Rachid Izzar - 13 Feb 2026 Form 4 Insider Report for BIOGEN INC. (BIIB)

Signature
/s/ Wendell Taylor, attorney-in-fact for Rachid Izzar
Issuer symbol
BIIB
Transactions as of
13 Feb 2026
Net transactions value
$0
Form type
4
Filing time
17 Feb 2026, 20:11:16 UTC
Previous filing
10 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Izzar Rachid Head of Global Product Strat. 225 BINNEY STREET, CAMBRIDGE /s/ Wendell Taylor, attorney-in-fact for Rachid Izzar 17 Feb 2026 0001875506

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 +7,390 $0.000000 7,390 13 Feb 2026 Common Stock 7,390 $0.000000 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 13, 2026.