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 2021
Institutional positions in Aon plc as of Jun 30, 2021. 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
- 912
- +4 vs. Q1 2021
- Shares held
- 223.7M
- +1.23M (+0.6%) vs. Q1 2021
- Total value
- $53.4B
- +$2.24B (+4.4%) vs. Q1 2021
- New holders
- 82
- 353 more added
- Sold out
- 78
- 289 more reduced
11 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massachusetts Financial Services Co | 19,474,366 | $4.65B | 1.35% | −192,304−1.0% | Reduced |
| Vanguard Group Inc | 16,956,025 | $4.05B | 0.10% | −483,592−2.8% | Reduced |
| BlackRock Inc. | 16,543,059 | $3.95B | 0.11% | −524,399−3.1% | Reduced |
| State Street Corp | 9,338,406 | $2.23B | 0.12% | +58,087+0.6% | Added |
| Capital International Investors | 7,807,606 | $1.87B | 0.43% | −1,030,821−11.7% | Reduced |
| Eagle Capital Management LLC | 6,560,400 | $1.57B | 4.47% | −39,076−0.6% | Reduced |
| Mawer Investment Management Ltd. | 6,050,712 | $1.44B | 7.15% | +213,878+3.7% | Added |
| Lazard Asset Management LLC | 6,039,821 | $1.44B | 1.62% | +100,230+1.7% | Added |
| WCM Investment Management, LLC | 4,619,723 | $1.10B | 2.80% | +63,616+1.4% | Added |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 4,396,000 | $1.05B | 0.36% | +299,854+7.3% | Added |
| Janus Henderson Group PLC | 4,034,958 | $963.3M | 0.41% | −791,722−16.4% | Reduced |
| Geode Capital Management, LLC | 3,947,152 | $939.8M | 0.13% | +360,705+10.1% | Added |
| Neuberger Berman Group LLC | 3,834,426 | $914.7M | 0.80% | −180,253−4.5% | Reduced |
| Longview Partners (Guernsey) LTD | 3,476,946 | $830.2M | 4.56% | −179,705−4.9% | Reduced |
| Independent Franchise Partners LLP | 3,398,853 | $811.5M | 6.05% | +8,592+0.3% | Added |
| Capital World Investors | 2,991,193 | $714.2M | 0.12% | +1,057,909+54.7% | Added |
| Bank of America Corp | 2,959,725 | $706.7M | 0.08% | +81,156+2.8% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 2,903,054 | $693.1M | 2.10% | +748,565+34.7% | Added |
| Mackenzie Financial Corp | 2,837,378 | $677.5M | 0.94% | +462,746+19.5% | Added |
| Northern Trust Corp | 2,819,850 | $673.3M | 0.12% | −53,360−1.9% | Reduced |
| Farallon Capital Management, L.L.C. | 2,642,614 | $631.0M | 3.04% | +188,420+7.7% | Added |
| EdgePoint Investment Group Inc. | 2,413,627 | $576.3M | 4.38% | +66,025+2.8% | Added |
| Wellington Management Group LLP | 2,331,961 | $556.8M | 0.09% | +2,330,528+162,632.8% | Added |
| Bank of New York Mellon Corp | 2,209,621 | $527.6M | 0.10% | +489,876+28.5% | Added |
| BlueSpruce Investments, LP | 2,046,862 | $488.7M | 8.91% | +288,342+16.4% | Added |
| Artisan Partners Limited Partnership | 1,892,000 | $451.7M | 0.54% | −499,795−20.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,849,660 | $441.6M | 0.54% | +395,603+27.2% | Added |
| Invesco Ltd. | 1,817,477 | $433.9M | 0.11% | +60,422+3.4% | Added |
| California Public Employees Retirement System | 1,728,910 | $412.8M | 0.31% | −29,925−1.7% | Reduced |
