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 2024
Institutional positions in Aon plc as of Mar 31, 2024. 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
- 1,086
- +35 vs. Q4 2023
- Shares held
- 172.0M
- +784.0K (+0.5%) vs. Q4 2023
- Total value
- $57.4B
- +$7.55B (+15.2%) vs. Q4 2023
- New holders
- 133
- 358 more added
- Sold out
- 98
- 415 more reduced
15 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | 1,265 | $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, Q1 2024
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 17,661,672 | $5.89B | 0.12% | +64,500+0.4% | Added |
| BlackRock Inc. | 14,484,928 | $4.83B | 0.11% | +1,056,337+7.9% | Added |
| Massachusetts Financial Services Co | 12,242,867 | $4.09B | 1.22% | −229,475−1.8% | Reduced |
| Capital World Investors | 9,746,563 | $3.25B | 0.54% | +5,012+0.1% | Added |
| State Street Corp | 8,242,463 | $2.75B | 0.12% | +28,521+0.3% | Added |
| Morgan Stanley | 7,214,371 | $2.41B | 0.19% | +1,024,267+16.5% | Added |
| Capital International Investors | 5,241,586 | $1.75B | 0.35% | −283,144−5.1% | Reduced |
| Mawer Investment Management Ltd. | 4,353,681 | $1.45B | 6.74% | −69,321−1.6% | Reduced |
| WCM Investment Management, LLC | 4,335,658 | $1.45B | 3.44% | −102,636−2.3% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.37B | 0.41% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 3,904,270 | $1.30B | 0.12% | −291,213−6.9% | Reduced |
| Lazard Asset Management LLC | 3,434,343 | $1.15B | 1.39% | −384,983−10.1% | Reduced |
| Sustainable Growth Advisers, LP | 2,805,199 | $936.2M | 3.92% | +127,173+4.7% | Added |
| Eagle Capital Management LLC | 2,789,534 | $930.9M | 3.60% | +807,945+40.8% | Added |
| Mackenzie Financial Corp | 2,460,462 | $821.1M | 1.19% | +129,330+5.5% | Added |
| Independent Franchise Partners LLP | 2,360,369 | $787.7M | 6.52% | +427,008+22.1% | Added |
| Northern Trust Corp | 2,034,289 | $678.9M | 0.12% | −108,409−5.1% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,943,733 | $648.7M | 0.90% | +471,424+32.0% | Added |
| Bank of America Corp | 1,852,049 | $618.1M | 0.06% | +244,662+15.2% | Added |
| Neuberger Berman Group LLC | 1,722,279 | $574.8M | 0.48% | −22,834−1.3% | Reduced |
| Longview Partners (Guernsey) LTD | 1,719,104 | $573.7M | 3.70% | +10,500+0.6% | Added |
| Norges Bank | 1,551,583 | $517.8M | 0.08% | +97,973+6.7% | Added |
| Bank of New York Mellon Corp | 1,452,406 | $484.7M | 0.09% | +12,370+0.9% | Added |
| Legal & General Group Plc | 1,415,689 | $472.4M | 0.14% | −30,209−2.1% | Reduced |
| UBS Asset Management Americas Inc | 1,276,364 | $425.9M | 0.15% | −54,020−4.1% | Reduced |
| FIL Ltd | 1,242,477 | $414.6M | 0.41% | +212,300+20.6% | Added |
| Cantillon Capital Management LLC | 1,196,190 | $399.2M | 2.51% | −23,984−2.0% | Reduced |
| Invesco Ltd. | 1,120,599 | $374.0M | 0.08% | −92,559−7.6% | Reduced |
| Charles Schwab Investment Management Inc | 1,077,500 | $359.6M | 0.08% | +19,191+1.8% | Added |
