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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
Avion Wealth35$11.0K0.00%+11+45.8%Added
Clear Street Markets LLC35$11.3K0.01%−363−91.2%Reduced
Prosperity Bancshares Inc35$11.3K0.01%+13+59.1%Added
Arlington Trust Co LLC36$11.6K0.00%+13+56.5%Added
First Pacific Financial36$11.6K0.00%+10+38.5%Added
Meeder Asset Management Inc38$12.3K0.00%−11−22.4%Reduced
Sunbelt Securities, Inc.38$12.3K0.00%−1−2.6%Reduced
Raffa Wealth Management, LLC38$12.3K0.00%+2+5.6%Added
JNBA Financial Advisors38$12.3K0.00%+38New
Monetary Solutions, Ltd40$12.9K0.01%00.0%Unchanged
Truvestments Capital LLC41$13.2K0.00%00.0%Unchanged
Lodestone Wealth Management LLC41$13.2K0.01%00.0%Unchanged
McIlrath & Eck, LLC42$13.6K0.00%00.0%Unchanged
Activest Wealth Management42$13.6K0.00%+20+90.9%Added
Westfuller Advisors, LLC42$13.7K0.01%−363−89.6%Reduced
Lummis Asset Management, LP43$13.9K0.01%00.0%Unchanged
Bank of New Hampshire45$14.5K0.00%00.0%Unchanged
UMA Financial Services, Inc.48$15.5K0.00%−5−9.4%Reduced
Aspect Partners, LLC50$16.1K0.01%00.0%Unchanged
RWM Asset Management, LLC50$16.1K0.00%+50New
Golden State Equity Partners50$16.1K0.00%+50New
EFG International AG51$16.5K0.00%+51New
Prestige Wealth Management Group LLC52$16.8K0.00%−75−59.1%Reduced
Ritter Daniher Financial Advisory LLC52$16.8K0.00%00.0%Unchanged
Wilkerson Advisory Group LLC52$16.8K0.01%+33+173.7%Added
Sit Investment Associates Inc54$17.0K0.00%00.0%Unchanged
Valley National Advisers Inc55$17.0K0.00%+13+31.0%Added
South State Corp.53$17.1K0.00%−30−36.1%Reduced
Kingdom Financial Group LLC.53$17.1K0.00%00.0%Unchanged
Lloyd Advisory Services, LLC.53$17.1K0.00%+53New
SOA Wealth Advisors, LLC.54$17.4K0.00%−3−5.3%Reduced
Asset Planning,Inc58$18.8K0.01%00.0%Unchanged
Hughes Financial Services, LLC59$19.0K0.00%−3−4.8%Reduced
Ares Financial Consulting, LLC61$19.6K0.02%+29+90.6%Added
Joseph Group Capital Management61$19.7K0.00%+45+281.3%Added
Access Investment Management LLC62$20.0K0.01%00.0%Unchanged
Community Financial Services Group, LLC63$20.2K0.00%+63New
Key Financial Inc64$20.7K0.00%00.0%Unchanged
Gunpowder Capital Management, LLC dba Oliver Wealth Management68$21.9K0.02%00.0%Unchanged
Rational Advisors LLC72$23.2K0.00%00.0%Unchanged
Westside Investment Management, Inc.72$23.3K0.00%00.0%Unchanged
Fortitude Family Office, LLC74$23.9K0.01%+26+54.2%Added
HHM Wealth Advisors, LLC74$23.9K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC73$24.0K0.00%+1+1.4%Added
Timothy G. Youngquist 2020 Irrevocable Trust75$24.2K0.01%+75New
University of Texas/Texas Am Investment Managment Co76$24.5K0.00%00.0%Unchanged
Cornerstone Planning Group LLC78$24.5K0.00%+18+30.0%Added
Bell Investment Advisors, Inc79$25.5K0.00%−9−10.2%Reduced
Anchor Investment Management, LLC80$25.8K0.00%00.0%Unchanged
