Patrick Plewman - 18 Feb 2026 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Signature
Sean D. Mersten, Attorney in Fact for Patrick Plewman
Issuer symbol
DGX
Transactions as of
18 Feb 2026
Net transactions value
-$308,118
Form type
4
Filing time
20 Feb 2026, 17:13:11 UTC
Previous filing
12 Feb 2026
Next filing
04 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Plewman Patrick SVP for Diagnostic Services 500 PLAZA DRIVE, C/O QUEST DIAGNOSTICS INC, SECAUCUS Sean D. Mersten, Attorney in Fact for Patrick Plewman 20 Feb 2026 0001497368

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DGX Common Stock Award $0 +1,952 +13% $0.000000 17,333 18 Feb 2026 Direct F1
transaction DGX Common Stock Tax liability $51,242 -244 -1.4% $210.01 17,089 18 Feb 2026 Direct F2
transaction DGX Common Stock Tax liability $60,648 -293 -1.7% $206.99 16,796 18 Feb 2026 Direct F2
transaction DGX Common Stock Sale $196,227 -958 -5.7% $204.83 15,838 19 Feb 2026 Direct F3

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 Non-Qualifed Stock Option (right to buy) Award $0 +9,009 $0.000000 9,009 18 Feb 2026 Common Stock 9,009 $204.96 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Represents an award of restricted stock units.
F2 Disposition of common stock to the issuer solely to cover tax withholding obligations arising from the vesting of restricted stock units.
F3 This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.
F4 The options vest in three equal annual installments beginning on the first annual anniversary of the grant date.