---
schema_version: "secwatch.filing_event.v1"
accession: "0001110803-24-000004"
form_type: "8-K/A"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2024-01-09T23:59:59+00:00"
generated_at: "2026-06-07T01:17:13.759209+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Illumina estimates $43M impairment charge for Foster City campus exit in Q4 2023

## Summary
- Right-of-use asset and leasehold improvement impairment charges estimated at $43M for Q4 2023.
- Charges relate to exiting a portion of the Foster City, California campus.
- Company previously reported $182M in assets tied to the campus as of Oct 1, 2023.
- Illumina continues evaluating options for the remainder of the Foster City campus; further charges possible but not yet estimable.
- Charges will be excluded from non-GAAP metrics.

## SEC filing metadata
- accession: 0001110803-24-000004
- form_type: 8-K/A
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2024-01-09T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 2.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000111080324000004/0001110803-24-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000111080324000004/ilmn-20230621.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001110803-24-000004
- JSON: https://secwatch.observer/filing/0001110803-24-000004.json
- Plain text: https://secwatch.observer/filing/0001110803-24-000004.txt

## Key facts
- Restructurings & Charges
  ILLUMINA, INC. announced a impairment with charges of approximately $43 million affecting Foster City campus.
  - Type: impairment
  - Charge: approximately $43 million
  - Affected area: Foster City campus
  source text: and now estimates that it will incur right-of-use asset and leasehold improvement impairment charges of approximately $43 million in the fourth fiscal quarter of 2023 related to this exit.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1110803/000111080324000004/0001110803-24-000004-index.htm

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