Chirfi Guindo

Business address
C/O Biogen Inc., 225 Binney St., Cambridge, MA, 02142
Top holdings (ownership)
MRK, BIIB, and BEAM
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Chirfi Guindo has filed 28 SEC EDGAR filings since 16 Nov 2017

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2025 04 Aug 2025 001-06571
4 Open Document Open Filing 4 06 Jun 2025 04 Jun 2025 001-39208
4 Open Document Open Filing PRIMARY DOCUMENT 01 May 2025 29 Apr 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2025 27 Jan 2025 001-06571
4 Open Document Open Filing 4 04 Dec 2024 02 Dec 2024 001-39208
3 Open Document Open Filing 3 04 Dec 2024 02 Dec 2024 001-39208
4 Open Document Open Filing PRIMARY DOCUMENT 06 Aug 2024 05 Aug 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 04 Aug 2023 03 Aug 2023 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 04 May 2023 02 May 2023 001-06571
3/A Open Document Open Filing PRIMARY DOCUMENT 28 Apr 2023 01 Jul 2022 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 04 Aug 2022 03 Aug 2022 001-06571
3 Open Document Open Filing PRIMARY DOCUMENT 08 Jul 2022 01 Jul 2022 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 23 Feb 2022 18 Feb 2022 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2022 12 Feb 2022 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2022 10 Feb 2022 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 21 Jan 2022 19 Jan 2022 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 09 Jun 2021 07 Jun 2021 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 22 Feb 2021 18 Feb 2021 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 17 Feb 2021 12 Feb 2021 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 03 Dec 2020 01 Dec 2020 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2020 12 Feb 2020 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 03 Dec 2019 01 Dec 2019 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2019 12 Feb 2019 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2018 01 Dec 2018 000-19311
4/A Open Document Open Filing PRIMARY DOCUMENT 08 Jan 2018 01 Dec 2017 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 05 Dec 2017 01 Dec 2017 000-19311
3 Open Document Open Filing PRIMARY DOCUMENT 16 Nov 2017 07 Nov 2017 000-19311