Biogen (BIIB) Total Debt (2009 - 2025)

Biogen's Total Debt history runs 16 years deep, the most recent figure standing at $6.3 billion for Q4 2025.

• In Q4 2025, Total Debt changed 0.14% year-over-year to $6.3 billion; the TTM figure through Dec 2025 stood at $6.3 billion (changed 0.14% YoY), while the FY2025 annual figure was $6.3 billion, changed 0.14% from the prior year.
• Total Debt was $6.3 billion for Q4 2025 at Biogen, up from $150.0 million in the prior quarter.
• In the past five years, Total Debt ranged from a high of $6.9 billion in Q4 2023 to a low of $150.0 million in Q2 2025.
• Historically, Total Debt has averaged $4.5 billion across 5 years, with a median of $6.3 billion in 2022.
• The sharpest annual moves came in 2022 and 2024: Total Debt jumped 528.67% in 2022, then declined 9.26% in 2024.
• A 5-year view of Total Debt shows it stood at $999.1 million in 2021, then surged by 528.67% to $6.3 billion in 2022, then climbed by 10.46% to $6.9 billion in 2023, then fell by 9.26% to $6.3 billion in 2024, then fell by 0.14% to $6.3 billion in 2025.
• The last three Total Debt figures came in at $6.3 billion (Q4 2025), $150.0 million (Q2 2025), and $6.3 billion (Q4 2024), per Business Quant data.