Sale of 15087 MRK (NYSE: MRK) shares planned under Rule 144 notice

Rhea-AI Filing Summary

A holder of MRK common stock filed a notice of proposed resale under Rule 144. The filing covers 15087 shares of common stock with an aggregate market value of 1791824.15, to be sold through Morgan Stanley Smith Barney LLC on the NYSE around 02/04/2026.

These shares were acquired on 02/04/2026 by exercising stock options under a registered plan, with the 15087 shares paid for in cash. The filing notes that 2482022536 shares of the issuer’s common stock were outstanding, providing context for the size of the planned sale.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	15087	1791824.15	2482022536	02/04/2026	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	02/04/2026	Exercise of options under a registered plan	Issuer			15087	02/04/2026	Cash

* 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

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the MRK Form 144 filing disclose?

The filing discloses a proposed Rule 144 resale of 15087 MRK common shares. These shares have an aggregate market value of 1791824.15 and are planned to be sold on the NYSE through Morgan Stanley Smith Barney LLC around 02/04/2026.

How many MRK shares are being proposed for sale under this Rule 144 notice?

The notice covers a proposed sale of 15087 shares of MRK common stock. The filing also states an aggregate market value of 1791824.15 for these shares and indicates they are to be sold on the NYSE via Morgan Stanley Smith Barney LLC.

How and when were the MRK shares in this Form 144 acquired?

The 15087 MRK shares were acquired on 02/04/2026 by exercising stock options under a registered plan. The filing specifies that the acquisition was paid in cash on the same date, directly linking the option exercise to the planned Rule 144 sale.

What does the Form 144 say about MRK shares outstanding?

The filing states that 2482022536 shares of the issuer’s common stock were outstanding. This figure provides context for the relative size of the proposed sale of 15087 shares, showing the transaction is small compared with the total shares outstanding.

Which broker is handling the planned MRK share sale in this filing?

The proposed Rule 144 sale will be handled by Morgan Stanley Smith Barney LLC Executive Financial Services. The filing lists its address as 1 New York Plaza, 8th Floor, New York, NY 10004, and indicates the shares are expected to be sold on the NYSE.