1,254 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, 463 increasing their positions, 392 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,254
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
New York State Common Retirement Fund
76
New York State Common Retirement Fund
New York
$128M
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$124M
B
78
BloombergSen
Ontario, Canada
$116M
Russell Investments Group
79
Russell Investments Group
United Kingdom
$115M
WANY
80
Wealthspire Advisors (New York)
New York
$115M
Natixis Advisors
81
Natixis Advisors
Massachusetts
$114M
T. Rowe Price Investment Management
82
T. Rowe Price Investment Management
Maryland
$114M
Citadel Advisors
83
Citadel Advisors
Florida
$113M
DC
84
Davenport & Co
Virginia
$110M
Raymond James Financial
85
Raymond James Financial
Florida
$109M
DekaBank Deutsche Girozentrale
86
DekaBank Deutsche Girozentrale
Germany
$108M
Principal Financial Group
87
Principal Financial Group
Iowa
$106M
Ensign Peak Advisors
88
Ensign Peak Advisors
Utah
$104M
PCM
89
Prana Capital Management
Connecticut
$101M
Aviva
90
Aviva
United Kingdom
$99.6M
Verition Fund Management
91
Verition Fund Management
Connecticut
$97.4M
Lord, Abbett & Co
92
Lord, Abbett & Co
New Jersey
$96.9M
Citigroup
93
Citigroup
New York
$94.4M
AGA
94
Altrinsic Global Advisors
Connecticut
$94.3M
BCM
95
Bowie Capital Management
Texas
$92.5M
SI
96
Scharf Investments
California
$92M
Qube Research & Technologies (QRT)
97
Qube Research & Technologies (QRT)
United Kingdom
$89.9M
AllianceBernstein
98
AllianceBernstein
Tennessee
$86.3M
WIM
99
Weitz Investment Management
Nebraska
$85.2M
National Bank of Canada
100
National Bank of Canada
Quebec, Canada
$84.5M