---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-012882"
form_type: "8-K"
ticker: "VXRT"
cik: "0000072444"
company_name: "Vaxart, Inc."
filed_at: "2026-04-21T23:59:59+00:00"
generated_at: "2026-05-15T05:13:23.843688+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Vaxart expands Utah Avenue lease by 3,531 sq ft; HQ termination on schedule

## Summary
- Amendment adds two suites totaling 3,531 rentable sq ft at Utah Avenue, South San Francisco.
- Term of the new space is 36 months starting May 14, 2026.
- Previously disclosed Harbor Way HQ lease termination remains effective May 15, 2026.
- No financial terms of the amendment were disclosed.

## SEC filing metadata
- accession: 0001437749-26-012882
- form_type: 8-K
- ticker: VXRT
- cik: 0000072444
- company_name: Vaxart, Inc.
- filed_at: 2026-04-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/72444/000143774926012882/0001437749-26-012882-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/72444/000143774926012882/vxrt20260420_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-012882
- JSON: https://secwatch.observer/filing/0001437749-26-012882.json
- Plain text: https://secwatch.observer/filing/0001437749-26-012882.txt

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