---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-106261"
form_type: "8-K"
ticker: "SLS"
cik: "0001390478"
company_name: "SELLAS Life Sciences Group, Inc."
filed_at: "2024-10-04T23:59:59+00:00"
generated_at: "2026-05-30T19:56:50.015819+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# SELLAS extends NY office sublease by one year to Sept 2026; rent unchanged

## Summary
- Sublease expiration moved from Sept 30, 2025 to Sept 30, 2026.
- Annual rent remains unchanged.
- Premises at 7 Times Square, 25th floor; no other terms modified.
- Counterparties: SELLAS as subtenant, Times Square Tower Associates as sublandlord.

## SEC filing metadata
- accession: 0001104659-24-106261
- form_type: 8-K
- ticker: SLS
- cik: 0001390478
- company_name: SELLAS Life Sciences Group, Inc.
- filed_at: 2024-10-04T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1390478/000110465924106261/0001104659-24-106261-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1390478/000110465924106261/tm2425562d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-106261
- JSON: https://secwatch.observer/filing/0001104659-24-106261.json
- Plain text: https://secwatch.observer/filing/0001104659-24-106261.txt

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