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 |
|---|---|---|---|
| 8-K |
Current report
Material agreement, New debt
|
Nov 4, 2026 | Nov 4, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 8-K |
Current report
Officer or director change
|
Jun 16, 2026 | Jun 12, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Mar 20, 2026 | Mar 19, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2026 | Feb 5, 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 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 6, 2026 | Jan 6, 2026 |
| 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 |
| 8-K |
Current report
Other events
|
Sep 12, 2025 | Sep 11, 2025 |
| 8-K |
Current report
Other events
|
Sep 11, 2025 | Sep 10, 2025 |
| 8-K |
Current report
Material agreement
|
Sep 2, 2025 | Sep 2, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2025 | Apr 11, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Mar 19, 2025 | Mar 12, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2025 | Feb 10, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 7, 2025 | Feb 7, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2024 | Dec 11, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 26, 2024 | Nov 26, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Mar 19, 2024 | Mar 14, 2024 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 18, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 22, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2024 | Feb 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 22, 2024 | Jan 16, 2024 |
| 8-K |
Current report
Material agreement
|
Jan 4, 2024 | Jan 2, 2024 |
| 8-K |
Current report
Auditor change
|
Dec 5, 2023 | Dec 5, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 29, 2023 | Nov 29, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2023 | Aug 7, 2023 |
| 8-K |
Current report
Results of operations
|
May 2, 2023 | May 2, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Mar 21, 2023 | Mar 16, 2023 |
| 8-K |
Current report
Agreement ended, Other events
|
Feb 15, 2023 | Feb 10, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 14, 2023 | Feb 11, 2023 |
| 8-K |
Current report
Other events
|
Feb 8, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Acquisition or sale of assets
|
Feb 6, 2023 | Feb 6, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 30, 2023 | Jan 24, 2023 |
| 8-K |
Current report
Material agreement
|
Dec 8, 2022 | Dec 2, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 28, 2022 | Nov 28, 2022 |
| 8-K |
Current report
Material agreement
|
Nov 10, 2022 | Nov 9, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Officer or director change
|
Jul 20, 2022 | Jul 15, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 6, 2022 | Jun 1, 2022 |
| 8-K |
Current report
Results of operations
|
May 10, 2022 | May 10, 2022 |
| 8-K |
Current report
Officer or director change
|
May 5, 2022 | May 2, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 25, 2022 | Apr 25, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Mar 18, 2022 | Mar 17, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2022 | Feb 2, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 20, 2021 | Dec 20, 2021 |
| 8-K |
Current report
Other events
|
Dec 16, 2021 | Dec 16, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 22, 2021 | Nov 22, 2021 |
| 8-K |
Current report
Officer or director change
|
Aug 27, 2021 | Aug 23, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jun 22, 2021 | Jun 18, 2021 |
| 8-K |
Current report
Other events
|
Jun 16, 2021 | Jun 15, 2021 |
| 8-K |
Current report
Results of operations
|
May 4, 2021 | May 4, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Mar 24, 2021 | Mar 18, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2021 | Feb 4, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 23, 2020 | Nov 23, 2020 |
| 8-K |
Current report
Material agreement
|
Oct 9, 2020 | Oct 7, 2020 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2020 | Sep 1, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2020 | Aug 5, 2020 |
| 8-K |
Current report
Results of operations
|
May 7, 2020 | May 7, 2020 |
| 8-K |
Current report
Officer or director change
|
May 1, 2020 | May 1, 2020 |
| 8-K |
Current report
Material agreement, New debt, Shareholder vote results
|
Mar 19, 2020 | Mar 14, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2020 | Feb 5, 2020 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2019 | Dec 12, 2019 |
| 8-K |
Current report
Material agreement
|
Dec 6, 2019 | Dec 3, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 25, 2019 | Nov 25, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 21, 2019 | Nov 15, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2019 | Aug 5, 2019 |
| 8-K |
Current report
Results of operations
|
May 8, 2019 | May 8, 2019 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 19, 2019 | Apr 17, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Mar 15, 2019 | Mar 15, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2019 | Feb 7, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 29, 2019 | Jan 28, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 11, 2019 | Jan 7, 2019 |
| 8-K |
Current report
Results of operations
|
Dec 11, 2018 | Dec 11, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Oct 4, 2018 | Oct 4, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2018 | Aug 7, 2018 |
| 8-K |
Current report
Results of operations
|
May 8, 2018 | May 8, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Mar 20, 2018 | Mar 16, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2018 | Feb 9, 2018 |
| 8-K |
Current report
Material agreement
|
Jan 22, 2018 | Jan 18, 2018 |
| 8-K |
Current report
Officer or director change
|
Dec 27, 2017 | Dec 20, 2017 |
| 8-K |
Current report
Results of operations
|
Dec 12, 2017 | Dec 12, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2017 | Aug 3, 2017 |
| 8-K |
Current report
Results of operations
|
May 3, 2017 | May 3, 2017 |
| 8-K |
Current report
