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
- 1,067
- +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 | 1,266 | $60.6B |
| Q4 2025 | 1,289 | $66.7B |
| Q3 2025 | 1,255 | $66.3B |
| Q2 2025 | 1,233 | $69.3B |
| Q1 2025 | 1,276 | $77.1B |
| Q4 2024 | 1,196 | $69.1B |
| Q3 2024 | 1,149 | $66.1B |
| Q2 2024 | 1,111 | $55.4B |
| Q1 2024 | 1,087 | $57.4B |
| Q4 2023 | 1,067 | $49.8B |
| Q3 2023 | 1,049 | $56.4B |
| Q2 2023 | 1,025 | $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 |
|---|---|---|---|---|---|
| Russell Investments Group, Ltd. | 337,172 | $98.1M | 0.17% | +16,214+5.1% | Added |
| Haverford Trust Co | 345,704 | $100.6M | 1.12% | −2,446−0.7% | Reduced |
| Millennium Management LLC | 349,790 | $101.8M | 0.10% | +223,139+176.2% | Added |
| Envestnet Asset Management Inc | 354,244 | $103.1M | 0.04% | −38,200−9.7% | Reduced |
| Douglass Winthrop Advisors, LLC | 354,376 | $103.1M | 2.30% | +1,110+0.3% | Added |
| Capital Group Private Client Services, Inc. | 363,209 | $105.7M | 1.09% | −8,537−2.3% | Reduced |
| Rhumbline Advisers | 371,238 | $108.0M | 0.11% | −6,291−1.7% | Reduced |
| Deutsche Bank AG | 388,306 | $113.0M | 0.06% | −45,501−10.5% | Reduced |
| Janus Henderson Group PLC | 409,018 | $119.0M | 0.07% | −182,747−30.9% | Reduced |
| Voya Investment Management LLC | 453,511 | $132.0M | 0.14% | −369,479−44.9% | Reduced |
| Amundi | 450,063 | $132.3M | 0.06% | −50,723−10.1% | Reduced |
| Natixis Advisors, L.P. | 462,046 | $134.5M | 0.35% | −46,607−9.2% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 480,552 | $139.8M | 1.40% | −15,697−3.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 505,607 | $147.1M | 0.11% | −10,775−2.1% | Reduced |
| Royal Bank of Canada | 515,362 | $150.0M | 0.04% | +92,222+21.8% | Added |
| USS Investment Management Ltd | 528,356 | $153.7M | 1.38% | +155,158+41.6% | Added |
| Bessemer Group Inc | 574,782 | $167.3M | 0.33% | −10,474−1.8% | Reduced |
| Omers Administration Corp | 594,265 | $172.9M | 2.18% | −8,372−1.4% | Reduced |
| Nuveen Asset Management, LLC | 630,171 | $183.4M | 0.06% | +630,171 | New |
| Swiss National Bank | 634,400 | $184.6M | 0.14% | −22,600−3.4% | Reduced |
| Boston Partners | 640,810 | $186.8M | 0.25% | −571,333−47.1% | Reduced |
| Fiera Capital Corp | 678,238 | $197.4M | 0.61% | +23,792+3.6% | Added |
| First Pacific Advisors, LP | 713,050 | $207.5M | 3.11% | −7,527−1.0% | Reduced |
| Blair William & Co | 741,041 | $215.7M | 0.73% | +15,712+2.2% | Added |
| Dimensional Fund Advisors LP | 765,537 | $222.8M | 0.07% | +5,770+0.8% | Added |
| Barclays PLC | 780,471 | $227.1M | 0.12% | −45,875−5.6% | Reduced |
| Qube Research & Technologies Ltd | 782,162 | $227.6M | 0.52% | +567,211+263.9% | Added |
| Artisan Partners Limited Partnership | 811,416 | $236.1M | 0.37% | −500,099−38.1% | Reduced |
| Polen Capital Management LLC | 819,616 | $238.6M | 0.59% | +4,326+0.5% | Added |
| C WorldWide Group Holding A/S | 828,764 | $241.2M | 3.24% | +54,166+7.0% | Added |
| Principal Financial Group Inc | 877,857 | $255.5M | 0.16% | −3,594−0.4% | Reduced |
| Price T Rowe Associates Inc | 880,740 | $256.3M | 0.03% | −238,598−21.3% | Reduced |
| Manufacturers Life Insurance Company, The | 950,153 | $276.5M | 0.17% | +290,936+44.1% | Added |
| JPMorgan Chase & Co | 963,018 | $280.3M | 0.03% | +412,481+74.9% | Added |
| Goldman Sachs Group Inc | 984,900 | $286.6M | 0.06% | +44,820+4.8% | Added |
| FIL Ltd | 1,030,177 | $299.8M | 0.31% | +273,141+36.1% | Added |
| Charles Schwab Investment Management Inc | 1,058,309 | $308.0M | 0.08% | +5,727+0.5% | Added |
| California Public Employees Retirement System | 1,077,479 | $313.6M | 0.24% | −9,780−0.9% | Reduced |
| Invesco Ltd. | 1,213,158 | $353.1M | 0.08% | −89,646−6.9% | Reduced |
| Cantillon Capital Management LLC | 1,220,174 | $355.1M | 2.37% | −29,793−2.4% | Reduced |
| UBS Asset Management Americas Inc | 1,330,384 | $387.2M | 0.15% | +22,025+1.7% | Added |
| Bank of New York Mellon Corp | 1,440,036 | $419.1M | 0.08% | −428,227−22.9% | Reduced |
| Legal & General Group Plc | 1,445,898 | $420.8M | 0.13% | +51,511+3.7% | Added |
| Norges Bank | 1,453,610 | $423.0M | 0.07% | +415,557+40.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,472,309 | $428.3M | 0.75% | +182,688+14.2% | Added |
