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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, Q3 2021

Institutional positions in Aon plc as of Sep 30, 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
917
+19 vs. Q2 2021
Shares held
200.2M
−23.0M (−10.3%) vs. Q2 2021
Total value
$57.2B
+$3.91B (+7.3%) vs. Q2 2021
New holders
104
293 more added
Sold out
85
350 more reduced

14 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 holdersQ3 2021: 917 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 heldQ3 2021: $57.2B
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, Q3 2021

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2021.

Institutions holding AON in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Markel Group Inc.SuperinvestorMarkel Group51,600$14.7M0.19%+6,700+14.9%Added
First Trust Advisors LP51,541$14.7M0.02%−659,042−92.7%Reduced
Corsair Capital Management, L.P.51,300$14.7M2.79%−167−0.3%Reduced
MetLife Investment Management50,987$14.6M0.13%−1,329−2.5%Reduced
Old National Bancorp50,877$14.5M0.55%−740−1.4%Reduced
Kornitzer Capital Management Inc50,625$14.5M0.22%+2,625+5.5%Added
Nomura Asset Management Co Ltd50,008$14.3M0.08%+1,535+3.2%Added
USS Investment Management Ltd49,909$14.3M0.12%−467,195−90.3%Reduced
BlueSpruce Investments, LP49,719$14.2M0.25%−1,997,143−97.6%Reduced
AMP Capital Investors Ltd49,623$14.2M0.08%−13,620−21.5%Reduced
Cullen/Frost Bankers, Inc.49,545$14.2M0.29%−1,050−2.1%Reduced
People's United Financial, Inc.48,886$14.0M0.31%−1,459−2.9%Reduced
Cubist Systematic Strategies, LLC47,535$13.6M0.17%−3,369−6.6%Reduced
Walleye Trading LLC46,920$13.4M0.32%−30,048−39.0%Reduced
Marks Group Wealth Management, Inc46,919$13.4M1.81%+22,681+93.6%Added
DekaBank Deutsche Girozentrale46,053$13.3M0.04%−29,057−38.7%Reduced
Brinker Capital Investments, LLC55,577$13.3M0.21%00.0%Unchanged
Greenwood Gearhart Inc46,436$13.3M2.06%+1,582+3.5%Added
Oregon Public Employees Retirement Fund46,208$13.2M0.15%−2,213−4.6%Reduced
Gulf International Bank (UK) Ltd45,702$13.1M0.17%−426−0.9%Reduced
William Blair Investment Management, LLC45,305$12.9M0.04%−6,274−12.2%Reduced
Kirr Marbach & Co LLC44,725$12.8M3.74%−1,159−2.5%Reduced
YHB Investment Advisors, Inc.44,317$12.7M1.09%00.0%Unchanged
Capital International Sarl43,793$12.5M1.11%−2,313−5.0%Reduced
Aperture Investors, LLC43,148$12.3M1.66%+10,345+31.5%Added
Swiss Life Asset Management Ltd43,123$12.3M0.17%−2,155−4.8%Reduced
Janney Montgomery Scott LLC42,737$12.2M0.05%+1,623+3.9%Added
Global Endowment Management, LP42,603$12.2M0.80%−1,053−2.4%Reduced
Man Group plc42,086$12.0M0.04%−56,466−57.3%Reduced
Hantz Financial Services, Inc.42,005$12.0M0.39%+2,520+6.4%Added
British Columbia Investment Management Corp41,759$11.9M0.07%−36−0.1%Reduced
Silvercrest Asset Management Group LLC41,089$11.7M0.08%+240+0.6%Added
Utah Retirement Systems40,484$11.6M0.16%−2,200−5.2%Reduced
Westpac Banking Corp40,392$11.5M0.12%−3,643−8.3%Reduced
Public Employees Retirement Association of Colorado38,512$11.0M0.05%−85−0.2%Reduced
Thrivent Financial for Lutherans38,230$10.9M0.02%−18,389−32.5%Reduced
Public Sector Pension Investment Board38,084$10.9M0.06%+2,710+7.7%Added
Sustainable Growth Advisers, LP37,886$10.8M0.05%−4,559−10.7%Reduced
Peapack Gladstone Financial Corp37,538$10.7M0.22%+896+2.4%Added
Bank of Nova Scotia37,160$10.6M0.02%+32,658+725.4%Added
M&T Bank Corp37,115$10.6M0.05%−6,227−14.4%Reduced
LPL Financial LLC36,960$10.6M0.01%+1,419+4.0%Added
