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Quest Diagnostics Incorporated (NYSE:DGX) news

Every Quest Diagnostics Incorporated press release and news update in one place — announcements, filings coverage, and company updates for investors.

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Press releases & updates

Nearly 1 in 3 Patients with Suspected Lyme Disease are Co-Positive for Other Tick-Borne Pathogens, Finds Study by Quest Diagnostics

September 21, 2026

Nine in 10 Voters Express Concern That Medicare Lab Payment Cuts Will Harm Patient Access to Diagnostic Lab Testing, Finds National Survey from Quest Diagnostics

September 16, 2026

Apple Health app Users to be Able to Order Labs from Quest Diagnostics

September 9, 2026

Quest Diagnostics to Speak at the Baird 2026 Global Healthcare Conference

August 25, 2026

Quest Diagnostics to Speak at the Morgan Stanley 24th Annual Global Healthcare Conference

August 24, 2026

Quest Diagnostics to Offer FDA-Cleared Roche pTau217 Blood Test to Assess Alzheimer's Disease Pathology

August 24, 2026

Bacterial Vaginosis Linked to Increased STI Co-Infection, Finds National Study of 1.5 Million Women from Quest Diagnostics

July 30, 2026

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

July 23, 2026

One in Five American Workers Tested Had a Positive Hair Drug Test in 2025, Signaling Persistent Long-Term Substance Use Patterns

July 10, 2026

Quest Diagnostics Now the Largest Clinical Reference Lab to Extend Oncology Test Access Through OncoEMR MPI

July 8, 2026

Quest Diagnostics Receives New York State Approval for Haystack MRD®, Broadening Patient Access to ctDNA Minimal Residual Disease Testing

June 24, 2026

Quest Diagnostics to Release Second Quarter Financial Results on July 23, 2026

June 17, 2026

Quest Diagnostics Unveils Achievements in Healthcare Access, Employee Engagement and Environmental Sustainability in 2025 Corporate Responsibility Report

June 16, 2026

Quest Diagnostics Prices $500 Million of Senior Notes

April 27, 2026

Orkes Raises $60M as Developers Increasingly Use Its Platform to Deploy AI Confidently in Production

April 24, 2026

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

April 21, 2026

Digi Power X Signs First AI Revenue Contract - $19.6 Million, 24-Month SubQ AI Agreement, Validating Operational Launch of AI Factory

April 20, 2026

City of Hope to Evaluate Quest Diagnostics' Haystack MRD® for Guiding Patient Management in Multiple Cancers

April 16, 2026

Global Cognitive Assessment and Training Market Surges as North America Dominates | Signant Health, Quest Diagnostics

April 13, 2026

Digi Power X Enters into Amended and Restated Sales Agreement

April 9, 2026

Digi Power X Reports Fiscal Year 2025 Financial Results

March 31, 2026

Quest Diagnostics to Release First Quarter Financial Results on April 21, 2026

March 19, 2026

Helio Genomics to Make HelioLiver™ Cancer Test Accessible to Quest Diagnostics' Providers

March 18, 2026

Quest Diagnostics Elects Timothy Wentworth, Former CEO of Walgreens Boots Alliance, Evernorth Health Services and Express Scripts, to Board of Directors

March 12, 2026

Guardant Health’s Shield Blood-based Screening Test for Colorectal Cancer Now Accessible Through National Test Ordering and Collection Network of Quest Diagnostics

March 10, 2026

Quest Diagnostics Introduces AI Companion to Help Patients Understand and Act on Lab Test Results

March 2, 2026

Digi Power X Graduates to Cboe Canada

February 27, 2026

Quest Diagnostics Names Benjamin Beauvalot Senior Vice President, Chief Strategy and M&A Officer

February 26, 2026

Quest Diagnostics to Speak at the Leerink 2026 Global Healthcare Conference

February 25, 2026

Quest Diagnostics Reports Fourth Quarter and Full Year 2025 Financial Results; Provides Guidance for Full Year 2026; Increases Quarterly Dividend 7.5% to $0.86 Per Share

February 10, 2026

Quest Diagnostics Increases Dividend 7.5% To $0.86 Per Quarter, Marking 15 Consecutive Years of Dividend Increases; Announces $1 Billion Increase in Share Repurchase Authorization

February 10, 2026

Cleveland Diagnostics Names Jack Kenny as Chairman of the Board

February 5, 2026

Quest Diagnostics Launches Novel Flow Cytometry MRD Blood Test for Myeloma, Enabling Ultrasensitive Detection of Residual Disease

February 2, 2026

Quest Diagnostics Named to Fortune's World's Most Admired Companies List for 12th Consecutive Year

January 21, 2026

Sonora Quest and Laboratory Sciences of Arizona Announce Jennifer Erickson as CEO-Elect

January 15, 2026

Quest Diagnostics to Release Fourth Quarter and Full Year 2025 Financial Results on February 10, 2026

January 8, 2026

Data Featuring Haystack MRD® from Quest Diagnostics to be Presented at the 2026 ASCO Gastrointestinal Cancers Symposium

January 6, 2026

Corewell Health and Quest Diagnostics Complete Laboratory Joint Venture Transaction in Michigan

January 5, 2026

Quest Diagnostics to Speak at the 44th Annual J.P. Morgan Healthcare Conference

December 19, 2025

Octave Bioscience Forms Strategic Collaboration with Quest Diagnostics to Expand Patient Access to the Octave® Multiple Sclerosis Disease Activity (MSDA) Test Across the United States

December 1, 2025

Oracle Names Stephen Rusckowski to the Board of Directors

November 19, 2025

Quest Diagnostics Declares Quarterly Cash Dividend

November 11, 2025

Quest Diagnostics to Speak at Citi's 2025 Global Healthcare Conference

November 3, 2025

New Study Demonstrates Accuracy of Two Quest AD-Detect® Tests for Alzheimer's Disease Diagnosis

October 27, 2025

Quest Diagnostics Reports Third Quarter 2025 Financial Results; Raises Guidance for Full Year 2025

October 21, 2025

Oxford Partners Expands into Healthcare Real Estate with Appointment of Nelson Udstuen as President of Healthcare Division

September 26, 2025

Quest Diagnostics to Release Third Quarter 2025 Financial Results on October 21, 2025

September 25, 2025

Guardant Health and Quest Diagnostics Announce Strategic Collaboration to Broaden Access to Guardant’s Shield™ Blood-based Screening Test in the United States

September 24, 2025

Quest Diagnostics to Improve Laboratory Testing Experience with Industry-First Epic Collaboration

September 23, 2025

Haystack Oncology and Rutgers Cancer Institute Collaborate in a Clinical Study to Examine Haystack MRD as a Guide for Post-Surgical Treatment for Lung Cancer

September 22, 2025

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