Mawer Investment Management Ltd.

Position in AON — Aon plc

CIK 1538449 CALGARY, A0

Back to AON Full portfolio

Position in AON

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$388,615,964

-$23,602,500 QoQ

Shares Held

1,171,624

-8.3% QoQ

Ownership

0.552%

of shares outstanding

% of Portfolio

2.72%

of 13F equity value

Holder Rank

#32

of 1,247 holders

Holding Since

Jun 2020

25 quarters on record

Voting authority Sole 98% Shared 0% None 2%

Common Shares in AON Over Time

Shares Held

Position Value (USD)

Position in Insurance Brokers

Financial Services · as of Jun 30, 2026

Mawer Investment Management Ltd. holds $817,568,473 across 3 Insurance Brokers names. AON ranks #1 (47.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AON	Aon plc This page	1,171,624	$388,615,964
2	MRSH	Marsh & Mclennan Companies, Inc.	1,871,159	$311,866,070
3	AJG	Arthur J. Gallagher & Co.	510,025	$117,086,439

All Filings in AON

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$388,615,964	1,171,624	-8.3%	Shares	Sole	2026-08-07
2026-03-31	$412,218,464	1,277,088	-13.6%	Shares	Sole	2026-05-06
2025-12-31	$521,448,305	1,477,693	-40.8%	Shares	Sole	2026-02-10
2025-09-30	$890,768,575	2,498,089	-15.9%	Shares	Other	2025-11-04
2025-06-30	$1,060,124,113	2,971,533	-9.2%	Shares	Other	2025-08-07
2025-03-31	$1,306,450,647	3,273,574	-16.1%	Shares	Other	2025-05-07
2024-12-31	$1,401,703,428	3,902,727	-8.6%	Shares	Other	2025-02-12
2024-09-30	$1,477,192,195	4,269,465	-3.1%	Shares	Other	2024-11-07
2024-06-30	$1,293,448,892	4,405,780	+1.2%	Shares	Other	2024-08-07
2024-03-31	$1,452,910,423	4,353,681	-1.6%	Shares	Other	2024-05-06
2023-12-31	$1,287,182,041	4,423,002	-1.7%	Shares	Other	2024-02-07
2023-09-30	$1,459,109,636	4,500,369	-2.0%	Shares	Other	2023-11-06
2023-06-30	$1,585,537,429	4,593,098	-6.7%	Shares	Other	2023-08-09
2023-03-31	$1,552,892,161	4,925,282	-4.1%	Shares	Other	2023-05-05
2022-12-31	$1,540,973,385	5,134,182	-2.4%	Shares	Other	2023-02-08
2022-09-30	$1,409,299,964	5,261,134	-2.1%	Shares	Other	2022-11-09
2022-06-30	$1,448,632,504	5,371,672	-3.4%	Shares	Other	2022-08-09
2022-03-31	$1,809,929,691	5,558,240	-9.7%	Shares	Other	2022-05-06
2021-12-31	$1,850,427,696	6,156,600	+1.1%	Shares	Other	2022-02-09
2021-09-30	$1,740,430,746	6,090,320	+0.7%	Shares	Sole	2021-11-10
2021-06-30	$1,444,667,997	6,050,712	+3.7%	Shares	Sole	2021-08-11
2021-03-31	$1,343,113,871	5,836,834	+4.1%	Shares	Other	2021-05-14
2020-12-31	$1,184,353,845	5,605,878	+3.5%	Shares	Other	2021-02-09
2020-09-30	$1,117,428,076	5,416,520	-0.5%	Shares	Other	2020-11-13
2020-06-30	$1,048,000,928	5,441,334	—	Shares	Other	2020-08-10
No filing history on record for this holder in this stock.