# Arrowhead Pharmaceuticals, Inc.: filings

ARWR · Nasdaq · CIK 879407 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Sep 30

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

## Reports and events: 292 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 (4 386, 8-K 189, 144 83, 10-Q 54, SC 13G/A 49, CORRESP 27, SC 13G 24, UPLOAD 24, 3 22, 424B5 19, DEF 14A 19, EFFECT 19, 10-K 17, S-8 15, 424B3 12, DEFA14A 11, S-3 11, S-3/A 10, SCHEDULE 13G/A 10, 4/A 8, CT ORDER 7, 5 6, POS AM 6, PRE 14A 6, 144/A 5, D 5, S-3ASR 4, 8-K/A 3, ARS 3, SC 13D 3, SCHEDULE 13G 3, 424B7 2, 8-A12G/A 2, FWP 2, PRER14A 2, S-1 2, S-1/A 2, SC 13D/A 2, 10-K/A 1, 305B2 1, 3/A 1, 424B2 1, 8-A12B 1, D/A 1, DEFR14A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-04 | 16:03 ET | [8-K](/filings/0000879407-26-000058.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000879407-26-000058 |
| 2026-08-04 | 16:02 ET | [10-Q](/filings/0000879407-26-000057.md) | Quarterly report, period 2026-06-30 | 0000879407-26-000057 |
| 2026-06-16 | 16:02 ET | [8-K](/filings/0000879407-26-000050.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000879407-26-000050 |
| 2026-05-07 | 16:05 ET | [10-Q](/filings/0000879407-26-000047.md) | Quarterly report, period 2026-03-31 | 0000879407-26-000047 |
| 2026-05-07 | 16:02 ET | [8-K](/filings/0000879407-26-000045.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000879407-26-000045 |
| 2026-03-20 | 16:05 ET | [8-K](/filings/0000879407-26-000037.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000879407-26-000037 |
| 2026-02-05 | 16:06 ET | [10-Q](/filings/0000879407-26-000034.md) | Quarterly report, period 2025-12-31 | 0000879407-26-000034 |
| 2026-02-05 | 16:05 ET | [8-K](/filings/0000879407-26-000033.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000879407-26-000033 |
| 2026-01-27 | 17:32 ET | [DEF 14A](/filings/0000879407-26-000019.md) | Proxy statement, period 2026-01-26 | 0000879407-26-000019 |
| 2026-01-12 | 17:00 ET | [8-K](/filings/0001193125-26-010582.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-26-010582 |
| 2026-01-09 | 19:15 ET | [8-K](/filings/0001193125-26-007971.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-007971 |
| 2026-01-06 | 16:05 ET | [8-K](/filings/0000879407-26-000004.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0000879407-26-000004 |
| 2025-11-25 | 16:13 ET | [10-K](/filings/0000879407-25-000029.md) | Annual report, period 2025-09-30 | 0000879407-25-000029 |
| 2025-11-25 | 16:10 ET | [8-K](/filings/0000879407-25-000027.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000879407-25-000027 |
| 2025-11-18 | 14:49 ET | [8-K](/filings/0000879407-25-000019.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000879407-25-000019 |
| 2025-10-10 | 16:02 ET | [10-K/A](/filings/0000879407-25-000013.md) | Annual report, amended, period 2024-09-30 | 0000879407-25-000013 |
| 2025-09-12 | 16:01 ET | [8-K](/filings/0000879407-25-000010.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000879407-25-000010 |
| 2025-09-11 | 07:31 ET | [8-K](/filings/0000879407-25-000007.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000879407-25-000007 |
| 2025-09-02 | 16:02 ET | [8-K](/filings/0000879407-25-000004.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000879407-25-000004 |
| 2025-08-07 | 16:07 ET | [8-K](/filings/0001628280-25-038867.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-038867 |
| 2025-08-07 | 16:04 ET | [10-Q](/filings/0001628280-25-038858.md) | Quarterly report, period 2025-06-30 | 0001628280-25-038858 |
| 2025-05-12 | 16:10 ET | [8-K](/filings/0001628280-25-024675.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-024675 |
