AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,166,129 | -43.6% | 47,100 | -29.5% | 0.02% | -38.5% |
| Q2 2023 | $3,841,065 | +54.5% | 66,836 | +0.8% | 0.03% | +44.4% |
| Q1 2023 | $2,486,325 | +29.4% | 66,302 | -3.3% | 0.02% | +20.0% |
| Q4 2022 | $1,921,724 | +97499.0% | 68,584 | -2.1% | 0.02% | -11.8% |
| Q3 2022 | $1,969 | -99.9% | 70,079 | +0.7% | 0.02% | -15.0% |
| Q2 2022 | $2,421,000 | -1.9% | 69,602 | +1.2% | 0.02% | +33.3% |
| Q1 2022 | $2,469,000 | +41.4% | 68,772 | -8.2% | 0.02% | +66.7% |
| Q4 2021 | $1,746,000 | -0.3% | 74,952 | -18.6% | 0.01% | -10.0% |
| Q3 2021 | $1,751,000 | +15.9% | 92,089 | +22.9% | 0.01% | +11.1% |
| Q2 2021 | $1,511,000 | -17.4% | 74,952 | -24.9% | 0.01% | -25.0% |
| Q1 2021 | $1,829,000 | -13.9% | 99,854 | -5.5% | 0.01% | -25.0% |
| Q4 2020 | $2,125,000 | +40.0% | 105,654 | +30.5% | 0.02% | +33.3% |
| Q3 2020 | $1,518,000 | -10.4% | 80,952 | +7.3% | 0.01% | -25.0% |
| Q2 2020 | $1,694,000 | +48.9% | 75,412 | -1.7% | 0.02% | +23.1% |
| Q1 2020 | $1,138,000 | -23.1% | 76,712 | 0.0% | 0.01% | +44.4% |
| Q4 2019 | $1,480,000 | -14.7% | 76,712 | -12.3% | 0.01% | -25.0% |
| Q3 2019 | $1,735,000 | +5.7% | 87,512 | +12.5% | 0.01% | -7.7% |
| Q2 2019 | $1,642,000 | +164.4% | 77,800 | +155.9% | 0.01% | +116.7% |
| Q1 2019 | $621,000 | +2.6% | 30,400 | 0.0% | 0.01% | +20.0% |
| Q4 2018 | $605,000 | +27.4% | 30,400 | +23.1% | 0.01% | +66.7% |
| Q3 2018 | $475,000 | +37.3% | 24,700 | +8.8% | 0.00% | +50.0% |
| Q2 2018 | $346,000 | -18.8% | 22,698 | 0.0% | 0.00% | -33.3% |
| Q1 2018 | $426,000 | -2.5% | 22,698 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $437,000 | +7.6% | 22,698 | 0.0% | 0.00% | +50.0% |
| Q3 2017 | $406,000 | +23.0% | 22,698 | +22.7% | 0.00% | -33.3% |
| Q2 2017 | $330,000 | -9.1% | 18,500 | -26.0% | 0.00% | 0.0% |
| Q1 2017 | $363,000 | -21.3% | 25,000 | 0.0% | 0.00% | -25.0% |
| Q4 2016 | $461,000 | -2.7% | 25,000 | 0.0% | 0.00% | -20.0% |
| Q3 2016 | $474,000 | – | 25,000 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 29,423 | $583,000 | 0.44% |
| Matarin Capital Management, LLC | 223,184 | $4,426,000 | 0.34% |
| Summit Global Investments | 42,725 | $847,000 | 0.10% |
| FEDERATED HERMES, INC. | 1,747,921 | $34,661,000 | 0.08% |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | 347,307 | $6,887,000 | 0.08% |
| MARSHALL WACE, LLP | 413,293 | $8,196,000 | 0.06% |
| BOSTON ADVISORS LLC | 42,365 | $840,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 214,444 | $4,254,000 | 0.04% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 177,321 | $3,516,000 | 0.04% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 231,041 | $4,582,000 | 0.04% |