AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $844,929 | -1.0% | 18,372 | +23.7% | 0.00% | – |
| Q2 2023 | $853,315 | -1.0% | 14,848 | -35.4% | 0.00% | – |
| Q1 2023 | $862,126 | +80.2% | 22,990 | +34.6% | 0.00% | – |
| Q4 2022 | $478,414 | +10.2% | 17,074 | +10.5% | 0.00% | – |
| Q3 2022 | $434,000 | -54.7% | 15,450 | -43.9% | 0.00% | – |
| Q2 2022 | $958,000 | -4.4% | 27,536 | -1.3% | 0.00% | – |
| Q1 2022 | $1,002,000 | +220.1% | 27,889 | +107.8% | 0.00% | – |
| Q4 2021 | $313,000 | +77.8% | 13,418 | +44.9% | 0.00% | – |
| Q3 2021 | $176,000 | -71.7% | 9,260 | -70.0% | 0.00% | – |
| Q2 2021 | $623,000 | -19.0% | 30,887 | -26.4% | 0.00% | – |
| Q1 2021 | $769,000 | -11.1% | 41,943 | -2.4% | 0.00% | – |
| Q4 2020 | $865,000 | +170.3% | 42,981 | +152.1% | 0.00% | – |
| Q3 2020 | $320,000 | -59.9% | 17,051 | -52.0% | 0.00% | – |
| Q2 2020 | $798,000 | +74.2% | 35,542 | +15.1% | 0.00% | – |
| Q1 2020 | $458,000 | -63.7% | 30,879 | -52.8% | 0.00% | – |
| Q4 2019 | $1,262,000 | +0.3% | 65,464 | +3.1% | 0.00% | – |
| Q3 2019 | $1,258,000 | +12.8% | 63,468 | +20.1% | 0.00% | – |
| Q2 2019 | $1,115,000 | +27.7% | 52,836 | +23.7% | 0.00% | – |
| Q1 2019 | $873,000 | +214.0% | 42,726 | +205.3% | 0.00% | – |
| Q4 2018 | $278,000 | -3.8% | 13,996 | -6.9% | 0.00% | – |
| Q3 2018 | $289,000 | +489.8% | 15,033 | +364.7% | 0.00% | – |
| Q2 2018 | $49,000 | -62.6% | 3,235 | -53.4% | 0.00% | – |
| Q1 2018 | $131,000 | +3.1% | 6,947 | +5.3% | 0.00% | – |
| Q4 2017 | $127,000 | +54.9% | 6,595 | +44.5% | 0.00% | – |
| Q3 2017 | $82,000 | -38.8% | 4,565 | -39.4% | 0.00% | – |
| Q2 2017 | $134,000 | -1.5% | 7,529 | -19.5% | 0.00% | – |
| Q1 2017 | $136,000 | -21.8% | 9,349 | -1.3% | 0.00% | – |
| Q4 2016 | $174,000 | -33.1% | 9,474 | -30.8% | 0.00% | – |
| Q3 2016 | $260,000 | +134.2% | 13,700 | +98.6% | 0.00% | – |
| Q2 2016 | $111,000 | -52.6% | 6,900 | -64.6% | 0.00% | – |
| Q1 2016 | $234,000 | -19.9% | 19,500 | -5.2% | 0.00% | – |
| Q4 2015 | $292,000 | +1068.0% | 20,574 | +859.2% | 0.00% | – |
| Q3 2015 | $25,000 | +177.8% | 2,145 | +329.0% | 0.00% | – |
| Q2 2015 | $9,000 | -85.9% | 500 | -88.3% | 0.00% | – |
| Q1 2015 | $64,000 | +2033.3% | 4,273 | +1765.9% | 0.00% | – |
| Q4 2014 | $3,000 | – | 229 | – | 0.00% | – |
Download | ||||||
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% |