AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 130 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,488,420 | -21.9% | 32,364 | -2.4% | 0.02% | -16.7% |
| Q2 2023 | $1,905,303 | +50.3% | 33,153 | -1.9% | 0.02% | +38.5% |
| Q1 2023 | $1,267,800 | +178463.4% | 33,808 | +33.4% | 0.01% | +18.2% |
| Q4 2022 | $710 | -99.9% | 25,344 | -7.8% | 0.01% | -8.3% |
| Q3 2022 | $773,000 | -18.2% | 27,499 | +1.2% | 0.01% | -20.0% |
| Q2 2022 | $945,000 | +0.7% | 27,176 | +4.0% | 0.02% | +15.4% |
| Q1 2022 | $938,000 | +51.5% | 26,120 | -1.7% | 0.01% | +62.5% |
| Q4 2021 | $619,000 | +19.0% | 26,562 | -2.9% | 0.01% | +33.3% |
| Q3 2021 | $520,000 | -5.6% | 27,359 | +0.1% | 0.01% | 0.0% |
| Q2 2021 | $551,000 | +10.0% | 27,334 | +0.0% | 0.01% | 0.0% |
| Q1 2021 | $501,000 | -15.2% | 27,327 | -7.0% | 0.01% | -14.3% |
| Q4 2020 | $591,000 | -7.7% | 29,370 | -14.0% | 0.01% | -22.2% |
| Q3 2020 | $640,000 | +7.0% | 34,154 | +28.2% | 0.01% | -10.0% |
| Q2 2020 | $598,000 | +38.4% | 26,645 | -8.5% | 0.01% | +25.0% |
| Q1 2020 | $432,000 | -4.4% | 29,125 | +24.3% | 0.01% | +14.3% |
| Q4 2019 | $452,000 | -2.8% | 23,437 | -0.1% | 0.01% | 0.0% |
| Q3 2019 | $465,000 | -8.1% | 23,465 | -2.0% | 0.01% | -12.5% |
| Q2 2019 | $506,000 | +5.4% | 23,956 | +2.0% | 0.01% | 0.0% |
| Q1 2019 | $480,000 | +6.7% | 23,475 | +3.8% | 0.01% | 0.0% |
| Q4 2018 | $450,000 | +7.1% | 22,624 | +3.6% | 0.01% | +33.3% |
| Q3 2018 | $420,000 | +19.0% | 21,828 | -5.8% | 0.01% | +20.0% |
| Q2 2018 | $353,000 | -19.6% | 23,165 | -1.2% | 0.01% | -16.7% |
| Q1 2018 | $439,000 | -4.6% | 23,437 | -2.1% | 0.01% | 0.0% |
| Q4 2017 | $460,000 | -0.9% | 23,931 | -7.8% | 0.01% | 0.0% |
| Q3 2017 | $464,000 | -0.2% | 25,968 | -0.3% | 0.01% | 0.0% |
| Q2 2017 | $465,000 | +23.3% | 26,047 | +0.2% | 0.01% | +20.0% |
| Q1 2017 | $377,000 | -21.8% | 25,991 | -0.7% | 0.01% | -16.7% |
| Q4 2016 | $482,000 | -5.3% | 26,183 | -2.4% | 0.01% | -14.3% |
| Q3 2016 | $509,000 | – | 26,831 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| FRIESS ASSOCIATES LLC | 97,760 | $3,401,000 | 5.68% |
| Nantahala Capital Management | 1,000,000 | $34,790,000 | 1.74% |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income | 341,294 | $11,874,000 | 1.52% |
| Portolan Capital Management | 274,889 | $9,563,000 | 0.96% |
| Quantedge Capital Pte Ltd | 121,500 | $4,227,000 | 0.85% |
| SHAKER INVESTMENTS LLC/OH | 37,117 | $1,291,000 | 0.82% |
| GLOBEFLEX CAPITAL L P | 72,253 | $2,514,000 | 0.61% |
| EAM Investors, LLC | 68,855 | $2,395,000 | 0.58% |
| Hillsdale Investment Management Inc. | 197,738 | $6,879,000 | 0.55% |
| Capital Impact Advisors, LLC | 13,835 | $481,000 | 0.44% |