<SEC-DOCUMENT>0001567619-20-006172-index.html : 20200312
<SEC-HEADER>0001567619-20-006172.hdr.sgml : 20200312
<ACCEPTANCE-DATETIME>20200312160117
ACCESSION NUMBER:		0001567619-20-006172
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20200312
DATE AS OF CHANGE:		20200312
EFFECTIVENESS DATE:		20200312

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Boundless Bio, Inc.
		CENTRAL INDEX KEY:			0001782303
		IRS NUMBER:				830751369
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-362715
		FILM NUMBER:		20708706

	BUSINESS ADDRESS:	
		STREET 1:		11099 N TORREY PINES ROAD
		STREET 2:		SUITE 280
		CITY:			LA JOLLA
		STATE:			CA
		ZIP:			92037
		BUSINESS PHONE:		(858) 766-9912

	MAIL ADDRESS:	
		STREET 1:		11099 N TORREY PINES ROAD
		STREET 2:		SUITE 280
		CITY:			LA JOLLA
		STATE:			CA
		ZIP:			92037
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>