---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-053192"
form_type: "8-K"
ticker: "ISCO"
cik: "0001355790"
company_name: "International Stem Cell CORP"
filed_at: "2021-11-01T23:59:59+00:00"
generated_at: "2026-06-28T15:39:34.081194+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 signs lease for new HQ in San Diego; related-party transaction

## Summary
- Lease covers 7,260 sq ft at 9745 Businesspark Ave, San Diego, consolidating Carlsbad and Oceanside offices.
- Initial combined base rent $10,890/month, escalating to $12,933.90 by lease end (Dec 31, 2026).
- Term starts Nov 1, 2021, for 5 years and 2 months through Dec 31, 2026.
- Co-tenant S Real Estate Holdings LLC owned by EVP/CSO Dr. Russell Kern, previously owned by CEO Dr. Andrey Semechkin.
- Company also responsible for insurance, maintenance, taxes, and operating expenses per lease.

## SEC filing metadata
- accession: 0001564590-21-053192
- form_type: 8-K
- ticker: ISCO
- cik: 0001355790
- company_name: International Stem Cell CORP
- filed_at: 2021-11-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 1.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1355790/000156459021053192/0001564590-21-053192-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1355790/000156459021053192/isco-8k_20211026.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-053192
- JSON: https://secwatch.observer/filing/0001564590-21-053192.json
- Plain text: https://secwatch.observer/filing/0001564590-21-053192.txt

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