Biogen Idec (BIIB)

183.33
-4.24 (-2.26%)
NASDAQ · Last Trade: Mar 31st, 7:30 PM EDT
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Detailed Quote

Previous Close187.57
Open179.46
Bid179.90
Ask183.20
Day's Range171.37 - 184.68
52 Week Range110.04 - 202.41
Volume2,719,881
Market Cap26.91B
PE Ratio (TTM)20.86
EPS (TTM)8.8
Dividend & YieldN/A (N/A)
1 Month Average Volume913,888

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About Biogen Idec (BIIB)

Biogen is a global biotechnology company dedicated to discovering, developing, and delivering innovative therapies for neurological and neurodegenerative diseases. The company focuses on addressing serious conditions such as multiple sclerosis, Alzheimer's disease, and spinal muscular atrophy, among others. Through advanced research and development, Biogen aims to create breakthrough treatments that improve the lives of patients and their families, and it leverages its expertise in biologics and immunology to bring novel solutions to market. Additionally, Biogen is committed to advancing science and fostering collaboration within the medical and scientific communities to further enhance patient care. Read More

News & Press Releases

Biogen's $5.6 Billion Acquisition of Apellis: A Strategic Pivot into Rare Kidney Diseases
In a move that signals a decisive shift away from its traditional focus on neuroscience, Biogen (NASDAQ: BIIB) announced today, March 31, 2026, that it has entered into a definitive agreement to acquire Apellis Pharmaceuticals (NASDAQ: APLS) for approximately $5.6 billion in cash. The deal, valued at $41 per
Via MarketMinute · March 31, 2026
Top S&P500 movers in Tuesday's sessionchartmill.com
Via Chartmill · March 31, 2026
Spotlight Movers: APLS, VTIX, ELAB, ARTL Fuel Multi-Sector Momentum
A new wave of market-moving developments across biotech, defense technology, and emerging growth companies is putting Apellis Pharmaceuticals, Inc. (NASDAQ: APLS), Virtuix Holdings, Inc. (NASDAQ: VTIX) , PMGC Holdings Inc. (NASDAQ: ELAB) , and Artelo Biosciences, Inc. (NASDAQ: ARTL) firmly on investor watchlists. Biotech M&A activity, defense-driven VR adoption, strategic capital deployment, and fresh funding catalysts are all contributing to rising investor interest across multiple high-growth sectors.
Via AB Newswire · March 31, 2026
Gapping S&P500 stocks in Tuesday's sessionchartmill.com
Via Chartmill · March 31, 2026
Biogen Stock To Pop Again? China Fast-Tracks At-Home Alzheimer’s Drug Leqembistocktwits.com
Via Stocktwits · February 8, 2026
Which S&P500 stocks are moving on Tuesday?chartmill.com
Via Chartmill · March 31, 2026
The $1 Trillion Goliath: Why Eli Lilly’s $6.3B Centessa Bet Defines the Future of Neuroscience
Date: March 31, 2026 Introduction In the spring of 2026, the global pharmaceutical landscape is increasingly defined by the gravitational pull of a single entity: Eli Lilly and Company (NYSE: LLY). Once a steady mid-tier giant known for insulin and antidepressants, Lilly has transformed into the world’s first trillion-dollar healthcare titan. Today’s announcement—a definitive $6.3 [...]
Via Finterra · March 31, 2026
What's going on in today's pre-market session: S&P500 moverschartmill.com
Via Chartmill · March 31, 2026
Biogen to Acquire Apellis, Enhancing the Company’s Growth Portfolio in Immunology and Rare Disease, Bolstering Growth Outlook and Accelerating Expansion into Nephrology
CAMBRIDGE, Mass. and WALTHAM, Mass., March 31, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) and Apellis Pharmaceuticals, Inc. (Nasdaq: APLS) today announced the companies have entered into a definitive agreement under which Biogen has agreed to acquire all outstanding shares of Apellis for $41.00 per share in cash at closing, or approximately $5.6 billion. Apellis stockholders will also receive a nontransferable CVR for each Apellis share held, entitling the holder to receive two payments of $2 per share each, contingent on certain annual global net sales thresholds being met for SYFOVRE®.
By Apellis Pharmaceuticals, Inc. · Via GlobeNewswire · March 31, 2026
FDA Approves New High Dose Regimen of SPINRAZA® (nusinersen) for Spinal Muscular Atrophy
