Seacor Marine HoldingsSMHI
13F holders, Q1 2026 (March 31)91holders +10
17new positions
9sold out
4famous investors
$7.16avg. 13F price*
At the end of Q1 2026, 91 institutions reported holding Seacor Marine Holdings Inc. (SMHI) in their 13F filings, up 10 from Q4 2025. 17 opened new positions and 9 sold out. The largest holders were BlackRock, Inc. ($11.0M), Oppenheimer & Close, LLC ($9.9M) and Dimensional Fund Advisors LP ($9.0M). 4 famous investors held it, including Chris Bloomstran (0.2% of Semper Augustus Investments's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Seacor Marine Holdings Inc.
- CUSIP
- 78413P101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $688K |
| Exits | 9 | $1.2M |
All 13F filers, Q4 2025 → Q1 2026: 1,132,658 shares bought and 648,175 shares sold, net +484,483 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 91 holders
| BlackRock, Inc. | 0.00% | Reduce -1.4% | 1,539,507 | $11.0M |
| Oppenheimer & Close, LLC | 6.24% | Add +149.4% | 1,381,367 | $9.9M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -2.4% | 1,252,720 | $9.0M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -3.7% | 1,070,489 | $7.7M |
| Vanguard Capital Management LLC | 0.00% | — | 1,017,787 | $7.3M |
| Robotti Robert | 0.86% | Reduce -8.9% | 767,946 | $5.5M |
| Geode Capital Management, LLC | 0.00% | Add +3.7% | 503,611 | $3.6M |
| State Street Corp. | 0.00% | Reduce -6.5% | 498,529 | $3.6M |
| Cerity Partners LLC | 0.00% | Reduce -0.0% | 434,932 | $3.1M |
| First Manhattan Co. Llc. | 0.01% | Reduce -15.4% | 320,585 | $2.3M |
| Morgan Stanley | 0.00% | Add +1.8% | 252,311 | $1.8M |
| Oppenheimer & Co. Inc. | 0.02% | Add +1.1% | 223,000 | $1.6M |
| Glenorchy Capital Ltd | 0.82% | Add +9.4% | 210,927 | $1.5M |
| Semper Augustus Investments | 0.18% | No change | 208,175 | $1.5M |
| Northern Trust Corp. | 0.00% | Add +6.6% | 195,091 | $1.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -13.4% | 147,275 | $1.1M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 134,348 | $962K |
| HighTower Advisors, LLC | 0.00% | Reduce -0.6% | 128,775 | $922K |
| Vanguard Portfolio Management LLC | 0.00% | — | 126,504 | $906K |
| Renaissance Technologies | 0.00% | Add +1.8% | 120,400 | $862K |
| Citadel Advisors | 0.00% | Add +163.2% | 119,468 | $855K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -18.7% | 89,776 | $643K |
| Nuveen, LLC | 0.00% | Add +0.9% | 70,360 | $504K |
| UBS Group AG | 0.00% | Add +537.4% | 65,057 | $466K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -17.9% | 64,070 | $459K |
| D. E. Shaw & Co. | 0.00% | Add +7.4% | 59,650 | $427K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -5.3% | 58,210 | $417K |
| Bank of New York Mellon Corp | 0.00% | Add +7.9% | 53,553 | $383K |
| American Century Companies Inc. | 0.00% | Reduce -0.6% | 47,725 | $342K |
| Bank of America Corp. | 0.00% | Reduce -23.9% | 46,089 | $330K |
| Perennial Advisors, LLC | 0.06% | No change | 46,038 | $330K |
| Gsa Capital Partners LLP | 0.02% | Add +8.6% | 38,722 | $277K |
| Wilmington Savings Fund Society, FSB | 0.01% | No change | 38,567 | $276K |
| Invesco Ltd. | 0.00% | Reduce -1.0% | 29,306 | $210K |
| Rhumbline Advisers | 0.00% | Reduce -1.1% | 28,672 | $205K |
| Empowered Funds, LLC | 0.00% | Reduce -32.8% | 28,670 | $205K |
| Barclays PLC | 0.00% | Reduce -51.1% | 28,421 | $203K |
| Stephens Inc. | 0.00% | No change | 23,536 | $169K |
| Hilltop Holdings Inc. | 0.01% | New | 20,600 | $147K |
