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 |
|---|---|---|---|
| Major company event | 8-K | 2016-11-17 | 2016-11-17 |
| Major company event | 8-K | 2016-11-16 | 2016-11-10 |
| Quarterly report | 10-Q | 2016-08-04 | 2016-06-30 |
| SD | - | 2016-05-26 | - |
| Quarterly report | 10-Q | 2016-05-05 | 2016-03-31 |
| New insider ownership | 3 | 2016-04-04 | 2016-04-01 |
| Activist ownership stake (update) | SC 13D/A | 2016-03-18 | - |
| SEC correspondence | UPLOAD | 2016-03-18 | - |
| Major company event | 8-K | 2016-03-14 | 2016-03-08 |
| DEFR14A | - | 2016-03-03 | - |
| Annual report (amended) | 10-K/A | 2016-03-03 | 2015-09-30 |
| Major company event | 8-K | 2016-02-25 | 2016-02-19 |
| Insider trade | 4 | 2016-02-23 | 2016-02-19 |
| Company correspondence | CORRESP | 2016-02-17 | - |
| Quarterly report | 10-Q | 2016-02-09 | 2015-12-31 |
| Major company event | 8-K | 2016-02-09 | 2016-02-09 |
| Major company event | 8-K | 2016-02-04 | 2016-02-04 |
| SEC correspondence | UPLOAD | 2016-02-02 | - |
| Activist ownership stake | SC 13D | 2016-01-25 | - |
| Proxy statement | DEF 14A | 2016-01-25 | 2016-03-09 |
| Insider trade | 4 | 2016-01-20 | 2016-01-15 |
| Major company event | 8-K | 2016-01-20 | 2016-01-15 |
| Annual insider summary | 5 | 2016-01-11 | 2015-09-30 |
| Passive ownership stake (update) | SC 13G/A | 2016-01-07 | - |
| Major company event | 8-K | 2015-12-09 | 2015-12-08 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Insider trade | 4 | 2015-11-19 | 2015-11-17 |
| Major company event | 8-K | 2015-11-19 | 2015-11-17 |
| Annual report | 10-K | 2015-11-19 | 2015-09-30 |
| Insider trade | 4 | 2015-11-04 | 2015-11-02 |
| Insider trade | 4 | 2015-10-20 | 2015-10-16 |
| Insider trade | 4 | 2015-10-13 | 2015-10-08 |
| Major company event | 8-K | 2015-10-08 | 2015-10-08 |
| Major company event | 8-K | 2015-10-05 | 2015-10-01 |
| Insider trade | 4 | 2015-09-15 | 2015-09-15 |
| New insider ownership | 3 | 2015-08-27 | 2015-08-27 |
| Passive ownership stake (update) | SC 13G/A | 2015-08-27 | - |
| Insider trade | 4 | 2015-08-26 | 2015-08-24 |
| Quarterly report | 10-Q | 2015-08-06 | 2015-06-30 |
| Major company event | 8-K | 2015-07-22 | 2015-07-17 |
| Insider trade | 4 | 2015-06-26 | 2015-06-24 |
| Insider trade | 4 | 2015-06-18 | 2015-06-16 |
| New insider ownership | 3 | 2015-06-12 | 2015-06-03 |
| Passive ownership stake (update) | SC 13G/A | 2015-06-12 | - |