AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 250 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 1.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,092,361 | -18.4% | 45,496 | +2.0% | 0.10% | -13.5% |
| Q2 2023 | $2,563,679 | +45.9% | 44,609 | -4.8% | 0.11% | +37.0% |
| Q1 2023 | $1,757,213 | +40.6% | 46,859 | +5.1% | 0.08% | +32.8% |
| Q4 2022 | $1,249,580 | +0.2% | 44,596 | +0.5% | 0.06% | -9.0% |
| Q3 2022 | $1,247,000 | -16.5% | 44,364 | +3.3% | 0.07% | -13.0% |
| Q2 2022 | $1,494,000 | -14.8% | 42,939 | -12.1% | 0.08% | -2.5% |
| Q1 2022 | $1,753,000 | +18.4% | 48,833 | -23.2% | 0.08% | +31.7% |
| Q4 2021 | $1,480,000 | +28.0% | 63,559 | +4.5% | 0.06% | +20.0% |
| Q3 2021 | $1,156,000 | -7.2% | 60,819 | -1.6% | 0.05% | -3.8% |
| Q2 2021 | $1,246,000 | – | 61,827 | – | 0.05% | – |
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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% |