Biogen (BIIB) Market Capitalization (2009 - 2026)

Biogen has reported Market Capitalization for 18 years, with the latest figure at $31.9 billion in Q2 2026.

• On a quarterly basis, Market Capitalization rose 73.37% year-over-year to $31.9 billion in Q2 2026; TTM through Jun 2026 was $31.9 billion, a 73.37% increase from a year earlier, with the FY2025 full-year figure at $25.8 billion, up 15.88% from the prior year.
• Market Capitalization was $31.9 billion for Q2 2026 at Biogen, up from $27.1 billion in the prior quarter.
• The five-year high for Market Capitalization was $41.3 billion in Q2 2023, with the low at $18.4 billion in Q2 2025.
• Average Market Capitalization over 5 years is $30.8 billion, with a median of $31.1 billion recorded in 2022.
• The sharpest annual moves came in 2025 and 2026: Market Capitalization tumbled 45.47% in 2025, then soared 73.37% in 2026.
• Over 5 years, Market Capitalization stood at $39.9 billion in 2022, then fell by 5.97% to $37.5 billion in 2023, then sank by 40.54% to $22.3 billion in 2024, then climbed by 15.88% to $25.8 billion in 2025, then rose by 23.57% to $31.9 billion in 2026.
• The last three Market Capitalization figures came in at $31.9 billion (Q2 2026), $27.1 billion (Q1 2026), and $25.8 billion (Q4 2025), per Business Quant data.