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BERKLEY W R CORP

Position in QSEA — Quartzsea Acquisition Corp

CIK 11544 Greenwich, CT

Position in QSEA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$11,510,878
+$7,305,335 QoQ
Shares Held
1,094,190
+169.8% QoQ
Ownership
10.8%
of shares outstanding
% of Portfolio
0.59%
of 13F equity value
Holder Rank
#1
of 21 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in QSEA Over Time

Shares Held

Position Value (USD)

Position in Shell Companies

Financial Services · as of Jun 30, 2026

BERKLEY W R CORP holds $998,287,435 across 236 Shell Companies names. QSEA ranks #18 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1
3,265,181 $37,288,367
3
2,211,677 $22,846,623

All Filings in QSEA

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $11,510,878 1,094,190
2026-06-30 $9,468,000 900,000
2026-03-31 $4,205,543 405,549
2025-12-31 $3,249,927 317,686
2025-09-30 $2,923,548 288,603
2025-06-30 $1,499,095 149,238
2025-03-31 QSEAU $1,502,274 148,740