How to Buy Sionna Therapeutics Stock
Sionna Therapeutics Inc
Sionna Therapeutics, Inc. is a biopharmaceutical company. The Company provides treatment paradigm for cystic fibrosis patients by developing medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator.
Sionna Therapeutics stock last closed at $42.26, down 0.42% from the previous day, and has decreased N/A in one year. It has underperformed other stocks in the Biotechnology industry by N/A percentage points. Sionna Therapeutics stock is currently +482.49% from its 52-week low of $7.26, and -6.09% from its 52-week high of $45.00.
As of Jan 30, 2026, there are 44.63M SION shares outstanding. The market capitalization of SION is $1.89B. In the past 24 hours, 227,000 SION shares were traded.
How to Buy Sionna Therapeutics Stock
Wondering how to invest in Sionna Therapeutics stock? Here's how.
- Decide where to buy Sionna Therapeutics stock: You need to choose an online brokerage, but don't worry - we've researched dozens of online stock brokerages and apps to help you figure out where to buy Sionna Therapeutics stock.
- Create a brokerage account: Sign up for 0% fee trading with the highest-rated brokerage we've selected.
- Put funds into your brokerage account: Pick your payment method and add your information.
- Evaluate Sionna Therapeutics stock: The Sionna Therapeutics ticker symbol is SION. Is Sionna Therapeutics stock a good investment? Should you buy shares of SION? How do SION's underlying business fundamentals look? Do top analysts think Sionna Therapeutics is a good buy? Why has SION's stock price moved recently? (Hint: Our stock market research website can help you decide if SION is a good stock to buy).
- Make your SION trade: Decide if you will purchase SION shares at the current market price or use a limit order to purchase SION shares at a specific price.
- Watch your SION position: Create a watchlist to keep tabs on your position in Sionna Therapeutics stock.
Step 1: Decide where to buy Sionna Therapeutics stock
You will need an online brokerage account to access the NASDAQ market and buy SION stock.
Our favorite brokerage: eToro
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Open eToro AccountStep 2: Create a brokerage account
Now that you've selected the best brokerage, you'll need to fill out some personal info so you can buy SION today.
How to Start a New Account on eToro
- Click here to get started.eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.
- Input your personal info to open a new trading account.
- Send your application by hitting the "Create Account" button. Get started with eToro today
Step 3: Put funds into your brokerage account
Now that you have created your account on the best stock trading app for beginners, you need to deposit funds:
Watch the video below for more details depositing money into your new investment account.
Step 4: Evaluate Sionna Therapeutics stock
Once you have decided on the best place to buy Sionna Therapeutics stock, it's very important to evaluate their stock prior to buying, so you can wrap your head around the risk as well as the upside.
Sionna Therapeutics Numbers
SION Due Diligence Score
WallStreetZen was built to help average investors do more accurate fundamental analysis in less time.
You can view all of the due diligence checks on SION's stock page.
What is the fair value of SION stock?
Investors use a variety of different financial metrics, analyses, models, and charts to gauge SION's fair value.
Using relative valuations ratios:
- SION could be overvalued based on its P/B ratio of 5.86x, relative to Biotechnology industry P/B ratio of 5.44x
You can access more valuation analysis on SION's stock here.
SION Financial Overview
Positive Health Checks:
- There are more short-term assets than long-term liabilities on the SION balance sheet.
- SION has a low debt to equity ratio of 0.06.
- There are more short-term assets than short-term liabilities on the SION balance sheet.
- SION has cash burn of 61652000. It has sufficient cash and short-term investments to cover this for at least one year.
- SION has $249.29M in cash and short term investments. This is sufficient to cover its annual cash burn of $61.65M.
Do Wall Street analysts think it's a good time to buy SION stock
Out of 6 Wall Street analysts who track SION, the consensus analyst rating on Sionna Therapeutics is a Strong Buy
It's important to note that analyst ratings are not recommendations, nor are they investment advice.
Most Recent SION Analyst Forecasts
Chris Raymond, a top 28% analyst from Raymond James initiates coverage on SION with a strong buy rating and announces their SION price target of $45.00, on Sep 3, 2025.
You can dig deeper into what analysts are projecting on the Sionna Therapeutics stock forecast page.
Metrics for Advanced SION Traders
Who is buying/selling SION?
Over the past 12 months, insiders at SION have bought more shares than they have sold.
Tpg GP A LLC, 10% Owner of SION, was the latest SION insider to sell. They sold $10,000,000.00 worth of SION shares on Jan 22, 2026.
Get more info about who owns SION stock here.
Does SION provide a stable income stream?
No, Sionna Therapeutics doesn't provide an income stream by paying out dividends.
SION Social Trading Data
One of the biggest reasons eToro is our highest-rated brokerage is because of its social trading community.
Click below to see what other investors have to say.
Step 5: Make your SION trade
There are two primary options:
- Market order: A market order is an order to buy or sell a stock at the best available price.
Market orders are generally the easiest way to buy. - Limit order: A limit order enables you to buy or sell a stock at a specific price (or better).
If you want to be certain you're buying or selling at a specific dollar amount limit, place a limit order.
Hit the Open button and eToro will execute the order.
If you need more help with investing in stocks on eToro, click the how to video below:
Step 6: Watch your SION position
Now that you own some SION shares, you'll want to keep up with your new stock purchase.
Add SION to a watchlist to track your SION stock.
SION Feed
How to Buy Stock in Sionna Therapeutics
To summarize, here are the 6 steps to buy stock in Sionna Therapeutics:
- Decide where to buy Sionna Therapeutics stock
- Create a brokerage account
- Put funds into your brokerage account
- Evaluate Sionna Therapeutics stock
- Make your SION trade
- Watch your SION position
If you are looking for a brokerage, eToro is our favorite venue.
Get Started with eToro TodayIf you would like to get the latest news on your new investment in Sionna Therapeutics, create your watchlist below.
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