Filer Snapshot

John Downing SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001232878.

Entity Type

Individual

Total Filings

146

Latest Filing

23 Feb 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 23 Feb 2026 for CIK 0001232878.

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Business address
310 Littleton Road, Westford, MA, 01886
Top holdings (ownership)
NTCT

Quick Takeaways

  • John Downing is an SEC filer tracked under CIK 0001232878.
  • 146 filings are listed on this profile.
  • Common form coverage includes 4, 144, 4/A.

What Changed

  • Latest filing: 4 filed on 23 Feb 2026.
  • Report period: 20 Feb 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 23 Feb 2026 for CIK 0001232878.

View Source Filing

Return Loop

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A newly filed 4 can change the filing history, ownership context, or next research path for John Downing.

Latest source-backed update
4 filed 23 Feb 2026
Why come back
Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 23 Feb 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 John Downing

Ownership report updated

Latest ownership report period: 20 Feb 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

23 Feb 2026

Page type

Ownership filings

Latest period

20 Feb 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 23 Feb 2026.

Open ownership filings Browse recent public updates

Filer Overview

John Downing has filed 146 SEC EDGAR filings since 16 Jun 2003. Common forms include 4, 144, 4/A.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for John Downing 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 PRIMARY DOCUMENT 23 Feb 2026 20 Feb 2026 000-26251
144 Open 144 document View SEC filing for 144 20 Feb 2026
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Feb 2026 18 Feb 2026 000-26251
144 Open 144 document View SEC filing for 144 18 Feb 2026
4 Open 4 document View SEC filing for 4 07 Nov 2025 06 Nov 2025 000-26251
144 Open 144 document View SEC filing for 144 06 Nov 2025
4 Open 4 document View SEC filing for 4 03 Nov 2025 03 Nov 2025 000-26251
144 Open 144 document View SEC filing for 144 03 Nov 2025
4 Open 4 document View SEC filing for 4 28 Oct 2025 26 Oct 2025 000-26251
4 Open 4 document View SEC filing for 4 12 Aug 2025 08 Aug 2025 000-26251
144 Open 144 document View SEC filing for 144 08 Aug 2025
4 Open 4 document View SEC filing for 4 17 Jun 2025 15 Jun 2025 000-26251
4 Open 4 document View SEC filing for 4 10 Jun 2025 06 Jun 2025 000-26251
4 Open 4 document View SEC filing for 4 06 Jun 2025 04 Jun 2025 000-26251
4 Open 4 document View SEC filing for 4 30 May 2025 29 May 2025 000-26251
144 Open 144 document View SEC filing for 144 29 May 2025
4/A Open 4/A document View SEC filing for 4/A 08 May 2025 06 May 2025 000-26251
4 Open 4 document View SEC filing for 4 07 May 2025 05 May 2025 000-26251
4 Open 4 document View SEC filing for 4 4 19 Feb 2025 18 Feb 2025 000-26251
144 Open 144 document View SEC filing for 144 18 Feb 2025
4 Open 4 document View SEC filing for 4 4 13 Nov 2024 11 Nov 2024 000-26251
144 Open 144 document View SEC filing for 144 12 Nov 2024
4 Open 4 document View SEC filing for 4 4 29 Oct 2024 26 Oct 2024 000-26251
4 Open 4 document View SEC filing for 4 4 16 Aug 2024 15 Aug 2024 000-26251
144 Open 144 document View SEC filing for 144 15 Aug 2024
4 Open 4 document View SEC filing for 4 4 18 Jun 2024 15 Jun 2024 000-26251
4 Open 4 document View SEC filing for 4 4 10 Jun 2024 06 Jun 2024 000-26251
4 Open 4 document View SEC filing for 4 4 05 Jun 2024 26 Oct 2023 000-26251
4 Open 4 document View SEC filing for 4 4 20 Feb 2024 16 Feb 2024 000-26251
144 Open 144 document View SEC filing for 144 16 Feb 2024
4 Open 4 document View SEC filing for 4 4 14 Nov 2023 10 Nov 2023 000-26251
144 Open 144 document View SEC filing for 144 13 Nov 2023
4 Open 4 document View SEC filing for 4 4 09 Aug 2023 08 Aug 2023 000-26251
144 Open 144 document View SEC filing for 144 08 Aug 2023
4 Open 4 document View SEC filing for 4 4 03 Aug 2023 01 Aug 2023 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jun 2023 15 Jun 2023 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jun 2023 03 Jun 2023 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2023 17 May 2023 000-26251
144 Open 144 document View SEC filing for 144 17 May 2023
4 Open 4 document View SEC filing for 4 4 16 May 2023 12 May 2023 000-26251
144 Open 144 document View SEC filing for 144 15 May 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Feb 2023 16 Feb 2023 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Nov 2022 10 Nov 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Oct 2022 25 Oct 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Aug 2022 09 Aug 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2022 01 Aug 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jun 2022 03 Jun 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2022 12 May 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Feb 2022 14 Feb 2022 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Nov 2021 09 Nov 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Aug 2021 09 Aug 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2021 01 Aug 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jun 2021 03 Jun 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 May 2021 10 May 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Feb 2021 10 Feb 2021 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Nov 2020 10 Nov 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Aug 2020 10 Aug 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Aug 