Sionna Therapeutics, Inc. · NASDAQ:SION
Ra Capital Management, L.P. reported a 23.70% stake in Sionna Therapeutics, Inc. (Schedule 13D)
Event Feb 10, 2025 · Filed Feb 18, 2025
Ra Capital Management, L.P. reported a 23.70% stake in Sionna Therapeutics, Inc., 10,445,322 shares, with active intent on Feb 10, 2025. Filed Feb 18, 2025 (Schedule 13D).
- Stake
- 23.70%
- Shares
- 10,445,322
- Intent
- Active
- What changed
- Crossed above 5%
- Filed together
- 5 holders
The filing in full
| Holder | Stake | Shares |
|---|---|---|
| RA Capital Management, L.P. | 23.70% | 10,445,322 |
| Peter Kolchinsky | 23.70% | 10,445,322 |
| Rajeev Shah | 23.70% | 10,445,322 |
| RA Capital Healthcare Fund, L.P. | 15.70% | 6,923,365 |
| RA Capital Nexus Fund III, L.P. | 5.30% | 2,324,498 |
Source
Related
- Sionna Therapeutics, Inc.
- Ra Capital Management, L.P.
- Sionna Therapeutics, Inc. shareholders
- Schedule 13D/A · Ra Capital Management, L.P. · Sep 21, 2026
- Schedule 13D/A · Ra Capital Management, L.P. · Nov 7, 2025
- Form 4 · Ra Capital Management, L.P. · Sep 21, 2026
- Form 4 · Ridloff Elena · Sep 18, 2026
- Form 4 · McKee Charlotte · Sep 18, 2026
- Form 4 · Fitzpatrick Jennifer · Sep 18, 2026
- Form 4 · Cloonan Michael · Sep 18, 2026