---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-060237"
form_type: "8-K"
ticker: "DCTH"
cik: "0000872912"
company_name: "DELCATH SYSTEMS, INC."
filed_at: "2025-03-21T23:59:59+00:00"
generated_at: "2026-05-24T09:30:15.010281+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Delcath Systems replaces auditor Marcum with CBIZ CPAs effective March 18, 2025

## Summary
- Marcum LLP resigned on March 18, 2025; CBIZ CPAs P.C. engaged as new independent auditor immediately.
- No disagreements or reportable events with Marcum for fiscal years 2023, 2024, and through resignation.
- The 2023 audit report included a going-concern explanatory paragraph about substantial doubt.
- Audit Committee approved the engagement for the fiscal year ending December 31, 2025.

## SEC filing metadata
- accession: 0001193125-25-060237
- form_type: 8-K
- ticker: DCTH
- cik: 0000872912
- company_name: DELCATH SYSTEMS, INC.
- filed_at: 2025-03-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/872912/000119312525060237/0001193125-25-060237-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/872912/000119312525060237/d925045d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-060237
- JSON: https://secwatch.observer/filing/0001193125-25-060237.json
- Plain text: https://secwatch.observer/filing/0001193125-25-060237.txt

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