Biogen Inc. (BIIB) — Ownership
Institutional and insider ownership of Biogen Inc., top holders, and 13F filings.
Institutional ownership
| Year | Holders | % institutional |
|---|---|---|
| 2026 Q1 | 1,047 | 91.98% |
Institutional and insider ownership of Biogen Inc., top holders, and 13F filings.
Institutional ownership
| Year | Holders | % institutional |
|---|---|---|
| 2026 Q1 | 1,047 | 91.98% |