ASYS - CIK 0000720500
AMTECH SYSTEMS INC has filed 957 documents with the SEC between 1995 and 2026. The most frequent type is insider trade (331 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Passive ownership stake (update) | SC 13G/A | 2009-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2009-02-13 | - |
| Annual report to shareholders | ARS | 2009-02-12 | 2008-09-30 |
| Quarterly report | 10-Q | 2009-02-09 | 2008-12-31 |
| Passive ownership stake | SC 13G | 2009-02-05 | - |
| Proxy statement | DEF 14A | 2009-01-29 | 2009-03-12 |
| Major company event | 8-K | 2009-01-05 | 2009-01-02 |
| Major company event | 8-K | 2008-12-15 | 2008-12-15 |
| Major company event | 8-K | 2008-12-12 | 2008-12-09 |
| Insider trade | 4 | 2008-12-11 | 2008-12-09 |
| Insider trade | 4 | 2008-12-11 | 2008-12-09 |
| Insider trade | 4 | 2008-12-11 | 2008-12-09 |
| Annual report | 10-K | 2008-12-10 | 2008-09-30 |
| Activist ownership stake (update) | SC 13D/A | 2008-09-30 | - |
| Quarterly report | 10-Q | 2008-08-13 | 2008-06-30 |
| Activist ownership stake | SC 13D | 2008-07-28 | - |
| Insider trade | 4 | 2008-07-21 | 2008-07-18 |
| Insider trade | 4 | 2008-05-28 | 2008-05-27 |
| Insider trade | 4 | 2008-05-15 | 2008-05-15 |
| Quarterly report | 10-Q | 2008-05-14 | 2008-03-31 |
| Insider trade | 4 | 2008-03-26 | 2008-03-14 |
| Insider trade | 4 | 2008-03-26 | 2008-03-14 |
| Insider trade | 4 | 2008-03-26 | 2008-03-14 |
| Insider trade | 4 | 2008-03-20 | 2008-03-14 |
| Major company event | 8-K | 2008-03-11 | 2008-03-10 |
| Insider trade | 4 | 2008-02-22 | 2008-02-20 |
| Insider trade | 4 | 2008-02-19 | 2008-02-13 |
| Passive ownership stake | SC 13G | 2008-02-15 | - |
| Passive ownership stake (update) | SC 13G/A | 2008-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2008-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2008-02-14 | - |
| Quarterly report | 10-Q | 2008-02-13 | 2007-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2008-02-13 | - |
| Passive ownership stake | SC 13G | 2008-01-31 | - |
| Proxy statement | DEF 14A | 2008-01-28 | 2008-03-13 |
| Passive ownership stake (update) | SC 13G/A | 2008-01-18 | - |
| New insider ownership | 3 | 2008-01-18 | 2007-12-12 |
| Major company event | 8-K | 2008-01-08 | 2008-01-04 |
| Insider trade | 4 | 2007-12-27 | 2007-12-21 |
| Insider trade | 4 | 2007-12-21 | 2007-12-20 |
| Insider trade | 4 | 2007-12-20 | 2007-12-18 |
| Annual report | 10-K | 2007-12-12 | 2007-09-30 |
| Major company event | 8-K | 2007-12-12 | 2007-12-06 |
| Insider trade | 4 | 2007-12-10 | 2007-12-06 |
| Insider trade | 4 | 2007-12-10 | 2007-12-06 |
| Insider trade | 4 | 2007-12-10 | 2007-12-06 |
| Passive ownership stake | SC 13G | 2007-11-26 | - |
| Insider trade | 4 | 2007-11-20 | 2007-11-16 |
| 424B1 | - | 2007-11-16 | - |
| EFFECT | - | 2007-11-15 | - |