BIOGEN INC. — Director's Dealing 2020

Nov 6, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2020-11-04

Reporting Person: Sandrock Alfred (EVP, Research & Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-04	Common Stock	S	1500	$350.00	Disposed	13066.2101	Direct

Footnotes

F1: Sale pursuant to a trading plan intended to comply with Rule 10b5-1 of the Securities Exchange Act of 1934.

F2: Includes 84.965 shares acquired under the Biogen Inc. employee stock purchase plan on March 31, 2020.