Illumina layoffs, on the record
Every job cut, severance charge and restructuring Illumina reported in its annual reports, 2023 to 2025, quoted from the filings.
Headcount, as reported
| Annual report | Employees | As of |
|---|---|---|
| 10-K for 2024 | approximately 8,970 full time employees | As of December 29, 2024 |
| 10-K for 2025 | approximately 8,600 full time employees, 50 part time employees, and 1,430 contingent workers | As of December 28, 2025 |
Job cuts, severance and restructuring
Our summaryIn Q2 2023 the company implemented a cost reduction initiative that included workforce reductions, consolidation of certain facilities and other actions to reduce expenses.
Word for word“In Q2 2023, we implemented a cost reduction initiative that included workforce reductions, the consolidation of certain facilities and other actions to reduce expenses, all as part of a plan to realign operating expenses while maintaining focus on our innovation roadmap and sustainable long-term growth.” 10-K for 2023
Our summaryThe restructuring charges were recorded mainly for asset impairments on facilities and employee separation costs, primarily in the Core Illumina segment.
Word for word“In 2023, we recorded pre-tax restructuring charges primarily consisting of asset impairment charges related to our facilities and employee separation costs.” 10-K for 2023
Our summaryThe company fully exited its i3 campus in San Diego and partly exited its Foster City campus, recording right-of-use asset impairments.
Word for word“During 2023, we fully exited our i3 campus in San Diego, California, which resulted in a right-of-use asset impairment of $ 38 million, and we exited a portion of our campus in Foster City, California, which resulted in a right-of-use asset impairment of $ 21 million.” 10-K for 2023
Our summaryEmployee separation restructuring costs were expected to be substantially fully incurred and paid by the end of Q1 2024.
Word for word“It is expected that substantially all of the employee separation related restructuring charges will be incurred and paid by the end of Q1 2024.” 10-K for 2023
Our summaryGRAIL publicly announced a corporate restructure including a reduction in headcount and planned hires, and a substantial decrease in certain R&D projects and investments.
Word for word“In August 2024, GRAIL publicly announced a corporate restructure, including a reduction in headcount and planned hires and a substantial decrease in certain R&D projects and investments.” 10-K for 2024
Our summaryIllumina carried out a cost reduction program in 2023 that included workforce reductions, consolidating some facilities, and other steps to cut expenses.
Word for word“In 2023, we implemented a cost reduction initiative that included workforce reductions, consolidation of certain facilities, and other actions to reduce expenses as part of a plan to realign operating expenses while maintaining focus on our innovation roadmap and sustainable long-term growth.” 10-K for 2025
Our summaryIllumina launched an additional cost reduction program in the first quarter of 2025 that included workforce reductions and cuts to stock-based compensation and non-labor spending, to offset expected lower Greater China revenue and NIH funding uncertainty.
Word for word“In Q1 2025, we implemented an incremental cost reduction initiative that included optimizing stock-based compensation and non-labor spending, as well as workforce reductions, to help mitigate the expected impact of a reduction in revenue and operating income from our Greater China business and the uncertainty in the U.S. government’s funding of the National Institutes of Health.” 10-K for 2025
| Fiscal year ended | Restructuring charges | Cash paid for restructuring |
|---|---|---|
| 2023-12-31 | $52 million | $34 million |
| 2024-12-29 | $16 million | $26 million |
| 2025-12-28 | $47 million | $44 million |
Illumina filed 7 restructuring notices (Form 8-K, Item 2.05) since 2016. This page shows what the company reported to the SEC, not news reports or state layoff notices.
Read from Illumina’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-12. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.