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Aon plc

AON
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000315293

In the last 90 days, Aon plc insiders filed 1 open-market purchase and 3 sales; 1,273 institutions reported holding it in 13F filings for Q2 2026, worth $63.9B in total; 4 superinvestors hold it, including Viking Global Investors and Baupost Group.

13F holders, Q1 2025

Institutional positions in Aon plc as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,276
+99 vs. Q4 2024
Shares held
193.6M
+2.23M (+1.2%) vs. Q4 2024
Total value
$77.1B
+$8.37B (+12.2%) vs. Q4 2024
New holders
168
469 more added
Sold out
69
398 more reduced

19 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 1,276 institutions
Q1 2021: 919 institutionsQ2 2021: 912 institutionsQ3 2021: 917 institutionsQ4 2021: 995 institutionsQ1 2022: 985 institutionsQ2 2022: 966 institutionsQ3 2022: 950 institutionsQ4 2022: 1,034 institutionsQ1 2023: 1,014 institutionsQ2 2023: 1,025 institutionsQ3 2023: 1,049 institutionsQ4 2023: 1,067 institutionsQ1 2024: 1,087 institutionsQ2 2024: 1,111 institutionsQ3 2024: 1,149 institutionsQ4 2024: 1,196 institutionsQ1 2025: 1,276 institutionsQ2 2025: 1,233 institutionsQ3 2025: 1,255 institutionsQ4 2025: 1,289 institutionsQ1 2026: 1,266 institutionsQ2 2026: 1,273 institutions
Value heldQ1 2025: $77.1B
Q1 2021: $51.4BQ2 2021: $53.4BQ3 2021: $57.2BQ4 2021: $56.5BQ1 2022: $61.2BQ2 2022: $49.5BQ3 2022: $48.4BQ4 2022: $52.6BQ1 2023: $55.7BQ2 2023: $61.2BQ3 2023: $56.4BQ4 2023: $49.8BQ1 2024: $57.4BQ2 2024: $55.4BQ3 2024: $66.1BQ4 2024: $69.1BQ1 2025: $77.1BQ2 2025: $69.3BQ3 2025: $66.3BQ4 2025: $66.7BQ1 2026: $60.6BQ2 2026: $63.9B
Institutions holding AON and their total value by quarter
QuarterHoldersValue
Q2 20261,273$63.9B
Q1 20261,266$60.6B
Q4 20251,289$66.7B
Q3 20251,255$66.3B
Q2 20251,233$69.3B
Q1 20251,276$77.1B
Q4 20241,196$69.1B
Q3 20241,149$66.1B
Q2 20241,111$55.4B
Q1 20241,087$57.4B
Q4 20231,067$49.8B
Q3 20231,049$56.4B
Q2 20231,025$61.2B
Q1 20231,014$55.7B
Q4 20221,034$52.6B
Q3 2022950$48.4B
Q2 2022966$49.5B
Q1 2022985$61.2B
Q4 2021995$56.5B
Q3 2021917$57.2B
Q2 2021912$53.4B
Q1 2021919$51.4B

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2024.

