---
schema_version: "secwatch.filing_event.v1"
accession: "0001279569-23-000429"
form_type: "8-K"
ticker: "ITHUF"
cik: "0001643154"
company_name: "iANTHUS CAPITAL HOLDINGS, INC."
filed_at: "2023-04-05T23:59:59+00:00"
generated_at: "2026-06-17T05:51:59.198723+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# iAnthus Capital dismisses Marcum LLP, appoints PKF O'Connor Davies as auditor for FY2023

## Summary
- Marcum LLP dismissed as independent auditor effective March 30, 2023; PKF O'Connor Davies appointed for fiscal year ending Dec 31, 2023.
- Marcum's reports for FY2021 and FY2022 contained no adverse opinion except a going-concern explanatory paragraph.
- No disagreements on accounting principles or audit scope between iAnthus and Marcum during the two most recent fiscal years.
- Material weaknesses previously disclosed in the 2022 and 2021 Annual Reports on Form 10-K remain identified.

## SEC filing metadata
- accession: 0001279569-23-000429
- form_type: 8-K
- ticker: ITHUF
- cik: 0001643154
- company_name: iANTHUS CAPITAL HOLDINGS, INC.
- filed_at: 2023-04-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 4.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1643154/000127956923000429/0001279569-23-000429-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643154/000127956923000429/form8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001279569-23-000429
- JSON: https://secwatch.observer/filing/0001279569-23-000429.json
- Plain text: https://secwatch.observer/filing/0001279569-23-000429.txt

## Key facts
- Auditor Changes
  iANTHUS CAPITAL HOLDINGS, INC. dismissed Marcum LLP as its auditor.
  - Action: dismissal
  - Auditor: Marcum LLP
  - Successor: PKF O'Connor Davies, LLP
  source text: Marcum LLP (“Marcum”) was terminated effective as of March 30, 2023. Marcum reported on the Company’s consolidated
  evidence_url: https://www.sec.gov/Archives/edgar/data/1643154/000127956923000429/0001279569-23-000429-index.htm
- Auditor Changes
  iANTHUS CAPITAL HOLDINGS, INC. engaged PKF O'Connor Davies, LLP as its auditor.
  - Action: engagement
  - Auditor: PKF O'Connor Davies, LLP
  source text: the Committee approved the appointment of PKF O'Connor Davies, LLP ("PKFOD") 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/1643154/000127956923000429/0001279569-23-000429-index.htm

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