• Alkermes average return on investment for 2023 was 8.41, a 203.96% increase from 2022.
• Alkermes average return on investment for 2022 was -8.09, a 48.17% decline from 2021.
• Alkermes average return on investment for 2021 was -5.46, a 34.53% increase from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.