---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-249124"
form_type: "8-K"
ticker: "TCRX"
cik: "0001783328"
company_name: "TScan Therapeutics, Inc."
filed_at: "2024-11-01T23:59:59+00:00"
generated_at: "2026-05-30T07:01:03.541388+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# TScan Therapeutics expands leased space by ~25,628 sq ft at Waltham HQ through 2029

## Summary
- Lease amendment adds 25,628 rentable sq ft to existing 25,472 sq ft at 830 Winter St, Waltham, MA.
- New term runs from Q4 2024 to Oct 31, 2029; initial monthly base rent $163,378.50.
- Rent escalates annually: $168,279.86 (yr 2), $173,328.25 (yr 3), $178,528.10 (yr 4), $183,883.94 (yr 5).
- Landlord provides tenant improvement allowance of up to ~$2,681,540.

## SEC filing metadata
- accession: 0001193125-24-249124
- form_type: 8-K
- ticker: TCRX
- cik: 0001783328
- company_name: TScan Therapeutics, Inc.
- filed_at: 2024-11-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1783328/000119312524249124/0001193125-24-249124-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1783328/000119312524249124/d891090d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-249124
- JSON: https://secwatch.observer/filing/0001193125-24-249124.json
- Plain text: https://secwatch.observer/filing/0001193125-24-249124.txt

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