Susan Alexander - Feb 6, 2025 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 6, 2025
Transactions value $
-$174,426
Form type
4
Date filed
2/10/2025, 06:42 PM
Previous filing
Nov 7, 2024
Next filing
Feb 12, 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BIIB Common Stock Options Exercise $0 +2.19K +6.93% $0.00 33.8K Feb 7, 2025 Direct
transaction BIIB Common Stock Tax liability -$90.9K -643 -1.9% $141.35 33.1K Feb 7, 2025 Direct
transaction BIIB Common Stock Options Exercise $0 +1.94K +5.85% $0.00 35.1K Feb 7, 2025 Direct
transaction BIIB Common Stock Tax liability -$83.5K -591 -1.68% $141.35 34.5K Feb 7, 2025 Direct
holding BIIB Common Stock 20.1K Feb 6, 2025 Susan H. Alexander 2021 Irrevocable Trust

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 +14.8K $0.00 14.8K Feb 6, 2025 Common Stock 14.8K $0.00 Direct F1
transaction BIIB Restricted Stock Unit Options Exercise $0 -2.19K -50% $0.00 2.19K Feb 7, 2025 Common Stock 2.19K $0.00 Direct F2
transaction BIIB Restricted Stock Unit Options Exercise $0 -1.94K -33.33% $0.00 3.88K Feb 7, 2025 Common Stock 1.94K $0.00 Direct F3
* 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 2/8/2023.
F3 The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.