The latest closing stock price for Biogen as of July 11, 2025 is 134.21.
An investor who bought $1,000 worth of Biogen stock at the IPO in 1991 would have $41,947 today, roughly 42 times their original investment - a 11.69% compound annual growth rate over 34 years.
The all-time high Biogen stock closing price was 475.98 on March 20, 2015.
The Biogen 52-week high stock price is 236.48, which is 76.2% above the current share price.
The Biogen 52-week low stock price is 110.04, which is 18% below the current share price.
The average Biogen stock price for the last 52 weeks is 158.56.
An investor who bought $1,000 worth of Biogen stock at the IPO in 1991 would have $41,947 today, roughly 42 times their original investment - a 11.69% compound annual growth rate over 34 years.
The all-time high Biogen stock closing price was 475.98 on March 20, 2015.
The Biogen 52-week high stock price is 236.48, which is 76.2% above the current share price.
The Biogen 52-week low stock price is 110.04, which is 18% below the current share price.
The average Biogen stock price for the last 52 weeks is 158.56.