Citable segment mix
BIIB's latest SEC segment disclosure for revenue by geography shows Rest of World as the largest listed segment at $78.10M (71.3% of disclosed segment revenue).
| Segment | Period | Revenue | Mix |
|---|---|---|---|
| Rest of World | Mar 31, 2026 | $78.10M | 71.3% |
| U.S. | Mar 31, 2026 | $31.40M | 28.7% |
Source: SEC EDGAR segment disclosures; period Mar 31, 2026.
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