Biogen (BIIB) Net Cash Flow (2009 - 2026)

Biogen's Net Cash Flow history runs 18 years deep, the most recent figure standing at $392.2 million for Q1 2026.

• In Q1 2026, Net Cash Flow rose 107.51% year-over-year to $392.2 million; the TTM figure through Mar 2026 stood at $734.8 million (down 52.11% YoY), while the FY2025 annual figure was $531.6 million, down 61.83% from the prior year.
• Net Cash Flow was $392.2 million for Q1 2026 at Biogen, up from -$856.8 million in the prior quarter.
• In the past five years, Net Cash Flow ranged from a high of $1.1 billion in Q3 2025 to a low of -$1.3 billion in Q4 2023.
• Historically, Net Cash Flow has averaged $66.2 million across 5 years, with a median of $47.6 million in 2024.
• Biggest YoY gain for Net Cash Flow was 718.59% in 2022; the steepest drop was 522.92% in 2022.
• A 5-year view of Net Cash Flow shows it stood at -$323.5 million in 2022, then slumped by 297.5% to -$1.3 billion in 2023, then jumped by 158.34% to $750.2 million in 2024, then plunged by 214.21% to -$856.8 million in 2025, then soared by 145.77% to $392.2 million in 2026.
• The last three Net Cash Flow figures came in at $392.2 million (Q1 2026), -$856.8 million (Q4 2025), and $1.1 billion (Q3 2025), per Business Quant data.