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AUTOMATED SEC FILING DILIGENCE BRIEF
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ADAPTIN BIO, INC.

CIK 0001938571Ticker APTNSEC 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 events20

captured official filings

Registration & offering16

captured official filings

Ownership17

captured official filings

Governance0

captured official filings

Other official filing2

captured official filings

PRIORITY FILING CUES

What to review next

Rules are applied to retained SEC filing types in this issuer record. They prioritize reading work; they are not ratings or conclusions.

  1. CRITICAL
    424B32026-09-10 · form-type review cue
    SEC source →
  2. CRITICAL
    EFFECT2026-09-09 · form-type review cue
    SEC source →
  3. WATCH
    S-12026-08-28 · form-type review cue
    SEC source →
  4. CRITICAL
    424B32026-08-25 · form-type review cue
    SEC source →
  5. CRITICAL
    424B32026-08-20 · form-type review cue
    SEC source →
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

What teams can pay to automate next.

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 2026-08-28 with S-1/A filed 2025-07-28.

Earlier SEC filingLatest SEC filing
61latest comparable sentences
59new-text candidates
1prior-text candidates not found

Tracked-term count changes

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

  • offering22 → 9-13
  • shares3 → 14+11
  • management0 → 6+6
  • risk factor0 → 5+5
  • proceeds0 → 3+3
  • control0 → 2+2

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
  • Upon completion of the Merger, an aggregate of $1,500,000 principal amount of Private Adaptin’s outstanding promissory notes, plus accrued interest thereon held by certain Selling Stockholders (the “Note Holders”) automatically converted, at a conversion price of $3.30 per share, into 501,140 shares of Company
  • Additionally, pursuant to existing agreements, some Note Holders received warrants to purchase up to an aggregate of 132,570 shares of our Common Stock at an exercise price of either $3.30 or $4.40 per share and with a term of five years (the “Pre-Merger Warrants,” which are part of the Warrants as defined above).
  • See the section entitled “Shares Eligible for Future Sale.” We will not receive the proceeds from the resale by the Selling Stockholders of the Securities.

The compared excerpts contain no added or removed sentence matching the tracked diligence terms. Review the official filings for any other material change.

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.

ISSUER REVIEW PLAN

What to verify next

Generated from retained official filing types and chronology. This is a work sequence, not legal, accounting, compliance, investment or transaction advice.

  1. Registration & offering path (16 retained)
    Read the latest registration filing, then monitor for an amendment, EFFECT notice or 424B prospectus.
  2. Current disclosure path (7 retained)
    Open the retained current reports and identify the reported item, effective date and later update.
  3. Financial & ownership record (39 retained)
    Review periodic financial, ownership and governance records in their original filing context.

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55 retained SEC filingsLatest retained filing: 2026-09-10.Printable HTML record + CSV official-source indexOne issuer · one payment · no account

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DISCLOSURE CONTEXT SCREEN

Specific public-record cues, separated from generic language

Reads selected SEC filing text by sentence. Contents-page labels, generic risk language and allocation discussion are excluded; historical financing language is kept separate.

  1. FINANCING

    , a Delaware corporation (“Adaptin,” the “Company,” “we,” “us,” or “our”) that were sold to the Selling Stockholders in a private placement offering (the “Follow-On Offering”) and (b) in connection with the Follow-On Offering, the issuance by the Company of up to an aggregate of 38,240 shares of Common Stock issuable upon the exercise of placement agent warrants (“Placement Agent Warrants”) held by Laidlaw & Company (UK) Ltd.

    424B3 · 2026-09-10 · official SEC source ↗

Scope: automated text screening of selected SEC filings only. Each cue requires review of the linked filing; it does not confirm a claim, legal status, tax status, financing completion or current issuer condition.

LEGACY TERM SCREEN · SOURCE INDEX

Financing, legal and disclosure cues

This screen counts source documents with a reading cue, never the number of underlying events. A cue may be generic risk language; open the cited SEC source before drawing any conclusion.

View screened SEC sources (4)
424B3 · 2026-09-10S-1 · 2026-08-288-K · 2026-08-25424B3 · 2026-08-25

Coverage boundary: this is a keyword screen of selected SEC filings only. It is not a court-docket search, tax-compliance review, lien clearance, sanctions screen, adverse-media search or a complete count of financings. A zero result means no matching term in the readable documents screened—not that the underlying issue is absent. Verify each cue in the linked official filing and use the appropriate independent professionals.

