Aon PLC Class AAON
13F holders, Q1 2024 (March 31)1,075holders
12famous investors
$333.54avg. 13F price*
At the end of Q1 2024, 1,075 institutions reported holding Aon PLC Class A (AON) in their 13F filings. The largest holders were Vanguard Group Inc. ($5.9B), BlackRock Inc. ($4.8B) and Massachusetts Financial Services Co. ($4.1B). 12 famous investors held it, including Warren Buffett (0.4% of Berkshire Hathaway's portfolio), Tom Gayner (0.4% of Markel Group's portfolio) and Steve Cohen (0.3% of Point72 Asset Management'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 Q1 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 115 | $1.0B |
| Exits | 94 | $1.1B |
Ownership 1,075 holders
| Vanguard Group Inc. | 0.12% | Add +0.4% | 17,661,672 | $5.9B |
| BlackRock Inc. | 0.11% | Add +7.9% | 14,484,928 | $4.8B |
| Massachusetts Financial Services Co. | 1.22% | Reduce -1.8% | 12,242,867 | $4.1B |
| Capital World Investors | 0.54% | Add +0.1% | 9,746,563 | $3.3B |
| State Street Corp. | 0.12% | Add +0.3% | 8,242,463 | $2.8B |
| Morgan Stanley | 0.19% | Add +16.6% | 7,214,371 | $2.4B |
| Capital International Investors | 0.35% | Reduce -5.1% | 5,241,586 | $1.7B |
| Mawer Investment Management Ltd. | 6.74% | Reduce -1.6% | 4,353,681 | $1.5B |
| WCM Investment Management, LLC | 3.44% | Reduce -2.3% | 4,335,658 | $1.4B |
| Berkshire Hathaway | 0.41% | No change | 4,100,000 | $1.4B |
| Geode Capital Management, LLC | 0.12% | Reduce -6.9% | 3,904,270 | $1.3B |
| Lazard Asset Management LLC | 1.51% | Reduce -10.1% | 3,434,343 | $1.1B |
| Sustainable Growth Advisers, LP | 3.92% | Add +4.8% | 2,805,199 | $936.2M |
| Eagle Capital Management LLC | 3.60% | Add +40.8% | 2,789,534 | $930.9M |
| Mackenzie Financial Corp. | 1.19% | Add +5.5% | 2,460,462 | $821.1M |
| Independent Franchise Partners LLP | 6.52% | Add +22.1% | 2,360,369 | $787.7M |
| Northern Trust Corp. | 0.12% | Reduce -5.1% | 2,034,289 | $678.9M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.90% | Add +32.0% | 1,943,733 | $648.7M |
| Bank of America Corp. | 0.06% | Add +15.2% | 1,852,049 | $618.1M |
| Neuberger Berman Group LLC | 0.48% | Reduce -1.3% | 1,722,279 | $574.8M |
| Longview Partners (Guernsey) LTD | 3.70% | Add +0.6% | 1,719,104 | $573.7M |
| Norges Bank | 0.08% | Add +6.7% | 1,551,583 | $517.8M |
| Bank of New York Mellon Corp | 0.09% | Add +0.9% | 1,452,406 | $484.7M |
| Legal & General Group Plc | 0.14% | Reduce -2.1% | 1,415,689 | $472.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.15% | Reduce -4.1% | 1,276,364 | $425.9M |
| FIL Ltd | 0.41% | Add +20.6% | 1,242,477 | $414.6M |
| Cantillon Capital Management LLC | 2.51% | Reduce -2.0% | 1,196,190 | $399.2M |
| Invesco Ltd. | 0.08% | Reduce -7.6% | 1,120,599 | $374.0M |
| Charles Schwab Investment Management Inc. | 0.08% | Add +1.8% | 1,077,500 | $359.6M |
| JPMorgan Chase & Co. | 0.03% | Add +10.5% | 1,063,721 | $355.0M |
| California Public Employees Retirement System | 0.25% | Reduce -1.9% | 1,057,283 | $352.8M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.39% | Add +244.7% | 1,003,618 | $334.9M |
| Boston Partners | 0.39% | Add +53.6% | 984,445 | $326.9M |
| Manufacturers Life Insurance Company, The | 0.30% | Add +1.5% | 964,564 | $321.9M |
| Barclays PLC | 0.14% | Add +21.9% | 951,075 | $317.4M |
| Principal Financial Group Inc. | 0.17% | Reduce -0.2% | 875,862 | $292.3M |
| Polen Capital Management LLC | 0.64% | Add +1.3% | 830,116 | $277.0M |
| C WorldWide Group Holding A/S | 3.13% | Reduce -0.6% | 824,075 | $275.0M |
| Meritage Group LP | 6.09% | New | 774,514 | $258.5M |
| Goldman Sachs Group Inc. | 0.05% | Reduce -23.6% | 752,921 | $251.3M |
| First Pacific Advisors, LP | 3.44% | Add +1.2% | 721,804 | $240.9M |
| Ameriprise Financial Inc. | 0.06% | Add +131.3% | 703,975 | $234.9M |
| T. Rowe Price Associates Inc. | 0.03% | Reduce -25.2% | 658,409 | $219.7M |
| Farallon Capital Management, L.L.C. | 1.27% | New | 632,000 | $210.9M |
| USS Investment Management Ltd | 1.69% | Add +16.1% | 613,709 | $204.8M |
