Mark Zagorski SEC EDGAR Filings (CIK 0001709574)

SEC EDGAR filings, ownership reports, and insider transactions for Mark Zagorski.

Business address
C/O Doubleverify Holdings, 28 Crosby St, 6 Th Floor, New York, NY, 10013
Top holdings (ownership)
DV and OB
⭐ Add to watchlist ⭐
Get insider transactions for this reporting owner
Mark Zagorski has filed 53 SEC EDGAR filings since 12 Jul 2017

Latest Filings

Recent SEC filings for Mark Zagorski including 4, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2026 31 Dec 2025 001-40349
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Dec 2025 30 Nov 2025 001-40349
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Sep 2025 15 Sep 2025 001-40349
4 Open 4 document View SEC filing for 4 4 21 Aug 2025 19 Aug 2025 001-40349
4 Open 4 document View SEC filing for 4 4 17 Jun 2025 15 Jun 2025 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 09 Jun 2025 05 Jun 2025 001-40643
4 Open 4 document View SEC filing for 4 4 17 Mar 2025 13 Mar 2025 001-40349
4 Open 4 document View SEC filing for 4 4 10 Mar 2025 06 Mar 2025 001-40349
4 Open 4 document View SEC filing for 4 4 17 Dec 2024 15 Dec 2024 001-40349
4 Open 4 document View SEC filing for 4 4 02 Oct 2024 30 Sep 2024 001-40349
4 Open 4 document View SEC filing for 4 4 17 Sep 2024 15 Sep 2024 001-40349
4 Open 4 document View SEC filing for 4 4 02 Jul 2024 30 Jun 2024 001-40349
4 Open 4 document View SEC filing for 4 4 18 Jun 2024 15 Jun 2024 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 26 Apr 2024 25 Apr 2024 001-40643
3 Open 3 document View SEC filing for 3 FORM 3 26 Apr 2024 25 Apr 2024 001-40643
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Apr 2024 31 Mar 2024 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Mar 2024 15 Mar 2024 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2024 31 Dec 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2023 19 Dec 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2023 15 Dec 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2023 30 Sep 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Sep 2023 19 Sep 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Sep 2023 15 Sep 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 30 Jun 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jun 2023 15 Jun 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Apr 2023 31 Mar 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Mar 2023 15 Mar 2023 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2023 31 Dec 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Dec 2022 12 Dec 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Oct 2022 30 Sep 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Sep 2022 15 Sep 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2022 30 Jun 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2022 15 Jun 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 31 Mar 2022 29 Mar 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Mar 2022 15 Mar 2022 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Dec 2021 10 Dec 2021 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jul 2021 21 Jul 2021 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 May 2021 20 Apr 2021 001-40349
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 20 Apr 2021 20 Apr 2021 001-40349
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Apr 2020 01 Apr 2020 001-36384
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 03 Apr 2020 01 Apr 2020 001-36384
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Apr 2020 01 Apr 2020 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Feb 2020 14 Feb 2020 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Jul 2019 10 Jul 2019 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Mar 2019 28 Feb 2019 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Feb 2019 14 Feb 2019 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Jul 2018 10 Jul 2018 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Mar 2018 27 Feb 2018 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Nov 2017 17 Nov 2017 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Aug 2017 11 Aug 2017 001-35982
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Jul 2017 10 Jul 2017 001-35982
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 12 Jul 2017 10 Jul 2017 001-35982

About this filer

Mark Zagorski files with the SEC under CIK 0001709574. 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.

Related pages