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Western Digital
WDC

Overview Fund Activity

499 hedge funds and large institutions have $12.3B invested in Western Digital in 2013 Q3 according to their latest regulatory filings, with 67 funds opening new positions, 175 increasing their positions, 202 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
499
Holders Change
+20
Holders Change %
+4.18%
% of All Funds
16.19%
Holding in Top 10
15
Holding in Top 10 Change
-7
Holding in Top 10 Change %
-31.82%
% of All Funds
0.49%
New
67
Increased
175
Reduced
202
Closed
43
Calls
$192M
Puts
$215M
Net Calls
-$22.3M
Net Calls Change
+$18.2M

Top Buyers

1
AAM
Alken Asset Management
United Kingdom
$551M
2
O
OppenheimerFunds
New York
$365M
3
Allianz Asset Management
Allianz Asset Management
Germany
$267M
4
Boston Partners
Boston Partners
Massachusetts
$148M
5
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$173M

Top Sellers

1
CBOA
Commonwealth Bank of Australia
Australia
$188M
2
Fidelity Investments
Fidelity Investments
Massachusetts
$98.1M
3
Sanders Capital
Sanders Capital
Florida
$32.6M
4
NI
Numeric Investors
Massachusetts
$1.33M
5
CIM
Contrarius Investment Management
Jersey
$15.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
IIM
501
Ivory Investment Management
New York
– -$24.4M -520,235 Closed
CC
502
Carlson Capital
Texas
– -$24M -511,687 Closed
MWNA
503
Marshall Wace North America
New York
– -$16.5M -350,786 Closed
SCM
504
SG Capital Management
Illinois
– -$6.4M -136,453 Closed
PP
505
PDT Partners
New York
– -$5.83M -124,308 Closed
SCM
506
Sigma Capital Management
Connecticut
– -$4.52M -96,305 Closed
AG
507
Algert Global
California
– -$3.1M -66,057 Closed
Jennison Associates
508
Jennison Associates
New York
– -$2.51M -53,452 Closed
NMERB
509
New Mexico Educational Retirement Board
New Mexico
– -$2.14M -45,513 Closed
CCM
510
Coe Capital Management
Illinois
– -$2.02M -43,054 Closed
MVP
511
Missouri Valley Partners
Missouri
– -$1.38M -29,437 Closed
AC
512
AFAM Capital
Texas
– -$1.35M -28,683 Closed
MWVC
513
Morgens Waterfall Vintiadis & Co
New York
– -$1.3M -27,783 Closed
GMIM
514
General Motors Investment Management
New York
– -$1.21M -25,718 Closed
MLIM
515
Mountain Lake Investment Management
Florida
– -$903K -19,238 Closed
PWAG
516
Polaris Wealth Advisory Group
California
– -$790K -16,829 Closed
LC
517
Lourd Capital
California
– -$621K -13,230 Closed
SCM
518
Stux Capital Management
New York
– -$615K -13,098 Closed
BHA
519
Beech Hill Advisors
New York
– -$556K -11,841 Closed
CNB
520
City National Bank
California
– -$535K -11,386 Closed
Verition Fund Management
521
Verition Fund Management
Connecticut
– -$468K -9,981 Closed
QT
522
Quantbot Technologies
New York
– -$459K -9,794 Closed
CHAM
523
Clear Harbor Asset Management
Connecticut
– -$391K -8,335 Closed
HAMF
524
Hatteras Alternative Mutual Funds
North Carolina
– -$373K -7,939 Closed
MC
525
Menta Capital
California
– -$354K -7,541 Closed
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