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 | $1,171,687 | -52.1% | 25,477 | -40.1% | 0.01% | -47.4% |
| Q2 2023 | $2,446,096 | +63.4% | 42,563 | +6.6% | 0.02% | +46.2% |
| Q1 2023 | $1,496,850 | +132364.6% | 39,916 | -1.1% | 0.01% | +30.0% |
| Q4 2022 | $1,130 | -99.9% | 40,346 | +15.8% | 0.01% | 0.0% |
| Q3 2022 | $979,000 | -17.9% | 34,834 | +1.6% | 0.01% | -23.1% |
| Q2 2022 | $1,192,000 | +4.6% | 34,275 | +7.9% | 0.01% | +18.2% |
| Q1 2022 | $1,140,000 | +75.7% | 31,763 | +14.1% | 0.01% | +57.1% |
| Q4 2021 | $649,000 | +21.8% | 27,847 | -0.7% | 0.01% | +16.7% |
| Q3 2021 | $533,000 | -6.0% | 28,042 | -0.4% | 0.01% | 0.0% |
| Q2 2021 | $567,000 | +9.7% | 28,148 | -0.2% | 0.01% | 0.0% |
| Q1 2021 | $517,000 | -9.3% | 28,209 | -0.4% | 0.01% | -25.0% |
| Q4 2020 | $570,000 | +7.1% | 28,335 | -0.1% | 0.01% | -20.0% |
| Q3 2020 | $532,000 | +39.6% | 28,373 | +67.1% | 0.01% | +42.9% |
| Q2 2020 | $381,000 | +48.8% | 16,976 | -1.5% | 0.01% | +16.7% |
| Q1 2020 | $256,000 | +14.3% | 17,240 | +48.4% | 0.01% | +50.0% |
| Q4 2019 | $224,000 | -3.4% | 11,616 | -0.7% | 0.00% | 0.0% |
| Q3 2019 | $232,000 | -9.0% | 11,693 | -3.3% | 0.00% | 0.0% |
| Q2 2019 | $255,000 | +5.4% | 12,089 | +1.9% | 0.00% | 0.0% |
| Q1 2019 | $242,000 | +2.5% | 11,866 | +0.1% | 0.00% | -20.0% |
| Q4 2018 | $236,000 | – | 11,855 | – | 0.01% | – |
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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% |