AMTECH SYSTEMS INC — All Filings
949 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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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 |
|---|---|---|---|---|
| 8-K | 8-K | 0000950170-25-008328 | Jan 23, 2025 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-128442 | Dec 13, 2024 | Dec 11, 2024 |
| 10-K | 10-K | 0000950170-24-135825 | Dec 12, 2024 | Sep 30, 2024 |
| 8-K | 8-K | 0000950170-24-134499 | Dec 9, 2024 | — |
| SC 13G | — | 0001325447-24-000034 | Nov 12, 2024 | — |
| SC 13G/A | SEC SCHEDULE 13G | 0000354204-24-004700 | Oct 31, 2024 | — |
| SC 13G/A | — | 0000906304-24-000084 | Oct 15, 2024 | — |
| 8-K | 8-K | 0000950170-24-107300 | Sep 17, 2024 | Sep 11, 2024 |
| SC 13G/A | — | 0001398344-24-017646 | Sep 6, 2024 | — |
| 4 | 4 | 0000950170-24-098167 | Aug 16, 2024 | Aug 14, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-089070 | Aug 13, 2024 | Aug 9, 2024 |
| 3 | 3 | 0000950170-24-094905 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094908 | Aug 9, 2024 | Aug 8, 2024 |
| 8-K | 8-K | 0000950170-24-092969 | Aug 7, 2024 | Aug 6, 2024 |
| 10-Q | 10-Q | 0000950170-24-092822 | Aug 7, 2024 | Jun 30, 2024 |
| SD | SD | 0000950170-24-066021 | May 29, 2024 | — |
| SC 13D/A | SC 13D/A | 0001104659-24-061136 | May 14, 2024 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-061139 | May 14, 2024 | May 10, 2024 |
| 10-Q | 10-Q | 0000950170-24-055725 | May 8, 2024 | Mar 31, 2024 |
| 8-K | 8-K | 0000950170-24-055712 | May 8, 2024 | — |
| 4 | 4 | 0000950170-24-033003 | Mar 18, 2024 | Mar 15, 2024 |
| 4 | 4 | 0000950170-24-030819 | Mar 13, 2024 | Mar 11, 2024 |
| 8-K | 8-K | 0000950170-24-028631 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | 4 | 0000950170-24-028633 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | 4 | 0000950170-24-028649 | Mar 8, 2024 | Mar 6, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-032377 | Mar 8, 2024 | Mar 6, 2024 |
| 8-K | 8-K | 0000950170-24-025892 | Mar 5, 2024 | Mar 1, 2024 |
| 4 | 4 | 0000950170-24-024996 | Mar 4, 2024 | Feb 29, 2024 |
| 4 | 4 | 0000950170-24-024901 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-030469 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | 4 | 0000950170-24-024899 | Mar 4, 2024 | Mar 1, 2024 |
| 8-K | 8-K | 0000950170-24-023120 | Feb 29, 2024 | — |
| UPLOAD | — | 0000000000-24-001832 | Feb 15, 2024 | — |
| 4 | 4 | 0000950170-24-015974 | Feb 15, 2024 | Feb 13, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-24-023568 | Feb 14, 2024 | Feb 13, 2024 |
| SC 13G/A | ASYS 13GA 2023 FILING | 0001591546-24-000002 | Feb 12, 2024 | — |
| 8-K | 8-K | 0000950170-24-013261 | Feb 9, 2024 | — |
| SC 13G/A | SEC SCHEDULE 13G | 0000354204-24-003104 | Feb 9, 2024 | — |
| 10-Q | 10-Q | 0000950170-24-013277 | Feb 9, 2024 | Dec 31, 2023 |
| SC 13G | — | 0001398344-24-002399 | Feb 9, 2024 | — |
| CORRESP | — | 0000950170-24-013146 | Feb 9, 2024 | — |
| UPLOAD | — | 0000000000-24-001253 | Feb 1, 2024 | — |
| ARS | ARS | 0000950170-24-007034 | Jan 24, 2024 | Sep 30, 2023 |
| SC 13G/A | — | 0000906304-24-000001 | Jan 23, 2024 | — |
| DEF 14A | DEF 14A | 0000950170-24-005875 | Jan 19, 2024 | Mar 6, 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 |
| 10-K | 10-K | 0000950170-23-070422 | Dec 14, 2023 | Sep 30, 2023 |
| 8-K | 8-K | 0000950170-23-070474 | Dec 14, 2023 | — |
| 8-K | 8-K | 0000950170-23-070049 | Dec 13, 2023 | — |