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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
Bowie Capital Management, LLC154,362$44.1M5.79%+1,162+0.8%Added
AQR Capital Management LLC160,749$45.9M0.09%−747−0.5%Reduced
Ycg, LLC165,604$47.3M4.47%−6,173−3.6%Reduced
Night Owl Capital Management, LLC168,902$48.3M8.47%+43,998+35.2%Added
Barrow Hanley Mewhinney & Strauss LLC169,187$48.3M0.16%−483,846−74.1%Reduced
Gluskin Sheff & Assoc Inc169,969$48.6M2.03%−9,927−5.5%Reduced
State of Tennessee, Treasury Department172,511$49.3M0.19%−2,066−1.2%Reduced
Stifel Financial Corp172,568$49.3M0.07%−3,828−2.2%Reduced
Mitsubishi UFJ Trust & Banking Corp172,734$49.4M0.11%−5,083−2.9%Reduced
HM Payson & Co181,879$52.0M1.27%+45,553+33.4%Added
Eaton Vance Management188,980$53.2M0.07%+7,385+4.1%Added
The PNC Financial Services Group, Inc.194,578$55.6M0.05%−2,968−1.5%Reduced
Envestnet Asset Management Inc201,160$57.5M0.03%−4,793−2.3%Reduced
Obermeyer Wood Investment Counsel, LLLP208,607$59.6M3.30%+1,323+0.6%Added
Canada Pension Plan Investment Board212,057$60.6M0.07%00.0%Unchanged
CIBC Asset Management Inc215,178$61.5M0.25%−10,589−4.7%Reduced
Prudential Financial Inc220,982$63.7M0.09%+30,155+15.8%Added
Manufacturers Life Insurance Company, The222,774$63.7M0.05%+15,521+7.5%Added
Pictet Asset Management SA231,383$66.1M0.07%+231,383New
Raymond James & Associates238,938$68.3M0.06%+3,758+1.6%Added
New York State Teachers Retirement System242,858$69.4M0.15%−2,613−1.1%Reduced
Davenport & Co LLC250,116$71.5M0.50%−108,401−30.2%Reduced
State of Wisconsin Investment Board252,245$72.1M0.15%−196,878−43.8%Reduced
Marathon Asset Mgmt Ltd255,241$72.9M0.88%+255,241New
Cooper Investors Pty Ltd268,502$76.7M5.08%−14,665−5.2%Reduced
State Board of Administration of Florida Retirement System273,210$78.1M0.15%−9,504−3.4%Reduced
Caisse de Depot Et Placement du Quebec278,139$79.5M0.17%+112,076+67.5%Added
Nicholas Company, Inc.278,475$79.6M1.40%+150.0%Added
Two Sigma Investments, LP279,073$79.8M0.21%−180,841−39.3%Reduced
CIBC World Markets Corp289,138$82.6M0.56%+2,159+0.8%Added
Jackson Square Partners, LLC291,550$83.3M0.53%+86,627+42.3%Added
Omers Administration Corp292,537$83.6M1.22%+292,537New
AustralianSuper Pty Ltd295,226$84.4M0.54%+8,780+3.1%Added
Alliancebernstein L.P.303,891$86.8M0.03%+1,569+0.5%Added
Millennium Management LLC326,848$93.4M0.12%−240,715−42.4%Reduced
Rhumbline Advisers335,469$95.9M0.13%−10,297−3.0%Reduced
California State Teachers Retirement System337,996$96.6M0.12%−7,341−2.1%Reduced
Douglass Winthrop Advisors, LLC342,160$97.8M2.40%+13,398+4.1%Added
Capital International Inc344,008$98.3M0.95%−44,408−11.4%Reduced
Atlanta Capital Management Co L L C346,290$99.0M0.35%−1110.0%Reduced
Norges Bank351,826$100.5M0.02%+49,729+16.5%Added
Polar Capital Holdings Plc376,250$107.5M0.59%−21,250−5.3%Reduced
Bank of Montreal374,835$109.4M0.05%−30,910−7.6%Reduced
Swedbank AB389,024$111.2M0.21%−2,395−0.6%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management395,060$112.9M4.73%−27,790−6.6%Reduced
Kovitz Investment Group Partners, LLC414,701$118.5M2.37%−136,436−24.8%Reduced
Amundi420,019$120.0M0.08%+160,882+62.1%Added
Natixis Advisors, L.P.422,357$120.7M0.50%−29,658−6.6%Reduced
Russell Investments Group, Ltd.439,405$125.7M0.21%+18,887+4.5%Added
APG Asset Management N.V.528,604$130.3M0.23%+9,100+1.8%Added
