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CHICAGO TRUST Co NA

Bank

Position in AON — Aon plc

CIK 1601539 GRAYSLAKE, IL

Position in AON

as of Jun 30, 2026 · filed Jul 16, 2026
Position Value
$616,611
+$60,139 QoQ
Shares Held
1,859
+7.8% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
#699
of 1,247 holders
Holding Since
Jun 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AON Over Time

Shares Held

Position Value (USD)

Position in Insurance Brokers

Financial Services · as of Jun 30, 2026

CHICAGO TRUST Co NA holds $616,611 across 1 Insurance Brokers name. AON ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AON
Aon plc
This page
1,859 $616,611

All Filings in AON

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25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $616,611 1,859
2026-03-31 $556,472 1,724
2025-12-31 $608,364 1,724
2025-09-30 $621,874 1,744
2025-06-30 $636,458 1,784
2025-03-31 $719,957 1,804
2024-12-31 $739,509 2,059
2024-09-30 $712,392 2,059
2024-06-30 $604,480 2,059
2024-03-31 $770,225 2,308
2023-12-31 $1,168,735 4,016
2023-09-30 $1,351,996 4,170
2023-06-30 $1,307,271 3,787
2023-03-31 $1,345,341 4,267
2022-12-31 $1,230,573 4,100
2022-09-30 $1,088,891 4,065
2022-06-30 $1,154,499 4,281
2022-03-31 $1,394,021 4,281
2021-12-31 $1,287,899 4,285
2021-09-30 $1,121,360 3,924
2021-06-30 $966,739 4,049
2021-03-31 $464,361 2,018
2020-12-31 $426,976 2,021
2020-09-30 $416,313 2,018
2020-06-30 $417,364 2,167