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 | - | 2026-05-26 | - |
| New insider ownership | 3 | 2026-05-14 | 2025-12-16 |
| Major company event | 8-K | 2026-05-07 | 2026-05-05 |
| Quarterly report | 10-Q | 2026-05-07 | 2026-03-31 |
| Major company event | 8-K | 2026-05-07 | 2026-05-07 |
| Major company event | 8-K | 2026-04-30 | 2026-04-24 |
| EFFECT | - | 2026-03-23 | - |
| Company correspondence | CORRESP | 2026-03-18 | - |
| SEC correspondence | UPLOAD | 2026-03-16 | - |
| Securities registration | S-3 | 2026-03-13 | - |
| Insider trade | 4 | 2026-03-06 | 2026-03-04 |
| Insider trade | 4 | 2026-03-06 | 2026-03-04 |
| Insider trade | 4 | 2026-03-06 | 2026-03-04 |
| Insider trade | 4 | 2026-03-06 | 2026-03-04 |
| Major company event | 8-K | 2026-03-06 | 2026-03-04 |
| SCHEDULE 13G/A | - | 2026-02-13 | - |
| Quarterly report | 10-Q | 2026-02-05 | 2025-12-31 |
| Major company event | 8-K | 2026-02-05 | 2026-02-05 |
| Annual report to shareholders | ARS | 2026-01-23 | 2025-09-30 |
| Proxy statement | DEF 14A | 2026-01-23 | 2026-03-04 |
| SCHEDULE 13G/A | - | 2026-01-21 | - |
| Major company event | 8-K | 2025-12-15 | 2025-12-09 |
| Major company event | 8-K | 2025-12-10 | 2025-12-10 |
| Annual report | 10-K | 2025-12-10 | 2025-09-30 |
| Major company event | 8-K | 2025-12-01 | 2025-11-26 |
| Major company event | 8-K | 2025-12-01 | 2025-12-01 |
| Insider trade | 4 | 2025-09-03 | 2025-09-02 |
| Insider trade | 4 | 2025-08-15 | 2025-08-08 |
| Quarterly report | 10-Q | 2025-08-06 | 2025-06-30 |
| Major company event | 8-K | 2025-08-06 | 2025-08-06 |
| SD | - | 2025-05-30 | - |
| Insider trade | 4 | 2025-05-16 | 2025-05-14 |
| Insider trade | 4 | 2025-05-16 | 2025-05-14 |
| Major company event | 8-K | 2025-05-12 | 2025-05-12 |
| Quarterly report | 10-Q | 2025-05-12 | 2025-03-31 |
| Major company event | 8-K | 2025-04-09 | 2025-04-09 |
| SCHEDULE 13G/A | - | 2025-04-04 | - |
| Insider trade | 4 | 2025-03-21 | 2025-03-19 |
| Employee stock plan | S-8 | 2025-03-19 | - |
| Insider trade | 4 | 2025-03-12 | 2025-03-10 |
| Insider trade | 4 | 2025-03-07 | 2025-03-06 |
| Insider trade | 4 | 2025-03-07 | 2025-03-05 |
| Insider trade | 4 | 2025-03-07 | 2025-03-05 |
| Insider trade | 4 | 2025-03-07 | 2025-03-05 |
| Major company event | 8-K | 2025-03-07 | 2025-03-05 |
| Insider trade | 4 | 2025-03-05 | 2025-03-03 |
| Proxy materials | DEFA14A | 2025-02-24 | - |
| SCHEDULE 13D/A | - | 2025-02-18 | - |
| Insider trade | 4 | 2025-02-18 | 2025-02-13 |
| SCHEDULE 13G/A | - | 2025-02-12 | - |