AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 111 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $157,000 | -23.0% | 10,550 | 0.0% | 0.01% | -28.6% |
| Q4 2019 | $204,000 | -0.5% | 10,550 | +2.0% | 0.01% | -12.5% |
| Q3 2019 | $205,000 | -5.5% | 10,340 | +0.4% | 0.01% | -46.7% |
| Q2 2019 | $217,000 | +4.8% | 10,300 | +1.8% | 0.02% | +7.1% |
| Q1 2019 | $207,000 | +3.0% | 10,120 | 0.0% | 0.01% | +16.7% |
| Q4 2018 | $201,000 | +30.5% | 10,120 | 0.0% | 0.01% | +50.0% |
| Q2 2018 | $154,000 | -41.9% | 10,120 | -28.4% | 0.01% | -38.5% |
| Q1 2018 | $265,000 | +2.7% | 14,140 | +5.6% | 0.01% | 0.0% |
| Q4 2017 | $258,000 | +7.9% | 13,390 | 0.0% | 0.01% | 0.0% |
| Q3 2017 | $239,000 | +58.3% | 13,390 | +58.8% | 0.01% | +62.5% |
| Q2 2017 | $151,000 | +26.9% | 8,430 | +2.8% | 0.01% | +33.3% |
| Q1 2017 | $119,000 | -18.5% | 8,200 | +3.7% | 0.01% | -14.3% |
| Q4 2016 | $146,000 | – | 7,910 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 128,000 | $5,886,720 | 5.78% |
| Beacon Harbor Wealth Advisors, Inc. | 103,095 | $4,741 | 1.58% |
| Capital Impact Advisors, LLC | 15,304 | $703,831 | 1.18% |
| Quantedge Capital Pte Ltd | 36,389 | $1,673,530 | 0.91% |
| Mesirow Institutional Investment Management, Inc. | 183,805 | $8,453,192 | 0.86% |
| Monashee Investment Management LLC | 39,461 | $1,814,811 | 0.76% |
| OBERWEIS ASSET MANAGEMENT INC/ | 152,500 | $7,013,475 | 0.74% |
| Granite Investment Partners, LLC | 330,911 | $15,218,597 | 0.64% |
| Portolan Capital Management | 132,850 | $6,109,772 | 0.57% |
| SHAKER INVESTMENTS LLC/OH | 20,795 | $956,362 | 0.53% |