AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 133 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $229,000 | +10.1% | 11,556 | +17.2% | 0.01% | -8.3% |
| Q2 2019 | $208,000 | -34.6% | 9,856 | -42.0% | 0.01% | -7.7% |
| Q1 2018 | $318,000 | +10.8% | 16,984 | +5.5% | 0.01% | -13.3% |
| Q2 2017 | $287,000 | +28.7% | 16,100 | -13.5% | 0.02% | +50.0% |
| Q1 2016 | $223,000 | -27.1% | 18,620 | -13.5% | 0.01% | -33.3% |
| Q4 2015 | $306,000 | +33.0% | 21,520 | +9.1% | 0.02% | +66.7% |
| Q3 2015 | $230,000 | -25.3% | 19,720 | -4.4% | 0.01% | -18.2% |
| Q1 2015 | $308,000 | – | 20,621 | – | 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% |