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 | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $696,709 | -89.0% | 12,123 | -92.8% | 0.00% | -91.3% |
| Q1 2023 | $6,339,600 | +130317.6% | 169,056 | -2.5% | 0.02% | +27.8% |
| Q4 2022 | $4,861 | -99.9% | 173,479 | +19.5% | 0.02% | +12.5% |
| Q3 2022 | $4,081,000 | -72.0% | 145,216 | -65.3% | 0.02% | -70.4% |
| Q2 2022 | $14,578,000 | -5.0% | 419,017 | -2.0% | 0.05% | +25.6% |
| Q1 2022 | $15,351,000 | +24.9% | 427,605 | -19.0% | 0.04% | +19.4% |
| Q4 2021 | $12,290,000 | +263.6% | 527,678 | +196.8% | 0.04% | +227.3% |
| Q3 2021 | $3,380,000 | -11.8% | 177,803 | -6.4% | 0.01% | -15.4% |
| Q2 2021 | $3,831,000 | +30.5% | 190,017 | +18.6% | 0.01% | +8.3% |
| Q1 2021 | $2,936,000 | +123.8% | 160,247 | +143.1% | 0.01% | -20.0% |
| Q4 2018 | $1,312,000 | – | 65,926 | – | 0.02% | – |
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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% |