AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 213 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is 0.26 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,828,484 | -39.2% | 83,246 | -24.1% | 0.03% | -35.6% |
| Q2 2023 | $6,301,413 | +8.5% | 109,647 | -29.2% | 0.04% | +2.3% |
| Q1 2023 | $5,807,550 | -7.1% | 154,868 | -30.6% | 0.04% | -8.3% |
| Q4 2022 | $6,252,887 | -1.2% | 223,158 | -0.9% | 0.05% | -7.7% |
| Q3 2022 | $6,327,000 | -21.4% | 225,156 | -2.6% | 0.05% | -14.8% |
| Q2 2022 | $8,046,000 | -7.3% | 231,276 | -4.3% | 0.06% | +8.9% |
| Q1 2022 | $8,677,000 | +1.0% | 241,701 | -34.5% | 0.06% | +3.7% |
| Q4 2021 | $8,593,000 | +22.5% | 368,951 | 0.0% | 0.05% | +14.9% |
| Q3 2021 | $7,014,000 | -7.8% | 368,951 | -2.3% | 0.05% | -6.0% |
| Q2 2021 | $7,609,000 | +41.5% | 377,455 | +28.6% | 0.05% | +38.9% |
| Q1 2021 | $5,378,000 | -19.6% | 293,582 | -11.8% | 0.04% | -26.5% |
| Q4 2020 | $6,693,000 | +27.1% | 332,797 | +18.4% | 0.05% | +8.9% |
| Q3 2020 | $5,268,000 | -18.1% | 280,980 | -1.9% | 0.04% | -21.1% |
| Q2 2020 | $6,431,000 | +48.7% | 286,320 | -1.7% | 0.06% | +23.9% |
| Q1 2020 | $4,324,000 | -25.3% | 291,352 | -3.0% | 0.05% | +2.2% |
| Q4 2019 | $5,792,000 | +26.4% | 300,270 | +30.0% | 0.04% | +18.4% |
| Q3 2019 | $4,582,000 | – | 231,041 | – | 0.04% | – |
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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% |