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BERKLEY W R CORP

Position in MBVI — M3-Brigade Acquisition VI Corp.

CIK 11544 Greenwich, CT

Position in MBVI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,453,931
+$19,379 QoQ
Shares Held
242,244
-11.4% QoQ
Ownership
0.562%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#38
of 69 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MBVI 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. MBVI ranks #132 (0.2% 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 MBVI

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6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,453,931 242,244
2026-03-31 MBVIW 31,172
2026-03-31 $2,434,552 242,244
2025-12-31 MBVIW 31,172
2025-12-31 $2,422,440 242,244
2025-09-30 MBVIU $2,451,519 242,245