• Regeneron Pharmaceuticals average return on investment for 2023 was 15.81, a 41.49% decline from 2022.
• Regeneron Pharmaceuticals average return on investment for 2022 was 27.02, a 34.15% decline from 2021.
• Regeneron Pharmaceuticals average return on investment for 2021 was 41.03, a 62.3% decline 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.