AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 167 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $1,321,238 | +14.9% | 35,233 | -14.2% | 0.23% | +17.1% |
| Q4 2022 | $1,150,109 | -0.3% | 41,046 | 0.0% | 0.20% | -8.7% |
| Q3 2022 | $1,153,000 | +10.1% | 41,046 | +36.3% | 0.22% | +19.8% |
| Q2 2022 | $1,047,000 | -37.9% | 30,107 | -35.9% | 0.18% | -3.7% |
| Q1 2022 | $1,687,000 | +22.8% | 46,995 | -20.3% | 0.19% | -5.0% |
| Q4 2021 | $1,374,000 | +25.4% | 58,975 | +2.3% | 0.20% | +59.2% |
| Q3 2021 | $1,096,000 | -16.3% | 57,649 | -11.2% | 0.12% | -13.8% |
| Q2 2021 | $1,309,000 | +30.5% | 64,924 | +18.6% | 0.14% | +29.5% |
| Q1 2021 | $1,003,000 | +157.2% | 54,751 | +163.4% | 0.11% | +103.6% |
| Q3 2020 | $390,000 | – | 20,790 | – | 0.06% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 128,000 | $5,886,720 | 5.78% |
| Beacon Harbor Wealth Advisors, Inc. | 103,095 | $4,741 | 1.58% |
| Capital Impact Advisors, LLC | 15,304 | $703,831 | 1.18% |
| Quantedge Capital Pte Ltd | 36,389 | $1,673,530 | 0.91% |
| Mesirow Institutional Investment Management, Inc. | 183,805 | $8,453,192 | 0.86% |
| Monashee Investment Management LLC | 39,461 | $1,814,811 | 0.76% |
| OBERWEIS ASSET MANAGEMENT INC/ | 152,500 | $7,013,475 | 0.74% |
| Granite Investment Partners, LLC | 330,911 | $15,218,597 | 0.64% |
| Portolan Capital Management | 132,850 | $6,109,772 | 0.57% |
| SHAKER INVESTMENTS LLC/OH | 20,795 | $956,362 | 0.53% |