| JPMorgan Chase & Co | 1,063,721 | $355.0M | 0.03% | +100,703+10.5% | Added |
| California Public Employees Retirement System | 1,057,283 | $352.8M | 0.25% | −20,196−1.9% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,003,618 | $334.9M | 0.38% | +712,426+244.7% | Added |
| Boston Partners | 984,445 | $326.9M | 0.39% | +343,635+53.6% | Added |
| Manufacturers Life Insurance Company, The | 964,564 | $321.9M | 0.30% | +14,411+1.5% | Added |
| Barclays PLC | 951,075 | $317.4M | 0.14% | +170,604+21.9% | Added |
| Principal Financial Group Inc | 875,862 | $292.3M | 0.17% | −1,995−0.2% | Reduced |
| Polen Capital Management LLC | 830,116 | $277.0M | 0.64% | +10,500+1.3% | Added |
| C WorldWide Group Holding A/S | 824,075 | $275.0M | 3.13% | −4,689−0.6% | Reduced |
| Meritage Group LP | 774,514 | $258.5M | 6.09% | +774,514 | New |
| Goldman Sachs Group Inc | 752,921 | $251.3M | 0.05% | −231,979−23.6% | Reduced |
| First Pacific Advisors, LP | 721,804 | $240.9M | 3.38% | +8,754+1.2% | Added |
| Ameriprise Financial Inc | 703,975 | $234.9M | 0.06% | +399,677+131.3% | Added |
| Price T Rowe Associates Inc | 658,409 | $219.7M | 0.03% | −222,331−25.2% | Reduced |
| Farallon Capital Management, L.L.C. | 632,000 | $210.9M | 1.24% | +632,000 | New |
| USS Investment Management Ltd | 613,709 | $204.8M | 1.69% | +85,353+16.2% | Added |
| Blair William & Co | 611,165 | $204.0M | 0.64% | −129,876−17.5% | Reduced |
| Dimensional Fund Advisors LP | 609,384 | $203.4M | 0.06% | −156,153−20.4% | Reduced |
| Swiss National Bank | 599,600 | $200.1M | 0.14% | −34,800−5.5% | Reduced |
| Omers Administration Corp | 594,265 | $198.3M | 2.27% | 00.0% | Unchanged |
| Fiera Capital Corp | 567,093 | $189.3M | 0.55% | −111,145−16.4% | Reduced |
| Nuveen Asset Management, LLC | 535,801 | $178.8M | 0.05% | −94,370−15.0% | Reduced |
| Voloridge Investment Management, LLC | 532,488 | $177.7M | 0.65% | +224,445+72.9% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 496,766 | $165.8M | 0.11% | −8,841−1.7% | Reduced |
| Qube Research & Technologies Ltd | 436,778 | $145.8M | 0.26% | −345,384−44.2% | Reduced |
| Royal Bank of Canada | 417,163 | $139.2M | 0.03% | −98,199−19.1% | Reduced |
| Amundi | 413,378 | $127.6M | 0.05% | −36,685−8.2% | Reduced |
| FMR LLC | 375,987 | $125.5M | 0.01% | +68,199+22.2% | Added |
| Envestnet Asset Management Inc | 369,601 | $123.3M | 0.05% | +15,357+4.3% | Added |
| Rhumbline Advisers | 364,623 | $121.7M | 0.12% | −6,615−1.8% | Reduced |
| National Pension Service | 364,094 | $121.5M | 0.15% | +364,094 | New |
| Douglass Winthrop Advisors, LLC | 356,718 | $119.0M | 2.45% | +2,342+0.7% | Added |
| Haverford Trust Co | 347,264 | $115.9M | 1.21% | +1,560+0.5% | Added |
| Assenagon Asset Management S.A. | 344,891 | $115.1M | 0.31% | +276,131+401.6% | Added |
| Natixis Advisors, L.P. | 340,545 | $113.6M | 0.26% | −121,501−26.3% | Reduced |
| Russell Investments Group, Ltd. | 340,076 | $113.5M | 0.18% | +2,904+0.9% | Added |
