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, Q4 2023
Institutional positions in Aon plc as of Dec 31, 2023. 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
- 1,066
- +35 vs. Q3 2023
- Shares held
- 171.3M
- −2.61M (−1.5%) vs. Q3 2023
- Total value
- $49.8B
- −$6.57B (−11.6%) vs. Q3 2023
- New holders
- 123
- 341 more added
- Sold out
- 88
- 403 more reduced
17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,273 | $63.9B |
| Q1 2026 | 1,265 | $60.6B |
| Q4 2025 | 1,288 | $66.7B |
| Q3 2025 | 1,254 | $66.3B |
| Q2 2025 | 1,232 | $69.3B |
| Q1 2025 | 1,275 | $77.1B |
| Q4 2024 | 1,195 | $69.1B |
| Q3 2024 | 1,148 | $66.1B |
| Q2 2024 | 1,110 | $55.4B |
| Q1 2024 | 1,086 | $57.4B |
| Q4 2023 | 1,066 | $49.8B |
| Q3 2023 | 1,048 | $56.4B |
| Q2 2023 | 1,024 | $61.2B |
| Q1 2023 | 1,014 | $55.7B |
| Q4 2022 | 1,034 | $52.6B |
| Q3 2022 | 950 | $48.4B |
| Q2 2022 | 966 | $49.5B |
| Q1 2022 | 985 | $61.2B |
| Q4 2021 | 995 | $56.5B |
| Q3 2021 | 917 | $57.2B |
| Q2 2021 | 912 | $53.4B |
| Q1 2021 | 919 | $51.4B |
Institutions, Q4 2023
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 17,597,172 | $5.12B | 0.11% | +38,761+0.2% | Added |
| BlackRock Inc. | 13,428,591 | $3.91B | 0.10% | +290,418+2.2% | Added |
| Massachusetts Financial Services Co | 12,472,342 | $3.63B | 1.17% | −1,138,822−8.4% | Reduced |
| Capital World Investors | 9,741,551 | $2.83B | 0.50% | −34,442−0.4% | Reduced |
| State Street Corp | 8,213,942 | $2.39B | 0.12% | +167,107+2.1% | Added |
| Morgan Stanley | 6,190,104 | $1.80B | 0.16% | +430,174+7.5% | Added |
| Capital International Investors | 5,524,730 | $1.61B | 0.36% | +22,346+0.4% | Added |
| Mawer Investment Management Ltd. | 4,423,002 | $1.29B | 6.59% | −77,367−1.7% | Reduced |
| WCM Investment Management, LLC | 4,438,294 | $1.28B | 3.55% | −475,895−9.7% | Reduced |
| Geode Capital Management, LLC | 4,195,483 | $1.22B | 0.13% | +441,268+11.8% | Added |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.19B | 0.34% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 3,819,326 | $1.11B | 1.41% | −660,326−14.7% | Reduced |
| Sustainable Growth Advisers, LP | 2,678,026 | $779.4M | 3.55% | +212,144+8.6% | Added |
| Mackenzie Financial Corp | 2,331,132 | $678.4M | 1.02% | +179,238+8.3% | Added |
| Northern Trust Corp | 2,142,698 | $623.6M | 0.11% | −102,211−4.6% | Reduced |
| Eagle Capital Management LLC | 1,981,589 | $576.7M | 2.45% | +241,300+13.9% | Added |
| Independent Franchise Partners LLP | 1,933,361 | $562.6M | 4.78% | −93,004−4.6% | Reduced |
| GQG Partners LLC | 1,758,547 | $511.8M | 1.08% | −432,915−19.8% | Reduced |
| Neuberger Berman Group LLC | 1,745,113 | $507.9M | 0.44% | −383,224−18.0% | Reduced |
| Longview Partners (Guernsey) LTD | 1,708,604 | $497.2M | 3.32% | −122,399−6.7% | Reduced |
| Bank of America Corp | 1,607,387 | $467.8M | 0.05% | −534,176−24.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,472,309 | $428.3M | 0.75% | +182,688+14.2% | Added |
| Norges Bank | 1,453,610 | $423.0M | 0.07% | +415,557+40.0% | Added |
| Legal & General Group Plc | 1,445,898 | $420.8M | 0.13% | +51,511+3.7% | Added |