2020 01 Aug 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jun 2020 03 Jun 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jun 2020 01 Jun 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 May 2020 12 May 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Feb 2020 10 Feb 2020 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Nov 2019 05 Nov 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Sep 2019 04 Sep 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Aug 2019 12 Aug 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Aug 2019 01 Aug 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Aug 2019 30 Jul 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jun 2019 03 Jun 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 May 2019 13 May 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2019 07 Feb 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Feb 2019 01 Feb 2019 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Dec 2018 11 Dec 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Nov 2018 13 Nov 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Nov 2018 06 Nov 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Sep 2018 04 Sep 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Aug 2018 06 Aug 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Aug 2018 01 Aug 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Jul 2018 18 Jul 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jun 2018 01 Jun 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 May 2018 08 May 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Feb 2018 02 Feb 2018 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Dec 2017 11 Dec 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Nov 2017 13 Nov 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Nov 2017 31 Oct 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Sep 2017 04 Sep 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Aug 2017 26 Aug 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Aug 2017 01 Aug 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jul 2017 25 Jul 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jun 2017 01 Jun 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 May 2017 10 May 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Feb 2017 03 Feb 2017 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Dec 2016 11 Dec 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Nov 2016 13 Nov 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Nov 2016 01 Nov 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Sep 2016 04 Sep 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Aug 2016 26 Aug 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Aug 2016 21 Aug 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Aug 2016 02 Aug 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jun 2016 01 Jun 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Feb 2016 02 Feb 2016 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Dec 2015 11 Dec 2015 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Nov 2015 13 Nov 2015 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Sep 2015 04 Sep 2015 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Aug 2015 26 Aug 2015 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2015 21 Aug 2015 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Apr 2015 11 Dec 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Nov 2014 13 Nov 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Sep 2014 07 Sep 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Aug 2014 26 Aug 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Aug 2014 21 Aug 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Jun 2014 08 Jun 2014 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 10 Sep 2013 07 Sep 2013 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 28 Aug 2013 26 Aug 2013 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 23 Aug 2013 21 Aug 2013 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 11 Jun 2013 08 Jun 2013 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 11 Sep 2012 07 Sep 2012 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 23 Aug 2012 21 Aug 2012 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 12 Jun 2012 08 Jun 2012 000-26251
4 Open 4 document View SEC filing for 4 08 Feb 2012 06 Feb 2012 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2012 31 Jan 2012 000-26251
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 09 Sep 2011 07 Sep 2011 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2011 08 Jun 2011 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 05 May 2011 03 May 2011 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2011 04 Feb 2011 000-26251
4 Open 4 document View SEC filing for 4 02 Feb 2011 01 Feb 2011 000-26251
4 Open 4 document View SEC filing for 4 28 Oct 2010 26 Oct 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2010 08 Jun 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 06 May 2010 04 May 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 17 Feb 2010 12 Feb 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 10 Feb 2010 08 Feb 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2010 04 Feb 2010 000-26251
4 Open 4 document View SEC filing for 4 FORM 4 28 Jan 2010 26 Jan 2010 000-26251

About this filer

John Downing files with the SEC under CIK 0001232878. This page aggregates EDGAR filings and related ownership activity.

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.
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Updates follow new EDGAR submissions and periodic data refreshes.