Material agreement, Change to shareholder rights, Bylaw or fiscal year change, Shareholder vote results
|
Mar 23, 2017 | Mar 21, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2017 | Feb 6, 2017 |
| 8-K |
Current report
Results of operations
|
Dec 14, 2016 | Dec 14, 2016 |
| 8-K |
Current report
Officer or director change, Other events
|
Dec 1, 2016 | Nov 29, 2016 |
| 8-K |
Current report
Other events
|
Nov 10, 2016 | Nov 8, 2016 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 29, 2016 | Sep 29, 2016 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 29, 2016 | Sep 28, 2016 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Aug 10, 2016 | Aug 8, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2016 | Aug 9, 2016 |
| 8-K |
Current report
Results of operations
|
May 10, 2016 | May 10, 2016 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Apr 6, 2016 | Apr 6, 2016 |
| 8-K |
Current report
Shareholder vote results
|
Mar 10, 2016 | Mar 8, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2016 | Feb 9, 2016 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 14, 2016 | Jan 8, 2016 |
| 8-K |
Current report
Results of operations
|
Dec 14, 2015 | Dec 14, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2015 | Aug 4, 2015 |
| 8-K |
Current report
Results of operations
|
May 11, 2015 | May 11, 2015 |
| 8-K |
Current report
Shareholder vote results
|
Mar 6, 2015 | Mar 3, 2015 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale
|
Mar 5, 2015 | Mar 4, 2015 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2015 | Feb 9, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 25, 2014 | Nov 25, 2014 |
| 8-K |
Current report
Other events
|
Oct 10, 2014 | Oct 8, 2014 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2014 | Aug 12, 2014 |
| 8-K |
Current report
Results of operations
|
May 6, 2014 | May 6, 2014 |
| 8-K |
Current report
Material agreement
|
Feb 21, 2014 | Feb 19, 2014 |
| 8-K |
Current report
Officer or director change
|
Feb 12, 2014 | Feb 6, 2014 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Feb 7, 2014 | Feb 6, 2014 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2014 | Feb 4, 2014 |
| 8-K |
Current report
Results of operations
|
Dec 18, 2013 | Dec 18, 2013 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Bylaw or fiscal year change, Other events
|
Oct 10, 2013 | Oct 8, 2013 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2013 | Aug 7, 2013 |
| 8-K |
Current report
Results of operations
|
May 9, 2013 | May 9, 2013 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Bylaw or fiscal year change, Other events
|
May 1, 2013 | Apr 29, 2013 |
| 8-K |
Current report
Shareholder vote results
|
Mar 25, 2013 | Mar 21, 2013 |
| 8-K |
Current report
Results of operations
|
Feb 13, 2013 | Feb 13, 2013 |
| 8-K |
Current report
Other events
|
Jan 30, 2013 | Jan 25, 2013 |
| 8-K |
Current report
Results of operations
|
Dec 20, 2012 | Dec 20, 2012 |
| 8-K |
Current report
Other events
|
Dec 12, 2012 | Dec 7, 2012 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2012 | Aug 13, 2012 |
| 8-K |
Current report
Other events
|
Aug 13, 2012 | Aug 10, 2012 |
| 8-K |
Current report
Results of operations
|
May 8, 2012 | May 8, 2012 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Apr 11, 2012 | Apr 5, 2012 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Feb 23, 2012 | Feb 16, 2012 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2012 | Feb 9, 2012 |
| 8-K/A | Amended current report | Dec 30, 2011 | Oct 21, 2011 |
| 8-K |
Current report
Results of operations
|
Dec 20, 2011 | Dec 20, 2011 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Nov 17, 2011 | Nov 17, 2011 |
| 8-K |
Current report
Listing notice
|
Nov 15, 2011 | Nov 9, 2011 |
| 8-K |
Current report
Officer or director change
|
Oct 27, 2011 | Oct 26, 2011 |
| 8-K |
Current report
Material agreement
|
Oct 27, 2011 | Oct 24, 2011 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Oct 26, 2011 | Oct 20, 2011 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale
|
Oct 24, 2011 | Oct 21, 2011 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Oct 6, 2011 | Sep 30, 2011 |
| 8-K |
Current report
Shareholder vote results
|
Aug 9, 2011 | Aug 8, 2011 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2011 | Aug 8, 2011 |
| 8-K |
Current report
Listing notice
|
Jun 9, 2011 | Jun 7, 2011 |
| 8-K |
Current report
Results of operations
|
May 12, 2011 | May 12, 2011 |
| 8-K |
Current report
Material agreement
|
Apr 5, 2011 | Mar 30, 2011 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2011 | Feb 10, 2011 |
| 8-K |
Current report
Officer or director change
|
Feb 3, 2011 | Feb 1, 2011 |
| 8-K |
Current report
Acquisition or sale of assets
|
Jan 24, 2011 | Jan 18, 2011 |
| 8-K |
Current report
Material agreement
|
Jan 21, 2011 | Jan 17, 2011 |
| 8-K |
Current report
Material agreement
|
Jan 14, 2011 | Jan 10, 2011 |
| 8-K |
Current report
Results of operations
|
Dec 22, 2010 | Dec 22, 2010 |
| 8-K |
Current report
Material agreement
|
Dec 20, 2010 | Dec 14, 2010 |
| 8-K |
Current report
Listing notice
|
Dec 14, 2010 | Dec 8, 2010 |
| 8-K |
Current report
Material agreement
|
Dec 9, 2010 | Dec 7, 2010 |
| 8-K |
Current report
Officer or director change
|
Nov 30, 2010 | Nov 23, 2010 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 22, 2010 | Sep 16, 2010 |
| 8-K |
Current report
Officer or director change
|
Aug 23, 2010 | Aug 17, 2010 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2010 | Aug 12, 2010 |
| 8-K |
Current report
Material agreement
|
Jul 2, 2010 | Jun 29, 2010 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 22, 2010 | Jun 16, 2010 |
| 8-K |
Current report
Material agreement
|
Jun 18, 2010 | Jun 17, 2010 |
| 8-K |
Current report
Officer or director change
|
May 28, 2010 | May 27, 2010 |
| 8-K |
Current report
Results of operations
|
May 13, 2010 | May 13, 2010 |
Showing 167 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
- 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.