Amtech Systems Inc SEC filings ASYS
Amtech Systems Inc has 978 filings in SEC EDGAR's recent list, going back to May 15, 1995. Its latest annual report, Form ARS, was filed on Jan 23, 2026 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 5, 2026 (officer or director change). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 9, 2026 | — |
| 4 | Insider transaction | Sep 16, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 24, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | Aug 5, 2026 | Aug 4, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 4, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 4, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 2, 2026 | — |
| 4 | Insider transaction | Jun 1, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 14, 2026 |
| 3 | Initial insider ownership | May 29, 2026 | May 19, 2026 |
| 3 | Initial insider ownership | May 29, 2026 | May 14, 2026 |
| 3 | Initial insider ownership | May 14, 2026 | Dec 16, 2025 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 4 | Insider transaction | Sep 3, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Aug 15, 2025 | Aug 8, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 4, 2025 | — |
| 4 | Insider transaction | Mar 21, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 18, 2025 | — |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2025 | — |
| 4 | Insider transaction | Feb 10, 2025 | Feb 7, 2025 |
| 3 | Initial insider ownership | Feb 3, 2025 | Feb 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 28, 2025 | — |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 31, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 15, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 6, 2024 | — |
| 4 | Insider transaction | Aug 16, 2024 | Aug 14, 2024 |
| 4 | Insider transaction | Aug 13, 2024 | Aug 9, 2024 |
| 4 | Insider transaction | Aug 9, 2024 | Aug 8, 2024 |
| 3 | Initial insider ownership | Aug 9, 2024 | Aug 8, 2024 |
| 4 | Insider transaction | May 14, 2024 | May 10, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 14, 2024 | — |
| 4 | Insider transaction | Mar 18, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 13, 2024 | Mar 11, 2024 |
| 4 | Insider transaction | Mar 8, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Mar 8, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Mar 8, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 13, 2024 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2024 | — |
| 4 | Insider transaction | Dec 20, 2023 | Dec 18, 2023 |
| 4 | Insider transaction | Dec 19, 2023 | Dec 18, 2023 |
| 4 | Insider transaction | Aug 25, 2023 | Aug 24, 2023 |
| 4 | Insider transaction | Aug 21, 2023 | Aug 17, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 14, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 14, 2023 |
| 4 | Insider transaction | Aug 15, 2023 | Aug 11, 2023 |
| 4 | Insider transaction | Aug 14, 2023 | Aug 11, 2023 |
| 4 | Insider transaction | Jul 7, 2023 | Jul 6, 2023 |
| 4 | Insider transaction | May 25, 2023 | May 23, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 18, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 16, 2023 | May 12, 2023 |
| 4 | Insider transaction | May 15, 2023 | May 12, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Feb 13, 2023 | Feb 10, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| 4 | Insider transaction | Jan 18, 2023 | Jan 13, 2023 |
| 3 | Initial insider ownership | Jan 18, 2023 | Jan 13, 2023 |
| 4 | Insider transaction | Dec 5, 2022 | Dec 1, 2022 |
| 4 | Insider transaction | Dec 5, 2022 | Dec 1, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 28, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 28, 2022 |
| 4 | Insider transaction | Oct 14, 2022 | Oct 13, 2022 |
| 4 | Insider transaction | Sep 13, 2022 | Sep 9, 2022 |
| 4 | Insider transaction | Sep 6, 2022 | Sep 1, 2022 |
| 4 | Insider transaction | Aug 25, 2022 | Aug 23, 2022 |
| 4 | Insider transaction | Aug 25, 2022 | Aug 24, 2022 |
| 4 | Insider transaction | May 17, 2022 | May 13, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 24, 2022 | — |
| 4 | Insider transaction | Feb 24, 2022 | Feb 22, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2022 | — |
| 4 | Insider transaction | Nov 24, 2021 | Nov 22, 2021 |
| 4 | Insider transaction | Nov 18, 2021 | Nov 16, 2021 |
| 4 | Insider transaction | Nov 18, 2021 | Nov 16, 2021 |
