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Equibles

SMHI

SEACOR Marine Holdings Inc.

Company with tickers: SMHI

CIK
1690334
CUSIP
78413P101
Shares Outstanding
27,062,277
13F Activity (30d)
27 filings 27 filers

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: 67
Total Value: $55,525,623
Total Shares: 7,754,980

Institutional Ownership Trend

28 quarters

Superinvestors Holding SMHI

All superinvestors →
Christopher Bloomstran $1,490,533

Holder Concentration

Across 67 13F filers · Δ vs Dec 31, 2025
Top Holder
21.8%
Mar 2024 → Mar 2026 · range 11.0% – 21.8%
+4.7 pts
Top 5
65.7%
Mar 2024 → Mar 2026 · range 43.6% – 65.7%
+8.1 pts
Top 10
85.8%
Mar 2024 → Mar 2026 · range 66.7% – 85.8%
+4.2 pts
HHI
1,109
Mar 2024 → Mar 2026 · range 553 – 1,109
Broadly held+250

Quarterly Activity

vs Dec 31, 2025
New
19
Increased
13
Decreased
17
Sold Out
12
Unchanged
18
Holder count: +7
Institutional value: +86.5%
Shares held: +56.8%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Small Oppenheimer & Close, LLC +2,240,152 2,793,985
Mid Glenorchy Capital Ltd +18,124 210,927
Mega GEODE CAPITAL MANAGEMENT, LLC +17,881 503,611
Mega NORTHERN TRUST CORP +12,118 195,091
Mid Tower Research Capital LLC (TRC) +4,703 6,566

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Small ROBOTTI ROBERT −75,000 767,946
Mega STATE STREET CORP −34,898 498,529
Large NEW YORK STATE COMMON RETIREMENT FUND −15,700 4,203
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC −14,000 64,070
Large Empowered Funds, LLC −14,000 28,670

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
Large FIRST MANHATTAN CO. LLC. 378,745 $2,280,044
Micro EPACRIA CAPITAL PARTNERS, LLC 155,230 $934,484
Mega HSBC HOLDINGS PLC 13,538 $81,498
Mega UBS Group AG 10,206 $61,439
Mid Valeo Financial Advisors, LLC 10,000 $60,200
Filter: New 19 Increased 13 Reduced 17 Sold out 12 Unchanged 18
Showing 68 of 68
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small Oppenheimer & Close, LLC $10,114,344 18.22% 1,412,618
Small Oppenheimer & Close, LLC $9,890,587 17.81% 1,381,367
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,287,354 13.12% 1,017,787
Small ROBOTTI ROBERT $5,498,493 9.90% 767,946
Mega GEODE CAPITAL MANAGEMENT, LLC $3,605,854 6.49% 503,611
Mega STATE STREET CORP $3,569,467 6.43% 498,529
Large Cerity Partners LLC $3,114,112 5.61% 434,932
Mid OPPENHEIMER & CO INC $1,596,680 2.88% 223,000
Mid Glenorchy Capital Ltd $1,510,237 2.72% 210,927
Small SEMPER AUGUSTUS INVESTMENTS GROUP LLC $1,490,533 2.68% 208,175
Mega NORTHERN TRUST CORP Bank $1,396,850 2.52% 195,091
Mega VANGUARD FIDUCIARY TRUST CO Bank $961,931 1.73% 134,348
Large HighTower Advisors, LLC $922,029 1.66% 128,775
Mega Nuveen, LLC $503,777 0.91% 70,360
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $458,741 0.83% 64,070
Mega D. E. Shaw & Co., Inc. $427,094 0.77% 59,650
Mega AMERICAN CENTURY COMPANIES INC $341,711 0.62% 47,725
Small Perennial Advisors, LLC $329,632 0.59% 46,038
Mid GSA CAPITAL PARTNERS LLP $277,249 0.50% 38,722
Mid Wilmington Savings Fund Society, FSB $276,139 0.50% 38,567
Mega RHUMBLINE ADVISERS $205,291 0.37% 28,672
Large Empowered Funds, LLC $205,277 0.37% 28,670
Mid STEPHENS INC /AR/ $168,517 0.30% 23,536
Small Hilltop Holdings Inc. $147,496 0.27% 20,600
Mega NEUBERGER BERMAN GROUP LLC $116,972 0.21% 16,337
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $108,746 0.20% 15,188
Mega DEUTSCHE BANK AG\ Bank $96,745 0.17% 13,512
Mid XTX Topco Ltd $89,750 0.16% 12,535
Large MetLife Investment Management, LLC $89,299 0.16% 12,472
Mid INTECH INVESTMENT MANAGEMENT LLC $87,301 0.16% 12,193
Small Almanack Investment Partners, LLC. $78,079 0.14% 10,905
Large Pathstone Holdings, LLC $77,507 0.14% 10,825
Mid Callan Family Office, LLC Family Office $74,829 0.13% 10,451
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $72,931 0.13% 10,186
Mega Vanguard Global Advisers, LLC $67,855 0.12% 9,477
Mid Tower Research Capital LLC (TRC) $47,012 0.08% 6,566
Large Police & Firemen's Retirement System of New Jersey Pension $35,012 0.06% 4,890
Mega BNP PARIBAS ARBITRAGE, SA $33,379 0.06% 4,662
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $30,093 0.05% 4,203
Mid Ameritas Investment Partners, Inc. $14,241 0.03% 1,989
Mega Legal & General Group Plc $13,532 0.02% 1,890
Large Russell Investments Group, Ltd. $13,002 0.02% 1,816
Mega PNC FINANCIAL SERVICES GROUP, INC. $12,915 0.02% 1,804
Large ROYAL LONDON ASSET MANAGEMENT LTD $11,098 0.02% 1,550
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $8,455 0.02% 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 0.01% 600
Large CWM, LLC $3,988 0.01% 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

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