Johannes Jacobus Oosthuizen - 04 May 2023 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role: President, U.S. Market
Signature: /s/ Kelly E. W. Grez, as attorney-in-fact for Johannes Oosthuizen
Issuer symbol: MRK
Transactions as of: 04 May 2023
Net transactions value: +$54,381
Form type: 4
Filing time: 05 May 2023, 17:09:36 UTC
Previous filing: 04 May 2023
Next filing: 31 Oct 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	$107,226	+907	+4.7%	$118.22	20,207	04 May 2023	Direct
transaction	MRK	Common Stock	Tax liability	$52,844	-447	-2.2%	$118.22	19,760	04 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	-907	-50%	$0.000000	912	04 May 2023	Common Stock	907		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.
F2	These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/4/2022, 5/4/2023 and 5/4/2024.