Perceptive Advisors - MERRIMACK PHARMACEUTICALS IN ownership

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MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 118 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2017. The put-call ratio across all filers is 1.86 and the average weighting 0.0%.

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Quarter-by-quarter ownership
Perceptive Advisors ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q4 2016$200,000
-35.7%
48,9100.0%0.01%
-30.0%
Q3 2016$311,000
+15.2%
48,910
-2.2%
0.02%
+5.3%
Q2 2016$270,000
-35.6%
50,0000.0%0.02%
-48.6%
Q1 2016$419,000
+6.1%
50,0000.0%0.04%
+27.6%
Q4 2015$395,000–50,000–0.03%–
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Other shareholders

There were no reported owners of MERRIMACK PHARMACEUTICALS IN in Q1 2017.

NameSharesValueWeighting ↓
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders