Arrowhead Pharmaceuticals, Inc. SEC filings ARWR
Arrowhead Pharmaceuticals, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Apr 30, 2010. Its latest annual report, Form ARS, was filed on Jan 27, 2026 for the period ended Jan 26, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 4, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (material agreement, new debt). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2026 | — |
| 8-K |
Current report
Material agreement, New debt
|
Nov 4, 2026 | Nov 4, 2026 |
| 4 | Insider transaction | Aug 20, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Aug 20, 2026 | Aug 18, 2026 |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 10-Q | Quarterly report | Aug 4, 2026 | Jun 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 27, 2026 | — |
| 4 | Insider transaction | Jun 17, 2026 | Jun 15, 2026 |
| 3 | Initial insider ownership | Jun 17, 2026 | Jun 15, 2026 |
| 8-K |
Current report
Officer or director change
|
Jun 16, 2026 | Jun 12, 2026 |
| 144/A | Filing | May 19, 2026 | — |
| 144/A | Filing | May 19, 2026 | — |
| 144/A | Filing | May 19, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 12, 2026 |
| 144 | Notice of proposed sale | May 12, 2026 | — |
| S-8 | Employee stock plan registration | May 7, 2026 | — |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 6, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| 4 | Insider transaction | Apr 24, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Apr 24, 2026 | Apr 23, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2026 | — |
| 144 | Notice of proposed sale | Apr 23, 2026 | — |
| 144 | Notice of proposed sale | Apr 22, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
Mar 20, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 10-Q | Quarterly report | Feb 5, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2026 | Feb 5, 2026 |
| ARS | Annual report to shareholders | Jan 27, 2026 | Jan 26, 2026 |
| DEFA14A | Additional proxy material | Jan 27, 2026 | — |
| DEF 14A | Proxy statement | Jan 27, 2026 | Jan 26, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 8-K |
Current report
Material agreement, New debt
|
Jan 12, 2026 | Jan 12, 2026 |
| 8-K |
Current report
Material agreement, Other events
|
Jan 9, 2026 | Jan 7, 2026 |
| 424B5 | Prospectus supplement | Jan 9, 2026 | — |
| 424B5 | Prospectus supplement | Jan 9, 2026 | — |
| 4 | Insider transaction | Jan 8, 2026 | Jan 6, 2026 |
| 4 | Insider transaction | Jan 8, 2026 | Jan 6, 2026 |
| 4 | Insider transaction | Jan 8, 2026 | Jan 6, 2026 |
| 305B2 | Filing | Jan 8, 2026 | — |
| FWP | Free writing prospectus | Jan 8, 2026 | — |
| FWP | Free writing prospectus | Jan 8, 2026 | — |
| 424B5 | Prospectus supplement | Jan 7, 2026 | — |
| 424B5 | Prospectus supplement | Jan 7, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 6, 2026 | Jan 6, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 144/A | Filing | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 2, 2026 | — |
| 4 | Insider transaction | Dec 30, 2025 | Dec 29, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 144 | Notice of proposed sale | Dec 29, 2025 | — |
| 144 | Notice of proposed sale | Dec 29, 2025 | — |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 144 | Notice of proposed sale | Dec 22, 2025 | — |
| 4 | Insider transaction | Dec 19, 2025 | Dec 17, 2025 |
| 144 | Notice of proposed sale | Dec 19, 2025 | — |
| 144 | Notice of proposed sale | Dec 19, 2025 | — |
| 144 | Notice of proposed sale | Dec 19, 2025 | — |
| 144 | Notice of proposed sale | Dec 19, 2025 | — |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 144 | Notice of proposed sale | Dec 17, 2025 | — |
| 144 | Notice of proposed sale | Dec 16, 2025 | — |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 144 | Notice of proposed sale | Dec 15, 2025 | — |
| S-3ASR | Automatic shelf registration | Dec 11, 2025 | — |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 144 | Notice of proposed sale | Dec 5, 2025 | — |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 144 | Notice of proposed sale | Nov 28, 2025 | — |
| 10-K | Annual report | Nov 25, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 25, 2025 | Nov 25, 2025 |
| 8-K |
Current report
Other events
|
Nov 18, 2025 | Nov 18, 2025 |
| 10-K/A | Amended annual report | Oct 10, 2025 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 144 | Notice of proposed sale | Oct 1, 2025 | — |
| 4 | Insider transaction | Sep 16, 2025 | Sep 12, 2025 |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 8-K |
Current report
Other events
|
Sep 12, 2025 | Sep 11, 2025 |
