| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BIIB | Common Stock | Sale | $98,701 | -360 | -4.6% | $274.17 | 7,400 | 04 Jun 2021 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Sale pursuant to a trading plan intended to comply with Rule 10b5-1 of the Securities Exchange Act of 1934. |