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 2025
Institutional positions in Aon plc as of Dec 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
- 1,289
- +57 vs. Q3 2025
- Shares held
- 189.1M
- +3.31M (+1.8%) vs. Q3 2025
- Total value
- $66.7B
- +$447.9M (+0.7%) vs. Q3 2025
- New holders
- 156
- 425 more added
- Sold out
- 99
- 478 more reduced
23 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | 1,266 | $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, Q4 2025
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Public Employees Retirement Association of Colorado | 25,794 | $9.10M | 0.03% | −74−0.3% | Reduced |
| Cornerstone Advisors, LLC | 25,800 | $9.10M | 0.30% | 00.0% | Unchanged |
| Fayez Sarofim & Co | 26,336 | $9.29M | 0.02% | +8,297+46.0% | Added |
| M&T Bank Corp | 26,503 | $9.35M | 0.03% | +725+2.8% | Added |
| GHP Investment Advisors, Inc. | 26,518 | $9.36M | 0.38% | −117−0.4% | Reduced |
| Engineers Gate Manager LP | 26,552 | $9.37M | 0.11% | −29,663−52.8% | Reduced |
| State of Alaska, Department of Revenue | 27,065 | $9.55M | 0.10% | −2,205−7.5% | Reduced |
| Susquehanna International Group, LLP | 27,097 | $9.56M | 0.01% | −32,209−54.3% | Reduced |
| Ieq Capital, LLC | 27,347 | $9.65M | 0.03% | +15,108+123.4% | Added |
| Cetera Investment Advisers | 27,494 | $9.70M | 0.01% | +332+1.2% | Added |
| Boston Common Asset Management, LLC | 27,617 | $9.75M | 0.59% | −11,748−29.8% | Reduced |
| Motley Fool Asset Management LLC | 27,819 | $9.82M | 0.38% | −1,064−3.7% | Reduced |
| JustInvest LLC | 28,002 | $9.88M | 0.10% | +437+1.6% | Added |
| Elo Mutual Pension Insurance Co | 28,192 | $9.95M | 0.15% | +949+3.5% | Added |
| American Century Companies Inc | 28,291 | $9.98M | 0.01% | +876+3.2% | Added |
| Macquarie Group Ltd | 28,298 | $9.99M | 0.04% | +1,889+7.2% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 28,366 | $10.0M | 0.08% | +513+1.8% | Added |
| Motco | 29,073 | $10.3M | 0.93% | +110+0.4% | Added |
| Baird Financial Group, Inc. | 29,329 | $10.3M | 0.02% | +825+2.9% | Added |
| Beese Fulmer Investment Management, Inc. | 29,544 | $10.4M | 0.68% | +1,567+5.6% | Added |
| Williams Jones Wealth Management, LLC. | 29,577 | $10.4M | 0.12% | −6,220−17.4% | Reduced |
| Peapack Gladstone Financial Corp | 30,178 | $10.7M | 0.13% | −149−0.5% | Reduced |
| Cercano Management LLC | 30,352 | $10.7M | 0.41% | +30,352 | New |
| Captrust Financial Advisors | 31,191 | $11.0M | 0.02% | +5,701+22.4% | Added |
| US Bancorp | 31,468 | $11.1M | 0.01% | +111+0.4% | Added |
| Police & Firemen's Retirement System of New Jersey | 32,218 | $11.4M | 0.09% | −1,572−4.7% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 32,664 | $11.4M | 0.02% | −40,787−55.5% | Reduced |
| Hudson Bay Capital Management LP | 32,508 | $11.5M | 0.07% | +3,395+11.7% | Added |
| Factory Mutual Insurance Co | 32,700 | $11.5M | 0.12% | −18,300−35.9% | Reduced |
