Stockholder plans sale of 20,000 shares

A holder of Common Stock of the issuer has filed a notice of proposed sale of 20,000 shares under Rule 144.

Accepted by SEC EDGAR 02/05/2026 - 04:25 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

A holder of Common Stock of the issuer has filed a notice of proposed sale of 20,000 shares under Rule 144. The shares have an indicated aggregate market value of $2,437,676.00 and are planned to be sold on the NYSE around 02/05/2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

The shares to be sold were acquired from the issuer as restricted stock vesting under a registered plan in several transactions during 2024, including lots of 19,489, 132, 127, and 125 shares. The notice states there are 2,482,022,536 shares of this class outstanding.

FAQ

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What does the MRK Rule 144 notice disclose?

The notice discloses a proposed sale of 20,000 common shares. The filing states these shares have an aggregate market value of $2,437,676.00 and are to be sold on the NYSE through Morgan Stanley Smith Barney LLC Executive Financial Services under Rule 144.

How many MRK shares are proposed to be sold under Rule 144?

The filing covers a proposed sale of 20,000 common shares. These shares are listed with an aggregate market value of $2,437,676.00, and the transaction is to be executed on the NYSE through Morgan Stanley Smith Barney LLC Executive Financial Services.

When is the planned MRK share sale expected to occur?

The notice lists an approximate sale date of 02/05/2026. On or around that date, the filer plans to sell 20,000 shares of common stock on the NYSE, using Morgan Stanley Smith Barney LLC Executive Financial Services as the broker.

How were the MRK shares to be sold acquired?

The shares were acquired as restricted stock vesting under a registered plan. Several vesting events in 2024 are listed, including lots of 19,489, 132, 127, and 125 shares, all acquired from the issuer with payment described as not applicable.

Which broker is handling the MRK Rule 144 stock sale?

Morgan Stanley Smith Barney LLC Executive Financial Services is the designated broker. The filing gives its address as 1 New York Plaza, 8th Floor, New York, NY 10004, and notes that the 20,000-share sale is intended to occur on the NYSE.

How many shares of this MRK class are outstanding?

The notice states that 2,482,022,536 shares are outstanding. This figure refers to the total number of shares of the same class as the 20,000 shares proposed for sale, providing context for the size of the planned Rule 144 transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001722753
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MERCK & CO., INC.
SEC File Number	001-06571
Address of Issuer	126 East Lincoln Avenue Rahway NEW JERSEY 07065
Phone	(732) 594-4000
Name of Person for Whose Account the Securities are To Be Sold	CHIRFI GUINDO
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	20000	2437676.00	2482022536	02/05/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/08/2024	Restricted stock vesting under a registered plan	Issuer			125	04/08/2024	Not Applicable
Common	08/03/2024	Restricted stock vesting under a registered plan	Issuer			19489	08/03/2024	Not Applicable
Common	01/09/2024	Restricted stock vesting under a registered plan	Issuer			132	01/09/2024	Not Applicable
Common	10/08/2024	Restricted stock vesting under a registered plan	Issuer			127	10/08/2024	Not Applicable
Common	07/09/2024	Restricted stock vesting under a registered plan	Issuer			127	07/09/2024	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	02/05/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Chirfi Guindo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)