Karthik Kuppusamy - 04 Jun 2026 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)

Reporting relationship: SVP, Clinical Solutions
Issuer ticker: DGX
Reported as of: 04 Jun 2026
Net transaction value: -$1,629,400
SEC form: 4
Accepted by SEC: 08 Jun 2026, 16:32:30 UTC
Prior SEC filing: 24 Apr 2026
Next SEC filing: 27 Jul 2026
Source filing: View source filing
Reporting owner signature: Sean D. Mersten, Attorney in Fact for Karthik Kuppusamy

Key filing fact

Karthik Kuppusamy filed Form 4 for QUEST DIAGNOSTICS INC (DGX) on 08 Jun 2026.

Key facts

This page summarizes Karthik Kuppusamy's Form 4 filing for QUEST DIAGNOSTICS INC (DGX).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 08 Jun 2026, 16:32.

Change

Previous filing in this sequence was filed on 24 Apr 2026.
Current net transaction value: -$1,629,400.

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 0001955217 Primary reporting owner

KUPPUSAMY KARTHIK

Relationship: SVP, Clinical Solutions
Address: 500 PLAZA DRIVE, C/O QUEST DIAGNOSTICS INC, SECAUCUS
Signature: Sean D. Mersten, Attorney in Fact for Karthik Kuppusamy
Signature date: 08 Jun 2026

Reported non-derivative transactions

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

DGX transaction

Common Stock

Options Exercise

Transaction value
Shares: +3,320
Change %: +25%
Price: $127.72^*
Shares after: 16,830
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1

DGX transaction

Common Stock

Options Exercise

Transaction value
Shares: +4,827
Change %: +29%
Price: $121.80^*
Shares after: 21,657
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1

DGX transaction

Common Stock

Sale

Transaction value: $1,629,400
Shares: -8,147
Change %: -38%
Price: $200.00
Shares after: 13,510
Date: 04 Jun 2026
Ownership: Direct
Footnotes: F1, F2

DGX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,721
Date: 04 Jun 2026
Ownership: 401(k)
Footnotes: F3

DGX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 358
Date: 04 Jun 2026
Ownership: By Trust

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
Shares: -3,320
Change %: -100%
Price: $127.72^*
Shares after: 0
Date: 04 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,320
Exercise price: $127.72
Footnotes: F1, F4

DGX transaction Derivative

Non-Qualifed Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -4,827
Change %: -100%
Price: $121.80^*
Shares after: 0
Date: 04 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,827
Exercise price: $121.80
Footnotes: F1, F5

^* 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 5 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 amount includes exempt purchases made under the Company's stock purchase plan since the date of the last filing on Form 4.

Footnote F3

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 F4

The options vested in three annual installments beginning with the first on February 24, 2023, the second on February 24, 2024 and the final on February 24, 2025.

Footnote F5

The options vested in three annual installments beginning with the first on February 17, 2022, the second on February 17, 2023 and the final on February 17, 2024.