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AON (AON) Institutional Ownership

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$354.90 +2.97 (+0.84%)
As of 08/21/2026 03:58 PM Eastern
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Institutional Ownership Changes (13F Filings) for AON (NYSE:AON)

Current
Institutional Ownership
Percentage
86.14%
Number of
Institutional Buyers
(last 12 months)
702
Total
Institutional Inflows
(last 12 months)
$9.73B
Number of
Institutional Sellers
(last 12 months)
499
Total
Institutional Outflows
(last 12 months)
$7.05B
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AON Institutional Buying and Selling by Quarter

AON Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/23/2026 Saudi Central Bank14,248$4.73M0.1%+89.0%0.007%
8/23/2026 Unique Wealth LLC940$312K0.0%-24.8%0.000%
8/22/2026 AlphaGrep UK Ltd1,007$334K0.1%N/A0.000%
8/22/2026 Old Mission Investment Co LLC905$300K0.1%N/A0.000%
8/22/2026 Sapient Capital LLC748$248K0.0%-13.5%0.000%
8/22/2026 TD Waterhouse Canada Inc.8,718$3.00M0.0%+9.1%0.004%
8/22/2026 Kampmann Melissa S.3,900$1.29M1.0%-47.0%0.002%
8/22/2026 Concurrent Investment Advisors LLC5,805$1.93M0.0%+13.5%0.003%
8/22/2026 NEOS Investment Management LLC34,465$11.43M0.0%+12.8%0.016%
8/21/2026 AXQ Capital LP815$270K0.0%N/A0.000%
8/21/2026 Greenspring Advisors LLC2,458$815K0.0%+10.1%0.001%
8/21/2026 Live Oak Private Wealth LLC21,499$7.13M0.9%-6.3%0.010%
8/21/2026 Natural Investments LLC731$242K0.1%+8.8%0.000%
8/21/2026 Ironvine Capital Partners LLC119,841$39.75M3.5%+11.3%0.056%
8/21/2026 Legacy Financial Advisors Inc.1,904$632K0.1%+46.5%0.001%
8/20/2026 Proficio Capital Partners LLC1,680$557K0.0%N/A0.001%
8/20/2026 Clifford Swan Investment Counsel LLC28,607$9.49M0.3%+5.7%0.013%
8/20/2026 CTC Alternative Strategies Ltd.1,400$464K0.7%N/A0.001%
8/20/2026 Quantitative Investment Management LLC5,174$1.72M0.2%-37.0%0.002%
8/20/2026 Wedbush Securities Inc.873$290K0.0%-31.7%0.000%
8/19/2026 New Mexico Educational Retirement Board10,645$3.53M0.1%+7.0%0.005%
8/19/2026 Wellington Management Group LLP106,370$35.28M0.0%+16.4%0.050%
8/18/2026 Public Employees Retirement System of Ohio79,272$26.29M0.1%N/A0.037%
8/14/2026 Ancora Advisors LLC6,282$2.08M0.0%+3.8%0.003%
8/13/2026 Ally Financial Inc.3,000$995K0.1%N/A0.001%
8/7/2026 Commerzbank Aktiengesellschaft FI2,171$720K0.0%N/A0.001%
8/7/2026 Trust Co. of Vermont267$89K0.0%N/A0.000%
8/7/2026 Plato Investment Management Ltd4,832$1.59M0.1%N/A0.002%
8/6/2026 Stoneridge Investment Partners LLC1,717$619K0.4%N/A0.001%
7/10/2026 Handelsbanken Fonder AB68,206$22.62M0.1%+1.9%0.032%
7/10/2026 Salvus Wealth Management LLC4,935$1.64M0.9%-26.5%0.002%
7/9/2026 Revolve Wealth Partners LLC1,159$384K0.0%N/A0.001%
7/9/2026 Sapient Capital LLC748$248K0.0%-13.5%0.000%
7/9/2026 Legacy Wealth Asset Management LLC7,524$2.50M0.5%+0.7%0.004%
7/9/2026 HF Advisory Group LLC3,638$1.21M0.4%+392.3%0.002%
7/9/2026 Valeo Financial Advisors LLC1,151$382K0.0%+25.2%0.001%
7/8/2026 Kwmg LLC21,084$6.99M0.5%+3.3%0.010%
7/8/2026 Abner Herrman & Brock LLC51,218$16.99M1.6%-4.5%0.024%
7/8/2026 LifeGoal Investments LLC890$295K0.1%N/A0.000%
7/8/2026 Meriwether Wealth & Planning LLC1,501$498K0.2%-8.0%0.001%
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7/8/2026 Elevation Wealth Partners LLC221$73K0.0%+35.6%0.000%
7/8/2026 Czech National Bank60,792$20.16M0.1%+4.1%0.028%
7/8/2026 Assenagon Asset Management S.A.188,821$62.63M0.1%+2,197.1%0.088%
7/7/2026 Fermata Advisors LLC646$214K0.0%N/A0.000%
