Aon PLC Class AAON
13F holders, Q3 2024 (September 30)1,141holders +39
120new positions
76sold out
11famous investors
$345.45avg. 13F price*
At the end of Q3 2024, 1,141 institutions reported holding Aon PLC Class A (AON) in their 13F filings, up 39 from Q2 2024. 120 opened new positions and 76 sold out. The largest holders were Vanguard Group Inc. ($6.7B), BlackRock, Inc. ($4.9B) and Massachusetts Financial Services Co. ($4.2B). 11 famous investors held it, including Andreas Halvorsen (0.7% of Viking Global Investors's portfolio), Warren Buffett (0.5% 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 Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 120 | $978.6M |
| Exits | 76 | $556.1M |
All 13F filers, Q2 2024 → Q3 2024: 11,941,804 shares bought and 8,729,523 shares sold, net +3,212,281 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,141 holders
| Vanguard Group Inc. | 0.12% | Add +0.6% | 19,431,391 | $6.7B |
| BlackRock, Inc. | 0.10% | — | 14,257,686 | $4.9B |
| Massachusetts Financial Services Co. | 1.26% | Reduce -3.1% | 12,164,459 | $4.2B |
| Capital World Investors | 0.65% | Add +0.3% | 12,068,848 | $4.2B |
| State Street Corp. | 0.12% | Add +0.4% | 8,844,121 | $3.1B |
| Morgan Stanley | 0.20% | Reduce -1.0% | 8,122,037 | $2.8B |
| JPMorgan Chase & Co. | 0.14% | Add +91.1% | 4,960,703 | $1.7B |
| HPS Investment Partners, LLC | 97.60% | No change | 4,339,759 | $1.5B |
| Geode Capital Management, LLC | 0.12% | Add +0.9% | 4,322,177 | $1.5B |
| Mawer Investment Management Ltd. | 6.73% | Reduce -3.1% | 4,269,465 | $1.5B |
| Berkshire Hathaway | 0.53% | No change | 4,100,000 | $1.4B |
| Eagle Capital Management LLC | 5.12% | Reduce -0.4% | 3,986,248 | $1.4B |
| WCM Investment Management, LLC | 2.75% | Add +0.0% | 3,485,584 | $1.2B |
| Veritas Asset Management LLP | 7.70% | Add +41.5% | 3,010,557 | $1.0B |
| Sustainable Growth Advisers, LP | 4.14% | Add +2.4% | 2,826,468 | $977.9M |
| Lazard Asset Management LLC | 1.33% | Reduce -18.4% | 2,667,404 | $922.9M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.84% | Add +2.9% | 2,264,501 | $783.5M |
| Bank of New York Mellon Corp | 0.14% | Add +11.0% | 2,221,232 | $768.5M |
| Capital International Investors | 0.14% | Reduce -6.8% | 2,048,745 | $709.0M |
| Neuberger Berman Group LLC | 0.55% | Add +2.6% | 2,037,714 | $705.0M |
| Northern Trust Corp. | 0.11% | Reduce -5.3% | 1,975,501 | $683.5M |
| Independent Franchise Partners LLP | 6.02% | Reduce -18.2% | 1,971,897 | $682.3M |
| Boston Partners | 0.73% | Add +33.3% | 1,791,292 | $620.4M |
| Farallon Capital Management, L.L.C. | 3.27% | Reduce -9.0% | 1,706,000 | $590.3M |
| Bank of America Corp. | 0.05% | Reduce -4.0% | 1,695,898 | $586.8M |
| Mackenzie Financial Corp. | 0.78% | Reduce -15.9% | 1,613,421 | $558.2M |
| Norges Bank | 0.08% | Reduce -20.4% | 1,572,252 | $544.0M |
| Longview Partners (Guernsey) LTD | 3.63% | Add +0.5% | 1,528,714 | $528.9M |
| Legal & General Group Plc | 0.13% | Reduce -1.9% | 1,404,620 | $486.0M |
| Cantillon Capital Management LLC | 2.78% | Add +15.6% | 1,316,218 | $455.4M |
| Ameriprise Financial Inc. | 0.12% | Add +7.2% | 1,306,151 | $451.9M |
| Charles Schwab Investment Management Inc. | 0.08% | Add +1.0% | 1,206,763 | $417.5M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.43% | Add +47.8% | 1,201,907 | $415.8M |
| FIL Ltd | 0.36% | Reduce -15.4% | 1,159,322 | $401.1M |
| Artisan Partners Limited Partnership | 0.57% | Add +12.8% | 1,107,347 | $383.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.09% | Add +334.9% | 1,050,537 | $363.5M |
| Meritage Group LP | 8.05% | Reduce -8.8% | 996,211 | $344.7M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 1.36% | New | 972,211 | $336.4M |
| Goldman Sachs Group Inc. | 0.06% | Reduce -11.8% | 969,445 | $335.4M |
| Invesco Ltd. | 0.06% | Add +0.7% | 964,945 | $333.9M |
| Manufacturers Life Insurance Company, The | 0.26% | Reduce -12.4% | 858,551 | $297.1M |
| California Public Employees Retirement System | 0.20% | Reduce -5.1% | 843,331 | $291.8M |
| C WorldWide Group Holding A/S | 2.90% | Reduce -0.9% | 807,034 | $279.2M |
