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Ironwood Pharmaceuticals shares outstanding IRWD

Diluted shares outstanding, averaged over each quarter, from 2010.

Latest quarter, to Jun 30, 2026
167.2M
On a year earlier
−5.5%
fewer shares

Ironwood Pharmaceuticals had 167.2M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 30, 2026.

That is 5.5% 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
FY2025162.4M+1%
FY2024160.9M+3%
FY2023156M−16%
FY2022185.7M+12%
FY2021165.9M+2%
FY2020161.8M+5%
FY2019153.6M−0%
FY2018154.1M+3%
FY2017149.9M+2%
FY2016146.3M+2%
FY2015142.8M+2%
FY2014139.8M+16%
FY2013120.9M+13%
FY2012107.5M+7%
FY2011100.4M+2%

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 FY26167.2M−5%
Q1 FY26166.7M+4%
Q4 FY25162.4M+1%
Q3 FY25177.8M+11%
Q2 FY25176.8M+11%
Q1 FY25161M+2%
Q4 FY24160.9M+3%
Q3 FY24160.2M−14%
Q2 FY24159M+2%
Q1 FY24157.7M−16%
Q4 FY23156M−16%
Q3 FY23186.9M+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 Ironwood Pharmaceuticals

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