Quest Diagnostics (NYSE: DGX) SVP adds 37 shares through dividend reinvestment

Rhea-AI Filing Summary

Quest Diagnostics senior executive Mark E. Delaney reported a small automatic share acquisition. On April 20, 2026, he acquired 37 shares of Quest Diagnostics common stock at $194.696 per share through a dividend reinvestment plan under Rule 16a-6. Following this transaction, he directly holds 11,901 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider DELANEY MARK E

Role SVP & Chief Commercial Officer

Type	Security	Shares	Price	Value
L	Common Stock	37	$194.696	$7K

Holdings After Transaction: Common Stock — 11,901 shares (Direct, null)

Footnotes (1)

1. Represents an award of restricted share units. Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

Key Figures

Shares acquired: 37 shares Price per share: $194.696 per share Post-transaction holdings: 11,901 shares +1 more

4 metrics

Shares acquired 37 shares Common Stock, transaction date April 20, 2026

Price per share $194.696 per share Acquisition through dividend reinvestment plan

Post-transaction holdings 11,901 shares Common Stock held directly after transaction

Transaction code L (small acquisition) Non-derivative transaction under Rule 16a-6

Key Terms

restricted share units, dividend reinvestment plan, Rule 16a-6

3 terms

restricted share units financial

"Represents an award of restricted share units."

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

dividend reinvestment plan financial

"shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker"

A dividend reinvestment plan lets shareholders automatically use cash dividends to buy more shares of the same company instead of receiving the money. It matters to investors because it turns regular payouts into a steady way to grow ownership and take advantage of compound returns—like having your savings automatically buy additional slices of a pie over time—while often reducing transaction costs and smoothing purchase timing.

Rule 16a-6 regulatory

"eligible for deferred reporting on Form 5 under Rule 16a-6"

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^*

DELANEY MARK E

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & Chief Commercial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026

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)	04/20/2026		L	V	37(2)	A	$194.696	11,901	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 share units.

2. Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

Remarks:

	Sean D. Mersten, Attorney in Fact for Mark E. Delaney	04/24/2026
	** 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 Mark E. Delaney?

Quest Diagnostics reported that Mark E. Delaney acquired 37 shares of common stock on April 20, 2026. The acquisition was coded as a small acquisition under Rule 16a-6 and was executed through a dividend reinvestment plan administered by his broker.

How many Quest Diagnostics (DGX) shares does Mark E. Delaney hold after this Form 4?

After the reported transaction, Mark E. Delaney directly holds 11,901 shares of Quest Diagnostics common stock. This reflects the addition of 37 shares acquired via the broker-administered dividend reinvestment plan described in the Form 4 and associated footnotes.

What does the transaction code "L" mean in the Quest Diagnostics (DGX) Form 4?

In this Form 4, the "L" transaction code represents a small acquisition under SEC Rule 16a-6. The filing notes that the 37 shares were acquired through a dividend reinvestment plan and are eligible for deferred reporting on Form 5, which Delaney chose to report early.

How were the newly acquired Quest Diagnostics (DGX) shares obtained in this filing?

The 37 Quest Diagnostics shares were acquired through a dividend reinvestment plan run by Mark E. Delaney’s broker. Dividends were automatically reinvested into additional common shares, and this acquisition qualifies as a small transaction under Rule 16a-6 according to the Form 4 footnote.

Does the Quest Diagnostics (DGX) Form 4 mention restricted share units for Mark E. Delaney?

Yes. A footnote in the filing states that a portion of the reported position represents an award of restricted share units. These RSUs are separate from the 37 shares acquired via the dividend reinvestment plan but contribute to Delaney’s overall equity-based compensation exposure.