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
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Warren E. Buffett 13F manager | Exit | — | $-1.27B | -3.6M -100.00% | — | high |
| Q1 2026 as of | Norges Bank 13F manager | Exit | — | $-1.16B | -3.3M -100.00% | — | high |
| Q3 2025 as of | Farallon Capital Management LLC 13F manager | New | — | $812.30M | +2.3M | 2,278,017 1.07% of shares | high |
| Q4 2025 as of | Norges Bank 13F manager | Add | — | $568.10M | +1.6M +96.64% | 3,275,848 1.54% of shares | high |
| Q2 2026 as of | Mitsubishi UFJ Asset Management Co., Ltd. 13F manager | Add | — | $312.13M | +941K +51.91% | 2,753,913 1.30% of shares | high |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | — | $-199.14M | -617K -96.86% | 19,976 <0.01% of shares | high |
| Q2 2023 as of | Barclays PLC 13F manager | Add | — | $191.61M | +555K +200.52% | 831,903 0.39% of shares | high |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | — | $177.39M | +550K +127.76% | 979,755 0.46% of shares | high |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AON | — | G0403H108 |