How to Buy Biogen Stock
Biogen Inc
Biogen Inc. is a leading biotechnology firm dedicated to the discovery, development, production, and distribution of treatments for complex neurological and neurodegenerative conditions.
Biogen stock last closed at $210.65, up 0.85% from the previous day, and has increased 55.82% in one year. It has overperformed other stocks in the Drug Manufacturers - General industry by 0.1 percentage points. Biogen stock is currently +60.17% from its 52-week low of $131.52, and -4.13% from its 52-week high of $219.72.
As of Aug 13, 2026, there are 147.75M BIIB shares outstanding. The market value of BIIB is $31.12B. In the past 24 hours, 852,000 BIIB shares were traded.
How to Buy Biogen Stock
Not sure how to invest in Biogen stock? Here's how.
- Decide where to buy Biogen stock: You need to choose an online brokerage, but don't worry - we've tried dozens of online brokerages and apps to help you decide where to buy Biogen stock.
- Sign up for a brokerage account: Sign up for 0% commission trading with the highest-rated brokerage we've selected.
- Deposit funds into your brokerage account: Choose your payment method and add your info.
- Analyze Biogen stock: The Biogen ticker symbol is BIIB. Is Biogen stock a good investment? Should you buy shares of BIIB? How do BIIB's underlying business fundamentals look? Do top analysts think Biogen is a good buy? Why has BIIB's stock price moved recently? (Hint: Our stock research tools can help you understand if BIIB is a good stock to buy).
- Place your BIIB trade: Decide if you will purchase BIIB shares at the current market price or use a limit order to purchase BIIB shares at a specific price.
- Watch your BIIB investment: Create a watchlist to track your new investment in Biogen stock.
Step 1: Decide where to buy Biogen stock
You will need an online brokerage account in order to access the NASDAQ market and buy BIIB shares.
Our favorite brokerage: eToro
In our opinion, eToro is the best stock brokerage. eToro gives you:
- Invest in stocks with 0% commissions: Invest without commissions.
- Buy fractional shares: Even if you don't have the money to buy a full share, you can still buy the stock.
- Access to world markets: From Technology to Energy, New York to Hong Kong (for US users, only US stocks are available) — you can fill your portfolio with stocks from the globe's leading stock exchanges.
- Social investing: eToro boasts a community with more than 20 million users globally. Talk to, learn from, and copy the unique crypto portfolios of top investors.
- Security: eToro is a regulated and licensed brokerage platform.
- Buy other financial assets: Such as ETFs and cryptos.
Get $10 towards your purchase of stock by creating an account with eToro now. This offer is only for US users.
Open eToro AccountStep 2: Sign up for a brokerage account
Now that you've chosen the right brokerage, you'll need to fill out some personal information so you can invest in BIIB today.
How to Create 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.
- Provide your personal data to start a new trading account.
- Send your data by pressing the "Create Account" button. Get started with eToro today
Step 3: Deposit funds into your brokerage account
Now that you've filled out your info on the stocks app, you need to deposit funds:
Check out the walkthrough below to see the process of transferring money into your new brokerage account.
Step 4: Analyze Biogen stock
After you have decided on the best place to buy Biogen stock, it's crucial to analyze their stock before you invest, so you can wrap your head around the risk as well as the opportunity.
Biogen stock data
BIIB Overview
WallStreetZen was built to help part-time investors do better fundamental analysis in minutes instead of hours.
You can see all of the due diligence checks on BIIB's stock page.
Is BIIB stock undervalued?
Investors use many financial metrics, analyses, models, and charts to gauge BIIB's intrinsic value.
Using relative valuations metrics:
- BIIB could be undervalued based on its P/E ratio of 37.09x, relative to Drug Manufacturers - General industry P/E ratio of 38.33x
- BIIB could be undervalued based on its P/B ratio of 1.65x, relative to Drug Manufacturers - General industry P/B ratio of 7.92x
- BIIB may be undervalued based on its PEG ratio of 0.75x
You can do additional valuation research on BIIB's stock here.