| PBU - The Pension Fund of Early Childhood & Youth Educators | 32,861 | $11.6M | 0.17% | +32,861 | New |
| Borer Denton & Associates, Inc. | 32,944 | $11.6M | 3.92% | −168−0.5% | Reduced |
| Oppenheimer Asset Management Inc. | 32,952 | $11.6M | 0.14% | −11,073−25.2% | Reduced |
| Premier Fund Managers Ltd | 32,828 | $11.7M | 0.67% | −3,000−8.4% | Reduced |
| Tower Bridge Advisors | 33,362 | $11.8M | 1.19% | −1,920−5.4% | Reduced |
| Capital International Ltd | 33,444 | $11.8M | 0.42% | −8,810−20.9% | Reduced |
| NEOS Investment Management LLC | 33,800 | $11.9M | 0.07% | +2,591+8.3% | Added |
| Daiwa Securities Group Inc. | 34,010 | $12.0M | 0.04% | +1,044+3.2% | Added |
| Zevin Asset Management LLC | 34,010 | $12.0M | 1.61% | +1,531+4.7% | Added |
| Sone Capital Management, LLC | 34,302 | $12.1M | 0.98% | −23,859−41.0% | Reduced |
| Utah Retirement Systems | 34,698 | $12.2M | 0.12% | 00.0% | Unchanged |
| 1832 Asset Management L.P. | 34,914 | $12.3M | 0.02% | −3,083−8.1% | Reduced |
| Marshall Wace, LLP | 35,374 | $12.5M | 0.01% | +472+1.4% | Added |
| British Columbia Investment Management Corp | 36,348 | $12.8M | 0.07% | +6,866+23.3% | Added |
| KBC Group NV | 36,782 | $13.0M | 0.03% | +549+1.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 37,552 | $13.3M | 0.04% | +6,509+21.0% | Added |
| Prudential Financial Inc | 37,861 | $13.4M | 0.02% | +3,080+8.9% | Added |
| Entropy Technologies, LP | 38,629 | $13.6M | 0.74% | +29,851+340.1% | Added |
| First Trust Advisors LP | 38,917 | $13.7M | 0.01% | −524,060−93.1% | Reduced |
| Pathstone Holdings, LLC | 38,938 | $13.7M | 0.05% | +1,525+4.1% | Added |
| IFM Investors Pty Ltd | 39,539 | $14.0M | 0.12% | +39,539 | New |
| Creative Planning | 40,030 | $14.1M | 0.01% | +7,934+24.7% | Added |
| Corsair Capital Management, L.P. | 40,101 | $14.2M | 2.34% | +355+0.9% | Added |
| Stephens Inc | 40,256 | $14.2M | 0.18% | +34+0.1% | Added |
| Hantz Financial Services, Inc. | 40,270 | $14.2M | 0.21% | −8,124−16.8% | Reduced |
| Artemis Investment Management LLP | 41,229 | $14.5M | 0.18% | +400+1.0% | Added |
| DnB Asset Management AS | 41,361 | $14.6M | 0.05% | +1,878+4.8% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 41,496 | $14.6M | 0.02% | −26,040−38.6% | Reduced |
| Allianz Asset Management GmbH | 41,747 | $14.7M | 0.02% | +27,565+194.4% | Added |
| GM Advisory Group, Inc. | 41,789 | $14.7M | 0.58% | +80+0.2% | Added |
| HighTower Advisors, LLC | 42,030 | $14.8M | 0.02% | +1,065+2.6% | Added |
| D. E. Shaw & Co., Inc. | 42,435 | $15.0M | 0.01% | −36,805−46.4% | Reduced |
| Capital Group Private Client Services, Inc. | 42,571 | $15.0M | 0.24% | −2,216−4.9% | Reduced |
| Brinker Capital Investments, LLC | 43,322 | $15.3M | 0.11% | −8,640−16.6% | Reduced |
| Kornitzer Capital Management Inc | 44,866 | $15.8M | 0.33% | 00.0% | Unchanged |
| ProShare Advisors LLC | 45,369 | $16.0M | 0.03% | +2,098+4.8% | Added |
