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, Q1 2025
Institutional positions in Aon plc as of Mar 31, 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
- 1,276
- +99 vs. Q4 2024
- Shares held
- 193.6M
- +2.23M (+1.2%) vs. Q4 2024
- Total value
- $77.1B
- +$8.37B (+12.2%) vs. Q4 2024
- New holders
- 168
- 469 more added
- Sold out
- 69
- 398 more reduced
19 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kovitz Investment Group Partners, LLC | 327,323 | $130.6M | 0.66% | +24,410+8.1% | Added |
| Woodline Partners LP | 336,515 | $134.3M | 0.87% | +95,758+39.8% | Added |
| National Pension Service | 349,161 | $139.3M | 0.13% | +13,912+4.1% | Added |
| Douglass Winthrop Advisors, LLC | 367,700 | $146.7M | 2.79% | −4,343−1.2% | Reduced |
| BNP Paribas Arbitrage, SA | 368,291 | $147.0M | 0.11% | +68,975+23.0% | Added |
| Bank of Montreal | 370,191 | $147.7M | 0.08% | +6,708+1.8% | Added |
| Rhumbline Advisers | 377,368 | $150.6M | 0.14% | +8,578+2.3% | Added |
| Haverford Trust Co | 386,749 | $154.3M | 1.55% | +46,531+13.7% | Added |
| Wells Fargo & Company | 402,731 | $160.7M | 0.04% | +118,456+41.7% | Added |
| SEI Investments Co | 419,101 | $167.3M | 0.22% | +118,419+39.4% | Added |
| Fiducient Advisors LLC | 424,865 | $169.6M | 21.19% | +73,428+20.9% | Added |
| Millennium Management LLC | 425,678 | $169.9M | 0.16% | +359,249+540.8% | Added |
| Balyasny Asset Management LLC | 428,842 | $171.1M | 0.43% | −36,239−7.8% | Reduced |
| Fiera Capital Corp | 453,395 | $180.9M | 0.65% | −43,899−8.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 453,955 | $181.2M | 0.13% | −419−0.1% | Reduced |
| Envestnet Asset Management Inc | 461,160 | $184.0M | 0.06% | +92,600+25.1% | Added |
| Deutsche Bank AG | 470,695 | $187.8M | 0.07% | +25,438+5.7% | Added |
| Assenagon Asset Management S.A. | 493,694 | $197.0M | 0.35% | +331,888+205.1% | Added |
| First Trust Advisors LP | 517,371 | $206.5M | 0.18% | −18,803−3.5% | Reduced |
| Swiss National Bank | 549,000 | $219.1M | 0.15% | −3,300−0.6% | Reduced |
| Blair William & Co | 554,750 | $221.4M | 0.67% | −9,497−1.7% | Reduced |
| Omers Administration Corp | 601,417 | $240.0M | 2.10% | −1,189−0.2% | Reduced |
| USS Investment Management Ltd | 640,299 | $255.5M | 1.94% | −3,600−0.6% | Reduced |
| Price T Rowe Associates Inc | 661,596 | $264.0M | 0.03% | −46,127−6.5% | Reduced |
| Royal Bank of Canada | 671,679 | $268.1M | 0.06% | +109,594+19.5% | Added |
| First Pacific Advisors, LP | 680,012 | $271.4M | 4.35% | −48,481−6.7% | Reduced |
| C WorldWide Group Holding A/S | 728,758 | $290.8M | 3.61% | −15,946−2.1% | Reduced |
| Voya Investment Management LLC | 744,241 | $297.0M | 0.33% | +140,505+23.3% | Added |
| Dimensional Fund Advisors LP | 812,713 | $324.3M | 0.08% | +75,797+10.3% | Added |
| Amundi | 831,877 | $328.0M | 0.12% | +88,212+11.9% | Added |
| California Public Employees Retirement System | 830,012 | $331.2M | 0.23% | −24,794−2.9% | Reduced |
| Barclays PLC | 878,929 | $350.8M | 0.16% | +332,385+60.8% | Added |
| FMR LLC | 912,181 | $364.0M | 0.02% | +9,989+1.1% | Added |
| Ameriprise Financial Inc | 925,721 | $369.4M | 0.10% | +1,655+0.2% | Added |
| Farallon Capital Management, L.L.C. | 1,361,744 | $378.3M | 2.04% | −470,989−25.7% | Reduced |
| FIL Ltd | 1,074,205 | $428.7M | 0.41% | −86,260−7.4% | Reduced |
| Goldman Sachs Group Inc | 1,124,300 | $448.7M | 0.09% | +3,901+0.3% | Added |
| Invesco Ltd. | 1,158,139 | $462.2M | 0.09% | +137,118+13.4% | Added |
| Diamond Hill Capital Management Inc | 1,212,599 | $483.9M | 2.22% | −35,137−2.8% | Reduced |
| Wellington Management Group LLP | 1,229,382 | $490.6M | 0.09% | +1,229,382 | New |
| Charles Schwab Investment Management Inc | 1,253,997 | $500.5M | 0.09% | +16,213+1.3% | Added |
| Nuveen, LLC | 1,265,651 | $505.1M | 0.16% | +1,265,651 | New |
| Cantillon Capital Management LLC | 1,283,548 | $512.3M | 3.32% | −39,680−3.0% | Reduced |
| UBS Group AG | 1,305,499 | $521.0M | 0.12% | +415,929+46.8% | Added |
| Legal & General Group Plc | 1,321,194 | $527.3M | 0.14% | −58,594−4.2% | Reduced |
| Mackenzie Financial Corp | 1,336,295 | $533.3M | 0.76% | −162,458−10.8% | Reduced |
