Director at Quest Diagnostics (NYSE: DGX) receives 1,142 RSUs

Rhea-AI Filing Summary

Gregg Vicky B reported acquisition or exercise transactions in this Form 4 filing.

Quest Diagnostics director Vicky B. Gregg received a compensation-related stock award. She was granted 1,142 shares of Quest Diagnostics common stock in the form of restricted stock units at no cash cost. Following this award, she directly holds 18,314 shares of Quest Diagnostics common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Gregg Vicky B

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,142	$0.00	--

Holdings After Transaction: Common Stock — 18,314 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 1,142 shares Grant price per share: $0.00 per share Shares owned after grant: 18,314 shares

3 metrics

RSU grant size 1,142 shares Restricted stock units awarded to director Vicky B. Gregg

Grant price per share $0.00 per share Reported transaction price for the RSU award

Shares owned after grant 18,314 shares Total Quest Diagnostics common shares held directly after transaction

Key Terms

restricted stock units, Common Stock, Grant, award, or other acquisition

3 terms

restricted stock units financial

"Represents an award of restricted stock units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

Form 4 Insider Transactions: What Each Field Means →

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^*

Gregg Vicky B

(Last) (First) (Middle)

500 PLAZA DRIVE

(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)
05/20/2026

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
Common Stock(1)	05/20/2026		A		1,142	A	$0	18,314	D

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

Explanation of Responses:

1. Represents an award of restricted stock units.

Remarks:

	Sean D. Mersten, Attorney in Fact for Vicky B. Gregg	05/21/2026
	** 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)

FAQ

What insider transaction did Quest Diagnostics (DGX) report for Vicky B. Gregg?

Quest Diagnostics reported that director Vicky B. Gregg received a grant of restricted stock units. The award covered 1,142 shares of common stock, classified as a compensation-related acquisition rather than an open-market purchase or sale.

How many Quest Diagnostics (DGX) shares were granted to Vicky B. Gregg?

Vicky B. Gregg was granted 1,142 shares of Quest Diagnostics common stock. The filing identifies this as a restricted stock unit award, meaning the shares are subject to vesting or similar conditions rather than being purchased on the open market.

What is Vicky B. Gregg’s Quest Diagnostics (DGX) shareholding after this Form 4?

After the restricted stock unit grant, Vicky B. Gregg directly holds 18,314 shares of Quest Diagnostics common stock. This total includes the newly awarded 1,142 shares, as reflected in the post-transaction ownership figure in the Form 4 filing.

Was Vicky B. Gregg’s Quest Diagnostics (DGX) Form 4 transaction a market buy or sell?

The Form 4 shows no market buy or sell by Vicky B. Gregg. Instead, it records a grant or award acquisition of 1,142 restricted stock units, with a reported transaction price of $0.00 per share, consistent with equity compensation.

What type of equity award did Quest Diagnostics (DGX) grant to Vicky B. Gregg?

Quest Diagnostics granted Vicky B. Gregg an award of restricted stock units. A footnote clarifies that the 1,142 reported shares represent restricted stock units, which generally convert into common shares according to vesting or service-based conditions.