Company · IONS · CIK 874015

Ionis Pharmaceuticals Inc (IONS) SEC filings and CIK.

IONS’s SEC Central Index Key (CIK) is 0000874015, or 874015 without leading zeros. The SEC’s ticker file lists it as IONIS PHARMACEUTICALS INC.

Ticker: IONS
CIK: 0000874015
Other tickers: None
Insider transactions, Q3 2026: 17

Insider trading

In Q3 2026, insiders at Ionis Pharmaceuticals Inc reported 17 non-derivative transactions on 19 Forms 3, 4 and 5, including 2 open-market purchases and 6 sales. See every IONS insider transaction →

Recent filings we observed

From our record of EDGAR’s latest-filings feed and sampled daily indexes. Not a complete filing history; use the filings API for that.
Filed	Form	Accession
2026-11-09	10-Q	0000874015-26-000271
2026-11-09	8-K	0001140361-26-042598

Get IONS SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=874015&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/874015" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/874015?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Ionis Pharmaceuticals Inc on SEC.gov

Questions

What is IONS’s CIK number?

IONS’s SEC Central Index Key (CIK) is 0000874015, or 874015 without leading zeros. The SEC’s ticker file lists it as IONIS PHARMACEUTICALS INC.

How do I find Ionis Pharmaceuticals Inc’s 10-K?

Request /api/v1/filings?cik=874015&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/ions.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.