SCHEDULE 13G/A

SeaStar Medical Holding Corp

Common stock, par value $0.0001 per share · CUSIP: 81256L302

Event date: 2026-09-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Mitchell P. Kopin

  Shares: 489,105.00 · Class: 9.99%

• Daniel B. Asher

  Shares: 489,105.00 · Class: 9.99%

• Intracoastal Capital LLC

  Shares: 489,105.00 · Class: 9.99%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.