Aon plc
AONLast close · Oct 16, 2026292.55+5.75 (+2.00%)
Market cap$62.1B
Between May 12, 2026 and Sep 2, 2026, Aon (AON) insiders filed 40 Form 4 transactions: 7 sales worth $1.7M in total and 6 open-market purchases worth $6.5M; 7 of the sales were under 10b5-1 plans set in advance. The largest seller was Zeidel Darren, $274,050. 27 other filings were grants, exercises or gifts, which say nothing about buying or selling.
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Form 4 transactions
| Date | Insider | Title | Code | Plan | Shares | Price | Value |
|---|---|---|---|---|---|---|---|
| 2026-09-02 | KNIGHT LESTER B | Director | P | 1,739 | 325.63 | $566,270.6 | |
| 2026-09-02 | KNIGHT LESTER B | Director | P | 5,097 | 326.53 | $1.7M | |
| 2026-09-02 | KNIGHT LESTER B | Director | P | 7,212 | 327.52 | $2.4M | |
| 2026-09-02 | KNIGHT LESTER B | Director | P | 4,145 | 328.34 | $1.4M | |
| 2026-09-02 | KNIGHT LESTER B | Director | P | 1,440 | 329.69 | $474,753.6 | |
| 2026-09-02 | KNIGHT LESTER B | Director | P | 367 | 330.51 | $121,297.2 | |
| 2026-07-28 | Zeidel Darren | General Counsel | S | 10b5-1 | 700 | 376.00 | $263,200 |
| 2026-07-28 | Zeidel Darren | General Counsel | S | 10b5-1 | 725 | 378.00 | $274,050 |
| 2026-07-28 | Zeidel Darren | General Counsel | S | 10b5-1 | 475 | 380.00 | $180,500 |
| 2026-07-17 | Zeidel Darren | General Counsel | S | 10b5-1 | 625 | 370.00 | $231,250 |
| 2026-07-17 | Zeidel Darren | General Counsel | S | 10b5-1 | 650 | 372.00 | $241,800 |
| 2026-07-17 | Zeidel Darren | General Counsel | S | 10b5-1 | 675 | 374.00 | $252,450 |
| 2026-07-07 | Zeidel Darren | General Counsel | S | 10b5-1 | 600 | 360.00 | $216,000 |
| 2026-07-01 | Reese Edmund | Chief Financial Officer | M | 3,975 | — | — | |
| 2026-07-01 | Reese Edmund | Chief Financial Officer | F | 2,198 | 343.56 | $755,183.4 | |
| 2026-07-01 | Reese Edmund | Chief Financial Officer | M | 3,975 | 0.00 | $0 | |
| 2026-06-25 | KNIGHT LESTER B | Director | A | 1,488 | — | — | |
| 2026-06-25 | Alvarez Jose Antonio | Director | A | 776 | — | — | |
| 2026-06-25 | Alvarez Jose Antonio | Director | F | 372 | 315.95 | $117,681.6 | |
| 2026-06-25 | FRANCIS CHERYL A | Director | A | 776 | — | — | |
| 2026-06-25 | FRANCIS CHERYL A | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | STAVRIDIS JAMES G. | Director | A | 776 | — | — | |
| 2026-06-25 | STAVRIDIS JAMES G. | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | NOTEBAERT RICHARD C | Director | A | 776 | — | — | |
| 2026-06-25 | NOTEBAERT RICHARD C | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | SANTONA GLORIA | Director | A | 776 | — | — | |
| 2026-06-25 | SANTONA GLORIA | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | CAMPBELL JEFFREY C | Director | A | 776 | — | — | |
| 2026-06-25 | CAMPBELL JEFFREY C | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | Spruell Byron | Director | A | 776 | — | — | |
| 2026-06-25 | Spruell Byron | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | Cai Jin-Yong | Director | A | 776 | — | — | |
| 2026-06-25 | Cai Jin-Yong | Director | F | 397 | 315.95 | $125,281.8 | |
| 2026-06-25 | SMITH SARAH G | Director | A | 776 | — | — | |
| 2026-06-25 | SMITH SARAH G | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | Jenkins Jo Ann | Director | A | 776 | — | — | |
| 2026-06-25 | Jenkins Jo Ann | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-06-25 | Karaboutis Adriana | Director | A | 776 | — | — | |
| 2026-06-25 | Karaboutis Adriana | Director | F | 186 | 315.95 | $58,840.9 | |
| 2026-05-12 | NOTEBAERT RICHARD C | Director | G | 1,438 | 0.00 | $0 |
Codes are the SEC's: P open-market purchase, S open-market sale; M exercise, F tax withholding, A grant and G gift are routine. A 10b5-1 flag means the trade ran under a plan adopted in advance. Method notes in where the numbers come from.