 0.42% |
| GLOBEFLEX CAPITAL L P | 50,686 | $934,000 | 0.23% |
| KALMAR INVESTMENTS INC /DE/ | 240,648 | $4,433,000 | 0.23% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 63,661 | $1,173,000 | 0.19% |
| OBERWEIS ASSET MANAGEMENT INC/ | 27,200 | $501,000 | 0.15% |
| Invictus RG | 11,950 | $220,000 | 0.15% |
| ACADIAN ASSET MANAGEMENT LLC | 1,502,151 | $27,668,000 | 0.13% |
| FOX RUN MANAGEMENT, L.L.C. | 12,600 | $232,000 | 0.12% |
| Piermont Capital Management Inc. | 26,153 | $482,000 | 0.11% |
| FEDERATED HERMES, INC. | 1,344,684 | $24,769,000 | 0.07% |