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 Hansoo Michael Keyoung.

Business address: C/O Graybug Vision, Inc., 275 Shoreline Drive, Suite 450, Redwood City, CA, 94065
Top holdings (ownership): KAPA

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Hansoo Michael Keyoung has filed 4 SEC EDGAR filings since 24 Sep 2020

Recent SEC filings for Hansoo Michael Keyoung 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	26 Nov 2025	16 Sep 2025	001-42275
3	Open 3 document	View SEC filing for 3		24 Sep 2024	16 Sep 2024	001-42275
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	29 Sep 2020	29 Sep 2020	001-39538
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	24 Sep 2020	24 Sep 2020	001-39538

Hansoo Michael Keyoung files with the SEC under CIK 0001824764. 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.