BIOGEN INC. — Director's Dealing 2016

Dec 5, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2016-12-01

Reporting Person: Karaboutis Adriana (EVP, Tech, Bus. Sol & Corp Aff)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-12-01	Common Stock	F	171	$295.78	Disposed	7408	Direct
2016-12-01	Common Stock	S	48	$296.53	Disposed	7360	Direct

Footnotes

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