Christos Konstantakopoulos reports 14.7% stake in Costamare (CMRE)

Rhea-AI Filing Summary

Costamare Inc. ownership disclosure: Christos Konstantakopoulos reports beneficial ownership of 17,801,588 shares of Common Stock as of 06/30/2026, representing 14.7% of the class based on 120,892,607 shares outstanding. The filing is an amendment to a Schedule 13G/A and is signed on 07/06/2026.

Insights

Equity Governance Analyst

Large passive stake reported: 14.7% of Costamare outstanding shares.

Christos Konstantakopoulos is disclosed as beneficial owner of 17,801,588 shares as of 06/30/2026. The cover-page calculation cites 120,892,607 shares outstanding for the percent ownership.

Schedule 13G/A amendments typically update holdings; cash-flow treatment or intent (active vs passive) is not stated in the excerpt. Subsequent filings would show any change in ownership or voting arrangements.

Key Figures

Filing type: Schedule 13G/A Shares beneficially owned: 17,801,588 shares Percent of class: 14.7% +1 more

4 metrics

Filing type Schedule 13G/A Amendment reporting ownership

Shares beneficially owned 17,801,588 shares Ownership reported as of <date>06/30/2026</date>

Percent of class 14.7% Calculated using 120,892,607 shares outstanding

Shares outstanding (basis) 120,892,607 shares Aggregate outstanding used to compute percent ownership

Key Terms

Schedule 13G/A, beneficial ownership, CUSIP

3 terms

Schedule 13G/A regulatory

"Amendment No. 12 Costamare Inc. Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficial ownership financial

"Amount beneficially owned: Ownership is as of June 30, 2026."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

CUSIP regulatory

"CUSIP No.: Y1771G102"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

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

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Available on EDGAR 07/06/2026 - 04:19 PM Accepted by SEC EDGAR 07/06/2026 - 04:18 PM Learn about SEC filing dates

FAQ

What stake does Christos Konstantakopoulos report in CMRE?

He reports owning 17,801,588 shares, or 14.7%. The percent is calculated from 120,892,607 shares outstanding and the ownership is stated as of 06/30/2026 in the Schedule 13G/A amendment.

As of what date is the CMRE ownership figure reported?

The ownership is reported as of 06/30/2026. The cover page and Item 4 state that the amount beneficially owned is calculated based on that date, with the signature dated 07/06/2026.

How was the 14.7% ownership percentage calculated?

The filing calculates 14.7% from 17,801,588 shares divided by 120,892,607 shares outstanding. That aggregate outstanding share count is cited on the cover page of the amendment.

Does the filing state voting or dispositive power details for CMRE shares?

The cover page shows sole voting and dispositive power for 17,801,588 shares. Item 4 incorporates those cover-page figures by reference and records sole voting and sole dispositive power equal to the reported holdings.

Is this a Schedule 13G/A or Schedule 13D filing for CMRE?

This document is an amendment to a Schedule 13G (Schedule 13G/A). The cover identifies the form type and the filing updates ownership information rather than asserting a Schedule 13D active investor position.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 12)

Costamare Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

Y1771G102

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): Y1771G102

1

Names of Reporting Persons

Christos Konstantakopoulos

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

GREECE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 17,801,588.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 17,801,588.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,801,588.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

14.7 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: The percent ownership is calculated based upon an aggregate of 120,892,607 shares outstanding.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Costamare Inc.
(b)	Address of issuer's principal executive offices: 7 rue du Gabian, Monaco, Monaco, MC98000
Item 2.
(a)	Name of person filing: Christos Konstantakopoulos
(b)	Address or principal business office or, if none, residence: The principal business office of the person named in Item 2(a) above is: c/o Costamare Shipping Company S.A. 60 Zephyrou Street & Syngrou Avenue 17564 Athens, Greece
(c)	Citizenship: Christos Konstantakopoulos is a citizen of Greece.
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: Y1771G102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Ownership is as of June 30, 2026. The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
(b)	Percent of class: The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
	(ii) Shared power to vote or to direct the vote: The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information in Item 1 and Items 5 through 11 on the cover pages of this Schedule 13G is incorporated herein by reference.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

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.

Christos Konstantakopoulos

Signature:	/s/ Christos Konstantakopoulos
Name/Title:	Christos Konstantakopoulos
Date:	07/06/2026