AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $11,558,000 | +2.4% | 565,760 | -0.3% | 0.01% | -12.5% |
| Q4 2018 | $11,287,000 | -48.3% | 567,204 | -50.0% | 0.02% | +23.1% |
| Q3 2018 | $21,818,000 | +154.1% | 1,133,968 | +101.5% | 0.01% | +18.2% |
| Q2 2018 | $8,588,000 | -16.7% | 562,790 | +2.3% | 0.01% | -15.4% |
| Q1 2018 | $10,313,000 | -2.6% | 550,030 | -0.1% | 0.01% | -7.1% |
| Q4 2017 | $10,588,000 | +7.9% | 550,310 | +0.2% | 0.01% | +7.7% |
| Q3 2017 | $9,813,000 | +0.1% | 549,149 | 0.0% | 0.01% | -7.1% |
| Q2 2017 | $9,808,000 | +24.6% | 549,149 | +1.1% | 0.01% | +27.3% |
| Q1 2017 | $7,873,000 | -21.3% | 542,953 | 0.0% | 0.01% | -31.2% |
| Q4 2016 | $10,001,000 | -2.6% | 542,953 | +0.3% | 0.02% | -5.9% |
| Q3 2016 | $10,268,000 | +23.5% | 541,260 | +5.0% | 0.02% | +13.3% |
| Q2 2016 | $8,311,000 | +40.7% | 515,560 | +4.8% | 0.02% | +36.4% |
| Q1 2016 | $5,906,000 | +0.2% | 492,136 | +18.8% | 0.01% | 0.0% |
| Q4 2015 | $5,894,000 | +413.4% | 414,226 | +321.7% | 0.01% | +450.0% |
| Q3 2015 | $1,148,000 | +42.4% | 98,221 | +114.3% | 0.00% | +100.0% |
| Q2 2015 | $806,000 | +524.8% | 45,826 | +432.2% | 0.00% | – |
| Q1 2015 | $129,000 | +29.0% | 8,611 | 0.0% | 0.00% | – |
| Q4 2014 | $100,000 | 0.0% | 8,611 | 0.0% | 0.00% | – |
| Q3 2014 | $100,000 | – | 8,611 | – | 0.00% | – |
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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% |