https://www.developersdigest.tech/markets/biib/filings Latest company filings for BIOGEN INC. (BIIB) - annual reports, quarterly reports, major events, and insider trades, newest first. en Fri, 10 Jul 2026 07:49:13 GMT https://www.sec.gov/Archives/edgar/data/875045/000119312526222908/d109852d8k.htm 0001193125-26-222908 Thu, 14 May 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000119312526222837/d26694dsctota.htm 0001193125-26-222837 Thu, 14 May 2026 12:00:00 GMT SC TO-T/A https://www.sec.gov/Archives/edgar/data/875045/000095015726000611/xslSCHEDULE_13D_X02/primary_doc.xml 0000950157-26-000611 Thu, 14 May 2026 12:00:00 GMT SCHEDULE 13D/A https://www.sec.gov/Archives/edgar/data/875045/000095015726000594/sctota.htm 0000950157-26-000594 Tue, 12 May 2026 12:00:00 GMT SC TO-T/A https://www.sec.gov/Archives/edgar/data/875045/000095015726000582/sctota.htm 0000950157-26-000582 Wed, 06 May 2026 12:00:00 GMT SC TO-T/A https://www.sec.gov/Archives/edgar/data/875045/000031506626001103/xslSCHEDULE_13G_X02/primary_doc.xml 0000315066-26-001103 Wed, 06 May 2026 12:00:00 GMT SCHEDULE 13G/A https://www.sec.gov/Archives/edgar/data/875045/000087504526000046/xslF345X06/form4.xml 0000875045-26-000046 Tue, 05 May 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000210011926000210/xslSCHEDULE_13G_X02/primary_doc.xml 0002100119-26-000210 Wed, 29 Apr 2026 12:00:00 GMT SCHEDULE 13G https://www.sec.gov/Archives/edgar/data/875045/000087504526000045/biib-20260331.htm 0000875045-26-000045 Wed, 29 Apr 2026 12:00:00 GMT 10-Q https://www.sec.gov/Archives/edgar/data/875045/000087504526000042/biib-20260429.htm 0000875045-26-000042 Wed, 29 Apr 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000119312526187407/d173896dars.pdf 0001193125-26-187407 Tue, 28 Apr 2026 12:00:00 GMT ARS https://www.sec.gov/Archives/edgar/data/875045/000119312526187383/d788083ddefa14a.htm 0001193125-26-187383 Tue, 28 Apr 2026 12:00:00 GMT DEFA14A https://www.sec.gov/Archives/edgar/data/875045/000119312526187303/d788083ddef14a.htm 0001193125-26-187303 Tue, 28 Apr 2026 12:00:00 GMT DEF 14A https://www.sec.gov/Archives/edgar/data/875045/000119312526153814/d119834dsctot.htm 0001193125-26-153814 Tue, 14 Apr 2026 12:00:00 GMT SC TO-T https://www.sec.gov/Archives/edgar/data/875045/000095015726000483/sctoc.htm 0000950157-26-000483 Tue, 07 Apr 2026 12:00:00 GMT SC TO-C https://www.sec.gov/Archives/edgar/data/875045/000095015726000479/xslF345X06/form3.xml 0000950157-26-000479 Mon, 06 Apr 2026 12:00:00 GMT 3 https://www.sec.gov/Archives/edgar/data/875045/000095015726000478/xslSCHEDULE_13D_X02/primary_doc.xml 0000950157-26-000478 Mon, 06 Apr 2026 12:00:00 GMT SCHEDULE 13D https://www.sec.gov/Archives/edgar/data/875045/000087504526000039/biib-20260406.htm 0000875045-26-000039 Mon, 06 Apr 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000095015726000473/sctoc.htm 0000950157-26-000473 Fri, 03 Apr 2026 12:00:00 GMT SC TO-C https://www.sec.gov/Archives/edgar/data/875045/000087504526000036/xslF345X06/form4.xml 0000875045-26-000036 Fri, 03 Apr 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000119312526134910/d14986dsctoc.htm 0001193125-26-134910 Tue, 31 Mar 2026 12:00:00 GMT SC TO-C https://www.sec.gov/Archives/edgar/data/875045/000119312526134889/d14986d8k.htm 0001193125-26-134889 Tue, 31 Mar 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000095015726000452/sctoc.htm 0000950157-26-000452 Tue, 31 Mar 2026 12:00:00 GMT SC TO-C https://www.sec.gov/Archives/edgar/data/875045/000010290926000745/xslSCHEDULE_13G_X02/primary_doc.xml 0000102909-26-000745 Thu, 26 Mar 2026 12:00:00 GMT SCHEDULE 13G/A https://www.sec.gov/Archives/edgar/data/875045/000095015726000280/form8-k.htm 0000950157-26-000280 Wed, 11 Mar 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000087504526000035/xslF345X05/form4.xml 0000875045-26-000035 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000034/xslF345X05/form4.xml 0000875045-26-000034 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000033/xslF345X05/form4.xml 0000875045-26-000033 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000032/xslF345X05/form4.xml 0000875045-26-000032 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000031/xslF345X05/form4.xml 0000875045-26-000031 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000030/xslF345X05/form4.xml 0000875045-26-000030 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000029/xslF345X05/form4.xml 0000875045-26-000029 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000028/xslF345X05/form4.xml 0000875045-26-000028 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000027/xslF345X05/form4.xml 0000875045-26-000027 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000026/xslF345X05/form4.xml 0000875045-26-000026 Tue, 17 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000119312526046803/d937279d8k.htm 0001193125-26-046803 Wed, 11 Feb 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000087504526000024/xslF345X05/form4.xml 0000875045-26-000024 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000023/xslF345X05/form4.xml 0000875045-26-000023 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000022/xslF345X05/form4.xml 0000875045-26-000022 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000021/xslF345X05/form4.xml 0000875045-26-000021 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000020/xslF345X05/form4.xml 0000875045-26-000020 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000019/xslF345X05/form4.xml 0000875045-26-000019 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000018/xslF345X05/form4.xml 0000875045-26-000018 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000017/xslF345X05/form4.xml 0000875045-26-000017 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000016/xslF345X05/form4.xml 0000875045-26-000016 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000087504526000015/xslF345X05/form4.xml 0000875045-26-000015 Tue, 10 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/875045/000195917326000739/xsl144X01/primary_doc.xml 0001959173-26-000739 Mon, 09 Feb 2026 12:00:00 GMT 144 https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231.htm 0000875045-26-000013 Fri, 06 Feb 2026 12:00:00 GMT 10-K https://www.sec.gov/Archives/edgar/data/875045/000087504526000011/biib-20260206.htm 0000875045-26-000011 Fri, 06 Feb 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/875045/000031506626000383/xslSCHEDULE_13G_X01/primary_doc.xml 0000315066-26-000383 Thu, 05 Feb 2026 12:00:00 GMT SCHEDULE 13G