Christine E. Seidman - 31 Dec 2025 Form 4 Insider Report for Merck & Co., Inc. (MRK)

Role
Director
Signature
/s/ Kelly E. W. Grez as Attorney-in-Fact for Christine E. Seidman
Issuer symbol
MRK
Transactions as of
31 Dec 2025
Net transactions value
+$8,125
Form type
4
Filing time
05 Jan 2026, 12:22:56 UTC
Previous filing
02 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Seidman Christine E Director MERCK & CO., INC., 126 EAST LINCOLN AVENUE, RAHWAY /s/ Kelly E. W. Grez as Attorney-in-Fact for Christine E. Seidman 05 Jan 2026 0001805745

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding MRK Common Stock 100 31 Dec 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 Phantom Stock Award $8,125 +77 +0.41% $105.26 19,026 31 Dec 2025 Common Stock 77 Direct F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 1-for-1
F2 Phantom stock units are to be settled 100% in cash upon reporting person's termination of service in accordance with a distribution schedule elected pursuant to the terms of the Plan for Deferred Payment of Directors' Compensation.
F3 Holdings include shares acquired in dividend reinvestment transactions.