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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 2026

Institutional positions in Aon plc as of Mar 31, 2026. 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
1,265
−3 vs. Q4 2025
Shares held
187.6M
+22.2M (+13.4%) vs. Q4 2025
Total value
$60.6B
+$2.27B (+3.9%) vs. Q4 2025
New holders
142
485 more added
Sold out
145
417 more reduced

20 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,265 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: 1,024 institutionsQ3 2023: 1,048 institutionsQ4 2023: 1,066 institutionsQ1 2024: 1,086 institutionsQ2 2024: 1,110 institutionsQ3 2024: 1,148 institutionsQ4 2024: 1,195 institutionsQ1 2025: 1,275 institutionsQ2 2025: 1,232 institutionsQ3 2025: 1,254 institutionsQ4 2025: 1,288 institutionsQ1 2026: 1,265 institutionsQ2 2026: 1,273 institutions
Value heldQ1 2026: $60.6B
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 20261,265$60.6B
Q4 20251,288$66.7B
Q3 20251,254$66.3B
Q2 20251,232$69.3B
Q1 20251,275$77.1B
Q4 20241,195$69.1B
Q3 20241,148$66.1B
Q2 20241,110$55.4B
Q1 20241,086$57.4B
Q4 20231,066$49.8B
Q3 20231,048$56.4B
Q2 20231,024$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 2026

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2025.

