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 S. Augustyn.

Business address: C/O Mercantile Bank Corporation, 310 Leonard St., Grand Rapids, MI, 49504
Top holdings (ownership): MBWM

Get insider transactions for this reporting owner

Mark S. Augustyn has filed 3 SEC EDGAR filings since 10 Jan 2025

Recent SEC filings for Mark S. Augustyn including 4, 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4	4	09 Feb 2026	12 Dec 2025	000-26719
4	Open 4 document	View SEC filing for 4		10 Feb 2025	06 Feb 2025	000-26719
3	Open 3 document	View SEC filing for 3		10 Jan 2025	01 Jan 2025	000-26719

Mark S. Augustyn files with the SEC under CIK 0002050906. 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.