---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-23-045948"
form_type: "8-K"
ticker: "ZVSA"
cik: "0001859007"
company_name: "ZyVersa Therapeutics, Inc."
filed_at: "2023-12-22T23:59:59+00:00"
generated_at: "2026-06-07T08:19:45.025872+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ZyVersa Therapeutics dismisses Ernst & Young, appoints Marcum as auditor

## Summary
- Dismissed EY as independent auditor on Dec 22, 2023; EY served from 2019 through Q3 2023 and interim period.
- EY's audit reports for FY2022 and FY2021 included going-concern explanatory paragraph about substantial doubt.
- No disagreements with EY; material weaknesses in internal controls over complex transactions were disclosed in 2022 10-K.
- Audit Committee appointed Marcum LLP as new independent registered public accounting firm for FY2023.
- No prior consultations with Marcum regarding accounting principles or audit opinions.

## SEC filing metadata
- accession: 0001493152-23-045948
- form_type: 8-K
- ticker: ZVSA
- cik: 0001859007
- company_name: ZyVersa Therapeutics, Inc.
- filed_at: 2023-12-22T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- 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/1859007/000149315223045948/0001493152-23-045948-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1859007/000149315223045948/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-23-045948
- JSON: https://secwatch.observer/filing/0001493152-23-045948.json
- Plain text: https://secwatch.observer/filing/0001493152-23-045948.txt

## Key facts
- Auditor Changes
  ZyVersa Therapeutics, Inc. engaged Marcum LLP as its auditor.
  - Action: engagement
  - Auditor: Marcum LLP
  source text: On December 22, 2023, the Audit Committee appointed Marcum as the Company’s new independent registered public accounting firm commencing with the Company’s fiscal year ending December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1859007/000149315223045948/0001493152-23-045948-index.htm
- Auditor Changes
  ZyVersa Therapeutics, Inc. dismissed Ernst & Young LLP as its auditor.
  - Action: dismissal
  - Auditor: Ernst & Young LLP
  - Successor: Marcum LLP
  source text: dismissed Ernst & Young LLP ("EY") as the Company’s independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1859007/000149315223045948/0001493152-23-045948-index.htm

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