AMTECH SYSTEMS INC — SD Filings
12 SD filings on record
This page lists all SD 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 12 SD 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 |
|---|---|---|---|---|
| SD | SD | 0000950170-25-079283 | May 30, 2025 | — |
| SD | SD | 0000950170-24-066021 | May 29, 2024 | — |
| SD | SD | 0000950170-23-025359 | May 31, 2023 | — |
| SD | SD | 0000950170-22-010767 | May 26, 2022 | — |
| SD | SD | 0001564590-21-029325 | May 21, 2021 | — |
| SD | SD | 0001564590-20-027618 | May 29, 2020 | — |
| SD | ASYS 2018 FORM SD | 0000720500-19-000021 | May 31, 2019 | — |
| SD | ASYS 2017 CONFLICT MINERALS REPORT | 0000720500-18-000034 | May 31, 2018 | — |
| SD | SD | 0000720500-17-000038 | May 31, 2017 | — |
| SD | SD | 0000720500-16-000103 | May 26, 2016 | — |
| SD | SD | 0000720500-15-000031 | May 29, 2015 | — |
| SD | SD | 0000720500-14-000018 | Jun 2, 2014 | — |