Mesabi Trust (MSB)Horizon Kinetics Asset Management LLC added to its stake +39K shares

3M

Shares reported · +39K vs prior quarter

1.1%

Disclosed portfolio weight

$87.8M

Reported value

Holdings as of

Sep 30, 2025

Filed

Nov 14, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Oct 10, 2025Company filing · Form 8-K · ResultsReported its results
2. Oct 30, 2025Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors

What came next

1. Jan 16, 2026Company filing · Form 8-K · ResultsReported its results
2. Jan 30, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Mesabi Trust

For Mesabi Trust, OQRO holds 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MSB page.

How this filing works

• SEC Form 13F

Other disclosures at Mesabi Trust

• SEC Form 13F-HRAug 11, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRAug 12, 2025
• SEC Form 13F-HRMay 15, 2025
• SEC Form 13F-HRFeb 10, 2025
• SEC Form 13F-HRNov 13, 2024

Everything OQRO holds on this company is on its MSB page.