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 wen-han chang.

Business address: No 463 Fl 4, Ming Shue Road, Taipei, Taiwan, Province of China, 104046
Top holdings (ownership): AIMD

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wen-han chang has filed 9 SEC EDGAR filings since 28 Apr 2021

Recent SEC filings for wen-han chang including 4, 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4		26 Nov 2025	25 Nov 2025	001-41461
4	Open 4 document	View SEC filing for 4		12 Mar 2025	10 Mar 2025	001-41461
4	Open 4 document	View SEC filing for 4		31 Jan 2025	31 Jan 2025	001-41461
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	02 Feb 2024	31 Jan 2024	001-41461
4	Open 4 document	View SEC filing for 4	FORM 4	28 Nov 2023	24 Nov 2023	001-41461
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	12 Apr 2023	10 Apr 2023	001-41461
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	29 Jul 2022	28 Jul 2022	000-20791
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	09 Dec 2021	06 Dec 2021	000-20791
3	Open 3 document	View SEC filing for 3	PRIMARY DOCUMENT	28 Apr 2021	15 Apr 2021	000-20791

wen-han chang files with the SEC under CIK 0001859316. 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.