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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000875045-24-000009
Filing Date
2024-02-14
Accepted
2024-02-13 17:40:44
Documents
216
Period of Report
2023-12-31

Document Format Files

Seq Description Document Type Size
1 10-K biib-20231231.htm   iXBRL 10-K 4278977
2 EX-4.6 exhibit46-descriptionofsec.htm EX-4.6 7341
3 EX-10.32 exhibit1032-salexanderamen.htm EX-10.32 7142
4 EX-10.33 exhibit1033-rachidemployme.htm EX-10.33 175605
5 EX-10.35 exhibit1035-jvatermination.htm EX-10.35 58418
6 EX-21 biib-20231231xex21.htm EX-21 51774
7 EX-23 biib-20231231xex23.htm EX-23 2538
8 EX-31.1 biib-20231231xex311.htm EX-31.1 10930
9 EX-31.2 biib-20231231xex312.htm EX-31.2 10673
10 EX-32.1 biib-20231231xex321.htm EX-32.1 8845
11 EX-97.1 exhibit971-clawbackpolicy.htm EX-97.1 29247
17 biib-20231231_g1.jpg GRAPHIC 14533
18 biib-20231231_g10.jpg GRAPHIC 127907
19 biib-20231231_g11.jpg GRAPHIC 73467
20 biib-20231231_g12.jpg GRAPHIC 22513
21 biib-20231231_g13.jpg GRAPHIC 15572
22 biib-20231231_g14.jpg GRAPHIC 17062
23 biib-20231231_g15.jpg GRAPHIC 12986
24 biib-20231231_g16.jpg GRAPHIC 13199
25 biib-20231231_g17.jpg GRAPHIC 12208
26 biib-20231231_g18.jpg GRAPHIC 18739
27 biib-20231231_g19.jpg GRAPHIC 10352
28 biib-20231231_g2.jpg GRAPHIC 148428
29 biib-20231231_g20.jpg GRAPHIC 10791
30 biib-20231231_g21.jpg GRAPHIC 23004
31 biib-20231231_g22.jpg GRAPHIC 27865
32 biib-20231231_g23.jpg GRAPHIC 11887
33 biib-20231231_g24.jpg GRAPHIC 15675
34 biib-20231231_g25.jpg GRAPHIC 2905
35 biib-20231231_g26.jpg GRAPHIC 119238
36 biib-20231231_g27.jpg GRAPHIC 15392
37 biib-20231231_g28.jpg GRAPHIC 13010
38 biib-20231231_g29.jpg GRAPHIC 14788
39 biib-20231231_g3.jpg GRAPHIC 12294
40 biib-20231231_g30.jpg GRAPHIC 15999
41 biib-20231231_g31.jpg GRAPHIC 53586
42 biib-20231231_g32.jpg GRAPHIC 76568
43 biib-20231231_g33.jpg GRAPHIC 64690
44 biib-20231231_g34.jpg GRAPHIC 125307
45 biib-20231231_g4.jpg GRAPHIC 8296
46 biib-20231231_g5.jpg GRAPHIC 9588
47 biib-20231231_g6.jpg GRAPHIC 8254
48 biib-20231231_g7.jpg GRAPHIC 11034
49 biib-20231231_g8.jpg GRAPHIC 17632
50 biib-20231231_g9.jpg GRAPHIC 25230
51 image_0.jpg GRAPHIC 6901
52 image_0b.jpg GRAPHIC 5760
  Complete submission text file 0000875045-24-000009.txt   25789444

Data Files

Seq Description Document Type Size
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT biib-20231231.xsd EX-101.SCH 157237
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT biib-20231231_cal.xml EX-101.CAL 162918
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT biib-20231231_def.xml EX-101.DEF 1043197
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT biib-20231231_lab.xml EX-101.LAB 1664761
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT biib-20231231_pre.xml EX-101.PRE 1418012
218 EXTRACTED XBRL INSTANCE DOCUMENT biib-20231231_htm.xml XML 3854155
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.: 24630409
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)