Mark K. Mason SEC EDGAR Filings (CIK 0001396928)

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

Business address
601 Union Street, Suite 2000, Seattle, WA, 98101
Top holdings (ownership)
MCHB
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Mark K. Mason has filed 54 SEC EDGAR filings since 20 Apr 2007

Latest Filings

Recent SEC filings for Mark K. Mason including 4/A, 4, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 18 Dec 2025 02 Sep 2025 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 Sep 2025 02 Sep 2025 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 01 Jan 2025 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 Sep 2024 09 Dec 2022 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 01 Jan 2024 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 May 2023 02 May 2023 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 30 Mar 2023 28 Mar 2023 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 01 Jan 2023 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 09 Dec 2022 08 Dec 2022 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 30 Mar 2022 28 Mar 2022 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 28 Jan 2022 26 Jan 2022 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 01 Jan 2022 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 30 Mar 2021 28 Mar 2021 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2021 29 Jan 2021 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2021 01 Jan 2021 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 31 Mar 2020 28 Mar 2020 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 10 Mar 2020 08 Mar 2020 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 31 Jan 2020 29 Jan 2020 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 28 Jan 2020 26 Jan 2020 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2019 28 Mar 2019 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 11 Mar 2019 08 Mar 2019 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 31 Jan 2019 29 Jan 2019 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 29 Jan 2019 26 Jan 2019 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 01 May 2018 27 Apr 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 26 Mar 2018 23 Mar 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 15 Mar 2018 14 Mar 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 09 Mar 2018 08 Mar 2018 001-35424
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 07 Feb 2018 01 Feb 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2018 01 Feb 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 31 Jan 2018 26 Jan 2018 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 31 May 2017 29 May 2017 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 13 Mar 2017 13 Mar 2017 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 10 Mar 2017 08 Mar 2017 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 06 Feb 2017 06 Feb 2017 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 30 Jan 2017 26 Jan 2017 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 26 Jul 2016 22 Jul 2016 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 01 Jun 2016 27 May 2016 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 29 Apr 2016 28 Apr 2016 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2016 28 Jan 2016 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2015 29 May 2015 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2015 29 Jan 2015 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2014 29 May 2014 001-35424
4 Open 4 document View SEC filing for 4 FORM 4 25 Nov 2013 21 Nov 2013 001-35424
4/A Open 4/A document View SEC filing for 4/A MAIN DOCUMENT DESCRIPTION 03 May 2012 10 Feb 2012 001-35424
4/A Open 4/A document View SEC filing for 4/A MAIN DOCUMENT DESCRIPTION 23 Feb 2012 10 Feb 2012 001-35424
4/A Open 4/A document View SEC filing for 4/A MAIN DOCUMENT DESCRIPTION 22 Feb 2012 15 Feb 2012 001-35424
4/A Open 4/A document View SEC filing for 4/A MAIN DOCUMENT DESCRIPTION 17 Feb 2012 15 Feb 2012 001-35424
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 17 Feb 2012 15 Feb 2012 001-35424
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 15 Feb 2012 10 Feb 2012 001-35424
3 Open 3 document View SEC filing for 3 MAIN DOCUMENT DESCRIPTION 10 Feb 2012 10 Feb 2012 001-35424

About this filer

Mark K. Mason files with the SEC under CIK 0001396928. 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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