BIIB — BIOGEN INC. (CIK 875045)

Recent SEC filings for BIOGEN INC. (BIIB), with body-text classification on 8-Ks, activist tagging on 13D/G filings, and ATM offering detection on S-3/424B5.

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Recent 8-K filings (4)

8-K · 20260429T16:00:00-05:00 · accession 0000875045-26-000042

BIOGEN INC.

item 2.02 item 9.01

8-K · 2026-06-10T16:54:22-04:00 · accession 0000950157-26-000700

BIOGEN INC.

item 5.07

8-K · 2026-06-10T16:49:37-04:00 · accession 0000950157-26-000699

BIOGEN INC.

item 9.01

8-K · 2026-05-14T08:31:16-04:00 · accession 0001193125-26-222908

BIOGEN INC.

item 1.01 item 2.01 item 2.03 item 7.01 BURIED EVENT

reported 2.01, body suggests 1.01

Schedule 13D / 13G (0)

No Schedule 13D / 13G filings in our archive yet.

ATM offerings (S-3 / 424B5) (0)

No ATM offering filings in our archive yet.

Track BIIB via API

curl -H "X-API-Key: ff_live_..." \
  "https://filingfirehose.com/v1/filings/8-k?cik=875045&limit=10"

Returns parsed records with body-text item detection, activist filer tags, ATM detection, and webhook delivery on the Pro tier.

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