AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 145 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $9,210,739 | +21.8% | 200,277 | +52.2% | 0.01% | +16.7% |
| Q2 2023 | $7,563,569 | +66.2% | 131,609 | +8.9% | 0.01% | +50.0% |
| Q1 2023 | $4,551,327 | +318.6% | 120,821 | +211.4% | 0.00% | +300.0% |
| Q4 2022 | $1,087,176 | -30.9% | 38,800 | -30.7% | 0.00% | 0.0% |
| Q3 2022 | $1,573,000 | -0.2% | 55,980 | +23.6% | 0.00% | 0.0% |
| Q2 2022 | $1,576,000 | -43.9% | 45,293 | -42.1% | 0.00% | -50.0% |
| Q1 2022 | $2,808,000 | +28.9% | 78,230 | -16.3% | 0.00% | +100.0% |
| Q4 2021 | $2,178,000 | +36.0% | 93,512 | +11.0% | 0.00% | 0.0% |
| Q3 2021 | $1,601,000 | -14.9% | 84,221 | -9.7% | 0.00% | 0.0% |
| Q2 2021 | $1,881,000 | +302.8% | 93,288 | +222.0% | 0.00% | 0.0% |
| Q2 2016 | $467,000 | – | 28,967 | – | 0.00% | – |
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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% |