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Equibles

JANE STREET GROUP, LLC

Position in WTM — White Mountains Insurance Group Ltd

CIK 1595888 NEW YORK, NY
Back to WTM Full portfolio

Position in WTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$35,716,213
+$5,380,591 QoQ
Shares Held
17,226
+24.8% QoQ
Ownership
0.722%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#29
of 354 holders
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WTM Over Time

Shares Held

Position Value (USD)

Position in Insurance - Property & Casualty

Financial Services · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $541,442,175 across 27 Insurance - Property & Casualty names. WTM ranks #5 (6.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TRV
Travelers Companies, Inc.
 449,823 $148,495,568
2 MKL
Markel Group Inc.
 65,269 $127,471,009
3 WRB
Berkley W R Corp
 875,704 $61,763,402
4 LMND
Lemonade, Inc.
 565,854 $36,808,802
5 WTM
White Mountains Insurance Group Ltd
This page 		17,226 $35,716,213
6 SLDE
Slide Insurance Holdings, Inc.
 1,392,301 $26,968,870
7 AIZ
Assurant, Inc.
 89,564 $24,050,620
8 HCI
HCI Group, Inc.
 79,576 $13,945,693

All Filings in WTM

Export CSV
23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $35,716,213 17,226
2026-03-31 $30,335,622 13,808
2025-12-31 $3,547,197 1,707
2025-09-30 $8,056,726 4,820
2025-06-30 $10,901,815 6,071
2025-03-31 $1,113,117 578
2024-12-31 $558,232 287
2024-09-30 $2,216,932 1,307
2024-06-30 $1,684,775 927
2024-03-31 $999,424 557
2023-09-30 $360,460 241
2023-06-30 $345,838 249
2023-03-31 $969,752 704
2022-12-31 $1,756,597 1,242
2022-09-30 $381,784 293
2022-06-30 $1,183,823 950
2022-03-31 $1,152,147 1,014
2021-09-30 $1,141,273 1,067
2021-06-30 $244,530 213
2020-12-31 $341,225 341
2020-09-30 $1,554,884 1,996
2020-06-30 $960,783 1,082
2020-03-31 $674,310 741