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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 2026

Institutional positions in Aon plc as of Jun 30, 2026. 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

Q3 2026 data is still coming in: 3 institutions have reported holding AON so far. See Q3 2026

Institutional holders
1,273
+24 vs. Q1 2026
Shares held
192.7M
+5.20M (+2.8%) vs. Q1 2026
Total value
$63.9B
+$3.31B (+5.5%) vs. Q1 2026
New holders
139
472 more added
Sold out
115
458 more reduced

17 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 1,273 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 heldQ2 2026: $63.9B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2026.

Institutions holding AON in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Utah Retirement Systems31,597$10.5M0.10%−2,534−7.4%Reduced
Truist Financial Corp31,635$10.5M0.01%+436+1.4%Added
HighTower Advisors, LLC31,635$10.5M0.01%−10,535−25.0%Reduced
Tower Bridge Advisors31,789$10.5M0.95%−1,687−5.0%Reduced
Artemis Investment Management LLP31,855$10.6M0.09%−4,869−13.3%Reduced
Baird Financial Group, Inc.31,867$10.6M0.01%+1,156+3.8%Added
Beese Fulmer Investment Management, Inc.32,104$10.6M0.61%+868+2.8%Added
Federation des caisses Desjardins du Quebec32,570$10.8M0.03%+9,581+41.7%Added
Van Eck Associates Corp33,007$10.9M0.01%+33,007New
Picton Mahoney Asset Management33,016$11.0M0.10%−29,989−47.6%Reduced
Frontier Capital Management Co LLC33,246$11.0M0.10%−1,746−5.0%Reduced
Borer Denton & Associates, Inc.33,419$11.1M3.64%+533+1.6%Added
Zevin Asset Management LLC33,519$11.1M1.56%−742−2.2%Reduced
Factory Mutual Insurance Co33,650$11.2M0.10%−350−1.0%Reduced
Fayez Sarofim & Co33,652$11.2M0.03%+32+0.1%Added
Schonfeld Strategic Advisors LLC33,796$11.2M0.06%−80,207−70.4%Reduced
KBC Group NV34,076$11.3M0.02%−1,987−5.5%Reduced
NEOS Investment Management LLC34,465$11.4M0.04%+3,922+12.8%Added
Guggenheim Capital LLC34,639$11.5M0.07%+14,570+72.6%Added
HM Payson & Co34,745$11.5M0.15%−87,493−71.6%Reduced
D. E. Shaw & Co., Inc.34,765$11.5M0.01%−93,558−72.9%Reduced
CIBC World Markets Inc.34,825$11.6M0.02%−14,904−30.0%Reduced
Capital International Ltd35,015$11.6M0.38%+183+0.5%Added
Robeco Institutional Asset Management B.V.35,694$11.8M0.01%−16,914−32.2%Reduced
Vinva Investment Management Ltd36,232$11.9M0.08%+9,507+35.6%Added
Ilmarinen Mutual Pension Insurance Co36,500$12.1M0.08%00.0%Unchanged
Glenmede Trust Co NA36,761$12.2M0.05%−19,597−34.8%Reduced
Daiwa Securities Group Inc.37,693$12.5M0.03%−1,737−4.4%Reduced
Mediolanum International Funds Ltd38,444$12.6M0.11%+9,799+34.2%Added
Weiss Asset Management LP38,024$12.6M0.14%+38,024New
Cetera Investment Advisers38,120$12.6M0.01%+1,697+4.7%Added
STRS Ohio38,209$12.7M0.05%−30,599−44.5%Reduced
Amalgamated Bank38,251$12.7M0.09%−6,111−13.8%Reduced
Prudential Financial Inc38,313$12.7M0.01%+9,295+32.0%Added
Corsair Capital Management, L.P.38,379$12.7M1.60%−1,722−4.3%Reduced
Allianz Asset Management GmbH38,410$12.7M0.01%−4,704−10.9%Reduced
Xponance, Inc.38,679$12.8M0.08%−19,651−33.7%Reduced
Stephens Inc39,781$13.2M0.15%−2,775−6.5%Reduced
Kornitzer Capital Management Inc40,050$13.3M0.28%00.0%Unchanged
Suncoast Equity Management40,704$13.5M1.69%−3,686−8.3%Reduced
Pathstone Holdings, LLC40,897$13.6M0.04%+2,205+5.7%Added
Nisa Investment Advisors, LLC41,674$13.8M0.04%−10.0%Reduced
Alyeska Investment Group, L.P.42,695$14.2M0.04%−19,035−30.8%Reduced
Wealth Enhancement Advisory Services, LLC46,437$14.3M0.02%+17,815+62.2%Added
