---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-004995"
form_type: "8-K"
ticker: "PVCT"
cik: "0000315545"
company_name: "PROVECTUS BIOPHARMACEUTICALS, INC."
filed_at: "2025-04-16T23:59:59+00:00"
generated_at: "2026-05-23T13:59:49.956852+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Provectus BioPharma appoints CBIZ as new auditor following Marcum acquisition

## Summary
- Marcum LLP resigned as independent auditor on April 15, 2025, due to its acquisition by CBIZ.
- Audit Committee approved engagement of CBIZ CPAs P.C. as successor auditor on the same date.
- No disagreements or reportable events occurred with Marcum during 2024, 2023, or through resignation date.
- Audit reports for fiscal years 2024 and 2023 were unmodified and not qualified.
- Marcum letter agreeing with statements filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001641172-25-004995
- form_type: 8-K
- ticker: PVCT
- cik: 0000315545
- company_name: PROVECTUS BIOPHARMACEUTICALS, INC.
- filed_at: 2025-04-16T23:59:59+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/315545/000164117225004995/0001641172-25-004995-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/315545/000164117225004995/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-004995
- JSON: https://secwatch.observer/filing/0001641172-25-004995.json
- Plain text: https://secwatch.observer/filing/0001641172-25-004995.txt

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