{"url_path":"/sec/icucw/10-q/2026/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-13","source_url":"https://www.sec.gov/Archives/edgar/data/1831868/0001437749-26-016764-index.html","accession_number":"0001437749-26-016764","cik":"0001831868","ticker":"ICU","issuer_name":"SeaStar Medical Holding Corp","edgar_url":"https://www.sec.gov/Archives/edgar/data/1831868/0001437749-26-016764-index.html","primary_entity_key":"0001831868","primary_entity_name":"SeaStar Medical Holding Corp"},"word_count":687,"has_tables":true,"body_markdown":"icu20260331c_10q.htm\n\n0001831868\nSeaStar Medical Holding 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of Contents](#toc)\n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, D.C. 20549**\n\n \n\n \n\n**FORM 10-Q**\n\n \n\n \n\n**(Mark One)**\n\n**☒**\n\n**QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**\n\n \n\n**For the quarterly period ended March 31, 2026**\n\n \n\n**OR**\n\n \n\n**☐**\n\n**TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO**\n\n \n\n**Commission File Number 001-39927**\n\n \n\n**SEASTAR MEDICAL HOLDING CORPORATION**\n\n**(Exact name of Registrant as specified in its Charter)**\n\n \n\n \n\n**Delaware**\n\n**85-3681132**\n\n**(State or other jurisdiction of**\n\n**incorporation or organization)**\n\n**(I.R.S. Employer**\n\n**Identification No.)**\n\n**3513 Brighton Blvd., Suite 410**\n\n**Denver, CO**\n\n**80216**\n\n**(Address of principal executive offices)**\n\n**(Zip Code)**\n\n \n\n**Registrant**’**s telephone number, including area code: (844) 427-8100**\n\n \n\n \n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\n**Title of each class**\n \n**Trading**\n\n**Symbol(s)**\n \n**Name of each exchange on which registered**\n\nCommon Stock, $0.0001 par value\n \nICU\n \nThe Nasdaq Stock Market LLC\n\nWarrants, each whole warrant exercisable for one share of Common Stock for $11.50 per share\n \nICUCW\n \nThe Nasdaq Stock Market LLC\n\n \n\nIndicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☐ No ☒\n\n \n\nIndicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐\n\n \n\nIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.\n\n \n\n Large accelerated filer\n\n \n\n☐\n\n  \n\nAccelerated filer\n\n \n\n☐\n\nNon-accelerated filer\n\n \n\n☒\n\n  \n\nSmaller reporting company\n\n \n\n☒\n\nEmerging growth company\n \n☒\n    \n\n \n\nIf 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. ☐\n\n \n\nIndicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act ). Yes ☐ No ☒\n\n \n\nIndicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. Yes ☐ No ☒\n\n \n\nAs of May 7, 2026, the registrant had 3,997,002 shares of common stock, $0.0001 par value per share, outstanding.\n\n \n\n \n\n \n\n[Table of Contents](#toc)\n\n    \n\n \n\n**SeaStar Medical Holding Corporation**\n\n**March 31, 2026**\n\n**Table of Contents**\n\n \n\n \n\n \n\n**Page**\n\n \n\n \n\n \n\n**PART I.**\n\n[FINANCIAL INFORMATION](#part1)\n\n[1](#part1)"}