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.

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

Business address: C/O Athira Pharma, Inc., 18706 North Creek Parkway, Suite 104, Bothell, WA, 98011
Top holdings (ownership): ATHA

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Mark Worthington has filed 17 SEC EDGAR filings since 01 Jun 2021

Recent SEC filings for Mark Worthington including 4, 144, 4/A and more.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4		05 Jan 2026	31 Dec 2025	001-39503
4	Open 4 document	View SEC filing for 4		29 Dec 2025	24 Dec 2025	001-39503
4	Open 4 document	View SEC filing for 4		02 Jul 2025	30 Jun 2025	001-39503
144	Open 144 document	View SEC filing for 144		01 Jul 2025
4	Open 4 document	View SEC filing for 4		04 Mar 2025	03 Mar 2025	001-39503
4	Open 4 document	View SEC filing for 4		03 Jan 2025	31 Dec 2024	001-39503
144	Open 144 document	View SEC filing for 144		02 Jan 2025
4	Open 4 document	View SEC filing for 4		03 Oct 2024	01 Oct 2024	001-39503
4	Open 4 document	View SEC filing for 4		05 Sep 2024	03 Sep 2024	001-39503
4	Open 4 document	View SEC filing for 4		16 Feb 2024	14 Feb 2024	001-39503
4/A	Open 4/A document	View SEC filing for 4/A		16 Feb 2024	04 Jan 2024	001-39503
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	08 Jan 2024	04 Jan 2024	001-39503
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	23 Jan 2023	19 Jan 2023	001-39503
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	24 Jun 2022	22 Jun 2022	001-39503
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	20 Jan 2022	18 Jan 2022	001-39503
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Nov 2021	03 Nov 2021	001-39503
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	01 Jun 2021	01 Jun 2021	001-39503

Mark Worthington files with the SEC under CIK 0001861464. This page aggregates EDGAR filings and related ownership activity.

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.