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BROWN BROTHERS HARRIMAN & CO

Position in AON — Aon plc

CIK 14661 NEW YORK, NY

Position in AON

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$2,122,924
+$136,210 QoQ
Shares Held
6,577
+16.8% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
24 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in AON Over Time

Shares Held

Position Value (USD)

Position in Insurance Brokers

Financial Services · as of Mar 31, 2026

BROWN BROTHERS HARRIMAN & CO holds $292,840,450 across 8 Insurance Brokers names. AON ranks #4 (0.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 AON
Aon plc
This page
6,577 $2,122,924

All Filings in AON

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24 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,122,924 6,577
2025-12-31 $1,986,714 5,630
2025-09-30 $1,646,329 4,617
2025-06-30 $1,474,489 4,133
2025-03-31 $1,583,190 3,967
2024-12-31 $1,442,386 4,016
2024-09-30 $5,242,094 15,151
2024-06-30 $6,234,171 21,235
2024-03-31 $1,397,619 4,188
2023-12-31 $1,058,439 3,637
2023-09-30 $1,189,238 3,668
2023-06-30 $1,119,483 3,243
2023-03-31 $1,064,419 3,376
2022-12-31 $1,017,174 3,389
2022-09-30 $972,635 3,631
2022-06-30 $1,005,636 3,729
2022-03-31 $1,479,662 4,544
2021-12-31 $1,297,818 4,318
2021-09-30 $1,564,019 5,473
2021-06-30 $1,294,795 5,423
2021-03-31 $1,245,815 5,414
2020-12-31 $1,380,438 6,534
2020-09-30 $1,279,885 6,204
2020-06-30 $1,212,802 6,297