Mark E. Delaney - 18 Nov 2025 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Reporting relationship: SVP & Chief Commercial Officer
Issuer ticker: DGX
Reported as of: 18 Nov 2025
Net transaction value: -$1,488,683
SEC form: 4
Accepted by SEC: 20 Nov 2025, 16:28:10 UTC
Prior SEC filing: 24 Oct 2025
Next SEC filing: 20 Feb 2026
Source filing: View source filing
Reporting owner signature: Sean D. Mersten, Attorney in Fact for Mark E. Delaney

Key filing fact

Mark E. Delaney filed Form 4 for QUEST DIAGNOSTICS INC (DGX) on 20 Nov 2025.

Key facts

This page summarizes Mark E. Delaney's Form 4 filing for QUEST DIAGNOSTICS INC (DGX).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 20 Nov 2025, 16:28.

Change

Previous filing in this sequence was filed on 24 Oct 2025.
Current net transaction value: -$1,488,683.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001955265 Primary reporting owner

DELANEY MARK E

Relationship: SVP & Chief Commercial Officer
Address: 500 PLAZA DRIVE, C/O QUEST DIAGNOSTICS INC, SECAUCUS
Signature: Sean D. Mersten, Attorney in Fact for Mark E. Delaney
Signature date: 20 Nov 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DGX transaction

Common Stock

Options Exercise

Transaction value: $1,133,512
Shares: +7,846
Change %: +104%
Price: $144.47
Shares after: 15,376
Date: 18 Nov 2025
Ownership: Direct
Footnotes: F1

DGX transaction

Common Stock

Options Exercise

Transaction value: $14,333
Shares: +100
Change %: +0.65%
Price: $143.33
Shares after: 15,476
Date: 18 Nov 2025
Ownership: Direct
Footnotes: F1

DGX transaction

Common Stock

Sale

Transaction value: $1,488,683
Shares: -7,946
Change %: -51%
Price: $187.35
Shares after: 7,530
Date: 18 Nov 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

DGX transaction Derivative

Non-Qualifed Stock Option (right to buy)

Options Exercise

Transaction value: $1,133,512
Shares: -7,846
Change %: -100%
Price: $144.47
Shares after: 0
Date: 18 Nov 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,846
Exercise price: $144.47
Footnotes: F1, F2

DGX transaction Derivative

Non-Qualifed Stock Option (right to buy)

Options Exercise

Transaction value: $14,333
Shares: -100
Change %: -1.3%
Price: $143.33
Shares after: 7,484
Date: 18 Nov 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 100
Exercise price: $143.33
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

Footnote F2

The options vest in three equal annual installments beginning on the first annual anniversary of the grant date.