---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-23-000666"
form_type: "8-K"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2023-06-13T23:59:59+00:00"
generated_at: "2026-06-14T01:49:32.229663+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Illumina CEO Francis deSouza resigns; Charles Dadswell named interim CEO

## Summary
- Francis deSouza resigned as CEO and director effective June 11, 2023.
- Charles Dadswell, SVP and General Counsel, appointed interim CEO.
- Board conducting search for permanent CEO, considering internal and external candidates.
- deSouza will serve in advisory role until July 31, 2023.

## SEC filing metadata
- accession: 0000950157-23-000666
- form_type: 8-K
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2023-06-13T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000095015723000666/0000950157-23-000666-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000095015723000666/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-23-000666
- JSON: https://secwatch.observer/filing/0000950157-23-000666.json
- Plain text: https://secwatch.observer/filing/0000950157-23-000666.txt

## Key facts
- Executive change
  Francis deSouza resigned as Chief Executive Officer at ILLUMINA, INC..
  - Action: resigned
  - Role: Chief Executive Officer
  source text: On June 11, 2023, the Board of Directors (the “Board”) of Illumina, Inc. (the “Company”) accepted the resignation of Francis deSouza, which Mr. deSouza submitted to the Board on June 8, 2023, as Chief Executive Officer and as a director of the Company, effective immediately
  evidence_url: https://www.sec.gov/Archives/edgar/data/1110803/000095015723000666/0000950157-23-000666-index.htm
- Executive change
  Charles Dadswell was appointed as Chief Executive Officer at ILLUMINA, INC..
  - Action: appointed
  - Role: Chief Executive Officer
  source text: the Board appointed Charles Dadswell, the Company’s current Senior Vice President and General Counsel, to serve as interim Chief Executive Officer, effective immediately
  evidence_url: https://www.sec.gov/Archives/edgar/data/1110803/000095015723000666/0000950157-23-000666-index.htm

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