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Also trades as: 0R1B.L (LSE) · $vol 0M · IDP.DE (XETRA) · $vol 0M · BIIB.SW (SIX)

BIIB NASDAQ

Biogen Inc.
1W: +8.0% 1M: +10.8% 3M: +22.7% YTD: +41.9% 1Y: +68.1% 3Y: -2.0% 5Y: -6.5%
$252.73
+0.47 (+0.19%)
After Hours: $252.04 (-0.69, -0.27%)
Weekly Expected Move ±4.4%
$229 $240 $251 $262 $273
NASDAQ · Healthcare · Drug Manufacturers - General · Tech Score Strong Buy · Power 71 · $37.3B mcap · 147M float · 0.789% daily turnover · Short 70% of daily vol
Credit Risk of going bust: lower than 68% of companies Debt: 18.3% of company value Bonds: $137.0M held by 192 funds, 91 bp over Treasuries → details ▾
Of US companies ranked in the safest four tenths, about 1 in 3,500 filed for bankruptcy within a year (2020-2025).
If the stock fell to about $4.22 (down 98%), Biogen Inc. would be worth roughly what it owes.
Total debt $8.36B against a stock market value of $37.27B.
Distance to default 7.34 (Merton model): prices to 2026-10-26, balance sheet 2026-06-30, debt counted $4.45B (short-term plus half of long-term), stock volatility 33.9%; Altman Z 3.16. A ranking and a back-test, not a forecast.
Bond figures are fund-reported marks (SEC N-PORT) as of Jul 2026. How these are computed.
Smart Money Score
Bullish 75
Insider—
Congress12 trades
ETF Holdings—
Key Statistics
Market Cap$37.3B
52W Range138-254.41
Volume958,816
Avg Volume1,156,488
Beta0.17
Dividend—
Analyst Ratings
32 Buy 16 Hold 1 Sell
Consensus Buy
Company Info
CEOChristopher A. Viehbacher
Employees7,500
SectorHealthcare
IndustryDrug Manufacturers - General
IPO Date1991-09-17
Websitebiogen.com
225 Binney Street
Cambridge, MA 02142
US
617 679 2000
About 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. 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.

Recent Insider Trades

NameTypeSharesPriceDate
Godbout Sean M-Exempt 27 — 2026-10-02
Godbout Sean F-InKind 8 $219.88 2026-10-02
Godbout Sean M-Exempt 27 — 2026-10-02
Godbout Sean A-Award 985 — 2026-10-01
Parini Michael A-Award 7,405 — 2026-09-01

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