Quest Diagnostics director receives 135 phantom stock units

The director's phantom units reflect deferred cash compensation and become payable in cash upon termination of director service.

Rhea-AI Filing Summary

Quest Diagnostics Inc. director Timothy C. Wentworth acquired 135 Phantom Stock Units on October 1, 2026, through elective deferrals of director cash compensation under the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors. His reported balance after the award was 477 Phantom Stock Units. The units become payable in cash upon termination of his service as a director.

Insider Trade Summary

Grant/Award: 135 shares

Grant/Award 1 txn

Insider WENTWORTH TIMOTHY C

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units F1	135	$0.00	$0.00

Holdings After Transaction: Phantom Stock Units — 477 contracts (Direct)

Footnotes (1)

1. F1. Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

Key Figures

Phantom Stock Units acquired: 135 units Phantom Stock Units after transaction: 477 units Underlying common stock shares: 135 shares

3 metrics

Phantom Stock Units acquired 135 units October 1, 2026

Phantom Stock Units after transaction 477 units Reported balance following the October 1, 2026 award

Underlying common stock shares 135 shares Underlying security listed for the Phantom Stock Units acquired October 1, 2026

Key Terms

Phantom stock units, elective deferrals, Amended and Restated Deferred Compensation Plan for Directors

3 terms

Phantom stock units financial

"Phantom stock units resulting from elective deferrals"

Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.

elective deferrals financial

"resulting from elective deferrals of a director's cash compensation"

Amended and Restated Deferred Compensation Plan for Directors financial

"Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many phantom stock units did DGX director Timothy C. Wentworth receive?

Timothy C. Wentworth, a director of Quest Diagnostics Inc., acquired 135 Phantom Stock Units on October 1, 2026, through elective deferrals of director cash compensation; his reported balance afterward was 477 Phantom Stock Units.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/02/2026 - 04:34 PM Accepted by SEC EDGAR 10/02/2026 - 04:33 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

WENTWORTH TIMOTHY C

(Last) (First) (Middle)

500 PLAZA DRIVE

C/O QUEST DIAGNOSTICS INC

(Street)

SECAUCUS NEW JERSEY 07094

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
QUEST DIAGNOSTICS INC [ DGX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock Units	$0	10/01/2026		A		135		(1)	(1)	Common Stock	135	$0	477	D

Explanation of Responses:

1. Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

Remarks:

	Sean D. Mersten, Attorney in Fact for Timothy C. Wentworth	10/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)