---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-035449"
form_type: "8-K"
ticker: "ICU"
cik: "0001831868"
company_name: "SeaStar Medical Holding Corp"
filed_at: "2025-11-17T23:59:59+00:00"
generated_at: "2026-05-16T19:22:29.260550+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# SeaStar Medical appoints Michael Messinger as CFO effective Nov 14, 2025

## Summary
- Michael Messinger appointed CFO; receives $15,000 monthly fee under consulting agreement.
- Agreement terminable with 30 days' notice; effective Nov 14, 2025.
- 25+ years experience; former CFO of ContraFect, led Nasdaq IPO and $90M BARDA contract.
- BBA in accounting from University of Michigan; started career at Ernst & Young.

## SEC filing metadata
- accession: 0001437749-25-035449
- form_type: 8-K
- ticker: ICU
- cik: 0001831868
- company_name: SeaStar Medical Holding Corp
- filed_at: 2025-11-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831868/000143774925035449/0001437749-25-035449-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831868/000143774925035449/icu20251111c_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-035449
- JSON: https://secwatch.observer/filing/0001437749-25-035449.json
- Plain text: https://secwatch.observer/filing/0001437749-25-035449.txt

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