---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-161649"
form_type: "8-K"
ticker: "BDSX"
cik: "0001439725"
company_name: "BIODESIX INC"
filed_at: "2023-06-06T23:59:59+00:00"
generated_at: "2026-06-14T06:30:41.301816+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Biodesix appoints Christopher Vazquez as CAO, replacing Ryan Siurek effective July 3, 2023

## Summary
- Ryan Siurek resigned as Chief Accounting Officer, effective July 3, 2023; no disagreement with company.
- Christopher Vazquez, previously VP and Controller since Feb 2021, appointed as CAO effective same date.
- Vazquez will report to CFO; compensation includes equity and annual cash incentive plans per proxy statement.
- No family relationships or related-party transactions between Vazquez and company officers or directors.

## SEC filing metadata
- accession: 0001193125-23-161649
- form_type: 8-K
- ticker: BDSX
- cik: 0001439725
- company_name: BIODESIX INC
- filed_at: 2023-06-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1439725/000119312523161649/0001193125-23-161649-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1439725/000119312523161649/d418639d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-161649
- JSON: https://secwatch.observer/filing/0001193125-23-161649.json
- Plain text: https://secwatch.observer/filing/0001193125-23-161649.txt

## Key facts
- Executive change
  Ryan Siurek resigned as Chief Accounting Officer at BIODESIX INC.
  - Action: resigned
  - Role: Chief Accounting Officer
  source text: On May 31, 2023, Ryan Siurek informed Biodesix, Inc. (“the Company”) of his resignation as Chief Accounting Officer, effective July 3, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1439725/000119312523161649/0001193125-23-161649-index.htm
- Executive change
  Christopher Vazquez was appointed as Chief Accounting Officer at BIODESIX INC.
  - Action: appointed
  - Role: Chief Accounting Officer
  source text: Also effective July 3, 2023, the Company appointed Christopher Vazquez to serve as Chief Accounting Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1439725/000119312523161649/0001193125-23-161649-index.htm

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