---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-008311"
form_type: "8-K"
ticker: null
cik: "0001537561"
company_name: "Arch Therapeutics, Inc."
filed_at: "2024-03-18T23:59:59+00:00"
generated_at: "2026-06-04T15:07:07.783324+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Arch Therapeutics closes $648K convertible note tranche, extends note maturity

## Summary
- Fourth closing issued $648K aggregate principal (with $108K OID), warrants for 130,383 shares, and 9,779 inducement shares; net proceeds ~$450K.
- Notes amended: upon uplist, 95% of outstanding principal auto-converts at $0.50; maturity and uplist deadline extended to April 30, 2024.
- Fourth Notes bear 10% interest, convertible at $9.14, and have default premium of 125%.
- Fourth Warrants priced at $9.94, 5-year term, with beneficial ownership limitation of 4.99%-9.99%.
- Company intends proceeds for working capital; prior notes also amended (Amendments No. 15, 10, 1).

## SEC filing metadata
- accession: 0001437749-24-008311
- form_type: 8-K
- cik: 0001537561
- company_name: Arch Therapeutics, Inc.
- filed_at: 2024-03-18T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537561/000143774924008311/0001437749-24-008311-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537561/000143774924008311/arch20240315_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-008311
- JSON: https://secwatch.observer/filing/0001437749-24-008311.json
- Plain text: https://secwatch.observer/filing/0001437749-24-008311.txt

## Key facts
- Material Agreements
  Arch Therapeutics, Inc. entered into Amendment No. 3 to the SPA with certain Investors valued at $648,000 (effective 2024-03-12).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: certain Investors
  - Value: $648,000
  - Effective: 2024-03-12
  source text: ), with certain Investors in connection with the fourth closing of the Convertible Notes Offering for the issuance and sale by the Company to such Investors of an aggregate of (i) Unsecured Convertible Promissory Notes
  evidence_url: https://www.sec.gov/Archives/edgar/data/1537561/000143774924008311/0001437749-24-008311-index.htm

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