MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328950. A total of 3 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2017 | $160,000 | -73.0% | 129,300 | -32.8% | 0.00% | -71.4% |
| Q1 2017 | $592,000 | +70.1% | 192,300 | +125.4% | 0.01% | +133.3% |
| Q4 2016 | $348,000 | +48.7% | 85,300 | +131.2% | 0.00% | 0.0% |
| Q3 2016 | $234,000 | -21.2% | 36,900 | -33.0% | 0.00% | -25.0% |
| Q2 2016 | $297,000 | +1756.2% | 55,100 | +2800.0% | 0.00% | – |
| Q1 2016 | $16,000 | -94.6% | 1,900 | -94.9% | 0.00% | -100.0% |
| Q4 2015 | $294,000 | -74.3% | 37,200 | -72.3% | 0.00% | -81.2% |
| Q3 2015 | $1,144,000 | +12.7% | 134,400 | +63.7% | 0.02% | +14.3% |
| Q2 2015 | $1,015,000 | +43.8% | 82,100 | +38.2% | 0.01% | +27.3% |
| Q1 2015 | $706,000 | +199.2% | 59,400 | +184.2% | 0.01% | +175.0% |
| Q4 2014 | $236,000 | -31.6% | 20,900 | -46.8% | 0.00% | -20.0% |
| Q3 2014 | $345,000 | -80.7% | 39,300 | -84.0% | 0.01% | -82.1% |
| Q2 2014 | $1,786,000 | +315.3% | 245,000 | +187.2% | 0.03% | +300.0% |
| Q1 2014 | $430,000 | +225.8% | 85,300 | +244.0% | 0.01% | +250.0% |
| Q4 2013 | $132,000 | +112.9% | 24,800 | +53.1% | 0.00% | +100.0% |
| Q3 2013 | $62,000 | -32.6% | 16,200 | +18.2% | 0.00% | -50.0% |
| Q2 2013 | $92,000 | – | 13,700 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 20,900 | $236,000 | 0.00% |
| Citadel Advisors | 13,700 | $155,000 | 0.00% |
| SIMPLEX TRADING, LLC | 14 | $1,000 | 0.00% |