ILLUMINA INC

In preparing our condensed consolidated financial statements, we make estimates, assumptions and judgments that can have a significant impact on our net revenue, operating income (loss) and net income (loss), as well as on the value of certain assets and liabilities on our balance sheet. We believe that the estimates, assumptions and judgments involved in the accounting policies described in “Critical Accounting Policies and Estimates” within the Management’s Discussion & Analysis section of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 have the greatest potential impact on our financial statements, so we consider them to be our critical accounting policies and estimates. Though macroeconomic factors such as inflation, exchange rate fluctuations and concerns about an economic downturn present additional uncertainty, we continue to use the best information available to inform our critical accounting estimates. There were no material changes to our critical accounting policies and estimates during Q1 2024, with the exception of income taxes as disclosed in note “1. Organization and Significant Accounting Policies.”