Mathers Edward T. - 12 Mar 2026 Form 4 Insider Report for RHYTHM PHARMACEUTICALS, INC. (RYTM)

Reporting relationship: Director
Issuer ticker: RYTM
Reported as of: 12 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Mar 2026, 16:11:55 UTC
Prior SEC filing: 12 Mar 2026
Next SEC filing: 04 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Zachary Bambach, attorney-in-fact

Key filing fact

Mathers Edward T. filed Form 4 for RHYTHM PHARMACEUTICALS, INC. (RYTM) on 16 Mar 2026.

Key facts

This page summarizes Mathers Edward T.'s Form 4 filing for RHYTHM PHARMACEUTICALS, INC. (RYTM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 16 Mar 2026, 16:11.

Change

Previous filing in this sequence was filed on 12 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001328625 Primary reporting owner

Mathers Edward T

Relationship: Director
Address: 104 5TH AVE, 19TH FLOOR, NEW YORK
Signature: /s/ Zachary Bambach, attorney-in-fact
Signature date: 16 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RYTM transaction

Common Stock

Other

Transaction value
Shares: +4,199
Change %: +42%
Price: $0.000000^*
Shares after: 14,168
Date: 12 Mar 2026
Ownership: See Note 2
Footnotes: F1, F2

RYTM holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,000
Date: 12 Mar 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

NEA Partners 13, L.P. ("NEA Partners 13") made a pro rata distribution for no consideration of shares of Common Stock of the Issuer to its limited partners on March 12, 2026. The Edward Timothy Mathers Revocable Trust (the "Mathers Trust") received 4,199 shares of Common Stock of the Issuer in the distribution by NEA Partners 13 on March 12, 2026.

Footnote F2

The Reporting Person is the trustee of the Mathers Trust, which is the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by the Mathers Trust in which the Reporting Person has no pecuniary interest.