AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $1,467,000 | +2.3% | 71,797 | -0.3% | 0.00% | 0.0% |
| Q4 2018 | $1,434,000 | -49.5% | 72,043 | -51.2% | 0.00% | 0.0% |
| Q3 2018 | $2,840,000 | +135.7% | 147,638 | +86.9% | 0.00% | 0.0% |
| Q2 2018 | $1,205,000 | -51.3% | 78,987 | -40.1% | 0.00% | -50.0% |
| Q1 2018 | $2,474,000 | +42.8% | 131,942 | +46.4% | 0.00% | +100.0% |
| Q4 2017 | $1,733,000 | +1.0% | 90,094 | -6.1% | 0.00% | 0.0% |
| Q3 2017 | $1,715,000 | -2.2% | 95,954 | -2.2% | 0.00% | 0.0% |
| Q2 2017 | $1,753,000 | +5.4% | 98,150 | -14.4% | 0.00% | 0.0% |
| Q1 2017 | $1,663,000 | -30.7% | 114,668 | -12.0% | 0.00% | -50.0% |
| Q4 2016 | $2,400,000 | -8.2% | 130,294 | -5.4% | 0.00% | 0.0% |
| Q3 2016 | $2,614,000 | +23.4% | 137,797 | +4.8% | 0.00% | 0.0% |
| Q2 2016 | $2,119,000 | +70.2% | 131,425 | +26.7% | 0.00% | +100.0% |
| Q1 2016 | $1,245,000 | -36.4% | 103,741 | -24.6% | 0.00% | 0.0% |
| Q4 2015 | $1,959,000 | +59.3% | 137,641 | +30.8% | 0.00% | 0.0% |
| Q3 2015 | $1,230,000 | -6.2% | 105,219 | +40.9% | 0.00% | 0.0% |
| Q2 2015 | $1,312,000 | +306.2% | 74,656 | +246.2% | 0.00% | – |
| Q1 2015 | $323,000 | +29.2% | 21,562 | 0.0% | 0.00% | – |
| Q4 2014 | $250,000 | +12.6% | 21,562 | +12.9% | 0.00% | – |
| Q3 2014 | $222,000 | – | 19,095 | – | 0.00% | – |
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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% |