---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-159226"
form_type: "8-K"
ticker: "KLRS"
cik: "0001754068"
company_name: "Kalaris Therapeutics, Inc."
filed_at: "2024-06-11T23:59:59+00:00"
generated_at: "2026-06-01T05:05:57.094318+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# AlloVir terminates Waltham sublease, agrees to pay $5.7M termination fee

## Summary
- Sublease terminated effective June 30, 2024; originally set to expire July 31, 2028.
- AlloVir will pay $5.7 million termination fee to AMAG Pharmaceuticals.
- AlloVir released from future rent obligations; no restoration beyond broom-clean required.
- Security deposit of $297,717 to be returned per sublease terms.
- Landlord BP Bay Colony LLC consented to termination on June 5, 2024.

## SEC filing metadata
- accession: 0001193125-24-159226
- form_type: 8-K
- ticker: KLRS
- cik: 0001754068
- company_name: Kalaris Therapeutics, Inc.
- filed_at: 2024-06-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1754068/000119312524159226/0001193125-24-159226-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1754068/000119312524159226/d830314d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-159226
- JSON: https://secwatch.observer/filing/0001193125-24-159226.json
- Plain text: https://secwatch.observer/filing/0001193125-24-159226.txt

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