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AON Insider Trading

Insider Ownership Percentage: 1.00%
Insider Buying (Last 12 Months): $7,826,560.00
Insider Selling (Last 12 Months): $3,301,223.10

AON Insider Trading History Chart

This chart shows the insider buying and selling history at AON by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

AON Share Price & Price History

Current Price: $322.57
Price Change: ▼ Price Decrease of -0.52 (-0.16%)
As of 09/4/2026 03:58 PM ET

This chart shows the closing price history over time for AON up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

AON Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
9/2/2026Lester B. KnightDirectorBuy20,000$327.48$6,549,600.00163,000View SEC Filing Icon  
7/28/2026Darren ZeidelGeneral CounselSell1,900$377.76$717,744.0011,504View SEC Filing Icon  
7/17/2026Darren ZeidelGeneral CounselSell1,950$372.05$725,497.5013,404View SEC Filing Icon  
7/7/2026Darren ZeidelGeneral CounselSell600$360.00$216,000.0015,354View SEC Filing Icon  
2/17/2026Darren ZeidelGeneral CounselSell5,040$325.79$1,641,981.6020,254View SEC Filing Icon  
2/10/2026Lester B. KnightDirectorBuy4,000$319.24$1,276,960.00143,000View SEC Filing Icon  
11/27/2024Mindy F. SimonCOOSell650$394.34$256,321.001,816View SEC Filing Icon  
11/26/2024Lisa StevensInsiderSell1,275$387.68$494,292.008,077View SEC Filing Icon  
5/3/2024Lester B. KnightDirectorBuy10,000$276.61$2,766,100.00139,000View SEC Filing Icon  
2/23/2024Lisa StevensInsiderSell13,000$315.26$4,098,380.0010,073View SEC Filing Icon  
2/16/2024Christa DaviesCFOSell40,164$313.29$12,582,979.56159,570View SEC Filing Icon  
2/15/2024Michael NellerInsiderSell750$312.00$234,000.003,869View SEC Filing Icon  
2/12/2024Christa DaviesCFOSell20,618$311.40$6,420,445.20159,570View SEC Filing Icon  
2/7/2024Lester B. KnightDirectorBuy50,000$301.97$15,098,500.00134,000View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for AON (NYSE:AON)

86.14% of AON stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at AON by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

