As of the latest Form 4 filed Jul 9, 2026.
What Aon PLC insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 83 most recent filings for AON.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-09 | 2026-07-07 | Zeidel Darren General Counsel | SSale | −600.00 | $360.00 | $216K | Yes (planned) | Form 4 ↗ |
| 2026-07-06 | 2026-07-01 | Reese Edmund Chief Financial Officer | FTax | −2.20K | $343.56 | $755K | No | Form 4 ↗ |
| 2026-07-06 | 2026-07-01 | Reese Edmund, Chief Financial Officer | MExercise | +3.98K | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | KNIGHT LESTER B Director | AAward | +1.49K | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Alvarez Jose Antonio Director | FTax | −372.47 | $315.95 | $118K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Alvarez Jose Antonio, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | FRANCIS CHERYL A Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | FRANCIS CHERYL A, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | STAVRIDIS JAMES G. Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | STAVRIDIS JAMES G., Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | NOTEBAERT RICHARD C Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | NOTEBAERT RICHARD C, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | SANTONA GLORIA Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | SANTONA GLORIA, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | CAMPBELL JEFFREY C Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | CAMPBELL JEFFREY C, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Spruell Byron Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Spruell Byron, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Cai Jin-Yong Director | FTax | −396.52 | $315.95 | $125K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Cai Jin-Yong, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | SMITH SARAH G Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | SMITH SARAH G, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Jenkins Jo Ann Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Jenkins Jo Ann, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Karaboutis Adriana Director | FTax | −186.24 | $315.95 | $58.8K | No | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | Karaboutis Adriana, Director | AAward | +776.00 | — | — | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-12 | NOTEBAERT RICHARD C Director | GGift | −1.44K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Corona Anne Chief Commercial Officer | FTax | −77.08 | $321.41 | $24.8K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Corona Anne, Chief Commercial Officer | MExercise | +174.00 | — | — | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Corona Anne, Chief Commercial Officer | FTax | −85.50 | $321.41 | $27.5K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Corona Anne, Chief Commercial Officer | MExercise | +193.00 | — | — | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Goltermann Lori CEO, Regions & North America | FTax | −126.15 | $321.41 | $40.5K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Goltermann Lori, CEO, Regions & North America | MExercise | +290.00 | — | — | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Goltermann Lori, CEO, Regions & North America | FTax | −99.18 | $321.41 | $31.9K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Goltermann Lori, CEO, Regions & North America | MExercise | +228.00 | — | — | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Marcell Andy Global CEO, Solution Lines | FTax | −225.96 | $321.41 | $72.6K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Marcell Andy, Global CEO, Solution Lines | MExercise | +464.00 | — | — | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Marcell Andy, Global CEO, Solution Lines | FTax | −567.83 | $321.41 | $183K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Marcell Andy, Global CEO, Solution Lines | MExercise | +1.17K | — | — | No | Form 4 ↗ |
| 2026-03-02 | 2026-02-26 | Zeidel Darren General Counsel | SSale | −4.30K | $329.72 | $1.42M | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C President & CEO | GGift | +11.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C, President & CEO | GGift | +11.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C, President & CEO | GGift | −11.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C, President & CEO | GGift | −11.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C, President & CEO | GGift | −7.50K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Case Gregory C, President & CEO | GGift | −7.50K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-18 | Stevens Lisa Chief Administrative Officer | GGift | −32.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C President & CEO | GGift | +3.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C, President & CEO | GGift | +3.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C, President & CEO | GGift | −3.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C, President & CEO | GGift | −3.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C, President & CEO | FTax | −1.00K | $325.96 | $327K | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Case Gregory C, President & CEO | MExercise | +2.36K | — | — | No | Form 4 ↗ |
| 2026-02-19 | 2026-02-17 | Zeidel Darren General Counsel | SSale | −5.04K | $325.79 | $1.64M | Yes (planned) | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Zeidel Darren General Counsel | FTax | −92.58 | $321.70 | $29.8K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Zeidel Darren, General Counsel | MExercise | +209.00 | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Zeidel Darren, General Counsel | FTax | −385.84 | $321.70 | $124K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Zeidel Darren, General Counsel | MExercise | +871.00 | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Stevens Lisa Chief Administrative Officer | FTax | −231.01 | $321.70 | $74.3K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Stevens Lisa, Chief Administrative Officer | MExercise | +478.00 | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Stevens Lisa, Chief Administrative Officer | FTax | −701.25 | $321.70 | $226K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Stevens Lisa, Chief Administrative Officer | MExercise | +1.45K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Simon Mindy F. Chief Operating Officer | FTax | −108.84 | $321.70 | $35.0K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Simon Mindy F., Chief Operating Officer | MExercise | +254.00 | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Reese Edmund Chief Financial Officer | FTax | −250.81 | $321.70 | $80.7K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-13 | Reese Edmund, Chief Financial Officer | MExercise | +598.00 | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Zeidel Darren General Counsel | FTax | −2.70K | $314.49 | $848K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Zeidel Darren, General Counsel | AAward | +7.13K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Stevens Lisa Chief Administrative Officer | FTax | −7.57K | $314.49 | $2.38M | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Stevens Lisa, Chief Administrative Officer | AAward | +15.9K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Simon Mindy F. Chief Operating Officer | FTax | −2.38K | $314.49 | $748K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Simon Mindy F., Chief Operating Officer | AAward | +5.55K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Marcell Andy Global CEO, Solution Lines | FTax | −6.58K | $314.49 | $2.07M | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Marcell Andy, Global CEO, Solution Lines | AAward | +12.9K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Goltermann Lori CEO, Regions & North America | FTax | −2.71K | $314.49 | $853K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Goltermann Lori, CEO, Regions & North America | AAward | +6.94K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Corona Anne Chief Commercial Officer | FTax | −1.40K | $314.49 | $442K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Corona Anne, Chief Commercial Officer | AAward | +3.17K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Case Gregory C President & CEO | FTax | −2.06K | $314.49 | $648K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Case Gregory C, President & CEO | AAward | +4.59K | — | — | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Case Gregory C, President & CEO | FTax | −32.2K | $314.49 | $10.1M | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-12 | Case Gregory C, President & CEO | AAward | +71.9K | — | — | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | KNIGHT LESTER B Director | PPurchase | +4.00K | $319.24 | $1.28M | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also AON’s full analysis or the market-wide insider trading feed. The tabs above jump to AON’s other SEC data.
Source: SEC Form 4 filings for AON, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.