BIOGEN INC. — Director's Dealing 2021

Dec 10, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2021-12-08

Reporting Person: Kramer Robin (Chief Accounting Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-08	Restricted Stock Unit	$0	A	1052	Acquired	2024-12-08	Common Stock (1052)	Direct

Footnotes

F1: The restricted stock units vest in three (3) equal annual installments commencing on the first anniversary of the grant date of 12/8/2021.