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 Rhonda Chicko.

Business address: Cyclerion Therapeutics, Inc., 254 First Street, 18 Th Floor, Cambridge, MA, 02142

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Rhonda Chicko has filed 5 SEC EDGAR filings since 23 May 2018

Recent SEC filings for Rhonda Chicko including 4, 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4	4	11 Aug 2025	07 Aug 2025	001-38787
3	Open 3 document	View SEC filing for 3	3	11 Mar 2024	04 Mar 2024	001-38787
4	Open 4 document	View SEC filing for 4	4	04 Feb 2019	31 Jan 2019	001-38501
4	Open 4 document	View SEC filing for 4	4	31 May 2018	29 May 2018	001-38501
3	Open 3 document	View SEC filing for 3	3	23 May 2018	23 May 2018	001-38501

Rhonda Chicko files with the SEC under CIK 0001740376. 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.