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Aon shares outstanding AON

Diluted shares outstanding, averaged over each quarter, from 2008.

Latest quarter, to Jun 30, 2026
213.9M
On a year earlier
−1.6%
fewer shares

Aon had 213.9M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 30, 2026.

That is 1.6% fewer than a year earlier, so each share owns a little more of the company.

Shares outstanding over time

Open the interactive chart, with overlays and comparisons

Fiscal year by fiscal year

Fiscal yearShares, fourth quarterChange
FY2025216.5M−1%
FY2024218.2M+8%
FY2023202M−3%
FY2022209M−6%
FY2021221.4M−4%
FY2020230.7M−3%
FY2019236.7M−3%
FY2018244.9M−3%
FY2017251.4M−6%
FY2016268.2M−3%
FY2015277.6M−5%
FY2014293.7M−6%
FY2013311.5M−5%
FY2012327.2M−3%
FY2011338.2M−2%

Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.

Quarter by quarter

QuarterEndedShares outstandingOn a year earlier
Q2 FY26213.9M−2%
Q1 FY26215.4M−1%
Q4 FY25216.5M−1%
Q3 FY25216.7M−1%
Q2 FY25217.3M+2%
Q1 FY25217.9M+9%
Q4 FY24218.2M+8%
Q3 FY24218.4M+7%
Q2 FY24213.3M+3%
Q1 FY24200.1M−3%
Q4 FY23202M−3%
Q3 FY23204.6M−4%

What the shares outstanding tells you

Diluted shares outstanding, averaged over the period. Fewer shares means each one owns more of the company.

A falling count usually means buybacks. A rising one means stock pay, acquisitions paid in shares or new shares sold.

More on Aon

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.