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 2022 | $5,000 | -16.7% | 175 | +2.9% | 0.00% | – |
| Q2 2022 | $6,000 | +20.0% | 170 | +25.0% | 0.00% | – |
| Q1 2022 | $5,000 | +66.7% | 136 | -23.2% | 0.00% | – |
| Q3 2021 | $3,000 | 0.0% | 177 | +24.6% | 0.00% | – |
| Q2 2021 | $3,000 | +50.0% | 142 | +6.0% | 0.00% | – |
| Q1 2021 | $2,000 | 0.0% | 134 | +24.1% | 0.00% | – |
| Q4 2020 | $2,000 | -33.3% | 108 | -22.9% | 0.00% | – |
| Q3 2020 | $3,000 | +50.0% | 140 | +72.8% | 0.00% | – |
| Q2 2020 | $2,000 | -50.0% | 81 | -69.9% | 0.00% | – |
| Q1 2020 | $4,000 | -75.0% | 269 | -67.0% | 0.00% | -100.0% |
| Q4 2019 | $16,000 | +6.7% | 815 | +11.2% | 0.00% | 0.0% |
| Q3 2019 | $15,000 | -94.0% | 733 | -93.8% | 0.00% | -94.1% |
| Q2 2019 | $249,000 | -21.0% | 11,741 | -23.7% | 0.02% | -32.0% |
| Q1 2019 | $315,000 | +242.4% | 15,396 | +232.5% | 0.02% | +212.5% |
| Q4 2018 | $92,000 | -99.9% | 4,631 | -55.8% | 0.01% | -42.9% |
| Q2 2018 | $160,017,000 | +290840.0% | 10,486 | +259.8% | 0.01% | +180.0% |
| Q1 2018 | $55,000 | +10.0% | 2,914 | +11.2% | 0.01% | +25.0% |
| Q4 2017 | $50,000 | +900.0% | 2,620 | +915.5% | 0.00% | +300.0% |
| Q3 2017 | $5,000 | -28.6% | 258 | -33.2% | 0.00% | 0.0% |
| Q2 2017 | $7,000 | +133.3% | 386 | +95.9% | 0.00% | – |
| Q1 2017 | $3,000 | – | 197 | – | 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% |