Renfeng Guo SEC EDGAR Filings (CIK 0001730244)

SEC EDGAR filings, ownership reports, and insider transactions for Renfeng Guo.

Business address
821 Gallery Lane, Ann Arbor, MI, 48103
Top holdings (ownership)
IFRX
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Renfeng Guo has filed 3 SEC EDGAR filings since 14 Feb 2018

Latest Filings

Recent SEC filings for Renfeng Guo including SC 13D, SC 13G/A, SC 13G.

Form type Document Filing Description Filing date Reporting date File number(s)
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 18 Feb 2020
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FORM SC 13G/A 12 Feb 2019
SC 13G Open SC 13G document View SEC filing for SC 13G FORM SC 13G 14 Feb 2018

About this filer

Renfeng Guo files with the SEC under CIK 0001730244. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

FAQ

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.

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