AON Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/4/2026Parkside Financial Bank & Trust6,283$2.08M0.1%+38.8%0.003%Search for SEC Filing on Google Icon
8/27/2026Corient Private Wealth LP73,158$24.27M0.0%+80.0%0.034%Search for SEC Filing on Google Icon
8/25/2026Groupe la Francaise327$0.11M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/24/2026CYBER HORNET ETFs LLC29,470$9.78M3.3%+4,903.4%0.014%Search for SEC Filing on Google Icon
8/24/2026California State Teachers Retirement System101,761,829$33.75B0.1%+32,835.5%47.974%Search for SEC Filing on Google Icon
8/23/2026Greenland Capital Management LP3,650$1.21M0.2%-42.3%0.002%Search for SEC Filing on Google Icon
8/23/2026Ameritas Advisory Services LLC665$0.22M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/23/2026Wedmont Private Capital1,713$0.61M0.0%-2.2%0.001%Search for SEC Filing on Google Icon
8/23/2026HB Wealth Management LLC9,279$3.08M0.0%+23.6%0.004%Search for SEC Filing on Google Icon
8/23/2026Saudi Central Bank14,248$4.73M0.1%+89.0%0.007%Search for SEC Filing on Google Icon
8/23/2026Unique Wealth LLC940$0.31M0.0%-24.8%0.000%Search for SEC Filing on Google Icon
8/22/2026AlphaGrep UK Ltd1,007$0.33M0.1%N/A0.000%Search for SEC Filing on Google Icon
8/22/2026Old Mission Investment Co LLC905$0.30M0.1%N/A0.000%Search for SEC Filing on Google Icon
8/22/2026Sapient Capital LLC748$0.25M0.0%-13.5%0.000%Search for SEC Filing on Google Icon
8/22/2026TD Waterhouse Canada Inc.8,718$3M0.0%+9.1%0.004%Search for SEC Filing on Google Icon
8/22/2026Kampmann Melissa S.3,900$1.29M1.0%-47.0%0.002%Search for SEC Filing on Google Icon
8/22/2026Concurrent Investment Advisors LLC5,805$1.93M0.0%+13.5%0.003%Search for SEC Filing on Google Icon
8/22/2026NEOS Investment Management LLC34,465$11.43M0.0%+12.8%0.016%Search for SEC Filing on Google Icon
8/21/2026AXQ Capital LP815$0.27M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/21/2026Greenspring Advisors LLC2,458$0.82M0.0%+10.1%0.001%Search for SEC Filing on Google Icon
8/21/2026Live Oak Private Wealth LLC21,499$7.13M0.9%-6.3%0.010%Search for SEC Filing on Google Icon
8/21/2026Natural Investments LLC731$0.24M0.1%+8.8%0.000%Search for SEC Filing on Google Icon
8/21/2026Ironvine Capital Partners LLC119,841$39.75M3.5%+11.3%0.056%Search for SEC Filing on Google Icon
8/21/2026Legacy Financial Advisors Inc.1,904$0.63M0.1%+46.5%0.001%Search for SEC Filing on Google Icon
8/20/2026Proficio Capital Partners LLC1,680$0.56M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Clifford Swan Investment Counsel LLC28,607$9.49M0.3%+5.7%0.013%Search for SEC Filing on Google Icon
8/20/2026CTC Alternative Strategies Ltd.1,400$0.46M0.7%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Quantitative Investment Management LLC5,174$1.72M0.2%-37.0%0.002%Search for SEC Filing on Google Icon
8/20/2026Wedbush Securities Inc.873$0.29M0.0%-31.7%0.000%Search for SEC Filing on Google Icon
8/19/2026New Mexico Educational Retirement Board10,645$3.53M0.1%+7.0%0.005%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP106,370$35.28M0.0%+16.4%0.050%Search for SEC Filing on Google Icon
8/18/2026Public Employees Retirement System of Ohio79,272$26.29M0.1%N/A0.037%Search for SEC Filing on Google Icon
8/14/2026Ancora Advisors LLC6,282$2.08M0.0%+3.8%0.003%Search for SEC Filing on Google Icon
8/13/2026Ally Financial Inc.3,000$1M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/7/2026Commerzbank Aktiengesellschaft FI2,171$0.72M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/7/2026Trust Co. of Vermont267$89K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/7/2026Plato Investment Management Ltd4,832$1.59M0.1%N/A0.002%Search for SEC Filing on Google Icon
8/6/2026Stoneridge Investment Partners LLC1,717$0.62M0.4%N/A0.001%Search for SEC Filing on Google Icon
7/10/2026Handelsbanken Fonder AB68,206$22.62M0.1%+1.9%0.032%Search for SEC Filing on Google Icon
7/10/2026Salvus Wealth Management LLC4,935$1.64M0.9%-26.5%0.002%Search for SEC Filing on Google Icon
7/9/2026Revolve Wealth Partners LLC1,159$0.38M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/9/2026Sapient Capital LLC748$0.25M0.0%-13.5%0.000%Search for SEC Filing on Google Icon
7/9/2026Legacy Wealth Asset Management LLC7,524$2.50M0.5%+0.7%0.004%Search for SEC Filing on Google Icon
7/9/2026HF Advisory Group LLC3,638$1.21M0.4%+392.3%0.002%Search for SEC Filing on Google Icon
7/9/2026Valeo Financial Advisors LLC1,151$0.38M0.0%+25.2%0.001%Search for SEC Filing on Google Icon
7/8/2026Kwmg LLC21,084$6.99M0.5%+3.3%0.010%Search for SEC Filing on Google Icon
7/8/2026Abner Herrman & Brock LLC51,218$16.99M1.6%-4.5%0.024%Search for SEC Filing on Google Icon
7/8/2026LifeGoal Investments LLC890$0.30M0.1%N/A0.000%Search for SEC Filing on Google Icon
7/8/2026Meriwether Wealth & Planning LLC1,501$0.50M0.2%-8.0%0.001%Search for SEC Filing on Google Icon
7/8/2026Elevation Wealth Partners LLC221$73K0.0%+35.6%0.000%Search for SEC Filing on Google Icon
7/8/2026Czech National Bank60,792$20.16M0.1%+4.1%0.028%Search for SEC Filing on Google Icon
