NASDAQ·Biological Products, (No Diagnostic Substances)

BIIBBIOGEN INC.

Last filing: 8-K·May 14, 2026EDGAR ↗

BIIB SEC Filings

Full cached SEC EDGAR filing history for BIIB, grouped by form type and sorted newest-first within each group. 15 filings across 3 form types.

10-K

5 filings

Feb 6, 20260000875045-26-000013structured →EDGAR ↗
Feb 12, 20250000875045-25-000009structured →EDGAR ↗
Feb 14, 20240000875045-24-000009structured →EDGAR ↗
Feb 15, 20230000875045-23-000009structured →EDGAR ↗
Feb 3, 20220000875045-22-000007structured →EDGAR ↗

10-Q

5 filings

Apr 29, 20260000875045-26-000045structured →EDGAR ↗
Oct 30, 20250000875045-25-000049structured →EDGAR ↗
Jul 31, 20250000875045-25-000033structured →EDGAR ↗
May 1, 20250000875045-25-000018structured →EDGAR ↗
Oct 30, 20240000875045-24-000032structured →EDGAR ↗

8-K

5 filings

May 14, 20260001193125-26-222908structured →EDGAR ↗
Apr 29, 20260000875045-26-000042structured →EDGAR ↗
Apr 6, 20260000875045-26-000039structured →EDGAR ↗
Mar 31, 20260001193125-26-134889structured →EDGAR ↗
Mar 11, 20260000950157-26-000280structured →EDGAR ↗

Filings sourced verbatim from SEC EDGAR submissions metadata. “Structured” links route to DredgeCap's per-filing renderer (XBRL-backed financials + cited highlights) when available; the EDGAR link always points to the canonical accession index on sec.gov.