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 2024
Institutional positions in Aon plc as of Dec 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
- 1,195
- +61 vs. Q3 2024
- Shares held
- 192.5M
- +2.06M (+1.1%) vs. Q3 2024
- Total value
- $69.1B
- +$3.12B (+4.7%) vs. Q3 2024
- New holders
- 143
- 418 more added
- Sold out
- 82
- 408 more reduced
14 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | 1,265 | $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 2024
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 19,519,752 | $7.01B | 0.12% | +88,361+0.5% | Added |
| BlackRock, Inc. | 14,758,861 | $5.30B | 0.11% | +501,175+3.5% | Added |
| Capital World Investors | 12,097,257 | $4.34B | 0.66% | +28,409+0.2% | Added |
| Massachusetts Financial Services Co | 11,616,324 | $4.17B | 1.32% | −548,135−4.5% | Reduced |
| State Street Corp | 9,090,922 | $3.27B | 0.13% | +246,801+2.8% | Added |
| Morgan Stanley | 8,384,281 | $3.01B | 0.21% | +262,244+3.2% | Added |
| JPMorgan Chase & Co | 5,355,382 | $1.92B | 0.15% | +394,679+8.0% | Added |
| Geode Capital Management, LLC | 4,949,919 | $1.77B | 0.14% | +627,742+14.5% | Added |
| HPS Investment Partners, LLC | 4,339,759 | $1.56B | 98.48% | 00.0% | Unchanged |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,100,000 | $1.47B | 0.55% | 00.0% | Unchanged |
| Eagle Capital Management LLC | 3,983,556 | $1.43B | 5.22% | −2,692−0.1% | Reduced |
| Mawer Investment Management Ltd. | 3,902,727 | $1.40B | 6.36% | −366,738−8.6% | Reduced |
| Bank of New York Mellon Corp | 2,564,824 | $921.2M | 0.17% | +343,592+15.5% | Added |
| Lazard Asset Management LLC | 2,337,174 | $839.4M | 1.23% | −330,230−12.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,329,221 | $824.5M | 0.80% | +64,720+2.9% | Added |
| Sustainable Growth Advisers, LP | 2,263,783 | $813.1M | 4.08% | −562,685−19.9% | Reduced |
| Veritas Asset Management LLP | 2,220,648 | $797.6M | 7.44% | −789,909−26.2% | Reduced |
| Northern Trust Corp | 2,158,943 | $775.4M | 0.11% | +183,442+9.3% | Added |
| Neuberger Berman Group LLC | 2,123,862 | $762.8M | 0.61% | +86,148+4.2% | Added |
| Artisan Partners Limited Partnership | 2,067,551 | $742.6M | 1.14% | +960,204+86.7% | Added |
| WCM Investment Management, LLC | 2,045,778 | $732.3M | 1.72% | −1,439,806−41.3% | Reduced |
| Boston Partners | 2,035,998 | $731.8M | 0.89% | +244,706+13.7% | Added |
| Independent Franchise Partners LLP | 2,016,972 | $724.4M | 5.44% | +45,075+2.3% | Added |
| Capital International Investors | 1,924,432 | $691.1M | 0.13% | −124,313−6.1% | Reduced |
| Farallon Capital Management, L.L.C. | 1,832,733 | $658.2M | 3.47% | +126,733+7.4% | Added |
| Norges Bank | 1,661,280 | $596.7M | 0.08% | +89,028+5.7% | Added |
| Bank of America Corp | 1,606,421 | $577.0M | 0.05% | −89,477−5.3% | Reduced |
| Mackenzie Financial Corp | 1,498,753 | $538.3M | 0.73% | −114,668−7.1% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,488,054 | $534.4M | 0.57% | +286,147+23.8% | Added |
