Mesabi Trust
US ˙ NYSE ˙ US5906721015

SecurityMSB / Mesabi Trust
InstitutionPecaut & Co.
Latest Disclosed Ownership33,963 shares
Latest Disclosed Value $ 1,067,457
Pecaut & Co. ownership in MSB / Mesabi Trust

On May 11, 2026 - Pecaut & Co. filed a 13F-HR form disclosing ownership of 33,963 shares of Mesabi Trust (US:MSB) valued at $1,069,834 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 33,963 shares of Mesabi Trust. This represents a change in shares of 0.00% during the quarter. The current value of the position is $866,736 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F MESABI TR CTF BEN INT 590672101 33,963 0 0.00 1,067 -18.36 0.3466
2026-02-10 2025-12-31 13F MESABI TR CTF BEN INT 590672101 33,963 0 0.00 1,308 33.37 0.4220
2025-11-03 2025-09-30 13F MESABI TR CTF BEN INT 590672101 33,963 23 0.07 981 20.54 0.3151
2025-08-14 2025-06-30 13F MESABI TR CTF BEN INT 590672101 33,940 131 0.39 813 -10.86 0.2700
2025-05-02 2025-03-31 13F MESABI TR CTF BEN INT 590672101 33,809 966 2.94 912 -0.55 0.3104
2025-02-11 2024-12-31 13F MESABI TR CTF BEN INT 590672101 32,843 75 0.23 918 24.42 0.3167
2024-11-06 2024-09-30 13F MESABI TR CTF BEN INT 590672101 32,768 11,068 51.00 738 98.65 0.2609
2024-08-07 2024-06-30 13F MESABI TR CTF BEN INT 590672101 21,700 4,000 22.60 371 18.91 0.1404
2024-05-07 2024-03-31 13F MESABI TR CTF BEN INT 590672101 17,700 4,000 29.20 312 11.83 0.1163
2024-02-07 2023-12-31 13F MESABI TR CTF BEN INT 590672101 13,700 13,700 280 0.1123
2022-02-10 2021-12-31 13F MESABI TR CTF BEN INT 590672101 0 -7,700 -100.00 0 -100.00
2021-11-05 2021-09-30 13F MESABI TR CTF BEN INT 590672101 7,700 0 0.00 229 -16.12 0.1366
2021-08-12 2021-06-30 13F MESABI TR CTF BEN INT 590672101 7,700 0 0.00 273 17.67 0.1778
2021-05-13 2021-03-31 13F MESABI TR CTF BEN INT 590672101 7,700 0 0.00 232 7.41 0.1674
2021-02-11 2020-12-31 13F MESABI TR CTF BEN INT 590672101 7,700 7,700 216 0.1626
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.