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BIOGEN INC. Director's Dealing 2024

Jan 31, 2024

30291_dirs_2024-01-31_c9a919e9-8f53-4e0e-8382-18cf503ad75d.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2024-01-29

Reporting Person: ALEXANDER SUSAN H (EVP Chief Legal Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-01-29	Performance Stock Unit	$0	A	3423	Acquired	2024-02-18	Common Stock (3423)	Direct

Footnotes

F1: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.