MSB

MESABI TRUST
USCUSIP 590672101
Institutional Owners
22
+1 QoQ
13F Value Held
$140.8M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)12 adding · 6 trimming
Insider net (180d)+$0
Price history not yet available for MSB.

Top institutional holders

22 13F filers
#FundPosition valueSharesLast moveAs of
1HORIZON KINETICS ASSET MANAGEMENT LLC
$98.9M
3.14MAddedQ1 2026
2CWA Asset Management Group, LLC
$14.1M
447.5KAddedQ1 2026
3FIRST MANHATTAN CO. LLC.
$9.8M
310.1KNewQ1 2026
4Advisory Services Network, LLC
$7.0M
181.5KNewQ4 2025
5Moors & Cabot, Inc.
$5.7M
180.9KReducedQ1 2026
6Lido Advisors, LLC
$2.5M
80.0KHeldQ1 2026
7CITADEL ADVISORS LLC
$1.0M
33.1KAddedQ1 2026
8Steward Partners Investment Advisory, LLC
$764K
24.3KAddedQ1 2026
9Essex Financial Services, Inc.
$438K
13.9KReducedQ1 2026
10O'SHAUGHNESSY ASSET MANAGEMENT, LLC
$271K
8.6KReducedQ1 2026
11MAI Capital Management
$143K
4.5KAddedQ1 2026
12NewEdge Advisors, LLC
$52K
1.6KNewQ1 2026
13CWM, LLC
$21K
682AddedQ1 2026
14FLAGSHIP HARBOR ADVISORS, LLC
$20K
528NewQ4 2025
15CULLEN/FROST BANKERS, INC.
$16K
500HeldQ1 2026
16BEACON INVESTMENT ADVISORY SERVICES, INC.
$9K
300NewQ1 2026
17GROUP ONE TRADING LLC
$5K
145ReducedQ1 2026
18GAMMA Investing LLC
$1K
40AddedQ1 2026
19ASSETMARK, INC
$567
18HeldQ1 2026
20HUNTINGTON NATIONAL BANK
$32
1HeldQ1 2026

Fund activity — latest quarter

Opened (NEW)
5
funds
Added
7
funds
Reduced
4
funds
Exited
2
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

20 funds+19 since Q2 2025
01020Q2 2025Q3 2025Q4 2025Q1 2026
funds holding aggregate valuelatest $134M

Funds that own MSB also own

CompanyCo-held byCombined value
MICROSOFT CORP COMMSFT21 funds$7.6B
ALPHABET INC CAP STK CL AGOOGL21 funds$4.8B
AMAZON.COM INCAMZN21 funds$4.7B
BROADCOM INC COMAVGO21 funds$3.4B
JPMORGAN CHASE & CO.JPM21 funds$3.0B
BERKSHIRE HATHAWAY INC DEL CL B NEWBRK/B21 funds$3.0B
META PLATFORMS INC CL AMETA21 funds$2.6B
VISA INC COM CL AV21 funds$1.9B
JOHNSON & JOHNSON COMJNJ21 funds$1.8B
VANGUARD TOTAL STOCK MARKET ETFVTI21 funds$1.8B
VANGUARD TAXMANAGED FDS VAN FTSE DEV MKTVEA21 funds$1.8B
ELI LILLY & CO COMLLY21 funds$1.5B

Ranked by how many of MSB's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MSB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.