Biogen

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About BIIB

Biogen, Inc. is a biopharmaceutical company, which engages in discovering, developing, and delivering therapies for neurological and neurodegenerative diseases. Its products include TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for the treatment of MS, SPINRAZA for the treatment of SMA, ADUHELM for the treatment of Alzheimer's disease, and FUMADERM for the treatment of severe plaque psoriasis.

CEO

Christopher A. Viehbacher

CEOChristopher A. Viehbacher

Employees

7,500

Employees7,500

Headquarters

Cambridge, Massachusetts

HeadquartersCambridge, Massachusetts

Founded

1978

Founded1978

Employees

7,500

Employees7,500

BIIB Key Statistics

Market cap

28.58B

Market cap28.58B

Price-Earnings ratio

20.79

Price-Earnings ratio20.79

Dividend yield

—

Dividend yield—

Average volume

1.36M

Average volume1.36M

High today

$195.50

High today$195.50

Low today

$192.27

Low today$192.27

Open price

$194.39

Open price$194.39

Volume

363.88K

Volume363.88K

52 Week high

$205.97

52 Week high$205.97

52 Week low

$121.05

52 Week low$121.05

Stock Snapshot

The current Biogen(BIIB) stock price is $193.55, with a market capitalization of 28.58B. The stock trades at a price-to-earnings (P/E) ratio of 20.79.

During the trading session on 2026-05-26, Biogen(BIIB) shares reached a daily high of $195.50 and a low of $192.27. At a current price of $193.55, the stock is +0.7% higher than the low and still -1.0% under the high.

Trading volume for Biogen(BIIB) stock has reached 363.88K, versus its average volume of 1.36M.

The stock's 52-week range extends from a low of $121.05 to a high of $205.97.

BIIB News

Simply Wall St 2d

Ionis Pharmaceuticals Valuation Check After Biogen Releases Phase 2 CELIA Alzheimer’s Study Results - simplywall.st

...

TipRanks 4d

Denali, Biogen Halt Parkinson’s Trial After Efficacy Failure

Unlock hedge fund-level data and powerful investing tools for smarter, sharper decisions Discover top-performing stock ideas and upgrade to a portfolio of mark...

TipRanks 5d

Biogen and Denali’s Parkinson’s candidate did not meet Phase 2b endpoints

Biogen (BIIB) and Denali Therapeutics (DNLI) announced topline results from the Phase 2b LUMA study evaluating BIIB122, an investigational small molecule inhibi...

Analyst ratings

55%

of 38 ratings

Buy

55.3%

Hold

39.5%

Sell

5.3%

More BIIB News

Simply Wall St 6d

How Biogen’s Diranersen Alzheimer’s Bet Will Impact Biogen Investors

Earlier in May 2026, Biogen reported topline Phase 2 CELIA data for diranersen in early Alzheimer’s disease, showing robust tau reductions and signals of slowed...

Simply Wall St 6d

Ionis Rises As Diranersen Phase 2 Spurs Biogen Registrational Plans

Biogen and Ionis reported topline Phase 2 CELIA data for diranersen in early Alzheimer's disease, showing robust biomarker and cognitive effects. The antisense...

TipRanks 7d

Biogen Earnings Call Signals Confident, Investment-Heavy Transition

Biogen Inc. ((BIIB)) has held its Q1 earnings call. Read on for the main highlights of the call. Claim 55% Off TipRanks Unlock hedge fund-level data and powerfu...

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