<SEC-DOCUMENT>0001193125-20-171296-index.html : 20200617
<SEC-HEADER>0001193125-20-171296.hdr.sgml : 20200617
<ACCEPTANCE-DATETIME>20200617160527
ACCESSION NUMBER:		0001193125-20-171296
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20200617
DATE AS OF CHANGE:		20200617

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:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-228970
		FILM NUMBER:		20969769

	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>424B5
<SEQUENCE>1
<FILENAME>d941898d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d941898d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g941898g41f26.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g941898g41f26.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g941898g47o32.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g941898g47o32.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g941898g56a26.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g941898g56a26.jpg

</DOCUMENT>
</SEC-DOCUMENT>