Logo
  • Home
  • AI Agent
  • Annotations
  • Watchlists
  • Files
  • Pricing and plans
  • BlogAboutContact us
    APIMCP
    Terms of servicePrivacy policy
  • Get the full experience

    We save the real magic for signed-in users.

Logo
BIIB US​

Biogen Inc.(BIIB US)

$250.69-3.151.24%Ext:$245.05-5.642.25%(Market Closed · 23:55:35 UTC)

Overview

ProfileEntity Structure

Documents

SEC Filings
CategorizedChronologicalBy Owner

SEC Filings

Financials(127)

Expand
  • 10-QQ2ended 30 Jun 202629 Jul
  • 10-QQ1ended 31 Mar 202629 Apr
  • 10-KFY 2025ended 31 Dec 20256 Feb
  • 10-QQ3ended 30 Sept 202530 Oct 2025
  • 10-QQ2ended 30 Jun 202531 Jul 2025
  • 10-QQ1ended 31 Mar 20251 May 2025
  • 10-KFY 2024ended 31 Dec 202412 Feb 2025
  • 10-QQ3ended 30 Sept 202430 Oct 2024
  • 10-QQ2ended 30 Jun 20241 Aug 2024
  • 10-QQ1ended 31 Mar 202424 Apr 2024
  • 10-KFY 2023ended 31 Dec 202314 Feb 2024
  • 10-QQ3ended 30 Sept 20238 Nov 2023
  • 10-QQ2ended 30 Jun 202325 Jul 2023
  • 10-QQ1ended 31 Mar 202325 Apr 2023
  • 10-KFY 2022ended 31 Dec 202215 Feb 2023

Events(297)

Expand
  • 8-KResults of Operations and Financial Condition29 Jul
  • 8-KResults of Operations and Financial Condition1 Jul
  • 8-KSubmission of Matters to a Vote of Security Holders10 Jun
  • 8-K/AFinancial Statements and Exhibits10 Jun
  • 8-KBiogen Completes Acquisition of Apellis Pharmaceuticals14 May
  • 8-KResults of Operations and Financial Condition29 Apr
  • 8-KResults of Operations and Financial Condition6 Apr
  • 8-KTENDER AND SUPPORT AGREEMENT31 Mar
  • 8-KDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers11 Mar
  • 8-KDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers11 Feb
  • 8-KResults of Operations and Financial Condition6 Feb
  • 8-KResults of Operations and Financial Condition13 Jan
  • 8-KResults of Operations and Financial Condition30 Oct 2025
  • 8-KResults of Operations and Financial Condition14 Oct 2025
  • 8-KResults of Operations and Financial Condition31 Jul 2025

Insider Ownership(1.7K)

Expand
  • 4Godbout Sean5 Oct
  • 4Parini Michael3 Sep
  • 3Parini Michael12 Aug
  • 4Minor Lloyd5 Aug
  • 4HAWKINS WILLIAM A11 Jun
  • 4SHERWIN STEPHEN A11 Jun
  • 4Rowinsky Eric K11 Jun
  • 4Mantas Jesus B11 Jun
  • 4LANGER SUSAN11 Jun
  • 4Patolawala Monish D11 Jun
  • 4Pangalos Menelas N11 Jun
  • 4Minor Lloyd11 Jun
  • 4Freire Maria C11 Jun
  • 4Keeney Adam5 May
  • 3BIOGEN INC.6 Apr

Beneficial Ownership(205)

Expand
  • SC 13G/ABIOGEN INC.6 Aug
  • SC 13G/ABIOGEN INC.5 Jun
  • SC 13D/AApellis Pharmaceuticals, Inc.14 May
  • SC 13G/ABIOGEN INC.6 May
  • SC 13GBIOGEN INC.29 Apr
  • SC 13DApellis Pharmaceuticals, Inc.6 Apr
  • SC 13G/ABIOGEN INC.26 Mar
  • SC 13GBIOGEN INC.5 Feb
  • SC 13G/ABIOGEN INC.13 Nov 2025
  • SC 13GBIOGEN INC.10 Nov 2025
  • SC 13D/ASage Therapeutics, Inc.30 Jul 2025
  • SC 13D/ASage Therapeutics, Inc.21 Jul 2025
  • SC 13G/ABIOGEN INC.17 Apr 2025
  • SC 13DSage Therapeutics, Inc.10 Jan 2025
  • SC 13G/ABIOGEN INC.12 Nov 2024

Other Ownership(22)

Expand
  • 144Minor Lloyd4 Aug
  • 144Minor Lloyd3 Aug
  • 144Singhal Priya9 Feb
  • 144Singhal Priya2 Feb
  • 144Singhal Priya2 Sep 2025
  • 144Izzar Rachid8 Jul 2025
  • 144Singhal Priya19 May 2025
  • 144SHERWIN STEPHEN A7 Mar 2025
  • 144Singhal Priya9 Dec 2024
  • 144Singhal Priya3 Sep 2024
  • 144Singhal Priya2 Apr 2024
  • 144Singhal Priya22 Feb 2024
  • 144Singhal Priya21 Feb 2024
  • 144Singhal Priya12 Feb 2024
  • 144Singhal Priya2 Feb 2024

