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, Q4 2021
Institutional positions in Aon plc as of Dec 31, 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
- 995
- +90 vs. Q3 2021
- Shares held
- 188.4M
- −11.6M (−5.8%) vs. Q3 2021
- Total value
- $56.5B
- −$622.9M (−1.1%) vs. Q3 2021
- New holders
- 152
- 283 more added
- Sold out
- 62
- 384 more reduced
12 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massachusetts Financial Services Co | 18,080,934 | $5.43B | 1.49% | −612,123−3.3% | Reduced |
| Vanguard Group Inc | 16,724,965 | $5.03B | 0.11% | −327,736−1.9% | Reduced |
| BlackRock Inc. | 14,390,587 | $4.33B | 0.11% | −1,693,755−10.5% | Reduced |
| State Street Corp | 10,037,405 | $3.02B | 0.14% | +98,794+1.0% | Added |
| Capital International Investors | 6,652,909 | $2.00B | 0.42% | −624,217−8.6% | Reduced |
| Mawer Investment Management Ltd. | 6,156,600 | $1.85B | 8.33% | +66,280+1.1% | Added |
| Lazard Asset Management LLC | 5,366,302 | $1.61B | 1.72% | −447,598−7.7% | Reduced |
| Eagle Capital Management LLC | 4,680,037 | $1.41B | 4.20% | −1,666,679−26.3% | Reduced |
| WCM Investment Management, LLC | 4,612,073 | $1.39B | 3.12% | +24,793+0.5% | Added |
| Capital World Investors | 4,407,216 | $1.32B | 0.21% | +171,508+4.0% | Added |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,396,000 | $1.32B | 0.40% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 3,498,372 | $1.05B | 0.13% | −614,978−15.0% | Reduced |
| Northern Trust Corp | 2,870,606 | $862.8M | 0.14% | −130,798−4.4% | Reduced |
| Neuberger Berman Group LLC | 2,690,606 | $807.0M | 0.63% | −197,166−6.8% | Reduced |
| Longview Partners (Guernsey) LTD | 2,660,310 | $799.6M | 5.10% | −293,577−9.9% | Reduced |
| Wellington Management Group LLP | 2,620,290 | $787.6M | 0.13% | +76,301+3.0% | Added |
| Janus Henderson Group PLC | 2,572,892 | $773.3M | 0.32% | −355,307−12.1% | Reduced |
| Bank of America Corp | 2,458,934 | $739.1M | 0.08% | −327,594−11.8% | Reduced |
| Mackenzie Financial Corp | 2,342,921 | $704.2M | 0.95% | −281,014−10.7% | Reduced |
| Artisan Partners Limited Partnership | 2,338,273 | $702.8M | 0.84% | +155,397+7.1% | Added |
| Independent Franchise Partners LLP | 2,323,854 | $698.5M | 5.50% | −838,647−26.5% | Reduced |
| Bank of New York Mellon Corp | 2,263,530 | $680.3M | 0.12% | −204,882−8.3% | Reduced |
| Legal & General Group Plc | 1,563,419 | $469.9M | 0.14% | −72,975−4.5% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,510,517 | $454.0M | 1.31% | +1,510,517 | New |
| Invesco Ltd. | 1,466,832 | $440.9M | 0.11% | +21,718+1.5% | Added |
| GQG Partners LLC | 1,465,820 | $440.6M | 1.09% | +163,523+12.6% | Added |
| California Public Employees Retirement System | 1,333,767 | $400.9M | 0.27% | −405,039−23.3% | Reduced |
| UBS Asset Management Americas Inc | 1,295,780 | $389.5M | 0.15% | −88,827−6.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,284,035 | $385.9M | 0.47% | −389,388−23.3% | Reduced |
