Johannes Jacobus Oosthuizen - 30 Oct 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: 30 Oct 2023
Net transactions value: +$47,708
Form type: 4
Filing time: 31 Oct 2023, 11:08:20 UTC
Previous filing: 05 May 2023
Next filing: 13 Nov 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	$94,080	+915	+4.6%	$102.82	20,723	30 Oct 2023	Direct
transaction	MRK	Common Stock	Tax liability	$46,372	-451	-2.2%	$102.82	20,272	30 Oct 2023	Direct	F1

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	-915	-100%	$0.000000^*	0	30 Oct 2023	Common Stock	915		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 10/30/2021, 10/30/2022 and 10/30/2023.