Who is the largest shareholder of BIIB?
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Who is the largest shareholder of BIIB?
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BIIB Ownership & Insider Activity
Institutional Ownership
Top Holders
| Holder | Shares | Value |
|---|---|---|
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
| Unknown | N/A | N/A |
Recent Insider Trades
| Name | Type | Shares | Date |
|---|---|---|---|
| Keeney Adam | 939 | 2026-05-01 | |
| Keeney Adam | 455 | 2026-05-01 | |
| Keeney Adam | 939 | 2026-05-01 | |
| Godbout Sean | 181 | 2026-04-01 | |
| Godbout Sean | 54 | 2026-04-01 | |
| Godbout Sean | 181 | 2026-04-01 |