| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BIIB | Performance Stock Unit | Award | $0 | +1,370 | $0 | 1,370 | 29 Jan 2024 | Common Stock | 1,370 | $0 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024. |