WESTFIELD CAPITAL MANAGEMENT CO LP - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 89 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q2 2013. The put-call ratio across all filers is 1.18 and the average weighting 0.0%.

Quarter-by-quarter ownership
WESTFIELD CAPITAL MANAGEMENT CO LP ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q4 2016$37,017,000
-34.5%
9,072,877
+2.0%
0.32%
-28.7%
Q3 2016$56,477,000
+15.5%
8,894,008
-2.0%
0.46%
+12.9%
Q2 2016$48,912,000
-28.1%
9,074,557
+11.7%
0.40%
-22.0%
Q1 2016$68,023,000
+18.7%
8,127,022
+12.0%
0.52%
+34.2%
Q4 2015$57,321,000
+3.4%
7,255,815
+11.4%
0.39%
-1.5%
Q3 2015$55,413,000
-8.2%
6,511,561
+33.4%
0.39%
+6.5%
Q2 2015$60,362,000
+75.0%
4,881,667
+68.1%
0.37%
+84.9%
Q1 2015$34,494,000
+545.6%
2,903,559
+105.9%
0.20%
+485.3%
Q3 2013$5,343,000
-46.9%
1,409,870
-5.5%
0.03%
-50.7%
Q2 2013$10,055,0001,491,8500.07%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q2 2013
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