Filer Snapshot

Michael D. Porcelain SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001210707.

Entity Type

Individual

Total Filings

153

Latest Filing

13 Apr 2026

Industry

n/a

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Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 13 Apr 2026 for CIK 0001210707.

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Business address
68 South Service Road, Suite 230, Melville, NY, 11747
Top holdings (ownership)
CMTL and AIRI

Quick Takeaways

  • Michael D. Porcelain is an SEC filer tracked under CIK 0001210707.
  • 153 filings are listed on this profile.
  • Common form coverage includes 4, 4/A, SC 13D/A and more.

What Changed

  • Latest filing: 4 filed on 13 Apr 2026.
  • Report period: 10 Apr 2026.

Why This Matters

  • You can quote filing dates and form types directly from the SEC record on this page.
  • Use this profile before deeper ownership or insider analysis to confirm filing history context.

Source Evidence

Source: SEC Forms 3/4/5

4 filed on 13 Apr 2026 for CIK 0001210707.

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Return Loop

Why revisit this filer page

A newly filed 4 can change the filing history, ownership context, or next research path for Michael D. Porcelain.

Latest source-backed update
4 filed 13 Apr 2026
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Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 13 Apr 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Latest update

What changed recently for Michael D. Porcelain

Ownership report updated

Latest ownership report period: 10 Apr 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

