Company facts
- Industry
- Special Industry Machinery, NEC
- Headquarters
- Tempe, Arizona
- Most recent report
- 8-K, filed Aug 5, 2026
- Incorporated
- Arizona
- Filings on record
- 975 filings
- On EDGAR
- CIK 720500
- Fiscal year ends
- September
- Filer status
- Non-accelerated filer Smaller reporting company
Financials 8 of 136
News 8 of 177
Prospectuses and Registrations 8 of 41
- 424B5 Prospectus supplement for an offering Jun 3, 2026
- 424B5 Prospectus supplement for an offering Jun 1, 2026
- S-3 Shelf registration statement Mar 13, 2026
- S-8 Registration statement for an employee plan Mar 19, 2025
- S-8 Registration statement for an employee plan Mar 25, 2022
- 424B5 Prospectus supplement for an offering Aug 18, 2017
- 424B5 Prospectus supplement for an offering Aug 17, 2017
- S-3/A Shelf registration statement, amended Feb 2, 2017
Proxies 8 of 37
- DEF 14A Proxy statement for a shareholder vote Jan 23, 2026
- DEFA14A Extra proxy material Feb 24, 2025
- DEF 14A Proxy statement for a shareholder vote Jan 24, 2025
- DEF 14A Proxy statement for a shareholder vote Jan 19, 2024
- DEF 14A Proxy statement for a shareholder vote Jan 20, 2023
- DEF 14A Proxy statement for a shareholder vote Jan 18, 2022
- DEF 14A Proxy statement for a shareholder vote Jan 28, 2021
- DEF 14A Proxy statement for a shareholder vote Jan 24, 2020
Ownership 8 of 494
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 6, 2026
- 4 Insider reported a trade Aug 5, 2026
- 4 Insider reported a trade Aug 5, 2026
- 4 Insider reported a trade Aug 5, 2026
- SCHEDULE 13G Large holder reported a passive stake Jul 27, 2026
- SCHEDULE 13D/A Large holder reported an active stake, amended Jun 2, 2026
- 4 Insider reported a trade Jun 1, 2026
- 4 Insider reported a trade May 29, 2026
Other 8 of 90
- S-3MEF Jun 1, 2026
- SD Conflict minerals disclosure May 26, 2026
- EFFECT Notice that a registration became effective Mar 23, 2026
- CORRESP Reply to SEC staff Mar 18, 2026
- UPLOAD Comment letter from SEC staff Mar 16, 2026
- ARS Annual report sent to shareholders Jan 23, 2026
- SD Conflict minerals disclosure May 30, 2025
- ARS Annual report sent to shareholders Jan 24, 2025
Everything here comes from Amtech Systems Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.