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CMRE updates rights plan; 6.5% cap for U.S. passive 13G holders

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(Neutral)
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Form Type
6-K

Rhea-AI Filing Summary

Costamare Inc. amended its Shareholders Rights Agreement to lower the trigger for U.S. Persons: the Rights become exercisable if a U.S. Person acquires beneficial ownership of 5% or more of common stock, subject to specified exceptions. For non-U.S. Persons, the existing threshold remains unchanged.

The amendment includes grandfathering: any U.S. Person already at or above 5% as of the public announcement will not be deemed an Acquiring Person so long as they do not exceed their current percentage. The Board will also exempt existing U.S.-based passive investors eligible to file on Schedule 13G, provided they do not beneficially own 6.5% or more and remain eligible for 13G status.

The Board approved the change to protect stockholder value following China’s Ministry of Transport announcement on special port fees for U.S.-linked vessels and related guidance, and to strengthen the Company’s ability to respond to potential U.S. Person accumulations. The Company is monitoring developments and expects to rescind the amendment and reinstate prior terms if the Board determines the changes are no longer necessary.

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Insights

Rights plan narrowed: 5% U.S. trigger with 13G carve-outs.

Costamare adjusted its rights plan so that a 5% U.S. Person stake triggers exercisability, while non-U.S. thresholds are unchanged. Grandfathering protects current U.S. holders at or above 5% if they do not increase, and a specific exemption covers existing U.S. passive investors eligible for Schedule 13G up to 6.5%.

The Board cites recent Chinese special port fee measures for U.S.-linked vessels as the rationale, aiming to manage potential accumulations that could influence compliance posture. The amendment is framed as responsive and reversible, with the Board stating it expects to rescind when conditions no longer warrant it.

Key dependencies include continued 13G eligibility for exempt passive investors and Board discretion on exemptions and rescission. Subsequent disclosures may specify any change in thresholds or status if the referenced regulatory environment stabilizes.




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

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR
15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-34934

COSTAMARE INC.
(Translation of registrant’s name into English)

7 rue du Gabian, MC 98000 Monaco
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F     ☒          Form 40-F    ☐





INCORPORATION BY REFERENCE

The information contained in this Report on Form 6-K shall be incorporated by reference into our registration statements on Form F-3, as filed with the U.S. Securities and Exchange Commission on July 6, 2016 (File No. 333-212415) and March 29, 2024 (File No. 333-278366) to the extent not superseded by information subsequently filed or furnished (to the extent we expressly state that we incorporate such furnished information by reference) by us under the Securities Act of 1933 or the Securities Exchange Act of 1934, in each case as amended.


EXHIBIT INDEX

99.1
First Amendment, dated as of October 21, 2025, to Shareholders Rights Agreement, dated as of October 19, 2010, by and between Costamare Inc. and Equiniti Trust Company, LLC (formerly known as American Stock Transfer & Trust Company, LLC)



Monaco, October 21, 2025 – On October 21, 2025, Costamare Inc. (the “Company”) (NYSE: CMRE) entered into a First Amendment (the “Amendment”) to the Shareholders Rights Agreement, dated as of October 19, 2010, by and between the Company and Equiniti Trust Company, LLC (formerly known as American Stock Transfer & Trust Company, LLC), as rights agent (the “Rights Agreement”). The Amendment modifies the definition of Acquiring Person to provide that, subject to certain exceptions, the Rights (as defined in the Rights Agreement) become exercisable upon a “U.S. Person” (as defined below) becoming the beneficial owner of 5% or more of the Company’s common stock then outstanding. For non-U.S. Persons, the triggering threshold remains unchanged. “U.S. Person” is generally defined to mean any person who or which is, or the ultimate parent or beneficial owner of such person who or which is, organized under the laws of the United States of America or any State of the United States of America (or in the case of a natural person, is a legal resident thereof), except as may be exempted by the Board. Any U.S. person that beneficially owned 5% or more of Company's common stock as of the public announcement of the Amendment will not be deemed to be an Acquiring Person so long as such person does not exceed its existing percentage ownership (other than subject to customary exceptions).

