13F Insight
DOSSIER · 13F Holders · Q2 2026

AON PLC

1,326 institutions still hold AON PLC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G0403H108·1,326 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$40.3B
visible holders
Holders
1,326
filers reporting
Concentration
12.93%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

1,326 institutions reported AON PLC in Q2 2026. BlackRock, Inc. leads at 12.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$5.2B15.7M0.08%Q2 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$4.5B13.6M0.10%Q2 202603
JPMORGAN CHASE & CO
CIK 0000019617
$4.0B12.2M0.22%Q2 202604
Capital World Investors
CIK 0001422849
$3.9B11.7M0.46%Q2 202605
STATE STREET CORP
CIK 0000093751
$3.1B9.4M0.09%Q2 202606
DODGE & COX
CIK 0000200217
$2.9B8.6M1.49%Q2 202607
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$2.6B7.6M0.82%Q2 202608
Vanguard Portfolio Management
CIK 0002100121· Index
$2.4B7.2M0.11%Q2 202609
MORGAN STANLEY
CIK 0000895421
$2.1B6.2M0.11%Q2 202610
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$1.7B5.2M0.09%Q2 202611
Bank of New York Mellon Corp
CIK 0001390777
$1.1B3.2M0.17%Q2 202612
NORGES BANK
CIK 0001374170· Sovereign
$928M2.8M0.09%Q2 202613
Mitsubishi UFJ Asset Management Co., Ltd.
CIK 0001466546
$913M2.8M0.51%Q2 202614
Independent Franchise Partners LLP
CIK 0001483866
$878M2.6M5.76%Q2 202615
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$867M2.6M0.38%Q2 202616
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main
CIK 0001694217
$748M2.3M0.57%Q2 202617
Boston Partners
CIK 0001386060
$696M2.1M0.62%Q2 202618
NORTHERN TRUST CORP
CIK 0000073124· Index
$677M2.0M0.08%Q2 202619
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$623M1.9M0.22%Q2 202620
WCM INVESTMENT MANAGEMENT, LLC
CIK 0001061186
$614M1.9M1.11%Q2 2026
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