Superworth

Illumina shares outstanding ILMN

Diluted shares outstanding, averaged over each quarter, from 2009.

Latest quarter, to Jun 28, 2026
153M
On a year earlier
−2.5%
fewer shares

Illumina had 153M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 28, 2026.

That is 2.5% fewer than a year earlier, so each share owns a little more of the company.

Shares outstanding over time

Open the interactive chart, with overlays and comparisons

Fiscal year by fiscal year

Fiscal yearShares, fourth quarterChange
FY2025153M−4%
FY2024159M+1%
FY2023158M+1%
FY2022157M+0%
FY2021157M+6%
FY2020148M−1%
FY2019149M−2%
FY2018152M+3%
FY2017148M−0%
FY2016148M−1%
FY2015149M+0%
FY2014148.7M+3%
FY2013143.9M+6%
FY2012135.4M+8%
FY2011124.9M−17%

Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.

Quarter by quarter

QuarterEndedShares outstandingOn a year earlier
Q2 FY26153M−3%
Q1 FY26154M−3%
Q4 FY25153M−4%
Q3 FY25154M−4%
Q2 FY25157M−1%
Q1 FY25159M+0%
Q4 FY24159M+1%
Q3 FY24160M+1%
Q2 FY24159M+1%
Q1 FY24159M+1%
Q4 FY23158M+1%
Q3 FY23158M+1%

What the shares outstanding tells you

Diluted shares outstanding, averaged over the period. Fewer shares means each one owns more of the company.

A falling count usually means buybacks. A rising one means stock pay, acquisitions paid in shares or new shares sold.

More on Illumina

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.