Stephens Inc36,304$10.4M0.16%−454−1.2%Reduced
Teacher Retirement System of Texas36,218$10.3M0.06%+7,024+24.1%Added
HighTower Advisors, LLC35,921$10.3M0.03%+3,615+11.2%Added
Texas Permanent School Fund34,875$9.97M0.12%+1,061+3.1%Added
Fiduciary Group LLC31,001$9.93M1.13%−181−0.6%Reduced
State of Alaska, Department of Revenue34,646$9.90M0.10%−398−1.1%Reduced
CIBC World Markets Inc.34,278$9.80M0.04%+73+0.2%Added
Oribel Capital Management, LP34,100$9.74M1.20%+34,100New
Comerica Bank29,395$9.43M0.06%−12,025−29.0%Reduced
Citizens Financial Group Inc32,838$9.38M0.35%−907−2.7%Reduced
Advisor Group Holdings, Inc.32,760$9.38M0.02%−139−0.4%Reduced
Metropolitan Life Insurance Co32,480$9.28M0.13%−1,150−3.4%Reduced
Jabodon PT Co30,688$8.77M3.63%+30,688New
Commonwealth Equity Services, LLC30,242$8.64M0.02%+144+0.5%Added
Hexavest Inc.29,975$8.57M0.52%−5,389−15.2%Reduced
Los Angeles Capital Management LLC29,775$8.51M0.04%−209,238−87.5%Reduced
Kiwi Wealth Investments Limited Partnership29,747$8.50M0.43%−24,144−44.8%Reduced
Mutual of America Capital Management LLC29,621$8.46M0.08%+184+0.6%Added
Parkwood LLC28,649$8.19M1.40%−9,104−24.1%Reduced
TIG Advisors, LLC28,440$8.13M0.38%−108,705−79.3%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys28,290$8.08M0.09%+28,290New
Unio Capital LLC28,265$8.08M3.60%−1,644−5.5%Reduced
Zevin Asset Management LLC27,787$7.94M1.51%+2,269+8.9%Added
Strategy Asset Managers LLC27,606$7.89M1.75%−3,501−11.3%Reduced
US Bancorp27,298$7.80M0.01%+223+0.8%Added
Capital International Ltd27,187$7.77M0.42%+5,400+24.8%Added
Dai-Ichi Life Insurance Company, Ltd27,124$7.75M0.10%−11,523−29.8%Reduced
Cumberland Partners Ltd27,000$7.72M0.63%+4,975+22.6%Added
Simplex Trading, LLC31,923$7.62M0.27%00.0%Unchanged
Regions Financial Corp26,288$7.51M0.06%+2,135+8.8%Added
Nissay Asset Management Corp26,223$7.49M0.06%+795+3.1%Added
Commerce Bank26,218$7.49M0.05%+2,060+8.5%Added
Private Advisor Group, LLC26,061$7.45M0.05%+11,651+80.9%Added
Foyston, Gordon, & Payne Inc25,521$7.29M1.82%−1,768−6.5%Reduced
Fifth Third Bancorp25,505$7.29M0.03%−24,041−48.5%Reduced
Handelsbanken Fonder AB25,120$7.18M0.04%−5,929−19.1%Reduced
Xponance, Inc.24,847$7.10M0.13%−1,008−3.9%Reduced
Baird Financial Group, Inc.24,833$7.10M0.02%+6,277+33.8%Added
Wolverine Trading, LLC24,234$7.06M0.15%−2,474−9.3%Reduced
Carderock Capital Management Inc24,089$6.88M1.94%+30+0.1%Added
MRJ Capital Inc24,020$6.86M4.01%−607−2.5%Reduced
Pictet & Cie (Europe) SA23,471$6.71M0.25%+1,611+7.4%Added
Violich Capital Management, Inc.23,170$6.62M1.06%+1,900+8.9%Added
Vident Investment Advisory, LLC22,951$6.56M0.20%+3,707+19.3%Added
Panagora Asset Management Inc22,818$6.52M0.03%+17,020+293.5%Added
Boston Common Asset Management, LLC22,011$6.29M0.27%−174−0.8%Reduced
Credential Qtrade Securities Inc.21,601$6.17M0.48%+1,613+8.1%Added
Northwestern Mutual Wealth Management Co21,533$6.15M0.01%+497+2.4%Added
Van Eck Associates Corp21,342$6.10M0.02%+1,833+9.4%Added
Robeco Schweiz AG21,335$6.10M0.09%−10,000−31.9%Reduced
Richard Bernstein Advisors LLC20,855$5.96M0.12%+989+5.0%Added
Barings LLC20,599$5.89M0.13%−9,639−31.9%Reduced
First National Bank of Omaha20,334$5.81M0.30%−893−4.2%Reduced
Equitable Trust Co20,152$5.76M0.37%+1,814+9.9%Added
Johnson Investment Counsel Inc20,025$5.72M0.08%00.0%Unchanged
Securian Asset Management, Inc19,278$5.51M0.11%−226−1.2%Reduced
Susquehanna Fundamental Investments, LLC19,207$5.49M0.10%−16,700−46.5%Reduced
Shufro Rose & Co LLC19,000$5.43M0.43%−500−2.6%Reduced