---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-002898"
form_type: "8-K"
ticker: "CTSO"
cik: "0001175151"
company_name: "Cytosorbents Corp"
filed_at: "2025-01-13T23:59:59+00:00"
generated_at: "2026-05-28T02:48:39.123159+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# CytoSorbents closes oversubscribed rights offering, raises $6.25M, unlocks $5M restricted cash

## Summary
- Rights offering raised $6.25M gross from all 6.25M Units; oversubscribed 68% with 10.5M Units demanded.
- Proceeds satisfy debt covenant, releasing $5.0M of restricted cash; net liquidity increase ~$10.8M.
- Preliminary unaudited cash (incl. restricted) at Dec 31, 2024: $9.6M; pro forma $15.4M unrestricted $13.9M.
- Q4 2024 cash burn est. $2.6M vs Q3 $2.7M; full audited results expected March 6, 2025.
- Right Warrants exercisable at 90% of VWAP; Series A floor $1.00 cap $2.00, Series B floor $2.00 cap $4.00.

## SEC filing metadata
- accession: 0001104659-25-002898
- form_type: 8-K
- ticker: CTSO
- cik: 0001175151
- company_name: Cytosorbents Corp
- filed_at: 2025-01-13T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1175151/000110465925002898/0001104659-25-002898-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1175151/000110465925002898/tm253092d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-002898
- JSON: https://secwatch.observer/filing/0001104659-25-002898.json
- Plain text: https://secwatch.observer/filing/0001104659-25-002898.txt

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