Rock Springs Capital Management LP - CUBIST PHARMACEUTICALS INC ownership

CUBIST PHARMACEUTICALS INC's ticker is CBST and the CUSIP is 229678107. A total of 316 filers reported holding CUBIST PHARMACEUTICALS INC in Q4 2014. The put-call ratio across all filers is 2.12 and the average weighting 0.7%.

Quarter-by-quarter ownership
Rock Springs Capital Management LP ownership history of CUBIST PHARMACEUTICALS INC
ValueSharesWeighting
Q4 2014$8,807,000
+185.5%
87,500
+88.2%
1.03%
+115.9%
Q3 2014$3,085,000
+13.3%
46,500
+19.2%
0.48%
-2.3%
Q2 2014$2,723,000
+24.1%
39,000
+30.0%
0.49%
-3.6%
Q1 2014$2,195,000
+82.2%
30,000
+71.4%
0.51%
+17.7%
Q4 2013$1,205,00017,5000.43%
Other shareholders

There were no reported owners of CUBIST PHARMACEUTICALS INC in Q4 2014.

NameSharesValueWeighting ↓
View complete list of CUBIST PHARMACEUTICALS INC shareholders