---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-013232"
form_type: "8-K"
ticker: "VXRT"
cik: "0000072444"
company_name: "Vaxart, Inc."
filed_at: "2025-04-28T23:59:59+00:00"
generated_at: "2026-05-23T05:22:28.610139+00:00"
event_type: "regulatory"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# BARDA lifts stop work order on Vaxart norovirus trial; 10,000-participant screening to resume

## Summary
- Stop work order lifted April 24, 2025 by ATI/BARDA; company may resume incurring costs.
- Virtual meeting with BARDA confirmed Vaxart can proceed with screening 10,000 participants.
- Company intends to reactivate field sites and screen participants for enrollment.
- Discussions with BARDA ongoing regarding dosing plan, costs, timelines, and regulatory pathway.
- Previously all work except per-protocol follow-up for 400-person cohort had been halted.

## SEC filing metadata
- accession: 0001437749-25-013232
- form_type: 8-K
- ticker: VXRT
- cik: 0000072444
- company_name: Vaxart, Inc.
- filed_at: 2025-04-28T23:59:59+00:00
- event_type: regulatory
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/72444/000143774925013232/0001437749-25-013232-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/72444/000143774925013232/vxrt20250426_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-013232
- JSON: https://secwatch.observer/filing/0001437749-25-013232.json
- Plain text: https://secwatch.observer/filing/0001437749-25-013232.txt

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