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Form 8-K/A

sec.gov

8-K/A — SeaStar Medical Holding Corp

Accession: 0001437749-26-021441

Filed: 2026-06-23

Period: 2025-08-13

CIK: 0001831868

SIC: 3841 (SURGICAL & MEDICAL INSTRUMENTS & APPARATUS)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

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8-K/A — icu20260520_8ka.htm (Primary)

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David Green Separation Update

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K/A

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 13, 2025

SeaStar Medical Holding Corporation

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-39927

85-3681132

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

3513 Brighton Blvd,

Suite 410

Denver, Colorado

80216

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: 844 427-8100

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on which registered

Common Stock par value $0.0001 per share

ICU

The Nasdaq Stock Market LLC

Warrants, each whole warrant exercisable for one share of Common Stock for $11.50 per share

ICUCW

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02

Departure of Directors or Certain Officer; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On June 10, 2026, SeaStar Medical Holding Corporation (the "Company") and Mr. Green entered into a separation and release agreement releasing all claims surrounding the disputed not-for-cause termination referenced in the 8-K signed on August 19, 2025, with a mutual resolution, pursuant to which SeaStar has agreed to pay Mr. Green more than what was previously disclosed in the 8-K signed on August 19, 2025.

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 hereunto duly authorized.

SeaStar Medical Holding Corporation

By:

/s/ Eric Schlorff

Date:

June 23, 2026

Name:

Eric Schlorff

Title:

Chief Executive Officer

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Document And Entity Information

Aug. 13, 2025

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Document, Type

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Entity, File Number

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Entity, Tax Identification Number

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Entity, Address, Address Line One

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Entity, Address, Address Line Two

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Entity, Address, City or Town

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Entity, Address, State or Province

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Entity, Address, Postal Zip Code

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City Area Code

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Local Phone Number

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