| Bank of New York Mellon Corp | 1,440,036 | $419.1M | 0.08% | −428,227−22.9% | Reduced |
| UBS Asset Management Americas Inc | 1,330,384 | $387.2M | 0.15% | +22,025+1.7% | Added |
| Cantillon Capital Management LLC | 1,220,174 | $355.1M | 2.37% | −29,793−2.4% | Reduced |
| Invesco Ltd. | 1,213,158 | $353.1M | 0.08% | −89,646−6.9% | Reduced |
| California Public Employees Retirement System | 1,077,479 | $313.6M | 0.24% | −9,780−0.9% | Reduced |
| Charles Schwab Investment Management Inc | 1,058,309 | $308.0M | 0.08% | +5,727+0.5% | Added |
| FIL Ltd | 1,030,177 | $299.8M | 0.31% | +273,141+36.1% | Added |
| Goldman Sachs Group Inc | 984,900 | $286.6M | 0.06% | +44,820+4.8% | Added |
| JPMorgan Chase & Co | 963,018 | $280.3M | 0.03% | +412,481+74.9% | Added |
| Manufacturers Life Insurance Company, The | 950,153 | $276.5M | 0.17% | +290,936+44.1% | Added |
| Price T Rowe Associates Inc | 880,740 | $256.3M | 0.03% | −238,598−21.3% | Reduced |
| Principal Financial Group Inc | 877,857 | $255.5M | 0.16% | −3,594−0.4% | Reduced |
| C WorldWide Group Holding A/S | 828,764 | $241.2M | 3.24% | +54,166+7.0% | Added |
| Polen Capital Management LLC | 819,616 | $238.6M | 0.59% | +4,326+0.5% | Added |
| Artisan Partners Limited Partnership | 811,416 | $236.1M | 0.37% | −500,099−38.1% | Reduced |
| Qube Research & Technologies Ltd | 782,162 | $227.6M | 0.52% | +567,211+263.9% | Added |
| Barclays PLC | 780,471 | $227.1M | 0.12% | −45,875−5.6% | Reduced |
| Dimensional Fund Advisors LP | 765,537 | $222.8M | 0.07% | +5,770+0.8% | Added |
| Blair William & Co | 741,041 | $215.7M | 0.73% | +15,712+2.2% | Added |
| First Pacific Advisors, LP | 713,050 | $207.5M | 3.11% | −7,527−1.0% | Reduced |
| Fiera Capital Corp | 678,238 | $197.4M | 0.61% | +23,792+3.6% | Added |
| Boston Partners | 640,810 | $186.8M | 0.25% | −571,333−47.1% | Reduced |
| Swiss National Bank | 634,400 | $184.6M | 0.14% | −22,600−3.4% | Reduced |
| Nuveen Asset Management, LLC | 630,171 | $183.4M | 0.06% | +630,171 | New |
| Omers Administration Corp | 594,265 | $172.9M | 2.18% | −8,372−1.4% | Reduced |
| Bessemer Group Inc | 574,782 | $167.3M | 0.33% | −10,474−1.8% | Reduced |
| USS Investment Management Ltd | 528,356 | $153.7M | 1.38% | +155,158+41.6% | Added |
| Royal Bank of Canada | 515,362 | $150.0M | 0.04% | +92,222+21.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 505,607 | $147.1M | 0.11% | −10,775−2.1% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 480,552 | $139.8M | 1.40% | −15,697−3.2% | Reduced |
| Natixis Advisors, L.P. | 462,046 | $134.5M | 0.35% | −46,607−9.2% | Reduced |
| Amundi | 450,063 | $132.3M | 0.06% | −50,723−10.1% | Reduced |
| Voya Investment Management LLC | 453,511 | $132.0M | 0.14% | −369,479−44.9% | Reduced |
| Janus Henderson Group PLC | 409,018 | $119.0M | 0.07% | −182,747−30.9% | Reduced |
| Deutsche Bank AG | 388,306 | $113.0M | 0.06% | −45,501−10.5% | Reduced |
| Rhumbline Advisers | 371,238 | $108.0M | 0.11% | −6,291−1.7% | Reduced |
| Capital Group Private Client Services, Inc. | 363,209 | $105.7M | 1.09% | −8,537−2.3% | Reduced |
