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, Q2 2025
Institutional positions in Aon plc as of Jun 30, 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
- 1,233
- −27 vs. Q1 2025
- Shares held
- 194.2M
- +975.4K (+0.5%) vs. Q1 2025
- Total value
- $69.3B
- −$7.65B (−9.9%) vs. Q1 2025
- New holders
- 108
- 432 more added
- Sold out
- 135
- 470 more reduced
16 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AMF Pensionsforsakring AB | 126,792 | $45.3M | 0.30% | +70,333+124.6% | Added |
| Citadel Advisors LLC | 129,484 | $46.2M | 0.04% | −153,215−54.2% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 129,800 | $46.3M | 0.39% | +350+0.3% | Added |
| Jupiter Asset Management Ltd | 131,483 | $46.9M | 0.39% | +68,698+109.4% | Added |
| State of Tennessee, Treasury Department | 132,058 | $47.1M | 0.17% | +14,440+12.3% | Added |
| HM Payson & Co | 133,506 | $47.6M | 0.75% | +3,850+3.0% | Added |
| Ceredex Value Advisors LLC | 136,113 | $48.6M | 1.04% | +10,954+8.8% | Added |
| Storebrand Asset Management AS | 143,907 | $51.3M | 0.15% | +918+0.6% | Added |
| Stifel Financial Corp | 144,314 | $51.5M | 0.05% | +227+0.2% | Added |
| Ycg, LLC | 146,192 | $52.2M | 4.03% | −1,824−1.2% | Reduced |
| Standard Life Aberdeen plc | 152,186 | $54.3M | 0.09% | +8,050+5.6% | Added |
| New York State Teachers Retirement System | 156,380 | $55.8M | 0.12% | −88−0.1% | Reduced |
| Gluskin Sheff & Assoc Inc | 157,386 | $56.1M | 6.85% | +23,443+17.5% | Added |
| Janus Henderson Group PLC | 158,617 | $56.6M | 0.03% | +133,559+533.0% | Added |
| GFI Investment Counsel Ltd. | 166,610 | $59.4M | 6.48% | +3,274+2.0% | Added |
| HSBC Holdings PLC | 168,759 | $60.1M | 0.04% | +16,367+10.7% | Added |
| D. E. Shaw & Co., Inc. | 172,969 | $61.7M | 0.06% | +91,041+111.1% | Added |
| Assenagon Asset Management S.A. | 173,607 | $61.9M | 0.10% | −320,087−64.8% | Reduced |
| Nomura Asset Management Co Ltd | 174,704 | $62.3M | 0.17% | +760+0.4% | Added |
| CapitalatWork S.A. | 178,725 | $63.8M | 1.94% | +23,139+14.9% | Added |
| Capital Group Private Client Services, Inc. | 179,192 | $63.9M | 0.55% | −6,052−3.3% | Reduced |
| CIBC Asset Management Inc | 179,589 | $64.0M | 0.20% | +3,516+2.0% | Added |
| Nicholas Company, Inc. | 181,427 | $64.7M | 1.08% | −16,360−8.3% | Reduced |
| Frontier Capital Management Co LLC | 186,844 | $66.7M | 0.62% | +7,872+4.4% | Added |
| State Board of Administration of Florida Retirement System | 189,622 | $67.6M | 0.12% | +2,290+1.2% | Added |
| Citigroup Inc | 196,664 | $70.2M | 0.05% | −39,853−16.8% | Reduced |
| Canada Pension Plan Investment Board | 196,911 | $70.2M | 0.06% | +161,887+462.2% | Added |
| Moore Capital Management, LP | 201,024 | $71.7M | 1.43% | +168,645+520.8% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 213,450 | $76.2M | 4.09% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 224,782 | $80.2M | 0.11% | −480−0.2% | Reduced |
