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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
Canton Hathaway, LLC3,500$1.40M0.28%+3,500New
Private Trust Co NA3,503$1.40M0.14%+59+1.7%Added
Alaska Permanent Fund Corp3,959$1.40M0.02%00.0%Unchanged
First American Bank3,540$1.41M0.10%00.0%Unchanged
Syon Capital LLC3,560$1.42M0.12%+439+14.1%Added
Inceptionr LLC3,598$1.44M0.43%+3,598New
Venturi Wealth Management, LLC3,619$1.44M0.08%−119−3.2%Reduced
NBT Bank N A3,644$1.45M0.11%−89−2.4%Reduced
NorthRock Partners, LLC3,648$1.46M0.05%+2+0.1%Added
Dorsey & Whitney Trust CO LLC3,658$1.46M0.08%−50−1.3%Reduced
BBR Partners, LLC3,669$1.46M0.10%00.0%Unchanged
Pekin Hardy Strauss, Inc.3,711$1.48M0.18%−150−3.9%Reduced
Americana Partners, LLC3,775$1.51M0.06%+1,746+86.1%Added
Belpointe Asset Management LLC3,779$1.51M0.08%+2,813+291.2%Added
Dakota Wealth Management3,805$1.52M0.04%+1,143+42.9%Added
Virtus Investment Advisers, Inc.3,826$1.53M0.42%+3,826New
MUFG Securities Americas Inc.3,829$1.53M0.18%+636+19.9%Added
Park Avenue Securities LLC3,832$1.53M0.02%−1,859−32.7%Reduced
Beacon Pointe Advisors, LLC3,849$1.54M0.02%+1,247+47.9%Added
HighPoint Advisor Group LLC4,391$1.54M0.09%+685+18.5%Added
Stratos Wealth Partners, LTD.3,886$1.55M0.02%−1,013−20.7%Reduced
Penserra Capital Management LLC3,917$1.56M0.03%+2,451+167.2%Added
Vestcor Inc3,954$1.58M0.05%+7+0.2%Added
Brown Brothers Harriman & Co3,967$1.58M0.01%−49−1.2%Reduced
Auxier Asset Management3,967$1.58M0.24%+200+5.3%Added
Jones Financial Companies LLLP4,019$1.59M0.00%+211+5.5%Added
Vident Advisory, LLC3,974$1.59M0.02%−7,512−65.4%Reduced
Logan Capital Management Inc3,984$1.59M0.07%−322−7.5%Reduced
Mission Wealth Management, LP3,992$1.59M0.04%−300−7.0%Reduced
Garrison Bradford & Associates Inc4,000$1.60M1.76%00.0%Unchanged
TD Waterhouse Canada Inc.4,022$1.60M0.01%+29+0.7%Added
Oxford Asset Management LLP4,055$1.62M0.74%+4,055New
Meiji Yasuda Asset Management Co Ltd.4,061$1.62M0.07%+374+10.1%Added
Sompo Asset Management Co., Ltd.4,070$1.62M0.30%−1,890−31.7%Reduced
Ellis Investment Partners, LLC4,070$1.62M0.34%00.0%Unchanged
Chesley Taft & Associates LLC4,072$1.63M0.08%+650+19.0%Added
QRG Capital Management, Inc.4,073$1.63M0.02%−3,455−45.9%Reduced
NFJ Investment Group, LLC4,102$1.64M0.06%−192−4.5%Reduced
Rothschild Investment LLC4,174$1.67M0.11%−2,530−37.7%Reduced
Merit Financial Group, LLC4,210$1.68M0.03%+771+22.4%Added
Oxford Financial Group Ltd4,213$1.68M0.12%+17+0.4%Added
Accredited Investors Inc.4,222$1.68M0.10%+38+0.9%Added
Dynasty Wealth Management, LLC4,228$1.69M0.03%+185+4.6%Added
Meeder Advisory Services, Inc.4,240$1.69M0.10%+217+5.4%Added
Private Wealth Asset Management, LLC4,265$1.70M0.24%+4,265New
ProVise Management Group, LLC4,269$1.70M0.14%−600−12.3%Reduced
Huntington National Bank4,370$1.74M0.01%+80+1.9%Added
Dynamic Technology Lab Private Ltd4,425$1.77M0.26%+4,425New
Clune & Associates, Ltd.4,426$1.77M0.54%−57−1.3%Reduced
Bellwether Advisors, LLC4,494$1.79M0.37%+4,494New
