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 | $12,556 | -20.0% | 273 | 0.0% | 0.00% | -25.0% |
| Q2 2023 | $15,690 | +97.3% | 273 | +28.8% | 0.00% | +100.0% |
| Q1 2023 | $7,951 | +50.2% | 212 | +12.2% | 0.00% | 0.0% |
| Q4 2022 | $5,295 | +76.5% | 189 | +61.5% | 0.00% | +100.0% |
| Q3 2022 | $3,000 | -25.0% | 117 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $4,000 | 0.0% | 117 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $4,000 | +33.3% | 117 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $3,000 | – | 117 | +1362.5% | 0.00% | – |
| Q2 2021 | $0 | -100.0% | 8 | -85.2% | 0.00% | – |
| Q4 2020 | $1,000 | 0.0% | 54 | +54.3% | 0.00% | – |
| Q3 2020 | $1,000 | – | 35 | +59.1% | 0.00% | – |
| Q2 2020 | $0 | – | 22 | -8.3% | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 24 | -38.5% | 0.00% | – |
| Q3 2019 | $1,000 | – | 39 | +77.3% | 0.00% | – |
| Q2 2019 | $0 | -100.0% | 22 | -26.7% | 0.00% | – |
| Q1 2019 | $1,000 | 0.0% | 30 | -25.0% | 0.00% | – |
| Q4 2018 | $1,000 | 0.0% | 40 | 0.0% | 0.00% | – |
| Q3 2018 | $1,000 | – | 40 | +37.9% | 0.00% | – |
| Q2 2018 | $0 | -100.0% | 29 | -50.0% | 0.00% | – |
| Q1 2018 | $1,000 | 0.0% | 58 | +100.0% | 0.00% | – |
| Q4 2017 | $1,000 | 0.0% | 29 | 0.0% | 0.00% | – |
| Q3 2017 | $1,000 | 0.0% | 29 | 0.0% | 0.00% | – |
| Q2 2017 | $1,000 | – | 29 | 0.0% | 0.00% | – |
| Q1 2017 | $0 | – | 29 | +26.1% | 0.00% | – |
| Q4 2016 | $0 | – | 23 | – | 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% |