Priya Singhal - Dec 6, 2024 Form 4 Insider Report for BIOGEN INC. (BIIB)

Signature
/s/ Samuel Ntonme, attorney-in-fact for Priya Singhal
Stock symbol
BIIB
Transactions as of
Dec 6, 2024
Transactions value $
-$49,796
Form type
4
Date filed
12/9/2024, 04:57 PM
Previous filing
Sep 5, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BIIB Common Stock Options Exercise $0 +426 +8.01% $0.00 5.74K Dec 6, 2024 Direct
transaction BIIB Common Stock Tax liability -$32.5K -206 -3.59% $157.78 5.54K Dec 6, 2024 Direct
transaction BIIB Common Stock Sale -$17.3K -110 -1.99% $157.21 5.43K Dec 9, 2024 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction BIIB Restricted Stock Unit Options Exercise $0 -426 -100% $0.00 0 Dec 6, 2024 Common Stock 426 $0.00 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

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).

Explanation of Responses:

Id Content
F1 This award was granted to the reporting person on December 8, 2021 and will vest in three equal installments on each anniversary of the grant date.
F2 This award was granted to the reporting person on February 1, 2023 and will vest in three equal installments on each anniversary of the grant date.