Yorktown Management & Research Co Inc - THORATEC CORP ownership

THORATEC CORP's ticker is THOR and the CUSIP is 885175307. A total of 2 filers reported holding THORATEC CORP in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
Yorktown Management & Research Co Inc ownership history of THORATEC CORP
ValueSharesWeighting
Q3 2015$399,000
+42.0%
6,3000.0%0.07%
+34.7%
Q2 2015$281,000
+6.4%
6,3000.0%0.05%
+2.1%
Q1 2015$264,000
-14.3%
6,300
-33.7%
0.05%
-25.0%
Q4 2014$308,000
+21.3%
9,5000.0%0.06%
+30.6%
Q3 2014$254,0009,5000.05%
Other shareholders
THORATEC CORP shareholders Q4 2015
NameSharesValueWeighting ↓
ORACLE INVESTMENT MANAGEMENT INC 1,232,600$40,010,0005.25%
SECTOR GAMMA AS 392,500$12,741,0002.83%
IAT REINSURANCE CO LTD. 605,318$19,649,0002.73%
DECADE CAPITAL MANAGEMENT LLC 455,900$14,799,0002.54%
Park West Asset Management LLC 399,472$12,967,0002.06%
Rock Springs Capital Management LP 533,500$17,317,0002.03%
Antipodean Advisors LLC 658,000$21,359,0001.91%
CATAPULT CAPITAL MANAGEMENT LLC 200,000$6,492,0001.65%
Broadfin Capital, LLC 1,000,000$32,460,0001.41%
Cohen Capital Management, Inc. 149,865$4,865,0001.26%
View complete list of THORATEC CORP shareholders