AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $5,855,723 | -30.2% | 127,326 | -12.7% | 0.06% | -20.0% |
| Q2 2023 | $8,384,643 | +19.5% | 145,896 | -22.0% | 0.08% | +9.6% |
| Q1 2023 | $7,014,750 | +22.7% | 187,060 | -8.3% | 0.07% | +17.7% |
| Q4 2022 | $5,715,267 | -0.6% | 203,971 | -0.3% | 0.06% | -7.5% |
| Q3 2022 | $5,749,000 | -19.7% | 204,573 | -0.5% | 0.07% | -18.3% |
| Q2 2022 | $7,155,000 | -20.7% | 205,663 | -18.2% | 0.08% | 0.0% |
| Q1 2022 | $9,021,000 | +53.6% | 251,272 | -0.4% | 0.08% | +78.3% |
| Q4 2021 | $5,874,000 | +20.8% | 252,208 | -1.4% | 0.05% | +21.1% |
| Q3 2021 | $4,863,000 | +30.4% | 255,813 | +38.3% | 0.04% | +40.7% |
| Q2 2021 | $3,729,000 | – | 184,979 | – | 0.03% | – |
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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% |