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.
| 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, Q2 2026
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| California Public Employees Retirement System | 370,835 | $123.0M | 0.07% | −105,107−22.1% | Reduced |
| Jones Financial Companies LLLP | 375,514 | $123.4M | 0.05% | +116,481+45.0% | Added |
| Adage Capital Partners GP, L.L.C. | 380,369 | $126.2M | 0.18% | +158,200+71.2% | Added |
| Verition Fund Management LLC | 385,028 | $127.7M | 0.90% | +156,819+68.7% | Added |
| SEI Investments Co | 385,948 | $128.0M | 0.11% | −65,977−14.6% | Reduced |
| Russell Investments Group, Ltd. | 388,097 | $128.6M | 0.11% | +125,181+47.6% | Added |
| Franklin Resources Inc | 389,485 | $129.2M | 0.03% | +28,170+7.8% | Added |
| Barclays PLC | 394,135 | $130.7M | 0.04% | −206,419−34.4% | Reduced |
| Douglass Winthrop Advisors, LLC | 400,635 | $132.9M | 2.29% | +6,099+1.5% | Added |
| Vanguard Asset Management, Ltd | 408,838 | $135.6M | 0.09% | +46,980+13.0% | Added |
| Fiera Capital Corp | 419,313 | $139.1M | 0.50% | −130,974−23.8% | Reduced |
| BNP Paribas Arbitrage, SA | 446,333 | $148.0M | 0.08% | +77,973+21.2% | Added |
| Natixis Advisors, L.P. | 448,019 | $148.6M | 0.17% | +106,082+31.0% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 453,213 | $150.3M | 0.09% | +5,912+1.3% | Added |
| Vanguard Global Advisers, LLC | 460,517 | $152.7M | 0.07% | −8,613−1.8% | Reduced |
| National Pension Service | 484,892 | $160.8M | 0.10% | +9,349+2.0% | Added |
| USS Investment Management Ltd | 520,768 | $172.7M | 0.68% | +18,288+3.6% | Added |
| Vontobel Holding Ltd. | 540,802 | $179.4M | 0.60% | −458,374−45.9% | Reduced |
| FMR LLC | 551,367 | $182.9M | 0.01% | +28,183+5.4% | Added |
| Royal Bank of Canada | 554,705 | $184.0M | 0.03% | −133,425−19.4% | Reduced |
| Swiss National Bank | 574,100 | $190.4M | 0.10% | −25,160−4.2% | Reduced |
| Deutsche Bank AG | 585,041 | $194.1M | 0.06% | −59,695−9.3% | Reduced |
| Altrinsic Global Advisors LLC | 646,424 | $214.4M | 7.87% | −14,300−2.2% | Reduced |
| First Pacific Advisors, LP | 681,367 | $226.0M | 2.80% | −21,891−3.1% | Reduced |
| Meritage Group LP | 684,518 | $227.0M | 8.75% | +4,349+0.6% | Added |
| Baupost Group LLCSuperinvestorBaupost Group | 687,000 | $227.9M | 4.21% | −82,000−10.7% | Reduced |
| Ameriprise Financial Inc | 692,802 | $229.8M | 0.05% | −387,870−35.9% | Reduced |
| Colony Group, LLC | 706,903 | $234.5M | 0.24% | +76,098+12.1% | Added |
| Wealthspire Advisors, LLC | 726,424 | $240.9M | 1.33% | −257,651−26.2% | Reduced |
| FIL Ltd | 753,981 | $250.1M | 0.18% | +8,022+1.1% | Added |
| Longview Partners (Guernsey) LTD | 768,975 | $255.1M | 4.14% | −207,288−21.2% | Reduced |
| Capital International Investors | 793,989 | $263.1M | 0.05% | −13,086−1.6% | Reduced |
| StonePine Asset Management Inc. | 799,293 | $265.1M | 1.64% | +799,293 | New |
| Comgest Global Investors S.A.S. | 820,270 | $272.1M | 5.99% | +191,570+30.5% | Added |
| UBS Group AG | 822,267 | $272.7M | 0.04% | −81,661−9.0% | Reduced |
| Nuveen, LLC | 878,682 | $291.4M | 0.07% | +27,601+3.2% | Added |
| Amundi | 993,712 | $329.6M | 0.08% | −509,178−33.9% | Reduced |
| Invesco Ltd. | 1,069,331 | $354.7M | 0.03% | −417,292−28.1% | Reduced |
| Diamond Hill Capital Management Inc | 1,114,156 | $369.6M | 2.96% | −373,731−25.1% | Reduced |
| Lazard Asset Management LLC | 1,122,874 | $372.4M | 0.56% | −94,369−7.8% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,151,269 | $381.9M | 1.09% | +64,155+5.9% | Added |
| Mawer Investment Management Ltd. | 1,171,624 | $388.6M | 2.64% | −105,464−8.3% | Reduced |
| Vanguard Fiduciary Trust Co | 1,190,449 | $394.9M | 0.09% | −35,114−2.9% | Reduced |
| Dimensional Fund Advisors LP | 1,240,634 | $411.5M | 0.07% | −13,135−1.0% | Reduced |
| Legal & General Group Plc | 1,288,852 | $427.5M | 0.09% | −52,370−3.9% | Reduced |
| Charles Schwab Investment Management Inc | 1,345,367 | $446.2M | 0.06% | −9,727−0.7% | Reduced |
| Farallon Capital Management, L.L.C. | 1,382,562 | $458.6M | 2.68% | −1,130,076−45.0% | Reduced |
