Quest Diagnostics Reports First Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026

About this update from Quest Diagnostics Incorporated

SECAUCUS, N.J. , April 21, 2026 /PRNewswire/ -- Quest Diagnostics Incorporated (NYSE: DGX), a leading provider of diagnostic information services, today announced financial results for the first quarter ended March 31, 2026. "Our more than 9% revenue growth, almost entirely organic, and approximately 13% adjusted diluted earnings per share growth reflect our team's disciplined execution of our strategy to deliver innovative diagnostic solutions for our customers' evolving needs," said Jim Davis, Chairman, CEO and President. "We are raising our revenue and EPS guidance for the year, given our robust first quarter performance and continued strategic focus." Recent Highlights: Serving Clinicians and Health Systems Serving Consumers Delivering Diagnostic Innovations Driving Operational Excellence Updated Guidance for Full Year 2026 The company updates its full year 2026 guidance as follows: Note on Non-GAAP Financial Measures As used in this press release the term "reported" refers to measures under accounting principles generally accepted in the United States ("GAAP"). The term "adjusted" refers to non-GAAP operating performance measures that exclude special items such as restructuring and integration charges, amortization expense, excess tax benefits ("ETB") associated with stock-based compensation, gains and losses associated with changes in the carrying value of our strategic investments and other items. Non-GAAP adjusted measures are presented because management believes those measures are useful adjuncts to GAAP results. Non-GAAP adjusted measures should not be considered as an alternative to the corresponding measures determined under GAAP. Management may use these non-GAAP measures to evaluate our performance period over period and relative to competitors, to analyze the underlying trends in our business, to establish operational budgets and forecasts and for incentive compensation purposes. We believe that these non-GAAP measures are useful to investors and analysts to evaluate our performance period over period and relative to competitors, as well as to analyze the underlying trends in our business and to assess our performance. The additional tables attached below include reconciliations of non-GAAP adjusted measures to GAAP measures. Conference Call Information  Quest Diagnostics will hold its quarterly conference call to discuss financial results beginning at 8:30 a.m. Eastern Time today. The conference call can be accessed by dialing 888-455-0391 within the U.S. and Canada, or 773-756-0467 internationally, passcode: 7895081; or via live webcast on our website at www.QuestDiagnostics.com/investor . We suggest participants dial in approximately 10 minutes before the call. A replay of the call may be accessed online at www.QuestDiagnostics.com/investor  or, from approximately 10:30 a.m. Eastern Time on April 21, 2026 until midnight Eastern Time on May 5, 2026, by phone at 866-388-5361 for domestic callers or 203-369-0416 for international callers. Anyone listening to the call is encouraged to read our periodic reports, on file with the Securities and Exchange Commission, including the discussion of risk factors and historical results of operations and financial condition in those reports. About Quest Diagnostics Quest Diagnostics works across healthcare to create a healthier world, one life at a time. We help connect people, from clinicians to consumers, with laboratory insights that illuminate a path to better health. With a focus on delivering smarter, simpler testing, our insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve healthcare management. Quest Diagnostics serves half the physicians and hospitals in the United States and one in three adult Americans each year, and our nearly 57,000 employees work together to deliver diagnostic insights that inspire actions to transform lives. www.QuestDiagnostics.com . Forward Looking Statements The statements in this press release which are not historical facts may be forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date that they are made and which reflect management's current estimates, projections, expectations or beliefs and which involve risks and uncertainties that could cause actual results and outcomes to be materially different. Risks and uncertainties that may affect the future results of the company include, but are not limited to, uncertain and volatile economic conditions, adverse results from pending or future government investigations, lawsuits or private actions, the competitive environment, the complexity of billing, reimbursement and revenue recognition for clinical laboratory testing, changes in government policies, including related to trade, and regulations, changing relationships with customers, payers, suppliers or strategic partners, acquisitions and other factors discussed in the company's most recently filed Annual Report on Form 10-K and in any of the company's subsequently filed Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, including those discussed in the "Business," "Risk Factors," "Cautionary Factors that May Affect Future Results" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of those reports. For further information: Wendy Bost, Quest Diagnostics (Media): 973-520-2800, Daniel Haemmerle, Quest Diagnostics (Investors): 973-520-2900 This earnings release, including the attached financial tables, is available online in the Newsroom section at www.QuestDiagnostics.com .       Notes to Financial Tables     View original content to download multimedia: https://www.prnewswire.com/news-releases/quest-diagnostics-reports-first-quarter-2026-financial-results-raises-revenue-and-eps-guidance-for-full-year-2026-302747831.html

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