AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 221 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2022. The put-call ratio across all filers is 12.07 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,704,449 | -23.1% | 80,549 | -3.9% | 0.00% | -100.0% |
| Q2 2023 | $4,818,744 | +9.1% | 83,848 | -28.8% | 0.00% | 0.0% |
| Q1 2023 | $4,417,000 | +138450.8% | 117,767 | +3.5% | 0.00% | – |
| Q4 2022 | $3,188 | -99.9% | 113,753 | -48.2% | 0.00% | -100.0% |
| Q3 2022 | $6,174,000 | -18.3% | 219,683 | +1.2% | 0.00% | 0.0% |
| Q2 2022 | $7,555,000 | +137.8% | 217,156 | +145.5% | 0.00% | – |
| Q1 2022 | $3,177,000 | +23.5% | 88,468 | -19.9% | 0.00% | – |
| Q4 2021 | $2,573,000 | -22.1% | 110,515 | -36.4% | 0.00% | – |
| Q3 2021 | $3,301,000 | -10.0% | 173,690 | -4.6% | 0.00% | – |
| Q2 2021 | $3,668,000 | +345.7% | 181,995 | +305.2% | 0.00% | – |
| Q1 2021 | $823,000 | +41.2% | 44,911 | +55.0% | 0.00% | – |
| Q4 2020 | $583,000 | +130.4% | 28,974 | +113.3% | 0.00% | – |
| Q3 2020 | $253,000 | -7.3% | 13,583 | +11.6% | 0.00% | – |
| Q2 2020 | $273,000 | -35.3% | 12,175 | -57.1% | 0.00% | – |
| Q1 2020 | $422,000 | +87.6% | 28,379 | +143.6% | 0.00% | – |
| Q4 2019 | $225,000 | -3.4% | 11,652 | -0.9% | 0.00% | – |
| Q3 2019 | $233,000 | +13.7% | 11,763 | +19.3% | 0.00% | – |
| Q2 2019 | $205,000 | +17.1% | 9,856 | +15.4% | 0.00% | – |
| Q1 2019 | $175,000 | -93.4% | 8,542 | -93.6% | 0.00% | -100.0% |
| Q4 2018 | $2,664,000 | +12.1% | 133,838 | +8.3% | 0.00% | – |
| Q3 2018 | $2,377,000 | -32.8% | 123,581 | -46.7% | 0.00% | -100.0% |
| Q2 2018 | $3,538,000 | -36.2% | 231,823 | -21.6% | 0.00% | 0.0% |
| Q1 2018 | $5,545,000 | -35.6% | 295,724 | -33.9% | 0.00% | -50.0% |
| Q4 2017 | $8,608,000 | +22.3% | 447,410 | +13.7% | 0.00% | 0.0% |
| Q3 2017 | $7,037,000 | -3.1% | 393,375 | -3.3% | 0.00% | 0.0% |
| Q2 2017 | $7,263,000 | -3.3% | 406,625 | -21.5% | 0.00% | 0.0% |
| Q1 2017 | $7,510,000 | -20.5% | 517,900 | +1.0% | 0.00% | 0.0% |
| Q4 2016 | $9,445,000 | +16.3% | 512,773 | +19.8% | 0.00% | 0.0% |
| Q3 2016 | $8,123,000 | +16.1% | 428,190 | -1.4% | 0.00% | 0.0% |
| Q2 2016 | $6,999,000 | +46.5% | 434,207 | +9.1% | 0.00% | +100.0% |
| Q1 2016 | $4,776,000 | -37.9% | 397,953 | -26.4% | 0.00% | -50.0% |
| Q4 2015 | $7,696,000 | +53.9% | 540,825 | +26.4% | 0.00% | +100.0% |
| Q3 2015 | $5,002,000 | -37.6% | 427,900 | -6.2% | 0.00% | -50.0% |
| Q2 2015 | $8,022,000 | -13.1% | 456,367 | -26.0% | 0.00% | 0.0% |
| Q1 2015 | $9,230,000 | +14.2% | 616,950 | -11.3% | 0.00% | 0.0% |
| Q4 2014 | $8,080,000 | -7.4% | 695,914 | -7.1% | 0.00% | 0.0% |
| Q3 2014 | $8,730,000 | – | 749,325 | – | 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% |