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Biogen (BIIB) R&D spending by quarter

Biogen's R&D spending was $574M in Q3 2026 (third quarter 2026), +8% from Q2 2026. Over the last 7 quarters it ranged from $399M (Q2 2025) to $574M (Q3 2026).

Biogen R&D spending by quarterBiogen R&D spending by quarter$434MQ1 2025$399MQ2 2025$436MQ3 2025$509MQ4 2025$539MQ1 2026$530MQ2 2026$574MQ3 2026
QuarterR&D spendingQ/QY/Y
Q3 2026$574M+8%+32%
Q2 2026$530M-2%+33%
Q1 2026$539M+6%+24%
Q4 2025$509M+17%—
Q3 2025$436M+9%—
Q2 2025$399M-8%—
Q1 2025$434M——

Q3 2026 at a glance

Biogen, Q3 2026: revenue $2.8B (+11% year over year), operating margin -0.3%, net loss $20.6M, operating cash flow $641M. The chart follows the revenue to costs, profit and cash.

Questions

What is Biogen's R&D spending?

Biogen's R&D spending was $574M in Q3 2026 (third quarter 2026), +8% from Q2 2026.

How has Biogen's R&D spending changed?

Over the last 7 quarters it ranged from $399M (Q2 2025) to $574M (Q3 2026).

Q3 2026 results → · How Biogen makes money →