| 8-K |
Current report
Other events
|
Sep 11, 2025 | Sep 10, 2025 |
| 4 | Insider transaction | Sep 4, 2025 | Sep 2, 2025 |
| 144 | Notice of proposed sale | Sep 2, 2025 | — |
| 8-K |
Current report
Material agreement
|
Sep 2, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Aug 15, 2025 | Aug 13, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 15, 2025 | — |
| 144 | Notice of proposed sale | Aug 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 144 | Notice of proposed sale | Aug 13, 2025 | — |
| 144 | Notice of proposed sale | Aug 13, 2025 | — |
| 3 | Initial insider ownership | Aug 12, 2025 | Apr 15, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 11, 2025 | — |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| 144 | Notice of proposed sale | Jul 10, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 13, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 23, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2025 | Apr 11, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 9, 2025 |
| 144 | Notice of proposed sale | Apr 11, 2025 | — |
| 144 | Notice of proposed sale | Apr 10, 2025 | — |
| 144 | Notice of proposed sale | Apr 9, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Mar 19, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 13, 2025 |
| 144 | Notice of proposed sale | Mar 13, 2025 | — |
| 424B7 | Filing | Mar 7, 2025 | — |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 10, 2025 | Feb 7, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2025 | Feb 10, 2025 |
| 10-Q | Quarterly report | Feb 10, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 3 | Initial insider ownership | Feb 7, 2025 | Feb 6, 2025 |
| DEFA14A | Additional proxy material | Feb 7, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Feb 7, 2025 | Feb 7, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 5, 2025 | — |
| ARS | Annual report to shareholders | Jan 29, 2025 | Jan 28, 2025 |
| DEFA14A | Additional proxy material | Jan 29, 2025 | — |
| DEF 14A | Proxy statement | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 144 | Notice of proposed sale | Jan 23, 2025 | — |
| 4 | Insider transaction | Jan 7, 2025 | Jan 4, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 4, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 4, 2025 |
| 144 | Notice of proposed sale | Jan 7, 2025 | — |
| 144 | Notice of proposed sale | Jan 7, 2025 | — |
| 144 | Notice of proposed sale | Jan 7, 2025 | — |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 144 | Notice of proposed sale | Jan 2, 2025 | — |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 144 | Notice of proposed sale | Dec 27, 2024 | — |
| 4 | Insider transaction | Dec 23, 2024 | Dec 23, 2024 |
| 144 | Notice of proposed sale | Dec 23, 2024 | — |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 18, 2024 |
| 424B7 | Filing | Dec 20, 2024 | — |
| 4 | Insider transaction | Dec 18, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 18, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 18, 2024 | Dec 16, 2024 |
| 144 | Notice of proposed sale | Dec 18, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2024 | Dec 11, 2024 |
| 144 | Notice of proposed sale | Dec 17, 2024 | — |
| 144 | Notice of proposed sale | Dec 17, 2024 | — |
| 144 | Notice of proposed sale | Dec 16, 2024 | — |
| 144 | Notice of proposed sale | Dec 16, 2024 | — |
| 144 | Notice of proposed sale | Dec 16, 2024 | — |
| 8-K |
Current report
Results of operations
|
Nov 26, 2024 | Nov 26, 2024 |
| 10-K | Annual report | Nov 26, 2024 | Sep 30, 2024 |
| 5 | Annual insider ownership | Nov 15, 2024 | Sep 30, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 16, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 2, 2024 |
| 144 | Notice of proposed sale | Jul 2, 2024 | — |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 2, 2024 |
| 144 | Notice of proposed sale | May 2, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 10, 2024 | — |
| 4 | Insider transaction | Apr 3, 2024 | Apr 1, 2024 |
| 144 | Notice of proposed sale | Apr 1, 2024 | — |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Mar 19, 2024 | Mar 14, 2024 |
Showing 200 filings, the most recent 200. 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ARWR (Nasdaq)
- Fiscal year ends
- September 30
- Incorporated in
- DE
- Headquarters
- Pasadena, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 879407
- Former names
- ARROWHEAD RESEARCH CORP (until Apr 6, 2016); INTERACTIVE GROUP INC (until Jan 9, 2004); INTERACTIVE INC (until Feb 13, 2002)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.