---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-357931"
form_type: "8-K"
ticker: "GLUE"
cik: "0001826457"
company_name: "Monte Rosa Therapeutics, Inc."
filed_at: "2021-12-15T23:59:59+00:00"
generated_at: "2026-06-28T00:59:49.473565+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Monte Rosa Therapeutics enters 128-month lease for 63,327 sq ft in Boston at $95/sqft base rent

## Summary
- Leased 63,327 sq ft at 321 Harrison Ave, Boston for office/lab space; term starts April 1, 2022.
- Initial term of 128 months (~10.7 years); base rent $95/sqft year one, with 3% annual increases.
- Company has option to extend lease once for 5 years and option to sublet premises.
- Rent obligation begins 8 months after commencement or 2 months after tenant improvements complete.

## SEC filing metadata
- accession: 0001193125-21-357931
- form_type: 8-K
- ticker: GLUE
- cik: 0001826457
- company_name: Monte Rosa Therapeutics, Inc.
- filed_at: 2021-12-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1826457/000119312521357931/0001193125-21-357931-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1826457/000119312521357931/d256750d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-357931
- JSON: https://secwatch.observer/filing/0001193125-21-357931.json
- Plain text: https://secwatch.observer/filing/0001193125-21-357931.txt

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