AMTECH SYSTEMS INC — SC 13G Filings
23 SC 13G filings on record
This page lists all SC 13G 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 23 SC 13G 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 |
|---|---|---|---|---|
| SC 13G | — | 0001325447-24-000034 | Nov 12, 2024 | — |
| SC 13G | — | 0001398344-24-002399 | Feb 9, 2024 | — |
| SC 13G | SCHEDULE 13G | 0001104659-21-017437 | Feb 10, 2021 | — |
| SC 13G | — | 0001591546-20-000007 | Feb 12, 2020 | — |
| SC 13G | SCHEDULE 13G | 0001258897-19-001131 | Feb 8, 2019 | — |
| SC 13G | — | 0000906304-15-000017 | Jan 5, 2015 | — |
| SC 13G | SCHEDULE 13G | 0000893838-13-000027 | Mar 27, 2013 | — |
| SC 13G | SCHEDULE 13G | 0000354204-11-000844 | Feb 11, 2011 | — |
| SC 13G | — | 0001085936-10-000011 | Feb 12, 2010 | — |
| SC 13G | SCHEDULE 13G | 0001193125-10-012071 | Jan 25, 2010 | — |
| SC 13G | SCHEDULE 13G | 0001193125-09-028545 | Feb 13, 2009 | — |
| SC 13G | — | 0001085936-09-000011 | Feb 13, 2009 | — |
| SC 13G | — | 0000769993-09-000173 | Feb 5, 2009 | — |
| SC 13G | — | 0001085936-08-000020 | Feb 15, 2008 | — |
| SC 13G | SCHEDULE 13G | 0001193125-08-016372 | Jan 31, 2008 | — |
| SC 13G | AMTECH SYSTEMS, INC. | 0000902664-07-003431 | Nov 26, 2007 | — |
| SC 13G | — | 0001044321-07-000127 | Mar 9, 2007 | — |
| SC 13G | SEC FILING | 0000902219-07-000625 | Feb 14, 2007 | — |
| SC 13G | SEC FILING | 0000846087-07-000003 | Feb 14, 2007 | — |
| SC 13G | — | 0000950138-07-000096 | Feb 9, 2007 | — |
| SC 13G | AMTECHSYSTEMSINC13G | 0001056568-06-000070 | Jun 5, 2006 | — |
| SC 13G | — | 0000919574-01-000144 | Feb 13, 2001 | — |
| SC 13G | SCHEDULE 13G | 0000950147-97-000637 | Sep 12, 1997 | — |