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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 2021

Institutional positions in Aon plc as of Mar 31, 2021. 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
919
No complete 13F data for Q4 2020
Shares held
223.5M
No complete 13F data for Q4 2020
Total value
$51.4B
No complete 13F data for Q4 2020

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 2021: 919 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 2021: $51.4B
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 2021

Shares, value and share of portfolio for each institution holding Aon plc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding AON in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
MidWestOne Financial Group, Inc.9,583$2.21M0.53%––
Avitas Wealth Management LLC9,567$2.20M0.43%––
Ossiam9,546$2.20M0.07%––
Lee Capital Holdings LLC9,515$2.19M1.00%––
Park Avenue Securities LLC9,482$2.18M0.05%––
Pekin Hardy Strauss, Inc.9,469$2.18M0.34%––
Advisor Partners LLC9,281$2.14M0.15%––
Gofen & Glossberg LLC9,213$2.12M0.05%––
Acadian Asset Management LLC9,136$2.10M0.01%––
Anchor Capital Advisors LLC9,014$2.07M0.04%––
Olstein Capital Management, L.P.9,000$2.07M0.29%––
D. E. Shaw & Co., Inc.8,972$2.06M0.00%––
Huntington National Bank8,861$2.04M0.02%––
Allstate Corp8,631$1.99M0.06%––
Capital Planning Advisors, LLC8,624$1.98M0.44%––
Cerity Partners LLC8,573$1.97M0.05%––
Duality Advisers, LP8,516$1.96M0.17%––
Winton Group Ltd8,409$1.94M0.11%––
Achmea Investment Management B.V.8,389$1.93M0.07%––
Ativo Capital Management LLC8,263$1.90M0.81%––
Savant Capital, LLC8,255$1.90M0.10%––
Wealthfront Advisers LLC8,213$1.89M0.01%––
Cigna Investments Inc8,189$1.88M0.13%––
MV Capital Management, Inc.8,030$1.85M0.34%––
High Pointe Capital Management LLC8,026$1.85M1.62%––
IBM Retirement Fund7,721$1.78M0.13%––
United Capital Financial Advisers, LLC7,695$1.77M0.01%––
Caldwell Trust Co7,686$1.77M0.25%––
Paradigm Financial Partners, LLC7,619$1.75M0.47%––
Mitchell Capital Management Co7,558$1.74M0.42%––
Impax Asset Management Group plc7,489$1.72M0.01%––
Fortem Financial Group, LLC7,339$1.69M0.98%––
Illinois Municipal Retirement Fund7,311$1.68M0.07%––
Creative Planning7,239$1.67M0.00%––
Pure Financial Advisors, Inc.7,230$1.66M0.17%––
Madison Wealth Management7,185$1.65M0.41%––
Athanor Capital, LP7,049$1.62M0.07%––
Canandaigua National Corp6,988$1.61M0.27%––
Norinchukin Bank, The6,976$1.60M0.02%––
Keybank National Association6,916$1.59M0.01%––
Salvus Wealth Management, LLC6,671$1.57M1.46%––
World Asset Management Inc6,214$1.56M0.14%––
Cambridge Investment Research Advisors, Inc.6,754$1.55M0.01%––
Veritable, L.P.6,732$1.55M0.03%––
George Kaiser Family Foundation6,603$1.52M0.32%––
Vident Investment Advisory, LLC6,547$1.51M0.05%––
Kentucky Retirement Systems Insurance Trust Fund6,349$1.46M0.16%––
Dixon Hubard Feinour & Brown Inc6,332$1.46M0.35%––
Redpoint Investment Management Pty Ltd6,332$1.46M0.12%––
Brown Advisory Inc6,296$1.45M0.00%––
Jennison Associates LLC6,273$1.44M0.00%––
Henshaw Capital LLC6,254$1.44M0.10%––
Ancora Advisors, LLC6,176$1.42M0.04%––
TrimTabs Asset Management, LLC6,188$1.41M0.72%––
Union Heritage Capital, LLC6,000$1.38M0.69%––
Sumitomo Life Insurance Co5,993$1.38M0.06%––
Anderson Hoagland & Co5,927$1.36M0.19%––
Raymond James Trust N.A.5,885$1.35M0.05%––
Lafayette Investments, Inc.5,887$1.35M0.43%––
Welch Group, LLC5,890$1.35M0.10%––
First Mercantile Trust Co5,843$1.34M0.15%––
Wetherby Asset Management Inc5,750$1.32M0.10%––
Macquarie Group Ltd5,746$1.32M0.00%––
Heron Financial Group, LLC5,627$1.30M0.79%––
LS Investment Advisors, LLC5,602$1.29M0.07%––
AE Wealth Management LLC5,517$1.27M0.01%––
Brown Brothers Harriman & Co5,414$1.25M0.01%––
MUFG Americas Holdings Corp5,359$1.23M0.02%––
Banque Cantonale Vaudoise5,215$1.20M0.06%––
Meiji Yasuda Life Insurance Co5,146$1.18M0.02%––
Verdence Capital Advisors LLC5,118$1.18M0.20%––
Symmetry Partners, LLC5,099$1.17M0.08%––
Proequities, Inc.5,073$1.17M0.08%––
Enterprise Financial Services Corp5,068$1.17M0.21%––
Aurora Investment Counsel5,053$1.16M0.86%––
Bridgefront Capital, LLC5,034$1.16M0.36%––
Vestmark Advisory Solutions, Inc.5,015$1.15M0.10%––
Garrison Bradford & Associates Inc5,000$1.15M1.28%––
Cohen Klingenstein LLC5,000$1.15M0.05%––
Oribel Capital Management, LP5,000$1.15M0.22%––
Cetera Advisor Networks LLC4,981$1.15M0.02%––
Marshall Financial Group LLC4,957$1.14M0.68%––
Federation des caisses Desjardins du Quebec4,938$1.14M0.01%––
Parkside Financial Bank & Trust4,940$1.14M0.34%––
Nicolet Bankshares Inc4,885$1.13M0.31%––
Wealthspire Advisors, LLC4,918$1.13M0.03%––
Pitcairn Co4,900$1.13M0.08%––
Pendal Group Limited4,786$1.10M0.01%––
Oxford Financial Group Ltd4,764$1.10M0.15%––
Cresset Asset Management, LLC4,744$1.09M0.02%––
Compagnie Lombard Odier SCmA4,690$1.08M0.02%––
Ameritas Investment Partners, Inc.4,651$1.07M0.04%––
American Century Companies Inc4,584$1.05M0.00%––
Atria Investments LLC4,542$1.04M0.02%––
Venturi Wealth Management, LLC4,515$1.04M0.10%––
Old Dominion Capital Management Inc4,480$1.03M0.24%––
Lincoln National Corp4,477$1.03M0.03%––
Bessemer Securities LLC4,470$1.03M0.44%––
Bank of Nova Scotia4,422$1.02M0.00%––
Midwest Wealth Management Inc.4,410$1.01M0.82%––