Dean Li plans sale of 10,235 Merck shares

Merck & Co. insider transaction notice: A person filing for Merck (MRK) plans to sell 10,235 common shares through Morgan Stanley Smith Barney LLC on or about 02/10/2026 on the NYSE, with an aggregate market value of 1202843.81.

Rhea-AI Filing Summary

Merck & Co. insider transaction notice: A person filing for Merck (MRK) plans to sell 10,235 common shares through Morgan Stanley Smith Barney LLC on or about 02/10/2026 on the NYSE, with an aggregate market value of 1202843.81.

The shares to be sold were acquired as restricted stock vesting under a registered plan on 01/26/2026, in the same amount of 10,235 shares. Over the past three months, an individual named Dean Li sold 15,087 Merck common shares on 02/04/2026 for gross proceeds of 1791824.15.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for MRK disclose about upcoming share sales?

The Form 144 indicates an intended sale of 10,235 Merck (MRK) common shares. These shares are planned to be sold on or about February 10, 2026 on the NYSE through Morgan Stanley Smith Barney LLC, with an aggregate market value of about $1.20 million.

How many Merck (MRK) shares are being registered for potential sale in this Form 144?

The notice covers a planned sale of 10,235 Merck common shares. The filing lists these shares with an aggregate market value of $1,202,843.81 and identifies Morgan Stanley Smith Barney LLC as the broker handling the transaction on the NYSE around February 10, 2026.

How were the Merck (MRK) shares in the Form 144 acquired by the seller?

The 10,235 Merck shares were acquired as restricted stock vesting under a registered plan. The acquisition date shown is January 26, 2026, with the same 10,235-share amount and a payment date of January 26, 2026, marked as "Not Applicable" for the nature of payment.

What recent Merck (MRK) share sales by the same person are disclosed in the Form 144?

The filing reports that an individual named Dean Li sold 15,087 Merck common shares on February 4, 2026. These shares generated gross proceeds of $1,791,824.15 and are disclosed as securities sold during the past three months by the person for whose account shares are being sold.

What does the Form 144 say about the seller’s knowledge of Merck (MRK) information?

The signer represents that they do not know any material adverse information about Merck’s current or prospective operations that has not been publicly disclosed. The form also warns that intentional misstatements or omissions of facts constitute federal criminal violations under 18 U.S.C. 1001.

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Accepted by SEC EDGAR 02/10/2026 - 04:38 PM Learn about SEC filing dates

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	0001837016
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	DEAN LI
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	10235	1202843.81	2482022536	02/10/2026	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	01/26/2026	Restricted stock vesting under a registered plan	Issuer			10235	01/26/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
DEAN LI 126 East Lincoln Avenue Rahway NJ 07065	Common	02/04/2026	15087	1791824.15

144: Remarks and Signature

Remarks
Date of Notice	02/10/2026
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/ Dean Li
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)