13 Apr 2026

Page type

Ownership filings

Latest period

10 Apr 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 13 Apr 2026.

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Filer Overview

Michael D. Porcelain has filed 153 SEC EDGAR filings since 06 Aug 2003. Common forms include 4, 4/A, SC 13D/A, DFAN14A and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Michael D. Porcelain with direct links to document and filing folders.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 13 Apr 2026 10 Apr 2026 001-35927
4 Open 4 document View SEC filing for 4 17 Feb 2026 12 Feb 2026 001-35927
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026 001-35927
4 Open 4 document View SEC filing for 4 09 Dec 2025 08 Dec 2025 001-35927
4/A Open 4/A document View SEC filing for 4/A 08 Dec 2025 22 Oct 2025 001-35927
4 Open 4 document View SEC filing for 4 23 Oct 2025 22 Oct 2025 001-35927
4 Open 4 document View SEC filing for 4 29 Jul 2025 28 Jul 2025 001-35927
4 Open 4 document View SEC filing for 4 23 Apr 2025 22 Apr 2025 001-35927
4 Open 4 document View SEC filing for 4 08 Jan 2025 06 Jan 2025 001-35927
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT NO. 1 TO THE SCHEDULE 13D 18 Nov 2024
DFAN14A Open DFAN14A document View SEC filing for DFAN14A 04 Nov 2024
DFAN14A Open DFAN14A document View SEC filing for DFAN14A 31 Oct 2024
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Oct 2024
DFAN14A Open DFAN14A document View SEC filing for DFAN14A 17 Oct 2024
4 Open 4 document View SEC filing for 4 08 Oct 2024 07 Oct 2024 001-35927
DFAN14A Open DFAN14A document View SEC filing for DFAN14A 23 Sep 2024
SC 13D Open SC 13D document View SEC filing for SC 13D THE SCHEDULE 13D 20 Sep 2024
4 Open 4 document View SEC filing for 4 15 Aug 2024 13 Aug 2024 001-35927
4 Open 4 document View SEC filing for 4 05 Jul 2024 02 Jul 2024 001-35927
4 Open 4 document View SEC filing for 4 29 Apr 2024 25 Apr 2024 001-35927
4 Open 4 document View SEC filing for 4 10 Jan 2024 08 Jan 2024 001-35927
4 Open 4 document View SEC filing for 4 04 Oct 2023 04 Oct 2023 001-35927
4 Open 4 document View SEC filing for 4 20 Jul 2023 19 Jul 2023 001-35927
4/A Open 4/A document View SEC filing for 4/A OWNERSHIP DOCUMENT 22 Jun 2023 02 Jun 2023 001-35927
4/A Open 4/A document View SEC filing for 4/A 20 Jun 2023 02 Jun 2023 001-35927
4/A Open 4/A document View SEC filing for 4/A 20 Jun 2023 23 May 2023 001-35927
4 Open 4 document View SEC filing for 4 06 Jun 2023 02 Jun 2023 001-35927
4 Open 4 document View SEC filing for 4 25 May 2023 23 May 2023 001-35927
4 Open 4 document View SEC filing for 4 10 Jan 2023 09 Jan 2023 001-35927
4 Open 4 document View SEC filing for 4 04 Oct 2022 03 Oct 2022 001-35927
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 11 Aug 2022 09 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 11 Aug 2022 09 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 10 Aug 2022 09 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 10 Aug 2022 09 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 09 Aug 2022 08 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 05 Aug 2022 04 Aug 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 02 Aug 2022 31 Jul 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 01 Aug 2022 28 Jul 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 21 Jul 2022 21 Jul 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 18 Jul 2022 18 Jul 2022 000-07928
4 Open 4 document View SEC filing for 4 06 Jul 2022 06 Jul 2022 001-35927
4 Open 4 document View SEC filing for 4 07 Apr 2022 06 Apr 2022 001-35927
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 05 Jan 2022 03 Jan 2022 000-07928
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 05 Jan 2022 03 Jan 2022 000-07928
4 Open 4 document View SEC filing for 4 05 Jan 2022 03 Jan 2022 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2021 04 Oct 2021 000-07928
4 Open 4 document View SEC filing for 4 04 Oct 2021 01 Oct 2021 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Sep 2021 27 Sep 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Sep 2021 27 Sep 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Aug 2021 10 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2021 09 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2021 09 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2021 09 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2021 08 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Aug 2021 04 Aug 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Aug 2021 31 Jul 2021 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Aug 2021 31 Jul 2021 000-07928
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 08 Jul 2021 07 Jul 2021 001-35927
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 08 Apr 2021 06 Apr 2021 001-35927
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 13 Jan 2021 11 Jan 2021 001-35927
4 Open 4 document View SEC filing for 4 06 Jan 2021 04 Jan 2021 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2020 04 Oct 2020 000-07928
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 06 Oct 2020 05 Oct 2020 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Sep 2020 22 Sep 2020 000-07928
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Aug 2020 15 Jul 2020 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2020 09 Aug 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2020 09 Aug 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2020 09 Aug 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2020 08 Aug 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Aug 2020 04 Aug 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Aug 2020 31 Jul 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Aug 2020 31 Jul 2020 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 May 2020 28 May 2020 000-07928
4 Open 4 document View SEC filing for 4 13 Apr 2020 13 Apr 2020 001-35927
4 Open 4 document View SEC filing for 4 09 Jan 2020 07 Jan 2020 001-35927
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Dec 2019 01 Jul 2019 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Nov 2019 04 Nov 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Oct 2019 04 Oct 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Sep 2019 24 Sep 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2019 09 Aug 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2019 09 Aug 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2019 09 Aug 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Aug 2019 08 Aug 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2019 31 Jul 2019 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2019 31 Jul 2019 000-07928
4 Open 4 document View SEC filing for 4 04 Apr 2019 04 Apr 2019 001-35927
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Feb 2019 13 Feb 2019 001-35927
4 Open 4 document View SEC filing for 4 18 Jan 2019 04 Jan 2019 001-35927
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 17 Jan 2019 31 Dec 2018 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2018 04 Oct 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Sep 2018 25 Sep 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Sep 2018 23 Sep 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2018 09 Aug 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2018 09 Aug 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2018 08 Aug 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2018 31 Jul 2018 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2018 31 Jul 2018 000-07928
4 Open 4 document View SEC filing for 4 16 May 2018 14 May 2018 001-35927
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 30 Jan 2018 29 Jan 2018 001-35927
4 Open 4 document View SEC filing for 4 02 Jan 2018 02 Jan 2018 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2017 12 Dec 2017 000-07928
3 Open 3 document View SEC filing for 3 26 Oct 2017 23 Oct 2017 001-35927
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2017 02 Oct 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Sep 2017 26 Sep 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Sep 2017 23 Sep 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2017 09 Aug 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2017 09 Aug 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2017 31 Jul 2017 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Oct 2016 05 Oct 2016 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2016 09 Aug 2016 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2015 02 Oct 2015 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Sep 2015 23 Sep 2015 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Aug 2015 04 Aug 2015 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2014 02 Oct 2014 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Sep 2014 23 Sep 2014 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Aug 2014 04 Aug 2014 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Aug 2014 01 Aug 2014 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jun 2014 02 Jun 2014 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Dec 2013 19 Dec 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Oct 2013 16 Oct 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2013 02 Oct 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Aug 2013 01 Aug 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Jun 2013 05 Jun 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 May 2013 14 May 2013 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Jun 2012 06 Jun 2012 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Mar 2012 09 Mar 2012 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Feb 2012 17 Feb 2012 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Oct 2011 21 Oct 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2011 07 Oct 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Oct 2011 03 Oct 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Jun 2011 14 Jun 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jun 2011 02 Jun 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Apr 2011 30 Mar 2011 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Oct 2010 08 Oct 2010 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2010 06 Oct 2010 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Aug 2010 30 Jul 2010 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jun 2010 02 Jun 2010 000-07928
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2010 29 Apr 2010 000-07928

About this filer

Michael D. Porcelain files with the SEC under CIK 0001210707. This page aggregates EDGAR filings and related ownership activity.

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