MARK E. DELANEY - 18 Feb 2026 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Role
SVP & Chief Commercial Officer
Signature
Sean D. Mersten, Attorney in Fact for Mark E. Delaney
Issuer symbol
DGX
Transactions as of
18 Feb 2026
Net transactions value
-$87,907
Form type
4
Filing time
20 Feb 2026, 17:10:00 UTC
Previous filing
20 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DELANEY MARK E SVP & Chief Commercial Officer 500 PLAZA DRIVE, C/O QUEST DIAGNOSTICS INC, SECAUCUS Sean D. Mersten, Attorney in Fact for Mark E. Delaney 20 Feb 2026 0001955265

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DGX Common Stock Award $0 +1,586 +21% $0.000000 9,116 18 Feb 2026 Direct F1
transaction DGX Common Stock Tax liability $43,052 -205 -2.2% $210.01 8,911 18 Feb 2026 Direct F2
transaction DGX Common Stock Tax liability $47,608 -230 -2.6% $206.99 8,681 18 Feb 2026 Direct F2
transaction DGX Common Stock Small acquisition under Rule 16a-6 $2,753 +15 +0.17% $183.51 8,696 28 Jan 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 +7,332 $0.000000 7,332 18 Feb 2026 Common Stock 7,332 $204.96 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

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 Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.
F4 The options vest in three equal annual installments beginning on the first annual anniversary of the grant date.