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NORTHERN TRUST CORP

Bank

Position in WTM — White Mountains Insurance Group Ltd

CIK 73124 CHICAGO, IL

Position in WTM

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$34,041,893
-$592,631 QoQ
Shares Held
15,495
-7.0% QoQ
Ownership
0.649%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 99% Shared 1% None 0%

Common Shares in WTM Over Time

Shares Held

Position Value (USD)

Position in Insurance - Property & Casualty

Financial Services · as of Mar 31, 2026

NORTHERN TRUST CORP holds $5,513,605,786 across 43 Insurance - Property & Casualty names. WTM ranks #18 (0.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in WTM

Export CSV
25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $34,041,893 15,495
2025-12-31 $34,634,524 16,667
2025-09-30 $29,681,178 17,757
2025-06-30 $31,254,504 17,405
2025-03-31 $35,092,109 18,222
2024-12-31 $35,149,180 18,071
2024-09-30 $27,332,565 16,114
2024-06-30 $28,973,785 15,942
2024-03-31 $26,189,601 14,596
2023-12-31 $22,752,740 15,118
2023-09-30 $23,510,747 15,719
2023-06-30 $21,403,100 15,410
2023-03-31 $20,829,024 15,121
2022-12-31 $21,096,143 14,916
2022-09-30 $19,134,847 14,685
2022-06-30 $19,796,019 15,886
2022-03-31 $17,679,892 15,560
2021-12-31 $21,713,681 21,416
2021-09-30 $23,057,581 21,557
2021-06-30 $31,666,109 27,583
2021-03-31 $30,680,931 27,519
2020-12-31 $39,181,841 39,156
2020-09-30 $30,136,394 38,686
2020-06-30 $31,151,762 35,082
2020-03-31 $38,277,330 42,063