<SEC-DOCUMENT>0001193125-19-031054-index.html : 20190207
<SEC-HEADER>0001193125-19-031054.hdr.sgml : 20190207
<ACCEPTANCE-DATETIME>20190207180656
ACCESSION NUMBER:		0001193125-19-031054
CONFORMED SUBMISSION TYPE:	S-1MEF
PUBLIC DOCUMENT COUNT:		2
<REFERENCE-462B>333-228984
FILED AS OF DATE:		20190207
DATE AS OF CHANGE:		20190207
EFFECTIVENESS DATE:		20190207

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Gossamer Bio, Inc.
		CENTRAL INDEX KEY:			0001728117
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				475461709
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1MEF
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-229561
		FILM NUMBER:		19576339

	BUSINESS ADDRESS:	
		STREET 1:		3013 SCIENCE PARK
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		(858) 922-0718

	MAIL ADDRESS:	
		STREET 1:		3013 SCIENCE PARK
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1MEF
<SEQUENCE>1
<FILENAME>d704785ds1mef.htm
<DESCRIPTION>S-1MEF
<TEXT>
Document 1 - file: d704785ds1mef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>d704785dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 2 - file: d704785dex231.htm

</DOCUMENT>
</SEC-DOCUMENT>