BIOGEN INC. — Director's Dealing 2015

Mar 16, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN IDEC INC. (BIIB)
CIK: 0000875045
Period of Report: 2015-03-13

Reporting Person: SCANGOS GEORGE A (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-03-13	Common Stock	S	537	$412.688	Disposed	45176	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5378	Indirect
Common Stock	5378	Indirect

Footnotes

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

F2: Full information regarding the number of shares sold at each separate price will be provided upon request by the SEC staff, the issuer, or a security holder of the issuer.

F3: This represents the weighted average price for shares sold at a range between $412.63 (low) and $412.76 (high).