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SMHI

SEACOR Marine Holdings Inc.
$7.59 -0.10 (-1.30%) At close · Jul 2
Market Cap
$205.40M
Shares
27,062,277

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 90
Total Value: $93,387,813
Total Shares: 13,042,999

Institutional Ownership Trend

25 quarters

Superinvestors Holding SMHI

All superinvestors →
Christopher Bloomstran $1,490,533

Holder Concentration

Across 90 13F filers · Δ vs Dec 31, 2025
Top Holder
13.2%
Jun 2023 → Mar 2026 · range 11.0% – 30.4%
−0.6 pts
Top 5
53.8%
Jun 2023 → Mar 2026 · range 43.6% – 62.9%
−0.1 pts
Top 10
75.6%
Jun 2023 → Mar 2026 · range 66.7% – 82.2%
+0.4 pts
HHI
723
Jun 2023 → Mar 2026 · range 553 – 1,287
Broadly held−1

Quarterly Activity

vs Dec 31, 2025
New
20
Increased
20
Decreased
31
Sold Out
11
Unchanged
19
Holder count: +9
Institutional value: +37.8%
Shares held: +15.8%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Small Oppenheimer & Close, LLC +2,240,152 2,793,985
Mega CITADEL ADVISORS LLC +74,085 119,468
Mega UBS Group AG +54,851 65,057
Mid Glenorchy Capital Ltd +18,124 210,927
Mega GEODE CAPITAL MANAGEMENT, LLC +17,881 503,611

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Small ROBOTTI ROBERT −75,000 767,946
Large FIRST MANHATTAN CO. LLC. −58,160 320,585
Large First Eagle Investment Management, LLC −40,678 1,070,489
Mega STATE STREET CORP −34,898 498,529
Mega JANE STREET GROUP, LLC −34,025 10,933

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,017,787 $7,287,354
Mega VANGUARD FIDUCIARY TRUST CO 134,348 $961,931
Small Hilltop Holdings Inc. 20,600 $147,496
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP 15,188 $108,746
Mid XTX Topco Ltd 12,535 $89,750

