# Sionna Therapeutics (SION) — Overview

SION · NASDAQ · Stock

Canonical page: https://www.lighthorse.io/tickers/sion

## Price

Last close $4.08 on Oct 15, 2026. 52-week range $4.08 – $51.04.

## Company profile

Sionna Therapeutics Inc is a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF) patients by developing novel medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein to deliver clinically meaningful benefits to CF patients. CF is a progressive and life-threatening genetic disease caused by inherited mutations in the CFTR gene, which heads to insufficient CFTR function. The Company is managed as one operating segment focused on the research and development of cystic fibrosis therapies.

## Frequently Asked Questions

### How do I buy stock in Sionna Therapeutics (SION)?

SION trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web at [Light Horse Dashboard](https://portal.lighthorse.io), the trading API, or an [AI agent connected over MCP](/instructions/ai/claude). The trade panel on this page places the order once you are signed in.

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Data provided by [AInvest](https://www.ainvest.com).