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 Weiguang Yang.

Business address: Nanxi Creative Center, Suite 218, 841 Yan An Middle Road, Jing An District, Shanghai, China, 200040
Top holdings (Schedule 13D): ZCMD

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Weiguang Yang has filed 5 SEC EDGAR filings since 26 Feb 2020

Recent SEC filings for Weiguang Yang including SCHEDULE 13D/A, 4, 3 and more.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
SCHEDULE 13D/A	Open SCHEDULE 13D/A document	View SEC filing for SCHEDULE 13D/A		27 Aug 2025
4	Open 4 document	View SEC filing for 4		02 Oct 2023	29 Sep 2023	001-40608
3	Open 3 document	View SEC filing for 3	OWNERSHIP DOCUMENT	22 Jul 2021	14 Jul 2021	001-40608
SC 13D/A	Open SC 13D/A document	View SEC filing for SC 13D/A	AMENDMENT NO. 1 TO SCHEDULE 13D	21 May 2021
SC 13D	Open SC 13D document	View SEC filing for SC 13D	SCHEDULE 13D	26 Feb 2020

Weiguang Yang files with the SEC under CIK 0001799603. 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.