Biogen (BIIB) Inventory Average (2009 - 2026)

Biogen's Inventory Average history runs 18 years deep, the most recent figure standing at $2.1 billion for Q1 2026.

• In Q1 2026, Inventory Average fell 13.04% year-over-year to $2.1 billion; the TTM figure through Mar 2026 stood at $2.1 billion (down 13.04% YoY), while the FY2025 annual figure was $2.3 billion, down 7.2% from the prior year.
• Inventory Average was $2.1 billion for Q1 2026 at Biogen, down from $2.2 billion in the prior quarter.
• In the past five years, Inventory Average ranged from a high of $2.8 billion in Q4 2023 to a low of $1.3 billion in Q2 2022.
• Historically, Inventory Average has averaged $2.0 billion across 5 years, with a median of $2.2 billion in 2025.
• The sharpest annual moves came in 2023 and 2026: Inventory Average jumped 102.61% in 2023, then fell 13.04% in 2026.
• A 5-year view of Inventory Average shows it stood at $1.4 billion in 2022, then jumped by 102.61% to $2.8 billion in 2023, then slipped by 10.53% to $2.5 billion in 2024, then decreased by 11.2% to $2.2 billion in 2025, then retreated by 5.95% to $2.1 billion in 2026.
• The last three Inventory Average figures came in at $2.1 billion (Q1 2026), $2.2 billion (Q4 2025), and $2.2 billion (Q3 2025), per Business Quant data.