Nicole Murphy - 01 Apr 2022 Form 4 Insider Report for BIOGEN INC. (BIIB)

Role: Head of Pharm Ops and Tech
Signature: /s/ Wendell Taylor, attorney in fact for Nicole Murphy
Issuer symbol: BIIB
Transactions as of: 01 Apr 2022
Net transactions value: -$17,695
Form type: 4
Filing time: 05 Apr 2022, 17:44:59 UTC
Previous filing: 23 Feb 2022
Next filing: 03 Aug 2022
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		+239	+14%		1,897	01 Apr 2022	Direct	F1
transaction	BIIB	Common Stock	Tax liability	$17,695	-84	-4.4%	$210.65	1,813	01 Apr 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		-239	-33%		479	01 Apr 2022	Common Stock	239	$0.000000	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit is converted to one share of common stock upon vesting.
F2	This award was granted to the reporting person on April 1, 2021 and vested with respect to 239 shares on April 1, 2022. The remaining portion of the award vests in equal installments on each of the second and third anniversary of the grant date.