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Biogen (BIIB) operating margin by quarter

Biogen's operating margin was 4.8% in Q2 2026 (second quarter 2026), -10.4 pts from Q1 2026. Over the last 5 quarters it ranged from 4.8% (Q2 2026) to 28.1% (Q2 2025).

Biogen operating margin by quarterBiogen operating margin by quarter12.8%Q1 202528.1%Q2 202522.0%Q3 202515.2%Q1 20264.8%Q2 2026
QuarterOperating marginQ/QY/Y
Q2 20264.8%-10.4 pts-23.3 pts
Q1 202615.2%-6.7 pts+2.4 pts
Q3 202522.0%-6.1 pts—
Q2 202528.1%+15.3 pts—
Q1 202512.8%——

Q2 2026 at a glance

Biogen, Q2 2026: revenue $2.7B (+3% year over year), operating margin 4.8%, net earnings $97.5M, operating cash flow $449M. The chart follows the revenue to costs, profit and cash.

Questions

What is Biogen's operating margin?

Biogen's operating margin was 4.8% in Q2 2026 (second quarter 2026), -10.4 pts from Q1 2026.

How has Biogen's operating margin changed?

Over the last 5 quarters it ranged from 4.8% (Q2 2026) to 28.1% (Q2 2025).

Q2 2026 results → · How Biogen makes money →