Companies / Aon plc
Aon plc
Financials · FY2025
Ownership
212.1M shares outstanding · as of Jul 28, 2026
Ownership
| Institutions | 88.88% | 188,540,403 |
| Public float | 11.12% | 23,585,031 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 14
View all →| Insider | % of shares | Shares |
|---|---|---|
Campbell Jeffrey CDirector | — | — |
Case Gregory CCEOPresident & CEO · Director | — | — |
Corona AnneChief Commercial Officer | — | — |
Francis Cheryl aDirector | — | — |
Goltermann LoriCEOCEO, Regions & North America | — | — |
Knight Lester BDirector | — | — |
Marcell AndyCEOGlobal CEO, Solution Lines | — | — |
Notebaert Richard CDirector | — | — |
Reese EdmundChief Financial Officer | — | — |
Santona GloriaDirector | — | — |
Institutional holders 1,282
View all →| Holder | Value | % of shares |
|---|---|---|
| $7.12B | 9.51% | |
| $5.21B | 7.41% | |
| $4.32B | 5.78% | |
| $3.12B | 4.44% | |
| $3.02B | 4.03% | |
| $2.77B | 3.70% | |
| $1.97B | 2.63% | |
| $1.69B | 2.47% | |
| $1.27B | 1.70% | |
| $1.16B | 1.54% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 12, 2026 | Case Gregory C CEO | Other | Class A Ordinary Stock | $10.14M | -32K -3.33% | 936,252 0.44% of shares | low |
| Feb 12, 2026 | Stevens Lisa Executive | Other | Class A Ordinary Stock | $2.38M | -8K -22.99% | 25,357 0.01% of shares | low |
| Feb 12, 2026 | Marcell Andy CEO | Other | Class A Ordinary Stock | $2.07M | -7K -45.17% | 7,983 <0.01% of shares | low |
| Feb 17, 2026 | Zeidel Darren Executive | Sell | Class A Ordinary Stock | $1.64M | -5K -19.93% | 20,254 <0.01% of shares | medium |
| Feb 26, 2026 | Zeidel Darren Executive | Sell | Class A Ordinary Stock | $1.42M | -4K -21.23% | 15,954 <0.01% of shares | medium |
| Feb 10, 2026 | Knight Lester B Director | Buy | Class A Ordinary Stock | $1.28M | +4K +2.88% | 143,000 0.07% of shares | high |
| Feb 12, 2026 | Goltermann Lori CEO | Other | Class A Ordinary Stock | $853.3K | -3K -29.44% | 6,503 <0.01% of shares | low |
| Feb 12, 2026 | Zeidel Darren Executive | Other | Class A Ordinary Stock | $847.8K | -3K -9.84% | 24,693 0.01% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AON | — | G0403H108 |