Michael J. Deppe - 18 Feb 2026 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Reporting relationship: SVP, Corp. Controller & CAO
Issuer ticker: DGX
Reported as of: 18 Feb 2026
Net transaction value: -$37,923
SEC form: 4
Accepted by SEC: 20 Feb 2026, 17:09:22 UTC
Prior SEC filing: 05 Mar 2025
Next SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: Sean D. Mersten, Attorney in Fact for Michael J. Deppe

Key filing fact

Michael J. Deppe filed Form 4 for QUEST DIAGNOSTICS INC (DGX) on 20 Feb 2026.

Key facts

This page summarizes Michael J. Deppe's Form 4 filing for QUEST DIAGNOSTICS INC (DGX).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Feb 2026, 17:09.

Change

Previous filing in this sequence was filed on 05 Mar 2025.
Current net transaction value: -$37,923.

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 0001771759 Primary reporting owner

Deppe Michael J

Relationship: SVP, Corp. Controller & CAO
Address: 500 PLAZA DRIVE, SECAUCUS
Signature: Sean D. Mersten, Attorney in Fact for Michael J. Deppe
Signature date: 20 Feb 2026

Reported non-derivative transactions

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

DGX transaction

Common Stock

Award

Transaction value: $0
Shares: +366
Change %: +1.1%
Price: $0.000000
Shares after: 34,742
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F1

DGX transaction

Common Stock

Tax liability

Transaction value: $17,431
Shares: -83
Change %: -0.24%
Price: $210.01
Shares after: 34,659
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F2

DGX transaction

Common Stock

Tax liability

Transaction value: $20,492
Shares: -99
Change %: -0.29%
Price: $206.99
Shares after: 34,560
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F2, F3

DGX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 706
Date: 18 Feb 2026
Ownership: 401(k)
Footnotes: F4

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)

Award

Transaction value: $0
Shares: +1,688
Change %
Price: $0.000000
Shares after: 1,688
Date: 18 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,688
Exercise price: $204.96
Footnotes: F5

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Represents an award of restricted stock units.

Footnote F2

Disposition of common stock to the issuer solely to cover tax withholding obligations arising from the vesting of restricted stock units.

Footnote F3

The amount includes exempt purchases made under the Company's stock purchase plan since the date of the last filing on Form 4.

Footnote F4

These underlying shares were acquired on a periodic basis by the trustee of the Company's tax qualified Profit Sharing (401(k)) Plan. The information was obtained from the plan administrator as of a current date. The number of shares is based on the account balance of the Company stock fund under the Plan (which includes some money market instruments) divided by the market price of the Company's stock as of that date.

Footnote F5

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