| Douglass Winthrop Advisors, LLC | 354,376 | $103.1M | 2.30% | +1,110+0.3% | Added |
| Envestnet Asset Management Inc | 354,244 | $103.1M | 0.04% | −38,200−9.7% | Reduced |
| Millennium Management LLC | 349,790 | $101.8M | 0.10% | +223,139+176.2% | Added |
| Haverford Trust Co | 345,704 | $100.6M | 1.12% | −2,446−0.7% | Reduced |
| Russell Investments Group, Ltd. | 337,172 | $98.1M | 0.17% | +16,214+5.1% | Added |
| New York State Common Retirement Fund | 336,307 | $97.9M | 0.14% | −27,904−7.7% | Reduced |
| California State Teachers Retirement System | 331,760 | $96.5M | 0.13% | +4,843+1.5% | Added |
| Bank of Montreal | 324,634 | $94.5M | 0.05% | +86,546+36.4% | Added |
| BloombergSen Inc. | 311,121 | $90.5M | 7.30% | −45,739−12.8% | Reduced |
| Voloridge Investment Management, LLC | 308,043 | $89.6M | 0.35% | +308,043 | New |
| FMR LLC | 307,788 | $89.6M | 0.01% | −1,216,158−79.8% | Reduced |
| Ameriprise Financial Inc | 304,298 | $88.5M | 0.03% | −412,963−57.6% | Reduced |
| Credit Suisse AG | 296,076 | $86.2M | 0.08% | +15,042+5.4% | Added |
| HSBC Holdings PLC | 295,240 | $85.4M | 0.08% | +159,944+118.2% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 291,192 | $84.7M | 0.11% | +17,465+6.4% | Added |
| Wells Fargo & Company | 290,278 | $84.5M | 0.02% | −30,939−9.6% | Reduced |
| UBS Group AG | 289,385 | $84.2M | 0.03% | +84,637+41.3% | Added |
| Davenport & Co LLC | 275,043 | $79.9M | 0.55% | +7,382+2.8% | Added |
| SEI Investments Co | 267,288 | $77.8M | 0.12% | −25,928−8.8% | Reduced |
| SRB Corp | 247,451 | $72.0M | 4.25% | +245,997+16,918.6% | Added |
| Aviva PLC | 246,283 | $71.7M | 0.26% | +55,113+28.8% | Added |
| Citadel Advisors LLC | 235,392 | $68.5M | 0.07% | +126,947+117.1% | Added |
| Alliancebernstein L.P. | 231,786 | $67.5M | 0.03% | −4,605−1.9% | Reduced |
| Squarepoint Ops LLC | 229,478 | $66.8M | 0.27% | +168,645+277.2% | Added |
| Nicholas Company, Inc. | 228,245 | $66.4M | 1.18% | 00.0% | Unchanged |
| Man Group plc | 227,647 | $66.2M | 0.19% | – | – |
| Schroder Investment Management Group | 226,879 | $66.0M | 0.09% | +12,368+5.8% | Added |
| Pictet Asset Management Holding SA | 225,304 | $65.6M | 0.07% | +25,843+13.0% | Added |
| James Hambro & Partners | 223,865 | $65.1M | 3.47% | +20,239+9.9% | Added |
| Cooper Investors Pty Ltd | 214,263 | $62.4M | 3.73% | −57,287−21.1% | Reduced |
| DekaBank Deutsche Girozentrale | 215,327 | $61.8M | 0.13% | +98,338+84.1% | Added |
| State Board of Administration of Florida Retirement System | 210,013 | $61.1M | 0.13% | −200−0.1% | Reduced |
| Polar Capital Holdings Plc | 205,000 | $59.7M | 0.41% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 204,112 | $59.4M | 0.12% | −311,483−60.4% | Reduced |
| Acadian Asset Management LLC | 203,597 | $59.2M | 0.23% | +46,773+29.8% | Added |
| Stifel Financial Corp | 196,497 | $57.2M | 0.07% | +1,454+0.7% | Added |
| New York State Teachers Retirement System | 190,486 | $55.4M | 0.12% | −12,709−6.3% | Reduced |
| Broad Run Investment Management, LLC | 189,139 | $55.0M | 7.36% | −28,069−12.9% | Reduced |
| HM Payson & Co | 184,353 | $53.7M | 1.11% | −2,150−1.2% | Reduced |