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AUTOMATED SEC FILING DILIGENCE BRIEF
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Vaxart, Inc.

CIK 0000072444Ticker VXRTSEC observed OTC

Automatically organized from the issuer’s official SEC submissions index. This brief is the starting evidence layer for buyer, FA, legal and broker-dealer review—not a legal conclusion or safety rating.

Open issuer dossier
Reporting & material events71

captured official filings

Registration & offering10

captured official filings

Ownership72

captured official filings

Governance7

captured official filings

WHAT THIS AUTOMATES

One evidence index instead of a manual filing hunt.

It groups recent reporting, registration/offer, ownership and governance filings, preserves the SEC source link and keeps a reusable chronology in the issuer’s record.

PROFESSIONAL DELIVERY LAYER

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Cross-version text comparison, monitored alerts, change-specific diligence questions, CSV/PDF exports and a shared deal-team brief are the professional workflow built on this public evidence layer.

MACHINE-DETECTED FILING CHANGE RADAR

Public registration text delta

Comparing S-1 filed 2026-05-08 with S-1/A filed 2026-05-18.

Earlier SEC filingLatest SEC filing
29latest comparable sentences
27new-text candidates
289prior-text candidates not found

Tracked-term count changes

Counts are navigation signals, not conclusions. Open both official filings to determine materiality.

  • shares91 → 0-91
  • proceeds24 → 0-24
  • offering30 → 15-15
  • dilution10 → 0-10
  • risk factor10 → 0-10
  • management22 → 12-10

Candidate disclosure excerpts

Only sentence-level additions or removals containing tracked diligence terms are shown. These are reading cues, not materiality findings.

New in latest filing
  • Ltd. and Sankyo Company, Ltd. 10-Q 001-35285 10.6 May 10, 2013 10.3 Amendment #2 to Collaboration and License Agreement, dated March 27, 2009, between Biota Holdings Limited, Biota Scientific Management Pty.
  • Ltd. and Daiichi Sankyo Company, Limited 10-Q 001-35285 10.7 May 10, 2013 II-3 10.4 + Commercialization Agreement dated March 27, 2009, between Biota Holdings Limited, Biota Scientific Management Pty.
  • Ltd and Daiichi Sankyo Company, Ltd. 10-Q 001-35285 10.8 May 10, 2013 10.5 + Contract dated March 31, 2011, between Biota Scientific Management Pty.
Present in earlier filing, not found in latest
  • PRELIMINARY PROSPECTUS SUBJECT TO COMPLETION DATED May 7 , 2026 32,914,599 Shares of Common Stock Vaxart, Inc.
  • We are not selling any securities under this prospectus and will not receive any of the proceeds from the resale by the selling stockholder of shares of common stock under this prospectus.
  • However, we may receive proceeds of up to $25 million from our sale of Purchase Shares, if any, to Lincoln Park under the Purchase Agreement, from time to time in our discretion after the date the registration statement of which this prospectus is a part is declared effective and the other conditions in the Purchase Agreement ha

Method: readable plain text is extracted from two official SEC HTML filings, then compared at sentence and tracked-term level. Formatting, exhibit differences and boilerplate may create false positives. This radar is not legal advice, a disclosure completeness opinion or a transaction recommendation.

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OFFICIAL SEC SUBMISSIONS

Captured filing chronology

Open Evidence Snapshot →
  1. 8-K
    Reporting & material eventsOpen SEC filing →
  2. 4
    OwnershipOpen SEC filing →
  3. 4
    OwnershipOpen SEC filing →
  4. 4
    OwnershipOpen SEC filing →
  5. 4
    OwnershipOpen SEC filing →
  6. 4
    OwnershipOpen SEC filing →
  7. 8-K
    Reporting & material eventsOpen SEC filing →
  8. 8-K
    Reporting & material eventsOpen SEC filing →
  9. 8-K
    Reporting & material eventsOpen SEC filing →
  10. 8-K
    Reporting & material eventsOpen SEC filing →
  11. 4
    OwnershipOpen SEC filing →
  12. 4
    OwnershipOpen SEC filing →
  13. 8-K
    Reporting & material eventsOpen SEC filing →
  14. 424B3
    Registration & offeringOpen SEC filing →
  15. EFFECT
    Registration & offeringOpen SEC filing →
  16. S-1/A
    Registration & offeringOpen SEC filing →
  17. S-1
    Registration & offeringOpen SEC filing →
  18. 10-Q
    Reporting & material eventsOpen SEC filing →
  19. 8-K
    Reporting & material eventsOpen SEC filing →
  20. 424B5
    Registration & offeringOpen SEC filing →
  21. 4
    OwnershipOpen SEC filing →
  22. 3
    OwnershipOpen SEC filing →
  23. EFFECT
    Registration & offeringOpen SEC filing →
  24. 10-K/A
    Reporting & material eventsOpen SEC filing →
  25. 8-K
    Reporting & material eventsOpen SEC filing →
  26. 8-K
    Reporting & material eventsOpen SEC filing →
  27. 8-K
    Reporting & material eventsOpen SEC filing →
  28. 4
    OwnershipOpen SEC filing →
  29. 4
    OwnershipOpen SEC filing →
  30. 4
    OwnershipOpen SEC filing →
  31. 4
    OwnershipOpen SEC filing →
  32. 4
    OwnershipOpen SEC filing →
  33. 4
    OwnershipOpen SEC filing →
  34. 4
    OwnershipOpen SEC filing →
  35. 4
    OwnershipOpen SEC filing →
  36. 4
    OwnershipOpen SEC filing →
  37. 4
    OwnershipOpen SEC filing →
  38. 4
    OwnershipOpen SEC filing →
  39. 4
    OwnershipOpen SEC filing →
  40. 4
    OwnershipOpen SEC filing →
  41. 4
    OwnershipOpen SEC filing →
  42. 4
    OwnershipOpen SEC filing →
  43. 10-K
    Reporting & material eventsOpen SEC filing →
  44. 8-K
    Reporting & material eventsOpen SEC filing →
  45. 4
    OwnershipOpen SEC filing →
  46. 4
    OwnershipOpen SEC filing →
  47. 4
    OwnershipOpen SEC filing →
  48. 8-K
    Reporting & material eventsOpen SEC filing →
  49. 4
    OwnershipOpen SEC filing →
  50. 4
    OwnershipOpen SEC filing →
  51. 4
    OwnershipOpen SEC filing →
  52. 10-Q
    Reporting & material eventsOpen SEC filing →
  53. 8-K
    Reporting & material eventsOpen SEC filing →
  54. 424B5
    Registration & offeringOpen SEC filing →
  55. 8-K
    Reporting & material eventsOpen SEC filing →
  56. 8-K
    Reporting & material eventsOpen SEC filing →
  57. 8-K
    Reporting & material eventsOpen SEC filing →
  58. 8-K
    Reporting & material eventsOpen SEC filing →
  59. 8-K
    Reporting & material eventsOpen SEC filing →
  60. 8-K
    Reporting & material eventsOpen SEC filing →
Evidence boundary

Only official SEC submission-index facts are automated here. The brief does not determine shell status, beneficial ownership, capitalization, legal compliance, valuation, active-trading status or transaction suitability. Those questions require the appropriate source documents and independently retained professionals.