Biogen vs Gilead Sciences: revenue, profit, margins and growth compared
Biogen brought in $9.9B of revenue in fiscal 2025, Gilead Sciences $29.4B in fiscal 2025. Revenue changed by +2.2% at Biogen and +2.4% at Gilead Sciences on the year before, so Gilead Sciences grew faster. Biogen kept 13.1% of its revenue as net profit, Gilead Sciences 28.9%. Free cash flow was $2.1B at Biogen and $9.5B at Gilead Sciences.
Fiscal years as each company reports them; the two may end in different months.
Questions about Biogen and Gilead Sciences
Which is bigger by revenue, Biogen or Gilead Sciences?
Gilead Sciences is bigger by revenue: $29.4B in fiscal 2025, against $9.9B for Biogen in fiscal 2025.
Which keeps more of its revenue as profit, Biogen or Gilead Sciences?
Biogen had a net margin of 13.1% in fiscal 2025; Gilead Sciences had 28.9% in fiscal 2025.
Which grew revenue faster, Biogen or Gilead Sciences?
In their latest fiscal years revenue changed by +2.2% at Biogen and +2.4% at Gilead Sciences.
Where do these numbers come from?
From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.