Quick Takeaways
- PERCEPTIVE ADVISORS LLC filed SCHEDULE 13G/A for Rhythm Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (RYTM).
- Disclosed ownership: 6.8%.
- Date of event: 31 Mar 2025.
PERCEPTIVE ADVISORS LLC - 31 Mar 2025 SCHEDULE 13G/A Report for Rhythm Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (RYTM)
- Filing Manager
- PERCEPTIVE ADVISORS LLC
- Reporting Manager
- Perceptive Advisors LLC
- Symbol
- RYTM
- Shares outstanding
- 65,050,603 shares
- Disclosed Ownership
- 4,423,441 shares
- Ownership
- 6.8%
- Form type
- SCHEDULE 13G/A
- Filing time
- 15 May 2025, 18:20:49 UTC
- Date of event
- 31 Mar 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"PERCEPTIVE ADVISORS LLC disclosed 6.8% ownership in Rhythm Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (RYTM) on 31 Mar 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 15 May 2025, 18:20.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Perceptive Advisors LLC | 6.8% | 4,423,441 | 0 | 4,423,441 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | |
| Joseph Edelman | 6.8% | 4,423,441 | 0 | 4,423,441 | /s/ Joseph Edelman | Joseph Edelman | |
| Perceptive Life Sciences Master Fund, Ltd. | 4.5% | 2,965,121 | 0 | 2,965,121 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | |
| Perceptive Discovery ID LP | 2.2% | 1,458,330 | 0 | 1,458,330 | /s/ Joseph Edelman | Joseph Edelman, Managing Member |