---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-203746"
form_type: "8-K"
ticker: "BDSX"
cik: "0001439725"
company_name: "BIODESIX INC"
filed_at: "2025-09-15T23:59:59+00:00"
generated_at: "2026-05-17T06:36:50.161925+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Biodesix effects 1-for-20 reverse stock split, eliminates Series A preferred

## Summary
- Reverse stock split at 1:20 ratio effective Sep 15, 2025; new CUSIP 09075X207.
- No fractional shares issued; cash-in-lieu based on closing price before effective date.
- Certificate of Elimination for Series A Non-Voting Convertible Preferred filed Sep 12, 2025.
- Stockholder approval obtained May 20, 2025; Board set final ratio on Sep 4, 2025.

## SEC filing metadata
- accession: 0001193125-25-203746
- form_type: 8-K
- ticker: BDSX
- cik: 0001439725
- company_name: BIODESIX INC
- filed_at: 2025-09-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1439725/000119312525203746/0001193125-25-203746-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1439725/000119312525203746/d14130d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-203746
- JSON: https://secwatch.observer/filing/0001193125-25-203746.json
- Plain text: https://secwatch.observer/filing/0001193125-25-203746.txt

## Key facts
- Governance Changes
  BIODESIX INC: Filed a Certificate of Elimination to remove provisions related to Series A Non-Voting Convertible Preferred Stock (effective 2025-09-12).
  - Change: charter amendment
  - Effective: 2025-09-12
  source text: On September 12, 2025, Company filed a Certificate of Elimination of the Series A Non-Voting Convertible Preferred Stock (the “Certificate of Elimination”) with the Delaware Secretary of State effecting the elimination of all provisions of the Certificate of Designations previously filed by the Company with the Delaware Secretary of State on April 8, 2024 related to a series of preferred stock designated as Series A Non-Voting Convertible Preferred Stock.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1439725/000119312525203746/0001193125-25-203746-index.htm
- Governance Changes
  BIODESIX INC: Effected a one-for-twenty reverse stock split via amendment to the charter (effective 2025-09-15).
  - Change: charter amendment
  - Effective: 2025-09-15
  source text: Following such approval, the Company filed an amendment to its Charter (the “Reverse Split Amendment”) with the Secretary of State of the State of Delaware (the “Delaware Secretary of State”) to effect the Reverse Stock Split, with an effective time of 12:01 a.m. Eastern Time on September 15, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1439725/000119312525203746/0001193125-25-203746-index.htm

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