506 hedge funds and large institutions have $23.5B invested in Aon in 2015 Q4 according to their latest regulatory filings, with 45 funds opening new positions, 164 increasing their positions, 208 reducing their positions, and 36 closing their positions.

Holders
506
Holders Change
+5
Holders Change %
+1%
% of All Funds
13.29%
Holding in Top 10
23
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+9.52%
% of All Funds
0.6%
New
45
Increased
164
Reduced
208
Closed
36
Calls
$13M
Puts
$8.19M
Net Calls
+$4.78M
Net Calls Change
+$771K
Name Market Value Shares Shares
Change
Shares
Change %
Simplex Trading
526
Simplex Trading
Illinois
-7,685 Closed
WCM Investment Management
527
WCM Investment Management
California
-7,471 Closed
LAM
528
Lingohr Asset Management
Germany
-4,600 Closed
MF
529
Magnetar Financial
Illinois
-4,578 Closed
Capstone Investment Advisors
530
Capstone Investment Advisors
New York
-4,400 Closed
Two Sigma Advisers
531
Two Sigma Advisers
New York
-3,621 Closed
TWI
532
Thomas White International
Illinois
-3,530 Closed
FBFS
533
First Business Financial Services
Wisconsin
-3,269 Closed
SIG
534
Schooner Investment Group
Pennsylvania
-3,000 Closed
BAS
535
Brown Advisory Securities
Maryland
-2,918 Closed
DWT
536
Dorsey & Whitney Trust
South Dakota
-2,540 Closed
AIM
537
Assured Investment Management
New York
-784 Closed
SSB
538
Sandy Spring Bank
Maryland
-95 Closed
FNBT
539
FineMark National Bank & Trust
Florida
-61 Closed
SIM
540
Sonora Investment Management
Arizona
-56 Closed
AW
541
Alpha Windward
Massachusetts
-44 Closed
VIA
542
Vident Investment Advisory
Georgia
-31 Closed
BCM
543
Brookstone Capital Management
Illinois
-17 Closed
TH
544
Timber Hill
Connecticut
MPWT
545
MassMutual Private Wealth & Trust
Connecticut
DPA
546
Delphi Private Advisors
California
$0 5 +5 New