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 | $78.93M 2,901,695 shares | 0.90% | +58.69K(+2.1%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 02 | VALUEWORKS LLC CIK 1282189 · View history | $18.88M 694,155 shares | 7.12% | -84.35K(-10.8%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 03 | BEDDOW CAPITAL MANAGEMENT INC CIK 1278641 · View history | $10.96M 403,075 shares | 4.10% | -28.28K(-6.6%)Reduced | SEC filing ↗ May 9, 2025 | ▾ |
| 04 | MAD RIVER INVESTORS CIK 1384484 · View history | $8.06M 296,457 shares | 3.42% | +1.56K(+0.5%)Added | SEC filing ↗ Apr 22, 2025 | ▾ |
| 05 | Moors & Cabot, Inc. CIK 1607239 · View history | $5.67M 208,513 shares | 0.29% | -325.43K(-60.9%)Reduced | SEC filing ↗ May 8, 2025 | ▾ |
| 06 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $4.90M 180,109 shares | 0.00% | -67.82K(-27.4%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 07 | EagleClaw Capital Managment, LLC CIK 1607636 · View history | $4.49M 165,225 shares | 0.71% | +19.50K(+13.4%)Added | SEC filing ↗ May 8, 2025 | ▾ |
| 08 | MORGAN STANLEY CIK 895421 · View history | $2.43M 89,258 shares | 0.00% | -19.39K(-17.8%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 09 | Lido Advisors, LLC CIK 1650150 · View history | $2.17M 79,779 shares | 0.01% | 0(0.0%)Unchanged | SEC filing ↗ May 15, 2025 | ▾ |
| 10 | Bank of New York Mellon Corp CIK 1390777 · View history | $2.10M 77,213 shares | 0.00% | +1.13K(+1.5%)Added | SEC filing ↗ Apr 29, 2025 | ▾ |
| 11 | Advisory Services Network, LLC CIK 1573876 · View history | $1.09M 40,188 shares | 0.02% | +40.19KNew | SEC filing ↗ May 15, 2025 | ▾ |
| 12 | UBS Group AG CIK 1610520 · View history | $1.03M 37,711 shares | 0.00% | +12.60K(+50.2%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 13 | JPMORGAN CHASE & CO CIK 19617 · View history | $1.01M 37,058 shares | 0.00% | +460(+1.3%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 14 | TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history | $995.22K 36,589 shares | 0.00% | +9.61K(+35.6%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 15 | OFI INVEST ASSET MANAGEMENT CIK 1977602 · View history | $931.68K 37,000 shares | 0.02% | +600(+1.6%)Added | SEC filing ↗ May 9, 2025 | ▾ |
| 16 | NBC SECURITIES, INC. CIK 791540 · View history | $926.00K 34,062 shares | 0.08% | +34.03K(+113440.0%)Added | SEC filing ↗ Apr 9, 2025 | ▾ |
| 17 | TWO SIGMA ADVISERS, LP CIK 1478735 · View history | $924.80K 34,000 shares | 0.00% | +1.10K(+3.3%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 18 | PECAUT & CO. CIK 1597200 · View history | $912.16K 33,809 shares | 0.31% | +966(+2.9%)Added | SEC filing ↗ May 2, 2025 | ▾ |
| 19 | COMMONWEALTH EQUITY SERVICES, LLC CIK 312272 · View history | $830.00K 30,532 shares | 0.00% | +16.01K(+110.2%)Added | SEC filing ↗ May 9, 2025 | ▾ |
| 20 | ROYAL BANK OF CANADA CIK 1000275 · Amended · View history | $725.00K 26,662 shares | 0.00% | +3.30K(+14.1%)Added | SEC filing ↗ May 15, 2025 | ▾ |
Showing 20 / 65 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 65 reporting institutions.
This page includes 20 of 65 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 65 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":"2025Q1","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.