Douglas M. Baker Jr. - 30 May 2025 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role: Director
Signature: /s/ Kelly E. W. Grez as attorney-in-fact for Douglas M. Baker, Jr.
Issuer symbol: MRK
Transactions as of: 30 May 2025
Net transactions value: +$220,000
Form type: 4
Filing time: 03 Jun 2025, 12:49:42 UTC
Previous filing: 14 Mar 2025
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
BAKER DOUGLAS M JR	Director	MERCK & CO., INC., 126 EAST LINCOLN AVENE, RAHWAY	/s/ Kelly E. W. Grez as attorney-in-fact for Douglas M. Baker, Jr.	03 Jun 2025	0001198753

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	MRK	Common Stock						16,000	30 May 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MRK	Phantom Stock	Award	$220,000	+2,863	+44%	$76.84	9,344	30 May 2025	Common Stock	2,863		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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	Holdings include shares acquired in dividend reinvestment transactions.