AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 213 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is 0.26 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,977,708 | +3.0% | 43,003 | +28.7% | 0.01% | +20.0% |
| Q2 2023 | $1,920,015 | +45.3% | 33,409 | -5.2% | 0.01% | +25.0% |
| Q1 2023 | $1,321,463 | +20.0% | 35,239 | -10.3% | 0.00% | 0.0% |
| Q4 2022 | $1,100,934 | +0.3% | 39,291 | +0.5% | 0.00% | +33.3% |
| Q3 2022 | $1,098,000 | -24.1% | 39,081 | -6.0% | 0.00% | -25.0% |
| Q2 2022 | $1,446,000 | -20.4% | 41,568 | -17.8% | 0.00% | 0.0% |
| Q1 2022 | $1,817,000 | +54.2% | 50,600 | 0.0% | 0.00% | +100.0% |
| Q4 2021 | $1,178,000 | +22.5% | 50,600 | 0.0% | 0.00% | 0.0% |
| Q3 2021 | $962,000 | -5.7% | 50,600 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $1,020,000 | +10.0% | 50,600 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $927,000 | -8.9% | 50,600 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $1,018,000 | -4.6% | 50,600 | -11.1% | 0.00% | -33.3% |
| Q3 2020 | $1,067,000 | -16.5% | 56,900 | 0.0% | 0.00% | -25.0% |
| Q2 2020 | $1,278,000 | +55.7% | 56,900 | +2.9% | 0.00% | +33.3% |
| Q1 2020 | $821,000 | -20.9% | 55,300 | +2.8% | 0.00% | 0.0% |
| Q4 2019 | $1,038,000 | -2.7% | 53,800 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $1,067,000 | -0.9% | 53,800 | +5.5% | 0.00% | 0.0% |
| Q2 2019 | $1,077,000 | +10.2% | 51,000 | +6.7% | 0.00% | 0.0% |
| Q1 2019 | $977,000 | +33.1% | 47,800 | +29.5% | 0.00% | +50.0% |
| Q4 2018 | $734,000 | +5.5% | 36,900 | +1.9% | 0.00% | 0.0% |
| Q3 2018 | $696,000 | +26.1% | 36,200 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $552,000 | +5.1% | 36,200 | +29.3% | 0.00% | 0.0% |
| Q1 2018 | $525,000 | -2.6% | 28,000 | 0.0% | 0.00% | +100.0% |
| Q4 2017 | $539,000 | +7.8% | 28,000 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $500,000 | 0.0% | 28,000 | 0.0% | 0.00% | -50.0% |
| Q2 2017 | $500,000 | – | 28,000 | – | 0.00% | – |
Download | ||||||
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% |