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 2021
Institutional positions in Aon plc as of Sep 30, 2021. 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
- 917
- +19 vs. Q2 2021
- Shares held
- 200.2M
- −23.0M (−10.3%) vs. Q2 2021
- Total value
- $57.2B
- +$3.91B (+7.3%) vs. Q2 2021
- New holders
- 104
- 293 more added
- Sold out
- 85
- 350 more reduced
14 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massachusetts Financial Services Co | 18,693,057 | $5.34B | 1.56% | −781,309−4.0% | Reduced |
| Vanguard Group Inc | 17,052,701 | $4.87B | 0.12% | +96,676+0.6% | Added |
| BlackRock Inc. | 16,084,342 | $4.60B | 0.13% | −458,717−2.8% | Reduced |
| State Street Corp | 9,938,611 | $2.84B | 0.15% | +600,205+6.4% | Added |
| Capital International Investors | 7,277,126 | $2.08B | 0.48% | −530,480−6.8% | Reduced |
| Eagle Capital Management LLC | 6,346,716 | $1.81B | 5.33% | −213,684−3.3% | Reduced |
| Mawer Investment Management Ltd. | 6,090,320 | $1.74B | 8.34% | +39,608+0.7% | Added |
| Lazard Asset Management LLC | 5,813,900 | $1.66B | 1.87% | −225,921−3.7% | Reduced |
| WCM Investment Management, LLC | 4,587,280 | $1.31B | 3.03% | −32,443−0.7% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,396,000 | $1.26B | 0.43% | 00.0% | Unchanged |
| Capital World Investors | 4,235,708 | $1.21B | 0.21% | +1,244,515+41.6% | Added |
| Geode Capital Management, LLC | 4,113,350 | $1.17B | 0.16% | +166,198+4.2% | Added |
| Independent Franchise Partners LLP | 3,162,501 | $903.7M | 7.10% | −236,352−7.0% | Reduced |
| Northern Trust Corp | 3,001,404 | $857.7M | 0.15% | +181,554+6.4% | Added |
| Longview Partners (Guernsey) LTD | 2,953,887 | $844.1M | 5.32% | −523,059−15.0% | Reduced |
| Janus Henderson Group PLC | 2,928,199 | $836.8M | 0.37% | −1,106,759−27.4% | Reduced |
| Neuberger Berman Group LLC | 2,887,772 | $824.2M | 0.72% | −946,654−24.7% | Reduced |
| Bank of America Corp | 2,786,528 | $796.3M | 0.09% | −173,197−5.9% | Reduced |
| Mackenzie Financial Corp | 2,623,935 | $749.8M | 1.06% | −213,443−7.5% | Reduced |
| Wellington Management Group LLP | 2,543,989 | $727.0M | 0.12% | +212,028+9.1% | Added |
| Bank of New York Mellon Corp | 2,468,412 | $705.4M | 0.14% | +258,791+11.7% | Added |
| Artisan Partners Limited Partnership | 2,182,876 | $623.8M | 0.76% | +290,876+15.4% | Added |
| California Public Employees Retirement System | 1,738,806 | $496.9M | 0.37% | +9,896+0.6% | Added |
| Arrowstreet Capital, Limited Partnership | 1,673,423 | $478.2M | 0.60% | −176,237−9.5% | Reduced |
| Legal & General Group Plc | 1,636,394 | $467.6M | 0.15% | +87,498+5.6% | Added |
| Royal Bank of Canada | 1,604,090 | $458.4M | 0.13% | +77,587+5.1% | Added |
| Invesco Ltd. | 1,445,114 | $413.0M | 0.10% | −372,363−20.5% | Reduced |
| UBS Asset Management Americas Inc | 1,384,607 | $395.7M | 0.16% | −16,717−1.2% | Reduced |
| Ameriprise Financial Inc | 1,358,164 | $388.5M | 0.12% | −69,014−4.8% | Reduced |
