Ginger Gregory - Feb 6, 2025 Form 4 Insider Report for BIOGEN INC. (BIIB)

Role
EVP, Human Resources
Signature
/s/ Samuel Ntonme, attorney-in-fact for Dr. Gregory
Stock symbol
BIIB
Transactions as of
Feb 6, 2025
Transactions value $
-$147,004
Form type
4
Date filed
2/10/2025, 06:44 PM
Previous filing
Feb 21, 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 +1.64K +11.95% $0.00 15.3K Feb 7, 2025 Direct F1
transaction BIIB Common Stock Tax liability -$67.8K -480 -3.13% $141.35 14.8K Feb 7, 2025 Direct
transaction BIIB Common Stock Options Exercise $0 +1.8K +12.14% $0.00 16.6K Feb 7, 2025 Direct
transaction BIIB Common Stock Tax liability -$79.2K -560 -3.37% $141.35 16.1K Feb 7, 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 +11.2K $0.00 11.2K Feb 6, 2025 Common Stock 11.2K $0.00 Direct F2
transaction BIIB Restricted Stock Unit Options Exercise $0 -1.64K -50% $0.00 1.64K Feb 7, 2025 Common Stock 1.64K $0.00 Direct F3
transaction BIIB Restricted Stock Unit Options Exercise $0 -1.8K -33.32% $0.00 3.6K Feb 7, 2025 Common Stock 1.8K $0.00 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 93.3846 shares acquired under the Biogen Inc. employee stock purchase plan on 3/31/2024.
F2 The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of February 6, 2025.
F3 The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/08/2023.
F4 The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.