Aon plc AON NYSE

NYSE • Financial Services • Insurance - Brokers • IE • USD

SharesGrow Score

71/100

5/7 Pass

SharesGrow Intrinsic Value

Aon plc (AON) has 20 known insider and institutional holders on record. The largest holder is Case Gregory C with 936,252 shares. Other notable holders include Davies Christa and KNIGHT LESTER B.

Over the last 12 months, insiders have made 46 transactions in AON stock — 10 buys (valued at $1.28M) and 3 sells (valued at $3.48M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.

AON Insider Ownership

Top Holder

Case Gregory C

936,252 shares

Buys (12 mo)

$1.28M value

Sells (12 mo)

$3.48M value

12-Month Transaction Activity

Buy 22%

Sell 7%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Case Gregory C	President & CEO	936,252	2026-02-17	100%
2	Davies Christa	Chief Financial Officer	188,140	2024-02-20	20%
3	Knight Lester B	Director	143,000	2026-02-12	15%
4	O'connor Michael J	Co-president	123,885	2020-02-20	13%
5	Bruno John G	Other: Section 16 Officer	75,114	2021-02-16	8%
6	Weitz Andy	Chief Marketing Officer	40,961	2024-02-20	4%
7	Conti Fulvio	Director	30,862	2024-06-24	3%
8	Notebaert Richard C	Director	29,176	2025-06-30	3%
9	Francis Cheryl A	Director	28,704	2025-06-30	3%
10	Myers Richard B	Director	27,618	2021-06-29	3%
11	Woo Carolyn Y	Director	27,278	2023-06-20	3%
12	Stevens Lisa	Chief Administrative Officer	26,321	2026-02-19	3%
13	Santona Gloria	Director	17,736	2025-11-14	2%
14	Zeidel Darren	General Counsel	15,954	2026-03-02	2%
15	Campbell Jeffrey C	Director	12,031	2025-06-30	1%
16	Cai Jin-yong	Director	7,465	2025-06-30	1%
17	Spruell Byron	Director	5,787	2025-06-30	1%
18	Reese Edmund	Chief Financial Officer	2,337	2026-02-17	0%
19	Andersen Eric	President	2,242	2025-02-18	0%
20	Marcell Andy	Global CEO, Solution Lines	2,226	2026-02-17	0%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-03-13	Marcell Andy	Global CEO, Solution Lines	Option Exercise (Sell)	1,166	-	-
2026-03-13	Goltermann Lori	CEO, Regions & North America	Option Exercise (Sell)	228	-	-
2026-03-13	Corona Anne	Chief Commercial Officer	Option Exercise (Sell)	193	-	-
2026-02-26	Zeidel Darren	General Counsel	Informative Sell	4,300	$329.72	$1.42M
2026-02-19	Case Gregory C	President & CEO	Gift (Given)	11,206	-	-
2026-02-18	Stevens Lisa	Chief Administrative Officer	Gift (Given)	32	-	-
2026-02-17	Zeidel Darren	General Counsel	Informative Sell	5,040	$325.79	$1.64M
2026-02-17	Case Gregory C	President & CEO	Option Exercise (Sell)	2,357	-	-
2026-02-12	Marcell Andy	Global CEO, Solution Lines	RSU Award	2,226	-	-
2026-02-12	Goltermann Lori	CEO, Regions & North America	RSU Award	1,113	-	-
2026-02-12	Corona Anne	Chief Commercial Officer	RSU Award	835	-	-
2026-02-13	Simon Mindy F.	Chief Operating Officer	Option Exercise (Sell)	254	-	-
2026-02-12	Simon Mindy F.	Chief Operating Officer	RSU Award	1,113	-	-
2026-02-13	Reese Edmund	Chief Financial Officer	Option Exercise (Sell)	598	-	-
2026-02-12	Reese Edmund	Chief Financial Officer	RSU Award	2,337	-	-
2026-02-13	Stevens Lisa	Chief Administrative Officer	Option Exercise (Sell)	1,451	-	-
2026-02-12	Stevens Lisa	Chief Administrative Officer	RSU Award	2,059	-	-
2026-02-13	Zeidel Darren	General Counsel	Option Exercise (Sell)	871	-	-
2026-02-12	Zeidel Darren	General Counsel	RSU Award	1,113	-	-
2026-02-12	Case Gregory C	President & CEO	Tax Withholding of RSU	32,246	$314.49	$10.14M
2026-02-10	Knight Lester B	Director	Informative Buy	4,000	$319.24	$1.28M
2025-12-05	Knight Lester B	Director	Gift (Given)	7,878	-	-
2025-11-21	Marcell Andy	Global CEO, Solution Lines	Option Exercise (Sell)	86	-	-
2025-11-21	Goltermann Lori	CEO, Regions & North America	Option Exercise (Sell)	156	-	-
2025-11-21	Corona Anne	Chief Commercial Officer	Option Exercise (Sell)	132	-	-