Mark Herndon SEC EDGAR Filings (CIK 0001754318)

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

Business address
C/O Safeguard Scientifics, Inc., 170 N. Radnor Chester Road, Suite 200, Radnor, PA, 19087
Top holdings (ownership)
SFE and HKHC
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Mark Herndon has filed 10 SEC EDGAR filings since 28 Sep 2018

Latest Filings

Recent SEC filings for Mark Herndon including 4, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 FORM 4 21 Nov 2025 20 Nov 2025 001-13458
4 Open 4 document View SEC filing for 4 FORM 4 05 Jun 2025 04 Jun 2025 001-13458
3 Open 3 document View SEC filing for 3 FORM 3 09 Aug 2024 01 Aug 2024 001-13458
4 Open 4 document View SEC filing for 4 FORM 4 19 Jan 2023 17 Jan 2023 001-05620
4 Open 4 document View SEC filing for 4 FORM 4 18 Jan 2022 17 Jan 2022 001-05620
4 Open 4 document View SEC filing for 4 FORM 4 21 Jan 2021 20 Jan 2021 001-05620
4 Open 4 document View SEC filing for 4 FORM 4 07 May 2020 06 May 2020 001-05620
4 Open 4 document View SEC filing for 4 FORM 4 10 Dec 2018 07 Dec 2018 001-05620
4 Open 4 document View SEC filing for 4 FORM 4 25 Oct 2018 23 Oct 2018 001-05620
3 Open 3 document View SEC filing for 3 FORM 3 28 Sep 2018 21 Sep 2018 001-05620

About this filer

Mark Herndon files with the SEC under CIK 0001754318. 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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