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QUEST DIAGNOSTICS INC

For the period ended Sep 30, 2026. Filed Oct 23, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Oct 23, 2026

DGX$259.67+1.6%Stored close · as of Nov 9, 2026

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Item 5. Other Information

a. None

b. None c. Rule 10b5-1 and Non-Rule 10b5-1 Trading Arrangements by Our Directors and Officers

During the quarterly period covered by this report, our directors and officers (as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934, as amended) adopted, terminated or modified the Rule 10b5-1 trading arrangements (as defined in Item 408 of Regulation S-K) set forth in the table below. No non-Rule 10b5-1 trading arrangements were adopted, modified orterminated by any director or officer during the quarterly period covered by this report.

NameTitleType of Trading ArrangementSecurityActionDate of ActionDuration of Trading ArrangementAggregate Number of Securities Covered
Michael J. DeppeSVP, Corporate Controller and Chief Accounting OfficerRule 10b5-1 plan to sellCommon StockAdoptionAugust 13, 2026August 13, 2026 to August 13, 2027*Up to 11,776*
Cathy DohertyEVPRule 10b5-1 plan to sellCommon StockAdoptionAugust 3, 2026August 3, 2026 to April 30, 2027*Up to 34,252*
Karthik KuppusamySVP, Clinical SolutionsRule 10b5-1 plan to sellCommon StockAdoptionAugust 26, 2026August 26, 2026 to April 30, 2027*Up to 1,000*
Patrick PlewmanSVP, Diagnostic ServicesRule 10b5-1 plan to sellCommon StockAdoptionAugust 11, 2026August 11, 2026 to March 31, 2027*Up to 40,553*
James E. DavisChairman, Chief Executive Officer and PresidentRule 10b5-1 plan to sellCommon StockAdoptionAugust 10, 2026August 10, 2026 to December 31, 2027*Up to 172,095*
  • Includes shares of common stock to be released from (a) stock options and/or restricted stock units that are expected to vest and/or (b) performance share awards that may vest, subject to the satisfaction of the applicable performance metrics. The actual number of shares of common stock that will be released is not yet determinable and the actual number of shares of common stock that will be sold will be net of the number of shares withheld to satisfy tax withholding obligations.
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.