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Aon plc (AON)
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Aon plc (AON) Shares Outstanding: 0.22

Is Aon plc’s shares outstanding high or low?

Aon plc's shares outstanding of 0.22 is in line with its 5-year average of 0.22, around the middle of its 5-year range (0.20–0.23).

The shares outstanding for Aon plc (AON) is 0.22. It is above its 12-month average by 0.87% (0.21).

AON Shares Outstanding Chart

AON Shares Outstanding
0.22+1.75% 1Y
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AON Average Shares Outstanding Chart

AON Current vs Average Shares Outstanding Chart

AON Shares Outstanding Metrics

SHARES OUTSTANDING

0.22

SHARES OUTSTANDING AVG TTM

0.21

SHARES OUTSTANDING AVG 3Y

0.21

SHARES OUTSTANDING AVG 5Y

0.22

SHARES OUTSTANDING AVG 10Y

0.24

SHARES OUTSTANDING AVG 15Y

0.26

SHARES OUTSTANDING AVG 20Y

0.27

CURRENT VS TTM AVG

+0.87%

CURRENT VS 3Y AVG

+2.22%

CURRENT VS 5Y AVG

-0.59%

CURRENT VS 10Y AVG

-8.63%

CURRENT VS 15Y AVG

-17.13%

CURRENT VS 20Y AVG

-20.16%

Share Structure

Shares Outstanding

215.10M

Float Shares

N/A

Stock Price

$331.59

Market Cap

$70.8B

Annual Shares Outstanding History

YearWeighted Average SharesYoY Change
2025215.10M+1.75%
2024211.40M+3.88%
2023203.50M-3.87%
2022211.70M-5.79%
2021224.70M-3.10%
2020231.90M-2.81%
2019238.60M-2.69%
2018245.20M-5.15%
2017258.50M-3.53%
2016267.95M-4.62%
2015280.93M-4.88%
2014295.35M-5.27%
2013311.76M-4.87%
2012327.72M-2.32%
2011335.50M+14.53%
2010292.95M+3.53%
2009282.95M-0.83%
2008285.33M-4.25%
2007298.00M-5.99%
2006317.00M-1.55%
2005322.00M+0.81%
2004319.41M+0.68%
2003317.26M+10.32%
2002287.58M+7.84%
2001266.67M+1.83%
2000261.88M+1.30%
1999258.52M+1.39%
1998254.98M+1.10%
1997252.20M-0.40%
1996253.22M-

Relationship: Market Cap = Shares Outstanding × Stock Price

Key concepts:

  • Float shares: Shares available for public trading
  • Dilution: When new shares are issued, existing shareholders own less
  • Buybacks: Reduce share count, increasing EPS and ownership stake
  • Stock splits: Increase share count but don't change market cap

Aon plc Shares Outstanding Formula & Definition

Shares Outstanding represents the total number of shares issued by a company that are held by all shareholders. Changes in share count affect EPS and ownership dilution.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

Aon plc Shares Outstanding FAQ

What is the shares outstanding for Aon plc (AON)?
The shares outstanding for AON stock is 0.22.
Is Aon plc's shares outstanding high or low?
Aon plc's shares outstanding of 0.22 is in line with its 5-year average of 0.22, around the middle of its 5-year range (0.20–0.23).
What is the TTM average shares outstanding for Aon plc (AON)?
The TTM average shares outstanding for AON stock is 0.21.
What is the 3Y average shares outstanding for Aon plc (AON)?
The 3Y average shares outstanding for AON stock is 0.21.
What is the 5Y average shares outstanding for Aon plc (AON)?
The 5Y average shares outstanding for AON stock is 0.22.
What is the 10Y average shares outstanding for Aon plc (AON)?
The 10Y average shares outstanding for AON stock is 0.24.
What is the 15Y average shares outstanding for Aon plc (AON)?
The 15Y average shares outstanding for AON stock is 0.26.
What is the 20Y average shares outstanding for Aon plc (AON)?
The 20Y average shares outstanding for AON stock is 0.27.

Aon plc Shares Outstanding History

DATESHARES OUTSTANDING
2025-12-310.22
2024-12-310.21
2023-12-310.20
2022-12-310.21
2021-12-310.22
2020-12-310.23
2019-12-310.24
2018-12-310.25
2017-12-310.26
2016-12-310.27
2015-12-310.28
2014-12-310.30
2013-12-310.31
2012-12-310.33
2011-12-310.34
2010-12-310.29
2009-12-310.28
2008-12-310.29
2007-12-310.30
2006-12-310.32
2005-12-310.32
2004-12-310.32
2003-12-310.32
2002-12-310.29
2001-12-310.27
2000-12-310.26
1999-12-310.26
1998-12-310.25
1997-12-310.25
1996-12-310.25

About Aon plc

Aon plc is a global professional services firm that delivers expert advice and innovative solutions across the key areas of risk, retirement, and health. Its comprehensive commercial risk offerings include retail brokerage, cybersecurity consulting, global risk management strategies, and the administration of captive insurance programs. For health-related needs, Aon provides brokerage services for benefits and operates health care exchanges. The company is also active in the capital markets, specializing in treaty and facultative reinsurance, insurance-linked securities, and corporate finance advisory services such as capital raising, strategic guidance, restructuring, and mergers and acquisitions support. Additionally, Aon consults on the design and management of retirement programs, furnishes actuarial services, and advises on investment strategies for a wide array of plan types, including defined benefit and defined contribution plans, endowments, and foundations, for both public and private sector clients. The firm further extends its services through specific brands like CoverWallet, Affinity, Aon Inpoint, and ReView. Established in 1919, Aon plc's corporate headquarters are located in Dublin, Ireland.

Dublin
60,000 employees
Financial Services / Insurance - Brokers
Sector
Financial Services
Industry
Insurance - Brokers
CEO
Gregory Clarence Case