Merck director Paul J. Diaz receives stock unit grant

Q: How many phantom stock units did MRK director Paul J. Diaz receive?

Paul J. Diaz, a Merck director, acquired 613.073 phantom stock units on November 1, 2026. The reported $149.52 is Merck common stock’s closing price on the business day immediately before the effective date of the director’s service.

The units are to be settled 100% in cash upon termination of service under a distribution schedule elected under the compensation plan.

Available on EDGAR 11/03/2026 - 04:42 PM EST Accepted by SEC EDGAR 11/03/2026 - 04:41 PM EST

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Rhea-AI Filing Summary

Merck & Co., Inc. director Paul J. Diaz received a grant of 613.073 phantom stock units on November 1, 2026, bringing his directly held phantom stock position to 613.073 units. The reported $149.52 is Merck common stock’s closing price on the business day immediately before the effective date of the director’s service. The units are to be settled 100% in cash upon termination of service under an elected distribution schedule.

Insider Trade Summary

Grant/Award: 613.073 shares

Grant/Award 1 txn

Insider DIAZ PAUL J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock ^{F1, F3, F2}	613.073	$149.52	$92K
Holding	Common Stock	--	--	--
Holding	Common Stock	--	--	--

Holdings After Transaction: Phantom Stock — 613.073 contracts (Direct); Common Stock — 200 shares (Direct); Common Stock — 96 shares (Indirect, By Reporting Person?s Revocable Trust)

Holdings Before and After: Phantom Stock, 0 to 613.073 contracts (Direct)

Footnotes (3)

F1. 1-for-1
F2. Phantom stock units are to be settled 100% in cash upon reporting person's termination of service in accordance with a distribution schedule elected pursuant to the terms of the Plan for Deferred Payment of Directors' Compensation.
F3. The price reported is the closing price of Merck Common Stock on the business day immediately prior to the effective date of the Director's service.

Key Figures

Phantom stock units granted: 613.073 units Reference closing price: $149.52 per share Direct common stock holdings: 200 shares +1 more

4 metrics

Phantom stock units granted 613.073 units Grant on November 1, 2026; directly held balance after the transaction

Reference closing price $149.52 per share Merck common stock closing price on the business day immediately before the effective date of the director’s service

Direct common stock holdings 200 shares Reported as of November 1, 2026

Common stock held through revocable trust 96 shares Indirect holding reported as of November 1, 2026

Key Terms

Phantom Stock, distribution schedule, Plan for Deferred Payment of Directors' Compensation

3 terms

Phantom Stock financial

"Phantom stock units are to be settled 100% in cash"

A phantom stock is a form of compensation that gives employees or executives the benefits of stock ownership, such as the increase in stock value, without actually giving them real shares. It acts like a promise to pay the employee the equivalent value of company stock later, often as a bonus or incentive. This allows companies to motivate and reward staff without diluting ownership or transferring actual shares.

distribution schedule financial

"in accordance with a distribution schedule elected"

Plan for Deferred Payment of Directors' Compensation financial

"pursuant to the terms of the Plan for Deferred Payment of Directors' Compensation"

FAQ

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How many phantom stock units did MRK director Paul J. Diaz receive?

Paul J. Diaz, a Merck director, acquired 613.073 phantom stock units on November 1, 2026. The reported $149.52 is Merck common stock’s closing price on the business day immediately before the effective date of the director’s service.

When are Paul J. Diaz’s MRK phantom stock units paid out?

The units are to be settled 100% in cash upon termination of service, in accordance with a distribution schedule elected under the Plan for Deferred Payment of Directors’ Compensation.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

DIAZ PAUL J

(Last)

(First)

(Middle)

126 EAST LINCOLN AVENUE

(Street)

RAHWAY

NEW JERSEY

07065

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Merck & Co., Inc. [ MRK ]

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)
11/01/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock								200	D
Common Stock								96	I	By Reporting Person?s Revocable Trust

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Phantom Stock	⁽¹⁾	11/01/2026		A		613.073		⁽²⁾	⁽²⁾	Common Stock	613.073	$149.52⁽³⁾	613.073	D

Explanation of Responses:

1. 1-for-1

2. Phantom stock units are to be settled 100% in cash upon reporting person's termination of service in accordance with a distribution schedule elected pursuant to the terms of the Plan for Deferred Payment of Directors' Compensation.

3. The price reported is the closing price of Merck Common Stock on the business day immediately prior to the effective date of the Director's service.

	/s/ Kelly Grez, as Attorney-in-Fact for Paul J. Diaz	11/03/2026
	** 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)

Source: View Original Filing on SEC EDGAR