7/8/2026Assenagon Asset Management S.A.188,821$62.63M0.1%+2,197.1%0.088%Search for SEC Filing on Google Icon
7/7/2026Fermata Advisors LLC646$0.21M0.0%N/A0.000%Search for SEC Filing on Google Icon
7/7/2026GAMMA Investing LLC1,847$0.61M0.0%+20.2%0.001%Search for SEC Filing on Google Icon
7/7/2026Arlington Partners LLC887$0.29M0.5%+21.5%0.000%Search for SEC Filing on Google Icon
7/7/2026Harbor Investment Advisory LLC99$33K0.0%-41.4%0.000%Search for SEC Filing on Google Icon
7/7/2026Canandaigua National Bank & Trust Co.3,540$1.17M0.1%N/A0.002%Search for SEC Filing on Google Icon
7/7/2026Carderock Capital Management Inc.23,559$7.81M1.7%+9.1%0.011%Search for SEC Filing on Google Icon
7/7/2026Flower City Capital613$0.20M0.1%N/A0.000%Search for SEC Filing on Google Icon
7/7/2026Grove Bank & Trust164$54K0.0%-85.9%0.000%Search for SEC Filing on Google Icon
7/7/2026Pacific Excel Wealth Advisors Inc.640$0.21M0.1%N/A0.000%Search for SEC Filing on Google Icon
7/7/2026Anderson Hoagland & Co.10,927$3.62M0.3%+10.4%0.005%Search for SEC Filing on Google Icon
7/6/2026RDA Financial Network1,451$0.48M0.1%+2.9%0.001%Search for SEC Filing on Google Icon
7/2/2026MassMutual Private Wealth & Trust FSB650$0.22M0.0%+5.3%0.000%Search for SEC Filing on Google Icon
7/2/2026Versant Capital Management Inc763$0.25M0.0%+7.9%0.000%Search for SEC Filing on Google Icon
7/2/2026Hilltop National Bank525$0.17M0.0%-11.2%0.000%Search for SEC Filing on Google Icon
7/2/2026CX Institutional1,765$0.59M0.0%-57.3%0.001%Search for SEC Filing on Google Icon
7/1/2026Eastern Bank224$74K0.0%-16.7%0.000%Search for SEC Filing on Google Icon
6/24/2026Basecamp Wealth Advisors LLC235$76K0.0%+25.0%0.000%Search for SEC Filing on Google Icon
6/22/2026Sapient Capital LLC865$0.28M0.0%N/A0.000%Search for SEC Filing on Google Icon
6/18/2026Pacer Advisors Inc.13,647$4.41M0.0%-30.0%0.006%Search for SEC Filing on Google Icon
6/16/2026Empowered Funds LLC22,496$7.26M0.0%+20.9%0.011%Search for SEC Filing on Google Icon
6/8/2026Pine Valley Investments Ltd Liability Co9,855$3.18M0.1%-37.7%0.005%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC2,081$0.67M0.0%+6.0%0.001%Search for SEC Filing on Google Icon
6/3/2026NewEdge Advisors LLC6,664$2.15M0.0%-50.5%0.003%Search for SEC Filing on Google Icon
6/1/2026Caerus Investment Advisors LLC886$0.29M0.1%N/A0.000%Search for SEC Filing on Google Icon
6/1/2026Financial Solutions Advisory Group Inc.812$0.26M0.0%N/A0.000%Search for SEC Filing on Google Icon
6/1/2026Keel Point LLC737$0.24M0.0%-20.7%0.000%Search for SEC Filing on Google Icon
5/29/2026Asset Dedication LLC409$0.13M0.0%-39.9%0.000%Search for SEC Filing on Google Icon
5/28/2026Carlson Capital L.P.1,100$0.36M0.1%+83.3%0.001%Search for SEC Filing on Google Icon
5/26/2026Glenmede Trust Co. NA56,358$18.19M0.1%+16.3%0.026%Search for SEC Filing on Google Icon
5/26/2026Axiom Investment Management LLC603$0.20M0.1%N/A0.000%Search for SEC Filing on Google Icon
5/22/2026Segall Bryant & Hamill LLC26,272$8.33M0.1%N/A0.012%Search for SEC Filing on Google Icon
5/21/2026Essential Partners LLC771$0.25M0.1%+235.2%0.000%Search for SEC Filing on Google Icon
5/21/2026Vestor Capital LLC1,759$0.57M0.0%-92.5%0.001%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE1,582,680$510.86M0.0%+16.3%0.741%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC26,747$8.64M0.0%+9.8%0.013%Search for SEC Filing on Google Icon
5/19/2026Bull Harbor Capital LLC1,915$0.62M0.2%N/A0.001%Search for SEC Filing on Google Icon
5/19/2026Ashton Thomas Securities LLC6,030$1.95M0.2%N/A0.003%Search for SEC Filing on Google Icon
5/19/2026Arkadios Wealth Advisors4,334$1.40M0.0%+2.2%0.002%Search for SEC Filing on Google Icon
5/18/2026Amundi1,502,890$485.10M0.1%+23.5%0.704%Search for SEC Filing on Google Icon
5/18/2026EverSource Wealth Advisors LLC2,638$0.85M0.0%+66.5%0.001%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System308,973$99.73M0.1%-2.9%0.145%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada688,130$222.12M0.0%-28.4%0.322%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC22,496$7.26M0.0%+20.9%0.011%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company547,850$176.84M0.2%+136.1%0.257%Search for SEC Filing on Google Icon
5/16/2026KCM Investment Advisors LLC651$0.21M0.0%+6.2%0.000%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP225,807$72.89M0.1%+94.1%0.106%Search for SEC Filing on Google Icon
5/16/2026Southpoint Capital Advisors LP500,000$161.39M3.3%-23.1%0.234%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC1,217,243$392.90M0.6%-5.4%0.570%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
AON logo
Aon Plc engages in the provision of risk, health, and wealth solutions. It focuses on risk capital including claim management, reinsurance, risk analysis, management, retention, and transfer; and human capital involving analytics, health and benefits, investments, pensions and retirement, talent and rewards, and workplace wellbeing. The company was founded in 1982 and is headquartered in Dublin, Ireland.
Read More on AON