| Goldman Sachs Group Inc | 1,702,732 | $406.5M | 0.11% | +88,041+5.5% | Added |
| Legal & General Group Plc | 1,548,896 | $369.8M | 0.12% | +44,799+3.0% | Added |
| Renaissance Technologies LLC | 1,545,101 | $368.9M | 0.46% | +443,823+40.3% | Added |
| Royal Bank of Canada | 1,526,503 | $364.5M | 0.10% | −68,169−4.3% | Reduced |
| Ameriprise Financial Inc | 1,427,178 | $340.7M | 0.11% | −51,785−3.5% | Reduced |
| UBS Asset Management Americas Inc | 1,401,324 | $334.6M | 0.14% | −60,132−4.1% | Reduced |
| Cantillon Capital Management LLC | 1,316,431 | $314.3M | 2.12% | −20,543−1.5% | Reduced |
| GQG Partners LLC | 1,271,299 | $303.5M | 0.89% | +26,982+2.2% | Added |
| Price T Rowe Associates Inc | 1,259,334 | $300.7M | 0.03% | −96,434−7.1% | Reduced |
| Brave Warrior Advisors, LLC | 1,250,429 | $298.6M | 10.25% | −278,720−18.2% | Reduced |
| Dimensional Fund Advisors LP | 1,182,254 | $282.3M | 0.09% | +109,742+10.2% | Added |
| First Pacific Advisors, LP | 1,177,528 | $281.1M | 3.53% | −2,317−0.2% | Reduced |
| Altrinsic Global Advisors LLC | 1,121,473 | $267.8M | 8.14% | −188,774−14.4% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,086,465 | $259.5M | 0.43% | −45,850−4.0% | Reduced |
| Principal Financial Group Inc | 1,042,341 | $248.9M | 0.16% | −716,622−40.7% | Reduced |
| Charles Schwab Investment Management Inc | 1,021,867 | $244.0M | 0.08% | +20,390+2.0% | Added |
| Boston Partners | 953,222 | $227.6M | 0.29% | +22,461+2.4% | Added |
| Swiss National Bank | 921,474 | $220.0M | 0.14% | −60,575−6.2% | Reduced |
| Morgan Stanley | 872,529 | $208.3M | 0.03% | +293,745+50.8% | Added |
| New York State Common Retirement Fund | 866,132 | $206.8M | 0.21% | +44,944+5.5% | Added |
| Vaughan Nelson Investment Management, L.P. | 857,201 | $204.7M | 2.07% | +105,865+14.1% | Added |
| Meritage Group LP | 841,972 | $201.0M | 3.77% | +5,866+0.7% | Added |
| FMR LLC | 833,937 | $199.1M | 0.02% | −583,890−41.2% | Reduced |
| Bessemer Group Inc | 830,565 | $198.3M | 0.43% | +6,625+0.8% | Added |
| Polen Capital Management LLC | 812,647 | $194.0M | 0.37% | +286,463+54.4% | Added |
| Deutsche Bank AG | 791,115 | $188.9M | 0.09% | +42,374+5.7% | Added |
| Macquarie Group Ltd | 778,196 | $185.8M | 0.15% | +772,450+13,443.3% | Added |
| Tesco Pension Investment Ltd | 769,833 | $183.8M | 3.25% | −34,628−4.3% | Reduced |
| Southpoint Capital Advisors LP | 750,000 | $179.1M | 3.10% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 736,001 | $175.7M | 0.10% | +26,754+3.8% | Added |
| DSM Capital Partners LLC | 721,146 | $172.2M | 1.66% | −43,359−5.7% | Reduced |
| Ensign Peak Advisors, Inc | 712,256 | $170.1M | 0.34% | −4,367−0.6% | Reduced |
| First Trust Advisors LP | 710,583 | $169.7M | 0.18% | +25,594+3.7% | Added |
| JPMorgan Chase & Co | 664,106 | $158.6M | 0.02% | −53,153−7.4% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 653,033 | $155.9M | 0.50% | −40,977−5.9% | Reduced |
