<SEC-DOCUMENT>0001728117-26-000037-index.html : 20260518
<SEC-HEADER>0001728117-26-000037.hdr.sgml : 20260518
<ACCEPTANCE-DATETIME>20260518070740
ACCESSION NUMBER:		0001728117-26-000037
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20260518
DATE AS OF CHANGE:		20260518

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Gossamer Bio, Inc.
		CENTRAL INDEX KEY:			0001728117
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				475461709
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38796
		FILM NUMBER:		26990764

	BUSINESS ADDRESS:	
		STREET 1:		3115 MERRYFIELD ROW
		STREET 2:		SUITE 120
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		(858) 684-1300

	MAIL ADDRESS:	
		STREET 1:		3115 MERRYFIELD ROW
		STREET 2:		SUITE 120
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>a20260518-gossxdefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: a20260518-gossxdefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: image_0.jpg

</DOCUMENT>
</SEC-DOCUMENT>