Proxies(167)

Expand
  • ARSAnnual report to security holders28 Apr
  • DEFA14ADefinitive additional materials28 Apr
  • DEF 14ADefinitive proxy statement28 Apr
  • DEFA14ADefinitive additional materials2 Jun 2025
  • DEFA14ADefinitive additional materials28 Apr 2025
  • DEF 14ADefinitive proxy statement28 Apr 2025
  • ARSAnnual report to security holders28 Apr 2025
  • DEF 14ADefinitive proxy statement26 Apr 2024
  • DEFA14ADefinitive additional materials26 Apr 2024
  • ARSAnnual report to security holders26 Apr 2024
  • PRE 14APreliminary proxy statement12 Apr 2024
  • DEFA14ADefinitive additional materials31 Jul 2023
  • DEFA14ADefinitive additional materials28 Jul 2023
  • DEFA14ADefinitive additional materials13 Jun 2023
  • DEFR14ADefinitive revised proxy statement13 Jun 2023

Registrations(98)

Expand
  • 424B2Prospectus filing (Rule 424(b)(2))8 May 2025
  • 424B2Prospectus filing (Rule 424(b)(2))6 May 2025
  • FWPFree writing prospectus6 May 2025
  • S-3ASRAutomatic shelf registration statement (S-3)1 May 2025
  • S-8Registration statement (employee benefit plan)20 Jun 2024
  • POS AMPost-effective amendment (unspecified)6 Jul 2022
  • 424B3Prospectus filing (Rule 424(b)(3))26 May 2022
  • S-4Registration statement (business combination)17 May 2022
  • 424B2Prospectus filing (Rule 424(b)(2))27 Apr 2020
  • S-3ASRAutomatic shelf registration statement (S-3)24 Apr 2020
  • S-8Registration statement (employee benefit plan)16 Jun 2017
  • FWPFree writing prospectus11 Sep 2015
  • 424B2424(B)(2)11 Sep 2015
  • 424B2Prospectus filing (Rule 424(b)(2))10 Sep 2015
  • S-3ASRAutomatic shelf registration statement (S-3)8 Sep 2015

Filing Review Correspondence(15)

Expand
  • CORRESPFiling review correspondence24 May 2022
  • CORRESPFiling review correspondence21 Jun 2021
  • CORRESPFiling review correspondence9 Jun 2021
  • CORRESPFiling review correspondence7 Apr 2021
  • CORRESPFiling review correspondence28 Jun 2018
  • CORRESPFiling review correspondence10 May 2017
  • CORRESPFiling review correspondence4 Apr 2017
  • UPLOADFiling review upload22 Apr 2009
  • UPLOADFiling review upload17 Apr 2009
  • UPLOADFiling review upload10 Apr 2009
  • UPLOADFiling review upload28 Apr 2008
  • UPLOADFiling review upload28 Apr 2008
  • CORRESPFiling review correspondence2 Apr 2008
  • UPLOADFiling review upload22 Mar 2008
  • UPLOADFiling review upload17 Jan 2007

SEC Orders And Notices(5)

Expand
  • EFFECTNotice of effectiveness12 Jul 2022
  • EFFECTNotice of effectiveness26 May 2022
  • CT ORDERConfidential treatment order29 Mar 2016
  • CT ORDERConfidential treatment order29 Apr 2013
  • CT ORDERConfidential treatment order15 Mar 2011

Tender Offers And Going Private(21)

Expand
  • SC TO-T/ATender offer statement (third-party, amendment)14 May
  • SC TO-T/AAMENDMENT NO. 212 May
  • SC TO-T/AAMENDMENT NO. 16 May
  • SC TO-TTender offer statement (third-party)14 Apr
  • SC TO-CSCHEDULE TO7 Apr
  • SC TO-CSCHEDULE TO3 Apr
  • SC TO-CTender offer statement (communication)31 Mar
  • SC TO-CSCHEDULE TO31 Mar
  • SC TO-T/ATender offer statement (third-party, amendment)17 Dec 2009
  • SC TO-T/ATender offer statement (third-party, amendment)15 Dec 2009
  • SC TO-T/ATender offer statement (third-party, amendment)11 Dec 2009
  • SC TO-T/ATender offer statement (third-party, amendment)3 Dec 2009
  • SC TO-T/ATender offer statement (third-party, amendment)16 Oct 2009
  • SC TO-T/ATender offer statement (third-party, amendment)7 Oct 2009
  • SC TO-T/ABIOGEN IDEC INC.22 Sep 2009

Other(9)

Expand
  • NO ACTAUTO-GENERATED PAPER DOCUMENT23 Feb 2017
  • NO ACTAUTO-GENERATED PAPER DOCUMENT13 Mar 2012
  • PRES14APRES14A21 Oct 1999
  • 10-K40510-K40531 Mar 1999
  • 10-K405/A10-K405/A3 Mar 1998
  • 10-K40510-K40527 Feb 1998
  • 8-B12G8-B12G2 Jun 1997
  • 10-K40510-K40531 Mar 1997
  • 10-C10-C21 Jun 1996

Financials & Metrics

FinancialsChartingShort InterestEmployees