| Longview Partners (Guernsey) LTD | 1,468,131 | $527.3M | 3.94% | −60,583−4.0% | Reduced |
| Legal & General Group Plc | 1,379,788 | $495.6M | 0.13% | −24,832−1.8% | Reduced |
| Cantillon Capital Management LLC | 1,323,228 | $475.3M | 2.87% | +7,010+0.5% | Added |
| UBS Asset Management Americas Inc | 1,273,950 | $457.6M | 0.11% | +223,413+21.3% | Added |
| Diamond Hill Capital Management Inc | 1,247,736 | $448.1M | 1.98% | +275,525+28.3% | Added |
| Charles Schwab Investment Management Inc | 1,237,784 | $444.6M | 0.08% | +31,021+2.6% | Added |
| FIL Ltd | 1,160,465 | $416.8M | 0.39% | +1,143+0.1% | Added |
| Goldman Sachs Group Inc | 1,120,399 | $402.4M | 0.08% | +150,954+15.6% | Added |
| Nuveen Asset Management, LLC | 1,025,667 | $368.4M | 0.10% | +248,707+32.0% | Added |
| Invesco Ltd. | 1,021,021 | $366.7M | 0.07% | +56,076+5.8% | Added |
| Meritage Group LP | 996,211 | $357.8M | 8.53% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 988,985 | $355.2M | 0.31% | +130,434+15.2% | Added |
| Ameriprise Financial Inc | 924,066 | $331.9M | 0.09% | −382,085−29.3% | Reduced |
| FMR LLC | 902,192 | $324.0M | 0.02% | +273,236+43.4% | Added |
| UBS Group AG | 889,570 | $319.5M | 0.07% | +327,511+58.3% | Added |
| California Public Employees Retirement System | 854,806 | $307.0M | 0.21% | +11,475+1.4% | Added |
| C WorldWide Group Holding A/S | 744,704 | $267.5M | 3.26% | −62,330−7.7% | Reduced |
| Dimensional Fund Advisors LP | 736,916 | $264.7M | 0.06% | +70,137+10.5% | Added |
| Amundi | 743,665 | $262.1M | 0.09% | +68,143+10.1% | Added |
| First Pacific Advisors, LP | 728,493 | $261.6M | 3.74% | −5,495−0.7% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 720,364 | $258.7M | 0.84% | +157,337+27.9% | Added |
| Polen Capital Management LLC | 719,322 | $258.4M | 0.70% | −62,167−8.0% | Reduced |
| Price T Rowe Associates Inc | 707,723 | $254.2M | 0.03% | −8,273−1.2% | Reduced |
| USS Investment Management Ltd | 643,899 | $231.2M | 1.68% | −3,042−0.5% | Reduced |
| Voya Investment Management LLC | 603,736 | $216.8M | 0.23% | +247,349+69.4% | Added |
| Omers Administration Corp | 602,606 | $216.4M | 1.89% | +1,403+0.2% | Added |
| Blair William & Co | 564,247 | $202.7M | 0.59% | −28,303−4.8% | Reduced |
| Royal Bank of Canada | 562,085 | $201.9M | 0.04% | +216,892+62.8% | Added |
| Swiss National Bank | 552,300 | $198.4M | 0.13% | −28,600−4.9% | Reduced |
| Barclays PLC | 546,544 | $196.3M | 0.10% | −165,013−23.2% | Reduced |
| First Trust Advisors LP | 536,174 | $192.6M | 0.17% | +527,204+5,877.4% | Added |
| Fiera Capital Corp | 497,294 | $178.6M | 0.56% | +12,733+2.6% | Added |
| Balyasny Asset Management LLC | 465,081 | $167.0M | 0.39% | −85,655−15.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 454,374 | $163.2M | 0.11% | −1590.0% | Reduced |
| Deutsche Bank AG | 445,257 | $159.9M | 0.06% | +108,585+32.3% | Added |
