# Filing Detail

Form PRE 14A - Other preliminary proxy statements:
SEC Accession No. 0001193125-24-094828
Filing Date
2024-04-12
Accepted
2024-04-12 17:01:17
Documents
65
Period of Report
2024-06-20

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | PRE 14A | d547371dpre14a.htm iXBRL | PRE 14A | 2059938
6 | GRAPHIC | g547371g00a07.jpg | GRAPHIC | 22052
7 | GRAPHIC | g547371g00a11.jpg | GRAPHIC | 27166
8 | GRAPHIC | g547371g00b07.jpg | GRAPHIC | 21381
9 | GRAPHIC | g547371g00k01.jpg | GRAPHIC | 55443
10 | GRAPHIC | g547371g00k02.jpg | GRAPHIC | 48868
11 | GRAPHIC | g547371g00k03.jpg | GRAPHIC | 53137
12 | GRAPHIC | g547371g00k04.jpg | GRAPHIC | 58252
13 | GRAPHIC | g547371g00s01.jpg | GRAPHIC | 610051
14 | GRAPHIC | g547371g00s02.jpg | GRAPHIC | 50879
15 | GRAPHIC | g547371g00s03.jpg | GRAPHIC | 608869
16 | GRAPHIC | g547371g00s04.jpg | GRAPHIC | 52808
17 | GRAPHIC | g547371g00s05.jpg | GRAPHIC | 50875
18 | GRAPHIC | g547371g00s07.jpg | GRAPHIC | 47548
19 | GRAPHIC | g547371g00s08.jpg | GRAPHIC | 49488
20 | GRAPHIC | g547371g00s09.jpg | GRAPHIC | 49957
21 | GRAPHIC | g547371g00s13.jpg | GRAPHIC | 594
22 | GRAPHIC | g547371g00s14.jpg | GRAPHIC | 612
23 | GRAPHIC | g547371g00s15.jpg | GRAPHIC | 618
24 | GRAPHIC | g547371g00s16.jpg | GRAPHIC | 591
25 | GRAPHIC | g547371g00u01.jpg | GRAPHIC | 172668
26 | GRAPHIC | g547371g00u02.jpg | GRAPHIC | 169862
27 | GRAPHIC | g547371g01a01.jpg | GRAPHIC | 53624
28 | GRAPHIC | g547371g01n32.jpg | GRAPHIC | 110019
29 | GRAPHIC | g547371g02a02.jpg | GRAPHIC | 36107
30 | GRAPHIC | g547371g07s08.jpg | GRAPHIC | 45607
31 | GRAPHIC | g547371g08a09.jpg | GRAPHIC | 24573
32 | GRAPHIC | g547371g11m11.jpg | GRAPHIC | 58573
33 | GRAPHIC | g547371g11m12.jpg | GRAPHIC | 83085
34 | GRAPHIC | g547371g11m14.jpg | GRAPHIC | 86816
35 | GRAPHIC | g547371g17a01.jpg | GRAPHIC | 16410
36 | GRAPHIC | g547371g17a02.jpg | GRAPHIC | 16435
37 | GRAPHIC | g547371g17a03.jpg | GRAPHIC | 18495
38 | GRAPHIC | g547371g17a04.jpg | GRAPHIC | 16878
39 | GRAPHIC | g547371g17a05.jpg | GRAPHIC | 17604
40 | GRAPHIC | g547371g17a06.jpg | GRAPHIC | 20993
41 | GRAPHIC | g547371g17a07.jpg | GRAPHIC | 19943
42 | GRAPHIC | g547371g17a08.jpg | GRAPHIC | 18440
43 | GRAPHIC | g547371g17a09.jpg | GRAPHIC | 21227
44 | GRAPHIC | g547371g25a01.jpg | GRAPHIC | 39076
45 | GRAPHIC | g547371g25a02.jpg | GRAPHIC | 37088
46 | GRAPHIC | g547371g25a03.jpg | GRAPHIC | 40591
47 | GRAPHIC | g547371g25a05.jpg | GRAPHIC | 42046
48 | GRAPHIC | g547371g30s11.jpg | GRAPHIC | 65942
49 | GRAPHIC | g547371g34s03.jpg | GRAPHIC | 67342
50 | GRAPHIC | g547371g41k61.jpg | GRAPHIC | 38185
51 | GRAPHIC | g547371g46a01.jpg | GRAPHIC | 111697
52 | GRAPHIC | g547371g46c03.jpg | GRAPHIC | 107102
53 | GRAPHIC | g547371g48a01.jpg | GRAPHIC | 25801
54 | GRAPHIC | g547371g53u59.jpg | GRAPHIC | 37638
55 | GRAPHIC | g547371g80k00.jpg | GRAPHIC | 61592
| Complete submission text file | 0001193125-24-094828.txt |  | 10698199

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
2 | XBRL TAXONOMY EXTENSION SCHEMA | biib-20231231.xsd | EX-101.SCH | 4957
3 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | biib-20231231_def.xml | EX-101.DEF | 5126
4 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | biib-20231231_lab.xml | EX-101.LAB | 6553
5 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | biib-20231231_pre.xml | EX-101.PRE | 4274
68 | EXTRACTED XBRL INSTANCE DOCUMENT | d547371dpre14a_htm.xml | XML | 256141

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)

EIN.: 330112644 | State of Incorp.: DE | Fiscal Year End: 1231
Type: PRE 14A | Act: 34 | File No.: 000-19311 | Film No.: 24842213
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)