Quest Diagnostics SVP Plewman acquires 41 shares

The acquisition was eligible for deferred reporting under Rule 16a-6 but was reported early.

Rhea-AI Filing Summary

Quest Diagnostics Inc. (DGX) SVP for Diagnostic Services Patrick Plewman acquired 41 common shares on October 21, 2026, at $235.94 per share through a dividend reinvestment plan administered by his broker. He directly held 15,334 shares after the transaction. The acquisition was eligible for deferred reporting under Rule 16a-6 but was reported early. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Small Acquisition: 41 shares

Small Acquisition 1 txn

Insider Plewman Patrick

Role SVP for Diagnostic Services

Type	Security	Shares	Price	Value
Small Acquisition	Common Stock F1	41	$235.94	$10K

Holdings After Transaction: Common Stock — 15,334 shares (Direct)

Footnotes (1)

1. F1. 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

Acquired common shares: 41 shares Price per share: $235.94 per share Direct shares held after transaction: 15,334 shares

3 metrics

Acquired common shares 41 shares October 21, 2026

Price per share $235.94 per share Acquisition on October 21, 2026

Direct shares held after transaction 15,334 shares After the October 21, 2026 transaction

Key Terms

dividend reinvestment plan, deferred reporting, Rule 16a-6

3 terms

dividend reinvestment plan financial

"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.

deferred reporting regulatory

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

Rule 16a-6 regulatory

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

FAQ

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

How many DGX shares did Patrick Plewman acquire, and at what price?

Patrick Plewman acquired 41 shares at $235.94 per share on October 21, 2026. The shares were acquired through a dividend reinvestment plan administered by his broker, and he directly held 15,334 shares after the transaction.

Why was Patrick Plewman's DGX transaction reported early?

The 41 shares were eligible for deferred reporting under Rule 16a-6, but Plewman chose to report the transaction early.

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

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Available on EDGAR 10/23/2026 - 07:32 PM EDT Accepted by SEC EDGAR 10/23/2026 - 07:31 PM EDT 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^*

Plewman Patrick

(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 for Diagnostic Services

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/21/2026

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	10/21/2026		L	V	41(1)	A	$235.94	15,334	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. 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 Patrick Plewman	10/23/2026
	** 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)