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 |
|---|---|---|---|
| Proxy statement | DEF 14A | 2001-02-20 | 2001-03-15 |
| Quarterly report | 10-Q | 2001-02-14 | 2000-12-31 |
| Passive ownership stake | SC 13G | 2001-02-13 | - |
| Annual report (amended) | 10-K/A | 2001-01-30 | 2000-09-30 |
| 10-K405 | - | 2000-12-22 | 2000-09-30 |
| 424B3 | - | 2000-10-31 | - |
| Securities registration | S-3 | 2000-10-02 | - |
| Major company event | 8-K | 2000-09-22 | 2000-09-13 |
| Employee stock plan | S-8 | 2000-09-19 | - |
| Quarterly report | 10-Q | 2000-08-14 | 2000-06-30 |
| Insider trade | 4 | 2000-06-08 | 2000-05-18 |
| Quarterly report | 10-Q | 2000-05-15 | 2000-03-31 |
| Annual report (amended) | 10-K/A | 2000-03-03 | 1999-09-30 |
| Quarterly report | 10-Q | 2000-02-15 | 1999-12-31 |
| NT 10-Q | - | 2000-02-15 | 1999-12-31 |
| Proxy statement | DEF 14A | 2000-02-10 | 2000-02-25 |
| 10-K405 | - | 1999-12-23 | 1999-09-30 |
| Quarterly report | 10-Q | 1999-08-16 | 1999-06-30 |
| 8-A12G | - | 1999-06-08 | - |
| Major company event | 8-K | 1999-06-01 | 1999-05-17 |
| Quarterly report | 10-Q | 1999-05-17 | 1999-03-31 |
| Quarterly report | 10-Q | 1999-02-16 | 1998-12-31 |
| Proxy statement | DEF 14A | 1999-01-28 | 1999-02-26 |
| PRE 14A | - | 1999-01-15 | 1999-02-26 |
| 10-K405 | - | 1998-12-24 | 1998-09-30 |
| Quarterly report | 10-Q | 1998-08-14 | 1998-06-30 |
| Quarterly report | 10-Q | 1998-05-14 | 1998-03-31 |
| Quarterly report (amended) | 10-Q/A | 1998-02-19 | 1997-12-31 |
| Quarterly report | 10-Q | 1998-02-17 | 1997-12-31 |
| Annual report (amended) | 10-K/A | 1998-02-04 | 1997-09-30 |
| Proxy statement | DEF 14A | 1998-01-29 | 1998-03-20 |
| PRE 14A | - | 1998-01-12 | 1998-02-27 |
| 10-K405 | - | 1997-12-29 | 1997-09-30 |
| Annual insider summary | 5 | 1997-11-14 | 1997-11-13 |
| Passive ownership stake | SC 13G | 1997-09-12 | - |
| Major company event (amended) | 8-K/A | 1997-09-09 | 1997-08-07 |
| Quarterly report | 10-Q | 1997-08-19 | 1997-06-30 |
| NT 10-Q | - | 1997-08-14 | 1997-06-30 |
| Major company event | 8-K | 1997-07-09 | 1997-07-01 |
| Quarterly report | 10-Q | 1997-05-15 | 1997-03-31 |
| Quarterly report | 10-Q | 1997-02-14 | 1996-12-31 |
| Proxy statement | DEF 14A | 1997-01-30 | 1997-02-28 |
| 10-K405 | - | 1996-12-30 | 1996-09-30 |
| Quarterly report | 10-Q | 1996-08-14 | 1996-06-30 |
| Securities registration | S-3 | 1996-08-14 | - |
| Securities registration | S-3 | 1996-08-09 | - |
| Employee stock plan | S-8 | 1996-08-09 | - |
| Employee stock plan | S-8 | 1996-08-09 | - |
| Quarterly report | 10-Q | 1996-05-21 | 1996-03-31 |
| NT 10-Q | - | 1996-05-15 | 1996-03-31 |