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 | $1,233,866 | -28.2% | 26,829 | -10.2% | 0.01% | -27.8% |
| Q2 2023 | $1,717,606 | +1.6% | 29,887 | -33.7% | 0.02% | -5.3% |
| Q1 2023 | $1,690,275 | +23.3% | 45,074 | -7.8% | 0.02% | +18.8% |
| Q4 2022 | $1,370,486 | -0.6% | 48,911 | -0.4% | 0.02% | -11.1% |
| Q3 2022 | $1,379,000 | -21.2% | 49,090 | -2.5% | 0.02% | -18.2% |
| Q2 2022 | $1,751,000 | -4.6% | 50,339 | -1.6% | 0.02% | +10.0% |
| Q1 2022 | $1,836,000 | +3364.2% | 51,134 | +1604.5% | 0.02% | +1900.0% |
| Q2 2017 | $53,000 | +15.2% | 3,000 | -5.5% | 0.00% | 0.0% |
| Q1 2017 | $46,000 | -72.1% | 3,175 | -64.6% | 0.00% | -75.0% |
| Q4 2016 | $165,000 | -2.9% | 8,975 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $170,000 | +18.1% | 8,975 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $144,000 | +26.3% | 8,975 | -5.8% | 0.00% | 0.0% |
| Q1 2016 | $114,000 | -6.6% | 9,525 | +10.4% | 0.00% | 0.0% |
| Q4 2015 | $122,000 | +2340.0% | 8,625 | +1816.7% | 0.00% | – |
| Q3 2015 | $5,000 | -28.6% | 450 | 0.0% | 0.00% | – |
| Q2 2015 | $7,000 | – | 450 | – | 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% |