| Credit Suisse AG | 620,683 | $150.8M | 0.12% | −4,886−0.8% | Reduced |
| Blair William & Co | 607,410 | $145.0M | 0.50% | +52,706+9.5% | Added |
| Pensioenfonds Rail & Ov | 585,712 | $139.8M | 3.05% | 00.0% | Unchanged |
| Millennium Management LLC | 567,563 | $135.5M | 0.17% | +77,604+15.8% | Added |
| D. E. Shaw & Co., Inc. | 552,041 | $131.8M | 0.15% | +543,069+6,052.9% | Added |
| Kovitz Investment Group Partners, LLC | 551,137 | $131.6M | 2.61% | +81,657+17.4% | Added |
| Capital Bank & Trust Co | 548,001 | $130.8M | 1.52% | +10,944+2.0% | Added |
| Broad Run Investment Management, LLC | 531,655 | $126.9M | 7.94% | −9,890−1.8% | Reduced |
| Frontier Capital Management Co LLC | 521,656 | $124.6M | 0.91% | +30,882+6.3% | Added |
| USS Investment Management Ltd | 517,104 | $123.4M | 1.00% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 508,277 | $121.4M | 0.11% | +223,173+78.3% | Added |
| BloombergSen Inc. | 498,473 | $119.0M | 8.13% | −74,100−12.9% | Reduced |
| Two Sigma Investments, LP | 459,914 | $109.8M | 0.29% | −596,504−56.5% | Reduced |
| Natixis Advisors, L.P. | 452,015 | $107.9M | 0.51% | +39,103+9.5% | Added |
| State of Wisconsin Investment Board | 449,123 | $107.2M | 0.22% | −176,214−28.2% | Reduced |
| APG Asset Management N.V. | 519,504 | $104.6M | 0.18% | +17,000+3.4% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 422,850 | $101.0M | 4.26% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 420,518 | $100.4M | 0.17% | +30,187+7.7% | Added |
| Bank of Montreal | 405,745 | $98.7M | 0.05% | +107,501+36.0% | Added |
| Pentwater Capital Management LP | 401,388 | $95.8M | 0.98% | +401,388 | New |
| Polar Capital Holdings Plc | 397,500 | $94.9M | 0.52% | 00.0% | Unchanged |
| Citadel Advisors LLC | 392,468 | $93.7M | 0.10% | +33,629+9.4% | Added |
| Swedbank AB | 391,419 | $93.5M | 0.18% | −58,949−13.1% | Reduced |
| Capital International Inc | 388,416 | $92.7M | 0.83% | −13,162−3.3% | Reduced |
| Wells Fargo & Company | 387,314 | $92.5M | 0.02% | −37,264−8.8% | Reduced |
| Davenport & Co LLC | 358,517 | $85.6M | 0.66% | +21,911+6.5% | Added |
| Marshall Wace, LLP | 351,794 | $84.0M | 0.44% | +6,895+2.0% | Added |
| Atlanta Capital Management Co L L C | 346,401 | $82.7M | 0.29% | −8,334−2.3% | Reduced |
| Rhumbline Advisers | 345,766 | $82.6M | 0.11% | −22,280−6.1% | Reduced |
| California State Teachers Retirement System | 345,337 | $82.5M | 0.10% | −27,790−7.4% | Reduced |
| Citigroup Inc | 340,868 | $81.4M | 0.07% | −188,053−35.6% | Reduced |
| Two Sigma Advisers, LP | 337,400 | $80.6M | 0.21% | −373,900−52.6% | Reduced |
| Douglass Winthrop Advisors, LLC | 328,762 | $78.5M | 1.93% | +14,898+4.7% | Added |
| Worldquant Millennium Advisors LLC | 325,483 | $77.7M | 1.72% | +305,544+1,532.4% | Added |
| Alliancebernstein L.P. | 302,322 | $72.2M | 0.03% | −55,454−15.5% | Reduced |
| Norges Bank | 302,097 | $72.1M | 0.02% | −80,470−21.0% | Reduced |