BIIB Financials at a glance
Pros:
- There are more short-term assets than short-term liabilities on the BIIB balance sheet.
- Total BIIB debt is lower than 5 years ago, relative to shareholder equity.
- BIIB's operating cash flow of $2.88B allows it to safely service it's debt of $8.36B.
- BIIB earnings of $1.01B is not sufficient to cover its interest payments.
Cons:
- BIIB profit margin has gone down from 15.3% to 8.3% in the past year.
- BIIB has a relatively high debt to equity ratio of 0.7.
- There are more long-term liabilities than short-term assets on the BIIB balance sheet.
Is it a good time to buy Biogen stock, according to analysts?
Out of 23 Wall Street analysts who track BIIB, the consensus analyst rating on Biogen is a Buy
It's important to note that analyst forecasts are not recommendations, nor are they financial advice.
Most Recent BIIB Analyst Ratings
Matthew Harrison, a top 20% analyst from Morgan Stanley maintains BIIB with a hold rating and raises their BIIB price target from $222.00 to $231.00, on Jul 30, 2026.
Brian Abrahams, a top 9% analyst from RBC Capital maintains BIIB with a buy rating and lowers their BIIB price target from $242.00 to $240.00, on Jul 30, 2026.
Sumant Kulkarni, a top 19% analyst from Canaccord Genuity maintains BIIB with a strong buy rating and raises their BIIB price target from $245.00 to $248.00, on Jul 30, 2026.
Phil Nadeau, a top 16% analyst from TD Cowen maintains BIIB with a strong buy rating and raises their BIIB price target from $215.00 to $225.00, on Jul 30, 2026.
Laura Chico, a top 3% analyst from Wedbush maintains BIIB with a hold rating and raises their BIIB price target from $201.00 to $215.00, on Jul 30, 2026.
You can dig deeper into what analysts are forecasting on the Biogen stock forecast page.
BIIB Momentum
BIIB Earnings
Last year, BIIB earnings were $834.60M. During the last 5 year, BIIB's earnings have grown by -14.92% per year. This was slower than the Drug Manufacturers - General industry average of 11.56%.
Last year, BIIB revenue was $10.03B. During the past five year, BIIB's revenue has gone up by -3.03% per year. This was slower than the Drug Manufacturers - General industry average of 10.55%.
Dive into BIIB's earnings and revenue performance here.
Who is buying/selling BIIB?
Over the past year, executives and large shareholders at BIIB have sold more shares than they have bought.
Lloyd Minor, Director of BIIB, was the latest BIIB insider to sell. They sold $119,169.28 worth of BIIB shares on Aug 4, 2026.
Research more about who owns BIIB shares here.
Can I get consistent income from BIIB stock?
No, Biogen doesn't provide an income stream by paying out dividends.
What do other traders have to say about BIIB?
One of the primary reasons eToro is our top-rated brokerage is because of its social trading community.
Click below to see what other investors have to say.
Step 5: Place your BIIB trade
You have two main options:
- Market order: A market order is an order to buy or sell a stock at the best price on the market.
Market orders are usually sufficient. - Limit order: A limit order enables you to buy or sell a security at a specific price (or better).
If you want to be sure you're buying or selling at an exact price, use a limit order.
Press the Open Trade button and eToro will execute the order.
If you want additional help with investing in stocks on eToro, watch the helpful video below:
Step 6: Watch your BIIB investment
Now that you own some BIIB shares, you'll want to stay up-to-date on your stock purchase.
Start a watchlist to track the most important metrics related to your BIIB stock.
BIIB Feed
How to Buy Stock in Biogen
To reiterate, here are the 6 steps you need to take to buy Biogen stock right now:
- Decide where to buy Biogen stock
- Sign up for a brokerage account
- Deposit funds into your brokerage account
- Analyze Biogen stock
- Place your BIIB trade
- Watch your BIIB investment
If you are looking for a online brokerage, eToro is our favorite venue.
Get Started with eToro TodayIf you want to watch your investment in Biogen, click the button below.
More Stock Buying Guides You Might Enjoy
FAQ
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletterInformation is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.