In addition, in connection with the entry into the Amendment, the Board of Directors (the “Board”) of the Company will grant an exemption from the definition of U.S. Persons any existing U.S.-based shareholders who or which (i) currently beneficially own 5% or more of the Company’s common stock (as evidenced by such holder’s public filings as filed with the U.S. Securities and Exchange Commission as of the public announcement of the Amendment) and (ii) are passive investors that have reported and are entitled to report beneficial ownership under Schedule 13G under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), but only so long as such holder is eligible to report ownership on Schedule 13G under the Exchange Act and such holder has not reported and is not required to report such ownership on Schedule 13D under the Exchange Act and such holder does not hold shares of the Company’s common stock on behalf of any other person who is required to report on Schedule 13D under the Exchange Act (an “Existing U.S. Passive Investor”), but solely to the extent such holder does not beneficially own 6.5% or more of the Company’s common stock.
 
The Rights Agreement otherwise remains unmodified and continues in full force and effect in accordance with its terms.

The Board approved the entry into the Amendment in an effort to protect stockholder value in light of recent developments arising from the announcement on October 10, 2025 by the Ministry of Transport of the People’s Republic of China relating to the collection of special port fees from US-linked vessels and the subsequent regulations and guidance promulgated related thereto, and to strengthen the Company’s ability to respond to any U.S. Persons who may seek to acquire an ownership interest in the Company in order to influence the Company’s ability to adhere to such regulations and guidance. The Company is closely monitoring the ongoing regulatory developments referenced above and currently expects to rescind the Amendment and reinstate the prior terms of the Rights Agreement if and once the Board determines that such changes are no longer necessary.
 
The foregoing is a summary of the terms of the Amendment, does not purport to be complete and is qualified in its entirety by reference to the Amendment, a copy of which is attached as Exhibit 99.1 and incorporated by reference into this report.
 
Forward-Looking Statements

This report contains “forward-looking statements”. In some cases, you can identify these statements by forward-looking words such as “believe”, “intend”, “anticipate”, “estimate”, “project”, “forecast”, “plan”, “potential”, “may”, “should”, “could” and “expect” and similar expressions. These statements are not historical facts but instead represent only the Company’s belief regarding future results, many of which, by their nature, are inherently uncertain and outside of the Company’s control. It is possible that actual results may differ, possibly materially, from those anticipated in these forward-looking statements. For a discussion of some of the risks and important factors that could affect future results, see the discussion in the Company’s Annual Report on Form 20-F (File No. 001-34934) under the caption “Risk Factors”.



SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date:  October 21, 2025

  COSTAMARE INC.
 
       

By:
/s/ Gregory G. Zikos  
    Name:
Gregory G. Zikos
 
    Title:
Chief Financial Officer
 
       


FAQ

What did Costamare (CMRE) change in its rights agreement?

The Rights become exercisable if a U.S. Person becomes a beneficial owner of 5% or more of common stock, subject to specified exceptions.

Does the new 5% trigger apply to non-U.S. Persons for CMRE?

No. For non-U.S. Persons, the triggering threshold remains unchanged from the prior Rights Agreement.

Are existing U.S. shareholders of CMRE grandfathered under the amendment?

Yes. U.S. Persons already at or above 5% as of the public announcement are not deemed Acquiring Persons if they do not exceed their current percentage.

What is the exemption for U.S. passive investors in CMRE?

Existing U.S.-based passive investors eligible to file on Schedule 13G are exempt, provided they do not beneficially own 6.5% or more and maintain 13G eligibility.

Why did Costamare (CMRE) make this change now?

The Board acted to protect stockholder value following China’s special port fee measures for U.S.-linked vessels and related guidance.

Could CMRE’s Board reverse this rights plan amendment?

Yes. The Company expects to rescind the amendment and reinstate prior terms if the Board determines the changes are no longer necessary.
Costamare

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