1,256 hedge funds and large institutions have $66.5B invested in Aon in 2025 Q4 according to their latest regulatory filings, with 142 funds opening new positions, 419 increasing their positions, 472 reducing their positions, and 100 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

0% more capital invested

Capital invested by funds: $66.2B → $66.5B (+$232M)

4% less funds holding in top 10

Funds holding in top 10: 2726 (-1)

11% less repeat investments, than reductions

Existing positions increased: 419 | Existing positions reduced: 472

Holders
1,256
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$108M
Puts
$37.4M
Net Calls
Net Calls Change

Top Sellers

1 -$356M
2 -$225M
3 -$220M
4
Morgan Stanley
Morgan Stanley
New York
-$198M
5
Neuberger Berman Group
Neuberger Berman Group
New York
-$184M
Name Holding Trade Value Shares
Change
Change in
Stake
PIM
501
Plato Investment Management
Australia
$1.67M
BIG
502
Brooklyn Investment Group
New York
$1.66M
GCM
503
Greenland Capital Management
New York
$1.66M
MAS
504
Meeder Advisory Services
Ohio
$1.65M
LJAC
505
L.J. Altfest & Co
New York
$1.64M
FA
506
Fiduciary Alliance
South Carolina
$1.63M
PFBT
507
Parkside Financial Bank & Trust
Missouri
$1.62M
OTL
508
Oak Thistle LLC
New York
$1.62M
MF
509
Magnetar Financial
Illinois
$1.61M
EFSCE
510
Enterprise Financial Services Corp (EFSC)
Missouri
$1.6M
GWM
511
Gibbs Wealth Management
Georgia
$1.59M
SC
512
Syon Capital
California
$1.59M
QCG
513
Quadrant Capital Group
Ohio
$1.57M
CIM
514
Cambria Investment Management
California
$1.57M
TWC
515
TD Waterhouse Canada
Ontario, Canada
$1.57M
BP
516
BBR Partners
New York
$1.55M
IWA
517
Icon Wealth Advisors
Texas
$1.54M
CI
518
CX Institutional
Indiana
$1.53M
CNBT
519
Canandaigua National Bank & Trust
New York
$1.51M
O
520
Ossiam
France
$1.5M
AWA
521
Arkadios Wealth Advisors
Georgia
$1.5M
PWAM
522
Private Wealth Asset Management
Iowa
$1.49M
VI
523
Vestcor Inc
New Brunswick, Canada
$1.49M
NB
524
NBT Bank
New York
$1.49M
AI
525
Accredited Investors
Minnesota
$1.48M