← All companies
BIOGEN INC.
BIIB - Company ID 0000875045
Market cap$36.75 B
Rank#401
Filings2,692
Market capitalization of BIOGEN INC.
As of 2026-11-06, BIOGEN INC. (BIIB) has a market capitalization of $36.75 B, making it the #401 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-11-06 | $36.75 B |
| 2026-11-05 | $36.06 B |
| 2026-11-04 | $37.38 B |
| 2026-11-03 | $36.80 B |
| 2026-11-02 | $36.81 B |
| 2026-11-01 | $37.44 B |
| 2026-10-31 | $37.44 B |
| 2026-10-30 | $37.46 B |
| 2026-10-29 | $37.02 B |
| 2026-10-28 | $36.39 B |
| 2026-10-27 | $37.31 B |
| 2026-10-26 | $37.24 B |
Market Cap of similar companies
Frequently asked questions
What is BIOGEN INC.'s market cap?
As of 2026-11-06, BIOGEN INC. (BIIB) has a market capitalization of $36.75 B, making it the #401 most valuable US-listed company.
Where does BIOGEN INC. rank by market cap?
BIOGEN INC. is the #401 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.