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

Illumina has reported Shares Outstanding (Weighted Average) for 18 years, with the latest figure at $153.0 million in Q1 2026.

• For the quarter ending Q1 2026, Shares Outstanding (Weighted Average) fell 3.77% year-over-year to $153.0 million; the trailing twelve-month figure through Mar 2026 stood at $153.0 million (down 3.77% YoY), and the FY2025 full-year result was $155.0 million, down 2.52% from the prior year.
• Shares Outstanding (Weighted Average) for Q1 2026 stood at $153.0 million, down from $155.0 million in the prior quarter.
• The five-year high for Shares Outstanding (Weighted Average) was $159.0 million in Q1 2024, with the low at $150.0 million in Q1 2022.
• Historically, Shares Outstanding (Weighted Average) has averaged $157.1 million across 5 years, with a median of $158.0 million in 2023.
• Annual changes were most pronounced in 2022 — Shares Outstanding (Weighted Average) gained 7.53% — and 2026, when it fell 3.77%.
• Illumina's Shares Outstanding (Weighted 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 decreased by 2.52% to $155.0 million in 2025, then declined by 1.29% to $153.0 million in 2026.
• The last three Shares Outstanding (Weighted Average) figures came in at $153.0 million (Q1 2026), $155.0 million (Q4 2025), and $156.0 million (Q3 2025), per Business Quant data.