---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-027009"
form_type: "8-K"
ticker: "SLS"
cik: "0001390478"
company_name: "SELLAS Life Sciences Group, Inc."
filed_at: "2023-03-01T23:59:59+00:00"
generated_at: "2026-06-18T17:28:39.657741+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# SELLAS closes $18.5M offering; reprices 3.4M warrants to $3.62

## Summary
- Closed underwritten offering of 7,220,217 shares and warrants for net proceeds of ~$18.5M.
- Amended 3,438,851 warrants issued April 2022, reducing exercise price from $5.40 to $3.62.
- New exercise price equals average closing price over five trading days before offering pricing.
- Offering and warrant amendments executed on February 28, 2023.

## SEC filing metadata
- accession: 0001104659-23-027009
- form_type: 8-K
- ticker: SLS
- cik: 0001390478
- company_name: SELLAS Life Sciences Group, Inc.
- filed_at: 2023-03-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1390478/000110465923027009/0001104659-23-027009-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1390478/000110465923027009/tm238142d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-027009
- JSON: https://secwatch.observer/filing/0001104659-23-027009.json
- Plain text: https://secwatch.observer/filing/0001104659-23-027009.txt

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