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SEACOR Marine Holdings
SMHI

91 hedge funds and large institutions have $75.3M invested in SEACOR Marine Holdings in 2025 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 23 increasing their positions, 32 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

500% more first-time investments, than exits

New positions opened: 12 | Existing positions closed: 2

409% more call options, than puts

Call options by funds: $163K | Put options by funds: $32K

25% more capital invested

Capital invested by funds: $60.4M → $75.3M (+$14.9M)

12% more funds holding

Funds holding: 81 → 91 (+10)

1.1% less ownership

Funds ownership: 44.1% → 43% (-1.1%)

28% less repeat investments, than reductions

Existing positions increased: 23 | Existing positions reduced: 32

Holders
91
Holders Change
+10
Holders Change %
+12.35%
% of All Funds
1.19%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
12
Increased
23
Reduced
32
Closed
2
Calls
$163K
Puts
$32K
Net Calls
+$131K
Net Calls Change
+$44K

Top Buyers

Rank Fund Capital Flow
1
Jane Street
Jane Street
New York
+$249K
2
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$192K
3
Deutsche Bank
Deutsche Bank
Germany
+$186K
4
JP Morgan Chase
JP Morgan Chase
New York
+$182K
5
GCP
GSA Capital Partners
United Kingdom
+$172K

Top Sellers

Rank Fund Capital Flow
1
Vanguard Group
Vanguard Group
Pennsylvania
-$712K
2
BlackRock
BlackRock
New York
-$538K
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$252K
4
Renaissance Technologies
Renaissance Technologies
New York
-$205K
5
Millennium Management
Millennium Management
New York
-$200K
Name Holding Trade Value Shares
Change 		Change in
Stake
Bank of New York Mellon
26
Bank of New York Mellon
New York
$346K -$8.24K -1,360 -2%
Barclays
27
Barclays
United Kingdom
$345K -$38.2K -6,297 -11%
American Century Companies
28
American Century Companies
Missouri
$317K – – –
Royal Bank of Canada
29
Royal Bank of Canada
Ontario, Canada
$305K -$32.9K -5,429 -10%
GCP
30
GSA Capital Partners
United Kingdom
$300K +$172K +28,458 +160%
PA
31
Perennial Advisors
New York
$299K – – –
EF
32
Empowered Funds
Pennsylvania
$277K +$788 +130 +0.3%
Invesco
33
Invesco
Georgia
$252K -$45.2K -7,461 -16%
WSFS
34
Wilmington Savings Fund Society
Delaware
$250K – – –
RhumbLine Advisers
35
RhumbLine Advisers
Massachusetts
$216K -$39.8K -6,567 -16%
D.E. Shaw & Co
36
D.E. Shaw & Co
New York
$205K +$192K +31,648 New
Deutsche Bank
37
Deutsche Bank
Germany
$199K +$186K +30,672 New
TI
38
Trexquant Investment
Connecticut
$192K -$7.17K -1,184 -4%
MCM
39
MAI Capital Management
Ohio
$191K – – –
BCG
40
Barington Capital Group
New York
$162K +$151K +25,000 New
SI
41
Stephens Inc
Arkansas
$153K – – –
Wellington Management Group
42
Wellington Management Group
Massachusetts
$137K -$51.7K -8,534 -29%
HSBC Holdings
43
HSBC Holdings
United Kingdom
$132K +$16.8K +2,780 +16%
New York State Common Retirement Fund
44
New York State Common Retirement Fund
New York
$129K – – –
HF
45
HRT Financial
New York
$128K -$30.2K -4,979 -20%
UBS Group
46
UBS Group
Switzerland
$120K -$3.38K -557 -3%
AllianceBernstein
47
AllianceBernstein
Tennessee
$116K +$7.88K +1,300 +8%
LCS
48
Levin Capital Strategies
New York
$110K – – –
Wells Fargo
49
Wells Fargo
California
$102K +$15.6K +2,569 +19%
Neuberger Berman Group
50
Neuberger Berman Group
New York
$102K +$26K +4,290 +38%
1
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SMHI Hedge Fund Activity: Q3 2025 in Review

91 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in SEACOR Marine Holdings (SMHI) for Q3 2025, worth a combined $75.3M — up 25% from $60.4M a quarter earlier.

Buyers outnumbered sellers: 12 funds opened new SMHI positions and 2 closed out — a net gain of 10 holders — while 23 added to existing stakes and 32 trimmed.

The largest buyer was Jane Street, adding an estimated $249K. The largest seller was Vanguard Group, cutting an estimated $712K.

  • 91 institutional investors held SEACOR Marine Holdings (SMHI) as of Q3 2025, up from 81 in Q2 2025.
  • Funds reported $75.3M of SEACOR Marine Holdings stock for Q3 2025, up 25% quarter-over-quarter.
  • 12 funds opened new SEACOR Marine Holdings positions in Q3 2025 and 2 closed out, a net change of +10 holders.
  • The largest SEACOR Marine Holdings buyer in Q3 2025 was Jane Street, an estimated $249K added.
  • The largest SEACOR Marine Holdings seller in Q3 2025 was Vanguard Group, an estimated $712K sold.

Based on aggregated 13F filings for Q3 2025.