New Age Alpha Advisors, LLC83$26.8K0.00%+27+48.2%Added
Kemnay Advisory Services Inc.84$27.1K0.00%+1+1.2%Added
Millstone Evans Group, LLC90$29.1K0.02%00.0%Unchanged
TSFG, LLC92$30.0K0.00%00.0%Unchanged
Washington Trust Advisors, Inc.93$30.0K0.00%+5+5.7%Added
Wealth Preservation Advisors, LLC93$30.0K0.02%+83+830.0%Added
Mascoma Wealth Management LLC94$30.3K0.01%−1−1.1%Reduced
Pinnacle Bancorp, Inc.94$30.3K0.01%+5+5.6%Added
Medallion Wealth Advisors, LLC100$32.3K0.01%00.0%Unchanged
Trust Co of Toledo NA102$32.9K0.00%+39+61.9%Added
Salomon & Ludwin, LLC102$33.0K0.00%−15−12.8%Reduced
Measured Wealth Private Client Group, LLC103$33.2K0.01%00.0%Unchanged
Transamerica Financial Advisors, Inc.104$33.6K0.00%+52+100.0%Added
Covestor Ltd106$34.0K0.02%−106−50.0%Reduced
Twin Peaks Wealth Advisors, LLC106$34.1K0.01%+106New
Cornerstone Financial Management LLC106$34.2K0.03%00.0%Unchanged
Southern Michigan Bank & Trust108$34.9K0.01%+108New
Keating Financial Advisory Services, Inc.113$36.5K0.01%+34+43.0%Added
Frazier Financial Advisors, LLC118$38.1K0.02%00.0%Unchanged
MCF Advisors LLC119$38.4K0.00%+89+296.7%Added
GW&K Investment Management, LLC123$40.0K0.00%+20+19.4%Added
Bruce G. Allen Investments, LLC124$40.0K0.03%+38+44.2%Added
SJS Investment Consulting Inc.129$41.6K0.01%+93+258.3%Added
Palladiem, LLC132$43.0K0.04%00.0%Unchanged
Boyd Watterson Asset Management LLC138$44.5K0.01%00.0%Unchanged
Advisors Asset Management, Inc.139$44.9K0.00%−240−63.3%Reduced
Coston, McIsaac & Partners140$45.0K0.01%00.0%Unchanged
First United Bank Trust150$48.4K0.02%00.0%Unchanged
DAGCO, Inc.150$48.4K0.01%00.0%Unchanged
Hurley Capital, LLC150$48.4K0.03%+150New
Wall Street Financial Group, Inc.153$49.4K0.03%+153New
Rossby Financial, LCC158$50.8K0.01%+39+32.8%Added
Nemes Rush Group LLC159$51.3K0.00%−1−0.6%Reduced
Pin Oak Investment Advisors Inc160$52.0K0.04%00.0%Unchanged
West Financial Advisors, LLC162$52.3K0.01%00.0%Unchanged
ZRC Wealth Management, LLC163$52.6K0.02%+6+3.8%Added
St Germain D J Co Inc167$53.9K0.00%+110+193.0%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP174$54.4K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC169$54.5K0.00%−39−18.8%Reduced
Orion Capital Management LLC176$56.8K0.02%00.0%Unchanged
Quent Capital, LLC177$57.1K0.00%+99+126.9%Added
Hollencrest Capital Management185$59.7K0.00%−400−68.4%Reduced
Walleye Capital LLC186$60.0K0.00%−80,967−99.8%Reduced
Rosenberg Matthew Hamilton186$60.0K0.01%−13−6.5%Reduced
Resources Management Corp190$61.0K0.01%00.0%Unchanged
AdvisorNet Financial, Inc189$61.0K0.00%+1+0.5%Added
Cassaday & Co Wealth Management LLC190$61.3K0.00%+190New
Farmers & Merchants Investments Inc192$62.0K0.00%+43+28.9%Added
True Wealth Design, LLC194$62.6K0.02%+128+193.9%Added
Alerus Financial NA206$66.5K0.00%−14−6.4%Reduced
Godfrey Financial Associates, Inc.210$67.8K0.06%−1−0.5%Reduced