Illumina (ILMN) Shares Outstanding (Diluted Average) (2009 - 2026)

Illumina has reported Shares Outstanding (Diluted Average) for 18 years, with the latest figure at $154.0 million in Q1 2026.

• For the quarter ending Q1 2026, Shares Outstanding (Diluted Average) fell 3.14% year-over-year to $154.0 million; the trailing twelve-month figure through Mar 2026 stood at $154.0 million (down 3.14% YoY), and the FY2025 full-year result was $156.0 million, down 1.89% from the prior year.
• Shares Outstanding (Diluted Average) for Q1 2026 stood at $154.0 million, down from $156.0 million in the prior quarter.
• The five-year high for Shares Outstanding (Diluted Average) was $160.0 million in Q3 2024, with the low at $151.0 million in Q1 2022.
• Historically, Shares Outstanding (Diluted Average) has averaged $157.2 million across 5 years, with a median of $158.0 million in 2023.
• Annual changes were most pronounced in 2022 — Shares Outstanding (Diluted Average) grew 8.16% — and 2025, when it slipped 3.75%.
• Illumina's Shares Outstanding (Diluted Average) stood at $157.0 million in 2022, then rose by 0.64% to $158.0 million in 2023, then climbed by 0.63% to $159.0 million in 2024, then slipped by 1.89% to $156.0 million in 2025, then fell by 1.28% to $154.0 million in 2026.
• The last three Shares Outstanding (Diluted Average) figures came in at $154.0 million (Q1 2026), $156.0 million (Q4 2025), and $154.0 million (Q3 2025), per Business Quant data.