Richard R. DeLuca - 04 May 2024 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role: EVP&Pres, Merck Animal Heallth
Signature: /s/ Kelly E. W. Grez as Attorney-in-Fact for Richard R. DeLuca, Jr.
Issuer symbol: MRK
Transactions as of: 04 May 2024
Net transactions value: +$1,755,303
Form type: 4
Filing time: 06 May 2024, 16:08:55 UTC
Previous filing: 02 May 2024
Next filing: 29 Jan 2025
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	$3,458,836	+27,126	+20%	$127.51	163,720	04 May 2024	Direct
transaction	MRK	Common Stock	Tax liability	$1,703,534	-13,360	-8.2%	$127.51	150,360	04 May 2024	Direct	F1
holding	MRK	Common Stock - 401(k) Plan						1,237	04 May 2024	By 401(k)	F2

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	-27,126	-100%	$0.000000^*	0	04 May 2024	Common Stock	27,126		Direct	F3, F4

* 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	Includes shares acquired and dividends earned through April 5, 2024 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.
F4	These restricted stock units vested and were distributed as shares of Merck & Co., Inc. common stock in one installment on 5/4/2024.