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 | $25,517,552 | +15.9% | 554,850 | +44.8% | 0.15% | +18.9% |
| Q2 2023 | $22,022,964 | +364.7% | 383,208 | +203.2% | 0.13% | +337.9% |
| Q1 2023 | $4,739,288 | -11.3% | 126,381 | -33.7% | 0.03% | -19.4% |
| Q4 2022 | $5,342,630 | +1.1% | 190,672 | +1.4% | 0.04% | -14.3% |
| Q3 2022 | $5,284,000 | -18.8% | 188,039 | +0.5% | 0.04% | -16.0% |
| Q2 2022 | $6,510,000 | +61.2% | 187,129 | +66.3% | 0.05% | +85.2% |
| Q1 2022 | $4,039,000 | -7.4% | 112,516 | -39.9% | 0.03% | -6.9% |
| Q4 2021 | $4,363,000 | +14.1% | 187,329 | -6.9% | 0.03% | +11.5% |
| Q3 2021 | $3,823,000 | -0.2% | 201,128 | +5.8% | 0.03% | 0.0% |
| Q2 2021 | $3,832,000 | +68.4% | 190,077 | +53.0% | 0.03% | +44.4% |
| Q1 2021 | $2,276,000 | -15.6% | 124,230 | -7.4% | 0.02% | -25.0% |
| Q4 2020 | $2,697,000 | -11.7% | 134,116 | -17.7% | 0.02% | -25.0% |
| Q3 2020 | $3,055,000 | -21.6% | 162,927 | -6.1% | 0.03% | -23.8% |
| Q2 2020 | $3,898,000 | +53.3% | 173,572 | +1.3% | 0.04% | +27.3% |
| Q1 2020 | $2,542,000 | -26.6% | 171,266 | -4.6% | 0.03% | -2.9% |
| Q4 2019 | $3,465,000 | -1.5% | 179,605 | +1.3% | 0.03% | -20.9% |
| Q3 2019 | $3,516,000 | +144.5% | 177,321 | +160.3% | 0.04% | +115.0% |
| Q2 2019 | $1,438,000 | -3.5% | 68,132 | -6.6% | 0.02% | -9.1% |
| Q1 2019 | $1,490,000 | +111.9% | 72,953 | +106.5% | 0.02% | +83.3% |
| Q4 2018 | $703,000 | +3.4% | 35,325 | 0.0% | 0.01% | +20.0% |
| Q3 2018 | $680,000 | – | 35,325 | – | 0.01% | – |
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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% |