X0407 4 2023-05-23 0001831868 SeaStar Medical Holding Corp ICU 0001634290 Russell Richard D. C/O SEASTAR MEDICAL HOLDING CORPORATION 3513 BRIGHTON BLVD., SUITE 410 DENVER CO 80216 true false Common Stock, par value $0.0001 per share 2023-05-25 4 P 0 20000 0.5 A 27978 D Stock Option (Right to Buy) 1.84 2033-04-06 Common Stock 11967 11967 D Includes 7,978 shares of the Issuer's common stock subject to restricted stock units (RSUs), all of which will vest, subject to continued service, on April 6, 2024. All options reported herein will vest, subject to continued service, on the first anniversary of the date of grant. /s/ Eric Schlorff, as attorney-in-fact 2023-05-30