SuperworthQuest Diagnostics shares outstanding DGX
Diluted shares outstanding, averaged over each quarter, from 2008.
- Latest quarter, to Sep 30, 2026
- 112M
- On a year earlier
- −0.9%
- fewer shares
Quest Diagnostics had 112M diluted shares outstanding on average in Q3 FY26, the quarter to Sep 30, 2026.
That is 0.9% fewer than a year earlier, so each share owns a little more of the company.
Shares outstanding over time
Fiscal year by fiscal year
| Fiscal year | Shares, fourth quarter | Change |
|---|---|---|
| FY2025 | 113M | −3% |
| FY2024 | 116M | +5% |
| FY2023 | 110M | −4% |
| FY2022 | 115M | −8% |
| FY2021 | 125M | −8% |
| FY2020 | 136M | +0% |
| FY2019 | 136M | −2% |
| FY2018 | 139M | −1% |
| FY2017 | 140M | +1% |
| FY2016 | 139M | −4% |
| FY2015 | 145M | +0% |
| FY2014 | 145M | −2% |
| FY2013 | 148M | −8% |
| FY2012 | 160.1M | +1% |
| FY2011 | 159.1M | −7% |
Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.
Quarter by quarter
| Quarter | Ended | Shares outstanding | On a year earlier |
|---|---|---|---|
| Q3 FY26 | 112M | −1% | |
| Q2 FY26 | 112M | −1% | |
| Q1 FY26 | 112M | −1% | |
| Q4 FY25 | 113M | −3% | |
| Q3 FY25 | 113M | +0% | |
| Q2 FY25 | 113M | +1% | |
| Q1 FY25 | 113M | +1% | |
| Q4 FY24 | 116M | +5% | |
| Q3 FY24 | 113M | −1% | |
| Q2 FY24 | 112M | −2% | |
| Q1 FY24 | 112M | −1% | |
| Q4 FY23 | 110M | −4% |
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 Quest Diagnostics
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.