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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
Chancellor Financial Group WB LP642$228.9K0.16%00.0%Unchanged
KCM Investment Advisors LLC636$226.8K0.01%+34+5.6%Added
Inscription Capital, LLC631$224.9K0.02%+631New
Balentine LLC627$223.6K0.01%+5+0.8%Added
Main Street Research LLC627$223.6K0.01%+7+1.1%Added
Canopy Partners, LLC623$222.1K0.07%+12+2.0%Added
Gitterman Wealth Management, LLC622$221.8K0.05%00.0%Unchanged
Fourth Dimension Wealth, LLC622$221.8K0.08%+622New
Westpac Banking Corp620$221.1K0.01%+33+5.6%Added
Seeds Investor LLC619$220.9K0.05%−11−1.7%Reduced
Mill Creek Capital Advisors, LLC615$219.3K0.00%+34+5.9%Added
Welch & Forbes LLC613$218.6K0.00%−200−24.6%Reduced
Flower City Capital613$218.6K0.12%−161−20.8%Reduced
Flagship Harbor Advisors, LLC611$217.8K0.01%+12+2.0%Added
Signature Estate & Investment Advisors LLC610$217.5K0.00%−2−0.3%Reduced
Beacon Investment Advisory Services, Inc.609$217.2K0.01%−30−4.7%Reduced
Lewis Asset Management, LLC609$217.2K0.09%00.0%Unchanged
McDonald Partners LLC608$216.8K0.06%00.0%Unchanged
Cornerstone Advisory, LLC608$216.8K0.02%+10+1.7%Added
TCI Wealth Advisors, Inc.608$216.8K0.01%+16+2.7%Added
Verus Capital Partners, LLC605$215.7K0.02%00.0%Unchanged
Axq Capital, LP601$214.3K0.08%+601New
Carlson Capital L P600$213.9K0.12%+600New
Catalyst Funds Management Pty Ltd600$213.9K0.03%+600New
Blue Rock Wealth Management LLC600$213.9K0.13%+600New
Resonant Capital Advisors, LLC595$212.2K0.01%+595New
Sunpointe, LLC593$211.6K0.08%00.0%Unchanged
Onefund, LLC591$210.7K0.14%+20+3.5%Added
Cromwell Holdings LLC588$209.7K0.11%00.0%Unchanged
HCR Wealth Advisors581$209.6K0.02%−1−0.2%Reduced
Fisher Asset Management, LLC586$209.1K0.00%−186−24.1%Reduced
Natural Investments, LLC587$209.0K0.05%−2−0.3%Reduced
Options Solutions, LLC578$206.1K0.16%00.0%Unchanged
Acorn Creek Capital LLC578$206.0K0.08%+4+0.7%Added
Grove Street Fiduciary, LLC576$205.4K0.10%00.0%Unchanged
Genesis Private Wealth, LLC575$205.0K0.09%−14−2.4%Reduced
Colonial Trust Advisors575$205.0K0.02%00.0%Unchanged
Boston Private Wealth LLC571$203.6K0.01%−58−9.2%Reduced
D'Orazio & Associates, Inc.571$203.6K0.03%+5+0.9%Added
Focus Financial Network, Inc.570$203.1K0.01%−7−1.2%Reduced
Aprio Wealth Management, LLC567$202.0K0.02%+567New
Fort Sheridan Advisors LLC566$201.8K0.03%+566New
Carolina Wealth Advisors, LLC557$198.6K0.09%00.0%Unchanged
Walleye Capital LLC546$194.7K0.00%−1,710−75.8%Reduced
High Note Wealth, LLC546$194.7K0.04%00.0%Unchanged
Oakworth Capital, Inc.517$184.4K0.01%+65+14.4%Added
Sofos Investments, Inc.501$178.6K0.04%+501New
Principal Securities, Inc.500$178.3K0.00%−12−2.3%Reduced
Addison Advisors LLC500$178.3K0.04%00.0%Unchanged
