ILLUMINA INC

The following table summarizes the facilities leased by Core Illumina and GRAIL as of December 31, 2023, including the location and size of each principal facility and their designated use. We believe our facilities are adequate for our current and near-term needs, and we will be able to locate additional facilities, as needed.

• Includes properties leased by both Core Illumina and GRAIL, except for Durham, NC, which is leased entirely by GRAIL.

** Excludes approximately 50,000 square feet for which the leases do not commence until 2024 and beyond.

Human Capital

To continue as a leader in genomics, we need to harness the world’s best talent and give them the opportunity to thrive. We are committed to attracting, retaining, developing, and supporting our people to enable everyone to fully contribute to our mission and deliver on the transformative power of genomics. Diversity is a competitive advantage that drives innovation in all that we do.

Our key human capital objectives include: practice diversity and inclusion in all we do to advance equity and belonging, attract extraordinary talent, invest and develop our people to create a deep and diverse pipeline, steward our employee safety and wellness, and engage our people and communities.

Additional information is included in our annual Environmental, Social, and Governance (ESG) Report, previously titled Corporate Social Responsibility (CSR) Report, located on our website at www.illumina.com/csr. Information on our website, including the ESG Report, shall not be deemed incorporated by reference into this Annual Report. Our annual ESG Report is guided by the reporting frameworks of the Global Reporting Initiative (GRI), Sustainable Accounting Standards Board (SASB), and the Task Force for Climate related Financial Disclosures (TCFD).

Core Illumina

As of December 31, 2023, Core Illumina’s global workforce was comprised of approximately 9,250 full time employees, 50 part time employees, and 1,370 contingent workers. The regional representation includes approximately 5,560 employees in the Americas, 1,330 employees in Europe, 2,090 employees in Africa, Middle East and Asia, and 320 employees in Greater China. Core Illumina’s global voluntary turnover rate for 2023 was 7%. Women comprised 45% of Core Illumina’s global workforce. Based on self-identification data, Core Illumina’s U.S. workforce is comprised of 54% minorities. Additional details on U.S. diversity demographics for 2023 will be available in our annual ESG Report, which we expect to publish in June 2024. The annual ESG report is published on our website at www.illumina.com/csr.

GRAIL

As of December 31, 2023, GRAIL’s global workforce was comprised of approximately 1,340 full time employees, the majority of which are based in the United States, and approximately 380 contingent workers. GRAIL’s global voluntary turnover rate for 2023 was 8%. Women comprised 55% of GRAIL’s global workforce.