BIOGEN INC. — Director's Dealing 2015

Jul 27, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOGEN INC. (BIIB)
CIK: 0000875045
Period of Report: 2015-07-27

Reporting Person: PAPADOPOULOS STELIOS (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-07-27	Common Stock	P	5000	$304.776	Acquired	5000	Indirect
2015-07-27	Common Stock	P	5000	$304.979	Acquired	5000	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	16580	Direct

Footnotes

F1: Full information regarding the number of shares purchased at each separate price will be provided upon request by the SEC staff, the issuer, or a security holder of the issuer.

F2: This represents the weighted average price for shares purchased at a range between $304.745 (low) and $304.939 (high).

F3: This represents the weighted average price for shares purchased at a range between $304.978 (low) and $304.98 (high).