Aon PLC Class AAON
13F holders, Q4 2024 (December 31)1,185holders +44
72new positions
80sold out
13famous investors
$358.99avg. 13F price*
At the end of Q4 2024, 1,185 institutions reported holding Aon PLC Class A (AON) in their 13F filings, up 44 from Q3 2024. 72 opened new positions and 80 sold out. The largest holders were Vanguard Group Inc. ($7.0B), BlackRock, Inc. ($5.3B) and Capital World Investors ($4.3B). 13 famous investors held it, including Andreas Halvorsen (0.8% of Viking Global Investors's portfolio), Warren Buffett (0.6% of Berkshire Hathaway's portfolio) and Tom Gayner (0.4% of Markel Group's portfolio).
- Company
- Aon PLC Class A
- Sector
- Finance
- CUSIP
- G0403H108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 72 | $325.3M |
| Exits | 80 | $296.8M |
All 13F filers, Q3 2024 → Q4 2024: 10,710,729 shares bought and 9,315,497 shares sold, net +1,395,232 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,185 holders
| Vanguard Group Inc. | 0.12% | Add +0.5% | 19,519,752 | $7.0B |
| BlackRock, Inc. | 0.11% | Add +3.5% | 14,758,861 | $5.3B |
| Capital World Investors | 0.66% | Add +0.2% | 12,097,257 | $4.3B |
| Massachusetts Financial Services Co. | 1.32% | Reduce -4.5% | 11,616,324 | $4.2B |
| State Street Corp. | 0.13% | Add +2.8% | 9,090,922 | $3.3B |
| Morgan Stanley | 0.21% | Add +3.2% | 8,384,281 | $3.0B |
| JPMorgan Chase & Co. | 0.15% | Add +8.0% | 5,355,382 | $1.9B |
| Geode Capital Management, LLC | 0.14% | Add +14.5% | 4,949,919 | $1.8B |
| HPS Investment Partners, LLC | 98.48% | No change | 4,339,759 | $1.6B |
| Berkshire Hathaway | 0.55% | No change | 4,100,000 | $1.5B |
| Eagle Capital Management LLC | 5.22% | Reduce -0.1% | 3,983,556 | $1.4B |
| Mawer Investment Management Ltd. | 6.36% | Reduce -8.6% | 3,902,727 | $1.4B |
| Bank of New York Mellon Corp | 0.17% | Add +15.5% | 2,564,824 | $921.2M |
| Lazard Asset Management LLC | 1.33% | Reduce -12.4% | 2,337,174 | $839.4M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.80% | Add +2.9% | 2,329,221 | $824.5M |
| Sustainable Growth Advisers, LP | 4.08% | Reduce -19.9% | 2,263,783 | $813.1M |
| Veritas Asset Management LLP | 7.44% | Reduce -26.2% | 2,220,648 | $797.6M |
| Northern Trust Corp. | 0.11% | Add +9.3% | 2,158,943 | $775.4M |
| Neuberger Berman Group LLC | 0.61% | Add +4.2% | 2,123,862 | $762.8M |
| Artisan Partners Limited Partnership | 1.14% | Add +86.7% | 2,067,551 | $742.6M |
| WCM Investment Management, LLC | 1.72% | Reduce -41.3% | 2,045,778 | $732.3M |
| Boston Partners | 0.89% | Add +13.7% | 2,035,998 | $731.8M |
| Independent Franchise Partners LLP | 5.44% | Add +2.3% | 2,016,972 | $724.4M |
| Capital International Investors | 0.13% | Reduce -6.1% | 1,924,432 | $691.1M |
| Farallon Capital Management, L.L.C. | 3.48% | Add +7.4% | 1,832,733 | $658.2M |
| Norges Bank | 0.08% | Add +5.7% | 1,661,280 | $596.7M |
| Bank of America Corp. | 0.05% | Reduce -5.3% | 1,606,421 | $577.0M |
| Mackenzie Financial Corp. | 0.73% | Reduce -7.1% | 1,498,753 | $538.3M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.58% | Add +23.8% | 1,488,054 | $534.4M |
| Longview Partners (Guernsey) LTD | 3.94% | Reduce -4.0% | 1,468,131 | $527.3M |
| Legal & General Group Plc | 0.13% | Reduce -1.8% | 1,379,788 | $495.6M |
| Cantillon Capital Management LLC | 2.87% | Add +0.5% | 1,323,228 | $475.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.11% | Add +21.3% | 1,273,950 | $457.6M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 1.98% | Add +28.3% | 1,247,736 | $448.1M |
| Charles Schwab Investment Management Inc. | 0.08% | Add +2.6% | 1,237,784 | $444.6M |
| FIL Ltd | 0.39% | Add +0.1% | 1,160,465 | $416.8M |
| Goldman Sachs Group Inc. | 0.08% | Add +15.6% | 1,120,399 | $402.4M |
| Nuveen Asset Management, LLC | 0.10% | Add +32.0% | 1,025,667 | $368.4M |
| Invesco Ltd. | 0.07% | Add +5.8% | 1,021,021 | $366.7M |
| Meritage Group LP | 8.53% | No change | 996,211 | $357.8M |
| Manufacturers Life Insurance Company, The | 0.31% | Add +15.2% | 988,985 | $355.2M |
| Ameriprise Financial Inc. | 0.09% | Reduce -29.3% | 924,066 | $331.9M |
| FMR LLC | 0.02% | Add +43.4% | 902,192 | $324.0M |
