Costamare Bulkers (CMDB) 13D/A: 30.9% stake disclosed

Konstantinos Konstantakopoulos filed Amendment No. 2 to Schedule 13D regarding Costamare Bulkers Holdings Ltd (CMDB).

Rhea-AI Filing Summary

Konstantinos Konstantakopoulos filed Amendment No. 2 to Schedule 13D regarding Costamare Bulkers Holdings Ltd (CMDB). He reports beneficial ownership of 7,458,806 shares, representing 30.9% of the common stock, based on 24,119,963 shares outstanding. The event date is 10/16/2025.

The filing attributes his stake to direct and indirect holdings, including Kent Maritime Investments S.A. (2,985,999 shares; 12.4%), Costamare Shipping Company S.A. (846 shares; 0%), Longshaw Maritime Investments S.A. (945,318 shares; 3.9%), and one-half of the shares owned by Costamare Shipping Services Ltd. (731,950 shares; 3.0%). Voting and dispositive power are listed as sole for the reported amounts. The amendment also references recent transaction details in Exhibit 99.1.

Insights

Equity ownership analyst

Ownership update shows 30.9% beneficial stake in CMDB.

The amendment discloses that Konstantinos Konstantakopoulos beneficially owns 7,458,806 shares, or 30.9%, of Costamare Bulkers’ common stock. The position reflects direct and indirect holdings via entities he controls, with sole voting and dispositive power indicated for the reported amounts.

Percentages are calculated using 24,119,963 shares outstanding. The filing points to transaction activity within the last 60 days in Exhibit 99.1, which determines any recent changes in ownership. Actual market impact depends on future disclosures and holder actions.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What ownership stake in CMDB does Konstantinos Konstantakopoulos report?

He reports 7,458,806 shares, representing 30.9% of Costamare Bulkers’ common stock.

What share count was used to calculate the reported percentages for CMDB?

Percentages are based on 24,119,963 shares outstanding.

Which entities contribute to the reported CMDB stake?

Holdings include Kent Maritime Investments S.A. (2,985,999), Costamare Shipping Company S.A. (846), Longshaw Maritime Investments S.A. (945,318), and half of Costamare Shipping Services Ltd. (731,950).

Does the filer have voting and dispositive power over the CMDB shares?

Yes. The amendment lists sole voting power and sole dispositive power for the reported amounts.

What is the date of the event requiring this Schedule 13D/A for CMDB?

The reported event date is 10/16/2025.

Where can recent CMDB transaction details be found?

The filing references Exhibit 99.1: Transaction Information for activity in the past 60 days.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/20/2025 - 06:29 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 2)

Costamare Bulkers Holdings Ltd

(Name of Issuer)

Common Stock, $0.0001 Par Value

(Title of Class of Securities)

Y2001C101

(CUSIP Number)

Konstantinos Konstantakopoulos
c/o Costamare Shipping Company S.A., 60 Zephyrou Street and Syngrou Avenue
Athens, J3, 17564
30(210)9490050

Copy to: D. Scott Bennett, Esq
Cravath, Swaine & Moore LLP, Two Manhattan West, 375 Ninth Avenue
New York, NY, 10001
212-474-1000

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

10/16/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. Y2001C101

1

Name of reporting person

Konstantakopoulos Konstantinos

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC, OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

GREECE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 7,458,806.00
8	Shared Voting Power
9	Sole Dispositive Power 7,458,806.00
10	Shared Dispositive Power

11

Aggregate amount beneficially owned by each reporting person

7,458,806.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

30.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Note to 11: As of the date hereof, Konstantinos Konstantakopoulos owns 7,458,806 shares. This number also includes (1) 2,985,999 shares owned by Kent Maritime Investments S.A., 846 shares owned by Costamare Shipping Company S.A. and 945,318 shares owned by Longshaw Maritime Investments S.A. and (2) half of the shares (731,950 shares) owned by Costamare Shipping Services Ltd. Note to 13: The percent ownership is calculated based upon an aggregate of 24,119,963 shares outstanding.

SCHEDULE 13D

CUSIP No. Y2001C101

1

Name of reporting person

Kent Maritime Investments S.A.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MARSHALL ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 2,985,999.00
8	Shared Voting Power
9	Sole Dispositive Power 2,985,999.00
10	Shared Dispositive Power

11

Aggregate amount beneficially owned by each reporting person

2,985,999.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

12.4 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

Note to 11: Kent Maritime Investments S.A. is controlled by Konstantinos Konstantakopoulos, resulting in his indirect ownership of all 2,985,999 shares of common stock of the Issuer. Note to 13: The percent ownership is calculated based upon an aggregate of 24,119,963 shares outstanding.

