Sionna Therapeutics
IPOPublic · Waltham, United States · Founded 2019 · $293.0M raised
- Headquarters
- Waltham, Massachusetts
- Employees
- 11–50
- Founded
- 2019
- Business Model
- B2B
- Website
- sionnatx.com
- Total Funding
- $293.0M
- Last Round
- $182.0M Series CMar 2024
- Rounds
- 2
- Type
- Public
About
Sionna Therapeutics is a clinical-stage biopharmaceutical company founded in 2019 to develop novel treatments for cystic fibrosis by targeting NBD1, the site of the most common CF-causing mutation. The company is advancing a portfolio of NBD1 stabilizers and complementary CFTR modulators designed to work synergistically to normalize CFTR function beyond current approved therapies.
Summary
Sionna Therapeutics is a Biotech company based in Waltham, United States, founded in 2019. It has raised $293.0M in total across 2 rounds, most recently a $182.0M Series C round in Mar 2024. Investors include OrbiMed, T. Rowe Price and Atlas Venture.
Tech & App Stack
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Funding History
Feb 2025
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Series B through IPO — per-round amounts, valuations, and who invested in each round.
Investors
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