Biogen (BIIB) Debt to Equity (2009 - 2025)

Biogen (BIIB) recorded quarterly Debt to Equity of $0.34 in Q4 2025, up 3948.22% quarter-over-quarter from $0.01 in Q2 2025, and down 8.57% on a YoY basis from $0.38 in Q4 2024.

Biogen (BIIB) Debt to Equity (2009 - 2025) Analysis & Trends

Biogen's Debt to Equity history runs 16 years deep, the most recent figure standing at $0.34 for Q4 2025.

  • In Q4 2025, Debt to Equity fell 8.57% year-over-year to $0.34; the TTM figure through Dec 2025 stood at $0.34 (down 8.57% YoY), while the FY2025 annual figure was $0.34, down 8.57% from the prior year.
  • Debt to Equity was $0.34 for Q4 2025 at Biogen, up from $0.01 in the prior quarter.
  • In the past five years, Debt to Equity ranged from a high of $0.47 in Q4 2022 to a low of $0.01 in Q2 2025.
  • Historically, Debt to Equity has averaged $0.29 across 5 years, with a median of $0.36 in 2025.
  • The sharpest annual moves came in 2022 and 2024: Debt to Equity jumped 414.62% in 2022, then declined 19.66% in 2024.
  • A 5-year view of Debt to Equity shows it stood at $0.09 in 2021, then surged by 414.62% to $0.47 in 2022, then retreated by 0.07% to $0.47 in 2023, then slipped by 19.66% to $0.38 in 2024, then decreased by 8.57% to $0.34 in 2025.
  • The last three Debt to Equity figures came in at $0.34 (Q4 2025), $0.01 (Q2 2025), and $0.38 (Q4 2024), per Business Quant data.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Debt/Equity (Qtr)
1 Gsk 92,316,836.42 Bn 92,316,831.46 Bn 7.76 Bn -
2 Eli Lilly 983.57 Bn 978.29 Bn 16.22 Bn 1.39
3 Johnson & Johnson 553.56 Bn 531.50 Bn 15.96 Bn 0.68
4 AbbVie 383.35 Bn 374.00 Bn 10.78 Bn -9.70
5 Merck 281.71 Bn 276.06 Bn 12.09 Bn 1.07
6 Amgen 182.20 Bn 170.16 Bn 5.87 Bn 6.24
7 Gilead Sciences 153.71 Bn 145.98 Bn 5.52 Bn 0.94
8 Pfizer 143.75 Bn 130.98 Bn -1.21 Bn 0.72
9 Bristol Myers Squibb 109.71 Bn 99.25 Bn 8.07 Bn 2.22
10 Biogen 28.97 Bn 24.68 Bn 1.82 Bn -

Historic Data

Download Data
DateValue
Dec 31, 2025 0.34
Jun 30, 2025 0.01
Dec 31, 2024 0.38
Dec 31, 2023 0.47
Dec 31, 2022 0.47
Dec 31, 2021 0.09
Dec 31, 2019 0.11
Mar 31, 2018 0.00
Dec 31, 2017 0.00
Sep 30, 2017 0.04
Jun 30, 2017 0.05
Mar 31, 2017 0.05
Dec 31, 2016 0.00
Sep 30, 2016 0.00
Jun 30, 2016 0.00
Mar 31, 2016 0.00
Dec 31, 2015 0.00
Sep 30, 2015 0.00
Jun 30, 2015 0.00
Mar 31, 2015 0.00