---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-032035"
form_type: "8-K"
ticker: "ICU"
cik: "0001831868"
company_name: "SeaStar Medical Holding Corp"
filed_at: "2026-10-05T20:20:28+00:00"
generated_at: "2026-10-12T14:51:31.028368+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# SeaStar Medical raises ~$3.3M as holders exercise 854,002 warrants at reduced $3.866; issues 1.7M new warrants

## Summary
- Holders exercised 854,002 Prior Warrants (issued June-August 2025 at $6.38-$7.62 strikes) at a reduced $3.866/share, raising ~$3.3M gross before fees.
- New unregistered warrants for 1,708,004 shares at $3.616: Series A for 854,002 shares (5-year term) and Series B for 854,002 shares (18-month term), each from resale registration effectiveness.
- H.C. Wainwright sole placement agent: 7.0% cash fee plus 1.0% management fee, $75,000 expenses and $15,950 clearing fee, plus 59,780 PA warrants at $4.8325.
- Company must file resale registration within 30 days of Oct 2, 2026 and have it effective within 60 days (90 if full review); 30-day issuance standstill and 6-month ban on Variable Rate Transactions.
- Closing occurred October 5, 2026; net proceeds earmarked for general corporate purposes, potentially working capital and capital expenditures.

## SEC filing metadata
- accession: 0001437749-26-032035
- form_type: 8-K
- ticker: ICU
- cik: 0001831868
- company_name: SeaStar Medical Holding Corp
- filed_at: 2026-10-05T20:20:28+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831868/000143774926032035/0001437749-26-032035-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831868/000143774926032035/icu20261003c_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-032035
- JSON: https://secwatch.observer/filing/0001437749-26-032035.json
- Plain text: https://secwatch.observer/filing/0001437749-26-032035.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.