Today's Range

Now: $322.57
Low: $321.49
High: $328.84

50 Day Range

MA: $353.49
Low: $320.59
High: $381.65

52 Week Range

Now: $322.57
Low: $304.59
High: $382.34

Volume

1,453,289 shs

Average Volume

1,007,579 shs

Market Capitalization

$68.42 billion

P/E Ratio

17.78

Dividend Yield

1.02%

Beta

0.66

Who are the company insiders with the largest holdings of AON?

AON's top insider shareholders include:
  1. Gregory C Case (CEO)
  2. Gregory C Case (CEO)
  3. Christa Davies (CFO)
  4. Stephen P Mcgill (CEO)
  5. Lester B Knight (Director)
  6. Eric Andersen (President)
  7. Michael J O'connor (CEO)
  8. Gregory Besio (EVP)
  9. Eric Andersen (Insider)
  10. John G Bruno (COO)
Learn More about top insider investors at AON.

Who are the major institutional investors of AON?

AON's top institutional shareholders include:
  1. California State Teachers Retirement System — 47.97%
  2. Assenagon Asset Management S.A. — 0.09%
  3. Ironvine Capital Partners LLC — 0.06%
  4. Wellington Management Group LLP — 0.05%
  5. Public Employees Retirement System of Ohio — 0.04%
  6. Corient Private Wealth LP — 0.03%
Learn More about top institutional investors of AON stock.

Which institutional investors are selling AON stock?

In the last quarter, AON stock was sold by these institutional investors:
  1. Kampmann Melissa S.
  2. Quantitative Investment Management LLC
  3. Greenland Capital Management LP
  4. Abner Herrman & Brock LLC
  5. CX Institutional
  6. Salvus Wealth Management LLC
  7. Live Oak Private Wealth LLC
  8. Grove Bank & Trust

Which institutional investors are buying AON stock?

During the last quarter, AON stock was acquired by institutional investors including:
  1. California State Teachers Retirement System
  2. Assenagon Asset Management S.A.
  3. Public Employees Retirement System of Ohio
  4. Corient Private Wealth LP
  5. CYBER HORNET ETFs LLC
  6. Wellington Management Group LLP
  7. Ironvine Capital Partners LLC
  8. Saudi Central Bank

AON Active Insiders

Caroline Grace
Caroline Grace
CEO
Stephen P Mcgill
Stephen P Mcgill
CEO
John Zern
John Zern
CEO
Michael J O'connor
Michael J O'connor
CEO
Gregory C Case
Gregory C Case (Age 63)
CEO
Eric Andersen
Eric Andersen (Age 60)
President
John G Bruno
John G Bruno (Age 61)
COO
Mindy F Simon
Mindy F Simon
COO
Christa Davies
Christa Davies (Age 53)
CFO
Lester B Knight
Lester B Knight
Director
1 recent trades
J Michael Losh
J Michael Losh
Director
Byron Spruell
Byron Spruell
Director
Carolyn Y Woo
Carolyn Y Woo
Director
Darren Zeidel
Darren Zeidel (Age 54)
General Counsel
3 recent trades
Peter M Lieb
Peter M Lieb
General Counsel
Lisa Stevens
Lisa Stevens
EVP & Chief People Officer
Andy Weitz
Andy Weitz
Chief Marketing Officer
Michael Neller
Michael Neller (Age 47)
Insider