Notice of Proposed Sale · 144
Rhythm Pharmaceuticals, Inc.
RYTMNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- RHYTHM PHARMACEUTICALS, INC.
- Issuer CIK
- 0001649904
- SEC file number
- 001-38223
- Phone
- 8572644280
- Person for whose account securities are to be sold
- Jennifer Kayden Lee
- Relationships to issuer
- Officer
- Street
- 222 Berkeley Street, 12th Floor
- City
- BOSTON
- State / country code
- MA
- Postal code
- 02116
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 75,834 | 8,918,078.40 | 68,852,082 | 08/13/2026 | NASDAQ | Morgan Stanley Smith Barney LLC Executive Financial Services |
Broker / market maker — proposed row 1, entry 1
- Name
- Morgan Stanley Smith Barney LLC Executive Financial Services
- Street
- 1 New York Plaza
- Street (continued)
- 8th Floor
- City
- New York
- State / country code
- NY
- Postal code
- 10004
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 08/13/2026 | Exercise of Stock Options | Issuer | 56,601 | N | 08/13/2026 | Cash |
| Common | 02/11/2024 | Restricted Stock Units | Issuer | 19,233 | N | 02/11/2024 | N/A |
Prior-sale reporting
- Nothing to report for the preceding three months
- Y
Remarks
The securities to be sold were acquired upon the vesting of restricted stock units during the period of 2/11/2024 through 2/1/2026
Notice signature
- Notice date
- 08/13/2026
- Signed
- /s/ Jennifer Kayden Lee
- Plan adoption dates
- 05/14/2026