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Equibles

WELLINGTON MANAGEMENT GROUP LLP

Position in WTM — White Mountains Insurance Group Ltd

CIK 902219 Boston, MA
Back to WTM Full portfolio

Position in WTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$30,130,501
-$2,569,049 QoQ
Shares Held
14,532
-2.4% QoQ
Ownership
0.609%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#35
of 354 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 70% None 30%

Common Shares in WTM Over Time

Shares Held

Position Value (USD)

Position in Insurance - Property & Casualty

Financial Services · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $3,865,671,860 across 16 Insurance - Property & Casualty names. WTM ranks #7 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CB
Chubb Ltd
 6,195,189 $2,110,948,696
2 PGR
Progressive Corp/Oh/
 5,729,113 $1,251,524,732
3 MKL
Markel Group Inc.
 102,408 $200,003,845
4 AIZ
Assurant, Inc.
 345,193 $92,694,676
5 SIGI
Selective Insurance Group Inc
 795,272 $77,149,334
6 RLI
Rli Corp
 634,602 $37,485,939
7 WTM
White Mountains Insurance Group Ltd
This page 		14,532 $30,130,501
8 PRCH
Porch Group, Inc.
 1,297,050 $19,507,632

All Filings in WTM

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $30,130,501 14,532
2026-03-31 $32,699,550 14,884
2025-12-31 $33,098,861 15,928
2025-09-30 $32,111,569 19,211
2025-06-30 $44,266,293 24,651
2025-03-31 $48,988,755 25,438
2024-12-31 $97,109,069 49,926
2024-09-30 $102,916,932 60,675
2024-06-30 $126,838,016 69,789
2024-03-31 $109,463,064 61,006
2023-12-31 $101,409,077 67,381
2023-09-30 $105,926,252 70,821
2023-06-30 $110,605,846 79,635
2023-03-31 $97,421,601 70,724
2022-12-31 $117,918,347 83,374
2022-09-30 $117,284,829 90,010
2022-06-30 $231,902,299 186,098
2022-03-31 $242,044,115 213,022
2021-12-31 $224,638,666 221,559
2021-09-30 $239,442,893 223,860
2021-06-30 $271,701,960 236,668
2021-03-31 $263,077,375 235,965
2020-12-31 $250,885,473 250,720
2020-09-30 $187,624,487 240,853
2020-06-30 $224,665,286 253,010
2020-03-31 $221,954,460 243,906