Biogen stock return
$218.60Change from previous close: −0.58%Absolute change: −$1.28
$1,000 invested in Biogen 5 years ago, on October 5, 2021, would be worth $780 today: −21.97% in total, −4.84% per year. This is the price return only: dividends are excluded.
Historical returns
| Period | From | Starting price | Total return | Per year | Value of $1,000 |
|---|---|---|---|---|---|
| 1 year | October 6, 2025 | $154.05 | +42.04% | +42.04% | $1,420 |
| 3 years | October 5, 2023 | $259.77 | −15.76% | −5.56% | $842 |
| 5 years | October 5, 2021 | $280.44 | −21.97% | −4.84% | $780 |
| 10 years | October 5, 2016 | $309.70 | −29.34% | −3.41% | $707 |
| Since the start of the data | September 17, 1991 | $3.13 | +6,902.24% | +12.89% | $70,022 |
Price return only, based on daily closes adjusted for stock splits; dividends excluded. Last close: October 5, 2026.
Calculate your investment
It would be worth $780 today
−21.97% on the amount invested
Purchase price $280.44 on October 5, 2021
Price of the first trading day from the chosen date; more than 5 years ago, the start of that week (more than 15 years ago, of that month).