Year archive

BIOGEN INC. — 2026 filings

All 39 regulatory filings released by BIOGEN INC. (BIIB) in 2026, sourced directly from the official regulator.

39 Filings

2026 Period

2026 filings (39)

Filing	Released	Lang
8-K Regulatory Filings	2026-05-14	English
Major Shareholding Notification 2026 Major Shareholding Notification	2026-05-06	English
Major Shareholding Notification 2026 Major Shareholding Notification	2026-04-29	English
10-Q - BIOGEN INC. (0000875045) (Filer) Interim / Quarterly Report Q1 2026	2026-04-29	English
8-K - BIOGEN INC. (0000875045) (Filer) Regulatory Filings	2026-04-29	English
ARS Annual Report	2026-04-28	English
DEFA14A Proxy Solicitation & Information Statement	2026-04-28	English
DEF 14A Proxy Solicitation & Information Statement	2026-04-28	English
Major Shareholding Notification 2026 Major Shareholding Notification	2026-04-07	English
8-K - BIOGEN INC. (0000875045) (Filer) Regulatory Filings	2026-04-06	English
8-K - BIOGEN INC. (0000875045) (Filer) Regulatory Filings	2026-03-31	English
SCHEDULE 13G/A - BIOGEN INC. (0000875045) (Subject) Major Shareholding Notification	2026-03-26	English
CURRENT REPORT Regulatory Filings	2026-03-11	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-18	English
8-K Filing Regulatory Filings	2026-02-11	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-10	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-10	English
4 - BIOGEN INC. (0000875045) (Filer) Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
4 Filing Director's Dealing	2026-02-10	English
8-K Filing Regulatory Filings	2026-02-06	English
10-K Filing Annual Report FY 2025	2026-02-06	English
SCHEDULE 13G Filing Major Shareholding Notification	2026-02-05	English
4 Filing Director's Dealing	2026-02-03	English
8-K Filing Regulatory Filings	2026-01-14	English

Filings by year

2026 39 filings
2025 71 filings
2024 87 filings
2023 94 filings
2022 79 filings
2021 83 filings
2020 65 filings
2019 69 filings
2018 72 filings
2017 78 filings
2016 101 filings
2015 109 filings
2014 102 filings
2013 108 filings
2012 104 filings
2011 116 filings
2010 101 filings