MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328900. A total of 2 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q3 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2017 | $0 | -100.0% | 19 | -96.0% | 0.00% | – |
| Q1 2017 | $6,000 | +500.0% | 476 | +815.4% | 0.00% | – |
| Q4 2016 | $1,000 | -98.4% | 52 | -87.7% | 0.00% | -100.0% |
| Q3 2016 | $63,000 | +3050.0% | 424 | +54.7% | 0.00% | – |
| Q2 2016 | $2,000 | -84.6% | 274 | +4.2% | 0.00% | -100.0% |
| Q1 2016 | $13,000 | – | 263 | +1043.5% | 0.00% | – |
| Q4 2015 | $0 | -100.0% | 23 | -93.1% | 0.00% | -100.0% |
| Q3 2015 | $18,000 | -45.5% | 333 | +404.5% | 0.00% | -75.0% |
| Q1 2015 | $33,000 | +175.0% | 66 | -5.7% | 0.00% | +300.0% |
| Q4 2014 | $12,000 | – | 70 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 424 | $63,000 | 0.00% |
| GROUP ONE TRADING, L.P. | 100 | $1,000 | 0.00% |