| GQG Partners LLC | 1,302,297 | $372.2M | 1.02% | +30,998+2.4% | Added |
| Cantillon Capital Management LLC | 1,293,142 | $369.5M | 2.52% | −23,289−1.8% | Reduced |
| Farallon Capital Management, L.L.C. | 1,262,315 | $360.7M | 1.94% | −1,380,299−52.2% | Reduced |
| Price T Rowe Associates Inc | 1,250,773 | $357.4M | 0.03% | −8,561−0.7% | Reduced |
| Dimensional Fund Advisors LP | 1,189,527 | $340.0M | 0.11% | +7,273+0.6% | Added |
| Goldman Sachs Group Inc | 1,119,043 | $319.8M | 0.08% | −583,689−34.3% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,098,934 | $314.1M | 0.51% | +12,469+1.1% | Added |
| First Pacific Advisors, LP | 1,091,699 | $312.0M | 4.05% | −85,829−7.3% | Reduced |
| Charles Schwab Investment Management Inc | 1,031,083 | $294.7M | 0.10% | +9,216+0.9% | Added |
| Polen Capital Management LLC | 1,022,244 | $292.1M | 0.54% | +209,597+25.8% | Added |
| Principal Financial Group Inc | 983,648 | $281.1M | 0.18% | −58,693−5.6% | Reduced |
| Boston Partners | 983,226 | $281.0M | 0.36% | +30,004+3.1% | Added |
| Swiss National Bank | 892,174 | $255.0M | 0.16% | −29,300−3.2% | Reduced |
| New York State Common Retirement Fund | 866,029 | $247.5M | 0.26% | −1030.0% | Reduced |
| Bessemer Group Inc | 840,174 | $240.1M | 0.51% | +9,609+1.2% | Added |
| FMR LLC | 830,024 | $237.2M | 0.02% | −3,913−0.5% | Reduced |
| Parametric Portfolio Associates LLC | 762,140 | $217.8M | 0.12% | +26,139+3.6% | Added |
| Morgan Stanley | 760,024 | $217.2M | 0.03% | −112,505−12.9% | Reduced |
| Deutsche Bank AG | 757,885 | $216.6M | 0.10% | −33,230−4.2% | Reduced |
| DSM Capital Partners LLC | 705,173 | $201.7M | 2.09% | −15,973−2.2% | Reduced |
| Ensign Peak Advisors, Inc | 683,178 | $195.2M | 0.41% | −29,078−4.1% | Reduced |
| Tesco Pension Investment Ltd | 674,241 | $192.7M | 3.54% | −95,592−12.4% | Reduced |
| Altrinsic Global Advisors LLC | 659,147 | $188.4M | 5.65% | −462,326−41.2% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 657,594 | $187.9M | 1.91% | −199,607−23.3% | Reduced |
| Macquarie Group Ltd | 657,108 | $187.8M | 0.16% | −121,088−15.6% | Reduced |
| Citigroup Inc | 609,912 | $174.3M | 0.17% | +269,044+78.9% | Added |
| Blair William & Co | 608,795 | $174.0M | 0.59% | +1,385+0.2% | Added |
| D. E. Shaw & Co., Inc. | 597,410 | $170.7M | 0.22% | +45,369+8.2% | Added |
| JPMorgan Chase & Co | 579,557 | $165.6M | 0.02% | −84,549−12.7% | Reduced |
| Allianz Asset Management GmbH | 570,337 | $163.0M | 0.14% | +62,060+12.2% | Added |
| Capital Group Private Client Services, Inc. | 550,892 | $157.4M | 1.83% | +550,892 | New |
| BloombergSen Inc. | 539,417 | $154.1M | 9.89% | +40,944+8.2% | Added |
| Frontier Capital Management Co LLC | 536,716 | $153.4M | 1.21% | +15,060+2.9% | Added |
| Credit Suisse AG | 528,981 | $151.2M | 0.12% | −91,702−14.8% | Reduced |
| Broad Run Investment Management, LLC | 501,885 | $143.4M | 9.19% | −29,770−5.6% | Reduced |