| Retirement Systems of Alabama | 45,725 | $16.1M | 0.05% | −271−0.6% | Reduced |
| Amalgamated Bank | 45,751 | $16.1M | 0.12% | −2,524−5.2% | Reduced |
| Varma Mutual Pension Insurance Co | 46,100 | $16.3M | 0.10% | +5,100+12.4% | Added |
| Cerity Partners LLC | 47,193 | $16.7M | 0.02% | +6,794+16.8% | Added |
| Forsta Ap-Fonden | 47,960 | $16.9M | 0.10% | −40−0.1% | Reduced |
| Bank of Nova Scotia | 48,067 | $17.0M | 0.03% | −11,107−18.8% | Reduced |
| Glenmede Trust Co NA | 48,468 | $17.1M | 0.08% | +48,468 | New |
| Mariner, LLC | 48,617 | $17.2M | 0.02% | +7,097+17.1% | Added |
| CIBC World Markets Inc. | 48,938 | $17.3M | 0.03% | −59−0.1% | Reduced |
| Global Frontier Investments LLC | 49,000 | $17.3M | 3.41% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 49,995 | $17.6M | 0.09% | −1,785−3.4% | Reduced |
| Cullen/Frost Bankers, Inc. | 50,223 | $17.7M | 0.19% | +1,920+4.0% | Added |
| Ilmarinen Mutual Pension Insurance Co | 50,272 | $17.7M | 0.14% | +35,000+229.2% | Added |
| Caisse de Depot Et Placement du Quebec | 51,114 | $18.0M | 0.03% | −20,154−28.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 52,665 | $18.6M | 0.02% | +52,665 | New |
| Nisa Investment Advisors, LLC | 53,802 | $19.0M | 0.06% | +2,893+5.7% | Added |
| Abner Herrman & Brock LLC | 54,155 | $19.1M | 1.95% | −1,126−2.0% | Reduced |
| MUFG Securities EMEA plc | 54,511 | $19.2M | 0.22% | +50,384+1,220.8% | Added |
| Xponance, Inc. | 54,582 | $19.3M | 0.14% | +4,019+7.9% | Added |
| Public Sector Pension Investment Board | 54,744 | $19.3M | 0.07% | +8,214+17.7% | Added |
| Qube Research & Technologies Ltd | 54,770 | $19.3M | 0.03% | −55,517−50.3% | Reduced |
| Picton Mahoney Asset Management | 56,124 | $19.8M | 0.22% | +535+1.0% | Added |
| State of Michigan Retirement System | 56,258 | $19.9M | 0.10% | −2,100−3.6% | Reduced |
| Czech National Bank | 56,676 | $20.0M | 0.13% | +1,911+3.5% | Added |
| Avalon Trust Co | 56,886 | $20.1M | 1.30% | +17,301+43.7% | Added |
| Resona Asset Management Co.,Ltd. | 57,523 | $20.3M | 0.10% | −4,239−6.9% | Reduced |
| Arizona State Retirement System | 57,655 | $20.3M | 0.11% | −2,285−3.8% | Reduced |
| Managed Asset Portfolios, LLC | 57,831 | $20.4M | 2.46% | +2,953+5.4% | Added |
| Frontier Capital Management Co LLC | 58,593 | $20.7M | 0.22% | −80,860−58.0% | Reduced |
| MetLife Investment Management | 60,797 | $21.5M | 0.10% | −1,794−2.9% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 61,365 | $21.7M | 0.18% | −15,520−20.2% | Reduced |
| National Bank of Canada | 61,526 | $21.7M | 0.02% | −99,998−61.9% | Reduced |
| Robeco Institutional Asset Management B.V. | 63,195 | $22.3M | 0.03% | +6,721+11.9% | Added |
| Financiere des Professionnels - Fonds d,investissement inc. | 63,703 | $22.5M | 1.27% | +6,742+11.8% | Added |
| LTS One Management LP | 64,700 | $22.8M | 8.82% | +2,200+3.5% | Added |