| Bank of America Corp | 1,607,387 | $467.8M | 0.05% | −534,176−24.9% | Reduced |
| Longview Partners (Guernsey) LTD | 1,708,604 | $497.2M | 3.32% | −122,399−6.7% | Reduced |
| Neuberger Berman Group LLC | 1,745,113 | $507.9M | 0.44% | −383,224−18.0% | Reduced |
| GQG Partners LLC | 1,758,547 | $511.8M | 1.08% | −432,915−19.8% | Reduced |
| Independent Franchise Partners LLP | 1,933,361 | $562.6M | 4.78% | −93,004−4.6% | Reduced |
| Eagle Capital Management LLC | 1,981,589 | $576.7M | 2.45% | +241,300+13.9% | Added |
| Northern Trust Corp | 2,142,698 | $623.6M | 0.11% | −102,211−4.6% | Reduced |
| Mackenzie Financial Corp | 2,331,132 | $678.4M | 1.02% | +179,238+8.3% | Added |
| Sustainable Growth Advisers, LP | 2,678,026 | $779.4M | 3.55% | +212,144+8.6% | Added |
| Lazard Asset Management LLC | 3,819,326 | $1.11B | 1.41% | −660,326−14.7% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.19B | 0.34% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 4,195,483 | $1.22B | 0.13% | +441,268+11.8% | Added |
| WCM Investment Management, LLC | 4,438,294 | $1.28B | 3.55% | −475,895−9.7% | Reduced |
| Mawer Investment Management Ltd. | 4,423,002 | $1.29B | 6.59% | −77,367−1.7% | Reduced |
| Capital International Investors | 5,524,730 | $1.61B | 0.36% | +22,346+0.4% | Added |
| Morgan Stanley | 6,190,104 | $1.80B | 0.16% | +430,174+7.5% | Added |
| State Street Corp | 8,213,942 | $2.39B | 0.12% | +167,107+2.1% | Added |
| Capital World Investors | 9,741,551 | $2.83B | 0.50% | −34,442−0.4% | Reduced |
| Massachusetts Financial Services Co | 12,472,342 | $3.63B | 1.17% | −1,138,822−8.4% | Reduced |
| BlackRock Inc. | 13,428,591 | $3.91B | 0.10% | +290,418+2.2% | Added |
| Vanguard Group Inc | 17,597,172 | $5.12B | 0.11% | +38,761+0.2% | Added |
| Transamerica Financial Advisors, Inc. | 1 | – | – | 00.0% | Unchanged |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −665,661−100.0% | Sold out |
| Permian Investment Partners, LP | 0 | $0 | 0.00% | −303,700−100.0% | Sold out |
| Trinity Street Asset Management LLP | 0 | $0 | 0.00% | −56,225−100.0% | Sold out |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −49,591−100.0% | Sold out |
| Railway Pension Investments Ltd | 0 | $0 | 0.00% | −45,800−100.0% | Sold out |
| Oribel Capital Management, LP | 0 | $0 | 0.00% | −27,900−100.0% | Sold out |
| Aperture Investors, LLC | 0 | $0 | 0.00% | −19,971−100.0% | Sold out |
| William Blair Investment Management, LLC | 0 | $0 | 0.00% | −17,201−100.0% | Sold out |
| Kickstand Ventures, LLC. | 0 | $0 | 0.00% | −14,444−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −9,678−100.0% | Sold out |
| George Kaiser Family Foundation | 0 | $0 | 0.00% | −7,537−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −5,965−100.0% | Sold out |
| Retireful, LLC | 0 | $0 | 0.00% | −5,583−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −4,857−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −4,500−100.0% | Sold out |
| Steel Peak Wealth Management LLC | 0 | $0 | 0.00% | −3,986−100.0% | Sold out |
| CTC Alternative Strategies, Ltd. | 0 | $0 | 0.00% | −3,900−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −3,688−100.0% | Sold out |
| Symmetry Partners, LLC | 0 | $0 | 0.00% | −3,534−100.0% | Sold out |
| Calamos Wealth Management LLC | 0 | $0 | 0.00% | −3,524−100.0% | Sold out |
| TrimTabs Asset Management, LLC | 0 | $0 | 0.00% | −3,117−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −2,900−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −2,603−100.0% | Sold out |
| Roundview Capital LLC | 0 | $0 | 0.00% | −2,596−100.0% | Sold out |
| Moody National Bank Trust Division | 0 | $0 | 0.00% | −2,307−100.0% | Sold out |
| SkyView Investment Advisors, LLC | 0 | $0 | 0.00% | −2,305−100.0% | Sold out |
| Toews Corp | 0 | $0 | 0.00% | −2,300−100.0% | Sold out |
| Mutual Advisors, LLC | 0 | $0 | 0.00% | −1,780−100.0% | Sold out |
| Fisher Asset Management, LLC | 0 | $0 | 0.00% | −1,685−100.0% | Sold out |
| Stokes Family Office, LLC | 0 | $0 | 0.00% | −1,662−100.0% | Sold out |
| La Banque Postale Asset Management SA | 0 | $0 | 0.00% | −1,526−100.0% | Sold out |
| Great Valley Advisor Group, Inc. | 0 | $0 | 0.00% | −1,388−100.0% | Sold out |
| Wilbanks Smith & Thomas Asset Management LLC | 0 | $0 | 0.00% | −1,294−100.0% | Sold out |