Merck & Co., Inc. — Director's Dealing 2019

May 13, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co., Inc. (MRK)
CIK: 0000310158
Period of Report: 2019-05-10

Reporting Person: Nally Michael (EVP, Chief Marketing Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-10	Common Stock	M	1811.0000	$0.00	Acquired	4376.0650	Direct
2019-05-10	Common Stock	F	516.0000	$78.33	Disposed	3860.0650	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-10	Restricted Stock Unit	$	M	1811.0000	Disposed	2019-05-10	Common Stock (1811.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - 401(k) Plan	1502.5092	Indirect

Footnotes

F1: Holdings include shares acquired in dividend reinvestment transactions.

F2: Includes shares acquired and dividends earned through April 5, 2019, in the Merck U.S. Savings Plan, a 401(k) plan.

F3: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.