AMTECH SYSTEMS INC reports

Company location: Tempe, AZ
Fiscal year end: 30 September

AMTECH SYSTEMS INC has filed 967 SEC EDGAR filings since 15 May 1995

Filter by type:
10-K
10-Q
8-K
SC13D
SC13G

SEC filing history

Showing 126-150 of 672 matching filings.

Per page

25

Current page

6

4

OWNERSHIP DOCUMENT

Filing date: 14 Aug 2023
Reporting date: 11 Aug 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-11412

10-Q

Filing date: 09 Aug 2023
Reporting date: 30 Jun 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-11412

8-K

Filing date: 09 Aug 2023
Reporting date: 08 Aug 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 07 Jul 2023
Reporting date: 06 Jul 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SD File 000-11412

SD

Filing date: 31 May 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 25 May 2023
Reporting date: 23 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 23 May 2023
Reporting date: 19 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 18 May 2023
Reporting date: 16 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 16 May 2023
Reporting date: 12 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 15 May 2023
Reporting date: 12 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-11412

10-Q

Filing date: 10 May 2023
Reporting date: 31 Mar 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-11412

8-K

Filing date: 10 May 2023
Reporting date: 10 May 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K/A File 000-11412

8-K/A

Filing date: 03 Apr 2023
Reporting date: 17 Jan 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 14 Mar 2023
Reporting date: 10 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2023
Reporting date: 01 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2023
Reporting date: 01 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-11412

8-K

Filing date: 03 Mar 2023
Reporting date: 01 Mar 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 03 Mar 2023
Reporting date: 01 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 03 Mar 2023
Reporting date: 01 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 13 Feb 2023
Reporting date: 10 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-39482

ASYS 13GA FILING

Filing date: 13 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-39482

SEC SCHEDULE 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-11412

10-Q

Filing date: 08 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-11412

8-K

Filing date: 08 Feb 2023
Reporting date: 07 Feb 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SC 13G/A File 005-39482

SC 13G/A filing

Filing date: 07 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .