NASDAQ: BIIB
Biogen Inc Stock

$207.13-0.81 (-0.39%)
Updated Aug 10, 2026
BIIB Price
$207.13
Fair Value Price
$397.62
Market Cap
$30.60B
52 Week Low
$128.25
52 Week High
$219.72
P/E
36.47x
P/B
1.62x
P/S
3.18x
PEG
0.73x
Dividend Yield
N/A
Revenue
$10.03B
Earnings
$834.60M
Gross Margin
74%
Operating Margin
10.09%
Profit Margin
8.3%
Debt to Equity
0.7
Operating Cash Flow
$3B
Beta
0.72
Next Earnings
N/A
Ex-Dividend
N/A
Next Dividend
N/A

BIIB Overview

Biogen Inc. is a leading biotechnology firm dedicated to the discovery, development, production, and distribution of treatments for complex neurological and neurodegenerative conditions. Its established portfolio includes a range of medications addressing multiple sclerosis (MS), such as TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA. For spinal muscular atrophy (SMA), Biogen provides SPINRAZA, while FUMADERM is available for the treatment of plaque psoriasis. Among its other key offerings is ADUHELM, specifically developed for Alzheimer's disease. The company also markets a selection of biosimilar drugs, including BENEPALI (an etanercept biosimilar akin to ENBREL), IMRALDI (an adalimumab biosimilar comparable to HUMIRA), and FLIXABI (an infliximab biosimilar referencing REMICADE). Further extending its therapeutic reach, Biogen supplies RITUXAN, prescribed for conditions like non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, certain types of ANCA-associated vasculitis, and pemphigus vulgaris. RITUXAN HYCELA targets non-Hodgkin's lymphoma and CLL, and GAZYVA is utilized for CLL and follicular lymphoma. OCREVUS addresses both relapsing and primary progressive forms of MS, complementing the company's broader efforts in anti-CD20 therapies. The company maintains a robust research and development pipeline, featuring numerous investigational therapies. These candidates are designed to tackle a wide spectrum of conditions, including multiple sclerosis and neuroimmunological disorders (e.g., BIIB135, BIIB061, BIIB091, BIIB107), Alzheimer's disease and other forms of dementia (e.g., Aducanumab, Lecanemab, BIIB076, BIIB080), neuromuscular disorders (e.g., BIIB067, BIIB078, BIIB105, BIIB100, BIIB110), Parkinson's disease and related movement disorders (e.g., BIIB124, BIIB094, BIIB118, BIIB101, BIIB122), neuropsychiatric conditions (e.g., BIIB125, BIIB104), immunology-related illnesses (e.g., Dapirolizumab pegol, BIIB059), acute neurological events (e.g., BIIB093, BIIB131), and neuropathic pain (e.g., BIIB074). Additionally, several biosimilar candidates, such as BYOOVIZ, BIIB800, and SB15, are progressing through various developmental stages. Biogen actively engages in strategic collaborations and licensing arrangements with various partners, including Acorda Therapeutics, Inc., Alkermes Pharma Ireland Limited, Denali Therapeutics Inc., Eisai Co., Ltd., Genentech, Inc., Neurimmune SubOne AG, Ionis Pharmaceuticals, Inc., Samsung Bioepis Co., Ltd., Sangamo Therapeutics, Inc., and Sage Therapeutics, Inc. Established in 1978, Biogen Inc. maintains its corporate headquarters in Cambridge, Massachusetts.

Zen Rating

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Industry: General Drug Manufacturer

Industry Rating
A
BIIB
Ranked
#10 of 16

Top Ranked Stocks in Industry

Name / TickerPriceZen Rating
$64.84A
$1,231.94B
$247.97B
View Top General Drug Manufacturer Stocks

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BIIB News

Overview

Due Diligence Score

Industry Average (34)
You've viewed Due Diligence Score for 10/10 free stocks. Upgrade to Premium to see how BIIB scored across 33 valuation, financial, forecast, performance, and dividend due diligence checks.

Due Diligence Checks

BIIB ($207.13) is undervalued by 47.91% relative to our estimate of its Fair Value price of $397.62 based on Discounted Cash Flow (DCF) modelling, but does not have a significant margin of safety
Below Fair Value Valuation
BIIB ($207.13) is significantly undervalued by 47.91% relative to our estimate of its Fair Value price of $397.62 based on Discounted Cash Flow (DCF) modelling, which includes a healthy margin of safety
Significantly Below Fair Value Valuation
BIIB ($207.13) is trading above... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation
There are 30 more BIIB due diligence checks available for Premium users.

