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 2025
Institutional positions in Aon plc as of Sep 30, 2025. 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
- 1,255
- +42 vs. Q2 2025
- Shares held
- 186.0M
- −1.74M (−0.9%) vs. Q2 2025
- Total value
- $66.3B
- −$638.0M (−1.0%) vs. Q2 2025
- New holders
- 127
- 477 more added
- Sold out
- 85
- 401 more reduced
20 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Omers Administration Corp | 601,417 | $214.5M | 1.54% | 00.0% | Unchanged |
| Deutsche Bank AG | 612,707 | $218.5M | 0.07% | +202,326+49.3% | Added |
| Price T Rowe Associates Inc | 614,139 | $219.0M | 0.02% | −7,437−1.2% | Reduced |
| USS Investment Management Ltd | 640,774 | $228.3M | 1.10% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 646,069 | $230.4M | 0.36% | +343,800+113.7% | Added |
| First Pacific Advisors, LP | 654,445 | $233.4M | 3.23% | +2,426+0.4% | Added |
| Barclays PLC | 673,718 | $240.2M | 0.09% | +22,872+3.5% | Added |
| Altrinsic Global Advisors LLC | 682,886 | $243.5M | 9.01% | −9,747−1.4% | Reduced |
| California Public Employees Retirement System | 707,963 | $252.4M | 0.15% | −26,536−3.6% | Reduced |
| Balyasny Asset Management LLC | 846,715 | $301.9M | 0.61% | +846,715 | New |
| Vontobel Holding Ltd. | 889,332 | $317.1M | 1.00% | +428,361+92.9% | Added |
| Citadel Advisors LLC | 907,620 | $323.6M | 0.26% | +778,136+601.0% | Added |
| FIL Ltd | 928,213 | $331.0M | 0.26% | −63,443−6.4% | Reduced |
| Dimensional Fund Advisors LP | 943,833 | $336.5M | 0.07% | +47,335+5.3% | Added |
| Royal Bank of Canada | 945,833 | $337.3M | 0.06% | +296,006+45.6% | Added |
| Nuveen, LLC | 1,048,644 | $373.9M | 0.10% | +3,421+0.3% | Added |
| Longview Partners (Guernsey) LTD | 1,156,754 | $412.5M | 4.31% | −151,207−11.6% | Reduced |
| Ameriprise Financial Inc | 1,181,744 | $421.4M | 0.10% | +121,116+11.4% | Added |
| UBS Group AG | 1,195,838 | $426.4M | 0.08% | −24,148−2.0% | Reduced |
| Cantillon Capital Management LLC | 1,233,741 | $439.9M | 2.42% | −13,613−1.1% | Reduced |
| Invesco Ltd. | 1,249,412 | $445.5M | 0.07% | +1,547+0.1% | Added |
| Lazard Asset Management LLC | 1,260,420 | $449.4M | 0.61% | −562,466−30.9% | Reduced |
| Artisan Partners Limited Partnership | 1,266,770 | $451.7M | 0.65% | −909,275−41.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,295,121 | $461.8M | 0.07% | +11,100+0.9% | Added |
| UBS Asset Management Americas Inc | 1,303,846 | $464.9M | 0.10% | −239,123−15.5% | Reduced |
| Goldman Sachs Group Inc | 1,311,694 | $467.7M | 0.07% | +52,785+4.2% | Added |
| Sustainable Growth Advisers, LP | 1,317,364 | $469.7M | 2.75% | −529,776−28.7% | Reduced |
| Legal & General Group Plc | 1,410,342 | $502.9M | 0.11% | +103,427+7.9% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,414,618 | $504.4M | 1.31% | +1,414,618 | New |
| Amundi | 1,383,137 | $505.8M | 0.16% | +393,951+39.8% | Added |
| Bank of America Corp | 1,435,375 | $511.8M | 0.04% | +11,387+0.8% | Added |
| Diamond Hill Capital Management Inc | 1,563,821 | $557.6M | 2.65% | −10,690−0.7% | Reduced |
| Boston Partners | 1,711,250 | $611.0M | 0.63% | +230,098+15.5% | Added |
| Capital International Investors | 1,756,457 | $626.2M | 0.10% | +53,377+3.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,823,442 | $650.2M | 0.47% | −883,462−32.6% | Reduced |
| WCM Investment Management, LLC | 2,037,843 | $722.7M | 1.50% | −2,400−0.1% | Reduced |
| Veritas Asset Management LLP | 2,053,673 | $732.3M | 7.82% | +332,685+19.3% | Added |
| Independent Franchise Partners LLP | 2,096,486 | $747.6M | 4.93% | +615,570+41.6% | Added |
| Northern Trust Corp | 2,213,069 | $789.1M | 0.10% | −55,614−2.5% | Reduced |
| Farallon Capital Management, L.L.C. | 2,278,017 | $812.3M | 4.59% | +291,600+14.7% | Added |
| Eagle Capital Management LLC | 2,284,151 | $814.5M | 2.59% | −1080.0% | Reduced |
| Neuberger Berman Group LLC | 2,330,363 | $830.9M | 0.61% | +249,549+12.0% | Added |
| Polen Capital Management LLC | 2,490,167 | $887.9M | 2.88% | −255,460−9.3% | Reduced |
| Mawer Investment Management Ltd. | 2,498,089 | $890.8M | 4.63% | −473,444−15.9% | Reduced |
| JPMorgan Chase & Co | 3,347,197 | $1.19B | 0.08% | −1,352,405−28.8% | Reduced |
| Dodge & Cox | 3,464,683 | $1.24B | 0.67% | +3,464,683 | New |
| Bank of New York Mellon Corp | 3,715,346 | $1.32B | 0.24% | +207,690+5.9% | Added |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.46B | 0.55% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 5,113,297 | $1.82B | 0.12% | −474,982−8.5% | Reduced |
| Morgan Stanley | 6,136,386 | $2.19B | 0.13% | −3,331,026−35.2% | Reduced |
| Massachusetts Financial Services Co | 8,757,686 | $3.12B | 0.97% | −194,325−2.2% | Reduced |
| State Street Corp | 9,229,464 | $3.29B | 0.11% | +105,154+1.2% | Added |
| Capital World Investors | 12,076,697 | $4.31B | 0.59% | −67,540−0.6% | Reduced |
| BlackRock, Inc. | 15,846,586 | $5.65B | 0.10% | −84,174−0.5% | Reduced |
| Vanguard Group Inc | 19,979,391 | $7.12B | 0.11% | −310,352−1.5% | Reduced |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −724,400−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −131,483−100.0% | Sold out |
| Cercano Management LLC | 0 | $0 | 0.00% | −83,237−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −46,492−100.0% | Sold out |
| Unio Capital LLC | 0 | $0 | 0.00% | −44,630−100.0% | Sold out |
| Select Equity Group, L.P. | 0 | $0 | 0.00% | −28,041−100.0% | Sold out |
| Baader Bank INC | 0 | $0 | 0.00% | −16,256−100.0% | Sold out |
| Point72 Europe (London) LLP | 0 | $0 | 0.00% | −9,200−100.0% | Sold out |
| Progressive Investment Management Corp | 0 | $0 | 0.00% | −8,511−100.0% | Sold out |
| Journey Advisory Group, LLC | 0 | $0 | 0.00% | −7,774−100.0% | Sold out |
| Peak Financial Advisors LLC | 0 | $0 | 0.00% | −6,908−100.0% | Sold out |
| Delta Global Management LP | 0 | $0 | 0.00% | −6,601−100.0% | Sold out |
| Pragma Gestao de Patrimonio Ltd | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −4,743−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −3,580−100.0% | Sold out |
| Phoenix Holdings Ltd. | 0 | $0 | 0.00% | −3,143−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,945−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −2,867−100.0% | Sold out |
| Permanens Capital L.P. | 0 | $0 | 0.00% | −2,763−100.0% | Sold out |
| Qtron Investments LLC | 0 | $0 | 0.00% | −2,321−100.0% | Sold out |
| Empirical Asset Management, LLC | 0 | $0 | 0.00% | −2,200−100.0% | Sold out |
| V-Square Quantitative Management LLC | 0 | $0 | 0.00% | −2,176−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −2,110−100.0% | Sold out |
| Deltec Asset Management LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −1,908−100.0% | Sold out |
| Rede Wealth, LLC | 0 | $0 | 0.00% | −1,898−100.0% | Sold out |
| Whittier Trust Co of Nevada Inc | 0 | $0 | 0.00% | −1,784−100.0% | Sold out |
| AustralianSuper Pty Ltd | 0 | $0 | 0.00% | −1,719−100.0% | Sold out |
| Lansing Street Advisors | 0 | $0 | 0.00% | −1,638−100.0% | Sold out |
| OmniStar Financial Group, Inc. | 0 | $0 | 0.00% | −1,616−100.0% | Sold out |
| Gilman Hill Asset Management, LLC | 0 | $0 | 0.00% | −1,578−100.0% | Sold out |
| Texas Capital Bank Wealth Management Services Inc | 0 | $0 | 0.00% | −1,572−100.0% | Sold out |
| Fort Point Capital Partners LLC | 0 | $0 | 0.00% | −1,414−100.0% | Sold out |
| Proficio Capital Partners LLC | 0 | $0 | 0.00% | −1,380−100.0% | Sold out |
| BTS Asset Management, Inc. | 0 | $0 | 0.00% | −1,326−100.0% | Sold out |
| Arjuna Capital | 0 | $0 | 0.00% | −1,294−100.0% | Sold out |
| Great Valley Advisor Group, Inc. | 0 | $0 | 0.00% | −1,279−100.0% | Sold out |
| Sargent Investment Group, LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Meiji Yasuda Life Insurance Co | 0 | $0 | 0.00% | −1,213−100.0% | Sold out |
| Trust Co of Virginia | 0 | $0 | 0.00% | −1,105−100.0% | Sold out |
| ICONIQ Capital, LLC | 0 | $0 | 0.00% | −910−100.0% | Sold out |
| Maripau Wealth Management LLC | 0 | $0 | 0.00% | −897−100.0% | Sold out |
| Guyasuta Investment Advisors Inc | 0 | $0 | 0.00% | −850−100.0% | Sold out |
| J. Safra Sarasin Holding AG | 0 | $0 | 0.00% | −819−100.0% | Sold out |
| Signal Advisors Wealth, LLC | 0 | $0 | 0.00% | −754−100.0% | Sold out |