SCHEDULE 13D

CUSIP No. Y2001C101

1

Name of reporting person

Costamare Shipping Company S.A.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

PANAMA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 846.00
8	Shared Voting Power
9	Sole Dispositive Power 846.00
10	Shared Dispositive Power

11

Aggregate amount beneficially owned by each reporting person

846.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

Note to 11: Costamare Shipping Company S.A. is controlled by Konstantinos Konstantakopoulos, resulting in his indirect ownership of all 846 shares of common stock of the Issuer. Note to 13: The percent ownership is calculated based upon an aggregate of 24,119,963 shares outstanding.

SCHEDULE 13D

CUSIP No. Y2001C101

1

Name of reporting person

Longshaw Maritime Investments S.A.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MARSHALL ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 945,318.00
8	Shared Voting Power
9	Sole Dispositive Power 945,318.00
10	Shared Dispositive Power

11

Aggregate amount beneficially owned by each reporting person

945,318.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.9 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

Note to 11: Longshaw Maritime Investments S.A. is controlled by Konstantinos Konstantakopoulos, resulting in his indirect ownership of all 945,318 shares of the common stock of the Issuer. Note to 13: The percent ownership is calculated based upon an aggregate of 24,119,963 shares outstanding.

SCHEDULE 13D

CUSIP No. Y2001C101

1

Name of reporting person

Costamare Shipping Services Ltd.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC, OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

MARSHALL ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 731,950.00
8	Shared Voting Power
9	Sole Dispositive Power 731,950.00
10	Shared Dispositive Power

11

Aggregate amount beneficially owned by each reporting person

731,950.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

Note to 11: Konstantinos Konstantakopoulos owns 50% of the outstanding equity of Costamare Shipping Services Ltd., resulting in his indirect ownership of half of the stock (731,950 shares) owned by Costamare Shipping Services Ltd. Note to 13: The percent ownership is calculated based upon an aggregate of 24,119,963 shares outstanding.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, $0.0001 Par Value
(b)	Name of Issuer: Costamare Bulkers Holdings Ltd
(c)	Address of Issuer's Principal Executive Offices: 7 Rue du Gabian, Monaco, MONACO , 98000.
Item 1 Comment: This Amendment No. 2 (this "Amendment") amends and restates certain portions of the Schedule 13D filed by Konstantinos Konstantakopoulos, Kent Maritime Investments S.A., Costamare Shipping Company S.A., Longshaw Maritime Investments S.A. and Costamare Shipping Services Ltd. dated May 6, 2025, as amended on August 28, 2025 (the "Schedule 13D/A"), relating to shares of common stock, par value $0.0001 per share (the "Shares") of Costamare Bulkers Holdings Limited (the "Issuer"), whose principal business office is located at 7 Rue du Gabian, MC 98000 Monaco. Except as set forth below, all Items in the Schedule 13D/A remain unchanged. Capitalized terms used but not defined herein have the meanings ascribed to them in the Schedule 13D/A.
Item 5.	Interest in Securities of the Issuer
(a)	See Items 11 and 13 on the cover pages to this Schedule 13D/A for the aggregate number and percentage of the class of securities identified pursuant to Item 1 owned by each Reporting Person.
(b)	Number of Shares as to which each Reporting Person has: i. Sole power to vote or to direct the vote: See item 7 on cover pages to this Amendment. ii. Shared power to vote or to direct the vote: See item 8 on cover pages to this Amendment. iii. Sole power to dispose or direct the disposition: See item 9 on cover pages to this Amendment. iv. Shared power to dispose or direct the disposition: See item 10 on cover pages to this Amendment.
(c)	The information provided in Item 3 of the Schedule 13D/A is hereby incorporated by reference herein and supplemented as follows for the past 60 days by the information set forth in Exhibit 99.1 to this Amendment, which is incorporated herein by reference.
Item 7.	Material to be Filed as Exhibits.
	Exhibit 99.1: TRANSACTION INFORMATION

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.

Konstantakopoulos Konstantinos

Signature:	/s/ Konstantinos Konstantakopoulos
Name/Title:	Konstantinos Konstantakopoulos
Date:	10/20/2025

Kent Maritime Investments S.A.

Signature:	/s/ Konstantinos Konstantakopoulos
Name/Title:	Konstantinos Konstantakopoulos
Date:	10/20/2025

Costamare Shipping Company S.A.

Signature:	/s/ Konstantinos Konstantakopoulos
Name/Title:	Konstantinos Konstantakopoulos
Date:	10/20/2025

Longshaw Maritime Investments S.A.

Signature:	/s/ Konstantinos Konstantakopoulos
Name/Title:	Konstantinos Konstantakopoulos
Date:	10/20/2025

Costamare Shipping Services Ltd.

Signature:	/s/ Athanasios Beis
Name/Title:	Athanasios Beis
Date:	10/20/2025