| Veritas Asset Management LLP | 1,408,111 | $467.1M | 8.40% | −112,166−7.4% | Reduced |
| Bank of America Corp | 1,624,970 | $539.0M | 0.03% | +42,290+2.7% | Added |
| Neuberger Berman Group LLC | 1,691,729 | $561.1M | 0.37% | −166,105−8.9% | Reduced |
| Goldman Sachs Group Inc | 1,748,801 | $580.1M | 0.06% | +164,810+10.4% | Added |
| Artisan Partners Limited Partnership | 1,850,623 | $613.8M | 1.00% | +206,471+12.6% | Added |
| WCM Investment Management, LLC | 1,875,859 | $614.5M | 1.11% | −76,520−3.9% | Reduced |
| AQR Capital Management LLC | 1,905,800 | $623.0M | 0.22% | +926,045+94.5% | Added |
| Northern Trust Corp | 2,040,534 | $676.8M | 0.08% | −41,571−2.0% | Reduced |
| Boston Partners | 2,089,773 | $695.8M | 0.62% | +134,741+6.9% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2,255,768 | $748.2M | 0.59% | −692,642−23.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 2,614,754 | $867.3M | 0.38% | +1,817,336+227.9% | Added |
| Independent Franchise Partners LLP | 2,646,943 | $878.0M | 5.76% | +58,941+2.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,753,913 | $913.4M | 0.51% | +237,276+9.4% | Added |
| Norges Bank | 2,796,760 | $927.7M | 0.09% | +2,796,760 | New |
| Price T Rowe Associates Inc | 3,136,640 | $1.04B | 0.10% | +1,855,714+144.9% | Added |
| Bank of New York Mellon Corp | 3,191,212 | $1.06B | 0.17% | −129,880−3.9% | Reduced |
| Geode Capital Management, LLC | 5,180,553 | $1.71B | 0.09% | −63,756−1.2% | Reduced |
| Morgan Stanley | 6,214,787 | $2.06B | 0.11% | −160,158−2.5% | Reduced |
| Vanguard Portfolio Management LLC | 7,202,991 | $2.39B | 0.11% | +2,643,956+58.0% | Added |
| Massachusetts Financial Services Co | 7,615,397 | $2.58B | 0.82% | −742,700−8.9% | Reduced |
| Dodge & Cox | 8,593,144 | $2.85B | 1.49% | +477,049+5.9% | Added |
| State Street Corp | 9,416,039 | $3.12B | 0.09% | +196,266+2.1% | Added |
| Capital World Investors | 11,711,650 | $3.88B | 0.46% | +233,862+2.0% | Added |
| JPMorgan Chase & Co | 12,175,974 | $3.99B | 0.23% | +6,534,543+115.8% | Added |
| Vanguard Capital Management LLC | 13,603,465 | $4.51B | 0.10% | +21,709+0.2% | Added |
| BlackRock, Inc. | 15,716,429 | $5.21B | 0.08% | −432,078−2.7% | Reduced |
| Cantillon Capital Management LLC | 0 | $0 | 0.00% | −1,095,574−100.0% | Sold out |
| Southpoint Capital Advisors LP | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Prana Capital Management, LP | 0 | $0 | 0.00% | −323,458−100.0% | Sold out |
| Eminence Capital, LP | 0 | $0 | 0.00% | −179,019−100.0% | Sold out |
| Zurich Insurance Group Ltd | 0 | $0 | 0.00% | −148,305−100.0% | Sold out |
| M.D. Sass Investors Services, Inc. | 0 | $0 | 0.00% | −142,362−100.0% | Sold out |
| Central Securities Corp | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −71,538−100.0% | Sold out |
| PBU - The Pension Fund of Early Childhood & Youth Educators | 0 | $0 | 0.00% | −52,661−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −33,297−100.0% | Sold out |
| Sone Capital Management, LLC | 0 | $0 | 0.00% | −31,483−100.0% | Sold out |
| Premier Fund Managers Ltd | 0 | $0 | 0.00% | −30,668−100.0% | Sold out |
| Philadelphia Financial Management of San Francisco, LLC | 0 | $0 | 0.00% | −28,000−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −24,328−100.0% | Sold out |
| Blue Sparrow, LLC | 0 | $0 | 0.00% | −18,000−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −16,254−100.0% | Sold out |
| Wedge Capital Management L L P | 0 | $0 | 0.00% | −16,077−100.0% | Sold out |
| Motley Fool Wealth Management, LLC | 0 | $0 | 0.00% | −14,022−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −13,833−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −11,601−100.0% | Sold out |
| Agf Management Ltd | 0 | $0 | 0.00% | −11,388−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −11,353−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −10,159−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −7,433−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −6,843−100.0% | Sold out |
| Ashton Thomas Securities, LLC | 0 | $0 | 0.00% | −6,030−100.0% | Sold out |
| Gamco Investors, Inc. Et Al | 0 | $0 | 0.00% | −5,939−100.0% | Sold out |