GSA CAPITAL PARTNERS LLP - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 143 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q2 2016. The put-call ratio across all filers is 1.62 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 Q2 2016
NameSharesValueWeighting ↓
Lagoda Investment Management, L.P. 775,571$2,389,0000.93%
KEMPNER CAPITAL MANAGEMENT INC. 148,985$459,0000.31%
Yakira Capital Management, Inc. 248,420$765,0000.27%
GARRISON BRADFORD & ASSOCIATES INC 87,700$270,0000.24%
Cannell & Co. 1,212,478$3,734,0000.13%
LeJeune Puetz Investment Counsel LLC 3,976$180,0000.13%
ALPINE WOODS CAPITAL INVESTORS, LLC 726,000$2,236,0000.12%
Virtus ETF Advisers LLC 198,735$612,0000.11%
STONERIDGE INVESTMENT PARTNERS LLC 199,227$614,0000.08%
Birchview Capital, LP 44,000$136,0000.08%
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders