Robin Kramer - 08 Dec 2022 Form 4 Insider Report for BIOGEN INC. (BIIB)

Role: Chief Accounting Officer
Signature: /s/ Wendell Taylor, attorney-in-fact for Robin Kramer
Issuer symbol: BIIB
Transactions as of: 08 Dec 2022
Net transactions value: -$45,100
Form type: 4
Filing time: 12 Dec 2022, 17:04:37 UTC
Previous filing: 06 Jul 2022
Next filing: 27 Jan 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BIIB	Common Stock	Options Exercise	$0	+350	+17%	$0.000000	2,368	08 Dec 2022	Direct
transaction	BIIB	Common Stock	Tax liability	$45,100	-156	-6.6%	$289.10	2,212	08 Dec 2022	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	-350	-33%	$0.000000	702	08 Dec 2022	Common Stock	350	$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 (3) equal annual installments commencing on the first anniversary of the grant date of 12/8/2021.