Failure to Satisfy Listing Rule (Form 8-K)

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On July 31, 2025, SeaStar Medical Holding Corporation (the "Company") received a deficiency letter from the Listing Qualifications Department (the "Staff") of the Nasdaq Stock Market ("Nasdaq") notifying the Company that, for the preceding 30 consecutive business days, the closing bid price for the Company's common stock, par value $0.0001 per share (the "Common Stock") was below the minimum $1.00 per share requirement for continued inclusion on The Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2) (the "Bid Price Requirement").

The notification received has no immediate effect on the Company's Nasdaq listing. In accordance with Nasdaq rules, the Company has been provided an initial period of 180 calendar days, or until January 27, 2026 (the "Compliance Date"), to regain compliance with the Bid Price Requirement. If, at any time before the Compliance Date, the closing bid price for the Common Stock is at least $1.00 for a minimum of 10 consecutive business days, the Staff will provide the Company written confirmation of compliance with the Bid Price Requirement.

The Company intends to monitor the closing bid price of the Common Stock and may, if appropriate, consider available options to regain compliance with the Bid Price Requirement.