BIOGEN INC. — Director's Dealing 2011

Nov 14, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN IDEC INC. (BIIB)
CIK: 0000875045
Period of Report: 2011-11-09

Reporting Person: Gagnon Robert E. (Chief Acct Officer VP & Contr)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-09	Common Stock	S	796	$112.04	Disposed	6216	Direct

Footnotes

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