<SEC-DOCUMENT>0001193125-18-016110-index.html : 20180122
<SEC-HEADER>0001193125-18-016110.hdr.sgml : 20180122
<ACCEPTANCE-DATETIME>20180122164001
ACCESSION NUMBER:		0001193125-18-016110
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20180122
DATE AS OF CHANGE:		20180122

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:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-222644
		FILM NUMBER:		18540223

	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>S-3
<SEQUENCE>1
<FILENAME>d493133ds3.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: d493133ds3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.5
<SEQUENCE>2
<FILENAME>d493133dex45.htm
<DESCRIPTION>EX-4.5
<TEXT>
Document 2 - file: d493133dex45.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>d493133dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: d493133dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>4
<FILENAME>d493133dex121.htm
<DESCRIPTION>EX-12.1
<TEXT>
Document 4 - file: d493133dex121.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>5
<FILENAME>d493133dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 5 - file: d493133dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g493133g47o32.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g493133g47o32.jpg

</DOCUMENT>
</SEC-DOCUMENT>