Security Snapshot

SEACOR Marine Holdings Inc. - Common Stock, $0.01 par value (SMHI) Institutional Ownership

CUSIP: 78413P101

13F Institutional Holders and Ownership History from Q2 2017 to Q2 2026

Latest Period

Q1 2026

Institutions Reporting

91

Shares (Excl. Options)

11,756,883

Price

$7.16

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+484,623
Value change
+$3,687,642
Number of holders
91
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
27,078,762
SEC-reported price per share
$7.65
Insider filing price
$7.65
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • SMHI - SEACOR Marine Holdings Inc. - Common Stock, $0.01 par value is tracked under CUSIP 78413P101.
  • 91 institutions reported positions in Q1 2026.
  • 5 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 91 to 2 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $84,209,031 to $354,341.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 91 institutions filings for Q1 2026.

Open SEC evidence

Security key

78413P101

Latest holder period

Q1 2026

13F holders

91

13D/G owners

5

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
5
Security
SMHI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Chernett Jorey 7.2% +4.1% $14,310,178 +$514,500 1,946,963 +3.7% Chernett Jorey 22 Jun 2026
Gellert John M 5.1% $7,236,079 1,424,425 John M. Gellert 10 Jan 2025
Oppenheimer & Close, LLC 5.2% $10,142,880 1,412,618 Carl K. Oppenheimer 31 Mar 2026
DIMENSIONAL FUND ADVISORS LP 4.8% -6% $7,729,704 -$727,860 1,284,004 -8.6% Dimensional Fund Advisors LP 31 Dec 2025
VANGUARD GROUP INC 4.6% -9.2% $8,015,364 -$762,841 1,235,033 -8.7% The Vanguard Group 30 Sep 2025

As of 31 Mar 2026, 91 institutional investors reported holding 11,756,883 shares of SEACOR Marine Holdings Inc. - Common Stock, $0.01 par value (SMHI). This represents 43% of the company’s total 27,078,762 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
40%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 5.7% 1,539,507 -1.4% 0% $11,022,869
Oppenheimer & Close, LLC 5.1% 1,381,367 +149% 6.2% $9,890,588
DIMENSIONAL FUND ADVISORS LP 4.6% 1,252,720 -2.4% 0% $8,970,777
First Eagle Investment Management, LLC 4% 1,070,489 -3.7% 0.01% $7,664,701
VANGUARD CAPITAL MANAGEMENT LLC 3.8% 1,017,787 0% 0% $7,287,355
ROBOTTI ROBERT 2.8% 767,946 -8.9% 0.86% $5,498,493
GEODE CAPITAL MANAGEMENT, LLC 1.9% 503,611 +3.7% 0% $3,606,509
STATE STREET CORP 1.8% 498,529 -6.5% 0% $3,569,468
Cerity Partners LLC 1.6% 434,932 -0.03% 0% $3,114,112
FIRST MANHATTAN CO. LLC. 1.2% 320,585 -15% 0.01% $2,295,389
MORGAN STANLEY 0.93% 252,311 +1.8% 0% $1,806,547
OPPENHEIMER & CO INC 0.82% 223,000 +1.1% 0.02% $1,596,680
Glenorchy Capital Ltd 0.78% 210,927 +9.4% 0.82% $1,510,243
SEMPER AUGUSTUS INVESTMENTS GROUP LLC 0.77% 208,175 0% 0.18% $1,490,533
NORTHERN TRUST CORP 0.72% 195,091 +6.6% 0% $1,396,851
JPMORGAN CHASE & CO 0.54% 147,275 -13% 0% $1,100,145
VANGUARD FIDUCIARY TRUST CO 0.5% 134,348 0% 0% $961,932
HighTower Advisors, LLC 0.48% 128,775 -0.64% 0% $922,029
VANGUARD PORTFOLIO MANAGEMENT LLC 0.47% 126,504 0% 0% $905,769
RENAISSANCE TECHNOLOGIES LLC 0.44% 120,400 +1.8% 0% $862,064
CITADEL ADVISORS LLC 0.44% 119,468 +163% 0% $855,391
GOLDMAN SACHS GROUP INC 0.33% 89,776 -19% 0% $642,796
Nuveen, LLC 0.26% 70,360 +0.93% 0% $503,778
UBS Group AG 0.24% 65,057 +537% 0% $465,808
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.24% 64,070 -18% 0.01% $458,741

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
37
Latest
Q1 2026
Rows shown
1-25 of 37
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 46,319 $354,341 +$291 $7.65 2
2026 Q1 11,756,883 $84,209,031 +$3,687,642 $7.16 91
2025 Q4 11,259,445 $67,781,892 -$2,147,448 $6.02 81
2025 Q3 11,600,995 $75,287,866 -$1,571,641 $6.49 90
2025 Q2 11,841,858 $60,395,694 -$9,000,721 $5.10 80
2025 Q1 13,618,813 $68,910,799 -$660,102 $5.06 87
2024 Q4 13,216,441 $86,693,901 -$9,903,735 $6.56 90
2024 Q3 14,698,261 $141,828,195 -$176,528 $9.65 90
2024 Q2 14,854,447 $200,376,253 -$6,892,463 $13.49 88
2024 Q1 15,285,615 $213,088,708 -$11,926,755 $13.94 91
2023 Q4 16,044,682 $202,002,684 -$5,780,444 $12.59 81
2023 Q3 16,472,138 $228,637,639 +$4,311,215 $13.88 75
2023 Q2 16,234,984 $185,566,853 +$16,559,852 $11.43 64
2023 Q1 14,843,958 $112,961,999 +$3,423,995 $7.61 60
2022 Q4 14,355,779 $131,495,257 -$1,264,850 $9.16 46
2022 Q3 14,383,076 $80,827,019 -$1,565,335 $5.62 39
2022 Q2 14,587,238 $84,025,175 +$4,510,447 $5.76 44
2022 Q1 13,837,803 $111,672,646 +$4,609,085 $8.07 40
2021 Q4 13,504,292 $45,909,694 +$755,857 $3.40 36
2021 Q3 10,935,469 $50,628,945 -$633,177 $4.63 39
2021 Q2 11,075,717 $48,841,900 +$901,844 $4.41 42
2021 Q1 10,863,219 $57,898,087 +$70,763 $5.33 42
2020 Q4 10,982,912 $29,760,499 -$2,404,019 $2.71 48
2020 Q3 11,938,746 $24,235,123 -$1,069,090 $2.03 45
2020 Q2 12,436,680 $31,712,941 -$15,831,080 $2.55 52
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