AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 111 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $329,928 | +14.3% | 7,163 | -30.9% | 0.00% | – |
| Q4 2022 | $288,745 | +24.5% | 10,370 | +28.1% | 0.00% | – |
| Q3 2022 | $232,000 | -11.8% | 8,093 | +6.7% | 0.00% | – |
| Q2 2022 | $263,000 | -14.6% | 7,588 | -9.8% | 0.00% | – |
| Q1 2022 | $308,000 | -26.7% | 8,416 | -61.2% | 0.00% | – |
| Q3 2021 | $420,000 | -3.4% | 21,718 | 0.0% | 0.00% | – |
| Q2 2021 | $435,000 | +3.6% | 21,718 | -5.3% | 0.00% | – |
| Q1 2021 | $420,000 | -13.4% | 22,933 | -5.7% | 0.00% | -100.0% |
| Q4 2020 | $485,000 | +5.4% | 24,313 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $460,000 | -13.2% | 24,313 | +3.0% | 0.00% | 0.0% |
| Q2 2020 | $530,000 | +107.8% | 23,597 | +36.1% | 0.00% | 0.0% |
| Q1 2020 | $255,000 | +6.2% | 17,332 | +39.4% | 0.00% | – |
| Q4 2019 | $240,000 | -57.6% | 12,430 | -56.4% | 0.00% | -100.0% |
| Q3 2019 | $566,000 | – | 28,523 | – | 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% |