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Asset Utilization RatioAssets AverageDebt RatioDebt to EquityEBIT MarginEBITDA MarginEBT MarginEnterprise ValueEquity AverageEquity RatioFCF MarginGross MarginInventory AverageInvested CapitalNet MarginOperating MarginReturn on AssetsReturn on Capital EmployedReturn on EquityReturn on Invested CapitalReturn on Sales

Biogen (BIIB) Debt to Equity (2016 - 2025)

Biogen has reported Debt to Equity over the past 16 years, most recently at $0.34 for Q4 2025.

  • Quarterly results put Debt to Equity at $0.34 for Q4 2025, down 8.57% from a year ago — trailing twelve months through Dec 2025 was $0.34 (down 8.57% YoY), and the annual figure for FY2025 was $0.34, down 8.57%.
  • Debt to Equity for Q4 2025 was $0.34 at Biogen, up from $0.01 in the prior quarter.
  • Over the last five years, Debt to Equity for BIIB hit a ceiling of $0.47 in Q4 2022 and a floor of $0.01 in Q2 2025.
  • Median Debt to Equity over the past 5 years was $0.36 (2025), compared with a mean of $0.29.
  • Biggest five-year swings in Debt to Equity: soared 414.62% in 2022 and later dropped 19.66% in 2024.
  • Biogen's Debt to Equity stood at $0.09 in 2021, then soared by 414.62% to $0.47 in 2022, then decreased by 0.07% to $0.47 in 2023, then dropped by 19.66% to $0.38 in 2024, then fell by 8.57% to $0.34 in 2025.
  • The last three reported values for Debt to Equity were $0.34 (Q4 2025), $0.01 (Q2 2025), and $0.38 (Q4 2024) per Business Quant data.