SEACOR Marine Holdings Inc.
SMHI- Exchange
- NYSE
- Industry
- Deep Sea Foreign Transportation of Freight
- SEC CIK
- 0001690334
In the last 90 days, SEACOR Marine Holdings Inc. insiders filed 0 open-market purchases and 15 sales; 95 institutions reported holding it in 13F filings for Q2 2026, worth $93.2M in total; Semper Augustus is the only superinvestor holding it.
Holders of 5% or more of SMHI
Holders whose latest Schedule 13D or 13G filing reports 5% or more of SEACOR Marine Holdings Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Chernett Jorey | 13D | 7.19%1.95M shares | +0.29 ppfrom 6.90% | Apr 21, 20255 filings | Jun 22, 2026 | SEC |
| Gellert John M | 13D | 5.10%1.42M shares | New | Jan 17, 20251 filing | Jan 17, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
10 Schedule 13D and 13G filings on SEACOR Marine Holdings Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 11, 20262:25 PM ET | Oppenheimer & Close, LLCand 4 others | 13G | 5.10%1.38M shares | −0.14 ppfrom 5.24% | Jun 30, 2026 | SEC |
| Jun 22, 20266:34 PM ET | Chernett Jorey | 13D | 7.19%1.95M shares | +0.29 ppfrom 6.90% | Jun 22, 2026 | SEC |
| May 20, 20265:45 PM ET | Chernett Jorey | 13G/A | 6.90%1.88M shares | +1.70 ppfrom 5.20% | Mar 31, 2026 | SEC |
| Apr 21, 20263:34 PM ET | Oppenheimer & Close, LLCand 4 others | 13G | 5.24%1.41M shares | New | Mar 31, 2026 | SEC |
| Jan 21, 20261:21 PM ET | Dimensional Fund Advisors LP | 13G/A | 4.80%1.28M shares | −0.30 ppfrom 5.10%Below 5% | Dec 31, 2025 | SEC |
| Dec 31, 20251:28 PM ET | Chernett Jorey | 13G | 5.20%1.41M shares | +0.70 ppfrom 4.50% | Dec 25, 2025 | SEC |
| Nov 14, 20251:08 PM ET | Chernett Jorey | 13G/A | 4.50%1.21M shares | −0.70 ppfrom 5.20%Below 5% | Sep 30, 2025 | SEC |
| Oct 30, 20253:49 PM ET | Vanguard Group Inc | 13G/A | 4.57%1.24M shares | −0.46 ppfrom 5.03%Below 5% | Sep 30, 2025 | SEC |
| Jul 29, 20252:33 PM ET | Vanguard Group Inc | 13G | 5.03%1.35M shares | New | Jun 30, 2025 | SEC |
| Apr 21, 20256:18 PM ET | Chernett Jorey | 13G | 5.20%1.37M shares | New | Apr 4, 2025 | SEC |
| Jan 23, 20253:55 PM ET | Dimensional Fund Advisors LP | 13G | 5.10%1.40M shares | – | Dec 31, 2024 | SEC |
| Jan 17, 20254:32 PM ET | Gellert John Mand 3 others | 13D | 5.10%1.42M shares | New | Jan 10, 2025 | SEC |
| Feb 14, 2023 | Flat Footed LLC | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Jan 19, 2022 | Flat Footed LLC | 13G/AOld format | – | – | – | SEC |
| Jan 19, 2022 | Flat Footed LLC | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Flat Footed LLC | 13GOld format | – | New | – | SEC |
| Feb 12, 2021 | Dimensional Fund Advisors LP | 13G/AOld format | – | – | – | SEC |
| Feb 5, 2021 | Fabrikant Charles | 13G/AOld format | – | – | – | SEC |
| Jan 6, 2021 | Royce & Associates LP | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell SEACOR Marine Holdings Inc. shares.
No Form 144 notices for SEACOR Marine Holdings Inc. are on file.