Merck & Co., Inc. — Director's Dealing 2017

May 3, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co., Inc. (MRK)
CIK: 0000310158
Period of Report: 2017-05-02

Reporting Person: Chattopadhyay Sanat (Exe V-P & Pres. MMD)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-02	Common Stock	M	3092.0000	$0.0000	Acquired	43636.5480	Direct
2017-05-02	Common Stock	F	974.0000	$62.3800	Disposed	42662.5480	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-02	Restricted Stock Unit	$	M	3092.0000	Disposed	2017-05-02	Common Stock (3092.0000)	Direct

Footnotes

F1: Holdings include shares acquired in dividend reinvestment transactions.

F2: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.