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CITADEL ADVISORS LLC

Position in WTM — White Mountains Insurance Group Ltd

CIK 1423053 MIAMI, FL

Position in WTM

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$14,795,709
+$9,077,023 QoQ
Shares Held
7,136
+174.1% QoQ
Ownership
0.299%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#52
of 354 holders
Holding Since
Mar 2020
18 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

CITADEL ADVISORS LLC holds $1,276,594,728 across 38 Insurance - Property & Casualty names. WTM ranks #16 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in WTM

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18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,795,709 7,136
2026-03-31 $5,718,686 2,603
2025-12-31 $2,479,089 1,193
2025-09-30 $469,697 281
2025-06-30 $2,102,788 1,171
2025-03-31 $2,264,752 1,176
2023-12-31 $498,158 331
2023-03-31 $953,223 692
2022-09-30 $2,192,982 1,683
2022-06-30 $4,904,767 3,936
2022-03-31 $7,615,080 6,702
2021-12-31 $8,491,411 8,375
2021-09-30 $9,012,533 8,426
2021-06-30 $10,235,835 8,916
2021-03-31 $13,762,325 12,344
2020-12-31 $6,621,367 6,617
2020-09-30 $9,325,409 11,971
2020-03-31 $4,221,490 4,639