Company facts
- Headquarters
- Pleasanton, California
- Most recent report
- 10-Q, filed Nov 5, 2026
- Incorporated
- Delaware
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 920371
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 62
News 8 of 181
Prospectuses and Registrations 8 of 16
- S-8 Registration statement for an employee plan May 12, 2025
- S-8 Registration statement for an employee plan May 8, 2023
- 25-NSE Notice that a security was delisted Nov 14, 2016
- S-8 POS Post-effective amendment to an employee plan registration Dec 15, 2015
- S-8 POS Post-effective amendment to an employee plan registration Dec 15, 2015
- S-8 POS Post-effective amendment to an employee plan registration Dec 15, 2015
- S-8 POS Post-effective amendment to an employee plan registration Dec 15, 2015
- S-8 POS Post-effective amendment to an employee plan registration Dec 15, 2015
Proxies 8 of 32
- DEFA14A Extra proxy material Mar 24, 2026
- DEF 14A Proxy statement for a shareholder vote Mar 24, 2026
- DEFA14A Extra proxy material Mar 24, 2025
- DEF 14A Proxy statement for a shareholder vote Mar 24, 2025
- DEFA14A Extra proxy material Mar 19, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 19, 2024
- PRE 14A Preliminary proxy statement Mar 8, 2024
- DEFA14A Extra proxy material Mar 16, 2023
Ownership 8 of 648
- SCHEDULE 13G/A Large holder reported a passive stake, amended Nov 5, 2026
- 4 Insider reported a trade Sep 11, 2026
- 144 Notice of a proposed sale of restricted stock Sep 10, 2026
- 4 Insider reported a trade Aug 21, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 13, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 6, 2026
- 4 Insider reported a trade Aug 5, 2026
- 144 Notice of a proposed sale of restricted stock Aug 4, 2026
Other 8 of 61
- 11-K/A Employee stock plan report, amended Jul 2, 2026
- 11-K Employee stock plan report Jun 18, 2026
- SD Conflict minerals disclosure Jun 18, 2026
- SD Conflict minerals disclosure Aug 13, 2025
- 11-K Employee stock plan report Jun 30, 2025
- ARS Annual report sent to shareholders Mar 24, 2025
- 11-K Employee stock plan report Jul 15, 2024
- NT 11-K Jul 1, 2024
Everything here comes from Simpson Manufacturing Co., Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.