| Royal Bank of Canada | 1,255,264 | $377.3M | 0.09% | −348,826−21.7% | Reduced |
| Price T Rowe Associates Inc | 1,232,373 | $370.4M | 0.03% | −18,400−1.5% | Reduced |
| Cantillon Capital Management LLC | 1,204,090 | $361.9M | 2.39% | −89,052−6.9% | Reduced |
| Farallon Capital Management, L.L.C. | 1,193,486 | $358.7M | 2.03% | −68,829−5.5% | Reduced |
| Dimensional Fund Advisors LP | 1,160,907 | $348.9M | 0.11% | −28,620−2.4% | Reduced |
| First Pacific Advisors, LP | 1,050,316 | $315.7M | 3.92% | −41,383−3.8% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,051,052 | $315.2M | 0.45% | −47,882−4.4% | Reduced |
| Polen Capital Management LLC | 1,042,408 | $313.3M | 0.53% | +20,164+2.0% | Added |
| Charles Schwab Investment Management Inc | 1,030,951 | $309.9M | 0.09% | −1320.0% | Reduced |
| Goldman Sachs Group Inc | 977,108 | $293.7M | 0.07% | −141,935−12.7% | Reduced |
| Morgan Stanley | 967,329 | $290.7M | 0.04% | +207,305+27.3% | Added |
| Boston Partners | 961,718 | $289.0M | 0.35% | −21,508−2.2% | Reduced |
| FMR LLC | 940,094 | $282.6M | 0.02% | +110,070+13.3% | Added |
| Norges Bank | 896,811 | $269.5M | 0.06% | +544,985+154.9% | Added |
| Principal Financial Group Inc | 874,764 | $262.5M | 0.16% | −108,884−11.1% | Reduced |
| Swiss National Bank | 858,074 | $257.9M | 0.16% | −34,100−3.8% | Reduced |
| Parametric Portfolio Associates LLC | 793,193 | $238.4M | 0.12% | +31,053+4.1% | Added |
| New York State Common Retirement Fund | 785,161 | $236.0M | 0.24% | −80,868−9.3% | Reduced |
| Deutsche Bank AG | 748,898 | $225.1M | 0.10% | −8,987−1.2% | Reduced |
| Blair William & Co | 729,200 | $219.2M | 0.69% | +120,405+19.8% | Added |
| Vaughan Nelson Investment Management, L.P. | 643,023 | $193.3M | 1.98% | −14,571−2.2% | Reduced |
| Allianz Asset Management GmbH | 573,733 | $172.4M | 0.13% | +3,396+0.6% | Added |
| Ensign Peak Advisors, Inc | 565,181 | $169.9M | 0.32% | −117,997−17.3% | Reduced |
| Capital Group Private Client Services, Inc. | 544,341 | $163.6M | 1.75% | −6,551−1.2% | Reduced |
| BloombergSen Inc. | 537,945 | $161.7M | 9.46% | −1,472−0.3% | Reduced |
| Broad Run Investment Management, LLC | 500,317 | $150.4M | 9.30% | −1,568−0.3% | Reduced |
| DSM Capital Partners LLC | 499,507 | $150.1M | 1.57% | −205,666−29.2% | Reduced |
| Credit Suisse AG | 492,562 | $148.0M | 0.12% | −36,419−6.9% | Reduced |
| Ameriprise Financial Inc | 485,341 | $145.7M | 0.04% | −872,823−64.3% | Reduced |
| Altrinsic Global Advisors LLC | 483,522 | $145.3M | 4.64% | −175,625−26.6% | Reduced |
| Bessemer Group Inc | 475,650 | $143.0M | 0.29% | −364,524−43.4% | Reduced |
| Frontier Capital Management Co LLC | 472,185 | $141.9M | 1.12% | −64,531−12.0% | Reduced |
| Tesco Pension Investment Ltd | 460,233 | $138.3M | 2.27% | −214,008−31.7% | Reduced |
| Two Sigma Investments, LP | 452,975 | $136.1M | 0.33% | +173,902+62.3% | Added |
| Russell Investments Group, Ltd. | 453,031 | $136.1M | 0.22% | +13,626+3.1% | Added |
