Aon plc Insider Trading Activity
Every SEC Form 4 insider transaction reported for Aon plc (AON), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are AON insiders buying or selling?
In the last 12 months, Aon plc insiders reported 2 open-market purchases ($7.8M) and 6 sales ($7.8M) — net buying of $75.8K. Since February 2018, Trabud has recorded 85 Form 4 filings for AON: 14 buys ($42.7M) and 71 sells ($156.7M).
Source: SEC EDGAR Form 4
Key Statistics (February 2018 – Sep 4, 2026)
Total Form 4 filings
85
SEC EDGAR
Insider filers
18
Insider buys (14)
$42.7M
Insider sells (71)
$156.7M
Insider sentiment
Net sellingNet insider flow of $113.9M in net selling since February 2018, and $75.8K in net buying over the last 12 months. 1 insider buy in the last 90 days.
Recent AON insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Lester B Knight | Director | Purchase | 20.0K | $327.48 | $6.5M | SEC ↗ |
| Jul 30, 2026 | Darren Zeidel | General Counsel | Sale | 1.9K | $377.76 | $717.8K | SEC ↗ |
| Jul 21, 2026 | Darren Zeidel | General Counsel | Sale | 1.9K | $372.05 | $725.5K | SEC ↗ |
| Jul 9, 2026 | Darren Zeidel | General Counsel | Sale | 600 | $360.00 | $216.0K | SEC ↗ |
| Mar 2, 2026 | Darren Zeidel | General Counsel | Sale | 4.3K | $329.72 | $1.4M | SEC ↗ |
| Feb 19, 2026 | Darren Zeidel | General Counsel | Sale | 5.0K | $325.79 | $1.6M | SEC ↗ |
| Feb 12, 2026 | Lester B Knight | Director | Purchase | 4.0K | $319.24 | $1.3M | SEC ↗ |
| Nov 7, 2025 | Darren Zeidel | General Counsel | Sale | 8.8K | $344.52 | $3.0M | SEC ↗ |
| Dec 2, 2024 | Mindy F. Simon | Chief Operating Officer | Sale | 650 | $394.34 | $256.3K | SEC ↗ |
| Nov 29, 2024 | Lisa Stevens | Chief Administrative Officer | Sale | 1.3K | $387.68 | $494.3K | SEC ↗ |
| Aug 29, 2024 | Byron Spruell | Director | Purchase | 725 | $340.08 | $246.6K | SEC ↗ |
| Aug 14, 2024 | Lisa Stevens | Chief Administrative Officer | Sale | 400 | $328.95 | $131.6K | SEC ↗ |
| Aug 14, 2024 | Darren Zeidel | General Counsel | Sale | 950 | $329.15 | $312.7K | SEC ↗ |
| Jul 30, 2024 | Darren Zeidel | General Counsel | Sale | 6.6K | $310.00 | $2.0M | SEC ↗ |
| May 7, 2024 | Lester B Knight | Director | Purchase | 10.0K | $276.61 | $2.8M | SEC ↗ |
| Mar 8, 2024 | Lisa Stevens | Chief People Officer | Sale | 315.17 | $316.31 | $99.7K | SEC ↗ |
| Feb 26, 2024 | Lisa Stevens | Chief People Officer | Sale | 13.0K | $315.26 | $4.1M | SEC ↗ |
| Feb 20, 2024 | Christa Davies | Chief Financial Officer | Sale | 40.2K | $313.29 | $12.6M | SEC ↗ |
| Feb 20, 2024 | Michael Neller | Principal Accounting Officer | Sale | 750 | $312.00 | $234.0K | SEC ↗ |
| Feb 13, 2024 | Christa Davies | Chief Financial Officer | Sale | 20.6K | $311.40 | $6.4M | SEC ↗ |
| Aug 24, 2023 | Byron Spruell | Director | Purchase | 800 | $324.58 | $259.7K | SEC ↗ |
| Feb 23, 2023 | Christa Davies | Chief Financial Officer | Sale | 71.8K | $308.70 | $22.2M | SEC ↗ |
| Feb 22, 2023 | Michael Neller | Principal Accounting Officer | Sale | 1.0K | $311.59 | $311.6K | SEC ↗ |
| Feb 15, 2023 | Christa Davies | Chief Financial Officer | Sale | 617 | $318.36 | $196.4K | SEC ↗ |
| Aug 25, 2022 | Byron Spruell | Director | Purchase | 400 | $291.72 | $116.7K | SEC ↗ |
Showing the 25 most recent of 85 Form 4 filings for Aon plc.
Most active AON insiders
- Christa Davies14 filings
- Darren Zeidel12 filings
- Michael Neller12 filings
- Lester B Knight8 filings
- Peter M Lieb6 filings
Ask anything about AON insider activity
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Open the AI agentAON insider trading FAQ
Are Aon plc insiders buying or selling?
In the last 12 months, Aon plc insiders reported 2 open-market purchases ($7.8M) and 6 sales ($7.8M) — net buying of $75.8K. Since February 2018, Trabud has recorded 85 Form 4 filings for AON: 14 buys ($42.7M) and 71 sells ($156.7M). Over the full record that is net selling of $113.9M.
How many insiders trade AON stock?
18 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Aon plc. The most recent filing was accepted on Sep 4, 2026.
Where does Trabud get AON insider trading data?
All AON insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.