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BIOGEN INC.
BIIB - CIK 0000875045
Market cap$28.73 B
Rank#480
SEC filings2,690
Market capitalization of BIOGEN INC.
As of 2026-06-11, BIOGEN INC. (BIIB) has a market capitalization of $28.73 B, making it the #480 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $28.73 B |
| 2026-06-10 | $28.68 B |
| 2026-05-29 | $29.19 B |
| 2026-05-28 | $29.08 B |
| 2026-05-26 | $28.73 B |
| 2026-05-25 | $28.61 B |
| 2026-05-24 | $28.61 B |
| 2026-05-22 | $28.61 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
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Frequently asked questions
What is BIOGEN INC.'s market cap?
As of 2026-06-11, BIOGEN INC. (BIIB) has a market capitalization of $28.73 B, making it the #480 most valuable US-listed company.
Where does BIOGEN INC. rank by market cap?
BIOGEN INC. is the #480 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.