Nicole Murphy - 01 Apr 2024 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 2024
Net transactions value: -$25,135
Form type: 4
Filing time: 03 Apr 2024, 20:11:14 UTC
Previous filing: 21 Feb 2024
Next filing: 10 Feb 2025
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	+240	+2.5%	$0.000000	9,751	01 Apr 2024	Direct	F1
transaction	BIIB	Common Stock	Tax liability	$25,135	-117	-1.2%	$214.83	9,634	01 Apr 2024	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	-240	-100%	$0.000000^*	0	01 Apr 2024	Common Stock	240	$0.000000	Direct	F2

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

Explanation of Responses:

Id	Content
F1	1. Includes 93.3846 shares acquired under the Biogen Inc. employee stock purchase plan on 3/28/2024.
F2	This award was granted to the reporting person on April 1, 2021. The final portion of the awards vested on the third anniversary of the grant date.