| National Bank of Canada | 229,203 | $81.7M | 0.09% | +17,414+8.2% | Added |
| Scharf Investments, LLC | 229,454 | $81.9M | 2.36% | −1,003−0.4% | Reduced |
| Cryder Capital Partners LLP | 231,314 | $82.5M | 4.65% | +231,314 | New |
| Wealthspire Advisors, LLC | 233,162 | $83.2M | 0.47% | −54,970−19.1% | Reduced |
| Ensign Peak Advisors, Inc | 239,326 | $85.4M | 0.15% | −20,192−7.8% | Reduced |
| Marshall Wace, LLP | 241,619 | $86.2M | 0.10% | +211,188+694.0% | Added |
| Lord, Abbett & Co. LLC | 245,439 | $87.6M | 0.28% | +2,724+1.1% | Added |
| Bristol John W & Co Inc | 249,542 | $89.0M | 1.44% | +249,542 | New |
| Raymond James Financial Inc | 252,030 | $89.9M | 0.03% | −20,042−7.4% | Reduced |
| Verition Fund Management LLC | 253,876 | $90.6M | 0.52% | +9,803+4.0% | Added |
| Natixis Advisors, L.P. | 253,905 | $90.6M | 0.14% | −32,607−11.4% | Reduced |
| Principal Financial Group Inc | 261,332 | $93.2M | 0.05% | −4,130−1.6% | Reduced |
| DekaBank Deutsche Girozentrale | 275,444 | $97.0M | 0.17% | +335+0.1% | Added |
| Bowie Capital Management, LLC | 272,441 | $97.2M | 4.60% | +40,570+17.5% | Added |
| Davenport & Co LLC | 276,125 | $98.2M | 0.54% | −80.0% | Reduced |
| BloombergSen Inc. | 286,027 | $102.0M | 8.62% | −3,498−1.2% | Reduced |
| T. Rowe Price Investment Management, Inc. | 287,915 | $102.7M | 0.06% | +3,504+1.2% | Added |
| Russell Investments Group, Ltd. | 291,660 | $104.0M | 0.13% | +3,354+1.2% | Added |
| Alliancebernstein L.P. | 292,210 | $104.2M | 0.03% | +76,061+35.2% | Added |
| BNP Paribas Arbitrage, SA | 295,551 | $105.4M | 0.08% | −72,740−19.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 302,269 | $107.8M | 0.18% | +131,300+76.8% | Added |
| Manufacturers Life Insurance Company, The | 311,314 | $111.1M | 0.10% | +182,659+142.0% | Added |
| Aviva PLC | 311,540 | $111.1M | 0.23% | +61,888+24.8% | Added |
| California State Teachers Retirement System | 312,618 | $111.5M | 0.12% | +2,806+0.9% | Added |
| Kovitz Investment Group Partners, LLC | 316,001 | $112.7M | 0.48% | −11,322−3.5% | Reduced |
| Bank of Montreal | 323,682 | $115.5M | 0.06% | −46,509−12.6% | Reduced |
| New York State Common Retirement Fund | 333,116 | $118.8M | 0.16% | +13,338+4.2% | Added |
| Fiducient Advisors LLC | 338,200 | $120.7M | 14.77% | −86,665−20.4% | Reduced |
| Alyeska Investment Group, L.P. | 376,714 | $134.4M | 0.48% | +376,714 | New |
| Haverford Trust Co | 385,302 | $137.5M | 1.31% | −1,447−0.4% | Reduced |
| Rhumbline Advisers | 394,383 | $140.7M | 0.12% | +17,015+4.5% | Added |
| Douglass Winthrop Advisors, LLC | 397,087 | $141.7M | 2.56% | +29,387+8.0% | Added |
| SEI Investments Co | 404,969 | $144.5M | 0.17% | −14,132−3.4% | Reduced |
| Wells Fargo & Company | 406,896 | $145.2M | 0.03% | +4,165+1.0% | Added |
| Deutsche Bank AG | 410,381 | $146.4M | 0.05% | −60,314−12.8% | Reduced |
