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BIOGEN INC. (BIIB) Create: Alert

All | News | Filings
Date FiledTypeDescription
02/09/2023 SC 13G/A PRIMECAP MANAGEMENT CO reports a 10.9% stake in Biogen Inc.
01/24/2023 SC 13G/A BlackRock Inc. reports a 9.9% stake in BIOGEN INC
03/07/2022 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/10/2022 SC 13G/A PRIMECAP MANAGEMENT CO reports a 10.7% stake in Biogen Inc.
02/09/2022 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/12/2021 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/10/2021 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
12/09/2020 SC 13G/A PRIMECAP MANAGEMENT CO reports a 10.3% stake in Biogen Inc.
02/12/2020 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/12/2020 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/11/2020 SC 13G/A BIOGEN INC. reports a 4.1% stake in Ionis Pharmaceuticals, Inc.
02/11/2020 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/05/2020 SC 13G/A BlackRock Inc. reports a 8.7% stake in BIOGEN INC
02/11/2019 SC 13G/A VANGUARD GROUP INC reports a 7.5% stake in Biogen Inc
02/08/2019 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/04/2019 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/08/2018 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
01/29/2018 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/14/2017 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
02/10/2017 SC 13G/A Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals [Amend]
01/19/2017 SC 13G/A BIOGEN INC. reports a 7.9% stake in BIOGEN INC.
02/12/2016 SC 13G/A Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend]
02/10/2016 SC 13G/A BIOGEN IDEC INC. reports a 5.9% stake in Biogen Inc
02/12/2013 SC 13G/A Capital Research Global Investors reports a 4.6% stake in Biogen Idec Inc.
02/14/2012 SC 13G/A Clearbridge Advisors, LLC reports a 4.9% stake in Biogen Idec Inc Address of issuers principal executive offices: 133 Boston Post Road Weston, MA 2493 United States Item 2a) Name of person filing: ClearBridge Advisors, LLC Item 2b) Address of principal business office: 620 8th Avenue New York, NY 10018 Item 2c) Citizenship: Delaware Limited Liability Corporation Item 2d)
02/13/2012 SC 13G/A BIOGEN IDEC INC. reports a 5.8% stake in Biogen Idec Inc.
02/13/2012 SC 13G/A BIOGEN IDEC INC. reports a 0% stake in Sunesis Pharmaceuticals, Inc.
02/13/2012 SC 13G/A BIOGEN IDEC INC. reports a 0% stake in Aveo Pharmaceuticals, Inc.
02/13/2012 SC 13G/A Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend]
02/13/2012 SC 13G/A BIOGEN IDEC INC. reports a 7.1% stake in BIOGEN IDEC INC
01/27/2012 SC 13G/A Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend]
11/03/2011 SC 13G/A Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend]
02/14/2011 SC 13G/A Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend]
02/14/2011 SC 13G/A BIOGEN IDEC INC. reports a 10.9% stake in Biogen IDEC Inc.
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