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 Huifeng Chang.

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Huifeng Chang has filed 7 SEC EDGAR filings since 18 May 2020

Recent SEC filings for Huifeng Chang including 144, 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
144	Open 144 document	View SEC filing for 144		16 Jun 2025
144	Open 144 document	View SEC filing for 144		11 Jun 2025
144	Open 144 document	View SEC filing for 144		12 Jun 2024
144	Open 144 document	View SEC filing for 144		11 Jun 2024
144	Open 144 document	View SEC filing for 144		04 Jun 2024
3	Open 3 document	View SEC filing for 3	FORM 3	06 Apr 2022	06 Apr 2022	001-41351
3	Open 3 document	View SEC filing for 3		18 May 2020	07 May 2020	001-38799

Huifeng Chang files with the SEC under CIK 0001811422. 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.