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SeaStar Medical Holding Corp

For the period ended Dec 18, 2025. Filed Nov 14, 2025.

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What shareholders are asked to vote on at a company's meeting. It is where to find what directors and top executives are paid, and who owns the most shares.

Dec 18, 2025 · Filed Nov 14, 2025

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ICU$1.88-2.1%Stored close · as of Nov 6, 2026
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DEF 14A 1 ea0263820-02.htm PROXY STATEMENT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

(Rule 14a-101)

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. ___)

Filed by the Registrant☒
Filed by a Party other than the Registrant☐

Check the appropriate box:

☐Preliminary Proxy Statement
☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☒Definitive Proxy Statement
☐Definitive Additional Materials
☐Soliciting Material under §240.14a-12

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒No fee required.
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☐Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

NOTICE & PROXY STATEMENT

2025 Special Meeting of Stockholders

December 18, 2025

10 am MST

To Our Stockholders:

You are cordially invited to attend the 2025 Special Meeting of Stockholders (the “Special Meeting”) of SeaStar Medical Holding Corporation at 10 am MST, on Thursday, December 18, 2025. The Special Meeting will be held virtually, and no physical meeting will be held.

The Notice of Special Meeting of Stockholders and Proxy Statement on the following pages describe the matters to be presented at the Special Meeting. Please see the section titled “Who can attend the Special Meeting?” on page 3 of the Proxy Statement for more information about how to attend the meeting online.

Whether or not you attend the Special Meeting, it is important that your shares and votes are represented. Therefore, I urge you to promptly vote. Instructions for how to vote are contained on the enclosed proxy card. You can submit your vote by phone, via the Internet, or by signing, dating and returning the enclosed proxy card in the enclosed envelope, which requires no postage if mailed in the United States. If you decide to attend the virtual Special Meeting, you will be able to vote online at the Special Meeting even if you have previously submitted your proxy card.

Thank you for your support.

Sincerely,

/s/ Eric Schlorff

Eric Schlorff

Director and Chief Executive Officer

Notice of Special Meeting of Stockholders to Be Held Thursday, December 18, 2025

The Special Meeting of Stockholders (the “Special Meeting”) of SeaStar Medical Holding Corporation, a Delaware corporation (the “Company”), will be held at 10 am MST, on Thursday, December 18, 2025. The Special Meeting will be held virtually via live webcast. You will be able to attend the Special Meeting online by visitingwww.proxypush.com/ICU. You will be able to submit questions at the meeting and vote. The Special Meeting will be held for the following purposes:

To approve an amendment to our Third Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”) to effect a reverse stock split of our common stock, par value $0.0001 per share (the “Common Stock”) at a ratio of 1-for-10, without reducing the authorized number of shares of the Common Stock, to be effected in the sole discretion of the Board of Directors at any time within one year of the date of the Special Meeting without further approval or authorization of stockholders (the “Reverse Stock Split Proposal”);

To approve an amendment to our Certificate of Incorporation to reduce the number of authorized shares of common stock by 25,000,000 to 425,000,000 shares (the “Authorized Share Proposal”); and

To approve a proposal to adjourn or postpone the Special Meeting to a later date or dates, if necessary, to permit further solicitation and vote of proxies if there are insufficient votes for, or otherwise in connection with, the approval of the Reverse Stock Split Proposal or the Authorized Share Proposal.

Holders of record of the Company’s Common Stock as of the close of business on November 3, 2025, are entitled to notice of and to vote at the Special Meeting, or at any continuation, postponement or adjournment of the Special Meeting. The Special Meeting may be continued or adjourned from time to time without notice other than by announcement at the Special Meeting.

It is important that your shares be represented regardless of the number of shares you may hold. Whether or not you plan to attend the Special Meeting, we urge you to vote your shares via the toll-free telephone number or over the Internet, as described in the enclosed materials. If you received a copy of the proxy card by mail, you may sign, date and mail the proxy card in the enclosed return envelope. Promptly voting your shares will ensure the presence of a quorum at the Special Meeting and will save us the expense of further solicitation. Submitting your proxy now will not prevent you from voting your shares at the Special Meeting if you desire to do so, as your proxy is revocable at your option.

By Order of the Board of Directors

/s/ Eric Schlorff

Eric Schlorff

Chief Executive Officer

Denver, CO

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