| Polen Capital Management LLC | 0.70% | Reduce -4.9% | 781,489 | $270.4M |
| Nuveen Asset Management, LLC | 0.08% | Add +12.4% | 776,960 | $268.8M |
| First Pacific Advisors, LP | 3.60% | Reduce -0.4% | 733,988 | $254.0M |
| T. Rowe Price Associates Inc. | 0.03% | Reduce -2.1% | 715,996 | $247.7M |
| Barclays PLC | 0.11% | Reduce -26.7% | 711,557 | $246.2M |
| Amundi | 0.09% | Add +25.4% | 675,522 | $239.1M |
| Dimensional Fund Advisors LP | 0.06% | Add +1.6% | 666,779 | $230.7M |
| USS Investment Management Ltd | 1.64% | Reduce -0.1% | 646,941 | $223.8M |
| FMR LLC | 0.01% | Add +38.5% | 628,956 | $217.6M |
| OMERS ADMINISTRATION Corp | 1.91% | No change | 601,203 | $208.0M |
| Blair William & Co. | 0.60% | Reduce -1.6% | 592,550 | $205.0M |
| Swiss National Bank | 0.13% | Reduce -1.2% | 580,900 | $201.0M |
| Viking Global Investors | 0.71% | New | 563,027 | $194.8M |
| Bank of Montreal | 0.09% | Add +26.0% | 559,993 | $194.7M |
| UBS Group AG | 0.05% | Add +3.5% | 562,059 | $194.5M |
| Balyasny Asset Management L.P. | 0.50% | Add +7782.3% | 550,736 | $190.5M |
| Assenagon Asset Management S.A. | 0.39% | Add +29.6% | 545,210 | $188.6M |
| Fiera Capital Corp | 0.50% | Reduce -8.6% | 484,561 | $167.7M |
| Sumitomo Mitsui Trust Group, Inc. | 0.11% | Add +0.2% | 454,533 | $157.3M |
| National Pension Service | 0.13% | Add +6.5% | 394,556 | $136.5M |
| Envestnet Asset Management Inc. | 0.04% | Add +4.5% | 375,150 | $129.8M |
| Rhumbline Advisers | 0.12% | Reduce -2.5% | 374,804 | $129.7M |
| Fiducient Advisors LLC | 14.96% | Add +0.5% | 374,391 | $129.5M |
| Douglass Winthrop Advisors, LLC | 2.46% | Add +1.5% | 372,419 | $128.9M |
| Voya Investment Management LLC | 0.15% | Add +268.0% | 356,387 | $123.3M |
| Royal Bank of Canada | 0.03% | Reduce -12.4% | 345,193 | $119.4M |
| Haverford Trust Co | 1.14% | Add +0.3% | 337,040 | $116.6M |
| Deutsche Bank AG | 0.05% | Add +8.2% | 336,672 | $116.5M |
| California State Teachers Retirement System | 0.13% | Reduce -1.2% | 322,109 | $111.4M |
| Woodline Partners LP | 0.91% | Add +173.8% | 309,754 | $107.2M |
| NorthCoast Asset Management LLC | 0.72% | Reduce -10.4% | 301,514 | $102.5M |
| Wells Fargo & Company | 0.02% | Reduce -1.9% | 295,619 | $102.3M |
| BloombergSen Inc. | 8.59% | No change | 294,606 | $101.9M |
| Millennium Management | 0.09% | Add +22.5% | 293,590 | $101.6M |
| Natixis Advisors, LLC | 0.19% | Reduce -5.0% | 287,451 | $99.5M |
| Wealthspire Advisors, LLC | 0.99% | Reduce -7.1% | 282,579 | $97.8M |
| DAVENPORT & Co LLC | 0.57% | Reduce -1.1% | 280,947 | $97.3M |
| New York State Common Retirement Fund | 0.13% | Reduce -7.9% | 279,948 | $96.9M |
| DekaBank Deutsche Girozentrale | 0.18% | Add +14.6% | 275,444 | $95.2M |
| Voloridge Investment Management, LLC | 0.33% | Add +78.8% | 264,773 | $91.6M |
| Russell Investments Group, Ltd. | 0.13% | Reduce -20.9% | 263,476 | $91.2M |
| Bowie Capital Management, LLC | 5.14% | Add +0.3% | 263,381 | $91.1M |
| Prana Capital Management, LP | 4.17% | Reduce -13.8% | 262,934 | $91.0M |
| Weitz Investment Management, Inc. | 4.45% | No change | 260,950 | $90.3M |
| Principal Financial Group Inc. | 0.05% | Reduce -71.4% | 254,481 | $88.0M |
| Scharf Investments, LLC | 2.39% | Add +4.3% | 250,739 | $86.8M |
| Altrinsic Global Advisors LLC | 3.64% | Reduce -3.3% | 247,546 | $85.6M |
| Sei Investments Co. | 0.11% | Add +1.5% | 238,813 | $82.6M |
| Lord, Abbett & Co. LLC | 0.26% | New | 229,458 | $79.4M |
| Nicholas Company, Inc. | 1.29% | Add +0.0% | 228,305 | $79.0M |
| Alliancebernstein L.P. | 0.03% | Reduce -1.2% | 220,408 | $76.3M |
| Raymond James & Associates | 0.05% | Add +6.3% | 215,322 | $74.5M |
| Aviva PLC | 0.19% | Reduce -16.0% | 214,910 | $74.4M |
| Bain Capital Public Equity Management II, LLC | 3.32% | New | 211,172 | $73.1M |
| Ensign Peak Advisors, Inc | 0.13% | Reduce -3.4% | 208,754 | $72.2M |
| Capital Group Private Client Services, Inc. | 0.66% | Reduce -16.3% | 201,667 | $69.8M |
| Verition Fund Management LLC | 0.50% | Reduce -7.0% | 190,081 | $65.8M |
"% of holder's portfolio" is AON's weight in each manager's 13F, not the share of Aon PLC Class A the manager owns.