FIRST MANHATTAN CO. LLC.

Position in AON — Aon plc

CIK 728083 NEW YORK, NY

Position in AON

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$7,151,899

-$294,958 QoQ

Shares Held

21,562

-6.5% QoQ

Ownership

0.010%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#315

of 1,246 holders

Holding Since

Jun 2020

25 quarters on record

Voting authority Sole 0% Shared 100% None 0%

Financial Services · as of Jun 30, 2026

FIRST MANHATTAN CO. LLC. holds $15,259,103 across 4 Insurance Brokers names. AON ranks #1 (46.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AON	Aon plc This page	21,562	$7,151,899
2	AJG	Arthur J. Gallagher & Co.	17,309	$3,973,627
3	MRSH	Marsh & Mclennan Companies, Inc.	21,536	$3,589,405
4	WTW	Willis Towers Watson PLC	2,082	$544,172

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$7,151,899	21,562	-6.5%	Shares	Sole	2026-08-14
2026-03-31	$7,446,857	23,071	-9.4%	Shares	Sole	2026-05-15
2025-12-31	$8,982,913	25,456	-5.0%	Shares	Sole	2026-02-17
2025-09-30	$9,549,925	26,782	-5.5%	Shares	Sole	2025-11-14
2025-06-30	$10,111,291	28,342	-0.8%	Shares	Sole	2025-08-14
2025-03-31	$11,406,391	28,581	-1.3%	Shares	Sole	2025-05-15
2024-12-31	$10,405,583	28,972	-0.2%	Shares	Sole	2025-02-14
2024-09-30	$10,041,321	29,022	-3.7%	Shares	Sole	2024-11-14
2024-06-30	$8,844,978	30,128	+1.7%	Shares	Sole	2024-08-15
2024-03-31	$9,890,793	29,638	-0.7%	Shares	Sole	2024-05-15
2023-12-31	$8,684,036	29,840	+0.1%	Shares	Sole	2024-02-13
2023-09-30	$9,665,322	29,811	-8.4%	Shares	Sole	2023-11-14
2023-06-30	$11,240,402	32,562	-2.3%	Shares	Sole	2023-08-14
2023-03-31	$10,512,399	33,342	-1.0%	Shares	Sole	2023-05-15
2022-12-31	$10,110,215	33,685	-2.7%	Shares	Sole	2023-02-14
2022-09-30	$9,277,141	34,633	-2.7%	Shares	Sole	2022-11-14
2022-06-30	$9,598,720	35,593	-0.9%	Shares	Sole	2022-08-15
2022-03-31	$11,695,978	35,918	+159.3%	Shares	Sole	2022-05-16
2021-12-31	$4,163,056	13,851	-10.6%	Shares	Sole	2022-02-14
2021-09-30	$4,428,006	15,495	-56.7%	Shares	Sole	2021-11-15
2021-06-30	$8,549,995	35,810	-1.9%	Shares	Sole	2021-08-16
2021-03-31	$8,401,546	36,511	-0.2%	Shares	Sole	2021-05-14
2020-12-31	$7,731,636	36,596	+1.6%	Shares	Sole	2021-02-16
2020-09-30	$7,428,037	36,006	+4.0%	Shares	Sole	2020-11-12
2020-06-30	$6,668,775	34,625	—	Shares	Sole	2020-08-14
No filing history on record for this holder in this stock.