CAMBRIDGE, Mass., March 30, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) today announced that the High Dose Regimen of SPINRAZA® (nusinersen), which is comprised of 50 mg/5 mL and 28 mg/5 mL doses, was approved by the U.S. Food and Drug Administration (FDA) for the treatment of spinal muscular atrophy (SMA). Backed by more than 10 years of clinical data supporting the Low Dose Regimen of SPINRAZA (12 mg), High Dose SPINRAZA was designed to deliver a higher concentration of drug through both the loading and maintenance dosing phases, to provide a new option in response to the ongoing needs of the community.
By Biogen Inc. · Via GlobeNewswire · March 30, 2026
Biogen Announces Second Positive Phase 2 Litifilimab Trial in Cutaneous Lupus Erythematosus at 2026 American Academy of Dermatology Annual Meeting, Showing a Significant Reduction in Skin Disease Activity
CAMBRIDGE, Mass., March 28, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) announced positive results from the Phase 2 part of the AMETHYST Phase 2/3 study (Part A) of litifilimab in people living with cutaneous lupus erythematosus (CLE). Litifilimab is the first humanized IgG1 monoclonal antibody (mAb) targeting blood dendritic cell antigen 2 (BDCA2), which has the potential to become the first innovative therapy approved for CLE in 70 years. Part A of AMETHYST evaluated the efficacy and safety of litifilimab through week 24, with reductions in skin disease activity reported across several measures. Results are consistent with the earlier positive Phase 2 LILAC study reported in The New England Journal of Medicine. Phase 2 results from LILAC and AMETHYST supported litifilimab’s recently granted U.S. Food and Drug Administration (FDA) Breakthrough Therapy Designation. Results are being presented today at the American Academy of Dermatology (AAD) Annual Meeting.
By Biogen Inc. · Via GlobeNewswire · March 28, 2026
The Brain Barrier Broken: Inside Denali Therapeutics’ Landmark FDA Approval of AVLAYAH
On March 25, 2026, the landscape of neurodegenerative medicine underwent a seismic shift. The U.S. Food and Drug Administration (FDA) granted accelerated approval to Denali Therapeutics (NASDAQ: DNLI) for its lead asset, AVLAYAH™ (tividenofusp alfa-eknm). This represents more than just a new treatment for Hunter Syndrome; it marks the first time in medical history that [...]
Via Finterra · March 26, 2026
Biogen to Present New Late-Breaking Litifilimab Phase 2 AMETHYST Data in Cutaneous Lupus Erythematosus at 2026 American Academy of Dermatology Annual Meeting
CAMBRIDGE, Mass., March 19, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) today announced upcoming scientific presentations at the 2026 American Academy of Dermatology (AAD) Annual Meeting, taking place March 27-31. Late-breaking data from Part A (Phase 2) of the AMETHYST Phase 2/3 study will be presented that highlight litifilimab’s effect on cutaneous lupus erythematosus (CLE) disease activity. Litifilimab is a potential first in-class, monoclonal antibody (mAb) targeting blood dendritic cell antigen 2 (BDCA2) and was the first investigational therapy to show positive results in CLE, as shown in the Phase 2 LILAC study. Additional presentations at AAD will provide new insights into measures used to assess the severity of CLE disease activity in both clinical trials and clinical practice.
By Biogen Inc. · Via GlobeNewswire · March 19, 2026
Cancer Drug Maker With $172 Million Revenue and Multiple Approved Therapies Draws $6.5 Million Investmentfool.com
This clinical-stage biotech develops oncology therapeutics and partners with leading institutions in cancer and immunology research.
Via The Motley Fool · March 13, 2026
Biotech Stock Up 365% as This $8 Million Investment Targets a Drug With 3 NDA Filings Plannedfool.com
This biotech specializes in precision therapies for rare genetic diseases, with a pipeline targeting oncology and hematology indications.
Via The Motley Fool · March 13, 2026
Biogen Presents Additional Salanersen Data Showing New Motor Milestones Achieved in Children with SMA Previously Treated with Gene Therapy
