Aon plc

NYSE:AON Stock Report

Market Cap: US$77.7b

Aon Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

NYSE:AON Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
27 Nov 24SellUS$256,321Mindy SimonIndividual650US$394.34
26 Nov 24SellUS$494,295Lisa StevensIndividual1,275US$387.68

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of AON?
Owner TypeNumber of SharesOwnership Percentage
Private Companies7,7760.00361%
State or Government284,9070.132%
Individual Insiders2,536,2081.18%
Public Companies4,100,0001.9%
General Public15,358,2217.12%
Institutions193,339,48589.7%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.


Top Shareholders

Top 25 shareholders own 59.07% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
9.41%
The Vanguard Group, Inc.
20,289,743US$7.3b2.59%0.09%
7.38%
BlackRock, Inc.
15,906,097US$5.7b5.52%0.08%
6.6%
Capital Research and Management Company
14,238,973US$5.1b0.56%0.21%
4.23%
State Street Global Advisors, Inc.
9,124,310US$3.3b-0.54%0.11%
4.15%
Massachusetts Financial Services Company
8,952,011US$3.2b-8.95%0.69%
2.59%
Geode Capital Management, LLC
5,588,279US$2.0b3.21%0.11%
2.38%
Morgan Stanley Investment Management Inc.
5,137,507US$1.9b9.95%1.31%
1.97%
HPS Investment Partners, LLC
4,243,321US$1.5b-2.22%98.37%
1.9%
Berkshire Hathaway Inc.
4,100,000US$1.5b0%0.54%
1.77%
JP Morgan Asset Management
3,810,873US$1.4b-19.7%0.12%
1.6%
BNY Asset Management
3,460,402US$1.2b15.5%0.22%
1.38%
Mawer Investment Management Ltd.
2,971,533US$1.1b-9.23%2.66%
1.28%
UBS Asset Management AG
2,762,955US$996.1m3.25%0.07%
1.27%
Polen Capital Management, LLC
2,745,627US$989.8m-8.71%2.88%
1.26%
Morgan Stanley
2,713,637US$978.3m9.6%0.09%
1.26%
Mitsubishi UFJ Asset Management Co., Ltd.
2,706,904US$975.9m13.2%0.4%
1.06%
Eagle Capital Management LLC
2,284,259US$823.5m-12.9%2.58%
1.05%
Northern Trust Global Investments
2,268,683US$817.9m-0.96%0.1%
1.01%
Artisan Partners Limited Partnership
2,176,045US$784.5m1.88%0.54%
0.98%
Norges Bank Investment Management
2,115,346US$762.6m27.3%0.05%
0.97%
Neuberger Berman Investment Advisers LLC
2,080,814US$750.2m-2.59%0.54%
0.95%
WCM Investment Management, LLC
2,040,243US$735.5m-0.56%0.97%
0.92%
Farallon Capital Management, L.L.C.
1,986,417US$716.1m45.9%3.29%
0.86%
Sustainable Growth Advisers, LP
1,847,140US$665.9m16%3.24%
0.85%
Lazard Asset Management LLC
1,822,886US$657.2m-18.7%0.61%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/10/15 10:32
End of Day Share Price 2025/10/15 00:00
Earnings2025/06/30
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Aon plc is covered by 32 analysts. 15 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Jay GelbBarclays
Taylor ScottBarclays
null nullBMO Capital Markets Equity Research