| 2025-05-12 | 16:07 ET | [10-Q](/filings/0001628280-25-024666.md) | Quarterly report, period 2025-03-31 | 0001628280-25-024666 |
| 2025-04-15 | 15:50 ET | [8-K](/filings/0001628280-25-017844.md) | 5.02 Departure or appointment of officers or directors | 0001628280-25-017844 |
| 2025-03-19 | 19:49 ET | [8-K](/filings/0001628280-25-013619.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001628280-25-013619 |
| 2025-02-10 | 16:03 ET | [8-K](/filings/0001628280-25-004637.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-004637 |
| 2025-02-10 | 16:02 ET | [10-Q](/filings/0001628280-25-004634.md) | Quarterly report, period 2024-12-31 | 0001628280-25-004634 |
| 2025-02-07 | 18:58 ET | [8-K](/filings/0001628280-25-004313.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-25-004313 |
| 2025-01-29 | 17:33 ET | [DEF 14A](/filings/0001628280-25-002848.md) | Proxy statement, period 2025-01-28 | 0001628280-25-002848 |
| 2024-12-18 | 17:38 ET | [8-K](/filings/0001628280-24-051729.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-24-051729 |
| 2024-11-26 | 16:19 ET | [8-K](/filings/0001628280-24-049281.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-049281 |
| 2024-11-26 | 16:18 ET | [10-K](/filings/0001628280-24-049277.md) | Annual report, period 2024-09-30 | 0001628280-24-049277 |
| 2024-08-08 | 16:04 ET | [8-K](/filings/0001628280-24-036113.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-036113 |
| 2024-08-08 | 16:03 ET | [10-Q](/filings/0001628280-24-036104.md) | Quarterly report, period 2024-06-30 | 0001628280-24-036104 |
| 2024-05-09 | 16:11 ET | [8-K](/filings/0001628280-24-022233.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-022233 |
| 2024-05-09 | 16:09 ET | [10-Q](/filings/0001628280-24-022215.md) | Quarterly report, period 2024-03-31 | 0001628280-24-022215 |
| 2024-03-19 | 16:38 ET | [8-K](/filings/0001628280-24-011930.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001628280-24-011930 |
| 2024-03-18 | 19:21 ET | [8-K/A](/filings/0001628280-24-011557.md) | 5.02 Departure or appointment of officers or directors | 0001628280-24-011557 |
| 2024-02-22 | 17:42 ET | [8-K](/filings/0001628280-24-005998.md) | 5.02 Departure or appointment of officers or directors | 0001628280-24-005998 |
| 2024-02-06 | 16:13 ET | [10-Q](/filings/0001628280-24-003492.md) | Quarterly report, period 2023-12-31 | 0001628280-24-003492 |
| 2024-02-06 | 16:07 ET | [8-K](/filings/0001628280-24-003488.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-003488 |
| 2024-01-26 | 17:25 ET | [DEF 14A](/filings/0001628280-24-002375.md) | Proxy statement, period 2024-01-26 | 0001628280-24-002375 |
| 2024-01-22 | 18:08 ET | [8-K](/filings/0001628280-24-001805.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-24-001805 |
| 2024-01-04 | 17:27 ET | [8-K](/filings/0001628280-24-000480.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-24-000480 |
| 2023-12-05 | 17:16 ET | [8-K](/filings/0001628280-23-040776.md) | 4.01 Change of auditor; 9.01 Financial statements and exhibits | 0001628280-23-040776 |
| 2023-11-29 | 16:10 ET | [8-K](/filings/0001628280-23-040222.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-23-040222 |
| 2023-11-29 | 16:09 ET | [10-K](/filings/0001628280-23-040219.md) | Annual report, period 2023-09-30 | 0001628280-23-040219 |
| 2023-08-07 | 16:10 ET | [8-K](/filings/0001628280-23-027779.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-23-027779 |
| 2023-08-07 | 16:08 ET | [10-Q](/filings/0001628280-23-027771.md) | Quarterly report, period 2023-06-30 | 0001628280-23-027771 |
| 2023-05-02 | 16:09 ET | [8-K](/filings/0001628280-23-014859.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-23-014859 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:58 ET. No prices; not investment advice.