RA Capital Management, L.P. 13D and 13G filings for Rhythm Pharmaceuticals, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-02-17 4:41 pm Purchase | 2025-12-31 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 6,666,837 9.900% | 1,105,478 (+19.88%) | Filing |
| 2025-08-14 6:04 pm Sale | 2025-06-30 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 5,561,359 8.700% | -523,053 (-8.60%) | Filing |
| 2024-11-14 5:46 pm Purchase | 2024-09-30 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 6,084,412 9.950% | 754,000 (+14.15%) | Filing |
| 2024-02-14 5:01 pm Sale | 2023-12-31 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 5,330,412 9.000% | -185,655 (-3.37%) | Filing |
| 2023-02-14 4:45 pm Purchase | 2022-12-31 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 5,516,067 9.800% | 645,000 (+13.24%) | Filing |
| 2022-02-14 4:11 pm Purchase | 2021-12-31 | 13G | Rhythm Pharmaceuticals, Inc. RYTM | RA Capital Management, L.P. | 4,871,067 9.700% | 692,000 (+16.56%) | Filing |