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
29.13B
Market cap29.13B
Price-Earnings ratio
20.60
Price-Earnings ratio20.60
Dividend yield
Dividend yield
Average volume
1.67M
Average volume1.67M
High today
$198.58
High today$198.58
Low today
$186.03
Low today$186.03
Open price
$191.21
Open price$191.21
Volume
2.07M
Volume2.07M
52 Week high
$219.72
52 Week high$219.72
52 Week low
$121.05
52 Week low$121.05

Stock Snapshot

With a market cap of 29.13B, Biogen(BIIB) trades at $197.24. The stock has a price-to-earnings ratio of 20.60.

On 2026-07-15, Biogen(BIIB) stock traded between a low of $186.03 and a high of $198.58. Shares are currently priced at $197.24, which is +6.0% above the low and -0.7% below the high.

Biogen(BIIB) shares are trading with a volume of 2.07M, against a daily average of 1.67M.

In the last year, Biogen(BIIB) shares hit a 52-week high of $219.72 and a 52-week low of $121.05.

In the last year, Biogen(BIIB) shares hit a 52-week high of $219.72 and a 52-week low of $121.05.

BIIB News

Nasdaq 9h
Biogen Shares Decline After Detailed Diranersen Alzheimer's Study Data

Shares of Biogen BIIB were down 8.2% yesterday after the company presented data from the phase II CELIA study evaluating its experimental tau-targeting Alzheime...

Biogen Shares Decline After Detailed Diranersen Alzheimer's Study Data
TipRanks 11h
Biogen appoints Michael Parini as chief legal officer

Biogen (BIIB) announced the appointment of Michael Parini as chief legal officer, effective August 3. Parini will serve as a member of Biogen’s executive commit...

Simply Wall St 14h
Biogen Is Down 6.7% After At-Home LEQEMBI Launch And New Alzheimer’s Data - Has The Bull Case Changed?

Eisai and Biogen recently reported that in the real-world three-year LEADER study, around 83% of early Alzheimer’s patients stayed stable or improved on LEQEMBI...

Biogen Is Down 6.7% After At-Home LEQEMBI Launch And New Alzheimer’s Data - Has The Bull Case Changed?

Analyst ratings

61%

of 38 ratings
Buy
60.5%
Hold
34.2%
Sell
5.3%

More BIIB News

Nasdaq 1d
Eisai, Biogen Report Study Showing Long-Term Benefits Of LEQEMBI In Early Alzheimer's Disease

(RTTNews) - Eisai Co Ltd (ESALY.PK) and Biogen Inc. (BIIB) announced on Tuesday new real-world data showing that 82.5 percent of patients with early Alzheimer's...

Eisai, Biogen Report Study Showing Long-Term Benefits Of LEQEMBI In Early Alzheimer's Disease
TipRanks 1d
Biogen: CELIA Trial Data Reinforce Tau Leadership, Support Buy Rating and Unchanged $237 Price Target

Andrew Fein, an analyst from H.C. Wainwright, maintained the Buy rating on Biogen. The associated price target remains the same with $237.00. TipRanks has ente...

Nasdaq 1d
Biogen Wins FDA Approval for Subcutaneous Starter Dose of Leqembi

Shares of Biogen BIIB rose nearly 5% yesterday after the company announced that the FDA approved a subcutaneous (SC) autoinjector version of Leqembi as an initi...

Biogen Wins FDA Approval for Subcutaneous Starter Dose of Leqembi
The Wall Street Journal 1d
Biogen Stock Sinks on Lackluster Alzheimer’s Results

Biogen stock was down more than 8% Tuesday—on pace for its largest drop since 2020—after the company's experimental Alzheimer's drug failed to perform better on...

Biogen Stock Sinks on Lackluster Alzheimer’s Results
TipRanks 1d
RBC says Biogen detailed Phase 2 results ‘leave more questions than answers’

After Biogen (BIIB) provided more detailed data from the Phase 2 CELIA study of diranersen in early Alzheimer’s disease during this morning at AAIC session, RBC...

Benzinga 1d
Why Is Biogen Stock Falling Tuesday?

Following the announcement, the stock fell nearly 9%. According to Bloomberg, RBC Capital Markets analyst Brian Abrahams said the findings “leave more questions...

Why Is Biogen Stock Falling Tuesday?
TipRanks 1d
Eisai, Biogen announce presentation of results from real-world LEADER study

Eisai (ESAIY) and Biogen (BIIB) announced that results from the real-world Lecanemab in Early Alzheimer’s Disease Study show that nearly 83% of early Alzheimer’...

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