Bank of Nova Scotia43,569$14.5M0.02%−18,963−30.3%Reduced
Kestra Advisory Services, LLC44,550$14.8M0.05%+28,997+186.4%Added
ProShare Advisors LLC44,812$14.9M0.02%+1,626+3.8%Added
Retirement Systems of Alabama44,869$14.9M0.04%−681−1.5%Reduced
SEB Asset Management AB44,927$14.9M0.06%−21,972−32.8%Reduced
Eagle Capital Management LLC44,973$14.9M0.05%−418,377−90.3%Reduced
DnB Asset Management AS45,559$15.1M0.04%+976+2.2%Added
Healthcare of Ontario Pension Plan Trust Fund45,685$15.2M0.02%−113,688−71.3%Reduced
Canoe Financial LP45,829$15.2M0.19%−9,360−17.0%Reduced
Barings LLC46,248$15.3M0.27%00.0%Unchanged
IFM Investors Pty Ltd46,337$15.4M0.10%+5,510+13.5%Added
Marshall Wace, LLP46,582$15.5M0.01%+46,582New
Swiss Life Asset Management Ltd–$15.6M0.06%–New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys47,173$15.6M0.08%−2,793−5.6%Reduced
Tudor Investment Corp Et Al47,785$15.8M0.07%−13,215−21.7%Reduced
Managed Asset Portfolios, LLC48,322$16.0M1.83%−23,291−32.5%Reduced
MetLife Investment Management48,773$16.2M0.07%−10,028−17.1%Reduced
Mirae Asset Global Investments Co., Ltd.48,850$16.2M0.03%+5,137+11.8%Added
Global Frontier Investments LLC49,000$16.3M2.80%00.0%Unchanged
Intech Investment Management LLC49,781$16.5M0.15%−94,664−65.5%Reduced
LTS One Management LP50,650$16.8M7.03%−6,675−11.6%Reduced
Cullen/Frost Bankers, Inc.50,894$16.9M0.17%+113+0.2%Added
Abner Herrman & Brock LLC51,218$17.0M1.61%−2,414−4.5%Reduced
Gotham Asset Management, LLC51,801$17.2M0.04%−37,004−41.7%Reduced
Mercer Global Advisors Inc52,099$17.3M0.02%+24,351+87.8%Added
Varma Mutual Pension Insurance Co53,400$17.7M0.09%+7,300+15.8%Added
Resona Asset Management Co.,Ltd.53,962$17.9M0.08%−4,085−7.0%Reduced
State of Michigan Retirement System54,658$18.1M0.08%−1,400−2.5%Reduced
Swedbank AB54,698$18.1M0.02%−32,766−37.5%Reduced
Arizona State Retirement System56,479$18.7M0.09%+522+0.9%Added
Avalon Trust Co57,146$19.0M1.17%−90−0.2%Reduced
CIBC Bancorp USA Inc.57,614$19.1M0.02%−17,575−23.4%Reduced
JLB & Associates Inc58,493$19.4M2.59%−3,473−5.6%Reduced
Mn Services Vermogensbeheer B.V.59,386$19.7M0.15%−15,100−20.3%Reduced
Victory Capital Management Inc60,303$20.0M0.01%−993−1.6%Reduced
Czech National Bank60,792$20.2M0.11%+2,374+4.1%Added
Public Sector Pension Investment Board60,977$20.2M0.05%−39−0.1%Reduced
Rafferty Asset Management, LLC62,217$20.6M0.05%+10,066+19.3%Added
Lansforsakringar Fondforvaltning AB (publ)63,531$21.1M0.09%−5,667−8.2%Reduced
Creative Planning64,022$21.2M0.01%+14,258+28.7%Added
State of New Jersey Common Pension Fund D65,126$21.6M0.07%−5,133−7.3%Reduced
Distillate Capital Partners LLC66,307$22.0M1.14%+756+1.2%Added
Credit Agricole S A66,685$22.1M0.06%+7,802+13.3%Added
Handelsbanken Fonder AB68,206$22.6M0.06%+1,293+1.9%Added
Captrust Financial Advisors68,638$22.8M0.03%+30,156+78.4%Added
CIBC Asset Management Inc69,491$23.0M0.05%+520+0.8%Added
CI Private Wealth, LLC73,158$24.3M0.03%+32,505+80.0%Added
Gluskin Sheff & Assoc Inc73,720$24.5M3.77%−18,799−20.3%Reduced
Capital International Sarl74,158$24.6M0.35%+1,857+2.6%Added
TD Asset Management Inc74,266$24.6M0.02%−6,261−7.8%Reduced
Janney Montgomery Scott LLC75,224$25.0M0.05%+42,785+131.9%Added
National Bank of Canada77,226$25.6M0.02%−58,502−43.1%Reduced
Mackenzie Financial Corp77,327$25.6M0.03%−89,171−53.6%Reduced
Public Employees Retirement System of Ohio79,272$26.3M0.08%−5,670−6.7%Reduced
Advisors Capital Management, LLC79,883$26.5M0.28%−6,548−7.6%Reduced
Tredje AP-fonden81,171$26.9M0.12%+20,085+32.9%Added