<SEC-DOCUMENT>0001564590-20-020537-index.html : 20200501
<SEC-HEADER>0001564590-20-020537.hdr.sgml : 20200501
<ACCEPTANCE-DATETIME>20200501165456
ACCESSION NUMBER:		0001564590-20-020537
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20200501
DATE AS OF CHANGE:		20200501
EFFECTIVENESS DATE:		20200501

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51173
		FILM NUMBER:		20841590

	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>DEFA14A
<SEQUENCE>1
<FILENAME>cbio-defa14a_20200611.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: cbio-defa14a_20200611.htm

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>gzgsx53ogwfo000003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: gzgsx53ogwfo000003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>gzgsx53ogwfo000002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: gzgsx53ogwfo000002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>gzgsx53ogwfo000004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: gzgsx53ogwfo000004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>gzgsx53ogwfo000001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: gzgsx53ogwfo000001.jpg

</DOCUMENT>
</SEC-DOCUMENT>