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Biogen (BIIB) Change in Taxes (2016 - 2025)

Biogen has reported Change in Taxes over the past 12 years, most recently at -$194.0 million for Q4 2025.

  • Quarterly results put Change in Taxes at -$194.0 million for Q4 2025, down 1282.93% from a year ago — trailing twelve months through Dec 2025 was -$958.1 million (down 1320.51% YoY), and the annual figure for FY2025 was -$958.1 million, down 1320.51%.
  • Change in Taxes for Q4 2025 was -$194.0 million at Biogen, up from -$229.4 million in the prior quarter.
  • Over the last five years, Change in Taxes for BIIB hit a ceiling of $106.7 million in Q2 2021 and a floor of -$603.8 million in Q2 2025.
  • Median Change in Taxes over the past 5 years was -$17.6 million (2021), compared with a mean of -$54.5 million.
  • Peak annual rise in Change in Taxes hit 3240.91% in 2025, while the deepest fall reached 10878.18% in 2025.
  • Biogen's Change in Taxes stood at -$29.7 million in 2021, then crashed by 41.75% to -$42.1 million in 2022, then plummeted by 337.53% to -$184.2 million in 2023, then soared by 108.9% to $16.4 million in 2024, then tumbled by 1282.93% to -$194.0 million in 2025.
  • The last three reported values for Change in Taxes were -$194.0 million (Q4 2025), -$229.4 million (Q3 2025), and -$603.8 million (Q2 2025) per Business Quant data.