Security key
590672101
MESABI TRUST - Units of Beneficial Interest (MSB)
CUSIP: 590672101
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Units of Beneficial Interest
- Total 13F shares
- 1,735
- Total 13F value
- $33,981
- Share change
- +3
- SEC-reported price per share
- $19.59
- Number of holders
- 3
- Value change
- +$59
- Number of buys
- 2
- Shares outstanding
- 13,142,142
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
3
Top holders
3
MSB full security history
Ownership snapshot
Full 13F holder table
MESABI TRUST SEC filings
MESABI TRUST company facts
Broader feeds
Reporting periods
Holder history for CUSIP 590672101
Recent filing periods:
Ownership snapshot
Top reported holders of MSB - MESABI TRUST - Units of Beneficial Interest (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
HORIZON KINETICS ASSET MA...
Disclosed value leader
HORIZON KINETICS ASSET MA...
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
13F
Lead comparable stake: 24%
13D/G row: HORIZON KINETICS ASSET MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
HORIZON KINETICS ASSET MANAGEMENT LLC leads the comparable SEC ownership view at 24%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens HORIZON KINETICS ASSET MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
HORIZON KINETICS ASSET MANAGEMENT...
24%
VALUEWORKS LLC
5.2%
CWA Asset Management Group, LLC
3.9%
FIRST MANHATTAN CO. LLC.
3%
MAD RIVER INVESTORS
2.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| HORIZON KINETICS ASSET MANAGEMENT LLC |
13D/G
13F
Company
|
24%
|
$98,940,618
3,140,972 shares
|
+$4,461,849 | 31 Mar 2026 |
| VALUEWORKS LLC |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$16,944,253
669,733 shares
|
— | 30 Jun 2026 |
| CWA Asset Management Group, LLC |
13F
Company
|
3.9%
|
$13,130,052
518,974 shares
|
— | 30 Jun 2026 |
| FIRST MANHATTAN CO. LLC. |
13F
Company
|
3%
|
$10,028,237
396,373 shares
|
— | 30 Jun 2026 |
| MAD RIVER INVESTORS |
13F
Company
|
2.5%
|
$8,190,493
323,735 shares
|
— | 30 Jun 2026 |
| Advisory Services Network, LLC |
13F
Company
|
1.4%
|
$4,697,424
185,669 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
3
Shares
1,735
Rows available
3
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
62
Q3 2026 holders
3
Holder diff
-59
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend