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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
Kings Point Capital Management67,219$15.5M1.53%––
KBC Group NV66,718$15.4M0.06%––
Banque Pictet & Cie SA66,033$15.2M0.19%––
Squarepoint Ops LLC65,376$15.0M0.14%––
Nisa Investment Advisors, LLC65,320$15.0M0.10%––
Teachers Retirement System of the State of Kentucky65,106$15.0M0.15%––
Advisors Capital Management, LLC64,976$15.0M0.52%––
Arizona State Retirement System64,425$14.8M0.13%––
Bishop Rock Capital, L.P.63,453$14.6M4.96%––
State of Michigan Retirement System62,924$14.5M0.09%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund62,656$14.4M0.13%––
AMP Capital Investors Ltd62,215$14.3M0.07%––
Intermede Investment Partners Ltd61,100$14.1M0.36%––
Sit Investment Associates Inc59,770$13.8M0.36%––
Cubist Systematic Strategies, LLC59,726$13.7M0.18%––
Tower Bridge Advisors58,813$13.5M1.02%––
Korea Investment CORP58,200$13.4M0.04%––
Thrivent Financial for Lutherans56,873$13.1M0.03%––
Zurcher Kantonalbank (Zurich Cantonalbank)54,028$12.4M0.07%––
Old National Bancorp53,901$12.4M0.49%––
MetLife Investment Management53,851$12.4M0.11%––
ProShare Advisors LLC53,778$12.4M0.04%––
M&T Bank Corp53,623$12.3M0.05%––
Swiss Life Asset Management Ltd52,292$12.0M0.17%––
Brinker Capital Investments, LLC52,032$12.0M0.18%––
Corsair Capital Management, L.P.51,723$11.9M2.48%––
Marks Group Wealth Management, Inc51,106$11.8M1.75%––
Victory Capital Management Inc51,143$11.8M0.01%––
Dana Investment Advisors, Inc.51,077$11.8M0.54%––
People's United Financial, Inc.50,877$11.7M0.28%––
Cullen/Frost Bankers, Inc.50,781$11.7M0.26%––
Parkwood LLC50,705$11.7M2.06%––
Fifth Third Bancorp49,932$11.5M0.05%––
Susquehanna Fundamental Investments, LLC49,657$11.4M0.20%––
William Blair Investment Management, LLC49,228$11.3M0.04%––
BlueMar Capital Management, LLC48,804$11.2M2.43%––
Global Endowment Management, LP48,591$11.2M0.70%––
Comerica Bank48,138$11.1M0.07%––
Kornitzer Capital Management Inc48,000$11.0M0.18%––
Sustainable Growth Advisers, LP47,717$11.0M0.06%––
Gulf International Bank (UK) Ltd46,303$10.7M0.15%––
YHB Investment Advisors, Inc.44,317$10.6M0.92%––
Kirr Marbach & Co LLC45,320$10.4M3.02%––
Oregon Public Employees Retirement Fund45,084$10.4M0.12%––
Nomura Asset Management Co Ltd43,998$10.1M0.06%––
Tudor Investment Corp Et Al43,825$10.1M0.22%––
Greenwood Gearhart Inc43,562$10.0M1.78%––
Utah Retirement Systems43,484$10.0M0.14%––
Pinebridge Investments, L.P.41,858$9.63M0.12%––
First Republic Investment Management, Inc.41,580$9.57M0.03%––
Markel Group Inc.SuperinvestorMarkel Group41,500$9.55M0.13%––
Hexavest Inc.41,330$9.51M0.42%––
Public Employees Retirement Association of Colorado40,964$9.43M0.04%––
Metropolitan Life Insurance Co39,541$9.10M0.14%––
Silvercrest Asset Management Group LLC39,267$9.04M0.06%––
Kiwi Wealth Investments Limited Partnership38,588$8.88M0.51%––
Janney Montgomery Scott LLC37,957$8.73M0.04%––
British Columbia Investment Management Corp37,560$8.64M0.06%––
Hantz Financial Services, Inc.36,849$8.48M0.35%––
Capital International Sarl36,647$8.43M0.80%––
Peapack Gladstone Financial Corp36,622$8.43M0.22%––
Vestcor Inc36,589$8.42M0.32%––
First Manhattan Co36,511$8.40M0.04%––
HM Payson & Co35,927$8.27M0.22%––
State of Alaska, Department of Revenue35,406$8.15M0.09%––
Robeco Schweiz AG34,741$7.99M0.12%––
Twin Tree Management, LP34,166$7.86M0.30%––
Texas Permanent School Fund34,062$7.84M0.10%––
Citizens Financial Group Inc33,801$7.78M0.41%––
HSBC Holdings PLC33,496$7.73M0.01%––
LPL Financial LLC33,427$7.69M0.01%––
Xponance, Inc.33,281$7.66M0.16%––
Fiduciary Group LLC30,265$7.61M0.93%––
Dai-Ichi Life Insurance Company, Ltd32,525$7.48M0.10%––
Voloridge Investment Management, LLC31,520$7.25M0.05%––
Unio Capital LLC31,376$7.22M3.42%––
Strategy Asset Managers LLC31,157$7.17M1.64%––
CIBC World Markets Inc.30,859$7.10M0.02%––
Foyston, Gordon, & Payne Inc30,657$7.05M1.66%––
Churchill Management Corp30,282$6.97M0.11%––
HighTower Advisors, LLC29,742$6.84M0.02%––
Mutual of America Capital Management LLC29,309$6.74M0.07%––
Aperture Investors, LLC28,502$6.56M1.05%––
Andra AP-fonden28,100$6.47M0.14%––
Barings LLC28,015$6.45M0.16%––
Commonwealth Equity Services, LLC27,600$6.35M0.02%––
SG3 Management, LLC27,500$6.33M2.07%––
Stephens Inc27,423$6.31M0.10%––
US Bancorp27,390$6.30M0.01%––
Advisor Group Holdings, Inc.26,960$6.21M0.01%––
ExodusPoint Capital Management, LP26,647$6.13M0.12%––
Commerce Bank26,402$6.08M0.05%––
Westpac Banking Corp25,770$5.93M0.07%––
Teacher Retirement System of Texas25,742$5.92M0.03%––
Man Group plc25,531$5.88M0.03%––
Sompo Asset Management Co., Ltd.25,460$5.86M1.33%––
Carderock Capital Management Inc25,434$5.85M1.75%––
Bokf, NA25,320$5.83M0.11%––
Nissay Asset Management Corp25,097$5.78M0.06%––
Running Oak Capital LLC25,098$5.78M1.76%––