Adam Keeney - 06 Feb 2025 Form 4 Insider Report for BIOGEN INC. (BIIB)

Signature
/s/ Samuel Ntonme, attorney-in-fact for Mr. Keeney
Issuer symbol
BIIB
Transactions as of
06 Feb 2025
Net transactions value
-$79,580
Form type
4
Filing time
10 Feb 2025, 18:51:12 UTC
Previous filing
03 May 2024
Next filing
05 May 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BIIB Common Stock Options Exercise $0 +1,801 +272% $0.000000 2,463 07 Feb 2025 Direct
transaction BIIB Common Stock Tax liability $79,580 -563 -23% $141.35 1,900 07 Feb 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 Award $0 +9,835 $0.000000 9,835 06 Feb 2025 Common Stock 9,835 $0.000000 Direct F1
transaction BIIB Restricted Stock Unit Options Exercise $0 -1,801 -33% $0.000000 3,604 07 Feb 2025 Common Stock 1,801 $0.000000 Direct F2
* 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 6, 2025.
F2 The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.