Company facts
- Industry
- Pharmaceutical Preparations
- Headquarters
- Pasadena, California
- Most recent report
- 8-K, filed Aug 4, 2026
- Incorporated
- Delaware
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 879407
- Fiscal year ends
- September
- Filer status
- Large accelerated filer
Financials 8 of 67
News 8 of 169
Prospectuses and Registrations 8 of 76
- S-8 Registration statement for an employee plan May 7, 2026
- 424B5 Prospectus supplement for an offering Jan 9, 2026
- 424B5 Prospectus supplement for an offering Jan 9, 2026
- FWP Free writing prospectus Jan 8, 2026
- FWP Free writing prospectus Jan 8, 2026
- 424B5 Prospectus supplement for an offering Jan 7, 2026
- 424B5 Prospectus supplement for an offering Jan 7, 2026
- S-3ASR Automatic shelf registration Dec 11, 2025
Proxies 8 of 33
- DEFA14A Extra proxy material Jan 27, 2026
- DEF 14A Proxy statement for a shareholder vote Jan 27, 2026
- DEFA14A Extra proxy material Feb 7, 2025
- DEFA14A Extra proxy material Jan 29, 2025
- DEF 14A Proxy statement for a shareholder vote Jan 29, 2025
- DEFA14A Extra proxy material Feb 27, 2024
- DEFA14A Extra proxy material Jan 26, 2024
- DEF 14A Proxy statement for a shareholder vote Jan 26, 2024
Ownership 8 of 579
- 144 Notice of a proposed sale of restricted stock Aug 18, 2026
- 144 Notice of a proposed sale of restricted stock Aug 18, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 14, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 31, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 27, 2026
- 4 Insider reported a trade Jun 17, 2026
- 3 Insider reported their initial holding Jun 17, 2026
- 144/A Notice of a proposed sale of restricted stock, amended May 19, 2026
Other 8 of 76
Everything here comes from Arrowhead Pharmaceuticals, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.