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 $42.77, up 2.52% 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 +489.52% from its 52-week low of $7.26, and -4.96% from its 52-week high of $45.00.
As of Dec 12, 2025, there are 44.63M SION shares outstanding. The market capitalization of SION is $1.91B. In the past 24 hours, 201,000 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.
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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.
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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 5.93x, relative to Biotechnology industry P/B ratio of 5.32x
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 5 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.
You can dive deeper into what analysts are forecasting on the Sionna Therapeutics stock forecast page.
Metrics for Advanced SION Traders
Latest Insiders Trades at SION
Over the last year, insiders at SION have bought more shares than they have sold.
Jennifer Fitzpatrick, Chief Legal Officer of SION, was the latest SION insider to buy. They bought $62,627.50 worth of SION stock on Dec 5, 2025.
Learn more about who owns SION stock here.
Can I rely on SION as an income stream?
No, Sionna Therapeutics doesn't provide an income stream by paying out dividends.
Get opinions from other investors
One of the primary reasons eToro is our top-rated brokerage is because of its social trading community.
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Step 5: Make your SION trade
You have two main types of orders:
- Market order: A market order is an order to buy or sell a security at the best available price.
Market orders are usually fine. - Limit order: A limit order lets you buy or sell a security at a specific price (or better).
If you want to be sure you're buying or selling at a specific price limit, use a limit order.
Press the Open button and your broker will place the order.
If you require additional help buying stocks on eToro, watch the helpful video below:
Step 6: Watch your SION position
Now that you own some shares in SION, you'll want to stay up-to-date on your new shares.
Create a watchlist to track your SION stock.
SION Feed
How to Buy Stock in Sionna Therapeutics
To summarize, here are the 6 steps for buying Sionna Therapeutics stock:
- 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 place to buy stocks, eToro is our favorite option.
Get Started with eToro TodayIf you want to keep an eye on your investment in Sionna Therapeutics, add SION to your watchlist by clicking the button below.
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