• Biogen average return on equity for 2023 was 15.57, a 22.81% decline from 2022.
• Biogen average return on equity for 2022 was 20.17, a 9.09% decline from 2021.
• Biogen average return on equity for 2021 was 18.49, a 56.15% increase from 2020.

Roe - return on equity can be defined as the amount of net income returned as a percentage of shareholders equity. Return on equity measures a corporation's profitability by revealing how much profit a company generates with the money shareholders have invested.