Institutions holding AON in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Union Heritage Capital, LLC9,967$3.98M1.48%00.0%Unchanged
Allspring Global Investments Holdings, LLC9,938$3.96M0.01%−57−0.6%Reduced
Verdence Capital Advisors LLC9,929$3.96M0.30%−295−2.9%Reduced
Capitolis Liquid Global Markets LLC9,750$3.89M0.03%−1,150−10.6%Reduced
Cumberland Partners Ltd9,730$3.88M0.30%+9,730New
Ostrum Asset Management9,651$3.85M0.20%−180−1.8%Reduced
Anderson Hoagland & Co10,684$3.85M0.46%−212−1.9%Reduced
Assetmark, Inc9,634$3.84M0.01%+692+7.7%Added
Crestwood Advisors Group LLC9,610$3.84M0.07%−135−1.4%Reduced
Busey Wealth Management9,567$3.82M0.13%+22+0.2%Added
CX Institutional9,545$3.81M0.14%−451−4.5%Reduced
Thrivent Financial for Lutherans9,588$3.81M0.01%−20.0%Reduced
LBMC Investment Advisors, LLC9,391$3.75M0.29%−11,357−54.7%Reduced
Mount Yale Investment Advisors, LLC9,252$3.69M0.32%−198−2.1%Reduced
Kampmann Melissa S.9,235$3.69M2.91%+15+0.2%Added
Maryland State Retirement & Pension System9,179$3.66M0.09%−2,040−18.2%Reduced
MidWestOne Financial Group, Inc.9,103$3.63M0.52%00.0%Unchanged
Vestmark Advisory Solutions, Inc.8,925$3.56M0.09%+4,519+102.6%Added
Schechter Investment Advisors, LLC8,907$3.55M0.29%+2,117+31.2%Added
Scotia Capital Inc.8,840$3.53M0.02%−1,830−17.2%Reduced
Cary Street Partners Financial LLC8,832$3.52M0.11%−154−1.7%Reduced
Jensen Investment Management Inc8,830$3.52M0.04%00.0%Unchanged
Jump Financial, LLC8,809$3.52M0.05%+6,682+314.2%Added
Intech Investment Management LLC8,757$3.49M0.04%−7,937−47.5%Reduced
MAI Capital Management8,675$3.46M0.03%−163−1.8%Reduced
Progressive Investment Management Corp8,612$3.44M0.96%−159−1.8%Reduced
Kathmere Capital Management, LLC8,533$3.41M0.29%−914−9.7%Reduced
Cambridge Investment Research Advisors, Inc.8,436$3.37M0.01%−20−0.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund8,353$3.33M0.01%+1,795+27.4%Added
Capital Group Investment Management Pte. Ltd.8,348$3.33M0.68%00.0%Unchanged
Mercer Global Advisors Inc8,334$3.33M0.01%−4,209−33.6%Reduced
Icon Wealth Advisors, LLC8,260$3.30M0.27%+7,837+1,852.7%Added
Banque Cantonale Vaudoise8,226$3.28M0.14%+8,226New
MV Capital Management, Inc.8,141$3.25M0.35%−95−1.2%Reduced
Zions Bancorporation, National Association8,107$3.24M0.20%+8,107New
Alliance Wealth Advisors, LLC8,095$3.23M0.84%+5,965+280.0%Added
Ascent Group, LLC8,034$3.21M0.14%+2,316+40.5%Added
Nebula Research & Development LLC8,003$3.19M0.30%+8,003New
GTS Securities LLC7,963$3.18M0.14%+6,371+400.2%Added
Exencial Wealth Advisors, LLC7,862$3.14M0.12%−673−7.9%Reduced
Integrated Wealth Concepts LLC7,848$3.13M0.04%+2,418+44.5%Added
VestGen Advisors, LLC7,783$3.11M0.14%+7,783New
Resources Investment Advisors, LLC.7,773$3.10M0.04%−1,316−14.5%Reduced
South Dakota Investment Council7,770$3.10M0.06%00.0%Unchanged
Oak Thistle LLC7,768$3.10M0.62%+7,768New
HB Wealth Management, LLC7,749$3.09M0.03%+2,436+45.8%Added
Walleye Capital LLC7,700$3.07M0.03%+7,700New
Journey Advisory Group, LLC7,689$3.07M0.25%+7,689New
Equitable Trust Co7,679$3.06M0.17%+502+7.0%Added
