Betty D. Larson - 29 Apr 2025 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role: EVP, Chief HR Officer
Signature: /s/ Kelly E. W. Grez as Attorney-in-Fact for Betty Larson
Issuer symbol: MRK
Transactions as of: 29 Apr 2025
Net transactions value: $0
Form type: 4
Filing time: 01 May 2025, 17:58:12 UTC
Previous filing: 02 May 2024
Next filing: 02 May 2025
SEC: View on sec.gov

This filing has been restated, see here for the amended filing

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	MRK	Common Stock						6,197	29 Apr 2025	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	Award	$0	+6,257		$0.000000	6,257	29 Apr 2025	Common Stock	6,257		Direct	F1, F2
transaction	MRK	Stock Option (Right to Buy)	Award	$0	+28,479		$0.000000	28,479	29 Apr 2025	Common Stock	28,479	$84.71	Direct	F3

* 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 4/29/2026, 4/29/2027 and 4/29/2028.
F3	The option vests and becomes exercisable in three equal installments on 4/29/2026, 4/29/2027 and 4/29/2028.