Aon plc AON
NYSE AON
$275.85 +1.07 (+0.39%)
As of: Oct 13, 2026 · 2:33 PM EDT

Aon (AON) Shares Outstanding (Diluted) (2009 - 2026)

Updated

Aon (AON) posted Shares Outstanding (Diluted) of 213.9 million for Q2 2026, down 1.6% from 217.3 million a year earlier and down 0.7% from the prior quarter.

Analysis

Aon (AON) Shares Outstanding (Diluted) (2009 - 2026) Analysis & Trends

For FY2025, Aon's Shares Outstanding (Diluted) came in at 217.1 million, up 2.2% from FY2024.

  • Annual Shares Outstanding (Diluted) shows a five-year compound annual growth rate of -1.4% (FY2020 to FY2025).
  • In prior years, Aon's Shares Outstanding (Diluted) was 212.5 million in FY2024 (+3.7%), 205 million in FY2023 (-3.8%), 213.2 million in FY2022 (-5.7%) and 226.1 million in FY2021 (-3.0%).
  • The Q2 2026 figure stands as the lowest quarterly Shares Outstanding (Diluted) since Q4 2024.
  • On a year-over-year basis, Shares Outstanding (Diluted) increased in five of the last eight quarters, with growth averaging 2.5%.
  • The strongest year-over-year quarter for Shares Outstanding (Diluted) in the past five years was Q1 2025, with growth of 8.9%; the weakest was Q2 2022, with a decline of 5.8%.
  • According to Business Quant data, Shares Outstanding (Diluted) for the three prior quarters was 215.4 million (Q1 2026), 217.1 million (Q4 2025) and 216.7 million (Q3 2025).
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares Outstanding (Dil.) (Qtr)
1 Chubb 134.30 Bn 80.89 Bn 9.13 Bn 391.25 Mn
2 Progressive 130.32 Bn 106.15 Bn 9.04 Bn 584.20 Mn
3 Marsh & Mclennan Companies 85.17 Bn 76.66 Bn - 482.00 Mn
4 Travelers Companies 78.40 Bn 54.65 Bn 6.23 Bn 213.60 Mn
5 Manulife Financial 73.81 Bn -21.07 Bn - 1.71 Bn
6 Metlife 64.41 Bn -42.37 Bn 7.82 Bn 646.90 Mn
7 Allstate 60.46 Bn 21.73 Bn 8.73 Bn 259.10 Mn
8 Arthur J. Gallagher 60.04 Bn 54.44 Bn - 258.70 Mn
9 Aon 58.69 Bn 51.91 Bn - 213.90 Mn
10 Aflac 58.66 Bn 33.88 Bn 2.27 Bn 505.58 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 213.90 Mn
Mar 31, 2026 215.40 Mn
Dec 31, 2025 217.10 Mn
Sep 30, 2025 216.70 Mn
Jun 30, 2025 217.30 Mn
Mar 31, 2025 217.90 Mn
Dec 31, 2024 212.50 Mn
Sep 30, 2024 218.40 Mn
Jun 30, 2024 213.30 Mn
Mar 31, 2024 200.10 Mn
Dec 31, 2023 205.00 Mn
Sep 30, 2023 204.60 Mn
Jun 30, 2023 206.30 Mn
Mar 31, 2023 207.10 Mn
Dec 31, 2022 213.20 Mn
Sep 30, 2022 212.60 Mn
Jun 30, 2022 214.70 Mn
Mar 31, 2022 216.40 Mn
Dec 31, 2021 226.10 Mn
Sep 30, 2021 225.40 Mn
API Access

Aon Shares Outstanding (Diluted) API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=AON&period=max&api_key=YOUR_API_KEY