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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, Q3 2025

Institutional positions in Aon plc as of Sep 30, 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
1,255
+42 vs. Q2 2025
Shares held
186.0M
−1.74M (−0.9%) vs. Q2 2025
Total value
$66.3B
−$638.0M (−1.0%) vs. Q2 2025
New holders
127
477 more added
Sold out
85
401 more reduced

20 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: 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 holdersQ3 2025: 1,255 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 heldQ3 2025: $66.3B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2025.

Institutions holding AON in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
United Capital Financial Advisers, LLC5,384$1.92M0.01%−191−3.4%Reduced
Vident Advisory, LLC5,321$1.90M0.02%+832+18.5%Added
Alliance Wealth Advisors, LLC5,237$1.87M0.44%−2,190−29.5%Reduced
Quadrant Capital Group LLC5,216$1.86M0.06%−1,450−21.8%Reduced
Personal Cfo Solutions, LLC5,194$1.85M0.33%−209−3.9%Reduced
Fischer Financial Services, Inc.5,187$1.85M0.50%−126−2.4%Reduced
NorthRock Partners, LLC5,151$1.84M0.03%+552+12.0%Added
Welch Group, LLC5,130$1.83M0.07%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd5,129$1.83M0.04%+5,129New
Bayesian Capital Management, LP5,093$1.82M0.37%+2,900+132.2%Added
Cohen Klingenstein LLC5,000$1.78M0.06%00.0%Unchanged
Winton Group Ltd4,990$1.78M0.07%+4,990New
Virtus Investment Advisers, Inc.4,962$1.77M0.51%+4,962New
Triumph Capital Management4,949$1.76M0.48%00.0%Unchanged
CAPROCK Group, Inc.4,773$1.75M0.04%+4,773New
Crossmark Global Holdings, Inc.4,895$1.75M0.03%−627−11.4%Reduced
Jain Global LLC4,858$1.73M0.02%+4,858New
Romano Brothers and Company4,856$1.73M0.20%−1,315−21.3%Reduced
Brookstone Capital Management4,853$1.73M0.02%−751−13.4%Reduced
Jones Financial Companies LLLP4,780$1.70M0.00%+236+5.2%Added
Fiduciary Alliance LLC4,731$1.69M0.11%+168+3.7%Added
Coppell Advisory Solutions LLC4,755$1.69M0.18%+4,755New
Dark Forest Capital Management LP4,726$1.69M0.06%+1,014+27.3%Added
Plato Investment Management Ltd4,697$1.66M0.11%−9−0.2%Reduced
Brown Brothers Harriman & Co4,617$1.65M0.01%+484+11.7%Added
Snowden Capital Advisors LLC4,608$1.64M0.04%−214−4.4%Reduced
Parkside Financial Bank & Trust4,587$1.64M0.13%−3,840−45.6%Reduced
Enterprise Financial Services Corp4,490$1.60M0.83%−103−2.2%Reduced
Canandaigua National Bank & Trust Co4,483$1.60M0.14%−20.0%Reduced
Meeder Advisory Services, Inc.4,482$1.60M0.07%+283+6.7%Added
BBR Partners, LLC4,390$1.57M0.09%+9+0.2%Added
Grove Bank & Trust4,374$1.56M0.18%−953−17.9%Reduced
TD Waterhouse Canada Inc.4,296$1.54M0.01%+158+3.8%Added
Circle Wealth Management, LLC4,282$1.53M0.03%+92+2.2%Added
Private Wealth Asset Management, LLC4,260$1.52M0.18%00.0%Unchanged
Syon Capital LLC4,246$1.51M0.08%+398+10.3%Added
Clune & Associates, Ltd.4,245$1.51M0.38%00.0%Unchanged
Virtu Financial LLC4,239$1.51M0.08%+4,239New
Vestcor Inc4,230$1.51M0.05%00.0%Unchanged
NBT Bank N A4,219$1.50M0.10%−35−0.8%Reduced
HighPoint Advisor Group LLC4,215$1.50M0.07%−75−1.7%Reduced
Accredited Investors Inc.4,194$1.50M0.08%−28−0.7%Reduced
FJ Capital Management LLC4,176$1.49M0.16%+4,176New
MUFG Securities EMEA plc4,127$1.47M0.04%+3,490+547.9%Added