| UBS Group AG | 0.07% | Add +58.3% | 889,570 | $319.5M |
| California Public Employees Retirement System | 0.21% | Add +1.4% | 854,806 | $307.0M |
| C WorldWide Group Holding A/S | 3.26% | Reduce -7.7% | 744,704 | $267.5M |
| Dimensional Fund Advisors LP | 0.06% | Add +10.5% | 736,916 | $264.7M |
| Amundi | 0.09% | Add +10.1% | 743,665 | $262.1M |
| First Pacific Advisors, LP | 3.77% | Reduce -0.8% | 728,493 | $261.6M |
| Viking Global Investors | 0.84% | Add +27.9% | 720,364 | $258.7M |
| Polen Capital Management LLC | 0.70% | Reduce -8.0% | 719,322 | $258.4M |
| T. Rowe Price Associates Inc. | 0.03% | Reduce -1.2% | 707,723 | $254.2M |
| USS Investment Management Ltd | 1.68% | Reduce -0.5% | 643,899 | $231.2M |
| Voya Investment Management LLC | 0.26% | Add +69.4% | 603,736 | $216.8M |
| OMERS ADMINISTRATION Corp | 1.89% | Add +0.2% | 602,606 | $216.4M |
| Blair William & Co. | 0.59% | Reduce -4.8% | 564,247 | $202.7M |
| Royal Bank of Canada | 0.04% | Add +62.8% | 562,085 | $201.9M |
| Swiss National Bank | 0.13% | Reduce -4.9% | 552,300 | $198.4M |
| Barclays PLC | 0.10% | Reduce -23.2% | 546,544 | $196.3M |
| First Trust Advisors LP | 0.17% | Add +5877.4% | 536,174 | $192.6M |
| Fiera Capital Corp | 0.56% | Add +2.6% | 497,294 | $178.6M |
| Balyasny Asset Management L.P. | 0.40% | Reduce -15.6% | 465,081 | $167.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.11% | Reduce -0.0% | 454,374 | $163.2M |
| Deutsche Bank AG | 0.06% | Add +32.3% | 445,257 | $159.9M |
| Douglass Winthrop Advisors, LLC | 2.60% | Reduce -0.1% | 372,043 | $133.6M |
| Rhumbline Advisers | 0.12% | Reduce -1.6% | 368,790 | $132.5M |
| Envestnet Asset Management Inc. | 0.04% | Reduce -1.8% | 368,560 | $132.4M |
| Bank of Montreal | 0.07% | Reduce -35.1% | 363,483 | $130.5M |
| Fiducient Advisors LLC | 15.59% | Reduce -6.1% | 351,437 | $126.2M |
| Haverford Trust Co | 1.21% | Add +0.9% | 340,218 | $122.2M |
| National Pension Service | 0.11% | Reduce -15.0% | 335,249 | $120.4M |
| California State Teachers Retirement System | 0.13% | Reduce -2.4% | 314,294 | $112.9M |
| NorthCoast Asset Management LLC | 0.53% | Add +0.5% | 302,913 | $108.8M |
| Sei Investments Co. | 0.14% | Add +25.9% | 300,682 | $108.0M |
| BNP Paribas Financial Markets | 0.08% | New | 299,316 | $107.5M |
| Wealthspire Advisors, LLC | 1.06% | Add +5.0% | 296,862 | $106.6M |
| BloombergSen Inc. | 9.17% | No change | 294,606 | $105.8M |
| Wells Fargo & Company | 0.02% | Reduce -3.8% | 284,275 | $102.1M |
| New York State Common Retirement Fund | 0.14% | Add +0.6% | 281,501 | $101.1M |
| Natixis Advisors, LLC | 0.19% | Reduce -2.5% | 280,164 | $100.6M |
| DAVENPORT & Co LLC | 0.59% | Reduce -1.0% | 278,133 | $99.8M |
| DekaBank Deutsche Girozentrale | 0.18% | No change | 275,444 | $98.4M |
| Bowie Capital Management, LLC | 5.16% | Add +2.9% | 270,992 | $97.3M |
| Verition Fund Management LLC | 0.50% | Add +41.7% | 269,268 | $96.7M |
| Principal Financial Group Inc. | 0.05% | Add +5.1% | 267,374 | $96.0M |
| Weitz Investment Management, Inc. | 4.83% | No change | 260,950 | $93.7M |
| Aviva PLC | 0.24% | Add +19.0% | 255,760 | $91.9M |
| National Bank of Canada | 0.12% | Add +909.6% | 254,581 | $91.4M |
| Russell Investments Group, Ltd. | 0.13% | Reduce -3.8% | 253,485 | $91.0M |
| Woodline Partners LP | 0.59% | Reduce -22.3% | 240,757 | $86.5M |
| Raymond James Financial Inc. | 0.03% | — | 240,659 | $86.4M |
| Lord, Abbett & Co. LLC | 0.28% | Add +4.2% | 239,151 | $85.9M |
| Altrinsic Global Advisors LLC | 4.13% | Reduce -4.1% | 237,371 | $85.3M |
| Scharf Investments, LLC | 2.52% | Reduce -5.8% | 236,323 | $84.9M |
| Nicholas Company, Inc. | 1.33% | No change | 228,305 | $82.0M |
| Marshall Wace, LLP | 0.10% | Add +1044.8% | 226,478 | $81.3M |
| Alliancebernstein L.P. | 0.03% | Reduce -1.7% | 216,641 | $77.8M |
| Ensign Peak Advisors, Inc | 0.13% | Reduce -3.7% | 201,005 | $72.2M |
| D. E. Shaw & Co. | 0.08% | Add +9.1% | 198,602 | $71.3M |
| Capital Group Private Client Services, Inc. | 0.64% | Reduce -4.1% | 193,450 | $69.5M |
"% of holder's portfolio" is AON's weight in each manager's 13F, not the share of Aon PLC Class A the manager owns.