7/7/2026 GAMMA Investing LLC1,847$613K0.0%+20.2%0.001%
7/7/2026 Arlington Partners LLC887$294K0.5%+21.5%0.000%
7/7/2026 Harbor Investment Advisory LLC99$33K0.0%-41.4%0.000%
7/7/2026 Canandaigua National Bank & Trust Co.3,540$1.17M0.1%N/A0.002%
7/7/2026 Carderock Capital Management Inc.23,559$7.81M1.7%+9.1%0.011%
7/7/2026 Flower City Capital613$203K0.1%N/A0.000%
7/7/2026 Grove Bank & Trust164$54K0.0%-85.9%0.000%
7/7/2026 Pacific Excel Wealth Advisors Inc.640$212K0.1%N/A0.000%
7/7/2026 Anderson Hoagland & Co.10,927$3.62M0.3%+10.4%0.005%
7/6/2026 RDA Financial Network1,451$481K0.1%+2.9%0.001%
7/2/2026 MassMutual Private Wealth & Trust FSB650$216K0.0%+5.3%0.000%
7/2/2026 Versant Capital Management Inc763$253K0.0%+7.9%0.000%
7/2/2026 Hilltop National Bank525$174K0.0%-11.2%0.000%
7/2/2026 CX Institutional1,765$585K0.0%-57.3%0.001%
7/1/2026 Eastern Bank224$74K0.0%-16.7%0.000%
6/24/2026 Basecamp Wealth Advisors LLC235$76K0.0%+25.0%0.000%
6/22/2026 Sapient Capital LLC865$279K0.0%N/A0.000%
6/18/2026 Pacer Advisors Inc.13,647$4.41M0.0%-30.0%0.006%
6/16/2026 Empowered Funds LLC22,496$7.26M0.0%+20.9%0.011%
6/8/2026 Pine Valley Investments Ltd Liability Co9,855$3.18M0.1%-37.7%0.005%
6/3/2026 Parallel Advisors LLC2,081$672K0.0%+6.0%0.001%
6/3/2026 NewEdge Advisors LLC6,664$2.15M0.0%-50.5%0.003%
6/1/2026 Caerus Investment Advisors LLC886$286K0.1%N/A0.000%
6/1/2026 Financial Solutions Advisory Group Inc.812$262K0.0%N/A0.000%
6/1/2026 Keel Point LLC737$238K0.0%-20.7%0.000%
5/29/2026 Asset Dedication LLC409$132K0.0%-39.9%0.000%
5/28/2026 Carlson Capital L.P.1,100$355K0.1%+83.3%0.001%
5/26/2026 Glenmede Trust Co. NA56,358$18.19M0.1%+16.3%0.026%
5/26/2026 Axiom Investment Management LLC603$195K0.1%N/A0.000%
5/22/2026 Segall Bryant & Hamill LLC26,272$8.33M0.1%N/A0.012%
5/21/2026 Essential Partners LLC771$249K0.1%+235.2%0.000%
5/21/2026 Vestor Capital LLC1,759$568K0.0%-92.5%0.001%
5/19/2026 Bank of America Corp DE1,582,680$510.86M0.0%+16.3%0.741%
5/19/2026Janus Henderson Group PLC26,747$8.64M0.0%+9.8%0.013%
5/19/2026 Bull Harbor Capital LLC1,915$618K0.2%N/A0.001%
5/19/2026 Ashton Thomas Securities LLC6,030$1.95M0.2%N/A0.003%
5/19/2026 Arkadios Wealth Advisors4,334$1.40M0.0%+2.2%0.002%
5/18/2026 Amundi1,502,890$485.10M0.1%+23.5%0.704%
5/18/2026 EverSource Wealth Advisors LLC2,638$851K0.0%+66.5%0.001%
5/18/2026California State Teachers Retirement System308,973$99.73M0.1%-2.9%0.145%
5/18/2026 Royal Bank of Canada688,130$222.12M0.0%-28.4%0.322%
5/18/2026 Empowered Funds LLC22,496$7.26M0.0%+20.9%0.011%
5/16/2026 The Manufacturers Life Insurance Company547,850$176.84M0.2%+136.1%0.257%
5/16/2026 KCM Investment Advisors LLC651$210K0.0%+6.2%0.000%
5/16/2026 Quantinno Capital Management LP225,807$72.89M0.1%+94.1%0.106%
5/16/2026 Southpoint Capital Advisors LP500,000$161.39M3.3%-23.1%0.234%
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5/16/2026 Lazard Asset Management LLC1,217,243$392.90M0.6%-5.4%0.570%
5/15/2026 Gateway Wealth Partners LLC900$291K0.0%N/A0.000%
5/15/2026 Quadcap Wealth Management LLC726$234K0.0%+10.3%0.000%
5/15/2026 Lombard Odier Asset Management Switzerland SA6,713$2.17M0.1%N/A0.003%
5/15/2026 Waverly Advisors LLC22,073$7.13M0.1%+872.8%0.010%
5/15/2026 Entropy Technologies LP13,833$4.47M0.2%-64.2%0.006%
5/15/2026 Bridgewater Advisors Inc.21,857$6.79M0.4%N/A0.010%
5/15/2026 Boreal Capital Management LLC211$68K0.1%-49.9%0.000%
5/15/2026 Cannell & Spears LLC109,911$35.62M0.7%-0.8%0.051%
5/14/2026 Healthcare of Ontario Pension Plan Trust Fund159,373$51.44M0.1%+284.1%0.075%


