Biogen Inc. (BIIB) Share Price - NASDAQ

Biogen Inc. (BIIB) share price & fundamentals

Biogen Inc. discovers, develops, and delivers therapies for neurological diseases.

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Biogen Inc. — frequently asked questions

What does Biogen Inc. do?

Biogen Inc. discovers, develops, and delivers therapies for neurological diseases. Biogen Inc. operates in the Healthcare sector and trades on the NASDAQ under the ticker BIIB.

Which stock exchange is BIIB listed on?

Biogen Inc. is listed on the NASDAQ, where it trades under the ticker symbol BIIB. It is classified in the Healthcare sector.

What is BIIB's share price?

BIIB last traded at USD 220.81 on 4 September 2026, down 1.65% on the session. Live prices for Biogen Inc. update through the trading day on Wallflake.

What is Biogen Inc.'s market capitalisation?

Biogen Inc. has a market capitalisation of approximately USD 32.63B, based on its closing price on 4 September 2026.

What is BIIB's 52-week high and low?

Over the past 52 weeks BIIB has traded between a low of USD 135.39 and a high of USD 225.80.

What is BIIB's P/E ratio and EPS?

BIIB has a price-to-earnings (P/E) ratio of 25.08 and earnings per share (EPS) of USD 8.79. These figures are reported metrics, not a valuation opinion — Wallflake does not issue buy, sell or hold recommendations.

How can I buy BIIB shares?

BIIB shares are bought and sold through a broker licensed to trade on the NASDAQ. You open an account with a licensed broker, fund it, and place an order quoting the ticker BIIB. Wallflake is a market-data and research platform, not a broker, and does not execute trades or give investment advice. See our NASDAQ guide for how the market works. Read the guide

Figures are drawn from Wallflake's market data and are provided for information only. Nothing here is investment advice or a recommendation to buy or sell any security.