Susan Alexander - Feb 7, 2024 Form 4 Insider Report for BIOGEN INC. (BIIB)

Role
EVP Chief Legal Officer
Signature
/s/ Wendell Taylor, attorney-in-fact for Susan Alexander
Stock symbol
BIIB
Transactions as of
Feb 7, 2024
Transactions value $
-$157,397
Form type
4
Date filed
2/9/2024, 08:16 PM
Previous filing
Jan 31, 2024
Next filing
Feb 13, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BIIB Common Stock Options Exercise $0 +2.19K +4.77% $0.00 48.1K Feb 8, 2024 Direct
transaction BIIB Common Stock Tax liability -$157K -655 -1.36% $240.30 47.4K Feb 8, 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 Award $0 +5.82K $0.00 5.82K Feb 7, 2024 Common Stock 5.82K $0.00 Direct F1
transaction BIIB Restricted Stock Unit Options Exercise $0 -2.19K -33.33% $0.00 4.38K Feb 8, 2024 Common Stock 2.19K $0.00 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 (3) equal annual installments, commencing one year after the grant date of 02/07/2024.
F2 The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 2/8/2023.