Rhythm CMO files initial ownership, no holdings

Rhythm Pharmaceuticals, Inc. (RYTM) reports an initial statement of beneficial ownership on Form 3 for Joshi Manher, who serves as Chief Medical Officer.

Rhea-AI Filing Summary

Rhythm Pharmaceuticals, Inc. (RYTM) reports an initial statement of beneficial ownership on Form 3 for Joshi Manher, who serves as Chief Medical Officer. The filing lists no equity transactions or holdings and notes an attached Exhibit 24 for a Power of Attorney, authorizing filings to be made on the officer’s behalf.

Key Terms

Form 3, beneficial ownership, Power of Attorney

3 terms

Form 3 regulatory

"reports an initial statement of beneficial ownership on Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficial ownership financial

"reports an initial statement of beneficial ownership on Form 3"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Power of Attorney regulatory

"notes an attached Exhibit 24 for a Power of Attorney"

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

FAQ

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

What does the Form 3 filing for RYTM by Joshi Manher report?

The Form 3 for Rhythm Pharmaceuticals (RYTM) reports that Chief Medical Officer Joshi Manher has filed an initial statement of beneficial ownership, with no equity transactions or holdings reported in this filing.

Does the RYTM Form 3 for Joshi Manher show any stock purchases or sales?

No. The Form 3 for Joshi Manher at Rhythm Pharmaceuticals (RYTM) shows no reported stock purchases, sales, or other equity transactions; the transaction-related counts are all zero.

What position does Joshi Manher hold at Rhythm Pharmaceuticals (RYTM) in this Form 3?

In this Form 3, Joshi Manher is identified as an officer of Rhythm Pharmaceuticals (RYTM), with the title Chief Medical Officer, and is not listed as a director or 10% shareholder.

Are any derivative securities reported for Joshi Manher in the RYTM Form 3?

No. The Form 3 for Rhythm Pharmaceuticals (RYTM) indicates no derivative transactions or positions for Joshi Manher, with the derivative transaction and holding counts reported as zero.

What is the Exhibit 24 mentioned in the RYTM Form 3 for Joshi Manher?

Exhibit 24 in the Form 3 for Rhythm Pharmaceuticals (RYTM) is described as a Power of Attorney, allowing designated persons to execute and file SEC ownership reports on behalf of Joshi Manher.

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

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Available on EDGAR 08/18/2026 - 05:17 PM Accepted by SEC EDGAR 08/18/2026 - 05:17 PM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Joshi Manher

(Last) (First) (Middle)

C/O RHYTHM PHARMACEUTICALS, INC.

222 BERKELEY STREET, 12TH FLOOR

(Street)

BOSTON MASSACHUSETTS 02116

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/17/2026

3. Issuer Name and Ticker or Trading Symbol
RHYTHM PHARMACEUTICALS, INC. [ RYTM ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Medical Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/s/ Stephen Vander Stoep, attorney-in-fact for Manher Joshi	08/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)