NYSE:AON | Shares Outstanding | Aon plc

Complete source-backed shares outstanding history.

Available history
2009-03-31 to 2026-07-28
Data captured

Historical Shares Outstanding

DateShares outstanding
2026-07-28212,125,434
2026-04-30213,576,949
2026-02-12214,254,496
2025-10-30214,935,265
2025-07-24215,626,597
2025-04-24215,939,916
2025-02-14216,001,106
2024-10-24216,266,278
2024-07-25217,242,161
2024-04-25217,430,759
2024-02-16198,297,735
2023-10-26200,216,345
2023-07-27202,866,793
2023-04-27204,245,515
2023-02-16205,142,379
2022-10-27206,852,936
2022-07-28210,925,557
2022-04-28212,383,902
2022-02-17213,944,460
2021-10-28220,332,406
2021-07-29225,747,147
2021-04-29225,647,250
2021-02-18225,984,346
2020-10-29228,616,348
2020-07-30231,650,336
2020-04-30231,084,584
2020-02-13231,582,094
2019-10-24234,137,408
2019-07-25235,841,886
2019-04-25240,521,662
2019-02-15239,999,442
2018-10-25240,844,114
2018-07-26242,655,343
2018-05-03244,512,517
2018-02-16246,180,510
2017-10-26249,897,712
2017-08-03254,337,319
2017-05-08262,070,015
2017-02-22262,600,762
2016-10-20263,094,046
2016-07-21265,587,217
2016-04-21264,918,514
2016-02-05270,081,701
2015-12-31269,800,000
2015-10-22273,916,827
2015-09-30273,900,000
2015-07-23280,042,927
2015-06-30279,800,000
2015-03-31281,700,000
2015-01-31280,250,522
2014-12-31280,000,000
2014-09-30285,100,000
2014-06-30290,500,000
2014-03-31296,500,000
2014-01-31301,100,416
2013-12-31300,700,000
2013-09-30301,000,000
2013-06-30307,500,000
2013-03-31309,100,000
2013-01-31311,573,644
2012-12-31310,900,000
2012-09-30318,700,000
2012-06-30322,400,000
2012-04-02326,415,020
2012-03-31326,400,000
2012-01-31325,179,163
2011-12-31324,400,000
2011-09-30323,300,000
2011-06-30326,700,000
2011-03-31330,500,000
2011-01-31333,088,304
2010-12-31332,300,000
2010-09-30270,900,000
2010-06-30269,700,000
2010-03-31269,400,000
2010-01-29266,851,500
2009-12-31266,200,000
2009-09-30273,900,000
2009-06-30274,500,000
2009-03-31276,800,000