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Illumina ILMN Business Segments

TTM Q1 '26TTM Q4 '25TTM Q3 '25TTM Q2 '25TTM Q1 '25
Total Revenue by Business
Microarray$359M+0.6%$357M-1.9%$364M-0.5%$366M-2.4%$375M-0.8%
Sequencing$4.03B+1.2%$3.99B+1.6%$3.92B+0.2%$3.92B-1.1%$3.96B-0.8%
Total Revenue by Product
Consumables$3.26B+0.9%$3.23B+1.7%$3.17B+0.3%$3.17B+0.1%$3.16B+0.2%
Instruments$490M+1.7%$482M-0.2%$483M+0.8%$479M-3.8%$498M-0.4%
Service$647M+2.1%$634M+0.5%$631M-1.4%$640M-5.6%$678M-5.4%
Total Revenue by Geography
Greater China$223M-8.2%$243M-9.0%$267M-7.9%$290M-4.0%$302M-1.9%

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Questions, answered.

How does Illumina break its business down?
Illumina (ILMN) reports total revenue by business across 2 parts — Microarray and Sequencing. Each is extracted from the segment footnotes and tracked over time.
Where does Illumina's segment data come from?
Segment breakdowns are pulled from the segment footnotes in Illumina's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.