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 |
|---|---|---|---|
| SD | - | 2015-05-29 | - |
| Insider trade | 4 | 2015-05-27 | 2015-05-22 |
| Insider trade | 4 | 2015-05-27 | 2015-05-22 |
| Insider trade | 4 | 2015-05-26 | 2015-05-26 |
| Insider trade | 4 | 2015-05-22 | 2015-05-20 |
| Employee stock plan | S-8 | 2015-05-22 | - |
| Insider trade | 4 | 2015-05-21 | 2015-05-19 |
| Insider trade | 4 | 2015-05-13 | 2015-05-11 |
| Quarterly report | 10-Q | 2015-05-07 | 2015-03-31 |
| Insider trade | 4 | 2015-04-21 | 2015-04-17 |
| Insider trade | 4 | 2015-04-13 | 2015-04-09 |
| New insider ownership | 3 | 2015-04-13 | 2015-04-09 |
| Major company event (amended) | 8-K/A | 2015-04-13 | 2015-04-09 |
| Major company event | 8-K | 2015-04-10 | 2015-04-09 |
| Insider trade | 4 | 2015-03-31 | 2015-03-27 |
| Insider trade (amended) | 4/A | 2015-03-23 | 2015-03-17 |
| Insider trade | 4 | 2015-03-19 | 2015-03-17 |
| Insider trade | 4 | 2015-03-17 | 2015-03-13 |
| Insider trade | 4 | 2015-03-13 | 2015-03-11 |
| Annual report to shareholders | ARS | 2015-03-12 | 2014-09-30 |
| Major company event | 8-K | 2015-03-12 | 2015-03-09 |
| Proxy statement | DEF 14A | 2015-03-11 | 2015-04-09 |
| Insider trade | 4 | 2015-03-09 | 2015-03-05 |
| Passive ownership stake (update) | SC 13G/A | 2015-03-09 | - |
| Insider trade | 4 | 2015-03-04 | 2015-03-02 |
| Insider trade | 4 | 2015-02-25 | 2015-02-23 |
| Insider trade | 4 | 2015-02-25 | 2015-02-23 |
| New insider ownership | 3 | 2015-02-25 | 2015-02-20 |
| New insider ownership | 3 | 2015-02-25 | 2015-02-20 |
| New insider ownership | 3 | 2015-02-25 | 2015-02-20 |
| Passive ownership stake (update) | SC 13G/A | 2015-02-25 | - |
| Major company event | 8-K | 2015-02-23 | 2015-02-19 |
| Passive ownership stake (update) | SC 13G/A | 2015-02-17 | - |
| Activist ownership stake | SC 13D | 2015-02-09 | - |
| Insider trade | 4 | 2015-02-09 | 2015-01-30 |
| Insider trade | 4 | 2015-02-09 | 2015-01-30 |
| Insider trade | 4 | 2015-02-09 | 2015-01-30 |
| Quarterly report | 10-Q | 2015-02-05 | 2014-12-31 |
| Insider trade | 4 | 2015-02-02 | 2015-01-30 |
| New insider ownership | 3 | 2015-02-02 | 2015-01-30 |
| Major company event | 8-K | 2015-02-02 | 2015-01-29 |
| Insider trade | 4 | 2015-01-27 | 2015-01-23 |
| Proxy materials | DEFA14A | 2015-01-16 | - |
| 425 | - | 2015-01-16 | - |
| Major company event | 8-K | 2015-01-16 | 2015-01-16 |
| 425 | - | 2015-01-15 | - |
| 425 | - | 2015-01-13 | - |
| Passive ownership stake | SC 13G | 2015-01-05 | - |
| Insider trade | 4 | 2014-12-29 | 2014-12-24 |
| DEFM14A | - | 2014-12-23 | - |