# Ionis Pharmaceuticals Inc: filings

IONS · Nasdaq · CIK 874015 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/ions.md) · [Financials](/companies/ions/financials.md) · [Filings](/companies/ions/filings.md) · [Insiders](/companies/ions/insiders.md)

## Reports and events: 346 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 1182, 8-K 236, 144 187, SC 13G/A 86, CT ORDER 71, 10-Q 53, 144/A 26, 4/A 25, 3 24, 10-K 18, DEF 14A 18, DEFA14A 18, SC 13G 17, S-8 15, ARS 11, SCHEDULE 13G/A 10, SC 13D/A 9, 8-K/A 8, UPLOAD 7, CORRESP 6, SC TO-T/A 5, 424B5 4, 5 4, S-3ASR 4, 3/A 3, SC TO-C 3, 10-Q/A 2, SC 13D 2, SCHEDULE 13G 2, 424B7 1, D 1, PRE 14A 1, SC TO-T 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-23 | 13:41 ET | [8-K](/filings/0001140361-26-040631.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-040631 |
| 2026-10-21 | 20:15 ET | [8-K](/filings/0001140361-26-040388.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-040388 |
| 2026-09-23 | 10:03 ET | [8-K](/filings/0001140361-26-037371.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-037371 |
| 2026-09-04 | 21:00 ET | [8-K](/filings/0001140361-26-035802.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-035802 |
| 2026-09-04 | 10:01 ET | [8-K](/filings/0001140361-26-035657.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-035657 |
| 2026-07-29 | 21:05 ET | [10-Q](/filings/0000874015-26-000251.md) | Quarterly report, period 2026-06-30 | 0000874015-26-000251 |
| 2026-07-29 | 11:31 ET | [8-K](/filings/0001140361-26-029960.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-26-029960 |
| 2026-07-10 | 01:03 ET | [8-K](/filings/0001140361-26-028154.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-26-028154 |
| 2026-07-09 | 18:55 ET | [8-K](/filings/0001140361-26-028092.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-028092 |
| 2026-06-24 | 19:48 ET | [8-K](/filings/0001140361-26-026232.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-026232 |
| 2026-06-12 | 18:20 ET | [8-K](/filings/0001140361-26-025050.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-025050 |
| 2026-06-08 | 16:49 ET | [8-K](/filings/0001140361-26-024407.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-26-024407 |
| 2026-05-28 | 16:41 ET | [8-K](/filings/0001140361-26-023093.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-023093 |
| 2026-04-29 | 18:33 ET | [10-Q](/filings/0000874015-26-000177.md) | Quarterly report, period 2026-03-31 | 0000874015-26-000177 |
| 2026-04-29 | 11:00 ET | [8-K](/filings/0001140361-26-017637.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-26-017637 |
| 2026-04-23 | 20:21 ET | [DEF 14A](/filings/0001140361-26-016388.md) | Proxy statement, period 2026-06-04 | 0001140361-26-016388 |
| 2026-04-21 | 11:00 ET | [8-K](/filings/0001140361-26-015801.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-015801 |
| 2026-03-09 | 11:00 ET | [8-K](/filings/0001140361-26-008340.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001140361-26-008340 |
| 2026-02-26 | 21:25 ET | [10-K](/filings/0000874015-26-000115.md) | Annual report, period 2025-12-31 | 0000874015-26-000115 |
| 2026-02-25 | 12:00 ET | [8-K](/filings/0001140361-26-006718.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-26-006718 |
| 2026-01-12 | 12:00 ET | [8-K](/filings/0001140361-26-000893.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-26-000893 |
| 2026-01-07 | 11:02 ET | [8-K](/filings/0001140361-26-000435.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-000435 |
| 2025-11-17 | 21:06 ET | [8-K](/filings/0001193125-25-284609.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-284609 |
| 2025-11-10 | 11:04 ET | [8-K](/filings/0001140361-25-041225.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-25-041225 |
| 2025-11-03 | 22:17 ET | [8-K/A](/filings/0001140361-25-040220.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001140361-25-040220 |
| 2025-10-29 | 20:43 ET | [10-Q](/filings/0000874015-25-000266.md) | Quarterly report, period 2025-09-30 | 0000874015-25-000266 |
| 2025-10-29 | 11:06 ET | [8-K](/filings/0001140361-25-039650.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-25-039650 |
| 2025-09-22 | 11:05 ET | [8-K](/filings/0001140361-25-035634.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-25-035634 |
| 2025-09-02 | 11:05 ET | [8-K](/filings/0001140361-25-033541.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-25-033541 |
| 2025-08-21 | 18:01 ET | [8-K](/filings/0001140361-25-032176.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-25-032176 |
| 2025-07-30 | 19:56 ET | [10-Q](/filings/0000874015-25-000167.md) | Quarterly report, period 2025-06-30 | 0000874015-25-000167 |
| 2025-07-30 | 15:16 ET | [8-K](/filings/0001140361-25-027949.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-25-027949 |
| 2025-06-12 | 13:00 ET | [8-K](/filings/0001140361-25-022267.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001140361-25-022267 |
| 2025-06-10 | 10:02 ET | [8-K](/filings/0001140361-25-022001.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001140361-25-022001 |
| 2025-05-19 | 11:18 ET | [8-K](/filings/0001140361-25-019620.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-25-019620 |
| 2025-04-30 | 19:56 ET | [10-Q](/filings/0000874015-25-000123.md) | Quarterly report, period 2025-03-31 | 0000874015-25-000123 |
| 2025-04-30 | 15:15 ET | [8-K](/filings/0001140361-25-016562.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-25-016562 |
| 2025-04-25 | 20:25 ET | [DEF 14A](/filings/0001140361-25-015771.md) | Proxy statement, period 2025-06-05 | 0001140361-25-015771 |
| 2025-03-12 | 00:38 ET | [8-K](/filings/0001140361-25-008178.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001140361-25-008178 |
| 2025-02-19 | 21:06 ET | [10-K](/filings/0000874015-25-000089.md) | Annual report, period 2024-12-31 | 0000874015-25-000089 |
| 2025-02-19 | 16:15 ET | [8-K](/filings/0001140361-25-005080.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-25-005080 |
| 2024-12-20 | 19:28 ET | [8-K](/filings/0001140361-24-050057.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-24-050057 |
| 2024-11-06 | 21:06 ET | [10-Q](/filings/0000874015-24-000232.md) | Quarterly report, period 2024-09-30 | 0000874015-24-000232 |
| 2024-11-06 | 16:15 ET | [8-K](/filings/0001140361-24-045370.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-24-045370 |
| 2024-09-12 | 22:02 ET | [8-K](/filings/0001193125-24-217333.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-217333 |
| 2024-09-09 | 20:33 ET | [8-K](/filings/0001193125-24-215939.md) | 8.01 Other events | 0001193125-24-215939 |
| 2024-08-01 | 20:57 ET | [10-Q](/filings/0000874015-24-000187.md) | Quarterly report, period 2024-06-30 | 0000874015-24-000187 |
| 2024-08-01 | 15:15 ET | [8-K](/filings/0001140361-24-035233.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001140361-24-035233 |
| 2024-06-18 | 13:29 ET | [8-K](/filings/0001140361-24-030447.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001140361-24-030447 |
| 2024-06-10 | 20:33 ET | [8-K](/filings/0001140361-24-029588.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001140361-24-029588 |

Page 1 of 7. [Older](/companies/ions/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:58 ET. No prices; not investment advice.