| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Izzar Rachid | Head of Global Product Strat. | 225 BINNEY STREET, CAMBRIDGE | /s/ Wendell Taylor, attorney-in-fact for Rachid Izzar | 2025-07-16 | 0001875506 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BIIB | Common Stock | Sale | -$300K | -2.22K | -25.99% | $135.00 | 6.33K | Jul 8, 2025 | Direct |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).