Mesabi Trust (MSB)
MINERAL ROYALTY TRADERS
Mesabi Trust (MSB) is listed on the New York Stock Exchange, where it has traded since July 28, 1961.
- Listed On
- the New York Stock Exchange
- Listed Since
- July 28, 1961
- Market Cap
- $235M
About Mesabi Trust
Mesabi Trust operates as a royalty trust in the United States. The company is involved in the conservation and protection of its assets. The company's principally wholly-owned segment is the iron ore mining segment, which generates income from the Peter Mitchell Mine, an iron mine located near Babbitt, Minnesota, at the northeastern end of the Mesabi Iron Range.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 61 institutions reported holding MSB, with 6.6 million shares worth $166.3 million in aggregate. The largest reported holder was Horizon Kinetics Asset Management, with 3.2 million shares worth $81.5 million. Of the 5 largest holders listed below, all 5 added shares during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Horizon Kinetics Asset Management | 3,219,382 | $81M | Added 2.5% |
| Valueworks | 669,733 | $17M | Added 3.58% |
| Cwa Asset Management Group | 518,974 | $13M | Added 15.98% |
| First Manhattan Co. LLC | 396,373 | $10M | Added 27.84% |
| Mad River Investors | 323,735 | $8M | Added 0.68% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is MSB?
Mesabi Trust (MSB) is listed on the New York Stock Exchange, where it has traded since July 28, 1961.
Who are the largest institutional holders of MSB?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of MSB were Horizon Kinetics Asset Management, Valueworks and Cwa Asset Management Group.
How many institutions own MSB?
61 institutions reported a position in MSB for the quarter ended June 30, 2026, worth $166.3 million in total.
Did institutions buy or sell MSB last quarter?
Of the 5 largest reported holders, all 5 added shares during the quarter. Every reported holder and its change is on the SentiSense ownership page for MSB.
Every reported institutional holder, plus insider and congressional trades in MSB, on SentiSense.