WESTFIELD CAPITAL MANAGEMENT CO LP - CUBIST PHARMACEUTICALS INC ownership

CUBIST PHARMACEUTICALS INC's ticker is CBST and the CUSIP is 229678107. A total of 253 filers reported holding CUBIST PHARMACEUTICALS INC in Q2 2013. The put-call ratio across all filers is 0.13 and the average weighting 0.2%.

Quarter-by-quarter ownership
WESTFIELD CAPITAL MANAGEMENT CO LP ownership history of CUBIST PHARMACEUTICALS INC
ValueSharesWeighting
Q4 2014$273,775,000
+20.6%
2,720,073
-20.5%
1.61%
+16.2%
Q3 2014$226,978,000
+0.5%
3,421,430
+5.8%
1.39%
+3.1%
Q2 2014$225,838,000
+14.4%
3,234,570
+19.9%
1.34%
+13.8%
Q1 2014$197,376,000
+6.0%
2,698,235
-0.2%
1.18%
+7.8%
Q4 2013$186,191,000
+60.5%
2,703,519
+48.1%
1.10%
+47.9%
Q3 2013$115,987,000
+51.0%
1,825,134
+14.7%
0.74%
+40.3%
Q2 2013$76,838,0001,591,1790.53%
Other shareholders
CUBIST PHARMACEUTICALS INC shareholders Q2 2013
NameSharesValueWeighting ↓
Palo Alto Investors LP 1,843,688$122,310,0009.14%
HealthCor Management, L.P. 1,100,000$72,974,0003.75%
SECTOR GAMMA AS 199,990$13,267,0003.10%
AMI ASSET MANAGEMENT CORP 365,309$24,235,0002.38%
Redmile Group, LLC 283,756$18,824,0002.17%
EAGLE BOSTON INVESTMENT MANAGEMENT INC 1,134,336$75,250,0002.10%
PointState Capital LP 1,650,000$109,461,0001.98%
Tamarack Capital Management, LLC 110,000$7,297,0001.62%
Tekla Capital Management LLC 494,454$32,802,0001.54%
WESTFIELD CAPITAL MANAGEMENT CO LP 3,421,430$226,978,0001.39%
View complete list of CUBIST PHARMACEUTICALS INC shareholders