SC 13D/AThe Stakes
Sionna Therapeutics, Inc. files SC 13D/A
Filed Apr 20, 2026 · 2mo ago · Accession 0000947871-26-000456
Plain English
Activist stake — an investor has acquired more than 5% with intent to influence.
Read the source below for the full document.
Filing details
- Company
- Sionna Therapeutics, Inc.
- Ticker
- SION
- CIK
- 2036042
- Form type
- SC 13D/A
- Filing date
- Apr 20, 2026
- Report date
- —
- Document
- —
- Size
- —