Merck & Co., Inc. — Director's Dealing 2025

Apr 29, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co., Inc. (MRK)
CIK: 0000310158
Period of Report: 2025-04-25

Reporting Person: Smart Dalton E. III (SVP Fin. - Global Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-25	Common Stock	M	5000	$58.08	Acquired	12039.802	Direct
2025-04-25	Common Stock	S	4262	$82.76	Disposed	7777.802	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-25	Stock Option (Right to Buy)	$58.08	M	5000	Disposed	2025-04-30	Common Stock (5000)	Direct

Footnotes

F1: Holdings include shares acquired in dividend reinvestment transactions.

F2: The option became exercisable in equal installments on 5/1/2016, 5/1/2017 and 5/1/2018.