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ALL
Market cap
$25.54B
EPS
10.96
P/E ratio
15.8
Price to sales
2.54
Dividend yield
--
Beta
0.127989
Previous close
$172.50
Today's open
$173.49
Day's range
$171.27 - $175.08
52 week range
$110.04 - $185.17
show more
CEO
Christopher A. Viehbacher
Employees
7605
Headquarters
Cambridge, MA
Exchange
Nasdaq Global Select
Shares outstanding
146702272
Issue type
Common Stock
Healthcare
Pharmaceuticals
Biogen Receives Health Canada Authorization for ZURZUVAE™ (zuranolone), the First and Only Treatment Indicated for Adults with Postpartum Depression in Canada
TORONTO--(BUSINESS WIRE)--Biogen Canada Inc. today announced that Health Canada has issued a Notice of Compliance (NOC) for ZURZUVAE™ (zuranolone) for the treatment of moderate or severe postpartum depression (PPD) in adults following childbirth. ZURZUVAE is a once-daily, 14-day oral single course treatment for women with PPD. This first-of-its-kind treatment offers relief from depressive symptoms, with benefits seen in clinical studies as early as day 3, significant reduction of symptoms by th.
Business Wire • Dec 9, 2025

“LEQEMBI®” (lecanemab) for the Treatment of Early Alzheimer's Disease Included in China's Commercial Insurance Innovative Drug List
TOKYO and CAMBRIDGE, Mass., Dec. 08, 2025 (GLOBE NEWSWIRE) -- Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, “Biogen”) announced today that anti-Aβ protofibril* antibody “LEQEMBI®” (brand name in China: “乐意保®”, generic name: lecanemab), has been included in the “Commercial Insurance Innovative Drug List” (Chinese: 商业健康保险创新药品目录), recently introduced by the National Healthcare Security Administration (NHSA) of China. The inclusion of LEQEMBI in this list marks a meaningful step toward expanding access to early Alzheimer's Disease (AD) treatment in China.
GlobeNewsWire • Dec 8, 2025

Biogen and Stoke Therapeutics Present Data that Further Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 2025 American Epilepsy Society (AES) Annual Meeting
—Long-term Phase 1/2a and open label extension (OLE) data for zorevunersen on top of standard of care anti-seizure medicines (ASMs) demonstrate durable seizure reductions, including increases in seizure-free days, in addition to improvements in cognition, behavior and quality of life—
GlobeNewsWire • Dec 5, 2025

Stoke Therapeutics and Biogen Present Data that Further Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 2025 American Epilepsy Society (AES) Annual Meeting
BEDFORD, Mass. & CAMBRIDGE, Mass.--(BUSINESS WIRE)--Stoke Therapeutics, Inc. (Nasdaq: STOK), a biotechnology company dedicated to restoring protein expression by harnessing the body's potential with RNA medicine, and Biogen Inc. (Nasdaq: BIIB) today announced data presentations that further support the potential of zorevunersen, an investigational antisense oligonucleotide, as a disease-modifying medicine for Dravet syndrome. These data were presented at the 2025 American Epilepsy Society (AES).
Business Wire • Dec 5, 2025

Biogen Inc. (BIIB) Presents at Piper Sandler 37th Annual Healthcare Conference Transcript
Biogen Inc. (BIIB) Presents at Piper Sandler 37th Annual Healthcare Conference Transcript
Seeking Alpha • Dec 3, 2025

Biogen Inc. (BIIB) Presents at Evercore 8th Annual Healthcare Conference Transcript
Biogen Inc. (BIIB) Presents at Evercore 8th Annual Healthcare Conference Transcript
Seeking Alpha • Dec 2, 2025

New Data Presented at the Clinical Trials on Alzheimer's Disease (CTAD) Conference 2025 Confirms Pharmacological Effect of LEQEMBI® (lecanemab-irmb) on Neurotoxic Aβ Protofibrils in CSF
TOKYO and CAMBRIDGE, Mass., Dec. 02, 2025 (GLOBE NEWSWIRE) -- Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, “Biogen”) announced today that the latest data confirming the pharmacological effect of lecanemab (generic name, U.S. brand name: LEQEMBI®), an anti-Aβ protofibril* antibody, on Aβ protofibrils (PF) in cerebrospinal fluid (CSF) was presented at the 18th Clinical Trials on Alzheimer's Disease (CTAD) Conference. The findings represent the results from a large-scale clinical study demonstrating, for the first time, that binding of lecanemab to PF can be measured in CSF, enabling further understanding of how lecanemab slows Alzheimer's disease (AD) progression.
GlobeNewsWire • Dec 2, 2025

Biogen and Stoke Therapeutics Announce Presentations at the 2025 American Epilepsy Society Annual Meeting
New analyses from the ongoing open label extension (OLE) studies and findings from electroencephalogram (EEG) assessments in patients with Dravet syndrome treated with zorevunersen support the potential for disease modification New analyses from the ongoing open label extension (OLE) studies and findings from electroencephalogram (EEG) assessments in patients with Dravet syndrome treated with zorevunersen support the potential for disease modification
GlobeNewsWire • Dec 1, 2025

Stoke Therapeutics and Biogen Announce Presentations at the 2025 American Epilepsy Society Annual Meeting
BEDFORD, Mass. & CAMBRIDGE, Mass.--(BUSINESS WIRE)--Stoke Therapeutics, Inc. (Nasdaq: STOK), a biotechnology company dedicated to restoring protein expression by harnessing the body's potential with RNA medicine, and Biogen Inc. (Nasdaq: BIIB) today announced data presentations from studies of zorevunersen at the 2025 American Epilepsy Society (AES) Annual Meeting, taking place December 5-9 in Atlanta, Georgia. Zorevunersen is an investigational antisense oligonucleotide currently being evaluat.
Business Wire • Dec 1, 2025

Biogen shares could climb on Leqembi uptake – Jefferies
Biogen Inc (NASDAQ:BIIB, XETRA:IDP) could see its stock move higher over the next two years as progress on its Alzheimer's drug Leqembi and a series of late-stage pipeline readouts draw more investor attention, according to Jefferies. The broker, which rates the stock Buy with a price target of $210, said Leqembi's trajectory in early Alzheimer's disease “could accelerate” if a subcutaneous induction version wins approval in mid-2026, enabling full at-home use.
Proactive Investors • Nov 28, 2025

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