Director Eleftheriou adds CMDB shares in open-market trade (CMDB)

Rhea-AI Filing Summary

Costamare Bulkers Holdings Ltd director Katerina Eleftheriou bought 65 shares of common stock in an open-market transaction. The purchase took place on March 27, 2026 at a price of $15.11 per share. Following this trade, her directly held position increased to 865 shares of common stock.

Insider Trade Summary

Net Buyer: 65 shares ($982)

Net Buy 1 txn

Insider Eleftheriou Katerina

Role Director

Bought 65 shs ($982.15)

Type	Security	Shares	Price	Value
Purchase	Common Stock, par value $0.0001 per share	65	$15.11	$982.15

Holdings After Transaction: Common Stock, par value $0.0001 per share — 865 shares (Direct)

Footnotes (1)

Key Figures

Shares purchased: 65 shares Purchase price: $15.11 per share Holdings after transaction: 865 shares

3 metrics

Shares purchased 65 shares Open-market buy on March 27, 2026

Purchase price $15.11 per share Common Stock, par value $0.0001 per share

Holdings after transaction 865 shares Direct ownership following the reported trade

Key Terms

open-market purchase, Common Stock, par value $0.0001 per share, non-derivative, transaction code P

4 terms

open-market purchase financial

"transaction_action: "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock, par value $0.0001 per share financial

"security_title: "Common Stock, par value $0.0001 per share""

non-derivative financial

"transaction_type: "non-derivative""

transaction code P financial

"transaction_code: "P" with description "Purchase in open market or private transaction""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Eleftheriou Katerina

(Last) (First) (Middle)

60 ZEPHYROU STREET & SYNGROU AVENUE

(Street)

ATHENS 17564

(City) (State) (Zip)

GREECE

(Country)

2. Issuer Name and Ticker or Trading Symbol
Costamare Bulkers Holdings Ltd [ CMDB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/27/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.0001 per share	03/27/2026		P		65	A	$15.11	865	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Anastasios Gabrielides, by power of attorney	03/31/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did CMDB director Katerina Eleftheriou report?

Director Katerina Eleftheriou reported an open-market purchase of 65 shares of Costamare Bulkers Holdings Ltd common stock. The trade occurred on March 27, 2026, and was disclosed on a Form 4 insider filing as a non-derivative stock transaction.

How many CMDB shares did the director buy and at what price?

She purchased 65 shares of Costamare Bulkers Holdings Ltd common stock at a price of $15.11 per share. The filing classifies this as an open-market purchase under transaction code P, indicating it was a standard buy in the market.

What are Katerina Eleftheriou’s CMDB holdings after this transaction?

After the reported purchase, Katerina Eleftheriou directly owns 865 shares of Costamare Bulkers Holdings Ltd common stock. This total reflects her position immediately following the 65-share open-market acquisition disclosed in the Form 4 filing.

Was the CMDB insider transaction a buy or a sell?

The insider transaction was a buy. The Form 4 lists transaction code P, described as an open-market or private purchase, and identifies the transaction direction as a buy of non-derivative common stock by the reporting director.

Does the CMDB Form 4 include any derivative securities activity?

No derivative securities activity is shown in this Form 4. The filing reports only a non-derivative transaction in common stock, and the derivativeSummary section is empty, indicating no options, warrants, or other derivatives were exercised or traded.