As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Heidmar Maritime Holdings Corp. The largest reported stake is Rhea Marine Ltd.'s, at 45%. 2 filings are on record since November 17, 2025 (Schedule 13D/A, November 18, 2025).
Sell to companies like Heidmar Maritime Holdings Corp? Enter your website and see 10 with a filed reason to buy from you this month. Free.
Opens in a new tab. No signup.
Heidmar Maritime Holdings Corp. has 2 Schedule 13D or 13G filings on record since 2025-11-17. 2 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Rhea Marine Ltd. | 45% | 26,238,379 | SCHEDULE 13D/A, 2025-11-18 | 2025-11-17 |
| Maistros Shipinvest Corp. | 44.9% | 26,238,379 | SCHEDULE 13D/A, 2025-11-17 | 2025-11-12 |
Holding shares or following this stake? See who's behind Heidmar Maritime Holdings Corp. and the warning signs.
Free to see. No signup.
Keep reading
More on Heidmar Maritime Holdings Corp. and the records around it.
Heidmar Maritime Holdings Corp. elsewhere on the record
Watch Heidmar Maritime Holdings Corp.
Get an email when Heidmar Maritime Holdings Corp. files again: a new raise, a leadership change, a layoff or an IPO filing. One email first to confirm; nothing else until you click it. At most one a day, one click to stop. Free for up to 3 companies.
Want the whole picture on Heidmar Maritime Holdings Corp.?
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Heidmar Maritime Holdings Corp.: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Heidmar Maritime Holdings Corp. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
2 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
Not ready to order yet? Keep this snapshot.
Sends this preview to you once; we won't add you to any list
Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Rhea Marine Ltd. | 0 | 26,238,379 | 0 | 26,238,379 | SCHEDULE 13D/A, 2025-11-18 |
| Pankaj Khanna | 64,234 | 26,238,379 | 0 | 26,302,613 | SCHEDULE 13D/A, 2025-11-18 |
| Miltiadis Marinakis | 0 | 26,238,379 | 0 | 26,238,379 | SCHEDULE 13D/A, 2025-11-17 |
| Maistros Shipinvest Corp. | 0 | 26,238,379 | 0 | 26,238,379 | SCHEDULE 13D/A, 2025-11-17 |
The latest filing identifies Heidmar Maritime Holdings Corp. by CUSIP Y3130D101 and gives its principal executive office as AKTI MIAOULI 89, PIRAEUS (SCHEDULE 13D/A, 2025-11-18).
Source of funds (Item 3)
This Amendment No.1 is being filed to reflect the decrease in the percentage of beneficial ownership of the Issuer's Common Shares held by the Reporting Persons, resulting solely from an increase in the number of Common Shares issued and outstanding. Except as set forth in this Amendment No. 1, there are no material changes to this Item 3 from the Existing Schedule 13D.Maistros Shipinvest Corp., SCHEDULE 13D/A, 2025-11-17
Purpose of Transaction (Item 4)
Maistros Shipinvest Corp.
There are no material changes to this Item 4 from the Existing Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2025-11-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-17 | Maistros Shipinvest Corp. | 44.9% | SCHEDULE 13D/A |
| 2025-11-18 | Rhea Marine Ltd. | 45% | SCHEDULE 13D/A |
Questions about who owns Heidmar Maritime Holdings Corp.
Who owns Heidmar Maritime Holdings Corp.?
On this page, 2 holders' latest ownership filings report 5% or more of Heidmar Maritime Holdings Corp.: Rhea Marine Ltd. (45%, Schedule 13D/A, filed 2025-11-18) and Maistros Shipinvest Corp. (44.9%, Schedule 13D/A, filed 2025-11-17).
Who are the largest shareholders of Heidmar Maritime Holdings Corp.?
By the share each holder's latest filing reports, the largest holders of Heidmar Maritime Holdings Corp. on this page are Rhea Marine Ltd. (45%) and Maistros Shipinvest Corp. (44.9%).
When did Rhea Marine Ltd. buy into Heidmar Maritime Holdings Corp.?
The filings give report dates, not purchase dates. The earliest filing from Rhea Marine Ltd. on this page is the Schedule 13D/A, filed 2025-11-18, reporting 45%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 2 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Tools for this story
Each opens in a new tab, filled in for Heidmar Maritime Holdings Corp.. With no account yet, you sign up free and land on the result.
Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.