Earnings Per Share
Shares (Basic)
Illumina Shares (Basic) remained flat by 0.0% to 153M in Q1 2026 compared to the prior quarter. Year-over-year, this metric declined by 3.8%, from 159M to 153M.
Analysis
StatementIncome Statement
SectionEarnings Per Share
CategoryCapital Allocation
SignalContext dependent
VolatilityStable
First reportedQ1 2014
Last reportedQ1 2026
How to read this metric
Changes reflect share buybacks (decrease) or equity issuance (increase), which impact the per-share earnings calculation.
Detailed definition
The average number of common shares outstanding during the reporting period, calculated by weighting the number of share...
Peer comparison
Standard metric for all public companies; reflects capital structure and share repurchase activity.
Metric ID:
weighted_shares_basicHistorical Data
16 periods
| Q2 '21 | Q3 '21 | Q4 '21 | Q1 '22 | Q2 '22 | Q3 '22 | Q1 '23 | Q2 '23 | Q3 '23 | Q1 '24 | Q2 '24 | Q3 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q1 '26 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value | 146M | 152M | 2M | 157M | 157M | 157M | 158M | 158M | 158M | 159M | 159M | 159M | 159M | 157M | 153M | 153M |
| QoQ Change | — | +4.1% | -98.7% | >999% | +0.0% | +0.0% | +0.6% | +0.0% | +0.0% | +0.6% | +0.0% | +0.0% | +0.0% | -1.3% | -2.5% | +0.0% |
| YoY Change | — | — | — | — | +7.5% | +3.3% | +0.6% | +0.6% | +0.6% | +0.6% | +0.6% | +0.6% | +0.0% | -1.3% | -3.8% | -3.8% |
Range2M – 159M
CAGR+1.3%
Avg YoY Growth+0.5%
Median YoY Growth+0.6%
Shares (Basic) at Other Companies
Frequently Asked Questions
- What is Illumina's shares (basic)?
- Illumina (ILMN) reported shares (basic) of 153M in Q1 2026.
- How has Illumina's shares (basic) changed year-over-year?
- Illumina's shares (basic) decreased by 3.8% year-over-year, from 159M to 153M.
- What does shares (basic) mean?
- The average number of shares held by investors during the period.