---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-125598"
form_type: "8-K"
ticker: "CTSO"
cik: "0001175151"
company_name: "Cytosorbents Corp"
filed_at: "2023-12-13T23:59:59+00:00"
generated_at: "2026-06-07T13:20:35.499596+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# CytoSorbents closes $10.3M registered direct offering with insider participation

## Summary
- Closed offering of 7,733,090 shares and warrants for 2,706,561 shares at $1.33/unit, gross $10.3M.
- Net proceeds ~$9.83M; warrants exercisable at $2.00/share, expire in 5 years.
- Insiders (C-suite, board, key leaders) invested $435,000 in the offering.
- Proceeds to fund DrugSorb-ATR regulatory efforts, CytoSorb growth, clinical studies, and R&D.
- CEO expects initial STAR-T trial data before end of December 2023.

## SEC filing metadata
- accession: 0001104659-23-125598
- form_type: 8-K
- ticker: CTSO
- cik: 0001175151
- company_name: Cytosorbents Corp
- filed_at: 2023-12-13T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1175151/000110465923125598/0001104659-23-125598-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1175151/000110465923125598/tm2332718d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-125598
- JSON: https://secwatch.observer/filing/0001104659-23-125598.json
- Plain text: https://secwatch.observer/filing/0001104659-23-125598.txt

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