---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-23-036351"
form_type: "8-K"
ticker: "IMDX"
cik: "0001642380"
company_name: "Insight Molecular Diagnostics Inc."
filed_at: "2023-10-05T23:59:59+00:00"
generated_at: "2026-06-10T04:01:34.334836+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Oncocyte dismisses Withum, engages Marcum as independent auditor for FY 2023

## Summary
- Withum dismissed as independent registered public accounting firm on September 29, 2023.
- Audit Committee approved Marcum LLP as new auditor for fiscal year ending December 31, 2023.
- Withum's reports for FY 2021 and FY 2022 were unqualified; no disagreements reported.
- A material weakness in internal controls was identified and remediated prior to June 30, 2023.
- Withum furnished a letter agreeing with the company's disclosures, attached as Exhibit 16.1.

## SEC filing metadata
- accession: 0001493152-23-036351
- form_type: 8-K
- ticker: IMDX
- cik: 0001642380
- company_name: Insight Molecular Diagnostics Inc.
- filed_at: 2023-10-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1642380/000149315223036351/0001493152-23-036351-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1642380/000149315223036351/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-23-036351
- JSON: https://secwatch.observer/filing/0001493152-23-036351.json
- Plain text: https://secwatch.observer/filing/0001493152-23-036351.txt

## Key facts
- Auditor Changes
  Insight Molecular Diagnostics Inc. engaged Marcum LLP as its auditor.
  - Action: engagement
  - Auditor: Marcum LLP
  source text: the Audit Committee approved the engagement of Marcum LLP (“ Marcum ”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2023, subject to Marcum’s completion of their client acceptance procedures.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1642380/000149315223036351/0001493152-23-036351-index.htm
- Auditor Changes
  Insight Molecular Diagnostics Inc. dismissed WithumSmith+Brown, PC as its auditor.
  - Action: dismissal
  - Auditor: WithumSmith+Brown, PC
  - Successor: Marcum LLP
  source text: The Company has dismissed WithumSmith+Brown, PC (“ Withum ”) as independent registered public accounting firm of the Company on September 29, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1642380/000149315223036351/0001493152-23-036351-index.htm

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