GARY M. PFEIFFER - 22 Oct 2025 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Role
Director
Signature
Sean D. Mersten, Attorney in Fact for Gary M. Pfeiffer
Issuer symbol
DGX
Transactions as of
22 Oct 2025
Net transactions value
-$1,111,400
Form type
4
Filing time
24 Oct 2025, 18:10:54 UTC
Previous filing
19 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
PFEIFFER GARY M Director 500 PLAZA DRIVE, SECAUCUS Sean D. Mersten, Attorney in Fact for Gary M. Pfeiffer 24 Oct 2025 0001127304

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DGX Common Stock Sale $270,317 -1,482 -4.8% $182.40 29,431 22 Oct 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction DGX Phantom Stock Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities $841,084 -4,413 -100% $190.58 0 23 Oct 2025 Common Stock 4,413 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This transaction constitutes an intra-plan transfer in the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors from the company stock fund to another investment option. The phantom common stock units were payable in cash and represented a like number of shares of the company's common stock.
F2 The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.