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 W. YUSKO.

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MARK W. YUSKO has filed 11 SEC EDGAR filings since 19 Mar 2004

Recent SEC filings for MARK W. YUSKO including 4, 3, 5 and more.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4		24 Sep 2025	22 Sep 2025	001-42103
3	Open 3 document	View SEC filing for 3		14 Aug 2025	14 Aug 2025	001-42103

MARK W. YUSKO files with the SEC under CIK 0001284291. 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.