Ionis Pharmaceuticals Inc SEC filings IONS
Ionis Pharmaceuticals Inc has 1,005 filings in SEC EDGAR's recent list, going back to Jul 6, 2020. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Jul 29, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 23, 2026 (regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Apr 23, 2026 | — |
| DEF 14A | Proxy statement | Apr 23, 2026 | Jun 4, 2026 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 5, 2025 |
| DEFA14A | Additional proxy material | Apr 25, 2024 | — |
| DEF 14A | Proxy statement | Apr 25, 2024 | Jun 6, 2024 |
| DEFA14A | Additional proxy material | Apr 20, 2023 | — |
| DEF 14A | Proxy statement | Apr 20, 2023 | — |
| DEFA14A | Additional proxy material | Apr 20, 2022 | — |
| DEF 14A | Proxy statement | Apr 20, 2022 | Jun 2, 2022 |
| DEFA14A | Additional proxy material | May 20, 2021 | — |
| DEFA14A | Additional proxy material | Apr 23, 2021 | — |
| DEF 14A | Proxy statement | Apr 23, 2021 | Jun 2, 2021 |
Showing 13 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- IONS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- CA
- Headquarters
- Carlsbad, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 874015
- Former names
- ISIS PHARMACEUTICALS INC (until Dec 18, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.