| Douglass Winthrop Advisors, LLC | 372,043 | $133.6M | 2.60% | −376−0.1% | Reduced |
| Rhumbline Advisers | 368,790 | $132.5M | 0.12% | −6,014−1.6% | Reduced |
| Envestnet Asset Management Inc | 368,560 | $132.4M | 0.04% | −6,590−1.8% | Reduced |
| Bank of Montreal | 363,483 | $130.5M | 0.07% | −196,510−35.1% | Reduced |
| Fiducient Advisors LLC | 351,437 | $126.2M | 15.59% | −22,954−6.1% | Reduced |
| Haverford Trust Co | 340,218 | $122.2M | 1.21% | +3,178+0.9% | Added |
| National Pension Service | 335,249 | $120.4M | 0.11% | −59,307−15.0% | Reduced |
| California State Teachers Retirement System | 314,294 | $112.9M | 0.13% | −7,815−2.4% | Reduced |
| Kovitz Investment Group Partners, LLC | 302,913 | $108.8M | 0.53% | +1,399+0.5% | Added |
| SEI Investments Co | 300,682 | $108.0M | 0.14% | +61,869+25.9% | Added |
| BNP Paribas Arbitrage, SA | 299,316 | $107.5M | 0.08% | +299,316 | New |
| Wealthspire Advisors, LLC | 296,862 | $106.6M | 1.06% | +14,283+5.1% | Added |
| BloombergSen Inc. | 294,606 | $105.8M | 9.17% | 00.0% | Unchanged |
| Wells Fargo & Company | 284,275 | $102.1M | 0.02% | −11,344−3.8% | Reduced |
| New York State Common Retirement Fund | 281,501 | $101.1M | 0.14% | +1,553+0.6% | Added |
| Natixis Advisors, L.P. | 280,164 | $100.6M | 0.19% | −7,287−2.5% | Reduced |
| Davenport & Co LLC | 278,133 | $99.8M | 0.59% | −2,814−1.0% | Reduced |
| DekaBank Deutsche Girozentrale | 275,444 | $98.4M | 0.18% | 00.0% | Unchanged |
| Bowie Capital Management, LLC | 270,992 | $97.3M | 5.16% | +7,611+2.9% | Added |
| Verition Fund Management LLC | 269,268 | $96.7M | 0.49% | +79,187+41.7% | Added |
| Principal Financial Group Inc | 267,374 | $96.0M | 0.05% | +12,893+5.1% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 260,950 | $93.7M | 4.83% | 00.0% | Unchanged |
| Aviva PLC | 255,760 | $91.9M | 0.24% | +40,850+19.0% | Added |
| National Bank of Canada | 254,581 | $91.4M | 0.12% | +229,366+909.6% | Added |
| Russell Investments Group, Ltd. | 253,485 | $91.0M | 0.13% | −9,991−3.8% | Reduced |
| Woodline Partners LP | 240,757 | $86.5M | 0.59% | −68,997−22.3% | Reduced |
| Raymond James Financial Inc | 240,659 | $86.4M | 0.03% | +240,659 | New |
| Lord, Abbett & Co. LLC | 239,151 | $85.9M | 0.27% | +9,693+4.2% | Added |
| Altrinsic Global Advisors LLC | 237,371 | $85.3M | 4.13% | −10,175−4.1% | Reduced |
| Scharf Investments, LLC | 236,323 | $84.9M | 2.52% | −14,416−5.7% | Reduced |
| Nicholas Company, Inc. | 228,305 | $82.0M | 1.33% | 00.0% | Unchanged |
| Marshall Wace, LLP | 226,478 | $81.3M | 0.10% | +206,695+1,044.8% | Added |
| Alliancebernstein L.P. | 216,641 | $77.8M | 0.03% | −3,767−1.7% | Reduced |
| Ensign Peak Advisors, Inc | 201,005 | $72.2M | 0.13% | −7,749−3.7% | Reduced |
| D. E. Shaw & Co., Inc. | 198,602 | $71.3M | 0.08% | +16,517+9.1% | Added |
| Capital Group Private Client Services, Inc. | 193,450 | $69.5M | 0.64% | −8,217−4.1% | Reduced |