Ginger Gregory - Feb 10, 2025 Form 4 Insider Report for BIOGEN INC. (BIIB)

Signature
/s/ Samuel Ntonme, attorney-in-fact for Dr. Gregory
Stock symbol
BIIB
Transactions as of
Feb 10, 2025
Transactions value $
-$90,370
Form type
4
Date filed
2/12/2025, 05:43 PM
Previous filing
Feb 10, 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BIIB Common Stock Options Exercise $0 +2.16K +13.43% $0.00 18.2K Feb 10, 2025 Direct
transaction BIIB Common Stock Tax liability -$90.4K -634 -3.48% $142.54 17.6K Feb 10, 2025 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 -2.16K -100% $0.00 0 Feb 10, 2025 Common Stock 2.16K $0.00 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of February 10, 2022.