Biogen is an established biopharmaceutical company focused on treatments for neurodegenerative and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 40% of total revenue in 2025. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (19% of total in 2025), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).
The current price of BIIB is $209.82 USD — it has decreased by -0% in the past 24 hours. Watch Biogen stock price performance more closely on the chart.
What is Biogen stock ticker?▼
Depending on the exchange, the stock ticker may vary. For instance, on XNAS exchange Biogen stocks are traded under the ticker BIIB.
Is Biogen stock price growing?▼
BIIB stock has risen by +1.13% compared to the previous week, the month change is a +1.69% rise, over the last year Biogen has showed a +51.14% increase.
What is Biogen market cap?▼
Today Biogen has the market capitalization of 31B
When is the next Biogen earnings date?▼
Biogen is going to release the next earnings report on October 29, 2026.
What were Biogen earnings last quarter?▼
BIIB earnings for the last quarter are 3.6 USD per share, whereas the estimation was 2.94 USD resulting in a +22.49% surprise. The estimated earnings for the next quarter are N/A USD per share.
What is Biogen revenue for the last year?▼
Biogen revenue for the last year amounts to 9.89B USD.
What is Biogen net income for the last year?▼
BIIB net income for the last year is 1.29B USD.
How many employees does Biogen have?▼
As of August 17, 2026, the company has 7,500 employees.
In which sector is Biogen located?▼
Biogen operates in the Health & Wellness sector.
When did Biogen complete a stock split?▼
The last stock split for Biogen was on January 18, 2001 with a ratio of 3:1.
Where is Biogen headquartered?▼
Biogen is headquartered in CAMBRIDGE, United States.