Merck & Co., Inc. — Director's Dealing 2023

May 5, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co., Inc. (MRK)
CIK: 0000310158
Period of Report: 2023-05-02

Reporting Person: DeLuca Richard R. (EVP&Pres, Merck Animal Heallth)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-02	Stock Option (Right to Buy)	$117.89	A	44260	Acquired	2033-05-01	Common Stock (44260)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	154492.854	Direct
Common Stock - 401(k) Plan	1205.6632	Indirect

Footnotes

F1: The option vests and becomes exercisable in equal installments on 5/2/2024, 5/2/2025 and 5/2/2026.