Quest Diagnostics (DGX) director Timothy Wentworth files insider Form 3

Rhea-AI Filing Summary

QUEST DIAGNOSTICS INC director Timothy C. Wentworth filed an initial statement of beneficial ownership on Form 3. This filing establishes his status as an insider of the company. The filing does not report any stock purchases, sales, option exercises, gifts, or other transactions.

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

WENTWORTH TIMOTHY C

(Last) (First) (Middle)

500 PLAZA DRIVE

C/O QUEST DIAGNOSTICS INC

(Street)

SECAUCUS NJ 07094

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/09/2026

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

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

	Sean D. Mersten, Attorney in Fact for Timothy C. Wentworth	03/11/2026
	** 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 5 (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.

FAQ

What does Timothy C. Wentworth’s Form 3 filing for DGX indicate?

The Form 3 filing shows that Timothy C. Wentworth is now an insider of Quest Diagnostics Inc (DGX) as a director. It is an initial ownership report and does not include any reported stock purchases, sales, or other transactions.

Does the DGX Form 3 for Timothy C. Wentworth show any stock transactions?

The Form 3 for Quest Diagnostics Inc (DGX) reports no transactions for Timothy C. Wentworth. Summary data show zero buys, zero sells, zero option exercises, and no gifts or tax-withholding dispositions in connection with this initial filing.

What is the purpose of a Form 3 for Quest Diagnostics (DGX)?

A Form 3 for Quest Diagnostics Inc (DGX) is an initial statement of beneficial ownership filed when someone becomes an insider. It establishes disclosure of their relationship to the company but may not include any transaction activity at that time.

Is Timothy C. Wentworth a director or officer in the DGX Form 3 filing?

In the Form 3 for Quest Diagnostics Inc (DGX), Timothy C. Wentworth is identified as a director and not as an officer. The officer status fields are set to indicate he does not serve in an officer role in this filing.

Does the DGX Form 3 mention any derivative securities for Timothy C. Wentworth?

The Form 3 for Quest Diagnostics Inc (DGX) shows no derivative securities activity for Timothy C. Wentworth. The derivative transaction count and exercise share totals are all recorded as zero in the summarized data provided.