---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-415560"
form_type: "8-K"
ticker: "BOLT"
cik: "0001641281"
company_name: "Bolt Biotherapeutics, Inc."
filed_at: "2026-10-06T20:07:53+00:00"
generated_at: "2026-10-12T16:20:19.589924+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Bolt Biotherapeutics Amends Redwood City Lease, Pays $1.0M and Accelerates Expiration

## Summary
- Bolt Biotherapeutics entered a Second Amendment to its Chesapeake Master Lease with landlord HCP LS Redwood City LLC on October 1, 2026.
- The company paid $1.0 million and acknowledged HCP LS Redwood City LLC can draw the existing $1.5 million letter of credit in its entirety.
- Lease expiration is accelerated to December 31, 2027, or earlier after closing a financing or other Corporate Transaction.
- A Corporate Transaction closing would trigger an additional $4.5 million termination payment to the landlord.
- Bolt will remit 100% of sublease rent and common area maintenance payments from 800 Building subtenants to the landlord.

## SEC filing metadata
- accession: 0001193125-26-415560
- form_type: 8-K
- ticker: BOLT
- cik: 0001641281
- company_name: Bolt Biotherapeutics, Inc.
- filed_at: 2026-10-06T20:07:53+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1641281/000119312526415560/0001193125-26-415560-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1641281/000119312526415560/bolt-20261001.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-415560
- JSON: https://secwatch.observer/filing/0001193125-26-415560.json
- Plain text: https://secwatch.observer/filing/0001193125-26-415560.txt

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