---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-153239"
form_type: "8-K"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2024-06-03T23:59:59+00:00"
generated_at: "2026-06-01T06:43:32.069591+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Illumina board approves GRAIL spin-off; distribution set for June 24, 2024

## Summary
- Holders receive 1 GRAIL share per 6 Illumina shares held at close on June 13, 2024 (record date).
- Distribution effective 12:01 AM NYC time on June 24, 2024; GRAIL expected to trade 'regular way' on Nasdaq on June 25 under ticker 'GRAL'.
- Illumina estimates $35-$50M incremental costs for spin-off, mainly legal and advisory fees, substantially incurred by Q3 2024.
- Spin-off approval triggers potential goodwill impairment test; carrying value includes $1.466B goodwill and $561M IPR&D related to GRAIL.
- Conditions include satisfaction or waiver of conditions in GRAIL's Form 10; no stockholder vote or action required.

## SEC filing metadata
- accession: 0001193125-24-153239
- form_type: 8-K
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2024-06-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.05, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000119312524153239/0001193125-24-153239-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000119312524153239/d700243d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-153239
- JSON: https://secwatch.observer/filing/0001193125-24-153239.json
- Plain text: https://secwatch.observer/filing/0001193125-24-153239.txt

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