Mesabi Trust
MSB • NYSE
Mesabi Trust is a steel company in the basic materials sector on NYSE, with a market cap of $454.3M. As of Q3 2025, 47% of shares are held by 69 institutional investors, with HORIZON KINETICS ASSET MANAGEMENT LLC as the largest holder at 22.86%.
Overview
Overview of institutional ownership in MSB as of Q3 2025 with a market cap of $384.0M
All Institutions
- Institutions
- 69
- Value Held
- $179.3M
- Shares Held
- 6.1M
- Avg Position
- $2.6M
- Median Position
- $330.9K
Hedge Funds
- Hedge Funds
- 6
- Value Held
- $21.2M
- Shares Held
- 725.2K
- Avg Position
- $3.5M
- Median Position
- $346.4K
Ownership Breakdown
Based on market cap of $384.0M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in MSB as of Q3 2025
| Institution | Position Value |
|---|---|
 HORIZON KINETICS ASSET MANAGEMENT LLC Long Only Manager | $87.8M 1.08% of portfolio |
 VALUEWORKS LLC Hedge Fund•Value | $19.8M 5.76% of portfolio |
B BEDDOW CAPITAL MANAGEMENT INC RIA/Wealth | $10.7M 5.61% of portfolio |
 MRM-Horizon Advisors LLC Fund of Funds | $8.6M 3.71% of portfolio |
 Moors & Cabot, Inc. RIA/Wealth | $5.5M 0.24% of portfolio |
A Advisory Services Network, LLC RIA/Wealth | $5.3M 0.08% of portfolio |
 BANK OF AMERICA CORP /DE/ Institution | $5.2M 0.00% of portfolio |
 EagleClaw Capital Managment, LLC RIA/Wealth | $4.9M 0.69% of portfolio |
 CWA Asset Management Group, LLC RIA/Wealth | $4.7M 0.17% of portfolio |
 MORGAN STANLEY RIA/Wealth | $3.0M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for MSB in Q3 2025
- Traded
- +$5.2M
- Buyers
- 41
- Sellers
- 21
- Total Bought
- +$9.3M
- Total Sold
- −$4.1M
- Avg Position
- $2.3M
Biggest Buyers
| Institution | Net Bought |
|---|---|
CWA Asset Management Group, LLC RIA/Wealth | +$4.7M +160.9K shares |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$1.4M +48.6K shares |
HORIZON KINETICS ASSET MANAGEMENT LLC Long Only Manager | +$1.1M +38.7K shares |
S STEINBERGANNA WEALTH MANAGEMENT RIA/Wealth | +$374.8K +13.0K shares |
 Atlas Wealth Partners, LLC RIA/Wealth | +$226.5K +7.8K shares |
 AMERIPRISE FINANCIAL INC Institution | +$225.9K +7.7K shares |
 BANK OF MONTREAL /CAN/ Institution | +$216.6K +7.4K shares |
 Synergy Financial Management, LLC RIA/Wealth | +$215.2K +7.5K shares |
 GSA CAPITAL PARTNERS LLP Hedge Fund•Quant | +$212.4K +7.3K shares |
 Redhawk Wealth Advisors, Inc. RIA/Wealth | +$132.7K +4.6K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy | −$644.5K −26.9K shares |
MORGAN STANLEY RIA/Wealth | −$639.4K −21.8K shares |
 UBS Group AG Institution | −$422.0K −14.4K shares |
S State of Wyoming Institution | −$407.0K −17.0K shares |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | −$363.4K −12.4K shares |
B BEDDOW CAPITAL MANAGEMENT INC RIA/Wealth | −$268.3K −9.2K shares |
VALUEWORKS LLC Hedge Fund•Value | −$267.4K −9.1K shares |
E EXCHANGE TRADED CONCEPTS, LLC Institution | −$247.5K −10.3K shares |
Moors & Cabot, Inc. RIA/Wealth | −$206.1K −7.0K shares |
−$202.7K −8.1K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited MSB in Q3 2025
- New Positions
- 4
- New Value
- $638.0K
- Exited Positions
- 8
- Exited Value
- $1.5M
New Positions
| Institution | Position Value |
|---|---|
S STEINBERGANNA WEALTH MANAGEMENT RIA/Wealth | $374.8K 13.0K shares |
Synergy Financial Management, LLC RIA/Wealth | $215.2K 7.5K shares |
C Colonial Asset Management, Inc. RIA/Wealth | $43.9K 1.5K shares |
 Groupe la Francaise Fund of Funds | $4.1K 165.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy | $644.5K 26.9K shares |
S State of Wyoming Institution | $407.0K 17.0K shares |
E EXCHANGE TRADED CONCEPTS, LLC Institution | $247.5K 10.3K shares |
$202.7K 8.1K shares | |
B BESSEMER GROUP INC Institution | $14.4K 600.0 shares |
 Kiker Wealth Management, LLC RIA/Wealth | $9.5K 395.0 shares |
 Creekmur Asset Management LLC RIA/Wealth | $16.0 1.0 shares |
S SIMPLEX TRADING, LLC Institution | - 23.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in MSB as of Q3 2025
- Call Positions
- 1
- Call Value
- -
- Put Positions
- 1
- Put Value
- $295.6K
Call Positions
| Institution | Position Value |
|---|---|
J JANE STREET GROUP, LLC Institution | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $295.6K 101.0 contracts |
Most Committed Institutions
Institutions with MSB as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
VALUEWORKS LLC Hedge Fund•Value | 5.76% $19.8M |
B BEDDOW CAPITAL MANAGEMENT INC RIA/Wealth | 5.61% $10.7M |
MRM-Horizon Advisors LLC Fund of Funds | 3.71% $8.6M |
HORIZON KINETICS ASSET MANAGEMENT LLC Long Only Manager | 1.08% $87.8M |
EagleClaw Capital Managment, LLC RIA/Wealth | 0.69% $4.9M |
P PECAUT & CO. Institution | 0.32% $980.9K |
Moors & Cabot, Inc. RIA/Wealth | 0.24% $5.5M |
Atlas Wealth Partners, LLC RIA/Wealth | 0.23% $226.5K |
S STEINBERGANNA WEALTH MANAGEMENT RIA/Wealth | 0.18% $374.8K |
CWA Asset Management Group, LLC RIA/Wealth | 0.17% $4.7M |
Hedge Fund Spotlight
Discover hedge funds investing in MSB
CITADEL ADVISORS LLC
Hedge Fund • Multi-Strategy
Portfolio ManagerKenneth Cordele Griffin
- Portfolio Value
- $122.08B
- Positions
- 5,531
- Last Reported
- Q3 2025
Sector Allocation
Position in Mesabi Trust
- Market Value
- $210.0K
- Shares Held
- 7.2K
- Portfolio Weight
- 0.00%
- Owned Since
- 2017-Q3
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $2.1B | 1.68% | |
Semiconductors Technology | $1.8B | 1.50% | |
Internet Content & Information Communication Services | $1.4B | 1.18% |