| 4 | Insider transaction | Sep 10, 2021 | Sep 8, 2021 |
| 4 | Insider transaction | Sep 7, 2021 | Sep 3, 2021 |
| 4 | Insider transaction | Aug 13, 2021 | Aug 12, 2021 |
| 3 | Initial insider ownership | Aug 13, 2021 | Aug 12, 2021 |
| 4 | Insider transaction | Aug 12, 2021 | Aug 11, 2021 |
| 4 | Insider transaction | Aug 10, 2021 | Aug 6, 2021 |
| 4 | Insider transaction | Mar 25, 2021 | Mar 23, 2021 |
| 4 | Insider transaction | Mar 25, 2021 | Mar 23, 2021 |
| 4 | Insider transaction | Mar 25, 2021 | Mar 23, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 18, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2021 | — |
| 4 | Insider transaction | Dec 4, 2020 | Dec 3, 2020 |
| 4 | Insider transaction | Nov 19, 2020 | Nov 17, 2020 |
| 4 | Insider transaction | Nov 19, 2020 | Nov 17, 2020 |
| 4 | Insider transaction | Nov 19, 2020 | Nov 17, 2020 |
| 4 | Insider transaction | Aug 12, 2020 | Aug 10, 2020 |
| 4 | Insider transaction | Mar 16, 2020 | Mar 13, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 4, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 4, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 4, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 4, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Mar 2, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Mar 2, 2020 |
| 4 | Insider transaction | Feb 27, 2020 | Feb 25, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2020 | — |
| 4 | Insider transaction | Feb 12, 2020 | Feb 10, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 30, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 11, 2019 | — |
| SC 13D | Ownership over 5% (active) | Nov 25, 2019 | — |
| 4 | Insider transaction | Aug 30, 2019 | Aug 28, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| 4 | Insider transaction | Mar 8, 2019 | Mar 6, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2019 | — |
| 4 | Insider transaction | Dec 7, 2018 | Dec 6, 2018 |
| 4 | Insider transaction | Nov 29, 2018 | Nov 27, 2018 |
| 4 | Insider transaction | Nov 29, 2018 | Nov 27, 2018 |
| 4 | Insider transaction | Nov 29, 2018 | Nov 27, 2018 |
| 4 | Insider transaction | Nov 29, 2018 | Nov 27, 2018 |
| 3 | Initial insider ownership | Nov 29, 2018 | Nov 20, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 27, 2018 | — |
| 4 | Insider transaction | Nov 21, 2018 | Nov 20, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 17, 2018 | — |
| 4 | Insider transaction | Jun 4, 2018 | Jun 1, 2018 |
| 4 | Insider transaction | Jun 1, 2018 | Jun 1, 2018 |
| 4 | Insider transaction | Jun 1, 2018 | May 31, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | May 15, 2018 | May 11, 2018 |
| 4 | Insider transaction | Jan 19, 2018 | Jan 18, 2018 |
| 3 | Initial insider ownership | Jan 12, 2018 | Jan 4, 2018 |
| 3 | Initial insider ownership | Jan 12, 2018 | Jan 4, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 3, 2018 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 18, 2017 | — |
| 4 | Insider transaction | Dec 15, 2017 | Dec 13, 2017 |
| 4/A | Form 4/a | Dec 15, 2017 | Nov 22, 2017 |
| 4 | Insider transaction | Dec 15, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Nov 29, 2017 | Nov 27, 2017 |
| 4 | Insider transaction | Nov 27, 2017 | Nov 22, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | Aug 24, 2017 | — |
| 4 | Insider transaction | Jun 9, 2017 | Jun 7, 2017 |
| 4 | Insider transaction | Mar 21, 2017 | Mar 17, 2017 |
| 4 | Insider transaction | Mar 21, 2017 | Mar 17, 2017 |
| 4 | Insider transaction | Mar 21, 2017 | Mar 17, 2017 |
| 4 | Insider transaction | Mar 21, 2017 | Mar 17, 2017 |
| 4 | Insider transaction | Mar 21, 2017 | Mar 17, 2017 |
| 4 | Insider transaction | Feb 17, 2017 | Feb 15, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 3, 2017 | — |
| 4 | Insider transaction | Nov 18, 2016 | Nov 10, 2016 |
| 3 | Initial insider ownership | Apr 4, 2016 | Apr 1, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 18, 2016 | — |
| 4 | Insider transaction | Feb 23, 2016 | Feb 19, 2016 |
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.
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Company profile
- Industry
- Special Industry Machinery, NEC (SIC 3559)
- Listed as
- ASYS (Nasdaq)
- Fiscal year ends
- September 30
- Incorporated in
- AZ
- Headquarters
- Tempe, AZ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 720500
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.