R. Michael Mcdonnell - Feb 10, 2025 Form 4 Insider Report for BIOGEN INC. (BIIB)

Signature
/s/ Samuel Ntonme, attorney-in-fact for Michael McDonnell
Stock symbol
BIIB
Transactions as of
Feb 10, 2025
Transactions value $
-$195,422
Form type
4
Date filed
2/12/2025, 05:46 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 +3.26K +14.5% $0.00 25.7K Feb 10, 2025 Direct
transaction BIIB Common Stock Tax liability -$195K -1.37K -5.33% $142.54 24.3K 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 -3.26K -100% $0.00 0 Feb 10, 2025 Common Stock 3.26K $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.