20 insiders reported 134 Form 4 transactions for Aon plc (AON) over the past 18 months (most recent 2026-09-03). Recent activity: KNIGHT LESTER B (Director) Buy 1,739 shares, KNIGHT LESTER B (Director) Buy 5,097 shares, KNIGHT LESTER B (Director) Buy 7,212 shares, KNIGHT LESTER B (Director) Buy 4,145 shares, KNIGHT LESTER B (Director) Buy 1,440 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 1,739 | $566,271 |
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 5,097 | $1.7M |
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 7,212 | $2.4M |
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 4,145 | $1.4M |
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 1,440 | $474,754 |
| 2026-09-03 | KNIGHT LESTER B | Director | Buy | 367 | $121,297 |
| 2026-07-30 | Zeidel Darren | General Counsel | Sell | 700 | $263,200 |
| 2026-07-30 | Zeidel Darren | General Counsel | Sell | 725 | $274,050 |
| 2026-07-30 | Zeidel Darren | General Counsel | Sell | 475 | $180,500 |
| 2026-07-21 | Zeidel Darren | General Counsel | Sell | 625 | $231,250 |
| 2026-07-21 | Zeidel Darren | General Counsel | Sell | 650 | $241,800 |
| 2026-07-21 | Zeidel Darren | General Counsel | Sell | 675 | $252,450 |
| 2026-07-09 | Zeidel Darren | General Counsel | Sell | 600 | $216,000 |
| 2026-07-06 | Reese Edmund | Chief Financial Officer | Buy | 3,975 | $0 |
| 2026-07-06 | Reese Edmund | Chief Financial Officer | Sell | 2,198 | $755,183 |
| 2026-06-29 | KNIGHT LESTER B | Director | Buy | 1,488 | $0 |
| 2026-06-29 | SMITH SARAH G | Director | Buy | 776 | $0 |
| 2026-06-29 | SMITH SARAH G | Director | Sell | 186 | $58,843 |
| 2026-06-29 | SANTONA GLORIA | Director | Buy | 776 | $0 |
| 2026-06-29 | SANTONA GLORIA | Director | Sell | 186 | $58,843 |
| 2026-06-29 | NOTEBAERT RICHARD C | Director | Buy | 776 | $0 |
| 2026-06-29 | NOTEBAERT RICHARD C | Director | Sell | 186 | $58,843 |
| 2026-06-29 | Cai Jin-Yong | Director | Buy | 776 | $0 |
| 2026-06-29 | Cai Jin-Yong | Director | Sell | 397 | $125,280 |
| 2026-06-29 | Jenkins Jo Ann | Director | Buy | 776 | $0 |
Source: SEC Form 4 filings · as of 2026-09-03