Aon Ownership

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

Recent Insider Transactions

BIT:1AON Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
27 Nov 24	Sell€242,736	Mindy Simon	Individual	650	€373.44
26 Nov 24	Sell€472,051	Lisa Stevens	Individual	1,275	€370.24
28 Aug 24	Buy€221,557	Byron Spruell	Individual	725	€305.60
12 Aug 24	Sell€285,953	Darren Zeidel	Individual	950	€301.00
12 Aug 24	Sell€120,330	Lisa Stevens	Individual	400	€300.82

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 1AON?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	3,040	0.00141%
State or Government	257,158	0.119%
Individual Insiders	2,528,786	1.17%
Public Companies	4,100,000	1.9%
General Public	15,935,377	7.38%
Institutions	193,115,555	89.4%

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

Top Shareholders

Top 25 shareholders own 58.94% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
9.16%	The Vanguard Group, Inc.	19,778,451	€6.2b	1.33%	0.1%
6.98%	BlackRock, Inc.	15,074,543	€4.7b	2.31%	0.08%
6.56%	Capital Research and Management Company	14,159,914	€4.4b	-1.67%	0.23%
4.55%	Massachusetts Financial Services Company	9,832,449	€3.1b	-15.4%	0.77%
4.25%	State Street Global Advisors, Inc.	9,173,788	€2.9b	0.91%	0.12%
2.51%	Geode Capital Management, LLC	5,414,557	€1.7b	9.39%	0.13%
2.2%	JP Morgan Asset Management	4,748,248	€1.5b	4.38%	0.18%
2.16%	Morgan Stanley Investment Management Inc.	4,672,713	€1.5b	-2.66%	1.22%
2.01%	HPS Investment Partners, LLC	4,339,759	€1.4b	0%	97.31%
1.9%	Berkshire Hathaway Inc.	4,100,000	€1.3b	0%	no data
1.52%	Mawer Investment Management Ltd.	3,273,574	€1.0b	-16.1%	2.68%
1.39%	Polen Capital Management, LLC	3,007,719	€944.0m	318%	3.22%
1.39%	BNY Asset Management	2,995,399	€940.1m	18%	0.2%
1.24%	UBS Asset Management AG	2,676,022	€839.9m	23.7%	0.08%
1.21%	Eagle Capital Management LLC	2,623,489	€823.4m	-34.1%	3.37%
1.15%	Morgan Stanley, Investment Banking and Brokerage Investments	2,475,959	€777.1m	21.8%	0.1%
1.11%	Mitsubishi UFJ Asset Management Co., Ltd.	2,390,571	€750.3m	2.63%	0.41%
1.06%	Northern Trust Global Investments	2,290,619	€718.9m	6.1%	0.11%
1.04%	Lazard Asset Management LLC	2,241,127	€703.4m	-4.12%	0.72%
1.01%	Boston Partners Global Investors, Inc.	2,175,715	€682.9m	4.13%	0.47%
0.99%	Neuberger Berman Investment Advisers LLC	2,136,107	€670.4m	0.58%	0.61%
0.99%	Artisan Partners Limited Partnership	2,135,832	€670.4m	3.3%	0.54%
0.95%	WCM Investment Management, LLC	2,051,816	€644.0m	0.3%	1.07%
0.85%	Veritas Asset Management LLP	1,839,697	€577.4m	-17.1%	3.89%
0.77%	Norges Bank Investment Management	1,661,280	€521.4m	0%	0.04%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/05/25 07:38
End of Day Share Price	2025/05/23 00:00
Earnings	2025/03/31
Annual Earnings	2024/12/31

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.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* 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 41 analysts. 16 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Ishan Majumdar	Baptista Research
Jay Gelb	Barclays
Taylor Scott	Barclays