---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-061431"
form_type: "8-K"
ticker: "ISCO"
cik: "0001355790"
company_name: "International Stem Cell CORP"
filed_at: "2021-12-28T23:59:59+00:00"
generated_at: "2026-06-27T22:05:36.097163+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# International Stem Cell terminates headquarters lease early; no termination fee

## Summary
- Lease for 5950 Priestly Drive, Carlsbad, CA terminated effective no later than Dec 31, 2021.
- Original lease was set to expire March 1, 2023.
- Landlord is S Real Estate Holdings LLC, owned by EVP/CSO Russell Kern and formerly by CEO Andrey Semechkin.
- No termination fee payable; December 2021 base rent obligation released.
- Company must surrender premises per Termination Agreement section 1.

## SEC filing metadata
- accession: 0001564590-21-061431
- form_type: 8-K
- ticker: ISCO
- cik: 0001355790
- company_name: International Stem Cell CORP
- filed_at: 2021-12-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 1.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1355790/000156459021061431/0001564590-21-061431-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1355790/000156459021061431/isco-8k_20211227.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-061431
- JSON: https://secwatch.observer/filing/0001564590-21-061431.json
- Plain text: https://secwatch.observer/filing/0001564590-21-061431.txt

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