NewEdge Wealth, LLC7,552$3.01M0.05%+3,090+69.3%Added
Ninety One North America, Inc.7,483$2.99M0.20%+2,932+64.4%Added
Dai-Ichi Life Insurance Company, Ltd7,456$2.98M0.09%00.0%Unchanged
Brighton Jones LLC7,308$2.92M0.09%+29+0.4%Added
Keybank National Association7,274$2.90M0.01%−391−5.1%Reduced
Illinois Municipal Retirement Fund7,257$2.90M0.04%00.0%Unchanged
LGT Fund Management Co Ltd.7,203$2.87M0.26%−3,330−31.6%Reduced
Axxcess Wealth Management, LLC7,180$2.87M0.08%−10−0.1%Reduced
Beacon Financial Group7,168$2.86M0.31%+10+0.1%Added
Larson Financial Group LLC7,162$2.86M0.14%+705+10.9%Added
Vinva Investment Management Ltd7,102$2.80M0.11%−1,194−14.4%Reduced
Mitchell Capital Management Co6,913$2.76M0.53%+171+2.5%Added
Salvus Wealth Management, LLC6,876$2.74M1.72%+1,158+20.3%Added
Agf Management Ltd6,870$2.74M0.01%+280+4.2%Added
Allstate Corp6,856$2.74M0.08%+928+15.7%Added
Crossmark Global Holdings, Inc.6,836$2.73M0.05%−855−11.1%Reduced
Nomura Holdings Inc6,828$2.72M0.01%−299−4.2%Reduced
Gibbs Wealth Management6,809$2.72M0.66%+4,494+194.1%Added
Lindbrook Capital, LLC6,807$2.72M0.25%+27+0.4%Added
Anchor Capital Advisors LLC6,792$2.71M0.08%−86−1.3%Reduced
Generali Asset Management SPA SGR6,666$2.66M0.07%+4,566+217.4%Added
RSM US Wealth Management LLC6,620$2.64M0.04%−145−2.1%Reduced
ISAM Funds (UK) Ltd6,559$2.62M1.29%+3,157+92.8%Added
Lafayette Investments, Inc.6,544$2.61M0.55%+56+0.9%Added
Diversified Enterprises, LLC6,532$2.61M0.22%+6,532New
Norden Group LLC6,474$2.58M0.30%+5,818+886.9%Added
Wiley Bros.-Aintree Capital, LLC6,548$2.58M0.03%+1,436+28.1%Added
EP Wealth Advisors, LLC6,460$2.58M0.02%+2,435+60.5%Added
Brown Advisory Inc6,412$2.56M0.00%+149+2.4%Added
Private Advisor Group, LLC6,359$2.54M0.02%+868+15.8%Added
Delta Global Management LP6,305$2.52M0.18%+6,305New
Aire Advisors, LLC6,234$2.49M0.52%+11+0.2%Added
Romano Brothers and Company6,131$2.45M0.32%00.0%Unchanged
WoodTrust Financial Corp6,085$2.43M0.34%00.0%Unchanged
Ancora Advisors, LLC6,020$2.40M0.05%00.0%Unchanged
United Capital Financial Advisers, LLC6,016$2.40M0.02%+391+7.0%Added
Lido Advisors, LLC5,946$2.37M0.01%−810−12.0%Reduced
Tower Research Capital LLC (TRC)5,921$2.36M0.07%−6,465−52.2%Reduced
Coldstream Capital Management Inc5,906$2.36M0.05%+12+0.2%Added
Tokio Marine Asset Management Co Ltd5,865$2.34M0.08%+398+7.3%Added
Mesirow Financial Investment Management, Inc.5,809$2.32M0.04%+114+2.0%Added
SG Americas Securities, LLC5,796$2.31M0.01%+557+10.6%Added
Personal Cfo Solutions, LLC5,784$2.31M0.47%+2,510+76.7%Added
Kentucky Retirement Systems Insurance Trust Fund5,710$2.28M0.16%−4,951−46.4%Reduced
Congress Wealth Management LLC5,708$2.28M0.03%+1,440+33.7%Added
Bryn Mawr Trust Co5,567$2.22M0.04%−182−3.2%Reduced
Magnetar Financial LLC5,536$2.21M0.03%+5,536New
Twinbeech Capital LP5,527$2.21M0.04%+5,527New
Fiduciary Alliance LLC5,522$2.20M0.22%−2,051−27.1%Reduced
Everence Capital Management Inc5,520$2.20M0.15%+150+2.8%Added
Campbell & CO Investment Adviser LLC5,514$2.20M0.17%−11,829−68.2%Reduced