CAMBRIDGE, Mass., March 11, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) presented additional results from the Phase 1b study of salanersen, an investigational novel antisense oligonucleotide (ASO) given once a year for spinal muscular atrophy (SMA), at the 2026 Muscular Dystrophy Association (MDA) Clinical & Scientific Conference. The study evaluated salanersen in children who had suboptimal clinical status despite prior administration of gene therapy (onasemnogene abeparvovec-xioi). Salanersen was generally well-tolerated. Participants experienced a slowing of neurodegeneration and functional improvement, including achievement of new World Health Organization (WHO) motor milestones, following initiation of salanersen. These new results include a minimum of one year of follow-up for all participants, building on the interim study data presented at Cure SMA 2025. The company also presented the study designs of the Phase 3 salanersen clinical trials.
By Biogen Inc. · Via GlobeNewswire · March 11, 2026
The Potassium Channel Breakthrough: A Deep-Dive on Xenon Pharmaceuticals (XENE)
As of March 10, 2026, the biopharmaceutical sector is witnessing a historic realignment in the neurology space, spearheaded by the Canadian-born clinical powerhouse Xenon Pharmaceuticals Inc. (Nasdaq: XENE). Long a favorite of biotech specialists for its deep expertise in ion-channel biology, Xenon has officially transitioned from a "high-potential" R&D firm to a "pre-commercial" titan following [...]
Via Finterra · March 10, 2026
Winners And Losers Of Q4: Biogen (NASDAQ:BIIB) Vs The Rest Of The Therapeutics Stocks
Let’s dig into the relative performance of Biogen (NASDAQ:BIIB) and its peers as we unravel the now-completed Q4 therapeutics earnings season. Over the next ...
Via StockStory · March 9, 2026
Biogen to Share New SMA Data at Muscular Dystrophy Association and SMA Europe Conferences
CAMBRIDGE, Mass., March 05, 2026 (GLOBE NEWSWIRE) -- Biogen Inc. (Nasdaq: BIIB) – will present new data and updates from its spinal muscle atrophy (SMA) research programs, including high dose nusinersen and salanersen, at the 2026 Muscular Dystrophy Association (MDA) Clinical & Scientific Conference (March 8-11, 2026) and 5th International Scientific Congress on SMA (SMA Europe 2026; March 11-14, 2026).
By Biogen Inc. · Via GlobeNewswire · March 5, 2026
The New England Journal of Medicine Publishes First Data to Demonstrate the Potential for Disease Modification in Dravet Syndrome
–Results show that targeting the underlying cause of Dravet syndrome with zorevunersen may improve outcomes for people with this rare, devastating genetic neurodevelopmental disease–
By Biogen Inc. · Via GlobeNewswire · March 4, 2026
3 Value Stocks Walking a Fine Line
The low valuation multiples for value stocks provide a margin of safety that growth stocks rarely offer. However, the challenge lies in determining whether these cheap assets are genuinely undervalued or simply on sale due to their potentially deteriorating business models.
Via StockStory · February 18, 2026
The 5 Most Interesting Analyst Questions From Biogen’s Q4 Earnings Call
Biogen’s fourth-quarter results were received positively by the market, as the company exceeded Wall Street’s revenue and non-GAAP profit expectations despite a year-over-year decline in sales. Management attributed performance to robust growth in its newer product portfolio, particularly Lekembi, Skyclaris, Xerxuve, and Calcadi, which collectively surpassed $1 billion in annual revenue. CEO Christopher Viehbacher pointed to successful expansion of VUMERITY within the multiple sclerosis segment and highlighted that, "Biogen is functioning and firing on all cylinders, and doing very well," as the company pivots its commercial focus toward growth products and away from legacy assets.
Via StockStory · February 13, 2026
1 Unpopular Stock That Deserves a Second Chance and 2 We Find Risky
When Wall Street turns bearish on a stock, it’s worth paying attention. These calls stand out because analysts rarely issue grim ratings on companies for fear their firms will lose out in other business lines such as M&A advisory.
Via StockStory · February 12, 2026
Biogen Announces Board Chair Transition
Caroline Dorsa to retire from the Biogen Board of Directors; Dr. Maria C. Freire, Director since 2021, elected as new Chair
By Biogen Inc. · Via GlobeNewswire · February 11, 2026
BIIB Q4 Deep Dive: Pipeline Advances and New Product Launches Offset Legacy Headwinds
Biotech company Biogen (NASDAQ:BIIB) reported Q4 CY2025 results beating Wall Street’s revenue expectations, but sales fell by 7.1% year on year to $2.28 billion. Its non-GAAP profit of $1.99 per share was 22.1% above analysts’ consensus estimates.
Via StockStory · February 7, 2026