---
schema_version: "secwatch.filing_event.v1"
accession: "0001110803-24-000037"
form_type: "8-K/A"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2024-06-27T23:59:59+00:00"
generated_at: "2026-06-01T00:56:19.454374+00:00"
event_type: "m_and_a"
sentiment: "negative"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Illumina completes GRAIL spin-off; expects $1.9B in Q2 impairment charges

## Summary
- Spin-off closed June 24, 2024; Illumina distributed 85.5% of GRAIL shares (1-for-6 ratio) and retained 14.5% stake.
- Illumina contributed $974M cash to GRAIL (funded by a $750M 364-day term loan at ~6.69%, maturing June 2025).
- Pro forma financials reflect expected Q2 2024 goodwill impairment of $1,466M and IPR&D impairment of $420M.
- Pro forma for spin-off, 2023 net income would have been $219M vs. historical loss of $1,161M; Q1 2024 pro forma net income $56M vs. historical loss $126M.

## SEC filing metadata
- accession: 0001110803-24-000037
- form_type: 8-K/A
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2024-06-27T23:59:59+00:00
- event_type: m_and_a
- sentiment: negative
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 2.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000111080324000037/0001110803-24-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000111080324000037/ilmn-20240627.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001110803-24-000037
- JSON: https://secwatch.observer/filing/0001110803-24-000037.json
- Plain text: https://secwatch.observer/filing/0001110803-24-000037.txt

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