Mesabi Trust
MSB
73 hedge funds and large institutions have $210M invested in Mesabi Trust in 2026 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 23 increasing their positions, 23 reducing their positions, and 16 closing their positions.
97% more call options, than puts
Call options by funds: $1.07M | Put options by funds: $545K
1.98% more ownership
Funds ownership: 48.88% → 50.85% (+2%)
0% more repeat investments, than reductions
Existing positions increased: 23 | Existing positions reduced: 23
11% less funds holding
Funds holding: 82 → 73 (-9)
15% less capital invested
Capital invested by funds: $246M → $210M (-$36.1M)
40% less funds holding in top 10
Funds holding in top 10: 5 → 3 (-2)
44% less first-time investments, than exits
New positions opened: 9 | Existing positions closed: 16
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
First Manhattan
New York
|
+$10.6M |
| 2 |
CAMG
CWA Asset Management Group
Naples,
Florida
|
+$7.46M |
| 3 |
HKAM
Horizon Kinetics Asset Management
New York
|
+$3.86M |
| 4 |
SEI Investments
Oaks,
Pennsylvania
|
+$2.86M |
| 5 |
MRI
Mad River Investors
Boston,
Massachusetts
|
+$848K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OSAM
O'Shaughnessy Asset Management
Stamford,
Connecticut
|
-$1.18M |
| 2 |
V
ValueWorks
New York
|
-$599K |
| 3 |
Two Sigma Investments
New York
|
-$454K |
| 4 |
AWM
Apollon Wealth Management
Mount Pleasant,
South Carolina
|
-$452K |
| 5 |
RWM
Ritholtz Wealth Management
New York
|
-$403K |
MSB Hedge Fund Activity: Q1 2026 in Review
73 institutional investors reported a position in Mesabi Trust (MSB) for Q1 2026, worth a combined $210M — down 15% from $246M a quarter earlier.
Sellers outnumbered buyers: 16 funds closed out of MSB and 9 opened new positions — a net loss of 7 holders — while 23 trimmed existing stakes and 23 added.
The largest buyer was First Manhattan, opening a new position worth an estimated $10.6M. The largest seller was O'Shaughnessy Asset Management, cutting an estimated $1.18M.
- 73 institutional investors held Mesabi Trust (MSB) as of Q1 2026, down from 82 in Q4 2025.
- Funds reported $210M of Mesabi Trust stock for Q1 2026, down 15% quarter-over-quarter.
- 9 funds opened new Mesabi Trust positions in Q1 2026 and 16 closed out, a net change of -7 holders.
- The largest Mesabi Trust buyer in Q1 2026 was First Manhattan, an estimated $10.6M added.
- The largest Mesabi Trust seller in Q1 2026 was O'Shaughnessy Asset Management, an estimated $1.18M sold.
Based on aggregated 13F filings for Q1 2026.