IONS - CIK 0000874015
IONIS PHARMACEUTICALS INC has filed 2,623 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (1,423 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Prospectus supplement | 424B2 | 2000-11-08 | - |
| Prospectus supplement | 424B2 | 2000-10-06 | - |
| Quarterly report (amended) | 10-Q/A | 2000-08-29 | 2000-06-30 |
| S-3/A | - | 2000-08-25 | - |
| Quarterly report | 10-Q | 2000-08-14 | 2000-06-30 |
| Activist ownership stake (update) | SC 13D/A | 2000-07-14 | - |
| Passive ownership stake | SC 13G | 2000-07-11 | - |
| Employee stock plan | S-8 | 2000-06-28 | - |
| Prospectus supplement | 424B2 | 2000-06-14 | - |
| Prospectus supplement | 424B2 | 2000-06-14 | - |
| Activist ownership stake (update) | SC 13D/A | 2000-06-12 | - |
| Securities registration | S-3 | 2000-06-08 | - |
| Passive ownership stake | SC 13G | 2000-05-26 | - |
| Quarterly report | 10-Q | 2000-05-12 | 2000-03-31 |
| Prospectus supplement | 424B2 | 2000-05-10 | - |
| Annual report to shareholders | ARS | 2000-04-24 | 1999-12-31 |
| Proxy statement | DEF 14A | 2000-04-21 | 2000-06-08 |
| Prospectus supplement | 424B2 | 2000-04-10 | - |
| 10-K405 | - | 2000-03-28 | 1999-12-31 |
| Prospectus supplement | 424B2 | 2000-03-10 | - |
| POS AM | - | 2000-03-08 | - |
| Prospectus supplement | 424B2 | 2000-03-07 | - |
| Passive ownership stake (update) | SC 13G/A | 2000-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2000-02-11 | - |
| Prospectus supplement | 424B2 | 2000-02-03 | - |
| Major company event | 8-K | 2000-01-28 | 2000-01-14 |
| S-3/A | - | 1999-11-22 | - |
| Prospectus supplement | 424B2 | 1999-11-22 | - |
| Quarterly report | 10-Q | 1999-11-12 | 1999-09-30 |
| Securities registration | S-3 | 1999-11-12 | - |
| Prospectus supplement | 424B2 | 1999-11-08 | - |
| Prospectus supplement | 424B2 | 1999-10-01 | - |
| Major company event | 8-K | 1999-09-02 | 1999-08-31 |
| Activist ownership stake (update) | SC 13D/A | 1999-09-02 | - |
| Prospectus supplement | 424B2 | 1999-08-19 | - |
| Quarterly report | 10-Q | 1999-08-13 | 1999-06-30 |
| Prospectus supplement | 424B2 | 1999-07-19 | - |
| Major company event (amended) | 8-K/A | 1999-06-16 | 1999-04-20 |
| 10-K405/A | - | 1999-06-14 | 1998-12-31 |
| S-3/A | - | 1999-06-08 | - |
| 10-K405/A | - | 1999-06-08 | 1998-12-31 |
| Major company event (amended) | 8-K/A | 1999-06-08 | 1999-04-20 |
| S-3/A | - | 1999-06-04 | - |
| Quarterly report | 10-Q | 1999-05-14 | 1999-03-31 |
| S-3/A | - | 1999-05-10 | - |
| Major company event | 8-K | 1999-05-03 | 1999-04-20 |
| Proxy statement | DEF 14A | 1999-04-09 | 1999-05-21 |
| 10-K405 | - | 1999-03-31 | 1998-12-31 |
| S-3/A | - | 1999-03-31 | - |
| S-3/A | - | 1999-02-18 | - |