AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 45 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2014. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $1,193,000 | -14.2% | 83,900 | -29.6% | 0.15% | -16.0% |
| Q3 2015 | $1,391,000 | -33.6% | 119,200 | 0.0% | 0.18% | -38.2% |
| Q2 2015 | $2,094,000 | +17.6% | 119,200 | 0.0% | 0.29% | +17.7% |
| Q1 2015 | $1,780,000 | +312.0% | 119,200 | +219.3% | 0.25% | +241.1% |
| Q4 2014 | $432,000 | +75.6% | 37,334 | +76.1% | 0.07% | +97.3% |
| Q3 2014 | $246,000 | – | 21,200 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |