Aon plc (AON) Insider Ownership

Historic Insider Ownership Trends

Data spanning the past 90 days through February 19, 2026 reveals that Aon's three principal insider shareholders consist of President & Ceo Gregory C Case (1.10Mn shares), President Eric Andersen (177.03K shares), Chief Financial Officer Christa Davies (161.71K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Gregory C Case President & Ceo 1,102,745 17 Feb, 2026
Eric Andersen President 177,033 18 Feb, 2025
Christa Davies Chief Financial Officer 161,706 20 Feb, 2024
Lester B Knight 146,739 30 Jun, 2025
Andy Weitz Chief Marketing Officer 41,524 20 Feb, 2024
Gloria Santona 39,608 14 Nov, 2025
Fulvio Conti 30,862 24 Jun, 2024
Richard C Notebaert 29,176 30 Jun, 2025
Cheryl A Francis 28,704 30 Jun, 2025
Richard B Myers 27,618 29 Jun, 2021
Carolyn Y Woo 27,278 20 Jun, 2023
Lisa Stevens Chief Administrative Officer 26,353 17 Feb, 2026
Darren Zeidel General Counsel 25,294 17 Feb, 2026
J Michael Losh 12,375 22 Jun, 2022
Jeffrey C Campbell 12,031 30 Jun, 2025
Michael Neller Principal Accounting Officer 10,845 25 Mar, 2025
Andy Marcell Global Ceo And Solution Lines 7,983 17 Feb, 2026
Jin-Yong Cai 7,465 30 Jun, 2025
Lori Goltermann Ceo And Regions & North America 6,503 17 Feb, 2026
Mindy F. Simon Chief Operating Officer 6,496 17 Feb, 2026
Byron Spruell 5,787 30 Jun, 2025
James Platt Chief Operating Officer 4,590 17 Mar, 2022
Anne Corona Chief Commercial Officer 3,990 17 Feb, 2026
Edmund Reese Chief Financial Officer 2,124 17 Feb, 2026
Adriana Karaboutis 2,016 30 Jun, 2025
Jillian Slyfield Chief Innovation Officer 1,910 19 Sep, 2024
Sarah G Smith 1,524 30 Jun, 2025
Jose Antonio Alvarez 867 30 Jun, 2025
James G. Stavridis 788 30 Jun, 2025
Jo Ann Jenkins 284 30 Sep, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
13 Feb, 2026 Darren Zeidel Class A Ordinary Stock D 93 $321.70 25,294 D F
13 Feb, 2026 Darren Zeidel Class A Ordinary Stock A 871 - 25,564 D M
13 Feb, 2026 Darren Zeidel Class A Ordinary Stock D 386 $321.70 25,178 D F
13 Feb, 2026 Darren Zeidel Class A Ordinary Stock A 209 - 25,387 D M
13 Feb, 2026 Lisa Stevens Class A Ordinary Stock D 701 $321.70 26,107 D F
13 Feb, 2026 Lisa Stevens Class A Ordinary Stock A 478 - 26,585 D M
13 Feb, 2026 Lisa Stevens Class A Ordinary Stock A 1,451 - 26,808 D M
13 Feb, 2026 Lisa Stevens Class A Ordinary Stock D 231 $321.70 26,353 D F
13 Feb, 2026 Edmund Reese Class A Ordinary Stock D 251 $321.70 2,124 D F
13 Feb, 2026 Edmund Reese Class A Ordinary Stock A 598 - 2,375 D M
13 Feb, 2026 Mindy F. Simon Class A Ordinary Stock D 109 $321.70 6,496 D F
13 Feb, 2026 Mindy F. Simon Class A Ordinary Stock A 254 - 6,605 D M
12 Feb, 2026 Gregory C Case Class A Ordinary Stock A 4,589 - 940,841 D A
12 Feb, 2026 Gregory C Case Class A Ordinary Stock A 71,868 - 968,498 D A
12 Feb, 2026 Gregory C Case Class A Ordinary Stock D 2,059 $314.49 938,782 D F
12 Feb, 2026 Gregory C Case Class A Ordinary Stock D 32,246 $314.49 936,252 D F
12 Feb, 2026 Darren Zeidel Class A Ordinary Stock A 7,135 - 27,388 D A
12 Feb, 2026 Darren Zeidel Class A Ordinary Stock D 2,696 $314.49 24,693 D F
12 Feb, 2026 Lisa Stevens Class A Ordinary Stock D 7,568 $314.49 25,357 D F
12 Feb, 2026 Lisa Stevens Class A Ordinary Stock A 15,856 - 32,925 D A