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,274,560 $7,672,850
Micro EPACRIA CAPITAL PARTNERS, LLC 155,230 $934,484
Mega HSBC HOLDINGS PLC 13,538 $81,498
Mid Valeo Financial Advisors, LLC 10,000 $60,200
Mid LEVIN CAPITAL STRATEGIES, L.P. 10,000 $60,200
Filter: New 20 Increased 20 Reduced 31 Sold out 11 Unchanged 19
Showing 91 of 91
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $11,022,867 11.80% 1,539,507
Small Oppenheimer & Close, LLC $10,114,344 10.83% 1,412,618
Small Oppenheimer & Close, LLC $9,890,587 10.59% 1,381,367
Mega DIMENSIONAL FUND ADVISORS LP $8,969,472 9.60% 1,252,720
Large First Eagle Investment Management, LLC $7,664,701 8.21% 1,070,489
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,287,354 7.80% 1,017,787
Small ROBOTTI ROBERT $5,498,493 5.89% 767,946
Mega GEODE CAPITAL MANAGEMENT, LLC $3,605,854 3.86% 503,611
Mega STATE STREET CORP $3,569,467 3.82% 498,529
Large Cerity Partners LLC $3,114,112 3.33% 434,932
Large FIRST MANHATTAN CO. LLC. $2,295,388 2.46% 320,585
Mega MORGAN STANLEY $1,806,544 1.93% 252,311
Mid OPPENHEIMER & CO INC $1,596,680 1.71% 223,000
Mid Glenorchy Capital Ltd $1,510,237 1.62% 210,927
Small SEMPER AUGUSTUS INVESTMENTS GROUP LLC $1,490,533 1.60% 208,175
Mega NORTHERN TRUST CORP Bank $1,396,850 1.50% 195,091
Mega JPMORGAN CHASE & CO $1,054,488 1.13% 147,275
Mega VANGUARD FIDUCIARY TRUST CO Bank $961,931 1.03% 134,348
Large HighTower Advisors, LLC $922,029 0.99% 128,775
Large RENAISSANCE TECHNOLOGIES LLC $862,064 0.92% 120,400
Mega CITADEL ADVISORS LLC $855,390 0.92% 119,468
Mega GOLDMAN SACHS GROUP INC $642,795 0.69% 89,776
Mega Nuveen, LLC $503,777 0.54% 70,360
Mega UBS Group AG $465,807 0.50% 65,057
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $458,741 0.49% 64,070
Mega D. E. Shaw & Co., Inc. $427,094 0.46% 59,650
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $416,783 0.45% 58,210
Mega Bank of New York Mellon Corp Bank $383,438 0.41% 53,553
Mega AMERICAN CENTURY COMPANIES INC $341,711 0.37% 47,725
Mega BANK OF AMERICA CORP /DE/ Bank $329,996 0.35% 46,089
Small Perennial Advisors, LLC $329,632 0.35% 46,038
Mid GSA CAPITAL PARTNERS LLP $277,249 0.30% 38,722
Mid Wilmington Savings Fund Society, FSB $276,139 0.30% 38,567
Mega Invesco Ltd. $209,829 0.22% 29,306
Mega RHUMBLINE ADVISERS $205,291 0.22% 28,672
Large Empowered Funds, LLC $205,277 0.22% 28,670
Mega BARCLAYS PLC $203,493 0.22% 28,421
Mid STEPHENS INC /AR/ $168,517 0.18% 23,536
Small Hilltop Holdings Inc. $147,496 0.16% 20,600
Mega WELLINGTON MANAGEMENT GROUP LLP $136,569 0.15% 19,074
Mega NEUBERGER BERMAN GROUP LLC $116,972 0.13% 16,337
Mega ALLIANCEBERNSTEIN L.P. $115,204 0.12% 16,090
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $108,746 0.12% 15,188
Mega DEUTSCHE BANK AG\ Bank $96,745 0.10% 13,512
Mega PRICE T ROWE ASSOCIATES INC /MD/ $91,390 0.10% 12,764
Mid XTX Topco Ltd $89,750 0.10% 12,535
Large MetLife Investment Management, LLC $89,299 0.10% 12,472
Mid INTECH INVESTMENT MANAGEMENT LLC $87,301 0.09% 12,193
Small MIRABELLA FINANCIAL SERVICES LLP $80,585 0.09% 11,255
Mega JANE STREET GROUP, LLC $78,280 0.08% 10,933
Small Almanack Investment Partners, LLC. $78,079 0.08% 10,905
Large Pathstone Holdings, LLC $77,507 0.08% 10,825
Mega FMR LLC $77,076 0.08% 10,765
Mid Callan Family Office, LLC Family Office $74,829 0.08% 10,451
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $72,931 0.08% 10,186
Mega Vanguard Global Advisers, LLC $67,855 0.07% 9,477
Mega WELLS FARGO & COMPANY/MN $59,091 0.06% 8,253
Mid Tower Research Capital LLC (TRC) $47,012 0.05% 6,566
Mega ROYAL BANK OF CANADA Bank $40,940 0.04% 5,718
Large Police & Firemen's Retirement System of New Jersey Pension $35,012 0.04% 4,890
Mega BNP PARIBAS ARBITRAGE, SA $33,379 0.04% 4,662
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $30,093 0.03% 4,203
Mid Ameritas Investment Partners, Inc. $14,241 0.02% 1,989
Mega Legal & General Group Plc $13,532 0.01% 1,890
Large Russell Investments Group, Ltd. $13,002 0.01% 1,816
Mega PNC FINANCIAL SERVICES GROUP, INC. $12,915 0.01% 1,804
Large ROYAL LONDON ASSET MANAGEMENT LTD $11,098 0.01% 1,550
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $8,455 0.01% 1,181
Small MV CAPITAL MANAGEMENT, INC. $8,097 0.01% 1,131
Mega CITIGROUP INC $7,260 0.01% 1,014
Large NISA INVESTMENT ADVISORS, LLC $7,202 0.01% 1,006
Mid Sterling Capital Management LLC $5,176 0.01% 723
Small Ascentis Independent Advisors $4,296 0.00% 600
Large CWM, LLC $3,988 0.00% 557
Mid GAMMA Investing LLC $1,739 0.00% 243
Mid Optiver Holding B.V. $1,503 0.00% 210
Micro Private Wealth Management Group, LLC $1,489 0.00% 208
Small Parkside Financial Bank & Trust Bank $1,253 0.00% 175
Mid SBI Securities Co., Ltd. Broker-Dealer $1,088 0.00% 152
Large NewEdge Advisors, LLC $909 0.00% 127
Large Steward Partners Investment Advisory, LLC $895 0.00% 125
Micro Cornerstone Financial Management LLC $787 0.00% 110
Mid HARBOUR INVESTMENTS, INC. $716 0.00% 100
Mid EverSource Wealth Advisors, LLC $279 0.00% 39
Small Root Financial Partners, LLC $264 0.00% 37
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $257 0.00% 36
Micro True Wealth Design, LLC $143 0.00% 20
Mid Allworth Financial LP $71 0.00% 10
Mid Farther Finance Advisors, LLC $21 0.00% 3
Mid MAI Capital Management $21 0.00% 3
Small Caitong International Asset Management Co., Ltd $21 0.00% 3
Key facts CIK 1690334 CUSIP 78413P101 13F (30d) 1 filings 1 filers Visit website Investor relations

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