BIOGEN INC. (BIIB) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2023-08-07
5:21 pm
Purchase
2023-07-2813DReata Pharmaceuticals, Inc.
RETA
BIOGEN INC.
BIIB
8,936,791
23.400%
8,936,791increase
(New Position)
Filing
History
2023-02-09
4:01 pm
Sale
2022-12-3113GBiogen Inc.
BIIB
PRIMECAP MANAGEMENT CO/CA/15,700,576
10.900%
-56,829decrease
(-0.36%)
Filing
History
2023-02-09
11:12 am
Purchase
2022-12-3013GBiogen Inc.
BIIB
The Vanguard Group11,976,623
8.320%
439,324increase
(+3.81%)
Filing
History
2023-01-24
1:56 pm
Purchase
2022-12-3113GBiogen Inc.
BIIB
BlackRock Inc.
BLK
14,260,137
9.900%
523,183increase
(+3.81%)
Filing
History
2022-03-07
2:51 pm
Unchanged
2021-12-3113GBiogen Inc.
BIIB
BlackRock Inc.
BLK
13,736,954
9.400%
0
(Unchanged)
Filing
History
2022-02-10
12:21 pm
Sale
2021-12-3113GBiogen Inc.
BIIB
PRIMECAP MANAGEMENT CO/CA/15,757,405
10.730%
-64,661decrease
(-0.41%)
Filing
History
2022-02-09
3:33 pm
Sale
2021-12-3113GBiogen Inc.
BIIB
The Vanguard Group11,537,299
7.850%
-359,211decrease
(-3.02%)
Filing
History
2022-02-08
5:05 pm
Purchase
2021-12-3113GBiogen Inc.
BIIB
BlackRock Inc.
BLK
13,736,954
9.400%
317,353increase
(+2.36%)
Filing
History
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