Institutions holding AON in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Boreal Capital Management LLC211$68.1K0.06%−210−49.9%Reduced
Johnson Financial Group, Inc.215$69.4K0.00%−90−29.5%Reduced
Basecamp Wealth Advisors LLC235$75.9K0.02%+47+25.0%Added
Horizon Bancorp Inc240$77.0K0.04%00.0%Unchanged
Ameriflex Group, Inc.250$80.7K0.04%−1−0.4%Reduced
JPL Wealth Management, LLC260$83.9K0.02%+260New
Eastern Bank269$86.8K0.00%−101−27.3%Reduced
Caitong International Asset Management Co., Ltd272$87.8K0.02%+271+27,100.0%Added
Capula Management Ltd273$88.1K0.00%+273New
Towarzystwo Funduszy Inwestycyjnych Pzu SA285$92.0K0.03%00.0%Unchanged
Owl Creek Wealth Partners LLC287$92.6K0.03%+287New
IMA Wealth, Inc.312$100.7K0.01%00.0%Unchanged
MidFirst Bank318$102.6K0.01%+1+0.3%Added
S&T Bank342$110.4K0.04%+6+1.8%Added
LRI Investments, LLC370$119.5K0.01%−261−41.4%Reduced
Opal Wealth Advisors, LLC384$123.9K0.03%+384New
Thurston, Springer, Miller, Herd & Titak, Inc.391$126.2K0.05%00.0%Unchanged
United Community Bank398$128.5K0.04%+350+729.2%Added
Spire Wealth Management400$129.1K0.00%+69+20.8%Added
Capital Analysts, LLC402$130.0K0.00%−31−7.2%Reduced
Asset Dedication, LLC409$132.0K0.01%−271−39.9%Reduced
Kayne Anderson Rudnick Investment Management LLC409$132.2K0.00%−88−17.7%Reduced
American National Bank412$133.0K0.01%−3−0.7%Reduced
Bayforest Capital Ltd423$136.5K0.15%+413+4,130.0%Added
BankPlus Trust Department430$138.8K0.04%00.0%Unchanged
Manchester Capital Management LLC441$142.3K0.02%−27−5.8%Reduced
Atlantic Union Bankshares Corp451$145.6K0.00%−1,173−72.2%Reduced
Smithfield Trust Co466$150.0K0.01%00.0%Unchanged
Beacon Investment Advisory Services, Inc.484$156.2K0.01%−125−20.5%Reduced
Harbour Investments, Inc.489$158.1K0.00%+70+16.7%Added
Financial Freedom, LLC492$158.7K0.08%00.0%Unchanged
Goodman Advisory Group, LLC496$160.1K0.04%00.0%Unchanged
Addison Advisors LLC500$161.4K0.04%00.0%Unchanged
Sofos Investments, Inc.501$161.7K0.03%00.0%Unchanged
CVA Family Office, LLC522$168.5K0.02%+97+22.8%Added
Federated Hermes, Inc.525$169.5K0.00%−392−42.7%Reduced
Dougherty Wealth Advisers LLC530$171.1K0.11%−129−19.6%Reduced
Carolina Wealth Advisors, LLC557$179.8K0.07%00.0%Unchanged
Oakworth Capital, Inc.559$180.4K0.01%00.0%Unchanged
High Note Wealth, LLC559$180.4K0.04%+16+2.9%Added
IFP Advisors, Inc562$181.4K0.00%+97+20.9%Added
Onefund, LLC589$189.3K0.12%−38−6.1%Reduced
Colonial Trust Advisors587$189.5K0.01%+12+2.1%Added
Cromwell Holdings LLC588$189.8K0.11%00.0%Unchanged
Hilltop National Bank591$190.8K0.05%+18+3.1%Added
Axiom Investment Management LLC603$194.6K0.15%+603New
Vanguard National Trust Co608$196.3K0.01%+608New
Massmutual Trust Co FSB617$199.2K0.01%+21+3.5%Added
Trust Point Inc.622$200.8K0.02%−313−33.5%Reduced
Main Street Research LLC622$200.8K0.01%−199−24.2%Reduced
Signature Estate & Investment Advisors LLC623$201.1K0.00%+7+1.1%Added
JM2 Capital Inc.626$202.1K0.17%00.0%Unchanged
Cornerstone Advisory, LLC631$203.7K0.02%+23+3.8%Added
Nations Financial Group Inc,631$203.9K0.01%−23−3.5%Reduced
Allegiance Financial Group Advisory Services LLC632$204.0K0.04%+632New
Howard Capital Management Inc.635$205.0K0.00%−621−49.4%Reduced
CrossGen Wealth, LLC636$205.3K0.18%00.0%Unchanged
McLean Asset Management Corp638$205.9K0.04%−72−10.1%Reduced
Dover Advisors, LLC641$206.9K0.09%−2−0.3%Reduced
Chancellor Financial Group WB LP642$207.2K0.15%00.0%Unchanged
Purpose Unlimited Inc.642$207.2K0.01%00.0%Unchanged
Appleton Partners Inc645$208.0K0.01%00.0%Unchanged
ARS Investment Partners, LLC645$208.2K0.01%00.0%Unchanged
SmartHarvest Portfolios, LLC647$208.8K0.09%−167−20.5%Reduced
Matrix Asset Advisors Inc648$209.2K0.02%00.0%Unchanged
KCM Investment Advisors LLC651$210.1K0.01%+38+6.2%Added
Center for Financial Planning, Inc.653$210.8K0.02%00.0%Unchanged
Hopwood Financial Services, Inc.660$213.0K0.14%00.0%Unchanged
Cary Street Partner Investment Advisory LLC660$213.0K0.05%+352+114.3%Added
REAP Financial Group, LLC660$213.1K0.04%+1+0.2%Added
Uhlmann Price Securities, LLC664$214.4K0.01%+13+2.0%Added
Natural Investments, LLC672$216.0K0.05%+42+6.7%Added
J. Goldman & Co LP675$217.9K0.01%+675New
Fragasso Group Inc.669$218.2K0.01%−24−3.5%Reduced
Granite Group Advisors, LLC682$219.9K0.13%00.0%Unchanged
Optas, LLC682$220.1K0.03%+55+8.8%Added
Simplex Trading, LLC684$220.8K0.01%+684New
Adelphi Trust Co684$220.8K0.18%+684New
Alpha Family Trust690$222.7K0.11%00.0%Unchanged
Defiance ETFs, LLC690$222.7K0.00%+690New
Trust Co of Oklahoma692$223.4K0.07%−60−8.0%Reduced
River Wealth Advisors LLC701$226.3K0.03%+3+0.4%Added
Versant Capital Management, Inc707$228.2K0.02%+205+40.8%Added
New Capital Management LP707$228.2K0.06%00.0%Unchanged
Leonard Rickey Investment Advisors P.L.L.C.709$228.9K0.04%+709New
Clifford Group, LLC710$229.3K0.18%00.0%Unchanged
Steinberganna Wealth Management712$229.8K0.11%00.0%Unchanged
Sendero Wealth Management, LLC716$231.1K0.03%−1,690−70.2%Reduced
Patton Fund Management, Inc.719$232.1K0.04%+64+9.8%Added
Leslie Global Wealth, LLC724$233.7K0.12%+1+0.1%Added
Alpine Bank Wealth Management725$234.0K0.03%00.0%Unchanged
Quadcap Wealth Management, LLC726$234.3K0.03%+68+10.3%Added
Arlington Partners LLC730$235.6K0.47%+730New
Camden National Bank733$236.6K0.03%00.0%Unchanged
Spirepoint Private Client, LLC735$237.2K0.02%00.0%Unchanged
Laurel Oak Wealth Management, LLC737$237.9K0.04%00.0%Unchanged
Aspen Grove Capital, LLC737$237.9K0.05%+34+4.8%Added
Keel Point, LLC737$238.0K0.02%−192−20.7%Reduced
HF Advisory Group, LLC739$238.5K0.08%+739New
Premier Path Wealth Partners, LLC745$240.5K0.03%+745New