MARSHALL WACE, LLP - THORATEC CORP ownership

THORATEC CORP's ticker is THOR and the CUSIP is 885175307. A total of 191 filers reported holding THORATEC CORP in Q4 2014. The put-call ratio across all filers is 0.27 and the average weighting 0.2%.

Quarter-by-quarter ownership
MARSHALL WACE, LLP ownership history of THORATEC CORP
ValueSharesWeighting
Q3 2015$2,885,000
-7.4%
45,599
-34.8%
0.04%
-14.6%
Q2 2015$3,116,000
+393.0%
69,923
+363.6%
0.04%
+412.5%
Q1 2015$632,000
-25.5%
15,084
-42.3%
0.01%
-27.3%
Q4 2014$848,00026,1220.01%
Other shareholders

There were no reported owners of THORATEC CORP in Q4 2014.

NameSharesValueWeighting ↓
View complete list of THORATEC CORP shareholders