<SEC-DOCUMENT>0001140361-23-026623-index.html : 20230525
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<ACCEPTANCE-DATETIME>20230525160806
ACCESSION NUMBER:		0001140361-23-026623
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20230525
DATE AS OF CHANGE:		20230525
EFFECTIVENESS DATE:		20230525

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cyclerion Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001755237
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				831895370
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-482661
		FILM NUMBER:		23960506

	BUSINESS ADDRESS:	
		STREET 1:		301 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-621-7722

	MAIL ADDRESS:	
		STREET 1:		301 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
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<SEQUENCE>1
<FILENAME>primary_doc.xml
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Document 1 - file: primary_doc.html
Document 1 - RAW XML: primary_doc.xml
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