SEACOR Marine Holdings
SMHI
81 hedge funds and large institutions have $67.8M invested in SEACOR Marine Holdings in 2025 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 17 increasing their positions, 34 reducing their positions, and 15 closing their positions.
1.27% less ownership
Funds ownership: 43% → 41.74% (-1.3%)
10% less capital invested
Capital invested by funds: $75.3M → $67.8M (-$7.51M)
11% less funds holding
Funds holding: 91 → 81 (-10)
50% less repeat investments, than reductions
Existing positions increased: 17 | Existing positions reduced: 34
57% less call options, than puts
Call options by funds: $13K | Put options by funds: $30K
67% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 15
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$300K |
| 2 |
Vanguard Group
Malvern,
Pennsylvania
|
+$261K |
| 3 |
D.E. Shaw & Co
New York
|
+$158K |
| 4 |
BlackRock
New York
|
+$126K |
| 5 |
OC
Oppenheimer & Co
New York
|
+$85.9K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dimensional Fund Advisors
Austin,
Texas
|
-$497K |
| 2 |
Renaissance Technologies
New York
|
-$398K |
| 3 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$307K |
| 4 |
Morgan Stanley
New York
|
-$218K |
| 5 |
TI
Trexquant Investment
Stamford,
Connecticut
|
-$192K |
SMHI Hedge Fund Activity: Q4 2025 in Review
81 of the 8,269 institutional investors tracked by Wall St. Rank reported a position in SEACOR Marine Holdings (SMHI) for Q4 2025, worth a combined $67.8M — down 10% from $75.3M a quarter earlier.
Sellers outnumbered buyers: 15 funds closed out of SMHI and 5 opened new positions — a net loss of 10 holders — while 34 trimmed existing stakes and 17 added.
The largest buyer was Citadel Advisors, opening a new position worth an estimated $300K. The largest seller was Dimensional Fund Advisors, cutting an estimated $497K.
- 81 institutional investors held SEACOR Marine Holdings (SMHI) as of Q4 2025, down from 91 in Q3 2025.
- Funds reported $67.8M of SEACOR Marine Holdings stock for Q4 2025, down 10% quarter-over-quarter.
- 5 funds opened new SEACOR Marine Holdings positions in Q4 2025 and 15 closed out, a net change of -10 holders.
- The largest SEACOR Marine Holdings buyer in Q4 2025 was Citadel Advisors, an estimated $300K added.
- The largest SEACOR Marine Holdings seller in Q4 2025 was Dimensional Fund Advisors, an estimated $497K sold.
Based on aggregated 13F filings for Q4 2025.