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1,278 hedge funds and large institutions have $66.6B invested in Aon in 2025 Q4 according to their latest regulatory filings, with 154 funds opening new positions, 424 increasing their positions, 474 reducing their positions, and 100 closing their positions.

New
Increased
Maintained
Reduced
Closed

170% more call options, than puts

Call options by funds: $109M | Put options by funds: $40.4M

54% more first-time investments, than exits

New positions opened: 154 | Existing positions closed: 100

2% more funds holding

Funds holding: 1,2481,278 (+30)

1.7% more ownership

Funds ownership: 86.17%87.87% (+1.7%)

0% more capital invested

Capital invested by funds: $66.3B → $66.6B (+$330M)

4% less funds holding in top 10

Funds holding in top 10: 2726 (-1)

11% less repeat investments, than reductions

Existing positions increased: 424 | Existing positions reduced: 474

Holders
1,278
Holders Change
+30
Holders Change %
+2.4%
% of All Funds
15.55%
Holding in Top 10
26
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-3.7%
% of All Funds
0.32%
New
154
Increased
424
Reduced
474
Closed
100
Calls
$109M
Puts
$40.4M
Net Calls
+$68.7M
Net Calls Change
-$172M
Name Holding Trade Value Shares
Change
Change in
Stake
AGA
51
Altrinsic Global Advisors
Connecticut
$230M -$11.1M -31,679 -5%
SCA
52
Southpoint Capital Advisors
New York
$229M +$227M +650,000 New
Millennium Management
53
Millennium Management
New York
$225M +$49M +140,336 +28%
California Public Employees Retirement System
54
California Public Employees Retirement System
California
$215M -$34.8M -99,750 -14%
Adage Capital Partners
55
Adage Capital Partners
Massachusetts
$214M -$13.8M -39,500 -6%
Barclays
56
Barclays
United Kingdom
$208M -$29.7M -85,174 -13%
T. Rowe Price Associates
57
T. Rowe Price Associates
Maryland
$204M -$12.5M -35,748 -6%
OAC
58
OMERS Administration Corp
Ontario, Canada
$200M -$11.8M -33,938 -6%
Swiss National Bank
59
Swiss National Bank
Switzerland
$198M -$10.5M -29,960 -5%
Focus Partners Wealth
60
Focus Partners Wealth
Massachusetts
$193M +$152M +436,093 +396%
Fiera Capital (Canada)
61
Fiera Capital (Canada)
Quebec, Canada
$188M -$5.5M -15,752 -3%
William Blair & Company
62
William Blair & Company
Illinois
$175M -$11.7M -33,466 -6%
National Pension Service
63
National Pension Service
South Korea
$167M +$18.2M +52,077 +12%
Sumitomo Mitsui Trust Group
64
Sumitomo Mitsui Trust Group
Japan
$166M -$5.98M -17,135 -4%
VOYA Investment Management
65
VOYA Investment Management
Georgia
$165M -$33M -94,537 -17%
SEI Investments
66
SEI Investments
Pennsylvania
$163M +$31.6M +90,642 +24%
Arrowstreet Capital
67
Arrowstreet Capital
Massachusetts
$161M +$97.6M +279,467 +158%
Citadel Advisors
68
Citadel Advisors
Florida
$156M -$162M -465,334 -51%
CWG
69
C WorldWide Group
Denmark
$153M -$29.7M -85,128 -16%
AQR Capital Management
70
AQR Capital Management
Connecticut
$152M +$110M +315,785 +276%
BNP Paribas Financial Markets
71
BNP Paribas Financial Markets
France
$149M +$64.7M +185,296 +78%
DWA
72
Douglass Winthrop Advisors
New York
$139M -$3.24M -9,285 -2%
Balyasny Asset Management
73
Balyasny Asset Management
Illinois
$137M -$161M -459,702 -54%
RhumbLine Advisers
74
RhumbLine Advisers
Massachusetts
$135M -$3.92M -11,216 -3%
HTC
75
Haverford Trust Company
Pennsylvania
$124M -$10.1M -28,917 -8%