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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, Q2 2021

Institutional positions in Aon plc as of Jun 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
912
+4 vs. Q1 2021
Shares held
223.7M
+1.23M (+0.6%) vs. Q1 2021
Total value
$53.4B
+$2.24B (+4.4%) vs. Q1 2021
New holders
82
353 more added
Sold out
78
289 more reduced

11 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2021: 912 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 heldQ2 2021: $53.4B
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 20261,265$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, Q2 2021

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2021.

Institutions holding AON in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Cumberland Partners Ltd22,025$5.26M0.41%+22,025New
Daiwa Securities Group Inc.22,070$5.27M0.04%−1,902−7.9%Reduced
Boston Common Asset Management, LLC22,185$5.30M0.23%−63−0.3%Reduced
Running Oak Capital LLC22,937$5.48M3.04%−2,161−8.6%Reduced
Carderock Capital Management Inc24,059$5.74M1.58%−1,375−5.4%Reduced
Regions Financial Corp24,153$5.77M0.05%+5,260+27.8%Added
Commerce Bank24,158$5.77M0.04%−2,244−8.5%Reduced
Marks Group Wealth Management, Inc24,238$5.79M0.80%−26,868−52.6%Reduced
MRJ Capital Inc24,627$5.88M3.42%−100−0.4%Reduced
Sompo Asset Management Co., Ltd.25,410$6.07M1.24%−50−0.2%Reduced
Nissay Asset Management Corp25,428$6.07M0.05%+331+1.3%Added
Zevin Asset Management LLC25,518$6.09M1.21%+1,449+6.0%Added
Xponance, Inc.25,855$6.17M0.11%−7,426−22.3%Reduced
US Bancorp27,075$6.46M0.01%−315−1.2%Reduced
Wolverine Trading, LLC26,708$6.49M0.18%+12,046+82.2%Added
Foyston, Gordon, & Payne Inc27,289$6.52M1.55%−3,368−11.0%Reduced
Duality Advisers, LP27,765$6.63M0.59%+19,249+226.0%Added
Teacher Retirement System of Texas29,194$6.97M0.04%+3,452+13.4%Added
Iridian Asset Management LLC29,425$7.03M0.13%−92,854−75.9%Reduced
Mutual of America Capital Management LLC29,437$7.03M0.07%+128+0.4%Added
Cutler Group LP29,577$7.06M0.52%+13,894+88.6%Added
Unio Capital LLC29,909$7.14M3.18%−1,467−4.7%Reduced
Commonwealth Equity Services, LLC30,098$7.19M0.02%+2,498+9.1%Added
Barings LLC30,238$7.22M0.17%+2,223+7.9%Added
Handelsbanken Fonder AB31,049$7.41M0.04%+31,049New
Strategy Asset Managers LLC31,107$7.43M1.57%−50−0.2%Reduced
Robeco Schweiz AG31,335$7.48M0.10%−3,406−9.8%Reduced
Simplex Trading, LLC31,923$7.62M0.28%+23,812+293.6%Added
HighTower Advisors, LLC32,306$7.70M0.02%+2,564+8.6%Added
Aperture Investors, LLC32,803$7.83M0.90%+4,301+15.1%Added
Advisor Group Holdings, Inc.32,899$7.86M0.02%+5,939+22.0%Added
Metropolitan Life Insurance Co33,630$8.03M0.11%−5,911−14.9%Reduced
Citizens Financial Group Inc33,745$8.06M0.35%−56−0.2%Reduced
Texas Permanent School Fund33,814$8.07M0.09%−248−0.7%Reduced
Fiduciary Group LLC31,182$8.09M0.94%+917+3.0%Added
CIBC World Markets Inc.34,205$8.17M0.02%+3,346+10.8%Added
Capital Fund Management S.A.34,860$8.32M0.22%+34,860New
State of Alaska, Department of Revenue35,044$8.37M0.08%−362−1.0%Reduced
Hexavest Inc.35,364$8.44M0.42%−5,966−14.4%Reduced
Public Sector Pension Investment Board35,374$8.45M0.05%+13,589+62.4%Added
LPL Financial LLC35,541$8.49M0.01%+2,114+6.3%Added
First Manhattan Co35,810$8.55M0.03%−701−1.9%Reduced
Susquehanna Fundamental Investments, LLC35,907$8.57M0.16%−13,750−27.7%Reduced
Bluefin Capital Management, LLC36,007$8.60M0.60%+36,007New
Peapack Gladstone Financial Corp36,642$8.75M0.21%+20+0.1%Added
