Mesabi Trust (MSB) Ownership
MSB ownership summary
as of October 18, 2026- Institutions
- 53.3% of shares outstanding
- Insiders
- 0.08% of shares outstanding
- Shares outstanding
- 13.1M
- Float
- 13.1M shares available to trade
- Short interest
- 1.00% 101K shares short
- Days to cover
- 2.17 short interest up 6.4% vs prior month
- Institutions 53.26%
- Insiders 0.08%
- Other investors 46.66%
MSB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Horizon Asset Management Inc/ny | 24.54% | 3.2M | $57.6M | +78,410 (+2.5%) | June 30, 2026 |
| 2 | Valueworks LLC | 5.10% | 670K | $12.0M | +23,151 (+3.6%) | June 30, 2026 |
| 3 | CWA Asset Management Group, LLC | 3.96% | 519K | $9.3M | +71,489 (+16.0%) | June 30, 2026 |
| 4 | First Manhattan Co. LLC | 3.02% | 396K | $7.1M | +86,313 (+27.8%) | June 30, 2026 |
| 5 | MRM-HORIZON ADVISORS LLC | 2.47% | 324K | $5.8M | +2,189 (+0.7%) | June 30, 2026 |
| 6 | Advisory Services Network, LLC | 1.42% | 186K | $3.3M | +1,040 (+0.6%) | June 30, 2026 |
| 7 | Moors & Cabot Inc | 1.36% | 178K | $3.2M | −2,656 (−1.5%) | June 30, 2026 |
| 8 | Eagleclaw Capital Management LLC | 1.30% | 171K | $3.0M | +800 (+0.5%) | June 30, 2026 |
| 9 | Morgan Stanley - Brokerage Accounts | 0.86% | 113K | $2.0M | −752 (−0.7%) | June 30, 2026 |
| 10 | Bank of New York Mellon Corp | 0.77% | 101K | $1.8M | +1,266 (+1.3%) | June 30, 2026 |
| 11 | SEI Investments Co | 0.64% | 84K | $1.5M | −83,883 (−50.0%) | June 30, 2026 |
| 12 | Lido Advisors, LLC | 0.61% | 80K | $1.4M | +1 (+0.0%) | June 30, 2026 |
| 13 | Geode Capital Management, LLC | 0.45% | 60K | $1.1M | +2,139 (+3.7%) | June 30, 2026 |
| 14 | Royal Bank of Canada | 0.42% | 55K | $980,271 | +3,709 (+7.3%) | June 30, 2026 |
| 15 | MSRH, LLC | 0.34% | 45K | $806,638 | — | March 31, 2026 |
| 16 | Bank of America Corp | 0.34% | 45K | $798,485 | −133,223 (−74.9%) | June 30, 2026 |
| 17 | JPMorgan Chase & Co | 0.28% | 37K | $653,907 | +268 (+0.7%) | June 30, 2026 |
| 18 | Pecaut & Co | 0.26% | 34K | $607,258 | — | June 30, 2026 |
| 19 | Nbc Securities Inc | 0.23% | 31K | $549,667 | — | June 30, 2026 |
| 20 | HighTower Advisors, LLC | 0.20% | 26K | $458,014 | −900 (−3.4%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 271K shares and 5 cut 221K.
MSB top mutual fund and ETF holders
17 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Horizon Kinetics Inflation Bnfcrs ETF | 3.01% | 395K | $7.1M | +975 (+0.2%) | September 30, 2026 |
| 2 | 1290 VT Small Cap Value K | 1.30% | 170K | $3.0M | — | August 31, 2026 |
| 3 | WisdomTree US SmallCap Dividend ETF | 0.54% | 71K | $1.3M | — | September 30, 2026 |
| 4 | Kinetics Small Cap Opportunities No Load | 0.38% | 50K | $897,576 | — | June 30, 2026 |
| 5 | Kinetics Paradigm No Load | 0.32% | 42K | $747,384 | — | June 30, 2026 |
| 6 | Kinetics Market Opportunities No Load | 0.32% | 41K | $741,698 | — | June 30, 2026 |
| 7 | Kinetics Internet No Load | 0.29% | 38K | $677,652 | — | June 30, 2026 |
| 8 | Kinetics Global No Load | 0.16% | 21K | $374,014 | — | June 30, 2026 |
| 9 | WisdomTree US SmallCap Earnings ETF | 0.15% | 20K | $361,641 | — | September 30, 2026 |
| 10 | WisdomTree US High Dividend ETF | 0.08% | 10K | $184,718 | — | September 30, 2026 |
| 11 | Fidelity ZERO Total Market Index | 0.05% | 7,121 | $127,323 | — | August 31, 2026 |
| 12 | Fidelity ZERO Extended Market Index | 0.03% | 3,409 | $60,953 | −1,671 (−32.9%) | August 31, 2026 |
| 13 | Fidelity Flex Small Cap Index | 0.02% | 2,006 | $35,867 | −15 (−0.7%) | July 31, 2026 |
| 14 | WisdomTree US High Div ETF | 0.01% | 1,694 | $30,289 | — | September 30, 2026 |
| 15 | Fidelity VIP Extended Mkt Indx Initial | 0.01% | 1,082 | $19,346 | — | August 31, 2026 |
| 16 | Kinetics Spin-Off and Corp Rest Adv A | <0.01% | 550 | $9,834 | — | June 30, 2026 |
| 17 | Fidelity VIP Total Market Indx Initial | <0.01% | 319 | $5,704 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MSB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MSB
Institutional investors own 53.3% of Mesabi's shares and insiders 0.08%. The largest holder is Horizon Asset Management Inc/ny with 24.54% of the shares (3.2M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 5 reduced their stake in the latest filings. Short interest is 1.00% of the float, or 2.17 days of average trading volume.
Related: MSB key metrics, MSB dividend history. See the MSB stock overview for the latest quote and news.
MSB ownership FAQ
Who owns the most Mesabi stock?
The largest shareholders of Mesabi are Horizon Asset Management Inc/ny (24.54%), Valueworks LLC (5.10%), CWA Asset Management Group, LLC (3.96%), First Manhattan Co. LLC (3.02%), MRM-HORIZON ADVISORS LLC (2.47%).
What percentage of Mesabi is owned by institutions?
Institutions hold 53.3% of Mesabi's shares outstanding; insiders hold 0.08%.
Which funds own Mesabi?
The largest fund holders of Mesabi are Horizon Kinetics Inflation Bnfcrs ETF (3.01%), 1290 VT Small Cap Value K (1.30%), WisdomTree US SmallCap Dividend ETF (0.54%), Kinetics Small Cap Opportunities No Load (0.38%), Kinetics Paradigm No Load (0.32%).
What is Mesabi's short interest?
101K shares of Mesabi were sold short, 1.00% of the float; at the average daily volume it would take 2.17 days to cover.
How many shares of Mesabi are outstanding?
Mesabi has 13.1M shares outstanding, of which 13.1M are in the public float.