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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
AB
76
Amalgamated Bank
New York
$5K – – –
SPIA
77
Steward Partners Investment Advisory
New York
$4.82K – – –
OP
78
ORG Partners
Indiana
$3.89K – – –
GI
79
GAMMA Investing
California
$3.18K -$4.34K -716 -59%
Carson Wealth (CWM LLC)
80
Carson Wealth (CWM LLC)
Nebraska
$3K +$273 +45 +10%
Group One Trading
81
Group One Trading
Illinois
$2.82K +$2.64K +435 New
Optiver Holding
82
Optiver Holding
Netherlands
$2.56K +$2.39K +394 New
Osaic Holdings
83
Osaic Holdings
Arizona
$1.9K – – –
PWMG
84
Private Wealth Management Group
New Jersey
$1.35K – – –
PFBT
85
Parkside Financial Bank & Trust
Missouri
$1.14K – – –
SS
86
SBI Securities
Japan
$993 +$6 +1 +0.7%
AAP
87
Arax Advisory Partners
Colorado
$623 +$582 +96 New
WT
88
Whittier Trust
California
$323 +$315 +52 New
TWD
89
True Wealth Design
Ohio
$130 -$12 -2 -9%
TFA
90
Transamerica Financial Advisors
Florida
$52 +$48 +8 New
Bessemer Group
91
Bessemer Group
New Jersey
– -$10K -2,000 Closed
CCM
92
Cloud Capital Management
Washington
– +$30 +5 New
1 2 3
4

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.