Quest Diagnostics Shares Outstanding 2012-2026 | DGX

Quest Diagnostics shares outstanding history from 2012 to 2026. Shares outstanding can be defined as the number of shares held by shareholders (including insiders) assuming conversion of all convertible debt, securities, warrants and options. This metric excludes the company's treasury shares.
  • Quest Diagnostics shares outstanding for the quarter ending March 31, 2026 were 112M, a 0.88% decline year-over-year.
  • Quest Diagnostics 2025 shares outstanding were 0.113B, a 0% decline from 2024.
  • Quest Diagnostics 2024 shares outstanding were 0.113B, a 0% decline from 2023.
  • Quest Diagnostics 2023 shares outstanding were 0.113B, a 4.24% decline from 2022.
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Quest Diagnostics Annual Shares Outstanding
(Millions of Shares)
2025 113
2024 113
2023 113
2022 118
2021 128
2020 136
2019 136
2018 139
2017 140
2016 142
2015 145
2014 145
2013 153
2012 160
2011 160
Quest Diagnostics Quarterly Shares Outstanding
(Millions of Shares)
2026-03-31 112
2025-12-31 112
2025-09-30 113
2025-06-30 113
2025-03-31 113
2024-12-31 113
2024-09-30 113
2024-06-30 112
2024-03-31 112
2023-12-31 113
2023-09-30 114
2023-06-30 114
2023-03-31 113
2022-12-31 118
2022-09-30 118
2022-06-30 119
2022-03-31 121
2021-12-31 128
2021-09-30 125
2021-06-30 127
2021-03-31 135
2020-12-31 136
2020-09-30 137
2020-06-30 136
2020-03-31 135
2019-12-31 136
2019-09-30 137
2019-06-30 136
2019-03-31 136
2018-12-31 139
2018-09-30 139
2018-06-30 139
2018-03-31 139
2017-12-31 140
2017-09-30 140
2017-06-30 140
2017-03-31 141
2016-12-31 142
2016-09-30 142
2016-06-30 142
2016-03-31 144
2015-12-31 145
2015-09-30 145
2015-06-30 145
2015-03-31 146
2014-12-31 145
2014-09-30 145
2014-06-30 145
2014-03-31 145
2013-12-31 153
2013-09-30 151
2013-06-30 154
2013-03-31 159
2012-12-31 160
2012-09-30 161
2012-06-30 160
2012-03-31 160
2011-12-31 160
2011-09-30 159
2011-06-30 159
Sector Industry Market Cap Revenue
Medical Medical - Outpatient & Home Care $21.197B $11.035B
Quest Diagnostics, Inc. is the provider of commercial laboratory services. Quest provides lab testing services to physicians, hospitals, managed care organizations, employers, government institutions and other clinical laboratories. The company consists of 2 business groups - Diagnostic Information Services and Diagnostic Solutions. The company's focus is on two elements - to accelerate growth and to drive operational excellence. Restore Growth: The company has adopted seven tactical approaches to accelerate growth such as sales and marketing; development of esoteric testing through a disease focus; partnerships with hospitals and successful testing of international IDNs; creation of value from information assets; leadership in companion diagnostics; extension into adjacent markets. Drive Operational excellence: The company plans to focus on four strategic requirements - to enhance end-to-end customer value chain, enterprise information technology architecture, business performance tools and cost excellence.
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