---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-108552"
form_type: "8-K"
ticker: "PFSA"
cik: "0001859807"
company_name: "Profusa, Inc."
filed_at: "2026-10-09T21:00:13+00:00"
generated_at: "2026-10-12T15:02:11.446755+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Profusa dismisses CBIZ as auditor and engages WithumSmith+Brown for fiscal 2026

## Summary
- On October 5, 2026, Profusa dismissed CBIZ CPAs P.C. as independent registered public accounting firm; Audit Committee and Board approved.
- CBIZ's report on fiscal year ended December 31, 2025 had a going-concern explanatory paragraph but no adverse opinion or disclaimer.
- No disagreements or reportable events except material weaknesses in segregation of duties, review controls, and technical accounting; not remediated as of June 30, 2026.
- On October 6, 2026, Profusa engaged WithumSmith+Brown, PC for fiscal year ending December 31, 2026; approval occurred September 30, 2026.
- Exhibit 16.1 is CBIZ's letter dated October 9, 2026; the filing is signed by CFO Fred Knechtel.

## SEC filing metadata
- accession: 0001213900-26-108552
- form_type: 8-K
- ticker: PFSA
- cik: 0001859807
- company_name: Profusa, Inc.
- filed_at: 2026-10-09T21:00:13+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1859807/000121390026108552/0001213900-26-108552-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1859807/000121390026108552/ea0308134-8k_profusa.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-108552
- JSON: https://secwatch.observer/filing/0001213900-26-108552.json
- Plain text: https://secwatch.observer/filing/0001213900-26-108552.txt

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