| Wellington Management Group LLP | 0.00% | Reduce -9.4% | 19,074 | $137K |
| Neuberger Berman Group LLC | 0.00% | Reduce -0.5% | 16,337 | $117K |
| Susquehanna International Group, LLP | 0.00% | New | 15,188 | $109K |
| Alliancebernstein L.P. | 0.00% | Reduce -10.1% | 16,090 | $97K |
| Deutsche Bank AG | 0.00% | No change | 13,512 | $97K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 12,764 | $92K |
| XTX Topco Ltd | 0.00% | New | 12,535 | $90K |
| MetLife Investment Management, LLC | 0.00% | New | 12,472 | $89K |
| Intech Investment Management LLC | 0.00% | New | 12,193 | $87K |
| Mirabella Financial Services LLP | 0.01% | New | 11,255 | $81K |
| Jane Street Group, LLC | 0.00% | Reduce -75.7% | 10,933 | $78K |
| Almanack Investment Partners, LLC. | 0.01% | New | 10,905 | $78K |
| Pathstone Holdings, LLC | 0.00% | No change | 10,825 | $78K |
| FMR LLC | 0.00% | Add +7.8% | 10,765 | $77K |
| Callan Family Office, LLC | 0.00% | Add +1.4% | 10,451 | $75K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.4% | 10,186 | $73K |
| Vanguard Global Advisers, LLC | 0.00% | — | 9,477 | $68K |
| Wells Fargo & Company | 0.00% | Reduce -66.3% | 8,253 | $59K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +252.4% | 6,566 | $47K |
| Royal Bank of Canada | 0.00% | Add +781.0% | 5,718 | $41K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,890 | $35K |
| BNP Paribas Financial Markets | 0.00% | Reduce -2.9% | 4,662 | $33K |
| New York State Common Retirement Fund | 0.00% | Reduce -78.9% | 4,203 | $30K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,989 | $14K |
| Legal & General Group Plc | 0.00% | No change | 1,890 | $14K |
| Russell Investments Group, Ltd. | 0.00% | Add +2.7% | 1,816 | $13K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -3.6% | 1,804 | $13K |
| Royal London Asset Management Ltd. | 0.00% | No change | 1,550 | $11K |
| California State Teachers Retirement System | 0.00% | Reduce -12.0% | 1,181 | $8K |
| MV Capital Management, Inc. | 0.00% | No change | 1,131 | $8K |
| Citigroup Inc. | 0.00% | Reduce -36.1% | 1,014 | $7K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 1,006 | $7K |
| Sterling Capital Management LLC | 0.00% | Reduce -42.6% | 723 | $5K |
| Ascentis Independent Advisors | 0.00% | New | 600 | $4K |
| Cwm, LLC | 0.00% | Add +12.8% | 557 | $4K |
| GAMMA Investing LLC | 0.00% | Reduce -1.6% | 243 | $2K |
| Optiver Holding B.V. | 0.00% | Reduce -46.7% | 210 | $2K |
| Private Wealth Management Group, LLC | 0.00% | No change | 208 | $1K |
| Parkside Financial Bank & Trust | 0.00% | No change | 175 | $1K |
| SBI Securities Co., Ltd. | 0.00% | No change | 152 | $1K |
| NewEdge Advisors, LLC | 0.00% | No change | 127 | $909 |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 125 | $895 |
| Cornerstone Financial Management LLC | 0.00% | No change | 110 | $788 |
| Harbour Investments, Inc. | 0.00% | New | 100 | $716 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 39 | $279 |
| Root Financial Partners, LLC | 0.00% | New | 37 | $265 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 36 | $258 |
| True Wealth Design, LLC | 0.00% | No change | 20 | $144 |
| Allworth Financial LP | 0.00% | New | 10 | $72 |
| MAI Capital Management | 0.00% | New | 3 | $22 |
| Farther Finance Advisors, LLC | 0.00% | New | 3 | $22 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 3 | $21 |
"% of holder's portfolio" is SMHI's weight in each manager's 13F, not the share of Seacor Marine Holdings Inc. the manager owns.