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 2025
Institutional positions in Aon plc as of Jun 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
- 1,232
- −27 vs. Q1 2025
- Shares held
- 194.2M
- +975.4K (+0.5%) vs. Q1 2025
- Total value
- $69.3B
- −$7.65B (−9.9%) vs. Q1 2025
- New holders
- 108
- 432 more added
- Sold out
- 135
- 470 more reduced
16 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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 | 1,265 | $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, Q2 2025
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 20,289,743 | $7.24B | 0.12% | +511,292+2.6% | Added |
| BlackRock, Inc. | 15,930,760 | $5.68B | 0.11% | +831,475+5.5% | Added |
| Capital World Investors | 12,144,237 | $4.33B | 0.63% | +46,660+0.4% | Added |
| Morgan Stanley | 9,467,412 | $3.38B | 0.22% | +741,108+8.5% | Added |
| State Street Corp | 9,124,310 | $3.26B | 0.12% | −49,478−0.5% | Reduced |
| Massachusetts Financial Services Co | 8,952,011 | $3.19B | 1.01% | −880,316−9.0% | Reduced |
| Geode Capital Management, LLC | 5,588,279 | $1.99B | 0.14% | +173,722+3.2% | Added |
| JPMorgan Chase & Co | 4,699,602 | $1.68B | 0.12% | −956,721−16.9% | Reduced |
| HPS Investment Partners, LLC | 4,243,321 | $1.51B | 99.49% | −96,438−2.2% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.46B | 0.57% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 3,507,656 | $1.25B | 0.24% | +473,594+15.6% | Added |
| Mawer Investment Management Ltd. | 2,971,533 | $1.06B | 5.38% | −302,041−9.2% | Reduced |
| Polen Capital Management LLC | 2,745,627 | $979.5M | 3.01% | −262,092−8.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,706,904 | $965.7M | 0.77% | +316,333+13.2% | Added |
| Eagle Capital Management LLC | 2,284,259 | $814.9M | 2.69% | −339,230−12.9% | Reduced |
| Northern Trust Corp | 2,268,683 | $809.4M | 0.11% | −21,936−1.0% | Reduced |
| Artisan Partners Limited Partnership | 2,176,045 | $776.3M | 1.16% | +40,213+1.9% | Added |
| Norges Bank | 2,115,346 | $754.7M | 0.09% | +449,398+27.0% | Added |
| Neuberger Berman Group LLC | 2,080,814 | $742.3M | 0.57% | −55,293−2.6% | Reduced |
| WCM Investment Management, LLC | 2,040,243 | $719.7M | 1.64% | −11,573−0.6% | Reduced |
| Farallon Capital Management, L.L.C. | 1,986,417 | $708.7M | 3.23% | +624,673+45.9% | Added |
| Sustainable Growth Advisers, LP | 1,847,140 | $659.0M | 3.40% | +254,178+16.0% | Added |
| Lazard Asset Management LLC | 1,822,886 | $650.3M | 0.89% | −418,069−18.7% | Reduced |
| Veritas Asset Management LLP | 1,720,988 | $614.0M | 6.14% | −118,709−6.5% | Reduced |
| Capital International Investors | 1,703,080 | $607.3M | 0.10% | +21,501+1.3% | Added |
| Diamond Hill Capital Management Inc | 1,574,511 | $561.7M | 2.58% | +361,912+29.8% | Added |
| UBS Asset Management Americas Inc | 1,542,969 | $550.5M | 0.11% | +172,446+12.6% | Added |
| Boston Partners | 1,481,152 | $528.8M | 0.59% | −640,455−30.2% | Reduced |
