GSA CAPITAL PARTNERS LLP - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 153 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2015. The put-call ratio across all filers is 0.37 and the average weighting 0.1%.

Quarter-by-quarter ownership
GSA CAPITAL PARTNERS LLP ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q1 2016$113,000
-96.4%
13,554
-94.6%
0.01%
-94.1%
Q2 2015$3,104,000
+66.4%
251,065
+59.9%
0.12%
+60.8%
Q1 2015$1,865,000
+183.9%
156,973
+109.7%
0.07%
+111.4%
Q3 2014$657,000
+82.5%
74,852
+51.7%
0.04%
+118.8%
Q2 2014$360,00049,3520.02%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q1 2015
NameSharesValueWeighting ↓
GREAT POINT PARTNERS LLC 5,000,000$20,400,0004.19%
Consonance Capital Management LP 9,067,998$36,997,0004.06%
Lagoda Investment Management, L.P. 1,522,529$6,212,0002.13%
INDUS CAPITAL PARTNERS, LLC 1,050,000$4,284,0000.56%
WESTFIELD CAPITAL MANAGEMENT CO LP 9,072,877$37,017,0000.32%
GARRISON BRADFORD & ASSOCIATES INC 77,700$317,0000.29%
Cannell & Co. 1,572,978$6,418,0000.23%
Virtus ETF Advisers LLC 179,625$733,0000.22%
LeJeune Puetz Investment Counsel LLC 3,976$161,0000.12%
STONERIDGE INVESTMENT PARTNERS LLC 221,838$905,0000.12%
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders