Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

MESABI TRUST

CIK 0000065172MSB· quarter ending 2026-06-30

Shares outstanding

13,120,010

as of 2026-09-11 · 10-Q cover page, filed 2026-09-11

Held by 13F filers

6,601,046

50.3% of shares outstanding

Holders

-11 vs 2026-03-31 · 6 new, 17 exited

Value

$167.0M

shares -1.1% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-09-11, as of 2026-09-11)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	—	13,120,010	6,601,046	50.3%	62	590672101

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	590672101	CTF BEN INT	62	6,601,046	13,120,010	50.3%	$167.0M	2 call / 1 put	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (62 of 62 · 590672101)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	HORIZON KINETICS ASSET MANAGEMENT LLC	3,219,382	24.54%	$81.5M	+78,410 (+2.5%)
2	VALUEWORKS LLC	669,733	5.10%	$16.9M	+23,151 (+3.6%)
3	CWA Asset Management Group, LLC	518,974	3.96%	$13.1M	+71,489 (+16.0%)
4	FIRST MANHATTAN CO. LLC.	396,373	3.02%	$10.0M	+86,313 (+27.8%)
5	MAD RIVER INVESTORS	323,735	2.47%	$8.2M	+2,189 (+0.7%)
6	Advisory Services Network, LLC	185,669	1.42%	$4.7M	+1,040 (+0.6%)
7	Moors & Cabot, Inc.	178,289	1.36%	$4.5M	-2,656 (-1.5%)
8	EagleClaw Capital Managment, LLC	170,575	1.30%	$4.3M	+800 (+0.5%)
9	MORGAN STANLEY	113,293	0.86%	$2.9M	-752 (-0.7%)
10	Bank of New York Mellon Corp	101,464	0.77%	$2.6M	+1,266 (+1.3%)
11	SEI INVESTMENTS CO	83,883	0.64%	$2.1M	-83,883 (-50.0%)
12	Lido Advisors, LLC	79,982	0.61%	$2.0M	+1 (+0.0%)
13	GEODE CAPITAL MANAGEMENT, LLC	59,649	0.45%	$1.5M	+2,139 (+3.7%)
14	ROYAL BANK OF CANADA	54,825	0.42%	$1.4M	+3,709 (+7.3%)
15	BANK OF AMERICA CORP /DE/	44,658	0.34%	$1.1M	-133,223 (-74.9%)
16	JPMORGAN CHASE & CO	36,572	0.28%	$873K	+268 (+0.7%)
17	PECAUT & CO.	33,963	0.26%	$859K	—
18	LANARK FINANCIAL, INC.	30,742	0.23%	$778K	—
19	HighTower Advisors, LLC	25,616	0.20%	$648K	-900 (-3.4%)
20	Steward Partners Investment Advisory, LLC	24,638	0.19%	$623K	+378 (+1.6%)
21	COMMONWEALTH EQUITY SERVICES, LLC	18,071	0.14%	$457K	-940 (-4.9%)
22	WELLS FARGO & COMPANY/MN	17,658	0.13%	$447K	-334 (-1.9%)
23	Russell Investments Group, Ltd.	17,077	0.13%	$432K	—
24	Westmount Partners, LLC	16,856	0.13%	$426K	—
25	One Charles Private Wealth Services, LLC	16,230	0.12%	$411K	-1,033 (-6.0%)
26	PKS Advisory Services, LLC	15,975	0.12%	$404K	NEW
27	LPL Financial LLC	15,683	0.12%	$397K	-2,979 (-16.0%)
28	Janney Montgomery Scott LLC	15,070	0.11%	$381K	-2,030 (-11.9%)
29	UBS Group AG	14,893	0.11%	$377K	-5,411 (-26.6%)
30	TWO SIGMA INVESTMENTS, LP	14,520	0.11%	$367K	NEW
31	Essex Financial Services, Inc.	14,031	0.11%	$355K	+118 (+0.8%)
32	XTX Topco Ltd	12,692	0.10%	$321K	NEW
33	Acorn Wealth Advisors, LLC	11,000	0.08%	$278K	—
34	Inspire Advisors, LLC	10,703	0.08%	$271K	+3,275 (+44.1%)
35	STEINBERGANNA WEALTH MANAGEMENT	10,465	0.08%	$265K	+570 (+5.8%)
36	RAYMOND JAMES FINANCIAL INC	9,304	0.07%	$235K	-3,288 (-26.1%)
37	Quent Capital, LLC	3,041	0.02%	$73K	—
38	BNP PARIBAS FINANCIAL MARKETS	2,500	0.02%	$63K	NEW
39	OSAIC HOLDINGS, INC.	1,942	0.01%	$49K	-2,945 (-60.3%)
40	NewEdge Advisors, LLC	1,643	0.01%	$42K	+5 (+0.3%)
41	Farther Finance Advisors, LLC	1,506	0.01%	$38K	+8 (+0.5%)
42	Medallion Wealth Advisors, LLC	1,240	0.01%	$31K	—
43	CITIGROUP INC	1,084	0.01%	$27K	+255 (+30.8%)
44	MARK SHEPTOFF FINANCIAL PLANNING, LLC	1,000	0.01%	$25K	—
45	United Financial Planning Group LLC	1,000	0.01%	$25K	NEW
46	FIFTH THIRD BANCORP	550	0.00%	$14K	—
47	Golden State Wealth Management, LLC	500	0.00%	$13K	—
48	Cullen/Frost Bankers, Inc.	500	0.00%	$13K	—
49	Allworth Financial LP	500	0.00%	$13K	—
50	BEACON INVESTMENT ADVISORY SERVICES, INC.	300	0.00%	$8K	—
51	Godfrey Financial Associates, Inc.	300	0.00%	$8K	—
52	Tower Research Capital LLC (TRC)	278	0.00%	$7K	+76 (+37.6%)
53	Bernard Wealth Management Corp.	251	0.00%	$6K	+2 (+0.8%)
54	CoreCap Advisors, LLC	200	0.00%	$5K	—
55	SIMPLEX TRADING, LLC	162	0.00%	$4K	-2,321 (-93.5%)
56	Aventura Private Wealth, LLC	128	0.00%	$3K	—
57	Financial Perspectives, Inc	100	0.00%	$3K	—
58	FMR LLC	27	0.00%	$683	-10 (-27.0%)
59	GAMMA Investing LLC	26	0.00%	$658	-14 (-35.0%)
60	ASSETMARK, INC	18	0.00%	$455	—
61	BARCLAYS PLC	6	0.00%	$152	NEW
62	HUNTINGTON NATIONAL BANK	1	0.00%	$25	—

Exited since 2026-03-31 (17 filers; largest 17 shown)

MSRH, LLC	−45,114
Redhawk Wealth Advisors, Inc.	−34,141
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	−15,734
Verdad Advisers, LP	−10,303
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	−8,618
AMERIPRISE FINANCIAL INC	−7,844
Atlas Wealth Partners, LLC	−7,470
BANK OF MONTREAL /CAN/	−7,401
BOURGEON CAPITAL MANAGEMENT LLC	−6,999
MAI Capital Management	−4,540
Colonial Trust Advisors	−750
CWM, LLC	−682
US BANCORP \DE\	−400
Anfield Capital Management, LLC	−241
GROUP ONE TRADING LLC	−145
WealthCollab, LLC	−96
GHP Investment Advisors, Inc.	−40

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
HORIZON KINETICS ASSET MANAGEMENT LLC	SCHEDULE 13G/A	2026-04-29	2026-03-31	3,140,972	23.9%
Horizon Kinetics Holding Corp	SCHEDULE 13G/A	2026-04-29	2026-03-31	3,140,972	23.9%
Charles Lemonides	SCHEDULE 13G/A	2025-08-14	2025-06-30	685,846	5.23%
VALUEWORKS LLC	SCHEDULE 13G/A	2025-08-14	2025-06-30	685,846	5.23%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.