AON Institutional Ownership - Frequently Asked Questions

During the previous two years, 1,318 institutional investors and hedge funds held shares of AON. The most heavily invested institutionals were Vanguard Group Inc. ($7.12B), Capital World Investors ($4.32B), State Street Corp ($3.25B), Massachusetts Financial Services Co. MA ($3.02B), Dodge & Cox ($2.77B), Morgan Stanley ($1.97B), and Geode Capital Management LLC ($1.81B).Learn more on AON's institutional investors.

86.14% of AON's stock is owned by institutional investors. Learn more on AON's institutional investor holdings.

Of the 1,128 institutional investors that purchased AON's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Dodge & Cox ($7.85M), Norges Bank ($7.05M), Polen Capital Management LLC ($2.29M), Bank of New York Mellon Corp ($1.49M), Viking Global Investors LP ($1.41M), Diamond Hill Capital Management Inc. ($1.28M), and Nuveen LLC ($1.27M).

Institutional investors have bought a total of 27,670,953 shares in the last 24 months. This purchase volume represents approximately $9.73B in transactions.

Of the 499 institutional investors that sold AON's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Mawer Investment Management Ltd. ($1.49M), Artisan Partners Limited Partnership ($1.06M), Mitsubishi UFJ Asset Management Co. Ltd. ($894.02K), Wellington Management Group LLP ($668.53K), Polen Capital Management LLC ($643.87K), Lazard Asset Management LLC ($631.30K), and Viking Global Investors LP ($630.97K).

Institutional investors have sold a total of 20,033,613 shares in the last 24 months. This volume of shares sold represents approximately $7.05B in transactions.


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Institutional ownership data for NYSE:AON is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/23/2026. New 13F filings are added each quarter as they're published.
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