AON

Aon plc

Financial ServicesInsurance - BrokersIEUSDCountry macro →

$316.06

+1.90%Live · FMPMay 29, 2026

Market cap

$67.5B

52w range

304.59 – 381.00

P / E

—

EPS

—

Volume

2.02M

Revenue · FY

$17.18B

+9.45% YoY

Stock splits

DB · stock_splits4

Date	Ratio	Type	Multiplier
May 18, 1999	3-for-2	Forward	1.50×
May 15, 1997	3-for-2	Forward	1.50×
May 17, 1994	3-for-2	Forward	1.50×
May 27, 1987	2-for-1	Forward	2.00×

4DB · FMP /mergers-acquisitions

Whole-company transactions where AON is acquirer or target.

Date	Role	Counterparty	Filing
Feb 26, 2024	Acquirer	NFP	SEC →
Jul 26, 2010	Acquirer	Hewitt	SEC →
Mar 27, 2001	Acquirer	ASI	SEC →
Feb 06, 1997	Acquirer	A&A	SEC →

DB · 13D/G3

Filed	Form	Reporter	% owned	Shares
Nov 13, 2024	—	95-1411037	5.60%	—	SEC →
Feb 09, 2022	—	The Vanguard Group - 23-1945930	7.59%	—	SEC →
Feb 02, 2022	—	04-2747644	8.20%	—	SEC →

Corporate actions combine splits (live, full history), symbol changes (refreshed weekly), the daily M&A wire, and 13D/G filings.