Ameriflex Group, Inc.500$178.3K0.07%+250+100.0%Added
Financial Freedom, LLC492$175.3K0.09%00.0%Unchanged
Ameritas Advisory Services, LLC489$174.5K0.01%+214+77.8%Added
Cary Street Partner Investment Advisory LLC476$169.7K0.07%+239+100.8%Added
Smithfield Trust Co466$164.0K0.01%00.0%Unchanged
Capital Analysts, LLC450$161.0K0.00%00.0%Unchanged
Manchester Capital Management LLC432$154.0K0.02%−10−2.3%Reduced
BankPlus Trust Department430$153.3K0.04%+430New
Rossby Financial, LCC423$152.3K0.05%+17+4.2%Added
Advisors Asset Management, Inc.424$151.2K0.00%−11−2.5%Reduced
Geneos Wealth Management Inc.423$150.8K0.00%−201−32.2%Reduced
Matrix Trust Co422$150.0K0.02%+28+7.1%Added
CVA Family Office, LLC419$149.4K0.02%+18+4.5%Added
Westfuller Advisors, LLC418$149.1K0.07%+418New
Twin Tree Management, LP411$146.6K0.01%+411New
American National Bank409$145.8K0.01%00.0%Unchanged
Eastern Bank394$140.5K0.00%+43+12.3%Added
Boreal Capital Management LLC392$139.8K0.11%−42−9.7%Reduced
Trust Co of Vermont389$138.7K0.01%+147+60.7%Added
Caitong International Asset Management Co., Ltd379$135.1K0.09%+345+1,014.7%Added
Clear Street Markets LLC372$132.6K0.04%+227+156.6%Added
IFP Advisors, Inc361$128.7K0.00%+261+261.0%Added
Root Financial Partners, LLC343$122.3K0.01%+343New
S&T Bank336$119.8K0.03%00.0%Unchanged
Thurston, Springer, Miller, Herd & Titak, Inc.328$117.0K0.23%−116−26.1%Reduced
JPL Wealth Management, LLC323$115.2K0.03%+323New
Newbridge Financial Services Group, Inc.314$112.0K0.02%+304+3,040.0%Added
IMA Wealth, Inc.312$111.3K0.01%+89+39.9%Added
Spire Wealth Management311$110.9K0.00%−3−1.0%Reduced
Johnson Financial Group, Inc.308$109.8K0.00%+308New
Horizon Bancorp Inc290$103.0K0.05%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA285$101.6K0.02%+80+39.0%Added
Hemington Wealth Management278$99.0K0.01%+27+10.8%Added
Golden State Wealth Management, LLC271$96.6K0.01%+3+1.1%Added
Covestor Ltd222$79.0K0.04%+118+113.5%Added
Alerus Financial NA220$78.4K0.00%+20+10.0%Added
Cloud Capital Management, LLC209$74.0K0.04%+209New
Lavaca Capital LLC200$71.3K0.01%00.0%Unchanged
Arlington Trust Co LLC200$71.3K0.01%00.0%Unchanged
Rosenberg Matthew Hamilton199$71.0K0.02%00.0%Unchanged
Harbour Investments, Inc.191$68.1K0.00%+16+9.1%Added
AdvisorNet Financial, Inc187$66.7K0.00%−1−0.5%Reduced
Hollencrest Capital Management185$66.0K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC181$64.5K0.01%−100−35.6%Reduced
Orion Capital Management LLC176$62.8K0.02%00.0%Unchanged
Maseco LLP172$61.3K0.00%00.0%Unchanged
Pin Oak Investment Advisors Inc162$57.8K0.04%00.0%Unchanged
West Financial Advisors, LLC162$57.8K0.01%+162New
Nemes Rush Group LLC155$55.3K0.01%00.0%Unchanged
First United Bank Trust150$53.5K0.02%00.0%Unchanged
DAGCO, Inc.150$53.5K0.01%00.0%Unchanged