| Independent Franchise Partners LLP | 1,480,916 | $528.3M | 3.51% | −102,305−6.5% | Reduced |
| FMR LLC | 1,457,728 | $520.1M | 0.03% | +545,547+59.8% | Added |
| Bank of America Corp | 1,423,988 | $508.0M | 0.04% | −445,791−23.8% | Reduced |
| Longview Partners (Guernsey) LTD | 1,307,961 | $466.6M | 4.02% | −73,380−5.3% | Reduced |
| Legal & General Group Plc | 1,306,915 | $466.3M | 0.12% | −14,279−1.1% | Reduced |
| Charles Schwab Investment Management Inc | 1,284,021 | $458.1M | 0.08% | +30,024+2.4% | Added |
| Goldman Sachs Group Inc | 1,258,909 | $449.1M | 0.07% | +134,609+12.0% | Added |
| Invesco Ltd. | 1,247,865 | $445.2M | 0.08% | +89,726+7.7% | Added |
| Cantillon Capital Management LLC | 1,247,354 | $445.0M | 2.57% | −36,194−2.8% | Reduced |
| UBS Group AG | 1,219,986 | $435.2M | 0.09% | −85,513−6.6% | Reduced |
| Wellington Management Group LLP | 1,113,733 | $397.3M | 0.07% | −115,649−9.4% | Reduced |
| Ameriprise Financial Inc | 1,060,628 | $378.4M | 0.09% | +134,907+14.6% | Added |
| Nuveen, LLC | 1,045,223 | $372.9M | 0.10% | −220,428−17.4% | Reduced |
| FIL Ltd | 991,656 | $353.8M | 0.30% | −82,549−7.7% | Reduced |
| Amundi | 989,186 | $347.7M | 0.12% | +157,309+18.9% | Added |
| Dimensional Fund Advisors LP | 896,498 | $319.8M | 0.07% | +83,785+10.3% | Added |
| California Public Employees Retirement System | 734,499 | $262.0M | 0.17% | −95,513−11.5% | Reduced |
| Two Sigma Advisers, LP | 724,400 | $258.4M | 0.53% | +724,400 | New |
| Altrinsic Global Advisors LLC | 692,633 | $247.1M | 8.95% | +456,399+193.2% | Added |
| Mackenzie Financial Corp | 683,556 | $243.9M | 0.32% | −652,739−48.8% | Reduced |
| Voya Investment Management LLC | 678,641 | $242.1M | 0.24% | −65,600−8.8% | Reduced |
| First Pacific Advisors, LP | 652,019 | $232.6M | 3.33% | −27,993−4.1% | Reduced |
| Barclays PLC | 650,846 | $232.2M | 0.09% | −228,083−26.0% | Reduced |
| Royal Bank of Canada | 649,827 | $231.8M | 0.05% | −21,852−3.3% | Reduced |
| USS Investment Management Ltd | 640,774 | $228.6M | 1.43% | +475+0.1% | Added |
| Two Sigma Investments, LP | 629,555 | $224.6M | 0.40% | +624,321+11,928.2% | Added |
| Price T Rowe Associates Inc | 621,576 | $221.8M | 0.03% | −40,020−6.0% | Reduced |
| C WorldWide Group Holding A/S | 620,660 | $221.4M | 3.00% | −108,098−14.8% | Reduced |
| Omers Administration Corp | 601,417 | $214.6M | 1.69% | 00.0% | Unchanged |
| Swiss National Bank | 588,400 | $209.9M | 0.13% | +39,400+7.2% | Added |
| Blair William & Co | 567,987 | $202.6M | 0.56% | +13,237+2.4% | Added |
| First Trust Advisors LP | 552,605 | $197.1M | 0.16% | +35,234+6.8% | Added |
| Fiera Capital Corp | 521,804 | $186.2M | 0.63% | +68,409+15.1% | Added |
| Prana Capital Management, LP | 517,507 | $184.6M | 6.69% | +264,893+104.9% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 463,796 | $165.5M | 0.10% | +9,841+2.2% | Added |
| Vontobel Holding Ltd. | 460,971 | $164.5M | 0.54% | +338,373+276.0% | Added |
