VIRGINIA RETIREMENT SYSTEMS ET AL - CUBIST PHARMACEUTICALS INC ownership

CUBIST PHARMACEUTICALS INC's ticker is CBST and the CUSIP is 229678107. A total of 256 filers reported holding CUBIST PHARMACEUTICALS INC in Q3 2014. The put-call ratio across all filers is 1.05 and the average weighting 0.2%.

Quarter-by-quarter ownership
VIRGINIA RETIREMENT SYSTEMS ET AL ownership history of CUBIST PHARMACEUTICALS INC
ValueSharesWeighting
Q4 2014$2,315,000
+51.7%
23,0000.0%0.04%
+44.0%
Q3 2014$1,526,000
-1.5%
23,000
+3.6%
0.02%
-7.4%
Q2 2014$1,550,000
-6.2%
22,200
-1.8%
0.03%
-12.9%
Q1 2014$1,653,000
+3.9%
22,600
-2.2%
0.03%
-3.1%
Q4 2013$1,591,000
+17.0%
23,100
+7.9%
0.03%
+10.3%
Q3 2013$1,360,000
+28.1%
21,400
-2.7%
0.03%
+45.0%
Q2 2013$1,062,00022,0000.02%
Other shareholders
CUBIST PHARMACEUTICALS INC shareholders Q3 2014
NameSharesValueWeighting ↓
Palo Alto Investors LP 1,336,136$92,020,0008.58%
Cormorant Asset Management, LP 400,000$27,548,0008.00%
HealthCor Management, L.P. 1,400,000$96,418,0005.86%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 1,000,000$68,870,0003.57%
SECTOR GAMMA AS 176,090$12,127,0003.27%
EAGLE BOSTON INVESTMENT MANAGEMENT INC 698,376$48,097,0002.33%
Ghost Tree Capital, LLC 50,000$3,444,0002.12%
Duquesne Family Office 413,000$28,443,0001.90%
Rail-Splitter Capital Management, LLC 78,900$5,434,0001.88%
MAZAMA CAPITAL MANAGEMENT INC 50,891$3,505,0001.74%
View complete list of CUBIST PHARMACEUTICALS INC shareholders