Caroline Litchfield - 01 May 2023 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role: EVP & CFO
Signature: /s/ Kelly E. W. Grez as attorney-in-fact for Caroline Litchfield
Issuer symbol: MRK
Transactions as of: 01 May 2023
Transactions value $: $50,691
Form type: 4
Filing time: 03 May 2023, 16:07:10 UTC
Previous filing: 25 Jan 2023
Next filing: 04 May 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MRK	Common Stock	Options Exercise	$100K	+866	+2.77%	$115.47	32.1K	01 May 2023	Direct	F1
transaction	MRK	Common Stock	Tax liability	-$49.3K	-427	-1.33%	$115.47	31.7K	01 May 2023	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	Restricted Stock Unit	Options Exercise	$0	-866	-100%	$0.00^*	0	01 May 2023	Common Stock	866		Direct	F2, F3

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

Explanation of Responses:

Id	Content
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.
F3	These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/1/2021, 5/1/2022 and 5/1/2023.