---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-026384"
form_type: "8-K"
ticker: "SLS"
cik: "0001390478"
company_name: "SELLAS Life Sciences Group, Inc."
filed_at: "2026-03-11T23:59:59+00:00"
generated_at: "2026-05-15T14:43:35.453480+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# SELLAS Life Sciences receives additional $16.1M from warrant exercises, total $42.6M since Dec 31

## Summary
- Additional $16.1M in proceeds from warrant exercises since January 8, 2026.
- Total warrant exercise proceeds since Dec 31, 2025: approximately $42.6M.
- Shares outstanding as of March 11, 2026: 179,536,724.
- Previously reported $26.5M in proceeds as of January 8, 2026.

## SEC filing metadata
- accession: 0001104659-26-026384
- form_type: 8-K
- ticker: SLS
- cik: 0001390478
- company_name: SELLAS Life Sciences Group, Inc.
- filed_at: 2026-03-11T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1390478/000110465926026384/0001104659-26-026384-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1390478/000110465926026384/tm268596d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-026384
- JSON: https://secwatch.observer/filing/0001104659-26-026384.json
- Plain text: https://secwatch.observer/filing/0001104659-26-026384.txt

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