28 results
10-K
2023 FY
EX-4.6
BIIB
Biogen Inc
Annual report
13 Feb 24
5:40pm
10-K
2021 FY
EX-4.8
BIIB
Biogen Inc
Annual report
3 Feb 22
5:24pm
8-K
EX-4.3
BIIB
Biogen Inc
16 Feb 21
Other Events
12:00am
8-K
EX-4.4
BIIB
Biogen Inc
16 Feb 21
Other Events
12:00am
8-K
EX-4.2
BIIB
Biogen Inc
16 Feb 21
Other Events
12:00am
8-K
EX-4.5
xaje jbzzlt
16 Feb 21
Other Events
12:00am
8-K
EX-4.2
zu5i70 pn9ry4
30 Apr 20
Other Events
4:22pm
8-K
EX-4.2
801cow6jmot
16 Sep 15
Other Events
12:00am
8-K
EX-4.1
jec pcdodadf3c7zxo
16 Sep 15
Other Events
12:00am
S-3ASR
EX-4.1
6z4dbv
8 Sep 15
Automatic shelf registration
12:00am
8-K
EX-4.1
6b4 dzrbpud0u
16 Jan 09
Material Modifications to Rights of Security Holders
12:00am
8-K
EX-4.1
d0zm3z6y
4 Mar 08
Other Events
12:00am
S-3ASR
EX-4.1
tk06wz
26 Feb 08
Automatic shelf registration
12:00am
8-K
EX-4.1
nqdvrebcqyi2mu4p
23 Jun 03
Other events
12:00am