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 Guizhen Ma.

Business address: Wanbo Science And Technology Park, 20 Fengxin Road, Yuhuatai District, Nanjing, Jiangsu Province, China, 210012

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Guizhen Ma has filed 2 SEC EDGAR filings since 30 Nov 2023

Recent SEC filings for Guizhen Ma including 3, 144.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
3	Open 3 document	View SEC filing for 3	3	18 Mar 2026	18 Mar 2026	001-40507
144	Open 144 document	View SEC filing for 144		30 Nov 2023

Guizhen Ma files with the SEC under CIK 0001976447. 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.