| Woodline Partners LP | 412,953 | $147.3M | 0.78% | +76,438+22.7% | Added |
| National Pension Service | 416,461 | $148.6M | 0.13% | +67,300+19.3% | Added |
| Envestnet Asset Management Inc | 428,491 | $152.9M | 0.04% | −32,669−7.1% | Reduced |
| Vontobel Holding Ltd. | 460,971 | $164.5M | 0.54% | +338,373+276.0% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 463,796 | $165.5M | 0.10% | +9,841+2.2% | Added |
| Prana Capital Management, LP | 517,507 | $184.6M | 6.69% | +264,893+104.9% | Added |
| Fiera Capital Corp | 521,804 | $186.2M | 0.63% | +68,409+15.1% | Added |
| First Trust Advisors LP | 552,605 | $197.1M | 0.16% | +35,234+6.8% | Added |
| Blair William & Co | 567,987 | $202.6M | 0.56% | +13,237+2.4% | Added |
| Swiss National Bank | 588,400 | $209.9M | 0.13% | +39,400+7.2% | Added |
| Omers Administration Corp | 601,417 | $214.6M | 1.69% | 00.0% | Unchanged |
| C WorldWide Group Holding A/S | 620,660 | $221.4M | 3.00% | −108,098−14.8% | Reduced |
| Price T Rowe Associates Inc | 621,576 | $221.8M | 0.03% | −40,020−6.0% | Reduced |
| Two Sigma Investments, LP | 629,555 | $224.6M | 0.40% | +624,321+11,928.2% | Added |
| USS Investment Management Ltd | 640,774 | $228.6M | 1.43% | +475+0.1% | Added |
| Royal Bank of Canada | 649,827 | $231.8M | 0.05% | −21,852−3.3% | Reduced |
| Barclays PLC | 650,846 | $232.2M | 0.09% | −228,083−26.0% | Reduced |
| First Pacific Advisors, LP | 652,019 | $232.6M | 3.33% | −27,993−4.1% | Reduced |
| Voya Investment Management LLC | 678,641 | $242.1M | 0.24% | −65,600−8.8% | Reduced |
| Mackenzie Financial Corp | 683,556 | $243.9M | 0.32% | −652,739−48.8% | Reduced |
| Altrinsic Global Advisors LLC | 692,633 | $247.1M | 8.95% | +456,399+193.2% | Added |
| Two Sigma Advisers, LP | 724,400 | $258.4M | 0.53% | +724,400 | New |
| California Public Employees Retirement System | 734,499 | $262.0M | 0.17% | −95,513−11.5% | Reduced |
| Dimensional Fund Advisors LP | 896,498 | $319.8M | 0.07% | +83,785+10.3% | Added |
| Amundi | 989,186 | $347.7M | 0.12% | +157,309+18.9% | Added |
| FIL Ltd | 991,656 | $353.8M | 0.30% | −82,549−7.7% | Reduced |
| Nuveen, LLC | 1,045,223 | $372.9M | 0.10% | −220,428−17.4% | Reduced |
| Ameriprise Financial Inc | 1,060,628 | $378.4M | 0.09% | +134,907+14.6% | Added |
| Wellington Management Group LLP | 1,113,733 | $397.3M | 0.07% | −115,649−9.4% | Reduced |
| UBS Group AG | 1,219,986 | $435.2M | 0.09% | −85,513−6.6% | Reduced |
| Cantillon Capital Management LLC | 1,247,354 | $445.0M | 2.57% | −36,194−2.8% | Reduced |
| Invesco Ltd. | 1,247,865 | $445.2M | 0.08% | +89,726+7.7% | Added |
| Goldman Sachs Group Inc | 1,258,909 | $449.1M | 0.07% | +134,609+12.0% | Added |
| Charles Schwab Investment Management Inc | 1,284,021 | $458.1M | 0.08% | +30,024+2.4% | Added |
| Legal & General Group Plc | 1,306,915 | $466.3M | 0.12% | −14,279−1.1% | Reduced |