BIIB - Company ID 0000875045
BIOGEN INC. has filed 2,690 public company documents between 1996 and 2026. The most frequent type is insider trade (1,544 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| S-8 | Employee stock plan | 2y ago2024-06-20 | - | View filing |
| S-8 | Employee stock plan | 9y ago2017-06-16 | - | View filing |
| S-8 | Employee stock plan | 11y ago2015-06-26 | - | View filing |
| S-8 | Employee stock plan | 15y ago2010-10-26 | - | View filing |
| S-8 | Employee stock plan | 17y ago2008-07-22 | - | View filing |
| S-8 | Employee stock plan | 19y ago2007-02-21 | - | View filing |
| S-8 | Employee stock plan | 20y ago2005-09-15 | - | View filing |
| S-8 | Employee stock plan | 22y ago2003-11-12 | - | View filing |
| S-8 | Employee stock plan | 22y ago2003-11-12 | - | View filing |
| S-8 | Employee stock plan | 23y ago2003-07-03 | - | View filing |
| S-8 | Employee stock plan | 23y ago2002-07-26 | - | View filing |
| S-8 | Employee stock plan | 24y ago2001-07-20 | - | View filing |
| S-8 | Employee stock plan | 25y ago2000-10-13 | - | View filing |
| S-8 | Employee stock plan | 27y ago1999-06-25 | - | View filing |
| S-8 | Employee stock plan | 27y ago1998-09-03 | - | View filing |
| S-8 | Employee stock plan | 29y ago1997-06-20 | - | View filing |
| S-8 | Employee stock plan | 30y ago1996-06-21 | - | View filing |