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 Michael E. Koester.

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Michael E. Koester has filed 9 SEC EDGAR filings since 27 Jan 2005

Recent SEC filings for Michael E. Koester including 4, SCHEDULE 13G/A, SC 13G and more.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4		19 Dec 2025	17 Dec 2025	814-01751
4	Open 4 document	View SEC filing for 4		26 Sep 2025	25 Sep 2025	814-01751
SCHEDULE 13G/A	Open SCHEDULE 13G/A document	View SEC filing for SCHEDULE 13G/A		04 Aug 2025
4	Open 4 document	View SEC filing for 4		11 Jul 2025	26 Jun 2025	814-01751
4	Open 4 document	View SEC filing for 4		27 Mar 2025	26 Mar 2025	814-01751
SC 13G	Open SC 13G document	View SEC filing for SC 13G		13 Nov 2024
4	Open 4 document	View SEC filing for 4	4	30 Sep 2024	26 Sep 2024	814-01751
3	Open 3 document	View SEC filing for 3		30 Aug 2024	30 Aug 2024	814-01751

Michael E. Koester files with the SEC under CIK 0001315794. 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.