THOR

THORATEC CORPORATION
THOR

Overview Fund Activity
Delisted

THOR was delisted on the 8th of October, 2015.

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219 hedge funds and large institutions have $2.27B invested in THORATEC CORPORATION in 2015 Q2 according to their latest regulatory filings, with 49 funds opening new positions, 69 increasing their positions, 68 reducing their positions, and 10 closing their positions.

Holders
219
Holders Change
+37
Holders Change %
+20.33%
% of All Funds
5.91%
Holding in Top 10
5
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-16.67%
% of All Funds
0.13%
New
49
Increased
69
Reduced
68
Closed
10
Calls
$34.8M
Puts
$18.1M
Net Calls
+$16.7M
Net Calls Change
+$3.32M

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$36.8M
2
EAM
2
Eagle Asset Management
Florida
$128M
3
PWAM
3
Park West Asset Management
California
$43.5M
4
BJCM
4
Blue Jay Capital Management
California
$9.58M
5
Arrowstreet Capital
5
Arrowstreet Capital
Massachusetts
$10.1M

Top Sellers

1
AA
1
Antipodean Advisors
New York
$0
2
BA
2
BlackRock Advisors
Delaware
$48.6M
3
Boston Partners
3
Boston Partners
Massachusetts
$3.48M
4
BTW
4
Boston Trust Walden
Massachusetts
$27.6M
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$229M
Name Holding Trade Value Shares
Change 		Shares
Change %
CSS
151
Cubist Systematic Strategies
Connecticut
$475K +$475K +10,654 New
RHBC
152
R.H. Bluestein & Co
Michigan
$468K +$156K +3,500 +50%
WSC
153
Wellington Shields & Co
New York
$457K – – –
NI
154
Numeric Investors
Massachusetts
$419K -$753K -16,900 -64%
HHC
155
Hutchin Hill Capital
New York
$383K -$66.8K -1,500 -15%
Mariner
156
Mariner
Kansas
$363K +$363K +8,154 New
POA
157
Pergamon Offshore Advisors
New York
$349K +$349K +7,833 New
SAM
158
Securian Asset Management
Minnesota
$338K -$4.45K -100 -1%
M&T Bank
159
M&T Bank
New York
$330K -$4.41K -99 -1%
SG Americas Securities
160
SG Americas Securities
New York
$317K +$317K +7,114 New
FAM
161
Fortaleza Asset Management
Illinois
$310K +$310K +6,960 New
RFS
162
Rockefeller Financial Services
New York
$301K – – –
AG
163
Algert Global
California
$282K +$282K +6,320 New
YMRC
164
Yorktown Management & Research Company
Virginia
$281K – – –
EMG
165
Ellington Management Group
Connecticut
$281K +$281K +6,300 New
TIM
166
Thompson Investment Management
Wisconsin
$267K -$89K -2,000 -25%
AB
167
Amalgamated Bank
New York
$261K +$5.31K +119 +2%
SCM
168
Shelton Capital Management
Colorado
$259K – – –
DTL
169
Dynamic Technology Lab
Singapore
$257K +$257K +5,762 New
Jane Street
170
Jane Street
New York
$257K +$257K +5,766 New
Jacobs Levy Equity Management
171
Jacobs Levy Equity Management
New Jersey
$256K +$256K +5,740 New
Janney Montgomery Scott
172
Janney Montgomery Scott
Pennsylvania
$250K +$13.4K +300 +6%
Thrivent Financial for Lutherans
173
Thrivent Financial for Lutherans
Minnesota
$247K +$247K +5,550 New
VKH
174
Virtu KCG Holdings
New York
$245K +$245K +5,488 New
Walleye Trading
175
Walleye Trading
New York
$239K +$216K +4,841 +946%
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