MESABI TRUST MSB
CIK 0000065172 · CUSIP 590672101
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | HORIZON KINETICS ASSET MANAGEMENT LLC CIK 1056823 · View history | $87.79M 2,999,326 shares | 1.07% | +38.74K(+1.3%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 02 | VALUEWORKS LLC CIK 1282189 · View history | $19.81M 676,709 shares | 5.76% | -9.14K(-1.3%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 03 | BEDDOW CAPITAL MANAGEMENT INC CIK 1278641 · View history | $10.71M 365,929 shares | 3.95% | -9.17K(-2.4%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 04 | MAD RIVER INVESTORS CIK 1384484 · View history | $8.65M 295,523 shares | 3.71% | +110(0.0%)Added | SEC filing ↗ Oct 14, 2025 | ▾ |
| 05 | Moors & Cabot, Inc. CIK 1607239 · View history | $5.48M 187,160 shares | 0.24% | -7.04K(-3.6%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | Advisory Services Network, LLC CIK 1573876 · View history | $5.31M 181,396 shares | 0.08% | +49(0.0%)Added | SEC filing ↗ Nov 18, 2025 | ▾ |
| 07 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $5.20M 177,795 shares | 0.00% | +27(0.0%)Added | SEC filing ↗ Feb 3, 2026 | ▾ |
| 08 | EagleClaw Capital Managment, LLC CIK 1607636 · View history | $4.90M 167,425 shares | 0.69% | +1.80K(+1.1%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | CWA Asset Management Group, LLC CIK 1667134 · View history | $4.65M 160,918 shares | 0.17% | +160.92KNew | SEC filing ↗ Oct 22, 2025 | ▾ |
| 10 | MORGAN STANLEY CIK 895421 · Amended · View history | $3.04M 103,925 shares | 0.00% | -21.85K(-17.4%)Reduced | SEC filing ↗ May 27, 2026 | ▾ |
| 11 | Lido Advisors, LLC CIK 1650150 · View history | $2.34M 79,779 shares | 0.01% | 0(0.0%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | Bank of New York Mellon Corp CIK 1390777 · View history | $2.20M 75,170 shares | 0.00% | -1.89K(-2.5%)Reduced | SEC filing ↗ Nov 3, 2025 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $1.75M 59,677 shares | 0.00% | +48.63K(+440.5%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 14 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC CIK 1423442 · View history | $1.31M 44,778 shares | 0.01% | -1.88K(-4.0%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 15 | Redhawk Wealth Advisors, Inc. CIK 1535811 · View history | $1.12M 38,711 shares | 0.13% | +4.58K(+13.4%)Added | SEC filing ↗ Oct 9, 2025 | ▾ |
| 16 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $1.06M 36,204 shares | 0.00% | -1.02K(-2.7%)Reduced | SEC filing ↗ Nov 26, 2025 | ▾ |
| 17 | NBC SECURITIES, INC. CIK 791540 · View history | $993.48K 33,942 shares | 0.08% | 0(0.0%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 18 | PECAUT & CO. CIK 1597200 · View history | $980.85K 33,963 shares | 0.32% | +23(+0.1%)Added | SEC filing ↗ Nov 3, 2025 | ▾ |
| 19 | COMMONWEALTH EQUITY SERVICES, LLC CIK 312272 · View history | $890.00K 30,409 shares | 0.00% | +307(+1.0%)Added | SEC filing ↗ Oct 22, 2025 | ▾ |
| 20 | HighTower Advisors, LLC CIK 1462245 · View history | $732.85K 25,038 shares | 0.00% | +94(+0.4%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
Showing 20 / 71 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 71 reporting institutions.
This page includes 20 of 71 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 71 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"590672101","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.