🕵️ AON PLC ($AON)
SEC insider & ownership activity, last 12 months · CIK 315293 · every row links its SEC filing
Over the last 12 months insiders sold $7.0M against $1.3M of open-market buying. Zeidel Darren sold $7.0M through a program of 6 sale notices averaging $1.3M (Nov–Jul). 2 planned sales are pending, the largest $1.9M (Goltermann Lori). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $1.3M (1 lots) · 1 seller, $7.0M (8 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Zeidel Darren | 0 | – | 8 | $7.0M | Jul 17, 2026 |
| Lester B. Knight | 1 | $1.3M | 0 | – | Feb 10, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.3% | 13G | Apr 29, 2026 | filing ↗ | |
| JPMorgan Chase & Co | 5.6% | Class A | 13G | Jul 16, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Zeidel Darren | $718K | Jul 28, 2026 | filing ↗ |
| Zeidel Darren | $726K | Jul 17, 2026 | filing ↗ |
| Zeidel Darren | $216K | Jul 7, 2026 | filing ↗ |
| Goltermann Lori | $1.9M | Jun 4, 2026 | filing ↗ |
| Zeidel Darren | $1.4M | Feb 26, 2026 | filing ↗ |
| Zeidel Darren | $1.6M | Feb 17, 2026 | filing ↗ |
| Neller Michael | $245K | Nov 25, 2025 | filing ↗ |
| Zeidel Darren | $3.0M | Nov 5, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 26, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 26, 2026 | filing ↗ |
| Other events (8.01) | Jun 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 26, 2026 | filing ↗ |
| Earnings (2.02) | May 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 1, 2026 | filing ↗ |
| Earnings (2.02) | Jan 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 6, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 31, 2025 | filing ↗ |
| Earnings (2.02) | Oct 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 31, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 30, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 3, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 1, 2025 | filing ↗ |