AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 91 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $819 | -99.9% | 21,852 | -36.5% | 0.08% | -22.9% |
| Q1 2021 | $631,000 | +25.2% | 34,425 | +4.3% | 0.10% | +320.0% |
| Q2 2018 | $504,000 | +26.0% | 33,000 | +47.3% | 0.02% | -7.4% |
| Q3 2017 | $400,000 | -61.6% | 22,400 | -60.4% | 0.03% | -56.5% |
| Q4 2016 | $1,042,000 | +203.8% | 56,544 | +212.4% | 0.06% | +244.4% |
| Q3 2016 | $343,000 | +109.1% | 18,100 | +57.4% | 0.02% | +125.0% |
| Q4 2015 | $164,000 | +12.3% | 11,500 | -7.9% | 0.01% | +14.3% |
| Q3 2015 | $146,000 | -32.1% | 12,486 | -13.3% | 0.01% | -22.2% |
| Q1 2015 | $215,000 | -38.9% | 14,400 | -52.5% | 0.01% | -64.0% |
| Q4 2014 | $352,000 | – | 30,300 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $3,649,605 | 3.75% |
| SHAKER INVESTMENTS LLC/OH | 81,287 | $2,277,662 | 1.41% |
| Mesirow Institutional Investment Management, Inc. | 374,414 | $10,491,080 | 1.38% |
| OBERWEIS ASSET MANAGEMENT INC/ | 134,000 | $3,754,680 | 0.80% |
| Portolan Capital Management | 270,791 | $7,587,564 | 0.75% |
| Hillsdale Investment Management Inc. | 172,238 | $4,826,109 | 0.41% |
| Capital Impact Advisors, LLC | 14,669 | $411,025 | 0.40% |
| Watershed Asset Management, L.L.C. | 9,555 | $267,731 | 0.34% |
| Quantedge Capital Pte Ltd | 35,153 | $984,987 | 0.33% |
| FEDERATED HERMES, INC. | 3,284,217 | $92,023,760 | 0.25% |