| Blair William & Co. | 0.64% | Reduce -17.5% | 611,165 | $204.0M |
| Dimensional Fund Advisors LP | 0.06% | Reduce -20.4% | 609,384 | $203.4M |
| Swiss National Bank | 0.14% | Reduce -5.5% | 599,600 | $200.1M |
| OMERS ADMINISTRATION Corp | 2.27% | No change | 594,265 | $198.3M |
| Fiera Capital Corp | 0.55% | Reduce -16.4% | 567,093 | $189.3M |
| Nuveen Asset Management, LLC | 0.05% | Reduce -15.0% | 535,801 | $178.8M |
| Voloridge Investment Management, LLC | 0.65% | Add +72.9% | 532,488 | $177.7M |
| Sumitomo Mitsui Trust Group, Inc. | 0.11% | Reduce -1.8% | 496,766 | $165.8M |
| Qube Research & Technologies Ltd | 0.26% | Reduce -44.2% | 436,778 | $145.8M |
| Royal Bank of Canada | 0.03% | Reduce -19.1% | 417,163 | $139.2M |
| Amundi | 0.06% | Reduce -8.2% | 413,378 | $127.6M |
| FMR LLC | 0.01% | Add +22.2% | 375,987 | $125.5M |
| Envestnet Asset Management Inc. | 0.05% | Add +4.3% | 369,601 | $123.3M |
| Rhumbline Advisers | 0.12% | Reduce -1.8% | 364,623 | $121.7M |
| National Pension Service | 0.15% | New | 364,094 | $121.5M |
| Douglass Winthrop Advisors, LLC | 2.45% | Add +0.7% | 356,718 | $119.0M |
| Haverford Trust Co | 1.21% | Add +0.5% | 347,264 | $115.9M |
| Assenagon Asset Management S.A. | 0.31% | Add +401.6% | 344,891 | $115.1M |
| Natixis Advisors, LLC | 0.26% | Reduce -26.3% | 340,545 | $113.6M |
| Russell Investments Group, Ltd. | 0.18% | Add +0.9% | 340,076 | $113.5M |
| California State Teachers Retirement System | 0.14% | Add +0.3% | 332,663 | $111.0M |
| NorthCoast Asset Management LLC | 1.40% | Add +116.6% | 329,027 | $109.8M |
| Bank of Montreal | 0.03% | Add +0.1% | 324,848 | $109.0M |
| Wells Fargo & Company | 0.03% | Add +11.9% | 324,738 | $108.4M |
| Veritas Asset Management LLP | 0.76% | New | 311,890 | $104.1M |
| New York State Common Retirement Fund | 0.14% | Reduce -8.4% | 307,960 | $102.8M |
| BloombergSen Inc. | 8.79% | Reduce -1.9% | 305,072 | $101.8M |
| Deutsche Bank AG | 0.05% | Reduce -21.8% | 303,731 | $101.4M |
| Point72 Asset Management | 0.30% | Add +2933.3% | 300,754 | $100.4M |
| Ceredex Value Advisors LLC | 1.74% | New | 297,763 | $99.4M |
| Prana Capital Management, LP | 4.34% | Add +71.4% | 289,829 | $96.7M |
| Credit Suisse AG/ | 0.09% | Reduce -4.6% | 282,523 | $94.3M |
| DAVENPORT & Co LLC | 0.58% | Add +2.3% | 281,259 | $93.8M |
| Capital Group Private Client Services, Inc. | 0.95% | Reduce -23.2% | 278,846 | $93.1M |
| DekaBank Deutsche Girozentrale | 0.17% | Add +27.8% | 275,109 | $92.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.32% | Add +216.1% | 275,000 | $91.8M |
| UBS Group AG | 0.03% | Reduce -7.7% | 267,137 | $89.1M |
| Artisan Partners Limited Partnership | 0.12% | Reduce -68.4% | 256,482 | $85.6M |
| Pictet Asset Management Holding SA | 0.09% | Add +12.0% | 252,251 | $84.2M |
| Schroder Investment Management Group | 0.10% | Add +6.7% | 242,175 | $80.8M |
| James Hambro & Partners LLP | 3.74% | Add +6.9% | 239,360 | $79.9M |
| Aviva PLC | 0.27% | Reduce -3.1% | 238,756 | $79.7M |
| Ensign Peak Advisors, Inc | 0.14% | Add +15.4% | 235,519 | $78.6M |
| Nicholas Company, Inc. | 1.26% | No change | 228,245 | $76.2M |
| Sei Investments Co. | 0.11% | Reduce -15.2% | 226,616 | $75.6M |
| Renaissance Technologies | 0.12% | Add +71.3% | 221,701 | $74.0M |
| Zurich Insurance Group Ltd | 0.67% | Add +167.9% | 219,237 | $73.2M |
| Alliancebernstein L.P. | 0.03% | Reduce -5.4% | 219,168 | $73.1M |
| State Board of Administration of Florida Retirement System | 0.17% | Add +8.3% | 227,465 | $71.7M |
| Bowie Capital Management, LLC | 5.83% | Add +24.9% | 212,395 | $70.9M |
| Cooper Investors PTY Ltd. | 3.95% | Reduce -4.2% | 205,299 | $68.5M |
| Woodline Partners LP | 0.61% | New | 199,078 | $66.4M |
| Broad Run Investment Management, LLC | 7.68% | Reduce -0.9% | 187,401 | $62.5M |
| New York State Teachers Retirement System | 0.13% | Reduce -3.1% | 184,641 | $61.6M |
| Man Group plc | 0.17% | Reduce -19.1% | 184,221 | $61.5M |
"% of holder's portfolio" is AON's weight in each manager's 13F, not the share of Aon PLC Class A the manager owns.