1,257 hedge funds and large institutions have $76.2B invested in Aon in 2025 Q1 according to their latest regulatory filings, with 169 funds opening new positions, 466 increasing their positions, 393 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,257
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
43
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$761M
Puts
$436M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1
$7.89B
2
$6.03B
3
$4.83B
4
$3.92B
5
$3.66B
6
$3.48B
7
$2.26B
8
$2.15B
9
$1.73B
10
$1.64B
11
$1.31B
12
$1.21B
13
$1.2B
14
$1.05B
15
$954M
16
$914M
17
$894M
18
$852M
19
$852M
20
$845M
21
$810M
22
$746M
23
$734M
24
$671M
25
$636M