BIOGEN INC. — Director's Dealing 2023

Jul 5, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2023-06-30

Reporting Person: Kramer Robin (Chief Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-06-30	Common Stock	M	252	—	Acquired	4095.7483	Direct
2023-06-30	Common Stock	F	122	$284.85	Disposed	3973.7483	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-06-30	Restricted Stock Unit	$0	M	252	Disposed	2023-07-01	Common Stock (252)	Direct

Footnotes

F1: The restricted stock units vested in three (3) equal annual installments commencing one year after the grant date of 07/01/2020.