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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $373,546 | -24.4% | 7,992 | -6.4% | 0.00% | – |
| Q2 2023 | $494,319 | +132.5% | 8,536 | +15.1% | 0.00% | – |
| Q4 2022 | $212,634 | -4.2% | 7,414 | +8.8% | 0.00% | – |
| Q3 2022 | $222,000 | -0.4% | 6,816 | +4.9% | 0.00% | – |
| Q2 2022 | $223,000 | -53.2% | 6,495 | -50.1% | 0.00% | – |
| Q1 2022 | $477,000 | +60.1% | 13,029 | +2.9% | 0.00% | – |
| Q4 2021 | $298,000 | +6.8% | 12,658 | -11.6% | 0.00% | – |
| Q3 2021 | $279,000 | -15.7% | 14,317 | -9.8% | 0.00% | – |
| Q2 2021 | $331,000 | +61.5% | 15,868 | +37.2% | 0.00% | – |
| Q1 2021 | $205,000 | -5.5% | 11,569 | +3.9% | 0.00% | – |
| Q4 2020 | $217,000 | -91.9% | 11,132 | -91.6% | 0.00% | -100.0% |
| Q3 2020 | $2,680,000 | -6.1% | 132,595 | -3.2% | 0.00% | -33.3% |
| Q2 2020 | $2,853,000 | +65.5% | 137,002 | +17.4% | 0.00% | +50.0% |
| Q1 2020 | $1,724,000 | -26.8% | 116,732 | -4.4% | 0.00% | 0.0% |
| Q4 2019 | $2,355,000 | +105.9% | 122,074 | +111.6% | 0.00% | +100.0% |
| Q3 2019 | $1,144,000 | +1000.0% | 57,700 | +1072.0% | 0.00% | – |
| Q2 2019 | $104,000 | +141.9% | 4,923 | +130.7% | 0.00% | – |
| Q1 2019 | $43,000 | -12.2% | 2,134 | -12.7% | 0.00% | – |
| Q4 2018 | $49,000 | +16.7% | 2,445 | +12.0% | 0.00% | – |
| Q3 2018 | $42,000 | +27.3% | 2,184 | -0.3% | 0.00% | – |
| Q2 2018 | $33,000 | -5.7% | 2,191 | +17.4% | 0.00% | – |
| Q1 2018 | $35,000 | -62.4% | 1,867 | -61.6% | 0.00% | – |
| Q4 2017 | $93,000 | -92.5% | 4,867 | -93.0% | 0.00% | -100.0% |
| Q3 2017 | $1,245,000 | +0.1% | 69,649 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $1,244,000 | +1297.8% | 69,649 | +1032.9% | 0.00% | – |
| Q1 2017 | $89,000 | -97.6% | 6,148 | -96.6% | 0.00% | -100.0% |
| Q4 2016 | $3,696,000 | +134.4% | 182,305 | +119.3% | 0.00% | +100.0% |
| Q3 2016 | $1,577,000 | +440.1% | 83,120 | +358.7% | 0.00% | – |
| Q2 2016 | $292,000 | +311.3% | 18,120 | +204.2% | 0.00% | – |
| Q1 2016 | $71,000 | +6.0% | 5,956 | +26.7% | 0.00% | – |
| Q4 2015 | $67,000 | -73.0% | 4,700 | -77.8% | 0.00% | – |
| Q3 2015 | $248,000 | -18.4% | 21,172 | +22.4% | 0.00% | – |
| Q2 2015 | $304,000 | +86.5% | 17,292 | +58.8% | 0.00% | – |
| Q1 2015 | $163,000 | +608.7% | 10,886 | +444.3% | 0.00% | – |
| Q4 2014 | $23,000 | 0.0% | 2,000 | 0.0% | 0.00% | – |
| Q3 2014 | $23,000 | – | 2,000 | – | 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% |