MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 139 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q4 2015. The put-call ratio across all filers is 1.51 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2015 | $3,531,000 | -15.2% | 414,962 | +23.3% | 0.00% | 0.0% |
| Q2 2015 | $4,163,000 | +10.5% | 336,678 | +6.2% | 0.00% | 0.0% |
| Q1 2015 | $3,766,000 | +49.5% | 316,978 | +42.2% | 0.00% | 0.0% |
| Q4 2014 | $2,519,000 | +79.3% | 222,867 | +39.2% | 0.00% | – |
| Q3 2014 | $1,405,000 | +707.5% | 160,056 | +569.7% | 0.00% | – |
| Q2 2014 | $174,000 | -80.0% | 23,900 | -86.2% | 0.00% | – |
| Q1 2014 | $871,000 | – | 172,900 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Lagoda Investment Management, L.P. | 2,211,880 | $17,474,000 | 4.63% |
| Parametrica Management Ltd | 21,228 | $168,000 | 1.11% |
| GARRISON BRADFORD & ASSOCIATES INC | 82,700 | $653,000 | 0.73% |
| Virtus ETF Advisers LLC | 33,570 | $265,000 | 0.73% |
| Opus Point Partners Management, LLC | 122,500 | $968,000 | 0.64% |
| NEXTHERA CAPITAL LP | 36,000 | $284,000 | 0.40% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 7,255,815 | $57,321,000 | 0.39% |
| Cannell & Co. | 1,051,178 | $7,751,000 | 0.25% |
| Tekla Capital Management LLC | 853,787 | $6,745,000 | 0.24% |
| STONERIDGE INVESTMENT PARTNERS LLC | 208,282 | $1,645,000 | 0.22% |