secwatch.observer — SEC 8-K summary ====================================== Issuer: Vaxart, Inc. (VXRT) CIK: 0000072444 Form: 8-K Filed at: 2025-06-11T23:59:59+00:00 Accession: 0001437749-25-020040 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Vaxart Phase 1 norovirus vaccine data: 141% (GI.1) and 94% (GII.4) antibody titer increases vs first-gen -------------------------------------------------------------------------------- - Second-gen constructs showed 141% increase in GI.1 and 94% increase in GII.4 NBAA titers vs first-gen at high dose, statistically significant. - All constructs safe and well-tolerated; no vaccine-related serious adverse events reported. - Vaxart plans Phase 2b as early as H2 2025, Phase 3 potentially in 2026, pending partnership/funding. - Company believes data supports potential for first-in-class or best-in-class oral norovirus vaccine. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/72444/000143774925020040/0001437749-25-020040-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/72444/000143774925020040/vxrt20250611_8k.htm HTML page: https://secwatch.observer/filing/0001437749-25-020040 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer