MICHAEL M. LUDWIG SEC EDGAR Filings (CIK 0001256949)

SEC EDGAR filings, ownership reports, and insider transactions for MICHAEL M. LUDWIG.

Business address
C/O Amtech Systems, Inc., 131 S Clark Drive, Tempe, AZ, 85288
Top holdings (ownership)
ASYS
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MICHAEL M. LUDWIG has filed 53 SEC EDGAR filings since 22 Oct 2003

Latest Filings

Recent SEC filings for MICHAEL M. LUDWIG including 4, 3, 4/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 07 Mar 2025 05 Mar 2025 000-11412
4 Open 4 document View SEC filing for 4 4 13 Mar 2024 11 Mar 2024 000-11412
4 Open 4 document View SEC filing for 4 4 08 Mar 2024 06 Mar 2024 000-11412
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024 000-11412
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Mar 2023 01 Mar 2023 000-11412
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Jan 2023 13 Jan 2023 000-11412
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 18 Jan 2023 13 Jan 2023 000-11412
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Feb 2021 12 Feb 2021 001-04347
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Feb 2021 07 Feb 2021 001-04347
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Sep 2020 17 Sep 2020 001-04347
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Feb 2020 12 Feb 2020 001-04347
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Feb 2020 07 Feb 2020 001-04347
4 Open 4 document View SEC filing for 4 19 Sep 2019 17 Sep 2019 001-04347
4/A Open 4/A document View SEC filing for 4/A 03 Apr 2019 07 Feb 2019 001-04347
4 Open 4 document View SEC filing for 4 11 Feb 2019 07 Feb 2019 001-04347
3/A Open 3/A document View SEC filing for 3/A 15 Oct 2018 17 Sep 2018 001-04347
4 Open 4 document View SEC filing for 4 19 Sep 2018 17 Sep 2018 001-04347
3 Open 3 document View SEC filing for 3 19 Sep 2018 17 Sep 2018 001-04347
4 Open 4 document View SEC filing for 4 FORM 4 22 Feb 2018 20 Feb 2018 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2018 15 Feb 2018 000-50307
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 12 Feb 2018 05 May 2015 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 12 Feb 2018 18 Sep 2015 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 14 Nov 2017 13 Nov 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 24 Aug 2017 23 Aug 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 22 Aug 2017 19 Aug 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 21 Jul 2017 20 Jul 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 31 May 2017 28 May 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 09 May 2017 05 May 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 03 May 2017 01 May 2017 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 22 Aug 2016 19 Aug 2016 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2016 31 May 2016 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 09 May 2016 05 May 2016 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 03 May 2016 02 May 2016 000-50307
4 Open 4 document View SEC filing for 4 FORM 4 08 Apr 2016 06 Apr 2016 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jun 2015 28 May 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 May 2015 06 May 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 May 2015 05 May 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 May 2015 08 Apr 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2015 27 Feb 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Feb 2015 10 Feb 2015 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 May 2014 06 May 2014 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 May 2014 05 May 2014 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Feb 2014 27 Feb 2014 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Feb 2014 10 Feb 2014 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Jan 2014 28 Jan 2014 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 May 2013 06 May 2013 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Feb 2013 11 Feb 2013 000-50307
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 27 Jul 2012 16 May 2011 000-50307
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 May 2012 04 May 2012 000-50307
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 18 May 2011 16 May 2011 000-50307

About this filer

MICHAEL M. LUDWIG files with the SEC under CIK 0001256949. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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