SIMPLEX TRADING, LLC - THORATEC CORP ownership

THORATEC CORP's ticker is and the CUSIP is 885175957. A total of 3 filers reported holding THORATEC CORP in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of THORATEC CORP
ValueSharesWeighting
Q3 2015$3,00097
+438.9%
0.00%
Q1 2015$0
-100.0%
18
-55.0%
0.00%
Q4 2014$1,000400.00%
Other shareholders
THORATEC CORP shareholders Q3 2015
NameSharesValueWeighting ↓
Timber Hill LLC 47,000$1,720,0000.01%
GROUP ONE TRADING, L.P. 10,100$370,0000.01%
Citadel Advisors 19,600$717,0000.00%
View complete list of THORATEC CORP shareholders