Spark Investment Management LLC - 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
Spark Investment Management LLC ownership history of CUBIST PHARMACEUTICALS INC
ValueSharesWeighting
Q3 2014$1,917,000
+4.0%
28,900
+14.7%
0.29%
+0.3%
Q1 2014$1,843,000
+6.2%
25,2000.0%0.29%
-4.7%
Q4 2013$1,735,000
+8.4%
25,2000.0%0.30%
-17.8%
Q3 2013$1,601,000
+115.5%
25,200
+63.6%
0.37%
+83.9%
Q2 2013$743,00015,4000.20%
Other shareholders
CUBIST PHARMACEUTICALS INC shareholders Q3 2014
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