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Biogen BIIB Business Segments

TTM Q1 '26TTM Q4 '25TTM Q3 '25TTM Q2 '25TTM Q1 '25
Revenue by Product
Other$223.2M+13.2%$197.2M+25.5%$157.1M+24.8%$125.9M+30.2%$96.7M+17.2%
Total Revenue by Product
AVONEX$691.9M-0.5%$695.5M-1.1%$703M+1.8%$690.7M-0.7%$695.8M-1.7%
BENEPALI$464M+2.4%$453.2M-3.6%$470.3M+0.8%$466.5M-1.1%$471.7M-1.5%
BYOOVIZ$23.5M-27.5%$32.4M-4.1%$33.8M-2.9%$34.8M-12.8%$39.9M+9.0%
FAMPYRA$1.1M-21.4%$1.4M-90.5%$14.7M-56.9%$34.1M-35.4%$52.8M-26.4%
FLIXABI$50M-4.9%$52.6M-10.5%$58.8M-1.5%$59.7M+2.1%$58.5M-7.4%
FUMADERM And ADUHELM$400K-81.0%$2.1M-56.3%$4.8M-30.4%$6.9M-25.0%$9.2M-10.7%
IMRALDI$192.4M+1.2%$190.2M-3.8%$197.7M-0.8%$199.2M-3.2%$205.7M-3.5%
PLEGRIDY$254.9M+1.9%$250.1M-1.1%$252.9M-1.1%$255.8M+0.4%$254.9M-2.1%
QALSODY$103.9M+19.6%$86.9M+18.1%$73.6M+26.2%$58.3M+34.6%$43.3M+33.6%
SKYCLARYS$547.3M+5.1%$520.5M+6.4%$489.3M+6.7%$458.7M+7.1%$428.4M+12.0%
SPINRAZA$1.5B-3.2%$1.55B-4.0%$1.61B-0.5%$1.62B-2.2%$1.66B+5.3%
TECFIDERA$583.1M-14.2%$679.7M-14.6%$795.7M-7.5%$860.3M-6.4%$918.9M-5.0%
TOFIDENCE$600K-14.3%$700K+250%$200K-50.0%$400K-66.7%$1.2M+9.1%
TYSABRI$1.73B+3.6%$1.67B-1.1%$1.68B+1.6%$1.66B-0.5%$1.67B-2.9%
VUMERITY$787M+5.4%$746.8M+0.6%$742.3M+8.2%$685.8M+7.3%$639.3M+1.8%
ZURZUVAE$222.8M+14.2%$195.1M+28.1%$152.3M+28.0%$119M+36.0%$87.5M+21.2%
After Second GAZYVA Threshold Date by Product
GAZYVA140%0.0pp140%0.0pp140%0.0pp140%0.0pp140%0.0pp
RITUXAN140%0.0pp140%0.0pp140%0.0pp140%0.0pp140%0.0pp
Share of non-controling interest recognized by Product
Alzheimer's collaboration revenue200%0.0pp200%0.0pp200%0.0pp200%0.0pp200%0.0pp
Estimated additional payments upon achievement of development and commercial milestones by Product
Felzartamab And Izastobart/HIB210$2.56B0.0%$2.56B

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Questions, answered.

How does Biogen break its business down?
Biogen (BIIB) reports revenue by product across 2 parts — Contract manufacturing, royalty and other revenue and Other. Each is extracted from the segment footnotes and tracked over time.
Where does Biogen's segment data come from?
Segment breakdowns are pulled from the segment footnotes in Biogen's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.