| Amundi | 483,083 | $135.5M | 0.09% | +63,064+15.0% | Added |
| Wells Fargo & Company | 440,074 | $132.3M | 0.03% | −25,428−5.5% | Reduced |
| Macquarie Group Ltd | 428,701 | $128.9M | 0.11% | −228,407−34.8% | Reduced |
| Pensioenfonds Rail & Ov | 418,010 | $125.6M | 2.97% | −43,726−9.5% | Reduced |
| Natixis Advisors, L.P. | 416,111 | $125.1M | 0.48% | −6,246−1.5% | Reduced |
| Swedbank AB | 389,284 | $116.7M | 0.20% | +260+0.1% | Added |
| CIBC World Markets Corp | 376,978 | $113.3M | 0.60% | +87,840+30.4% | Added |
| California State Teachers Retirement System | 349,433 | $105.0M | 0.12% | +11,437+3.4% | Added |
| Atlanta Capital Management Co L L C | 348,593 | $104.8M | 0.35% | +2,303+0.7% | Added |
| Douglass Winthrop Advisors, LLC | 343,252 | $103.2M | 2.31% | +1,092+0.3% | Added |
| Capital International Inc | 341,550 | $102.7M | 0.95% | −2,458−0.7% | Reduced |
| Polar Capital Holdings Plc | 337,500 | $101.4M | 0.53% | −38,750−10.3% | Reduced |
| Rhumbline Advisers | 336,996 | $101.3M | 0.12% | +1,527+0.5% | Added |
| Kovitz Investment Group Partners, LLC | 455,044 | $100.0M | 2.36% | +40,343+9.7% | Added |
| Bank of Montreal | 321,787 | $96.9M | 0.05% | −53,048−14.2% | Reduced |
| Jackson Square Partners, LLC | 302,966 | $91.1M | 0.77% | +11,416+3.9% | Added |
| JPMorgan Chase & Co | 300,218 | $90.2M | 0.01% | −279,339−48.2% | Reduced |
| APG Asset Management N.V. | 335,904 | $88.8M | 0.15% | −192,700−36.5% | Reduced |
| Omers Administration Corp | 292,537 | $87.9M | 1.14% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 281,841 | $84.7M | 0.03% | −22,050−7.3% | Reduced |
| Nicholas Company, Inc. | 278,450 | $83.7M | 1.36% | −250.0% | Reduced |
| State Board of Administration of Florida Retirement System | 268,179 | $80.6M | 0.14% | −5,031−1.8% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 250,907 | $75.4M | 3.03% | −144,153−36.5% | Reduced |
| Caisse de Depot Et Placement du Quebec | 249,626 | $75.0M | 0.16% | −28,513−10.3% | Reduced |
| State of Wisconsin Investment Board | 249,036 | $74.8M | 0.14% | −3,209−1.3% | Reduced |
| New York State Teachers Retirement System | 240,851 | $72.4M | 0.14% | −2,007−0.8% | Reduced |
| Davenport & Co LLC | 240,171 | $72.2M | 0.49% | −9,945−4.0% | Reduced |
| Cooper Investors Pty Ltd | 232,371 | $69.8M | 4.41% | −36,131−13.5% | Reduced |
| Marathon Asset Mgmt Ltd | 225,897 | $67.9M | 0.84% | −29,344−11.5% | Reduced |
| Raymond James & Associates | 219,236 | $65.9M | 0.05% | −19,702−8.2% | Reduced |
| Obermeyer Wood Investment Counsel, LLLP | 209,981 | $63.1M | 3.38% | +1,374+0.7% | Added |
| Envestnet Asset Management Inc | 205,404 | $61.7M | 0.03% | +4,244+2.1% | Added |
| Renaissance Technologies LLC | 203,700 | $61.2M | 0.08% | +93,800+85.4% | Added |
| Prudential Financial Inc | 208,168 | $61.1M | 0.08% | −12,814−5.8% | Reduced |
| Canada Pension Plan Investment Board | 200,633 | $60.3M | 0.06% | −11,424−5.4% | Reduced |
| Citigroup Inc | 195,668 | $58.8M | 0.05% | −414,244−67.9% | Reduced |