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 %
PP
251
PDT Partners
New York
– – -36,416 Closed
ARTA
252
A.R.T. Advisors
New York
– – -35,721 Closed
LCG
253
Lisanti Capital Growth
New York
– – -32,770 Closed
SFP
254
Santa Fe Partners
New Mexico
– – -30,091 Closed
GCP
255
GSA Capital Partners
United Kingdom
– – -29,334 Closed
FM
256
Forward Management
California
– – -28,650 Closed
MACM
257
March Altus Capital Management
Connecticut
– – -23,486 Closed
DCM
258
Driehaus Capital Management
Illinois
– – -21,065 Closed
Group One Trading
259
Group One Trading
Illinois
– – -20,896 Closed
UFF
260
USA Financial Formulas
Michigan
– – -17,919 Closed
BCM
261
Bridgeway Capital Management
Texas
– – -12,300 Closed
TI
262
Trexquant Investment
Connecticut
– – -12,200 Closed
ECM
263
Endurant Capital Management
California
– – -11,400 Closed
CSS
264
Cubist Systematic Strategies
Connecticut
– – -10,654 Closed
NI
265
Numeric Investors
Massachusetts
– – -9,400 Closed
HHC
266
Hutchin Hill Capital
New York
– – -8,600 Closed
POA
267
Pergamon Offshore Advisors
New York
– – -7,833 Closed
M&T Bank
268
M&T Bank
New York
– – -7,412 Closed
FAM
269
Fortaleza Asset Management
Illinois
– – -6,960 Closed
RFS
270
Rockefeller Financial Services
New York
– – -6,750 Closed
EMG
271
Ellington Management Group
Connecticut
– – -6,300 Closed
TIM
272
Thompson Investment Management
Wisconsin
– – -6,000 Closed
Jane Street
273
Jane Street
New York
– – -5,766 Closed
DTL
274
Dynamic Technology Lab
Singapore
– – -5,762 Closed
Jacobs Levy Equity Management
275
Jacobs Levy Equity Management
New Jersey
– – -5,740 Closed
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