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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000875045-21-000010
Filing Date
2021-02-03
Accepted
2021-02-03 16:30:07
Documents
205
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K biib-20201231.htm   iXBRL 10-K 5145141
2 EX-4.4 biib-20201231xex44.htm EX-4.4 236662
3 EX-10.41 biib-20201231xex1041.htm EX-10.41 42725
4 EX-21 biib-20201231xex21.htm EX-21 42876
5 EX-23 biib-20201231xex23.htm EX-23 2693
6 EX-31.1 biib-20201231xex311.htm EX-31.1 10911
7 EX-31.2 biib-20201231xex312.htm EX-31.2 10763
8 EX-32.1 biib-20201231xex321.htm EX-32.1 8721
14 biib-20201231_g1.jpg GRAPHIC 12981
15 biib-20201231_g10.jpg GRAPHIC 72059
16 biib-20201231_g11.jpg GRAPHIC 629417
17 biib-20201231_g12.jpg GRAPHIC 629442
18 biib-20201231_g13.jpg GRAPHIC 628388
19 biib-20201231_g14.jpg GRAPHIC 9985
20 biib-20201231_g15.jpg GRAPHIC 9120
21 biib-20201231_g16.jpg GRAPHIC 21759
22 biib-20201231_g17.jpg GRAPHIC 30240
23 biib-20201231_g18.jpg GRAPHIC 3140
24 biib-20201231_g19.jpg GRAPHIC 121990
25 biib-20201231_g2.jpg GRAPHIC 22692
26 biib-20201231_g20.jpg GRAPHIC 63939
27 biib-20201231_g21.jpg GRAPHIC 62803
28 biib-20201231_g22.jpg GRAPHIC 64204
29 biib-20201231_g23.jpg GRAPHIC 61806
30 biib-20201231_g24.jpg GRAPHIC 64317
31 biib-20201231_g25.jpg GRAPHIC 85321
32 biib-20201231_g26.jpg GRAPHIC 54102
33 biib-20201231_g27.jpg GRAPHIC 66145
34 biib-20201231_g28.jpg GRAPHIC 58514
35 biib-20201231_g29.jpg GRAPHIC 76630
36 biib-20201231_g3.jpg GRAPHIC 152875
37 biib-20201231_g30.jpg GRAPHIC 130746
38 biib-20201231_g31.jpg GRAPHIC 38421
39 biib-20201231_g32.jpg GRAPHIC 38218
40 biib-20201231_g33.jpg GRAPHIC 37416
41 biib-20201231_g34.jpg GRAPHIC 35028
42 biib-20201231_g35.jpg GRAPHIC 39425
43 biib-20201231_g36.jpg GRAPHIC 37354
44 biib-20201231_g37.jpg GRAPHIC 34759
45 biib-20201231_g38.jpg GRAPHIC 65848
46 biib-20201231_g39.jpg GRAPHIC 35402
47 biib-20201231_g4.jpg GRAPHIC 7384
48 biib-20201231_g40.jpg GRAPHIC 32620
49 biib-20201231_g5.jpg GRAPHIC 4657
50 biib-20201231_g6.jpg GRAPHIC 5670
51 biib-20201231_g7.jpg GRAPHIC 5127
52 biib-20201231_g8.jpg GRAPHIC 6359
53 biib-20201231_g9.jpg GRAPHIC 2031
  Complete submission text file 0000875045-21-000010.txt   31908411

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT biib-20201231.xsd EX-101.SCH 143020
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT biib-20201231_cal.xml EX-101.CAL 180896
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT biib-20201231_def.xml EX-101.DEF 1002749
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT biib-20201231_lab.xml EX-101.LAB 1486976
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT biib-20201231_pre.xml EX-101.PRE 1263074
54 EXTRACTED XBRL INSTANCE DOCUMENT biib-20201231_htm.xml XML 4664674
Mailing Address 225 BINNEY STREET CAMBRIDGE MA 02142
Business Address 225 BINNEY STREET CAMBRIDGE MA 02142 7814642000
BIOGEN INC. (Filer) CIK: 0000875045 (see all company filings)

IRS No.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-19311 | Film No.: 21586576
SIC: 2836 Biological Products, (No Diagnostic Substances)
Office of Life Sciences