Biogen Inc (BIIB)

Debt-to-equity ratio

		Dec 31, 2024	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020
Long-term debt	US$ in thousands	4,547,200	6,788,200	6,567,300	7,567,300	7,500,000
Total stockholders’ equity	US$ in thousands	16,716,000	14,799,400	13,397,900	10,896,200	10,700,300
Debt-to-equity ratio		0.27	0.46	0.49	0.69	0.70

December 31, 2024 calculation

Debt-to-equity ratio = Long-term debt ÷ Total stockholders’ equity
= $4,547,200K ÷ $16,716,000K
= 0.27

The debt-to-equity ratio of Biogen Inc has shown a decreasing trend over the past five years, declining from 0.70 as of December 31, 2020, to 0.27 as of December 31, 2024. This indicates that the company has been reducing its reliance on debt financing relative to equity. A lower debt-to-equity ratio can suggest a lower financial risk, as it implies a smaller proportion of debt in the company's capital structure compared to equity. Biogen's decreasing debt-to-equity ratio may imply improved financial stability and potentially better borrowing terms in the future.