| UBS Asset Management Americas Inc | 1,370,523 | $547.0M | 0.14% | +96,573+7.6% | Added |
| Longview Partners (Guernsey) LTD | 1,381,341 | $551.3M | 4.44% | −86,790−5.9% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,470,020 | $586.7M | 0.68% | −18,034−1.2% | Reduced |
| Independent Franchise Partners LLP | 1,583,221 | $631.8M | 4.51% | −433,751−21.5% | Reduced |
| Sustainable Growth Advisers, LP | 1,592,962 | $635.7M | 3.55% | −670,821−29.6% | Reduced |
| Norges Bank | 1,665,948 | $664.9M | 0.09% | +4,668+0.3% | Added |
| Capital International Investors | 1,681,579 | $670.8M | 0.13% | −242,853−12.6% | Reduced |
| Veritas Asset Management LLP | 1,839,697 | $734.2M | 7.42% | −380,951−17.2% | Reduced |
| Bank of America Corp | 1,869,779 | $746.2M | 0.07% | +263,358+16.4% | Added |
| WCM Investment Management, LLC | 2,051,816 | $809.5M | 2.08% | +6,038+0.3% | Added |
| Boston Partners | 2,121,607 | $844.5M | 1.02% | +85,609+4.2% | Added |
| Artisan Partners Limited Partnership | 2,135,832 | $852.4M | 1.38% | +68,281+3.3% | Added |
| Neuberger Berman Group LLC | 2,136,107 | $852.5M | 0.71% | +12,245+0.6% | Added |
| Lazard Asset Management LLC | 2,240,955 | $894.3M | 1.37% | −96,219−4.1% | Reduced |
| Northern Trust Corp | 2,290,619 | $914.2M | 0.14% | +131,676+6.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,390,571 | $954.1M | 0.88% | +61,350+2.6% | Added |
| Eagle Capital Management LLC | 2,623,489 | $1.05B | 3.82% | −1,360,067−34.1% | Reduced |
| Polen Capital Management LLC | 3,007,719 | $1.20B | 3.77% | +2,288,397+318.1% | Added |
| Bank of New York Mellon Corp | 3,034,062 | $1.21B | 0.24% | +469,238+18.3% | Added |
| Mawer Investment Management Ltd. | 3,273,574 | $1.31B | 6.31% | −629,153−16.1% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.64B | 0.63% | 00.0% | Unchanged |
| HPS Investment Partners, LLC | 4,339,759 | $1.73B | 99.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 5,414,557 | $2.15B | 0.17% | +464,638+9.4% | Added |
| JPMorgan Chase & Co | 5,656,323 | $2.26B | 0.17% | +300,941+5.6% | Added |
| Morgan Stanley | 8,726,304 | $3.48B | 0.25% | +342,023+4.1% | Added |
| State Street Corp | 9,173,788 | $3.66B | 0.15% | +82,866+0.9% | Added |
| Massachusetts Financial Services Co | 9,832,327 | $3.92B | 1.30% | −1,783,997−15.4% | Reduced |
| Capital World Investors | 12,097,577 | $4.83B | 0.78% | +3200.0% | Added |
| BlackRock, Inc. | 15,099,285 | $6.03B | 0.13% | +340,424+2.3% | Added |
| Vanguard Group Inc | 19,778,451 | $7.89B | 0.14% | +258,699+1.3% | Added |
| Proequities, Inc. | 0 | $0 | 0.00% | −206−100.0% | Sold out |
| Meritage Group LP | 0 | $0 | 0.00% | −996,211−100.0% | Sold out |
| Viking Global Investors LPSuperinvestorViking Global Investors | 0 | $0 | 0.00% | −720,364−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −165,734−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −65,300−100.0% | Sold out |
| Nearwater Capital Markets, Ltd | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −15,513−100.0% | Sold out |
| Sone Capital Management, LLC | 0 | $0 | 0.00% | −14,489−100.0% | Sold out |
| Partners Capital Investment Group, LLP | 0 | $0 | 0.00% | −13,311−100.0% | Sold out |
| Stance Capital LLC | 0 | $0 | 0.00% | −12,260−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −10,400−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −10,337−100.0% | Sold out |
| Siemens Fonds Invest GmbH | 0 | $0 | 0.00% | −7,032−100.0% | Sold out |
| First Hawaiian Bank | 0 | $0 | 0.00% | −5,481−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −5,188−100.0% | Sold out |
| Kerrisdale Advisers, LLC | 0 | $0 | 0.00% | −4,898−100.0% | Sold out |
| Crestline Management, LP | 0 | $0 | 0.00% | −4,653−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −3,741−100.0% | Sold out |
| AXS Investments LLC | 0 | $0 | 0.00% | −3,520−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −3,321−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −3,078−100.0% | Sold out |
| McAdam, LLC | 0 | $0 | 0.00% | −2,755−100.0% | Sold out |
| Maple Capital Management, Inc. | 0 | $0 | 0.00% | −2,634−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |