Exhibit 99.1 SeaStar Medical Reports First Quarter 2025 Financial Results and Provides Business Updates DENVER, CO (May 14, 2025) – SeaStar Medical Holding Corporation (Nasdaq: ICU) a commercial-stage healthcare company focused on transforming treatments for critically ill patients facing organ failure and potential loss of life announced today financial results for the three months ended March 31, 2025, and provided business updates on key initiatives. "This is our second full quarter of the QUELIMMUNE lau ...