---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-066171"
form_type: "8-K"
ticker: "ANVS"
cik: "0001477845"
company_name: "Annovis Bio, Inc."
filed_at: "2023-05-30T23:59:59+00:00"
generated_at: "2026-06-14T11:35:30.467474+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Annovis Bio dismisses auditor Withum, appoints EY; material weakness triggered restatement

## Summary
- Withum dismissed as auditor effective May 25, 2023; EY appointed for fiscal 2023.
- Withum's 2022 audit report included a going-concern explanatory paragraph.
- Material weakness in internal controls over R&D expense classification led to restatement of 2022 quarterly financials.
- No disagreements with Withum on accounting principles or practices.
- Restatement affected three months ended March 31, 2022, and subsequent quarters through September 2022.

## SEC filing metadata
- accession: 0001104659-23-066171
- form_type: 8-K
- ticker: ANVS
- cik: 0001477845
- company_name: Annovis Bio, Inc.
- filed_at: 2023-05-30T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1477845/000110465923066171/0001104659-23-066171-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1477845/000110465923066171/tm2317351d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-066171
- JSON: https://secwatch.observer/filing/0001104659-23-066171.json
- Plain text: https://secwatch.observer/filing/0001104659-23-066171.txt

## Key facts
- Auditor Changes
  Annovis Bio, Inc. dismissed WithumSmith+Brown PC as its auditor.
  - Action: dismissal
  - Auditor: WithumSmith+Brown PC
  - Successor: Ernst & Young LLP
  source text: Dismissal of Independent Registered Public Accounting Firm On May 25, 2023, the Audit Committee (the “Audit Committee”) of the Board of Directors of Annovis Bio, Inc. (the “Company”) dismissed WithumSmith+Brown PC (“Withum”) as the Company’s independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1477845/000110465923066171/0001104659-23-066171-index.htm
- Auditor Changes
  Annovis Bio, Inc. engaged Ernst & Young LLP as its auditor.
  - Action: engagement
  - Auditor: Ernst & Young LLP
  source text: Engagement of New Independent Registered Public Accounting Firm Effective May 25, 2023, the Audit Committee approved the appointment of Ernst & Young LLP (“EY”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1477845/000110465923066171/0001104659-23-066171-index.htm

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