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 |
| 8-K |
Current report
Officer or director change
|
Aug 5, 2026 | Aug 4, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jun 3, 2026 | Jun 1, 2026 |
| 424B5 | Prospectus supplement | Jun 3, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 2, 2026 | — |
| S-3MEF | Filing | Jun 1, 2026 | — |
| 424B5 | Prospectus supplement | Jun 1, 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 |
| SD | Specialized disclosure (conflict minerals) | May 26, 2026 | — |
| 3 | Initial insider ownership | May 14, 2026 | Dec 16, 2025 |
| 8-K |
Current report
Officer or director change
|
May 7, 2026 | May 5, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 30, 2026 | Apr 24, 2026 |
| EFFECT | Filing | Mar 23, 2026 | — |
| CORRESP | Letter to the SEC | Mar 18, 2026 | — |
| UPLOAD | Letter from the SEC | Mar 16, 2026 | — |
| S-3 | Shelf registration | Mar 13, 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 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Mar 6, 2026 | Mar 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 10-Q | Quarterly report | Feb 5, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2026 | Feb 5, 2026 |
| ARS | Annual report to shareholders | Jan 23, 2026 | Sep 30, 2025 |
| DEF 14A | Proxy statement | Jan 23, 2026 | Mar 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Dec 15, 2025 | Dec 9, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Dec 10, 2025 | Dec 10, 2025 |
| 10-K | Annual report | Dec 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 1, 2025 | Nov 26, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 1, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Aug 15, 2025 | Aug 8, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 9, 2025 | Apr 9, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 4, 2025 | — |
| 4 | Insider transaction | Mar 21, 2025 | Mar 19, 2025 |
| S-8 | Employee stock plan registration | 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 |
| 8-K |
Current report
Shareholder vote results
|
Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| DEFA14A | Additional proxy material | Feb 24, 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 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2025 | Feb 5, 2025 |
| 10-Q | Quarterly report | Feb 5, 2025 | Dec 31, 2024 |
| 3 | Initial insider ownership | Feb 3, 2025 | Feb 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 28, 2025 | — |
| ARS | Annual report to shareholders | Jan 24, 2025 | Sep 30, 2024 |
| DEF 14A | Proxy statement | Jan 24, 2025 | Mar 5, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 23, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 10-K | Annual report | Dec 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Dec 9, 2024 | Dec 9, 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 | — |
| 8-K |
Current report
Agreement ended
|
Sep 17, 2024 | Sep 11, 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 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Aug 7, 2024 | Aug 6, 2024 |
| 10-Q | Quarterly report | Aug 7, 2024 | Jun 30, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2024 | — |
| 4 | Insider transaction | May 14, 2024 | May 10, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 14, 2024 | — |
| 10-Q | Quarterly report | May 8, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 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 |
| 8-K |
Current report
Shareholder vote results
|
Mar 8, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Mar 8, 2024 | Mar 6, 2024 |
| 8-K |
Current report
Auditor change
|
Mar 5, 2024 | Mar 1, 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 |
| 8-K |
Current report
Officer or director change
|
Feb 29, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 13, 2024 |
| UPLOAD | Letter from the SEC | Feb 15, 2024 | — |
| 4 | Insider transaction | Feb 14, 2024 | Feb 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| 10-Q | Quarterly report | Feb 9, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 9, 2024 | Feb 9, 2024 |
| CORRESP | Letter to the SEC | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2024 | — |
| UPLOAD | Letter from the SEC | Feb 1, 2024 | — |
| ARS | Annual report to shareholders | Jan 24, 2024 | Sep 30, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2024 | — |
| DEF 14A | Proxy statement | Jan 19, 2024 | Mar 6, 2024 |
| 4 | Insider transaction | Dec 20, 2023 | Dec 18, 2023 |
| 4 | Insider transaction | Dec 19, 2023 | Dec 18, 2023 |
| 8-K |
Current report
Results of operations
|
Dec 14, 2023 | Dec 14, 2023 |
| 10-K | Annual report | Dec 14, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Dec 13, 2023 | Dec 13, 2023 |
| 8-K |
Current report
Material agreement
|
Dec 11, 2023 | Dec 5, 2023 |
| 4 | Insider transaction | Aug 25, 2023 | Aug 24, 2023 |
| 4 | Insider transaction | Aug 21, 2023 | Aug 17, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 17, 2023 | Aug 8, 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 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Aug 9, 2023 | Aug 8, 2023 |
| 4 | Insider transaction | Jul 7, 2023 | Jul 6, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 31, 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 |
| 10-Q | Quarterly report | May 10, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 10, 2023 | May 10, 2023 |
| 8-K/A | Amended current report | Apr 3, 2023 | Jan 17, 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 |
| 8-K |
Current report
Shareholder vote results
|
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 | — |
| 10-Q | Quarterly report | Feb 8, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 8, 2023 | Feb 7, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| DEF 14A | Proxy statement | Jan 20, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 13, 2023 |
| 3 | Initial insider ownership | Jan 18, 2023 | Jan 13, 2023 |
| 8-K |
Current report
Officer or director change
|
Jan 18, 2023 | Jan 13, 2023 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Regulation FD disclosure
|
Jan 17, 2023 | Jan 17, 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 |
| 10-K | Annual report | Nov 30, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 30, 2022 | Nov 30, 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 |
| 8-K |
Current report
Officer or director change
|
Aug 26, 2022 | Aug 24, 2022 |
| 4 | Insider transaction | Aug 25, 2022 | Aug 23, 2022 |
| 4 | Insider transaction | Aug 25, 2022 | Aug 24, 2022 |
| 10-Q | Quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Material agreement, Results of operations, Officer or director change, Bylaw or fiscal year change
|
Aug 15, 2022 | Aug 9, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 26, 2022 | — |
| 4 | Insider transaction | May 17, 2022 | May 13, 2022 |
| 10-Q | Quarterly report | May 11, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
May 11, 2022 | May 11, 2022 |
| 8-K |
Current report
Material agreement
|
Apr 28, 2022 | Apr 22, 2022 |
| S-8 | Employee stock plan registration | Mar 25, 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 |
| 8-K |
Current report
Shareholder vote results
|
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 |
| 10-Q | Quarterly report | Feb 14, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 14, 2022 | Feb 10, 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 | — |
| DEF 14A | Proxy statement | Jan 18, 2022 | Mar 2, 2022 |
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.