ASYS - Company ID 0000720500
AMTECH SYSTEMS INC has filed 957 public company documents 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.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| SD | SD | 1mo ago2026-05-26 | - | View filing |
| 3 | New insider ownership | 2mo ago2026-05-14 | 2025-12-16 | View filing |
| 8-K | Major company event | 2mo ago2026-05-07 | 2026-05-05 | View filing |
| 10-Q | Quarterly report | 2mo ago2026-05-07 | 2026-03-31 | View filing |
| 8-K | Major company event | 2mo ago2026-05-07 | 2026-05-07 | View filing |
| 8-K | Major company event | 2mo ago2026-04-30 | 2026-04-24 | View filing |
| EFFECT | EFFECT | 3mo ago2026-03-23 | - | View filing |
| CORRESP | Company correspondence | 3mo ago2026-03-18 | - | View filing |
| UPLOAD | SEC correspondence | 4mo ago2026-03-16 | - | View filing |
| S-3 | Securities registration | 4mo ago2026-03-13 | - | View filing |
| 4 | Insider trade | 4mo ago2026-03-06 | 2026-03-04 | View filing |
| 4 | Insider trade | 4mo ago2026-03-06 | 2026-03-04 | View filing |
| 4 | Insider trade | 4mo ago2026-03-06 | 2026-03-04 | View filing |
| 4 | Insider trade | 4mo ago2026-03-06 | 2026-03-04 | View filing |
| 8-K | Major company event | 4mo ago2026-03-06 | 2026-03-04 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 5mo ago2026-02-13 | - | View filing |
| 10-Q | Quarterly report | 5mo ago2026-02-05 | 2025-12-31 | View filing |
| 8-K | Major company event | 5mo ago2026-02-05 | 2026-02-05 | View filing |
| ARS | Annual report to shareholders | 5mo ago2026-01-23 | 2025-09-30 | View filing |
| DEF 14A | Proxy statement | 5mo ago2026-01-23 | 2026-03-04 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 5mo ago2026-01-21 | - | View filing |
| 8-K | Major company event | 7mo ago2025-12-15 | 2025-12-09 | View filing |
| 8-K | Major company event | 7mo ago2025-12-10 | 2025-12-10 | View filing |
| 10-K | Annual report | 7mo ago2025-12-10 | 2025-09-30 | View filing |
| 8-K | Major company event | 7mo ago2025-12-01 | 2025-11-26 | View filing |
| 8-K | Major company event | 7mo ago2025-12-01 | 2025-12-01 | View filing |
| 4 | Insider trade | 10mo ago2025-09-03 | 2025-09-02 | View filing |
| 4 | Insider trade | 11mo ago2025-08-15 | 2025-08-08 | View filing |
| 10-Q | Quarterly report | 11mo ago2025-08-06 | 2025-06-30 | View filing |
| 8-K | Major company event | 11mo ago2025-08-06 | 2025-08-06 | View filing |
| SD | SD | 1y ago2025-05-30 | - | View filing |
| 4 | Insider trade | 1y ago2025-05-16 | 2025-05-14 | View filing |
| 4 | Insider trade | 1y ago2025-05-16 | 2025-05-14 | View filing |
| 8-K | Major company event | 1y ago2025-05-12 | 2025-05-12 | View filing |
| 10-Q | Quarterly report | 1y ago2025-05-12 | 2025-03-31 | View filing |
| 8-K | Major company event | 1y ago2025-04-09 | 2025-04-09 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1y ago2025-04-04 | - | View filing |
| 4 | Insider trade | 1y ago2025-03-21 | 2025-03-19 | View filing |
| S-8 | Employee stock plan | 1y ago2025-03-19 | - | View filing |
| 4 | Insider trade | 1y ago2025-03-12 | 2025-03-10 | View filing |
| 4 | Insider trade | 1y ago2025-03-07 | 2025-03-06 | View filing |
| 4 | Insider trade | 1y ago2025-03-07 | 2025-03-05 | View filing |
| 4 | Insider trade | 1y ago2025-03-07 | 2025-03-05 | View filing |
| 4 | Insider trade | 1y ago2025-03-07 | 2025-03-05 | View filing |
| 8-K | Major company event | 1y ago2025-03-07 | 2025-03-05 | View filing |
| 4 | Insider trade | 1y ago2025-03-05 | 2025-03-03 | View filing |
| DEFA14A | Proxy materials | 1y ago2025-02-24 | - | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 1y ago2025-02-18 | - | View filing |
| 4 | Insider trade | 1y ago2025-02-18 | 2025-02-13 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1y ago2025-02-12 | - | View filing |