Parkside Financial Bank & Trust4,562$1.82M0.23%−44−1.0%Reduced
Quadrant Capital Group LLC4,634$1.85M0.07%+2,347+102.6%Added
Plato Investment Management Ltd4,711$1.90M0.16%−1,415−23.1%Reduced
Empowered Funds, LLC4,843$1.93M0.03%−126−2.5%Reduced
Triumph Capital Management4,849$1.94M0.64%−200−4.0%Reduced
NorthCrest Asset Manangement, LLC4,899$1.95M0.06%+275+5.9%Added
Kraft, Davis & Associates, LLC5,327$1.96M0.63%−2,005−27.3%Reduced
Enterprise Financial Services Corp4,930$1.97M1.16%+360+7.9%Added
Snowden Capital Advisors LLC4,964$1.98M0.06%+1,251+33.7%Added
Cohen Klingenstein LLC5,000$2.00M0.07%00.0%Unchanged
Greenleaf Trust5,024$2.01M0.02%+287+6.1%Added
Barings LLC5,035$2.01M0.05%00.0%Unchanged
Welch Group, LLC5,129$2.02M0.09%−143−2.7%Reduced
United Services Automobile Association5,134$2.03M0.06%+5,134New
CAPROCK Group, Inc.5,092$2.03M0.06%+371+7.9%Added
Applied Finance Capital Management, LLC5,094$2.03M0.15%+139+2.8%Added
Lecap Asset Management Ltd5,194$2.07M0.48%+5,194New
Caldwell Trust Co5,200$2.08M0.22%00.0%Unchanged
Two Sigma Investments, LP5,234$2.09M0.00%−48,226−90.2%Reduced
Tyler-Stone Wealth Management5,241$2.09M0.38%00.0%Unchanged
Canandaigua National Bank & Trust Co5,241$2.09M0.21%+1,304+33.1%Added
Avantax Advisory Services, Inc.5,253$2.10M0.01%+318+6.4%Added
Whittier Trust Co5,266$2.10M0.03%−41−0.8%Reduced
Fischer Financial Services, Inc.5,410$2.16M0.70%−150−2.7%Reduced
Grove Bank & Trust5,412$2.16M0.29%+5,245+3,140.7%Added
Investment Management Corp of Ontario5,496$2.19M0.04%−1,776−24.4%Reduced
Campbell & CO Investment Adviser LLC5,514$2.20M0.17%−11,829−68.2%Reduced
Everence Capital Management Inc5,520$2.20M0.15%+150+2.8%Added
Fiduciary Alliance LLC5,522$2.20M0.22%−2,051−27.1%Reduced
Twinbeech Capital LP5,527$2.21M0.04%+5,527New
Magnetar Financial LLC5,536$2.21M0.03%+5,536New
Bryn Mawr Trust Co5,567$2.22M0.04%−182−3.2%Reduced
Congress Wealth Management LLC5,708$2.28M0.03%+1,440+33.7%Added
Kentucky Retirement Systems Insurance Trust Fund5,710$2.28M0.16%−4,951−46.4%Reduced
Personal Cfo Solutions, LLC5,784$2.31M0.47%+2,510+76.7%Added
SG Americas Securities, LLC5,796$2.31M0.01%+557+10.6%Added
Mesirow Financial Investment Management, Inc.5,809$2.32M0.04%+114+2.0%Added
Tokio Marine Asset Management Co Ltd5,865$2.34M0.08%+398+7.3%Added
Coldstream Capital Management Inc5,906$2.36M0.05%+12+0.2%Added
Tower Research Capital LLC (TRC)5,921$2.36M0.07%−6,465−52.2%Reduced
Lido Advisors, LLC5,946$2.37M0.01%−810−12.0%Reduced
United Capital Financial Advisers, LLC6,016$2.40M0.02%+391+7.0%Added
Ancora Advisors, LLC6,020$2.40M0.05%00.0%Unchanged
WoodTrust Financial Corp6,085$2.43M0.34%00.0%Unchanged
Romano Brothers and Company6,131$2.45M0.32%00.0%Unchanged
Aire Advisors, LLC6,234$2.49M0.52%+11+0.2%Added
Delta Global Management LP6,305$2.52M0.18%+6,305New
Private Advisor Group, LLC6,359$2.54M0.02%+868+15.8%Added
Brown Advisory Inc6,412$2.56M0.00%+149+2.4%Added
EP Wealth Advisors, LLC6,460$2.58M0.02%+2,435+60.5%Added