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 | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $3,453,000 | +18.1% | 187,464 | +21.7% | 0.00% | 0.0% |
| Q3 2016 | $2,923,000 | +31.1% | 154,096 | +11.4% | 0.00% | +33.3% |
| Q2 2016 | $2,230,000 | +56.4% | 138,352 | +16.4% | 0.00% | +50.0% |
| Q1 2016 | $1,426,000 | -15.3% | 118,845 | +0.5% | 0.00% | 0.0% |
| Q4 2015 | $1,683,000 | +21.7% | 118,254 | -0.0% | 0.00% | 0.0% |
| Q3 2015 | $1,383,000 | -33.3% | 118,284 | +0.2% | 0.00% | -33.3% |
| Q2 2015 | $2,075,000 | +408.6% | 118,046 | +332.8% | 0.00% | +200.0% |
| Q1 2015 | $408,000 | +36.5% | 27,277 | +5.8% | 0.00% | – |
| Q4 2014 | $299,000 | +1.7% | 25,774 | +2.2% | 0.00% | – |
| Q3 2014 | $294,000 | – | 25,223 | – | 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% |