Pensioenfonds Rail & Ov461,736$131.9M3.33%−123,976−21.2%Reduced
Wells Fargo & Company465,502$133.0M0.03%+78,188+20.2%Added
Broad Run Investment Management, LLC501,885$143.4M9.19%−29,770−5.6%Reduced
Credit Suisse AG528,981$151.2M0.12%−91,702−14.8%Reduced
Frontier Capital Management Co LLC536,716$153.4M1.21%+15,060+2.9%Added
BloombergSen Inc.539,417$154.1M9.89%+40,944+8.2%Added
Capital Group Private Client Services, Inc.550,892$157.4M1.83%+550,892New
Allianz Asset Management GmbH570,337$163.0M0.14%+62,060+12.2%Added
JPMorgan Chase & Co579,557$165.6M0.02%−84,549−12.7%Reduced
D. E. Shaw & Co., Inc.597,410$170.7M0.22%+45,369+8.2%Added
Blair William & Co608,795$174.0M0.59%+1,385+0.2%Added
Citigroup Inc609,912$174.3M0.17%+269,044+78.9%Added
Macquarie Group Ltd657,108$187.8M0.16%−121,088−15.6%Reduced
Vaughan Nelson Investment Management, L.P.657,594$187.9M1.91%−199,607−23.3%Reduced
Altrinsic Global Advisors LLC659,147$188.4M5.65%−462,326−41.2%Reduced
Tesco Pension Investment Ltd674,241$192.7M3.54%−95,592−12.4%Reduced
Ensign Peak Advisors, Inc683,178$195.2M0.41%−29,078−4.1%Reduced
DSM Capital Partners LLC705,173$201.7M2.09%−15,973−2.2%Reduced
Deutsche Bank AG757,885$216.6M0.10%−33,230−4.2%Reduced
Morgan Stanley760,024$217.2M0.03%−112,505−12.9%Reduced
Parametric Portfolio Associates LLC762,140$217.8M0.12%+26,139+3.6%Added
FMR LLC830,024$237.2M0.02%−3,913−0.5%Reduced
Bessemer Group Inc840,174$240.1M0.51%+9,609+1.2%Added
New York State Common Retirement Fund866,029$247.5M0.26%−1030.0%Reduced
Swiss National Bank892,174$255.0M0.16%−29,300−3.2%Reduced
Boston Partners983,226$281.0M0.36%+30,004+3.1%Added
Principal Financial Group Inc983,648$281.1M0.18%−58,693−5.6%Reduced
Polen Capital Management LLC1,022,244$292.1M0.54%+209,597+25.8%Added
Charles Schwab Investment Management Inc1,031,083$294.7M0.10%+9,216+0.9%Added
First Pacific Advisors, LP1,091,699$312.0M4.05%−85,829−7.3%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main1,098,934$314.1M0.51%+12,469+1.1%Added
Goldman Sachs Group Inc1,119,043$319.8M0.08%−583,689−34.3%Reduced
Dimensional Fund Advisors LP1,189,527$340.0M0.11%+7,273+0.6%Added
Price T Rowe Associates Inc1,250,773$357.4M0.03%−8,561−0.7%Reduced
Farallon Capital Management, L.L.C.1,262,315$360.7M1.94%−1,380,299−52.2%Reduced
Cantillon Capital Management LLC1,293,142$369.5M2.52%−23,289−1.8%Reduced
GQG Partners LLC1,302,297$372.2M1.02%+30,998+2.4%Added
Ameriprise Financial Inc1,358,164$388.5M0.12%−69,014−4.8%Reduced
UBS Asset Management Americas Inc1,384,607$395.7M0.16%−16,717−1.2%Reduced
Invesco Ltd.1,445,114$413.0M0.10%−372,363−20.5%Reduced
Royal Bank of Canada1,604,090$458.4M0.13%+77,587+5.1%Added
Legal & General Group Plc1,636,394$467.6M0.15%+87,498+5.6%Added
Arrowstreet Capital, Limited Partnership1,673,423$478.2M0.60%−176,237−9.5%Reduced
California Public Employees Retirement System1,738,806$496.9M0.37%+9,896+0.6%Added
Artisan Partners Limited Partnership2,182,876$623.8M0.76%+290,876+15.4%Added
Bank of New York Mellon Corp2,468,412$705.4M0.14%+258,791+11.7%Added
Wellington Management Group LLP2,543,989$727.0M0.12%+212,028+9.1%Added
Mackenzie Financial Corp2,623,935$749.8M1.06%−213,443−7.5%Reduced
Bank of America Corp2,786,528$796.3M0.09%−173,197−5.9%Reduced
Neuberger Berman Group LLC2,887,772$824.2M0.72%−946,654−24.7%Reduced