Stephens Inc36,758$8.78M0.13%+9,335+34.0%Added
Parkwood LLC37,753$9.01M1.58%−12,952−25.5%Reduced
Public Employees Retirement Association of Colorado38,597$9.21M0.04%−2,367−5.8%Reduced
Dai-Ichi Life Insurance Company, Ltd38,647$9.23M0.12%+6,122+18.8%Added
Hantz Financial Services, Inc.39,485$9.43M0.35%+2,636+7.2%Added
PEAK6 Investments LLC39,735$9.49M0.25%+20,667+108.4%Added
Silvercrest Asset Management Group LLC40,849$9.75M0.06%+1,582+4.0%Added
Janney Montgomery Scott LLC41,114$9.82M0.04%+3,157+8.3%Added
British Columbia Investment Management Corp41,795$9.98M0.06%+4,235+11.3%Added
DSAM Partners (London) Ltd42,000$10.0M1.68%+42,000New
Sustainable Growth Advisers, LP42,445$10.1M0.05%−5,272−11.0%Reduced
Sit Investment Associates Inc42,470$10.1M0.25%−17,300−28.9%Reduced
Utah Retirement Systems42,684$10.2M0.13%−800−1.8%Reduced
M&T Bank Corp43,342$10.3M0.05%−10,281−19.2%Reduced
Global Endowment Management, LP43,656$10.4M0.59%−4,935−10.2%Reduced
Westpac Banking Corp44,035$10.5M0.11%+18,265+70.9%Added
Pinebridge Investments, L.P.44,178$10.5M0.12%+2,320+5.5%Added
YHB Investment Advisors, Inc.44,317$10.6M0.90%00.0%Unchanged
Greenwood Gearhart Inc44,854$10.7M1.73%+1,292+3.0%Added
Markel Group Inc.SuperinvestorMarkel Group44,900$10.7M0.14%+3,400+8.2%Added
Swiss Life Asset Management Ltd45,278$10.9M0.14%−7,014−13.4%Reduced
Kirr Marbach & Co LLC45,884$11.0M3.11%+564+1.2%Added
Capital International Sarl46,106$11.0M0.95%+9,459+25.8%Added
Gulf International Bank (UK) Ltd46,128$11.0M0.14%−175−0.4%Reduced
Dana Investment Advisors, Inc.46,614$11.1M0.49%−4,463−8.7%Reduced
Comerica Bank41,420$11.4M0.07%−6,718−14.0%Reduced
Kornitzer Capital Management Inc48,000$11.5M0.17%00.0%Unchanged
Voloridge Investment Management, LLC48,378$11.6M0.08%+16,858+53.5%Added
Oregon Public Employees Retirement Fund48,421$11.6M0.13%+3,337+7.4%Added
Nomura Asset Management Co Ltd48,473$11.6M0.07%+4,475+10.2%Added
Fifth Third Bancorp49,546$11.8M0.05%−386−0.8%Reduced
People's United Financial, Inc.50,345$12.0M0.27%−532−1.0%Reduced
Cullen/Frost Bankers, Inc.50,595$12.1M0.24%−186−0.4%Reduced
Cubist Systematic Strategies, LLC50,904$12.2M0.14%−8,822−14.8%Reduced
BP PLC51,114$12.2M0.52%−41,974−45.1%Reduced
Corsair Capital Management, L.P.51,467$12.3M2.14%−256−0.5%Reduced
William Blair Investment Management, LLC51,579$12.3M0.04%+2,351+4.8%Added
Old National Bancorp51,617$12.3M0.46%−2,284−4.2%Reduced
First Republic Investment Management, Inc.51,770$12.4M0.03%+10,190+24.5%Added
MetLife Investment Management52,316$12.5M0.11%−1,535−2.9%Reduced
Kiwi Wealth Investments Limited Partnership53,891$12.9M0.67%+15,303+39.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)54,028$12.9M0.07%00.0%Unchanged
ExodusPoint Capital Management, LP54,659$13.1M0.20%+28,012+105.1%Added
Brinker Capital Investments, LLC55,577$13.3M0.18%+3,545+6.8%Added
Thrivent Financial for Lutherans56,619$13.5M0.03%−254−0.4%Reduced
ProShare Advisors LLC57,752$13.8M0.04%+3,974+7.4%Added
Tower Bridge Advisors59,770$14.3M0.95%+957+1.6%Added
Intermede Investment Partners Ltd61,100$14.6M0.33%00.0%Unchanged
Forsta Ap-Fonden61,700$14.7M0.17%−7,800−11.2%Reduced
Nisa Investment Advisors, LLC62,694$15.0M0.09%−2,626−4.0%Reduced
Bishop Rock Capital, L.P.62,765$15.0M4.61%−688−1.1%Reduced
State of Michigan Retirement System62,924$15.0M0.09%00.0%Unchanged
Arizona State Retirement System63,315$15.1M0.12%−1,110−1.7%Reduced
AMP Capital Investors Ltd63,243$15.1M0.07%+1,028+1.7%Added
Banque Pictet & Cie SA64,799$15.5M0.17%−1,234−1.9%Reduced