AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 119 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2017. The put-call ratio across all filers is 1.48 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,233,538 | -29.0% | 26,822 | -11.2% | 0.00% | – |
| Q2 2023 | $1,736,520 | -23.2% | 30,216 | -49.9% | 0.00% | – |
| Q1 2023 | $2,261,626 | +175.4% | 60,310 | +105.8% | 0.00% | – |
| Q4 2022 | $821,210 | -0.2% | 29,308 | +0.1% | 0.00% | – |
| Q3 2022 | $823,000 | -19.8% | 29,276 | -0.8% | 0.00% | – |
| Q2 2022 | $1,026,000 | -3.6% | 29,507 | -0.4% | 0.00% | – |
| Q1 2022 | $1,064,000 | +35366.7% | 29,625 | +23600.0% | 0.00% | – |
| Q2 2021 | $3,000 | +50.0% | 125 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | +100.0% | 125 | +150.0% | 0.00% | – |
| Q3 2020 | $1,000 | – | 50 | +614.3% | 0.00% | – |
| Q1 2020 | $0 | – | 7 | 0.0% | 0.00% | – |
| Q4 2019 | $0 | -100.0% | 7 | -85.7% | 0.00% | – |
| Q3 2019 | $1,000 | -66.7% | 49 | -67.3% | 0.00% | – |
| Q1 2019 | $3,000 | -99.9% | 150 | -99.9% | 0.00% | – |
| Q4 2017 | $2,855,000 | -35.1% | 148,408 | -51.1% | 0.00% | -100.0% |
| Q1 2017 | $4,397,000 | -81.9% | 303,257 | -77.0% | 0.00% | -66.7% |
| Q4 2016 | $24,269,000 | -36.9% | 1,317,541 | -35.0% | 0.00% | -40.0% |
| Q3 2016 | $38,464,000 | -0.5% | 2,027,627 | -15.5% | 0.01% | 0.0% |
| Q2 2016 | $38,664,000 | +29.5% | 2,398,531 | -3.6% | 0.01% | +25.0% |
| Q1 2016 | $29,858,000 | -0.2% | 2,488,161 | +18.4% | 0.00% | 0.0% |
| Q4 2015 | $29,911,000 | +18.7% | 2,101,956 | -2.5% | 0.00% | 0.0% |
| Q3 2015 | $25,195,000 | -23.1% | 2,155,302 | +15.7% | 0.00% | 0.0% |
| Q2 2015 | $32,754,000 | +2089.4% | 1,863,161 | +1763.2% | 0.00% | – |
| Q1 2015 | $1,496,000 | +28.9% | 100,000 | 0.0% | 0.00% | – |
| Q4 2014 | $1,161,000 | -0.3% | 100,000 | 0.0% | 0.00% | – |
| Q3 2014 | $1,165,000 | – | 100,000 | – | 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% |