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MARSHALL WACE, LLP

Position in AON — Aon plc

CIK 1318757 LONDON, X0

Position in AON

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$15,450,783
+$2,968,007 QoQ
Shares Held
46,582
+31.7% QoQ
Ownership
0.022%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#212
of 1,235 holders
Holding Since
Jun 2020
14 quarters on record
Voting authority Sole 6% Shared 94% None 0%

Common Shares in AON Over Time

Shares Held

Position Value (USD)

Derivatives in AON

reported options exposure · as of Sep 30, 2025
CallValue
$71,316
CallShares
200
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Insurance Brokers

Financial Services · as of Jun 30, 2026

MARSHALL WACE, LLP holds $265,115,717 across 15 Insurance Brokers names. AON ranks #3 (5.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 AON
Aon plc
This page
46,582 $15,450,783

All Filings in AON

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $15,450,783 46,582
2025-12-31 $12,482,776 35,374
2025-09-30 $71,316 200
2025-09-30 $12,445,354 34,902
2025-06-30 $86,199,994 241,619
2025-03-31 $12,144,707 30,431
2024-12-31 $81,341,837 226,478
2024-09-30 $6,844,720 19,783
2024-06-30 $4,259,845 14,510
2022-12-31 $5,077,468 16,917
2021-12-31 $24,418,396 81,243
2021-09-30 $370,929 1,298
2021-06-30 $83,994,335 351,794
2021-03-31 $79,364,708 344,899
2020-06-30 $3,164,418 16,430