AMTECH SYSTEMS INC — 4 Filings
331 4 filings on record
This page lists all 4 filings submitted to the SEC by AMTECH SYSTEMS INC (ASYS), sorted by most recent first. Each row links to the full filing on EdgarLookup. AMTECH SYSTEMS INC has filed 331 4 documents with the SEC since 1995. To view all SEC filings by AMTECH SYSTEMS INC, see the full filings list.
All
10-K
10-K/A
10-K405
10-K405/A
10-Q
10-Q/A
3
3/A
4
4/A
424B1
424B3
424B5
425
5
8-A12G
8-K
8-K/A
ARS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFM14A
DEFR14A
EFFECT
NT 10-K
NT 10-K/A
NT 10-Q
PRE 14A
REGDEX
RW
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | 4 | 0001193125-26-096467 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-024720 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | 4 | 0001193125-26-096720 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | 4 | 0001256949-26-000003 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-086997 | Sep 3, 2025 | Sep 2, 2025 |
| 4 | 4 | 0000950170-25-109373 | Aug 15, 2025 | Aug 8, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-050117 | May 16, 2025 | May 14, 2025 |
| 4 | 4 | 0000950170-25-073717 | May 16, 2025 | May 14, 2025 |
| 4 | 4 | 0000950170-25-043411 | Mar 21, 2025 | Mar 19, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-022964 | Mar 12, 2025 | Mar 10, 2025 |
| 4 | 4 | 0000950170-25-035589 | Mar 7, 2025 | Mar 5, 2025 |
| 4 | 4 | 0000950170-25-035616 | Mar 7, 2025 | Mar 5, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-021752 | Mar 7, 2025 | Mar 6, 2025 |
| 4 | 4 | 0000950170-25-035575 | Mar 7, 2025 | Mar 5, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-020979 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-014728 | Feb 18, 2025 | Feb 13, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-010932 | Feb 10, 2025 | Feb 7, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-128442 | Dec 13, 2024 | Dec 11, 2024 |
| 4 | 4 | 0000950170-24-098167 | Aug 16, 2024 | Aug 14, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-089070 | Aug 13, 2024 | Aug 9, 2024 |
| 4 | 4 | 0000950170-24-094908 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-061139 | May 14, 2024 | May 10, 2024 |
| 4 | 4 | 0000950170-24-033003 | Mar 18, 2024 | Mar 15, 2024 |
| 4 | 4 | 0000950170-24-030819 | Mar 13, 2024 | Mar 11, 2024 |
| 4 | 4 | 0000950170-24-028649 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | 4 | 0000950170-24-028633 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-032377 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-030469 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | 4 | 0000950170-24-024899 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | 4 | 0000950170-24-024901 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | 4 | 0000950170-24-024996 | Mar 4, 2024 | Feb 29, 2024 |
| 4 | 4 | 0000950170-24-015974 | Feb 15, 2024 | Feb 13, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-023568 | Feb 14, 2024 | Feb 13, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-127725 | Dec 20, 2023 | Dec 18, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-059189 | Dec 19, 2023 | Dec 18, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-047396 | Aug 25, 2023 | Aug 24, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-093900 | Aug 21, 2023 | Aug 17, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-046145 | Aug 16, 2023 | Aug 14, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-046105 | Aug 16, 2023 | Aug 14, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-045828 | Aug 15, 2023 | Aug 11, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-091290 | Aug 14, 2023 | Aug 11, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-041854 | Jul 7, 2023 | Jul 6, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-064616 | May 25, 2023 | May 23, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-031669 | May 23, 2023 | May 19, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-062245 | May 18, 2023 | May 16, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-029811 | May 16, 2023 | May 12, 2023 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-23-060715 | May 15, 2023 | May 12, 2023 |
| 4 | FORM 4 | 0001104659-23-032260 | Mar 14, 2023 | Mar 10, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-015454 | Mar 3, 2023 | Mar 1, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-015505 | Mar 3, 2023 | Mar 1, 2023 |