---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-003034"
form_type: "8-K"
ticker: "ZVSA"
cik: "0001859007"
company_name: "ZyVersa Therapeutics, Inc."
filed_at: "2025-04-07T23:59:59+00:00"
generated_at: "2026-05-23T20:14:13.858147+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ZyVersa Therapeutics replaces auditor Marcum LLP with CBIZ CPAs; notes material weaknesses and going concern

## Summary
- Marcum resigned as auditor effective April 4, 2025; CBIZ CPAs engaged April 7 after acquiring Marcum's attest practice.
- Marcum's reports for FY2023 and FY2024 included an explanatory paragraph about substantial doubt on the company's ability to continue as a going concern.
- Company disclosed material weaknesses in internal control over financial reporting for both FY2023 and FY2024, including lack of segregation of duties.
- No disagreements on accounting principles occurred between the company and Marcum during the relevant periods.
- Marcum furnished a letter agreeing with the statements; filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001641172-25-003034
- form_type: 8-K
- ticker: ZVSA
- cik: 0001859007
- company_name: ZyVersa Therapeutics, Inc.
- filed_at: 2025-04-07T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1859007/000164117225003034/0001641172-25-003034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1859007/000164117225003034/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-003034
- JSON: https://secwatch.observer/filing/0001641172-25-003034.json
- Plain text: https://secwatch.observer/filing/0001641172-25-003034.txt

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