---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-006239"
form_type: "8-K"
ticker: "LUCD"
cik: "0001799011"
company_name: "Lucid Diagnostics Inc."
filed_at: "2025-04-25T23:59:59+00:00"
generated_at: "2026-05-23T05:59:27.372423+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Lucid Diagnostics changes auditor to CBIZ CPAs after Marcum acquisition

## Summary
- Marcum resigned as auditor on April 23, 2025; CBIZ CPAs engaged same day with audit committee approval.
- No disagreements or reportable events with Marcum during fiscal years 2024 and 2023 through resignation.
- Marcum's audit reports for 2024 and 2023 included a going concern explanatory paragraph.
- Marcum's acquisition by CBIZ CPAs on Nov 1, 2024 triggered the change.

## SEC filing metadata
- accession: 0001641172-25-006239
- form_type: 8-K
- ticker: LUCD
- cik: 0001799011
- company_name: Lucid Diagnostics Inc.
- filed_at: 2025-04-25T23:59:59+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/1799011/000164117225006239/0001641172-25-006239-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1799011/000164117225006239/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-006239
- JSON: https://secwatch.observer/filing/0001641172-25-006239.json
- Plain text: https://secwatch.observer/filing/0001641172-25-006239.txt

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