| Wells Fargo & Company | 465,502 | $133.0M | 0.03% | +78,188+20.2% | Added |
| Pensioenfonds Rail & Ov | 461,736 | $131.9M | 3.33% | −123,976−21.2% | Reduced |
| APG Asset Management N.V. | 528,604 | $130.3M | 0.23% | +9,100+1.8% | Added |
| Russell Investments Group, Ltd. | 439,405 | $125.7M | 0.21% | +18,887+4.5% | Added |
| Natixis Advisors, L.P. | 422,357 | $120.7M | 0.50% | −29,658−6.6% | Reduced |
| Amundi | 420,019 | $120.0M | 0.08% | +160,882+62.1% | Added |
| Kovitz Investment Group Partners, LLC | 414,701 | $118.5M | 2.37% | −136,436−24.8% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 395,060 | $112.9M | 4.73% | −27,790−6.6% | Reduced |
| Swedbank AB | 389,024 | $111.2M | 0.21% | −2,395−0.6% | Reduced |
| Bank of Montreal | 374,835 | $109.4M | 0.05% | −30,910−7.6% | Reduced |
| Polar Capital Holdings Plc | 376,250 | $107.5M | 0.59% | −21,250−5.3% | Reduced |
| Norges Bank | 351,826 | $100.5M | 0.02% | +49,729+16.5% | Added |
| Atlanta Capital Management Co L L C | 346,290 | $99.0M | 0.35% | −1110.0% | Reduced |
| Capital International Inc | 344,008 | $98.3M | 0.95% | −44,408−11.4% | Reduced |
| Douglass Winthrop Advisors, LLC | 342,160 | $97.8M | 2.40% | +13,398+4.1% | Added |
| California State Teachers Retirement System | 337,996 | $96.6M | 0.12% | −7,341−2.1% | Reduced |
| Rhumbline Advisers | 335,469 | $95.9M | 0.13% | −10,297−3.0% | Reduced |
| Millennium Management LLC | 326,848 | $93.4M | 0.12% | −240,715−42.4% | Reduced |
| Alliancebernstein L.P. | 303,891 | $86.8M | 0.03% | +1,569+0.5% | Added |
| AustralianSuper Pty Ltd | 295,226 | $84.4M | 0.54% | +8,780+3.1% | Added |
| Omers Administration Corp | 292,537 | $83.6M | 1.22% | +292,537 | New |
| Jackson Square Partners, LLC | 291,550 | $83.3M | 0.53% | +86,627+42.3% | Added |
| CIBC World Markets Corp | 289,138 | $82.6M | 0.56% | +2,159+0.8% | Added |
| Two Sigma Investments, LP | 279,073 | $79.8M | 0.21% | −180,841−39.3% | Reduced |
| Nicholas Company, Inc. | 278,475 | $79.6M | 1.40% | +150.0% | Added |
| Caisse de Depot Et Placement du Quebec | 278,139 | $79.5M | 0.17% | +112,076+67.5% | Added |
| State Board of Administration of Florida Retirement System | 273,210 | $78.1M | 0.15% | −9,504−3.4% | Reduced |
| Cooper Investors Pty Ltd | 268,502 | $76.7M | 5.08% | −14,665−5.2% | Reduced |
| Marathon Asset Mgmt Ltd | 255,241 | $72.9M | 0.88% | +255,241 | New |
| State of Wisconsin Investment Board | 252,245 | $72.1M | 0.15% | −196,878−43.8% | Reduced |
| Davenport & Co LLC | 250,116 | $71.5M | 0.50% | −108,401−30.2% | Reduced |
| New York State Teachers Retirement System | 242,858 | $69.4M | 0.15% | −2,613−1.1% | Reduced |
| Raymond James & Associates | 238,938 | $68.3M | 0.06% | +3,758+1.6% | Added |
| Pictet Asset Management SA | 231,383 | $66.1M | 0.07% | +231,383 | New |
| Manufacturers Life Insurance Company, The | 222,774 | $63.7M | 0.05% | +15,521+7.5% | Added |
| Prudential Financial Inc | 220,982 | $63.7M | 0.09% | +30,155+15.8% | Added |