Latest period
215.40M
YoY change
+1.9%
5Y CAGR
-1.5%
Peak year (2006)
342.10M
Latest annual
216.50M
Shares Outstanding history chart for Aon (AON) from 1985 to 2025
Latest: 216.50M
Shares Outstanding growth chart for Aon (AON) from 1985 to 2025
Latest: +1.9%
Shares Outstanding history table for Aon (AON) from 1985 to 2025
| 2025 | 216.50M | +1.9% | +4.00M | ||
| 2024 | 212.50M | +3.7% | +7.50M | ||
| 2023 | 205.00M | -3.8% | -8.20M | ||
| 2022 | 213.20M | -5.7% | -12.90M | ||
| 2021 | 226.10M | -3.0% | -7.00M | ||
| 2020 | 233.10M | -3.1% | -7.50M | ||
| 2019 | 240.60M | -2.6% | -6.40M | ||
| 2018 | 247.00M | -5.3% | -13.70M | ||
| 2017 | 260.70M | -3.6% | -9.60M | ||
| 2016 | 270.30M | -4.8% | -13.50M | ||
| 2015 | 283.80M | -5.3% | -15.80M | ||
| 2014 | 299.60M | -5.0% | -15.80M | ||
| 2013 | 315.40M | -5.2% | -17.20M | ||
| 2012 | 332.60M | -2.4% | -8.30M | ||
| 2011 | 340.90M | +14.4% | +42.80M | ||
| 2010 | 298.10M | +2.4% | +7.00M | ||
| 2009 | 291.10M | -3.3% | -9.80M | ||
| 2008 | 300.90M | -6.8% | -22.10M | ||
| 2007 | 323.00M | -5.6% | -19.10M | ||
| 2006 | 342.10M | +0.2% | +600,000 | ||
| 2005 | 341.50M | +1.5% | +4.90M | ||
| 2004 | 336.60M | +5.9% | +18.80M | ||
| 2003 | 317.80M | +10.5% | +30.22M | ||
| 2002 | 287.58M | +5.8% | +15.88M | ||
| 2001 | 271.70M | +2.6% | +6.89M | ||
| 2000 | 264.80M | +0.8% | +2.10M | ||
| 1999 | 262.70M | +1.3% | +3.30M | ||
| 1998 | 259.40M | +1.3% | +3.40M | ||
| 1997 | 256.00M | +1.1% | +2.78M | ||
| 1996 | 253.22M | +3.5% | +8.65M | ||
| 1995 | 244.57M | +2.4% | +5.68M | ||
| 1994 | 238.90M | -0.1% | -192,750 | ||
| 1993 | 239.09M | -1.8% | -4.37M | ||
| 1992 | 243.46M | +10.7% | +23.46M | ||
| 1991 | 220.00M | -1.5% | -3.36M | ||
| 1990 | 223.36M | +0.9% | +2.03M | ||
| 1989 | 221.33M | +2.3% | +5.07M | ||
| 1988 | 216.27M | -3.0% | -6.63M | ||
| 1987 | 222.89M | -0.4% | -888,922 | ||
| 1986 | 223.78M | -0.9% | -1.99M | ||
| 1985 | 225.77M | — | — |
- 2025216.50M+1.9%
- 2024212.50M+3.7%
- 2023205.00M-3.8%
- 2022213.20M-5.7%
- 2021226.10M-3.0%
- 2020233.10M-3.1%
- 2019240.60M-2.6%
- 2018247.00M-5.3%
- 2017260.70M-3.6%
- 2016270.30M-4.8%
- 2015283.80M-5.3%
- 2014299.60M-5.0%
- 2013315.40M-5.2%
- 2012332.60M-2.4%
- 2011340.90M+14.4%
- 2010298.10M+2.4%
- 2009291.10M-3.3%
- 2008300.90M-6.8%
- 2007323.00M-5.6%
- 2006342.10M+0.2%
- 2005341.50M+1.5%
- 2004336.60M+5.9%
- 2003317.80M+10.5%
- 2002287.58M+5.8%
- 2001271.70M+2.6%
- 2000264.80M+0.8%
- 1999262.70M+1.3%
- 1998259.40M+1.3%
- 1997256.00M+1.1%
- 1996253.22M+3.5%
- 1995244.57M+2.4%
- 1994238.90M-0.1%
- 1993239.09M-1.8%
- 1992243.46M+10.7%
- 1991220.00M-1.5%
- 1990223.36M+0.9%
- 1989221.33M+2.3%
- 1988216.27M-3.0%
- 1987222.89M-0.4%
- 1986223.78M-0.9%
- 1985225.77M—
Shares Outstanding values are taken from Aon's reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Shares Outstanding at Aon (AON)
According to Aon's latest reported financial statements, the company's latest reported diluted shares outstanding is 215.40M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
2025's annual diluted shares outstanding for Aon (AON) came in at 216.50M – edged up 1.9% year-over-year.
Across 2020–2025 (5 years), Aon diluted shares outstanding produced a CAGR of -1.5% – sustaining 2 straight years of year-over-year growth.
Between 2006 and 2025, Aon diluted shares outstanding plunged 36.7%, falling from 342.10M to 216.50M.
342.10M stands as the all-time-high annual diluted shares outstanding, posted in 2006, against a low of 205.00M during 2023.
Aon Shares Outstanding by Year
Aon Shares Outstanding 2025: 216.50M
Aon posted diluted shares outstanding of 216.50M in 2025, edged up 1.9% from 2024.
Aon Shares Outstanding 2024: 212.50M
In 2024, Aon reported diluted shares outstanding of 212.50M, edged up 3.7% from 2023.
Aon Shares Outstanding 2023: 205.00M
Aon diluted shares outstanding in 2023 was 205.00M, edged down 3.8% below 2022. This figure represents the lowest annual value in the available history.
Aon Shares Outstanding 2022: 213.20M
2022's diluted shares outstanding for Aon came in at 213.20M, declined 5.7% below 2021.
Aon Shares Outstanding 2021: 226.10M
Aon diluted shares outstanding in 2021 was 226.10M.
See more financial history for Aon (AON).
Sector peers by Shares Outstanding
Financial Services peers of Aon (AON), ranked by their latest diluted shares outstanding
| 7.55B | |
| 3.22B | |
| 2.79B | |
| 2.16B | |
| 1.97B | |
| 1.59B | |
| 898.00M | |
| 317.60M |
- 3.22B
- 2.79B
- 1.97B
- 1.59B
- 898.00M
- 317.60M
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