Rhythm Pharmaceuticals, Inc. Common Stock (RYTM) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for RYTM. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 6,666,837 | $580M | UNCHANGED |
| BlackRock, Inc. | 6,237,151 | $542M | DECREASED |
| BAKER BROS. ADVISORS LP | 5,604,483 | $487M | UNCHANGED |
| PRIMECAP MANAGEMENT CO/CA/ | 3,417,509 | $297M | DECREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,040,718 | $264M | NEW |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Hunter C Smith (Chief Financial Officer) | EXERCISE | 3,000 | $54K | 2026-05-18 |
| Christopher Paul German (Corporate Controller & CAO) | EXERCISE | 1,406 | $25K | 2026-05-15 |
| Christopher Paul German (Corporate Controller & CAO) | EXERCISE | 1,349 | $66K | 2026-05-15 |
| Christopher Paul German (Corporate Controller & CAO) | EXERCISE | 1,687 | $96K | 2026-05-15 |
| Christopher Paul German (Corporate Controller & CAO) | SELL | 4,643 | $428K | 2026-05-15 |
Full institutional holdings, insider history, and congressional trades for Rhythm Pharmaceuticals, Inc. Common Stock on SentiSense.