The page is the record's research on the issuer — no analyst, no rating, no view. # IONIS PHARMACEUTICALS INC (NASDAQ: IONS) — research page As of 2026-11-08 · us-cm-kg · record version 1 ## Identity and listing The issuer is IONIS PHARMACEUTICALS INC, listed on NASDAQ under ticker IONS, with ISIN US4622221004 and LEI 549300SI4ZGLG0BLUZ92. Its security type is Corporate and its sector is 2834 Pharmaceutical Preparations. Its jurisdiction is United States, California, and its segment is not on the record. Its listing status is listed, not halted. ## The disclosure read The record holds 201 filings in the twelve months to 2026-11-08, across 81 filing days. The median gap between filing days is 2.5 days. The latest filing is dated 2026-10-23, 16 days before the record date, and its type is corporate_news. The exchange median is 52 filings, a cadence gap of 6.0 days and a latency of 5.0 days, across 4359 issuers. The sector median is 63.0 filings, a cadence gap of 6.0 days and a latency of 4.0 days, across 526 issuers. ## Auditor The auditor of record is Ernst & Young LLP, located in San Diego, California. 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, since EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, since the exchanges' tier transfers are not EDGAR filings. The halt flag reads listed, not halted. ## Orderability The outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04. ## Coverage No research houses were found on the issuer's investor-relations pages read. The count is 0. ## Open research No openly published research notes were found on the record. 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 2021, 2022, 2023, 2024, 2025 and 2026 for the issuer. The market's earliest sealed date is 2021-01-04, and the live record began on 2026-09-12. ## Sources 9 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/CIK0000874015.json (identity.jurisdiction) - https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei) - https://mcp.us-cm-kg.ai/events/NASDAQ/IONS (the disclosure lines) - https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag) - https://www.sec.gov/Archives/edgar/data/874015/000087401526000115/form10k.htm (the auditor) - https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter) - https://mcp.us-cm-kg.ai/record/NASDAQ/IONS (the record) --- Allooloo Technologies Corp. · https://getresearch.ai/us/NASDAQ/IONS · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp