---
schema_version: "secwatch.filing_event.v1"
accession: "0001110803-23-000078"
form_type: "8-K/A"
ticker: "ILMN"
cik: "0001110803"
company_name: "ILLUMINA, INC."
filed_at: "2023-11-09T23:59:59+00:00"
generated_at: "2026-06-08T06:05:02.743365+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Illumina amends CEO Jacob Thaysen's offer letter to extend stock purchase window and clarify ownership guidelines

## Summary
- Amended offer letter dated Nov 8, 2023 extends matching RSU purchase window from 90 days to 12 months after start date of Sept 25, 2023.
- Matching RSU grant value up to $1,000,000 based on shares purchased under qualified trading plan; vesting on third anniversary subject to continued employment and holding.
- Offer letter now explicitly subjects Thaysen to Illumina's Stock Ownership Guidelines requiring ownership of 6 times base salary within five years.
- Thaysen's original appointment as CEO effective Sept 25, 2023 was reported in Sept 5, 2023 8-K; this amendment refines equity and ownership terms.

## SEC filing metadata
- accession: 0001110803-23-000078
- form_type: 8-K/A
- ticker: ILMN
- cik: 0001110803
- company_name: ILLUMINA, INC.
- filed_at: 2023-11-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1110803/000111080323000078/0001110803-23-000078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1110803/000111080323000078/ilmn-20230831.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001110803-23-000078
- JSON: https://secwatch.observer/filing/0001110803-23-000078.json
- Plain text: https://secwatch.observer/filing/0001110803-23-000078.txt

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