THOR

THORATEC CORPORATION
THOR

Overview Fund Activity
Delisted

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

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223 hedge funds and large institutions have $3.08B invested in THORATEC CORPORATION in 2015 Q3 according to their latest regulatory filings, with 65 funds opening new positions, 45 increasing their positions, 88 reducing their positions, and 60 closing their positions.

Holders
223
Holders Change
+4
Holders Change %
+1.83%
% of All Funds
6.23%
Holding in Top 10
13
Holding in Top 10 Change
+8
Holding in Top 10 Change %
+160%
% of All Funds
0.36%
New
65
Increased
45
Reduced
88
Closed
60
Calls
$30.7M
Puts
$18.8M
Net Calls
+$11.9M
Net Calls Change
-$4.8M

Top Buyers

1
PRCM
1
Pine River Capital Management
Minnesota
$144M
2
WIC
2
Water Island Capital
New York
$95.6M
3
OAM
3
Oxford Asset Management
United Kingdom
$88.6M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$76.7M
5
AA
5
AQR Arbitrage
Connecticut
$73.6M

Top Sellers

1
PAI
1
Palo Alto Investors
California
$17M
2
Millennium Management
2
Millennium Management
New York
$14.9M
3
OIM
3
Oracle Investment Management
Connecticut
$316K
4
Invesco
4
Invesco
Georgia
$3.61M
5
PWAM
5
Park West Asset Management
California
$7.7M
Name Market Value Shares Shares
Change 		Shares
Change %
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$323M 5,104,659 -32,070 -0.6%
Vanguard Group
2
Vanguard Group
Pennsylvania
$241M 3,802,773 +132,208 +4%
BFA
3
BlackRock Fund Advisors
California
$170M 2,690,122 -35,850 -1%
PRCM
4
Pine River Capital Management
Minnesota
$144M 2,279,366 +2,279,366 New
EAM
5
Eagle Asset Management
Florida
$132M 2,089,543 -775,894 -27%
State Street
6
State Street
Massachusetts
$107M 1,691,013 -89,064 -5%
BIT
7
BlackRock Institutional Trust
California
$97.2M 1,537,291 +34,976 +2%
WIC
8
Water Island Capital
New York
$95.6M 1,510,667 +1,510,667 New
OAM
9
Oxford Asset Management
United Kingdom
$88.6M 1,400,000 +1,400,000 New
Fidelity Investments
10
Fidelity Investments
Massachusetts
$76.7M 1,213,000 +1,213,000 New
AA
11
AQR Arbitrage
Connecticut
$73.6M 1,162,786 +1,162,786 New
Dimensional Fund Advisors
12
Dimensional Fund Advisors
Texas
$63.2M 998,975 +8,773 +0.9%
GF
13
Gabelli Funds
New York
$60.6M 957,600 +957,600 New
MF
14
Magnetar Financial
Illinois
$58.9M 931,755 +931,755 New
Northern Trust
15
Northern Trust
Illinois
$51.1M 807,043 -29,101 -3%
WCMNY
16
Westchester Capital Management (New York)
New York
$42.2M 667,788 +667,788 New
Bank of New York Mellon
17
Bank of New York Mellon
New York
$39.8M 629,552 -50,398 -7%
Morgan Stanley
18
Morgan Stanley
New York
$39.4M 622,737 +473,870 +318%
AAM
19
Alpine Associates Management
Florida
$38.4M 606,300 +606,300 New
GCL
20
Glazer Capital LLC
New York
$37.8M 597,466 +597,466 New
Deutsche Bank
21
Deutsche Bank
Germany
$34.7M 549,077 -289,363 -35%
TAL
22
TIG Advisors LLC
New York
$33.6M 531,438 +531,438 New
JPMorgan Chase & Co
23
JPMorgan Chase & Co
New York
$33.2M 524,654 -297,668 -36%
Norges Bank
24
Norges Bank
Norway
$30M 474,760 -43,436 -8%
GCIA
25
Gabelli & Co Investment Advisers
New York
$29.4M 464,925 +464,925 New
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