AMTECH SYSTEMS, INC. Form SCHEDULE 13G: Beneficial ownership report (passive)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2026-08-06: Form SCHEDULE 13G/A; Description Beneficial ownership report (passive); Document xslSCHEDULE_13G_X02/primary_doc.xml.
- 2026-07-27: Form SCHEDULE 13G; Description Beneficial ownership report (passive); Document xslSCHEDULE_13G_X02/primary_doc.xml.
- 2026-02-13: Form SCHEDULE 13G/A; Description Beneficial ownership report (passive); Document xslSCHEDULE_13G_X01/primary_doc.xml.
- 2026-01-21: Form SCHEDULE 13G/A; Description Beneficial ownership report (passive); Document xslSCHEDULE_13G_X01/primary_doc.xml.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2026-08-06 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X02/primary_doc.xml | |
| 2026-07-27 | SCHEDULE 13G | Beneficial ownership report (passive) | xslSCHEDULE_13G_X02/primary_doc.xml | |
| 2026-02-13 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml | |
| 2026-01-21 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml | |
| 2025-04-04 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml | |
| 2025-02-12 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml | |
| 2025-02-11 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml | |
| 2025-01-28 | SCHEDULE 13G/A | Beneficial ownership report (passive) | xslSCHEDULE_13G_X01/primary_doc.xml |
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