AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $159 | 0.0% | 2,770 | 0.0% | 0.00% | 0.0% |
| Q2 2023 | $159 | +33.6% | 2,770 | -12.8% | 0.00% | 0.0% |
| Q1 2023 | $119 | +33.7% | 3,178 | 0.0% | 0.00% | – |
| Q4 2022 | $89 | -99.9% | 3,178 | 0.0% | 0.00% | – |
| Q3 2022 | $89,000 | -19.8% | 3,178 | 0.0% | 0.00% | -100.0% |
| Q2 2022 | $111,000 | -86.3% | 3,178 | -92.4% | 0.00% | -80.0% |
| Q4 2019 | $811,000 | -2.6% | 42,019 | 0.0% | 0.01% | -16.7% |
| Q3 2019 | $833,000 | -6.1% | 42,019 | 0.0% | 0.01% | -14.3% |
| Q2 2019 | $887,000 | -21.9% | 42,019 | -24.4% | 0.01% | -22.2% |
| Q1 2019 | $1,136,000 | +2.6% | 55,607 | 0.0% | 0.01% | -25.0% |
| Q4 2018 | $1,107,000 | -19.7% | 55,607 | -22.4% | 0.01% | +20.0% |
| Q3 2018 | $1,379,000 | +41.4% | 71,653 | +12.2% | 0.01% | +25.0% |
| Q2 2018 | $975,000 | -15.1% | 63,871 | +4.3% | 0.01% | -27.3% |
| Q1 2018 | $1,148,000 | +29.7% | 61,241 | +33.1% | 0.01% | +37.5% |
| Q4 2017 | $885,000 | +7.7% | 46,016 | 0.0% | 0.01% | +14.3% |
| Q3 2017 | $822,000 | 0.0% | 46,016 | 0.0% | 0.01% | -12.5% |
| Q2 2017 | $822,000 | +23.2% | 46,016 | 0.0% | 0.01% | +33.3% |
| Q1 2017 | $667,000 | +22.6% | 46,016 | +55.7% | 0.01% | +20.0% |
| Q4 2016 | $544,000 | – | 29,556 | – | 0.01% | – |
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% |