The page is the record's research on the issuer — no analyst, no rating, no view.

# BIOGEN INC. (NASDAQ: BIIB) — research page

As of 2026-11-08 · us-cm-kg · record version 1

## Identity and listing

The issuer is BIOGEN INC., listed on NASDAQ under ticker BIIB, with ISIN US09062X1037 and LEI W8J5WZB5IY3K0NDQT671. Its security type is Corporate, its segment is not on the record, its sector is 2836 Biological Products, (No Diagnostic Substances), and its jurisdiction is United States — Delaware. Its listing status is listed, not halted.

## The disclosure read

The record holds 81 filings in the twelve months to 2026-11-08, on 39 filing days. The median gap between filing days is 5.0 days, against a NASDAQ median of 6.0 days and a sector median of 5.5 days. The latest filing is dated 2026-11-02, six days before the record date, and its type is directors_dealings. The NASDAQ median latency is 5.0 days and the sector median latency is 4.0 days. The issuer's filing count is above the NASDAQ median of 52 and below the sector median of 65.5.

## Auditor

The auditor of record is not on the record, as the latest annual report cover carries no dei:AuditorName tag. The auditor's location is not on the record. The record holds no auditor changes.

## Events and halts

The record holds no listing, delisting or name change lines. The domicile change is not on the record, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as the exchanges' tier transfers are not EDGAR filings. The halt flag is listed, not halted.

## Orderability

The outcome is not determinable under rule version acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, as the chapter's orderability section carries no client categories and so the outcome cannot name its client category. The chapter is as of 2026-11-04.

## Coverage

No research houses were found on the issuer's investor-relations page, and the count is 0.

## Open research

No openly published research notes were found on the record, and the count is 0.

## Licensed

Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.

## As-of depth

The record holds sealed years for the issuer of 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12.

## Sources

8 source pages are named on this page; every value above carries its own source page and read date in the numbers.

- https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)
- https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)
- https://data.sec.gov/submissions/CIK0000875045.json (identity.jurisdiction)
- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)
- https://mcp.us-cm-kg.ai/events/NASDAQ/BIIB (the disclosure lines)
- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)
- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)
- https://mcp.us-cm-kg.ai/record/NASDAQ/BIIB (the record)

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