Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 330.51 | 367 | 121,297 | Form 4 |
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 329.69 | 1,440 | 474,754 | Form 4 |
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 328.34 | 4,145 | 1,360,969 | Form 4 |
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 327.52 | 7,212 | 2,362,074 | Form 4 |
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 326.53 | 5,097 | 1,664,323 | Form 4 |
| AON | Knight Lester B | Director | 09/02/2026 | Kauf | 325.63 | 1,739 | 566,271 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/28/2026 | Verkauf | 380.00 | 475 | 180,500 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/28/2026 | Verkauf | 378.00 | 725 | 274,050 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/28/2026 | Verkauf | 376.00 | 700 | 263,200 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/17/2026 | Verkauf | 374.00 | 675 | 252,450 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/17/2026 | Verkauf | 372.00 | 650 | 241,800 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/17/2026 | Verkauf | 370.00 | 625 | 231,250 | Form 4 |
| AON | Zeidel Darren | General Counsel | 07/07/2026 | Verkauf | 360.00 | 600 | 216,000 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).