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Western Digital

605 hedge funds and large institutions have $18.7B invested in Western Digital in 2015 Q1 according to their latest regulatory filings, with 75 funds opening new positions, 219 increasing their positions, 247 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
605
Holders Change
Holders Change %
0%
% of All Funds
16.14%
Holding in Top 10
21
Holding in Top 10 Change
-9
Holding in Top 10 Change %
-30%
% of All Funds
0.56%
New
75
Increased
219
Reduced
247
Closed
67
Calls
$314M
Puts
$292M
Net Calls
+$22.5M
Net Calls Change
+$87.2M
Name Holding Trade Value Shares
Change
Shares
Change %
FCH
401
Freestone Capital Holdings
Washington
$882K +$882K +12,815 New
DC
402
Deere & Company
Illinois
$877K +$877K +12,754 New
TMAM
403
Tokio Marine Asset Management
Japan
$867K -$104K -1,509 -11%
CHAM
404
Clear Harbor Asset Management
Connecticut
$852K -$2.27K -33 -0.3%
HIM
405
Herald Investment Management
United Kingdom
$836K
TH
406
Timber Hill
Connecticut
$820K -$4.33K -63 -0.5%
GIA
407
Guyasuta Investment Advisors
Pennsylvania
$796K +$141K +2,044 +21%
ST
408
Spot Trading
Illinois
$793K -$1.93M -28,106 -71%
Rafferty Asset Management
409
Rafferty Asset Management
New York
$789K +$382K +5,551 +94%
ARTA
410
A.R.T. Advisors
New York
$787K +$787K +11,453 New
GCA
411
Gideon Capital Advisors
New York
$783K +$783K +11,375 New
RAM
412
RWC Asset Management
United Kingdom
$755K -$654K -9,510 -46%
IIM
413
Ironwood Investment Management
Massachusetts
$754K
CLOS
414
Compagnie Lombard Odier SCmA
Switzerland
$745K +$618K +8,994 +485%
CT
415
Coastline Trust
Rhode Island
$739K -$3.17K -46 -0.4%
ACM
416
Aviance Capital Management
Florida
$732K -$5.66M -82,248 -89%
CPIM
417
Columbia Partners Investment Management
Virginia
$727K -$191K -2,780 -21%
SIM
418
Sentry Investment Management
Wisconsin
$725K
AIP
419
Ameritas Investment Partners
Nebraska
$716K -$10.2K -149 -1%
BCM
420
Beck Capital Management
Texas
$711K -$126K -1,835 -15%
Koshinski Asset Management
421
Koshinski Asset Management
Illinois
$691K +$7.3K +106 +1%
Tudor Investment Corp
422
Tudor Investment Corp
Connecticut
$683K +$446K +6,488 +189%
AssetMark Inc
423
AssetMark Inc
California
$680K -$51.3K -745 -7%
FI
424
FormulaFolio Investments
Michigan
$673K +$261K +3,799 +63%
GLA
425
Great Lakes Advisors
Illinois
$669K -$2.07M -30,150 -76%