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AUTOMATED SEC FILING DILIGENCE BRIEF
PUBLIC-RECORD DELIVERY

BIOLARGO, INC.

CIK 0000880242Ticker BLGOSEC 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 events48

captured official filings

Registration & offering26

captured official filings

Ownership82

captured official filings

Governance4

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 2026-04-09 with S-1/A filed 2023-01-11.

Earlier SEC filingLatest SEC filing
449latest comparable sentences
301new-text candidates
179prior-text candidates not found

Tracked-term count changes

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

  • shares65 → 96+31
  • offering30 → 17-13
  • control46 → 54+8
  • management21 → 29+8
  • proceeds12 → 18+6
  • dilution4 → 7+3

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
  • We are not selling any securities under this prospectus and will not receive any of the proceeds from the sale of shares by the selling stockholder.
  • We may receive up to $10,000,000 aggregate gross proceeds under the Purchase Agreement from any sales we make to the selling stockholder pursuant to the Purchase Agreement after the date of this prospectus.
  • The selling stockholder may sell the shares of common stock described in this prospectus in a number of different ways and at varying prices.
Present in earlier filing, not found in latest
  • PROSPECTUS (Subject to Completion) Dated: [--], 2026 PROSPECTUS 31,730,651 shares of common stock This prospectus relates to the offer and sale of up to 31,730,651 shares of common stock, par value $0.00067, of BioLargo, Inc., a Delaware corporation, by the selling stockholders identified herein (referred to collectively herein
  • These shares are issuable upon exercise of warrants that were issued to the selling stockholders between April 16, 2021, and January 6, 2026, at an average exercise price of $0.265 per share.
  • We are not selling any securities under this prospectus and will not receive any of the proceeds from the sale of shares by the selling stockholders.

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. 4
    OwnershipOpen 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. 4
    OwnershipOpen SEC filing →
  8. 10-Q
    Reporting & material eventsOpen SEC filing →
  9. 8-K
    Reporting & material eventsOpen SEC filing →
  10. 8-K
    Reporting & material eventsOpen SEC filing →
  11. 10-K/A
    Reporting & material eventsOpen SEC filing →
  12. 424B4
    Registration & offeringOpen SEC filing →
  13. 424B4
    Registration & offeringOpen SEC filing →
  14. EFFECT
    Registration & offeringOpen SEC filing →
  15. EFFECT
    Registration & offeringOpen SEC filing →
  16. S-1
    Registration & offeringOpen SEC filing →
  17. S-1
    Registration & offeringOpen SEC filing →
  18. 4
    OwnershipOpen SEC filing →
  19. 4
    OwnershipOpen SEC filing →
  20. 4
    OwnershipOpen SEC filing →
  21. 4
    OwnershipOpen SEC filing →
  22. 4
    OwnershipOpen SEC filing →
  23. 8-K
    Reporting & material eventsOpen SEC filing →
  24. 8-K
    Reporting & material eventsOpen SEC filing →
  25. 10-K
    Reporting & material eventsOpen SEC filing →
  26. 4
    OwnershipOpen SEC filing →
  27. 5
    OwnershipOpen 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. 8-K
    Reporting & material eventsOpen SEC filing →
  35. 4
    OwnershipOpen SEC filing →
  36. 4
    OwnershipOpen SEC filing →
  37. 10-Q
    Reporting & material eventsOpen SEC filing →
  38. 8-K
    Reporting & material eventsOpen SEC filing →
  39. 8-K
    Reporting & material eventsOpen SEC filing →
  40. 4
    OwnershipOpen SEC filing →
  41. 4
    OwnershipOpen SEC filing →
  42. 4
    OwnershipOpen SEC filing →
  43. 4
    OwnershipOpen SEC filing →
  44. 8-K
    Reporting & material eventsOpen SEC filing →
  45. 8-K
    Reporting & material eventsOpen SEC filing →
  46. 10-Q
    Reporting & material eventsOpen SEC filing →
  47. 8-K
    Reporting & material eventsOpen SEC filing →
  48. 4
    OwnershipOpen SEC filing →
  49. 4
    OwnershipOpen SEC filing →
  50. 4
    OwnershipOpen SEC filing →
  51. 4
    OwnershipOpen SEC filing →
  52. 4
    OwnershipOpen SEC filing →
  53. 4
    OwnershipOpen SEC filing →
  54. 8-K
    Reporting & material eventsOpen SEC filing →
  55. 424B4
    Registration & offeringOpen SEC filing →
  56. EFFECT
    Registration & offeringOpen SEC filing →
  57. 8-K
    Reporting & material eventsOpen SEC filing →
  58. 10-Q
    Reporting & material eventsOpen SEC filing →
  59. 424B4
    Registration & offeringOpen SEC filing →
  60. DEF 14A
    GovernanceOpen 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.