Number of shares outstanding for Aon (AON)

Number of shares outstanding as of October 2026 : 213,200,000

According to Aon's latest financial reports and stock price the company's current number of shares outstanding is 213,200,000. At the end of 2026 the company had 213,200,000 shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.

Shares outstanding history for Aon from 1999 to 2026

Shares Outstanding at the end of each year

Year	Shares Outstanding	Change
2026	0.21 B	-0.88%
2025	0.21 B	-0.69%
2024	0.21 B	8.14%
2023	0.20 B	-3.47%
2022	0.20 B	-5.38%
2021	0.21 B	-4.32%
2020	0.22 B	-2.34%
2019	0.23 B	-3.18%
2018	0.24 B	-3.54%
2017	0.25 B	-5.39%
2016	0.26 B	-3.58%
2015	0.27 B	-3.98%
2014	0.28 B	-6.26%
2013	0.30 B	-4.68%
2012	0.32 B	-4.33%
2011	0.33 B	21.19%
2010	0.27 B	-3.08%
2009	0.28 B	5.01%
2008	0.27 B	-7.77%
2007	0.29 B	-13.26%
2006	0.34 B	4%
2005	0.32 B	2.7%
2004	0.31 B	0.55%
2003	0.31 B	14.28%
2002	0.27 B	1.47%
2001	0.27 B	4.88%
2000	0.26 B	0.15%
1999	0.26 B

Shares Outstanding for similar companies or competitors

Company	Shares Outstanding	differencediff.	Country
Marsh & McLennan Companies MRSH	480,000,000	125.14%	🇺🇸 USA
Prudential PUK	1,290,000,000	505.07%	🇬🇧 UK
Arch Capital ACGL	343,200,000	60.98%	🇧🇲 Bermuda
AXIS Capital AXS	73,549,000	-65.50%	🇧🇲 Bermuda

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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