# EDGAR Filing Document

**Accession Number:** 0002058237
**File Stem:** 0001193125-25-284396
**Filing Date:** 2025-11
**Character Count:** 11648
**Document Hash:** 7e88bd36d9a537fa38546b9a19dfe348
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-284396.hdr.sgml**: 20251117

**ACCESSION NUMBER**: 0001193125-25-284396

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251117

**DATE AS OF CHANGE**: 20251117

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Heidmar Maritime Holdings Corp.
- **CENTRAL INDEX KEY:** 0002029471
- **STANDARD INDUSTRIAL CLASSIFICATION:** DEEP SEA FOREIGN TRANSPORTATION OF FREIGHT [4412]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-94904
- **FILM NUMBER:** 251490558

**BUSINESS ADDRESS:**
- **STREET 1:** AKTI MIAOULI 89
- **CITY:** PIRAEUS
- **STATE:** J3
- **ZIP:** 18538
- **BUSINESS PHONE:** 011302160024900

**MAIL ADDRESS:**
- **STREET 1:** AKTI MIAOULI 89
- **CITY:** PIRAEUS
- **STATE:** J3
- **ZIP:** 18538
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Maistros Shipinvest Corp.
- **CENTRAL INDEX KEY:** 0002058237

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 3, IASSONOS STREET
- **CITY:** 18537 PIRAEUS
- **STATE:** J3
- **ZIP:** 18537
- **BUSINESS PHONE:** 302104584805

**MAIL ADDRESS:**
- **STREET 1:** 3, IASSONOS STREET
- **CITY:** 18537 PIRAEUS
- **STATE:** J3
- **ZIP:** 18537

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Heidmar Maritime Holdings Corp.**

*(Name of Issuer)*

**Common Shares, par value $0.001 per share**

*(Title of Class of Securities)*

**Y3130D101**

*(CUSIP Number)*

**Foteini-Eleni Kokoretsi**<br>3 Iassonos Street<br>Piraeus J3 18537<br>30 210 458 4900

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**11/12/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **Y3130D101** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Miltiadis Marinakis** | Name of reporting person<br>**Miltiadis Marinakis** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**J3** | Citizenship or place of organization<br>**J3** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**26238379.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**26238379.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**26238379.00** | Aggregate amount beneficially owned by each reporting person<br>**26238379.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**44.9%** | Percent of class represented by amount in Row (11)<br>**44.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** *These Common Shares are owned directly by Maistros Shipinvest Corp. The reported number of shares beneficially owned by the Reporting Person excludes shares that the Reporting Person may be deemed to beneficially own due to its membership in a group but does not directly own. See Item 5(a).

**The percentage of class reported herein is based on 58,396,233 Common Shares issued and outstanding as of November 5, 2025, disclosed in the Issuer's Form 6-K filed with the U.S. Securities and Exchange Commission on November 12, 2025.

| **CUSIP No.** | **Y3130D101** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Maistros Shipinvest Corp.** | Name of reporting person<br>**Maistros Shipinvest Corp.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**1T** | Citizenship or place of organization<br>**1T** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**26238379.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**26238379.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**26238379.00** | Aggregate amount beneficially owned by each reporting person<br>**26238379.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**44.9%** | Percent of class represented by amount in Row (11)<br>**44.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** * The reported number of shares beneficially owned by the Reporting Person excludes shares that the Reporting Person may be deemed to beneficially own due to its membership in a group but does not directly own. See Item 5(a).  The number of Common Shares listed above represents the number of Common Shares directly held by Maistros Shipinvest Corp.

** The percentage of class reported herein is based on 58,396,233 Common Shares issued and outstanding as of November 5, 2025, as disclosed in the Issuer's Form 6-K filed with the U.S. Securities and Exchange Commission on November 12, 2025.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Shares, par value $0.001 per share

**(b) Name of Issuer:**
Heidmar Maritime Holdings Corp.

**(c) Address of Issuer's Principal Executive Offices:**
89 Akti Miaouli, Piraeus, J3, 18538

Explanatory Note: This Amendment No. 1 to Schedule 13D (this "Amendment No. 1") amends and supplements the Schedule 13D originally filed with the U.S. Securities and Exchange Commission (the "Commission") on February 26, 2025 (the "Existing Schedule 13D") by Miltiadis Marinakis ("Mr. Marinakis") and Maistros Shipinvest Corp. ("Maistros" and together with Mr. Marinakis, the "Reporting Persons"). This Amendment No. 1 is being filed to reflect the decrease in the percentage of beneficial ownership of shares of common stock, par value $0.001 per share (the "Common Shares") of Heidmar Maritime Holdings Corp., a Marshall Islands corporation (the "Issuer"), held by the Reporting Persons, resulting solely from an increase in the number of Common Shares issued and outstanding. Capitalized terms used herein but not otherwise defined shall have the meaning set forth in the Existing Schedule 13D. Unless indicated otherwise, all items left blank remain unchanged, and any items which are amended below are deemed to amend and update the existing items in the Existing Schedule 13D.

**Item 4. Purpose of Transaction**

There are no material changes to this Item 4 from the Existing Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
As of November 12, 2025, Mr. Marinakis may be deemed to beneficially own 26,238,379 Common Shares, which represent approximately 44.9% of Issuer's outstanding Common Shares, based on 58,396,233 Common Shares issued and outstanding based on information contained in a report on Form 6-K filed by the Issuer on November 12, 2025. These are the same Common Shares directly held by Maistros.

As of November 12, 2025, Maistros may be deemed to beneficially own 26,238,379 Common Shares, which represent approximately 44.9% of Issuer's issued and outstanding Common Shares, based on 58,396,233 Common Shares outstanding based on information contained in a report on Form 6-K filed by the Issuer on November 12, 2025.

Except as described above, there are no other Common Shares beneficially owned by the Reporting Persons.

The terms of the Shareholders' Agreement may cause Rhea and Maistros to be deemed to have formed a Section 13(d) group with respect to their beneficial ownership of Common Shares.  In that case, such group would be deemed to beneficially own an aggregate of 52,532,658 Common Shares for the purpose of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, which amount includes an additional 55,900 Common Shares purchased by Pankaj Khanna in September 2025 in the open market, as disclosed by the Issuer in its prospectus supplement filed with the Commission on November 6, 2025.  This would constitute approximately 90.0% of both the issued and outstanding Common Shares and total voting power of the Issuer as of November 12, 2025. The Reporting Persons disclaim that they have or share voting or investment power with respect to the entirety of that number of Common Shares.  See the discussion of the Shareholders' Agreement in Item 4 of the Existing Schedule 13D, which is incorporated herein by reference.

**(b)**
There are no material changes to this paragraph (b) of Item 5 from the Existing Schedule 13D.

**(c)**
Except for the agreements and transactions described in Item 3 and Item 4, none of the Reporting Persons has effected any transaction in the Common Shares of the Issuer during the past 60 days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

There are no material changes to this Item 6 from the Existing Schedule 13D.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Miltiadis Marinakis

**Signature:** /s/ Miltiadis Marinakis

**Name/Title:** Miltiadis Marinakis

**Date:** 11/17/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Maistros Shipinvest Corp.

**Signature:** /s/ Foteini-Eleni Kokoretsi

**Name/Title:** Foteini-Eleni Kokoretsi/President

**Date:** 11/17/2025