---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-001286"
form_type: "8-K"
ticker: null
cik: "0001537561"
company_name: "Arch Therapeutics, Inc."
filed_at: "2024-01-12T23:59:59+00:00"
generated_at: "2026-06-06T23:52:33.340496+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Arch Therapeutics dismisses Baker Tilly, appoints Weinberg & Company as auditor

## Summary
- Audit committee dismissed Baker Tilly effective Jan 9, 2024; appointed Weinberg & Company.
- Baker Tilly's reports for FY2022 and FY2021 included a going concern explanatory paragraph.
- No disagreements or reportable events between the company and Baker Tilly in relevant periods.
- Baker Tilly's letter to SEC regarding this change is filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001437749-24-001286
- form_type: 8-K
- cik: 0001537561
- company_name: Arch Therapeutics, Inc.
- filed_at: 2024-01-12T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537561/000143774924001286/0001437749-24-001286-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537561/000143774924001286/arch20240109_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-001286
- JSON: https://secwatch.observer/filing/0001437749-24-001286.json
- Plain text: https://secwatch.observer/filing/0001437749-24-001286.txt

## Key facts
- Auditor Changes
  Arch Therapeutics, Inc. engaged Weinberg & Company, P.A. as its auditor.
  - Action: engagement
  - Auditor: Weinberg & Company, P.A.
  source text: On January 9, 2024, the Audit Committee approved the appointment of Weinberg & Company, P.A. (“Weinberg”) as the Company’s new independent registered public accounting firm, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1537561/000143774924001286/0001437749-24-001286-index.htm
- Auditor Changes
  Arch Therapeutics, Inc. dismissed Baker Tilly US, LLP as its auditor.
  - Action: dismissal
  - Auditor: Baker Tilly US, LLP
  - Successor: Weinberg & Company, P.A.
  source text: On January 9, 2024, the Audit Committee of the Board of Directors (the “Audit Committee”) of Arch Therapeutics, Inc. (the “Company”) dismissed Baker Tilly US, LLP (“Baker Tilly”) as the Company’s independent registered public accounting firm, effectively immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1537561/000143774924001286/0001437749-24-001286-index.htm

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