<SEC-DOCUMENT>0000875045-15-000020-index.html : 20150626
<SEC-HEADER>0000875045-15-000020.hdr.sgml : 20150626
<ACCEPTANCE-DATETIME>20150626131037
ACCESSION NUMBER:		0000875045-15-000020
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20150626
DATE AS OF CHANGE:		20150626
EFFECTIVENESS DATE:		20150626

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOGEN INC.
		CENTRAL INDEX KEY:			0000875045
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				330112644
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-205254
		FILM NUMBER:		15954297

	BUSINESS ADDRESS:	
		STREET 1:		225 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		7814642000

	MAIL ADDRESS:	
		STREET 1:		225 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOGEN IDEC INC.
		DATE OF NAME CHANGE:	20070427

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOGEN IDEC INC
		DATE OF NAME CHANGE:	20031112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IDEC PHARMACEUTICALS CORP / DE
		DATE OF NAME CHANGE:	19970530
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>biib-2015junexs8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: biib-2015junexs8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5
<SEQUENCE>2
<FILENAME>biib-2015junexex5.htm
<DESCRIPTION>EXHIBIT 5
<TEXT>
Document 2 - file: biib-2015junexex5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>biib-2015junexex231.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: biib-2015junexex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>biogenlogostandardrgb01.jpg
<TEXT>
Document 4 - file: biogenlogostandardrgb01.jpg

</DOCUMENT>
</SEC-DOCUMENT>