---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-074575"
form_type: "8-K"
ticker: "ALT"
cik: "0001326190"
company_name: "Altimmune, Inc."
filed_at: "2026-06-16T20:05:35+00:00"
generated_at: "2026-06-16T20:12:02.045670+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Altimmune plans HQ move from Gaithersburg, MD to Morristown, NJ

## Summary
- Announced on June 16, 2026, relocation expected later this year.
- New 5-year lease with annual rent of approximately $300,000.
- Move to biopharma hub in NJ to support talent attraction in hybrid model.
- Company expects long-term cost efficiencies from the relocation.
- Headquarters change from 910 Clopper Road, Gaithersburg to Morristown.

## SEC filing metadata
- accession: 0001104659-26-074575
- form_type: 8-K
- ticker: ALT
- cik: 0001326190
- company_name: Altimmune, Inc.
- filed_at: 2026-06-16T20:05:35+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326190/000110465926074575/0001104659-26-074575-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1326190/000110465926074575/tm2618087d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-074575
- JSON: https://secwatch.observer/filing/0001104659-26-074575.json
- Plain text: https://secwatch.observer/filing/0001104659-26-074575.txt

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