CAPITAL & OFFERING RECORD

Official filing path for financing review

Registration, amendment, prospectus, shelf and current-report nodes are organized here as a reading path. Use the SEC source for terms, status and materiality.

Browse all captured financing filings →
4registration / amendment nodes
9prospectus nodes
0shelf / follow-on nodes
6current-report nodes to review
  1. 424B3
    Prospectus / offering documentOpen SEC source →
  2. S-1
    Initial registration statementOpen SEC source →
  3. 8-K
    Current report — review financing contextOpen SEC source →
  4. 424B3
    Prospectus / offering documentOpen SEC source →
  5. 424B3
    Prospectus / offering documentOpen SEC source →
  6. 424B3
    Prospectus / offering documentOpen SEC source →
  7. 424B3
    Prospectus / offering documentOpen SEC source →
  8. 8-K
    Current report — review financing contextOpen SEC source →
  9. 8-K
    Current report — review financing contextOpen SEC source →
  10. 424B3
    Prospectus / offering documentOpen SEC source →
  11. 424B3
    Prospectus / offering documentOpen SEC source →
  12. 8-K
    Current report — review financing contextOpen SEC source →
  13. 424B3
    Prospectus / offering documentOpen SEC source →
  14. 424B3
    Prospectus / offering documentOpen SEC source →
  15. S-1/A
    Registration amendmentOpen SEC source →
  16. S-1/A
    Registration amendmentOpen SEC source →
  17. S-1
    Initial registration statementOpen SEC source →
  18. 8-K
    Current report — review financing contextOpen SEC source →
  19. 8-K
    Current report — review financing contextOpen SEC source →

Interpretation boundary: filing counts are not financing-round counts, proceeds, closing status or current capitalization. A registration, prospectus or report can relate to different purposes; use the linked official filing and appropriate advisers to verify each event.

KEY OFFERING LANGUAGE

What the latest offering documents say

Candidate sentence excerpts from readable official SEC filing text. This provides a fast reading layer for offering structure and terms; it is not a normalized term sheet or a transaction conclusion.

CANDIDATE LANGUAGE OBSERVED

Offering structure

Candidate language describing the securities or registration structure.

“, a Delaware corporation (“Adaptin,” the “Company,” “we,” “us,” or “our”) that were sold to the Selling Stockholders in a private placement offering (the “Follow-On Offering”) and (b) in connection with the Follow-On Offering, the issuance by the Company of up to an aggregate of 38,240 shares of Common Stock issuable upon the exercise of placement agent wa”
424B3 · 2026-09-10 · Open SEC source →
CANDIDATE LANGUAGE OBSERVED

Shares / price

Candidate language about shares, units or offering-price terms.

“, a Delaware corporation (“Adaptin,” the “Company,” “we,” “us,” or “our”) that were sold to the Selling Stockholders in a private placement offering (the “Follow-On Offering”) and (b) in connection with the Follow-On Offering, the issuance by the Company of up to an aggregate of 38,240 shares of Common Stock issuable upon the exercise of placement agent wa”
424B3 · 2026-09-10 · Open SEC source →
CANDIDATE LANGUAGE OBSERVED

Use of proceeds

Candidate language describing stated proceeds or intended use.

“Page ABOUT THIS PROSPECTUS ii CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS iii PROSPECTUS SUMMARY 1 THE OFFERING 7 RISK FACTORS 8 USE OF PROCEEDS 35 MARKET INFORMATION FOR OUR COMMON STOCK 36 BUSINESS OF THE COMPANY 36 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS 51 MANAGEMENT 62 COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS 68 CERTAIN RELATIONSHIPS AND RELATED PERSON T”
424B3 · 2026-09-10 · Open SEC source →
NO CANDIDATE LANGUAGE IN SCREENED TEXT

Convertible / warrant terms

Candidate language about conversion, warrants or related instruments.

No sentence matching this reading cue was found in the 5 readable filings screened.
View offering documents screened (5)
424B3 · 2026-09-10S-1 · 2026-08-28424B3 · 2026-08-25424B3 · 2026-08-20424B3 · 2026-06-12

Extraction boundary: wording can be incomplete, duplicated, conditional or superseded by later filings. The system does not calculate proceeds, share counts, dilution or closing status from these excerpts. Verify every term in the linked official SEC filing.

OFFICIAL SEC SUBMISSIONS

Captured filing chronology

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