<SEC-DOCUMENT>0001140361-23-049997-index.html : 20231027
<SEC-HEADER>0001140361-23-049997.hdr.sgml : 20231027
<ACCEPTANCE-DATETIME>20231027171013
ACCESSION NUMBER:		0001140361-23-049997
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20231027
DATE AS OF CHANGE:		20231027

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CATALYST BIOSCIENCES, INC.
		CENTRAL INDEX KEY:			0001124105
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				562020050
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-273395
		FILM NUMBER:		231356309

	BUSINESS ADDRESS:	
		STREET 1:		611 GATEWAY BLVD., SUITE 710
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		650-871-0761

	MAIL ADDRESS:	
		STREET 1:		611 GATEWAY BLVD., SUITE 710
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TARGACEPT INC
		DATE OF NAME CHANGE:	20000919
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>ny20009756x6_424b3.htm
<DESCRIPTION>FORM 424B3
<TEXT>
Document 1 - file: ny20009756x6_424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>logo_catalystbio.jpg
<TEXT>
Document 2 - file: logo_catalystbio.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>logo_catalystbiox1.jpg
<TEXT>
Document 3 - file: logo_catalystbiox1.jpg

</DOCUMENT>
</SEC-DOCUMENT>