Biogen - 34 Year Stock Price History | BIIB

The latest closing stock price for Biogen as of January 17, 2025 is 140.55.

  • An investor who bought $1,000 worth of Biogen stock at the IPO in 1991 would have $47,795 today, roughly 48 times their original investment - a 12.50% compound annual growth rate over 33 years.
  • The all-time high Biogen stock closing price was 438.73 on March 20, 2015.
  • The Biogen 52-week high stock price is 252.17, which is 79.4% above the current share price.
  • The Biogen 52-week low stock price is 140.05, which is 0.4% below the current share price.
  • The average Biogen stock price for the last 52 weeks is 201.94.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Biogen - 34 Year Stock Price History | BIIB

  • An investor who bought $1,000 worth of Biogen stock at the IPO in 1991 would have $47,795 today, roughly 48 times their original investment - a 12.50% compound annual growth rate over 33 years.
  • The all-time high Biogen stock closing price was 438.73 on March 20, 2015.
  • The Biogen 52-week high stock price is 252.17, which is 79.4% above the current share price.
  • The Biogen 52-week low stock price is 140.05, which is 0.4% below the current share price.
  • The average Biogen stock price for the last 52 weeks is 201.94.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.