Institutional Ownership
Seacor Marine Hldgs Inc
CUSIP 78413P101COMSMHIQ1 2026
13D / 13G Filings
30
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
18.6%
Max % of class reported
Institutional Holders
86
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
30 filings · latest Jan 21, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jan 21, 2026 | Dimensional Fund Advisors LP | 13G/A | 4.8% | 1.28M | SEC |
| 2 | Dec 31, 2025 | Chernett Jorey | 13G | 5.2% | 1.41M | SEC |
| 3 | Nov 14, 2025 | Chernett Jorey | 13G/A | 4.5% | 1.21M | SEC |
| 4 | Oct 30, 2025 | The Vanguard Group | 13G/A | 4.6% | 1.24M | SEC |
| 5 | Jul 29, 2025 | The Vanguard Group | 13G | 5.0% | 1.35M | SEC |
| 6 | Apr 21, 2025 | Chernett Jorey | 13G | 5.2% | 1.37M | SEC |
| 7 | Jan 23, 2025 | Dimensional Fund Advisors LP | 13G | 5.1% | 1.40M | SEC |
| 8 | Jan 17, 2025 | Jmg Assets, LLC | 13D | 5.1% | — | SEC |
| 9 | Apr 10, 2024 | Price T Rowe Associates Inc /Md/ | 13G/A | 4.7% | 1.30M | SEC |
| 10 | Feb 14, 2024 | Flat Footed LLC | 13G/A | 4.1% | 1.10M | SEC |
20 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Seacor Marine Hldgs Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 1.54M | $11.02M |
| 2 | Oppenheimer & Close, LLC | 1.38M | $9.89M |
| 3 | Dimensional Fund Advisors LP | 1.25M | $8.97M |
| 4 | First Eagle Investment Management, LLC | 1.07M | $7.66M |
| 5 | Robotti Robert | 767.9K | $5.50M |
| 6 | Geode Capital Management, LLC | 503.6K | $3.61M |
| 7 | State Street Corp | 498.5K | $3.57M |
| 8 | Cerity Partners LLC | 434.9K | $3.11M |
| 9 | First Manhattan Co. LLC. | 320.6K | $2.30M |
| 10 | Morgan Stanley | 252.3K | $1.81M |