RYTM holder plans sale of 3,247 common shares

A shareholder of RYTM filed a Form 144 notice to sell up to 3,247 shares of common stock through Morgan Stanley Smith Barney LLC on or about February 4, 2026 on NASDAQ.

Accepted by SEC EDGAR 02/04/2026 - 04:21 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

A shareholder of RYTM filed a Form 144 notice to sell up to 3,247 shares of common stock through Morgan Stanley Smith Barney LLC on or about February 4, 2026 on NASDAQ. The filing shows an aggregate market value of $351,617.63 for these shares.

The shares to be sold were acquired from the issuer as restricted stock units on February 3, 2025, in the same amount of 3,247 shares. The table also lists 66,736,056 shares outstanding for this class of common stock.

FAQ

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What does the RYTM Form 144 filing disclose?

The Form 144 discloses that a RYTM shareholder intends to sell up to 3,247 common shares with an aggregate market value of $351,617.63. The planned sale is through Morgan Stanley Smith Barney LLC on NASDAQ around February 4, 2026.

How many RYTM shares are planned for sale and on which exchange?

The filing indicates a planned sale of 3,247 RYTM common shares on the NASDAQ exchange. These shares are to be sold through Morgan Stanley Smith Barney LLC, with an aggregate market value reported as $351,617.63 in the notice.

How were the RYTM shares in this Form 144 originally acquired?

The shares were acquired as restricted stock units from the issuer on February 3, 2025. The table shows 3,247 shares acquired on that date, matching the number of shares that the shareholder now plans to sell under this Form 144 notice.

What is the reported market value of the RYTM shares to be sold?

The Form 144 lists an aggregate market value of $351,617.63 for the 3,247 common shares to be sold. This figure reflects the total value used in the notice when describing the planned sale through Morgan Stanley Smith Barney LLC on NASDAQ.

How many RYTM common shares are reported as outstanding in the filing?

The Form 144 table reports 66,736,056 common shares outstanding for RYTM. This number provides context for the planned sale of 3,247 shares but is a baseline figure for the class of stock, separate from the specific transaction disclosed.

When is the approximate sale date for the RYTM shares in this Form 144?

The notice states an approximate sale date of February 4, 2026 for the 3,247 RYTM common shares. The sale is to be executed on the NASDAQ exchange through Morgan Stanley Smith Barney LLC Executive Financial Services in New York.

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	0001636385
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	RHYTHM PHARMACEUTICALS INC
SEC File Number	001-38223
Address of Issuer	222 Berkeley Street, 12th Floor BOSTON MASSACHUSETTS 02116
Phone	8572644280
Name of Person for Whose Account the Securities are To Be Sold	HUNTER SMITH
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	3247	351617.63	66736056	02/04/2026	NASDAQ

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	02/03/2025	Restricted Stock Units	Issuer			3247	02/03/2025	N/A

* 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	02/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/28/2025
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/ Hunter Smith
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)