Aon Basic Shares Outstanding 2012-2026 | AON

Aon annual/quarterly basic shares outstanding history and growth rate from 2012 to 2026. Basic shares outstanding can be defined as the number of shares held by shareholders including insiders but not including a company's treasury shares.
  • Aon basic shares outstanding for the quarter ending March 31, 2026 were $0.214B, a 0.97% decline year-over-year.
  • Aon basic shares outstanding for the twelve months ending March 31, 2026 were $0.861B, a 0.42% increase year-over-year.
  • Aon annual basic shares outstanding for 2025 were $0.216B, a 2.13% increase from 2024.
  • Aon annual basic shares outstanding for 2024 were $0.211B, a 3.88% increase from 2023.
  • Aon annual basic shares outstanding for 2023 were $0.204B, a 3.87% decline from 2022.
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Aon Annual Basic Shares Outstanding
(Millions of US $)
2025 $216
2024 $211
2023 $204
2022 $212
2021 $225
2020 $232
2019 $239
2018 $245
2017 $259
2016 $268
2015 $281
2014 $296
2013 $311
2012 $329
2011 $336
Aon Quarterly Basic Shares Outstanding
(Millions of US $)
2026-03-31 $214
2025-12-31 $215
2025-09-30 $216
2025-06-30 $216
2025-03-31 $216
2024-12-31 $211
2024-09-30 $217
2024-06-30 $213
2024-03-31 $199
2023-12-31 $204
2023-09-30 $203
2023-06-30 $205
2023-03-31 $206
2022-12-31 $212
2022-09-30 $211
2022-06-30 $213
2022-03-31 $215
2021-12-31 $225
2021-09-30 $225
2021-06-30 $227
2021-03-31 $227
2020-12-31 $232
2020-09-30 $233
2020-06-30 $233
2020-03-31 $233
2019-12-31 $239
2019-09-30 $237
2019-06-30 $241
2019-03-31 $242
2018-12-31 $245
2018-09-30 $244
2018-06-30 $246
2018-03-31 $249
2017-12-31 $259
2017-09-30 $256
2017-06-30 $262
2017-03-31 $265
2016-12-31 $268
2016-09-30 $268
2016-06-30 $268
2016-03-31 $272
2015-12-31 $281
2015-09-30 $281
2015-06-30 $285
2015-03-31 $284
2014-12-31 $296
2014-09-30 $292
2014-06-30 $299
2014-03-31 $304
2013-12-31 $311
2013-09-30 $310
2013-06-30 $314
2013-03-31 $316
2012-12-31 $329
2012-09-30 $327
2012-06-30 $332
2012-03-31 $332
2011-12-31 $336
2011-09-30 $333
2011-06-30 $338
Sector Industry Market Cap Revenue
Finance Insurance Brokers $66.970B $17.181B
Aon plc is a multinational corporation that offers risk management services, insurance and reinsurance brokerage, human resource consulting and outsourcing services worldwide. As an insurance broker, Aon utilizes its resources to develop the individual as well as group insurance programs. It offers its services globally across personal lines, mid-market companies and multinational companies. Currently, following a major realignment of principal service lines the company reports through four revenue lines, namely, Commercial Risk Solutions, Reinsurance Solutions, Wealth Solutions, and Health Solutions.
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