| Envestnet Asset Management Inc | 428,491 | $152.9M | 0.04% | −32,669−7.1% | Reduced |
| National Pension Service | 416,461 | $148.6M | 0.13% | +67,300+19.3% | Added |
| Woodline Partners LP | 412,953 | $147.3M | 0.78% | +76,438+22.7% | Added |
| Deutsche Bank AG | 410,381 | $146.4M | 0.05% | −60,314−12.8% | Reduced |
| Wells Fargo & Company | 406,896 | $145.2M | 0.03% | +4,165+1.0% | Added |
| SEI Investments Co | 404,969 | $144.5M | 0.17% | −14,132−3.4% | Reduced |
| Douglass Winthrop Advisors, LLC | 397,087 | $141.7M | 2.56% | +29,387+8.0% | Added |
| Rhumbline Advisers | 394,383 | $140.7M | 0.12% | +17,015+4.5% | Added |
| Haverford Trust Co | 385,302 | $137.5M | 1.31% | −1,447−0.4% | Reduced |
| Alyeska Investment Group, L.P. | 376,714 | $134.4M | 0.48% | +376,714 | New |
| Fiducient Advisors LLC | 338,200 | $120.7M | 14.77% | −86,665−20.4% | Reduced |
| New York State Common Retirement Fund | 333,116 | $118.8M | 0.16% | +13,338+4.2% | Added |
| Bank of Montreal | 323,682 | $115.5M | 0.06% | −46,509−12.6% | Reduced |
| Kovitz Investment Group Partners, LLC | 316,001 | $112.7M | 0.48% | −11,322−3.5% | Reduced |
| California State Teachers Retirement System | 312,618 | $111.5M | 0.12% | +2,806+0.9% | Added |
| Aviva PLC | 311,540 | $111.1M | 0.23% | +61,888+24.8% | Added |
| Manufacturers Life Insurance Company, The | 311,314 | $111.1M | 0.10% | +182,659+142.0% | Added |
| Adage Capital Partners GP, L.L.C. | 302,269 | $107.8M | 0.18% | +131,300+76.8% | Added |
| BNP Paribas Arbitrage, SA | 295,551 | $105.4M | 0.08% | −72,740−19.8% | Reduced |
| Alliancebernstein L.P. | 292,210 | $104.2M | 0.03% | +76,061+35.2% | Added |
| Russell Investments Group, Ltd. | 291,660 | $104.0M | 0.13% | +3,354+1.2% | Added |
| T. Rowe Price Investment Management, Inc. | 287,915 | $102.7M | 0.06% | +3,504+1.2% | Added |
| BloombergSen Inc. | 286,027 | $102.0M | 8.62% | −3,498−1.2% | Reduced |
| Davenport & Co LLC | 276,125 | $98.2M | 0.54% | −80.0% | Reduced |
| Bowie Capital Management, LLC | 272,441 | $97.2M | 4.60% | +40,570+17.5% | Added |
| DekaBank Deutsche Girozentrale | 275,444 | $97.0M | 0.17% | +335+0.1% | Added |
| Principal Financial Group Inc | 261,332 | $93.2M | 0.05% | −4,130−1.6% | Reduced |
| Natixis Advisors, L.P. | 253,905 | $90.6M | 0.14% | −32,607−11.4% | Reduced |
| Verition Fund Management LLC | 253,876 | $90.6M | 0.52% | +9,803+4.0% | Added |
| Raymond James Financial Inc | 252,030 | $89.9M | 0.03% | −20,042−7.4% | Reduced |
| Bristol John W & Co Inc | 249,542 | $89.0M | 1.44% | +249,542 | New |
| Lord, Abbett & Co. LLC | 245,439 | $87.6M | 0.28% | +2,724+1.1% | Added |
| Marshall Wace, LLP | 241,619 | $86.2M | 0.10% | +211,188+694.0% | Added |
| Ensign Peak Advisors, Inc | 239,326 | $85.4M | 0.15% | −20,192−7.8% | Reduced |
| Wealthspire Advisors, LLC | 233,162 | $83.2M | 0.47% | −54,970−19.1% | Reduced |
| Cryder Capital Partners LLP | 231,314 | $82.5M | 4.65% | +231,314 | New |