Applied Finance Capital Management, LLC4,087$1.46M0.10%+24+0.6%Added
Logan Capital Management Inc4,078$1.45M0.06%+2,633+182.2%Added
Chesley Taft & Associates LLC4,072$1.45M0.06%00.0%Unchanged
Dynasty Wealth Management, LLC3,997$1.43M0.02%−604−13.1%Reduced
Ellis Investment Partners, LLC3,985$1.42M0.26%00.0%Unchanged
Greenleaf Trust3,983$1.42M0.01%−515−11.4%Reduced
Auxier Asset Management3,967$1.41M0.20%00.0%Unchanged
Mattern Capital Management, LLC3,941$1.41M0.17%+704+21.7%Added
Huntington National Bank3,936$1.40M0.01%−171−4.2%Reduced
Catalyst Capital Advisors LLC3,934$1.40M0.03%−19−0.5%Reduced
Nordwand Advisors, LLC3,910$1.39M0.22%+2,325+146.7%Added
Garrison Bradford & Associates Inc3,900$1.39M1.49%00.0%Unchanged
LGT Fund Management Co Ltd.3,818$1.37M0.11%−77−2.0%Reduced
Mission Wealth Management, LP3,849$1.37M0.03%−144−3.6%Reduced
T. Rowe Price Investment Management, Inc.3,768$1.34M0.00%−284,147−98.7%Reduced
Sompo Asset Management Co., Ltd.3,710$1.32M0.23%−450−10.8%Reduced
Rothschild Investment LLC3,679$1.31M0.07%+42+1.2%Added
MOKAN Wealth Management Inc.3,649$1.30M0.66%−65−1.8%Reduced
Voleon Capital Management LP3,652$1.30M0.03%+2,155+144.0%Added
QRG Capital Management, Inc.3,650$1.30M0.02%−318−8.0%Reduced
Pekin Hardy Strauss, Inc.3,636$1.30M0.13%−75−2.0%Reduced
Sageworth Trust Co3,628$1.29M0.06%+3,628New
Silver Lake Advisory, LLC3,623$1.29M0.51%+3,623New
Stance Capital LLC3,613$1.29M0.47%−69−1.9%Reduced
Beacon Pointe Advisors, LLC3,589$1.28M0.01%+294+8.9%Added
Waterfront Wealth Inc.3,738$1.28M0.26%+1,075+40.4%Added
XTX Topco Ltd3,558$1.27M0.07%+3,558New
First American Bank3,540$1.26M0.08%00.0%Unchanged
Canton Hathaway, LLC3,500$1.25M0.24%00.0%Unchanged
Dorsey & Whitney Trust CO LLC3,490$1.24M0.07%+149+4.5%Added
LGT Group Foundation3,420$1.23M0.01%+20+0.6%Added
FourThought Financial Partners, LLC3,441$1.23M0.11%+686+24.9%Added
Raiffeisen Bank International AG3,430$1.22M0.02%+1,819+112.9%Added
ABN AMRO Bank N.V.3,402$1.21M0.01%00.0%Unchanged
Rinkey Investments3,376$1.20M0.32%+3,376New
Value Partners Investments Inc.3,353$1.20M0.10%+542+19.3%Added
Pensionmark Financial Group, LLC3,349$1.19M0.02%−3−0.1%Reduced
Americana Partners, LLC3,342$1.19M0.04%−112−3.2%Reduced
Pictet & Cie (Europe) SA3,335$1.19M0.02%−52−1.5%Reduced
Private Trust Co NA3,334$1.19M0.10%−10.0%Reduced
Duncker Streett & Co Inc3,289$1.17M0.20%00.0%Unchanged
ProVise Management Group, LLC3,269$1.17M0.09%−600−15.5%Reduced
First Financial Bankshares Inc3,230$1.15M0.02%+856+36.1%Added
Comprehensive Financial Management LLC3,197$1.14M0.03%00.0%Unchanged
Rathbone Brothers plc3,174$1.13M0.00%+170+5.7%Added
U.S. Capital Wealth Advisors, LLC3,165$1.13M0.03%+60+1.9%Added
Curated Wealth Partners LLC3,147$1.12M0.14%+72+2.3%Added
Cambria Investment Management, L.P.3,112$1.11M0.07%+3,112New
Marble Harbor Investment Counsel, LLC3,110$1.11M0.12%−15−0.5%Reduced
Citrine Capital LLC3,100$1.11M0.51%00.0%Unchanged
Frank, Rimerman Advisors LLC3,087$1.10M0.07%−45−1.4%Reduced
Boothbay Fund Management, LLC3,065$1.09M0.03%+3,065New
Henshaw Capital LLC3,058$1.09M0.04%+3,058New
Arthur M. Cohen & Associates, LLC3,020$1.08M0.18%00.0%Unchanged
Northwest & Ethical Investments L.P.3,029$1.07M0.03%+400+15.2%Added
RBF Capital, LLC3,000$1.07M0.05%00.0%Unchanged