Valuation

BIIB fair value

Fair Value of BIIB stock based on Discounted Cash Flow (DCF)

Price
$207.13
Fair Value
$397.62
Undervalued by
47.91%
BIIB ($207.13) is undervalued by... subscribe to Premium to read more.
Below Fair Value Valuation
BIIB ($207.13) is significantly undervalued... subscribe to Premium to read more.
Significantly Below Fair Value Valuation
BIIB ($207.13) is trading above... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation

BIIB price to earnings (PE)

For valuing profitable companies with steady earnings

Company
36.47x
Industry
38.2x
Market
11.77x
BIIB is good value based... subscribe to Premium to read more.
P/E vs Industry Valuation
BIIB is poor value based... subscribe to Premium to read more.
P/E vs Market Valuation

BIIB price to book (PB)

For valuing companies that are loss-making or have lots of physical asset

Company
1.62x
Industry
7.96x
BIIB is good value based... subscribe to Premium to read more.
P/B vs Industry Valuation

BIIB price to earnings growth (PEG)

For valuing profitable companies with growth potential

BIIB is good value based... subscribe to Premium to read more.
PEG Value Valuation

BIIB's financial health

Profit margin

Revenue
$2.7B
Net Income
$97.5M
Profit Margin
3.6%
BIIB's Earnings (EBIT) of $1.01B... subscribe to Premium to read more.
Interest Coverage Financials
BIIB's profit margin has decreased... subscribe to Premium to read more.
Profit Margin Growth Financials

Assets to liabilities

Assets
$32.1B
Liabilities
$13.2B
Debt to equity
0.7
BIIB's short-term assets ($7.31B) exceed... subscribe to Premium to read more.
Short-term Liabilities Financials
BIIB's long-term liabilities ($9.32B) exceed... subscribe to Premium to read more.
Long-term Liabilities Financials
BIIB's debt relative to shareholder... subscribe to Premium to read more.
Shrinking Debt Financials
BIIB's debt to equity ratio... subscribe to Premium to read more.
Healthy Debt to Equity Financials

Cash flow

Operating
$448.9M
Investing
-$3.8B
Financing
$1.3B
BIIB's operating cash flow ($2.88B)... subscribe to Premium to read more.
Debt Coverage Financials

BIIB vs General Drug Manufacturer Stocks

TickerZen RatingMarket Cap1d %P/EP/B
BIIBC$30.60B-0.39%36.47x1.62x
GRFSC$5.53B+1.39%11.73x0.90x
OGN$3.58B+0.15%17.24x3.56x
AMRNC$298.04M-1.74%-10.08x0.67x
SCLXD$56.81M-3.74%-0.17x-0.22x

Biogen Stock FAQ

What is Biogen's quote symbol?

(NASDAQ: BIIB) Biogen trades on the NASDAQ under the ticker symbol BIIB. Biogen stock quotes can also be displayed as NASDAQ: BIIB.

If you're new to stock investing, here's how to buy Biogen stock.

What is the 52 week high and low for Biogen (NASDAQ: BIIB)?

(NASDAQ: BIIB) Biogen's 52-week high was $219.72, and its 52-week low was $128.25. It is currently -5.73% from its 52-week high and 61.5% from its 52-week low.

How much is Biogen stock worth today?

(NASDAQ: BIIB) Biogen currently has 147,753,998 outstanding shares. With Biogen stock trading at $207.13 per share, the total value of Biogen stock (market capitalization) is $30.60B.

Biogen stock was originally listed at a price of $5.73 in Dec 31, 1997. If you had invested in Biogen stock at $5.73, your return over the last 28 years would have been 3,514.83%, for an annualized return of 13.67% (not including any dividends or dividend reinvestments).

How much is Biogen's stock price per share?

(NASDAQ: BIIB) Biogen stock price per share is $207.13 today (as of Aug 10, 2026).

What is Biogen's Market Cap?

(NASDAQ: BIIB) Biogen's market cap is $30.60B, as of Aug 11, 2026.

Market cap (market capitalization) is the total market value of a publicly traded company's outstanding shares.

Biogen's market cap is calculated by multiplying BIIB's current stock price of $207.13 by BIIB's total outstanding shares of 147,753,998.
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