Sionna Therapeutics, Inc., a clinical-stage biopharmaceutical company, researches and develops medicines for the treatment of cystic fibrosis (CF).
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Sionna Therapeutics, Inc., a clinical-stage biopharmaceutical company, researches and develops medicines for the treatment of cystic fibrosis (CF). It develops galicaftor (SION-2222), a transmembrane domain 1 (TMD1)-directed cystic fibrosis transmembrane conductance regulator (CFTR) that has completed Phase 2 trial; navocaftor (SION-3067), a potentiator that has completed Phase 2 trial; SION-109, an intracellular loop 4 directed CFTR corrector that has completed Phase 1 trial; SION-2851, a TMD1-directed CFTR corrector that has completed Phase 1 trial; SION-451, which is nucleotide-binding domain 1 stabilizer in Phase 1 trial; and SION-719, which is nucleotide-binding domain 1 stabilizer in Phase 2a proof-of-concept trial. The company was formerly known as Sling Therapeutics, Inc. and changed its name to Sionna Therapeutics, Inc. in July 2021. Sionna Therapeutics, Inc. was incorporated in 2019 and is headquartered in Waltham, Massachusetts.
Sector: health
Conviction from: NASDAQ
52-week range: 4.0154.97
2 tracked filer(s) hold this · 1 opened, 0 added, 1 trimmed in 30-JUN-2026
Aggregate 13FScore 72 — mean of 2 scored holder(s) · buyers (new/add) avg 63. Higher = the smart money in this name has the better track record.
Beyond 13F — activists, insiders, politicians & research
| Filed | Form | Activist | % of class | Conviction | |
|---|
| 2026-04-20 | SCHEDULE 13D/A | ORBIMED ADVISORS LLC | 6.6% | Med | filing |