<SEC-DOCUMENT>0001193125-17-373702-index.html : 20171219
<SEC-HEADER>0001193125-17-373702.hdr.sgml : 20171219
<ACCEPTANCE-DATETIME>20171219170301
ACCESSION NUMBER:		0001193125-17-373702
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20171219
DATE AS OF CHANGE:		20171219

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:	333-210248
		FILM NUMBER:		171264699

	BUSINESS ADDRESS:	
		STREET 1:		260 LITTLEFIELD AVENUE
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		6507450655

	MAIL ADDRESS:	
		STREET 1:		260 LITTLEFIELD AVENUE
		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>d494331d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d494331d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g494331g47o32.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g494331g47o32.jpg

</DOCUMENT>
</SEC-DOCUMENT>