Biogen BIIB Market capitalization
Market capitalization at other companies
Other financials
Where this comes from
Computed from the period-end share price: $26.91B.
The official record: Biogen’s 10-Q, filed April 29, 2026, on SEC EDGAR. View the filing →
Ask your AI about Biogen's market capitalization.
Connect your AI assistant and compare it to peers, right in your chat.
Connect your AI
Claude
Questions, answered.
- What is Biogen's market capitalization?
- Biogen (BIIB) reported market capitalization of $26.91B in Q1 2026.
- How has Biogen's market capitalization changed year-over-year?
- Biogen's market capitalization increased by 34.3% year-over-year, from $20.03B to $26.91B.
- What is the long-term trend for Biogen's market capitalization?
- Over 4 years (2021 to 2025), Biogen's market capitalization has grown at a -15.8% compound annual growth rate (CAGR), from $168.77B to $84.89B.
- What does market capitalization mean?
- What the stock market says the company's equity is worth.
- How do you interpret market capitalization?
- A size and market-sentiment gauge, not a quality measure — interpret through valuation ratios (P/E, P/S) that relate it to fundamentals.
- How does market capitalization compare across companies?
- Comparable across companies as a size class; the input to every equity-price valuation multiple.