| California State Teachers Retirement System | 332,663 | $111.0M | 0.14% | +903+0.3% | Added |
| Kovitz Investment Group Partners, LLC | 329,027 | $109.8M | 1.40% | +177,139+116.6% | Added |
| Bank of Montreal | 324,848 | $109.0M | 0.06% | +214+0.1% | Added |
| Wells Fargo & Company | 324,738 | $108.4M | 0.03% | +34,460+11.9% | Added |
| Veritas Asset Management LLP | 311,890 | $104.1M | 0.75% | +311,890 | New |
| New York State Common Retirement Fund | 307,960 | $102.8M | 0.14% | −28,347−8.4% | Reduced |
| BloombergSen Inc. | 305,072 | $101.8M | 8.79% | −6,049−1.9% | Reduced |
| Deutsche Bank AG | 303,731 | $101.4M | 0.05% | −84,575−21.8% | Reduced |
| Point72 Asset Management, L.P. | 300,754 | $100.4M | 0.29% | +290,839+2,933.3% | Added |
| Ceredex Value Advisors LLC | 297,763 | $99.4M | 1.74% | +297,763 | New |
| Prana Capital Management, LP | 289,829 | $96.7M | 4.34% | +120,717+71.4% | Added |
| Credit Suisse AG | 282,523 | $94.3M | 0.09% | −13,553−4.6% | Reduced |
| Davenport & Co LLC | 281,259 | $93.8M | 0.58% | +6,216+2.3% | Added |
| Capital Group Private Client Services, Inc. | 278,846 | $93.1M | 0.95% | −84,363−23.2% | Reduced |
| DekaBank Deutsche Girozentrale | 275,109 | $92.1M | 0.17% | +59,782+27.8% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 275,000 | $91.8M | 0.32% | +188,000+216.1% | Added |
| UBS Group AG | 267,137 | $89.1M | 0.03% | −22,248−7.7% | Reduced |
| Artisan Partners Limited Partnership | 256,482 | $85.6M | 0.12% | −554,934−68.4% | Reduced |
| Pictet Asset Management Holding SA | 252,251 | $84.2M | 0.09% | +26,947+12.0% | Added |
| Schroder Investment Management Group | 242,175 | $80.8M | 0.10% | +15,296+6.7% | Added |
| James Hambro & Partners | 239,360 | $79.9M | 3.74% | +15,495+6.9% | Added |
| Aviva PLC | 238,756 | $79.7M | 0.26% | −7,527−3.1% | Reduced |
| Ensign Peak Advisors, Inc | 235,519 | $78.6M | 0.14% | +31,407+15.4% | Added |
| Nicholas Company, Inc. | 228,245 | $76.2M | 1.26% | 00.0% | Unchanged |
| SEI Investments Co | 226,616 | $75.6M | 0.11% | −40,672−15.2% | Reduced |
| Renaissance Technologies LLC | 221,701 | $74.0M | 0.12% | +92,261+71.3% | Added |
| Zurich Insurance Group Ltd | 219,237 | $73.2M | 0.67% | +137,405+167.9% | Added |
| Alliancebernstein L.P. | 219,168 | $73.1M | 0.03% | −12,618−5.4% | Reduced |
| State Board of Administration of Florida Retirement System | 227,465 | $71.7M | 0.17% | +17,452+8.3% | Added |
| Bowie Capital Management, LLC | 212,395 | $70.9M | 5.83% | +42,273+24.8% | Added |
| Cooper Investors Pty Ltd | 205,299 | $68.5M | 3.95% | −8,964−4.2% | Reduced |
| Woodline Partners LP | 199,078 | $66.4M | 0.61% | +199,078 | New |
| Broad Run Investment Management, LLC | 187,401 | $62.5M | 7.68% | −1,738−0.9% | Reduced |
| New York State Teachers Retirement System | 184,641 | $61.6M | 0.13% | −5,845−3.1% | Reduced |
| Man Group plc | 184,221 | $61.5M | 0.17% | −43,426−19.1% | Reduced |