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JANE STREET GROUP, LLC

Position in MSB — Mesabi Trust

CIK 1595888 NEW YORK, NY

Position in MSB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2021
6 quarters on record

Common Shares in MSB Over Time

Shares Held

Position Value (USD)

Derivatives in MSB

reported options exposure · as of Jun 30, 2026
CallValue
$316,250
CallShares
12,500
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Steel

Basic Materials · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $267,436,707 across 11 Steel names.

# Ticker Company Shares Value (USD) Open

All Filings in MSB

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $316,250 12,500
2025-06-30 $275,540 11,500
2025-03-31 $353,600 13,000
2024-03-31 $323,715 18,289
2022-03-31 $370,907 13,923
2021-03-31 $202,227 6,723