---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-24-000024"
form_type: "8-K"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2024-01-04T23:59:59+00:00"
generated_at: "2026-06-07T03:48:49.025975+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Illumina CCO Susan Tousi departs; Bas Verhoef named interim CCO

## Summary
- Susan Tousi, Chief Commercial Officer, leaves Illumina effective January 5, 2024.
- Bas Verhoef, Head of Region – Europe, appointed Interim Chief Commercial Officer.
- Announcement made on January 4, 2024.

## SEC filing metadata
- accession: 0000950157-24-000024
- form_type: 8-K
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2024-01-04T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000095015724000024/0000950157-24-000024-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000095015724000024/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-24-000024
- JSON: https://secwatch.observer/filing/0000950157-24-000024.json
- Plain text: https://secwatch.observer/filing/0000950157-24-000024.txt

## Key facts
- Executive change
  Bas Verhoef was appointed as Chief Commercial Officer at ILLUMINA, INC..
  - Action: appointed
  - Role: Chief Commercial Officer
  source text: Bas Verhoef, Head of Region – Europe, will serve as Interim Chief Commercial Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1110803/000095015724000024/0000950157-24-000024-index.htm
- Executive change
  Susan Tousi departed as Chief Commercial Officer at ILLUMINA, INC..
  - Action: leaving
  - Role: Chief Commercial Officer
  source text: Susan Tousi, Chief Commercial Officer, will be leaving the Company effective as of January 5, 2024
  evidence_url: https://www.sec.gov/Archives/edgar/data/1110803/000095015724000024/0000950157-24-000024-index.htm

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